sys/androidmedia/gstamc.c - mtk-gst-plugins-bad-debian - Git at Google

 /*
  * Copyright (C) 2012, Collabora Ltd.
  *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
  * Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation
  * version 2.1 of the License.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  *
  */

 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif

 #ifdef HAVE_ORC
 #include <orc/orc.h>
 #else
 #define orc_memcpy memcpy
 #endif

 #include "gstahcsrc.h"

 #include "gstamc.h"
 #include "gstamc-constants.h"

 #include "gstamcvideodec.h"
 #include "gstamcvideoenc.h"
 #include "gstamcaudiodec.h"
 #include "gstjniutils.h"

 #include <gst/gst.h>
 #include <gst/video/video.h>
 #include <gst/audio/audio.h>
 #include <string.h>

 GST_DEBUG_CATEGORY (gst_amc_debug);
 #define GST_CAT_DEFAULT gst_amc_debug

 GQuark gst_amc_codec_info_quark = 0;

 static GList *codec_infos = NULL;
 #ifdef GST_AMC_IGNORE_UNKNOWN_COLOR_FORMATS
 static gboolean ignore_unknown_color_formats = TRUE;
 #else
 static gboolean ignore_unknown_color_formats = FALSE;
 #endif

 static gboolean accepted_color_formats (GstAmcCodecType * type,
     gboolean is_encoder);

 /* Global cached references */
 static struct
 {
   jclass klass;
   jmethodID constructor;
 } java_string;
 static struct
 {
   jclass klass;
   jmethodID configure;
   jmethodID create_by_codec_name;
   jmethodID dequeue_input_buffer;
   jmethodID dequeue_output_buffer;
   jmethodID flush;
   jmethodID get_input_buffers;
   jmethodID get_input_buffer;
   jmethodID get_output_buffers;
   jmethodID get_output_buffer;
   jmethodID get_output_format;
   jmethodID queue_input_buffer;
   jmethodID release;
   jmethodID release_output_buffer;
   jmethodID start;
   jmethodID stop;
 } media_codec;
 static struct
 {
   jclass klass;
   jmethodID constructor;
   jfieldID flags;
   jfieldID offset;
   jfieldID presentation_time_us;
   jfieldID size;
 } media_codec_buffer_info;
 static struct
 {
   jclass klass;
   jmethodID create_audio_format;
   jmethodID create_video_format;
   jmethodID to_string;
   jmethodID contains_key;
   jmethodID get_float;
   jmethodID set_float;
   jmethodID get_integer;
   jmethodID set_integer;
   jmethodID get_string;
   jmethodID set_string;
   jmethodID get_byte_buffer;
   jmethodID set_byte_buffer;
 } media_format;

 static GstAmcBuffer *gst_amc_codec_get_input_buffers (GstAmcCodec * codec,
     gsize * n_buffers, GError ** err);
 static GstAmcBuffer *gst_amc_codec_get_output_buffers (GstAmcCodec * codec,
     gsize * n_buffers, GError ** err);

 GstAmcCodec *
 gst_amc_codec_new (const gchar * name, GError ** err)
 {
   JNIEnv *env;
   GstAmcCodec *codec = NULL;
   jstring name_str;
   jobject object = NULL;

   g_return_val_if_fail (name != NULL, NULL);

   env = gst_amc_jni_get_env ();

   name_str = gst_amc_jni_string_from_gchar (env, err, FALSE, name);
   if (!name_str) {
     goto error;
   }

   codec = g_slice_new0 (GstAmcCodec);

   if (!gst_amc_jni_call_static_object_method (env, err, media_codec.klass,
           media_codec.create_by_codec_name, &object, name_str))
     goto error;

   codec->object = gst_amc_jni_object_make_global (env, object);
   object = NULL;

   if (!codec->object) {
     gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
         GST_LIBRARY_ERROR_SETTINGS, "Failed to create global codec reference");
     goto error;
   }

 done:
   if (name_str)
     gst_amc_jni_object_local_unref (env, name_str);
   name_str = NULL;

   return codec;

 error:
   if (codec)
     g_slice_free (GstAmcCodec, codec);
   codec = NULL;
   goto done;
 }

 void
 gst_amc_codec_free (GstAmcCodec * codec)
 {
   JNIEnv *env;

   g_return_if_fail (codec != NULL);

   env = gst_amc_jni_get_env ();

   if (codec->input_buffers)
     gst_amc_jni_free_buffer_array (env, codec->input_buffers,
         codec->n_input_buffers);
   codec->input_buffers = NULL;
   codec->n_input_buffers = 0;

   if (codec->output_buffers)
     gst_amc_jni_free_buffer_array (env, codec->output_buffers,
         codec->n_output_buffers);
   codec->output_buffers = NULL;
   codec->n_output_buffers = 0;

   gst_amc_jni_object_unref (env, codec->object);
   g_slice_free (GstAmcCodec, codec);
 }

 gboolean
 gst_amc_codec_configure (GstAmcCodec * codec, GstAmcFormat * format,
     jobject surface, gint flags, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);
   g_return_val_if_fail (format != NULL, FALSE);

   env = gst_amc_jni_get_env ();
   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.configure, format->object, surface, NULL, flags);
 }

 GstAmcFormat *
 gst_amc_codec_get_output_format (GstAmcCodec * codec, GError ** err)
 {
   JNIEnv *env;
   GstAmcFormat *ret = NULL;
   jobject object = NULL;

   g_return_val_if_fail (codec != NULL, NULL);

   env = gst_amc_jni_get_env ();

   if (!gst_amc_jni_call_object_method (env, err, codec->object,
           media_codec.get_output_format, &object))
     goto done;

   ret = g_slice_new0 (GstAmcFormat);

   ret->object = gst_amc_jni_object_make_global (env, object);
   if (!ret->object) {
     gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
         GST_LIBRARY_ERROR_SETTINGS, "Failed to create global format reference");
     g_slice_free (GstAmcFormat, ret);
     ret = NULL;
   }

 done:

   return ret;
 }

 gboolean
 gst_amc_codec_start (GstAmcCodec * codec, GError ** err)
 {
   JNIEnv *env;
   gboolean ret;

   g_return_val_if_fail (codec != NULL, FALSE);

   env = gst_amc_jni_get_env ();
   ret = gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.start);
   if (!ret)
     return ret;

   if (!media_codec.get_input_buffer) {
     if (codec->input_buffers)
       gst_amc_jni_free_buffer_array (env, codec->input_buffers,
           codec->n_input_buffers);
     codec->input_buffers =
         gst_amc_codec_get_input_buffers (codec, &codec->n_input_buffers, err);
     if (!codec->input_buffers) {
       gst_amc_codec_stop (codec, NULL);
       return FALSE;
     }
   }

   return ret;
 }

 gboolean
 gst_amc_codec_stop (GstAmcCodec * codec, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   if (codec->input_buffers)
     gst_amc_jni_free_buffer_array (env, codec->input_buffers,
         codec->n_input_buffers);
   codec->input_buffers = NULL;
   codec->n_input_buffers = 0;

   if (codec->output_buffers)
     gst_amc_jni_free_buffer_array (env, codec->output_buffers,
         codec->n_output_buffers);
   codec->output_buffers = NULL;
   codec->n_output_buffers = 0;

   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.stop);
 }

 gboolean
 gst_amc_codec_flush (GstAmcCodec * codec, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);

   env = gst_amc_jni_get_env ();
   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.flush);
 }

 gboolean
 gst_amc_codec_release (GstAmcCodec * codec, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   if (codec->input_buffers)
     gst_amc_jni_free_buffer_array (env, codec->input_buffers,
         codec->n_input_buffers);
   codec->input_buffers = NULL;
   codec->n_input_buffers = 0;

   if (codec->output_buffers)
     gst_amc_jni_free_buffer_array (env, codec->output_buffers,
         codec->n_output_buffers);
   codec->output_buffers = NULL;
   codec->n_output_buffers = 0;

   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.release);
 }

 static GstAmcBuffer *
 gst_amc_codec_get_output_buffers (GstAmcCodec * codec, gsize * n_buffers,
     GError ** err)
 {
   JNIEnv *env;
   jobject output_buffers = NULL;
   GstAmcBuffer *ret = NULL;

   g_return_val_if_fail (codec != NULL, NULL);
   g_return_val_if_fail (n_buffers != NULL, NULL);

   *n_buffers = 0;
   env = gst_amc_jni_get_env ();

   if (!gst_amc_jni_call_object_method (env, err, codec->object,
           media_codec.get_output_buffers, &output_buffers))
     goto done;

   gst_amc_jni_get_buffer_array (env, err, output_buffers, &ret, n_buffers);

 done:
   if (output_buffers)
     gst_amc_jni_object_local_unref (env, output_buffers);

   return ret;
 }

 GstAmcBuffer *
 gst_amc_codec_get_output_buffer (GstAmcCodec * codec, gint index, GError ** err)
 {
   JNIEnv *env;
   jobject buffer = NULL;
   GstAmcBuffer *ret = NULL;

   g_return_val_if_fail (codec != NULL, NULL);
   g_return_val_if_fail (index >= 0, NULL);

   env = gst_amc_jni_get_env ();

   if (!media_codec.get_output_buffer) {
     g_return_val_if_fail (index < codec->n_output_buffers && index >= 0, NULL);
     if (codec->output_buffers[index].object)
       return gst_amc_buffer_copy (&codec->output_buffers[index]);
     else
       return NULL;
   }

   if (!gst_amc_jni_call_object_method (env, err, codec->object,
           media_codec.get_output_buffer, &buffer, index))
     goto done;

   if (buffer != NULL) {
     ret = g_new0 (GstAmcBuffer, 1);
     ret->object = gst_amc_jni_object_make_global (env, buffer);
     if (!ret->object) {
       gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
           GST_LIBRARY_ERROR_FAILED, "Failed to create global buffer reference");
       goto error;
     }

     ret->data = (*env)->GetDirectBufferAddress (env, ret->object);
     if (!ret->data) {
       gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
           GST_LIBRARY_ERROR_FAILED, "Failed to get buffer address");
       goto error;
     }
     ret->size = (*env)->GetDirectBufferCapacity (env, ret->object);
   }

 done:

   return ret;

 error:
   if (ret->object)
     gst_amc_jni_object_unref (env, ret->object);
   g_free (ret);

   return NULL;
 }

 static GstAmcBuffer *
 gst_amc_codec_get_input_buffers (GstAmcCodec * codec, gsize * n_buffers,
     GError ** err)
 {
   JNIEnv *env;
   jobject input_buffers = NULL;
   GstAmcBuffer *ret = NULL;

   g_return_val_if_fail (codec != NULL, NULL);
   g_return_val_if_fail (n_buffers != NULL, NULL);

   *n_buffers = 0;
   env = gst_amc_jni_get_env ();

   if (!gst_amc_jni_call_object_method (env, err, codec->object,
           media_codec.get_input_buffers, &input_buffers))
     goto done;

   gst_amc_jni_get_buffer_array (env, err, input_buffers, &ret, n_buffers);

 done:
   if (input_buffers)
     gst_amc_jni_object_local_unref (env, input_buffers);

   return ret;
 }

 GstAmcBuffer *
 gst_amc_codec_get_input_buffer (GstAmcCodec * codec, gint index, GError ** err)
 {
   JNIEnv *env;
   jobject buffer = NULL;
   GstAmcBuffer *ret = NULL;

   g_return_val_if_fail (codec != NULL, NULL);
   g_return_val_if_fail (index >= 0, NULL);

   env = gst_amc_jni_get_env ();

   if (!media_codec.get_input_buffer) {
     g_return_val_if_fail (index < codec->n_input_buffers && index >= 0, NULL);
     if (codec->input_buffers[index].object)
       return gst_amc_buffer_copy (&codec->input_buffers[index]);
     else
       return NULL;
   }

   if (!gst_amc_jni_call_object_method (env, err, codec->object,
           media_codec.get_input_buffer, &buffer, index))
     goto done;

   if (buffer != NULL) {
     ret = g_new0 (GstAmcBuffer, 1);
     ret->object = gst_amc_jni_object_make_global (env, buffer);
     if (!ret->object) {
       gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
           GST_LIBRARY_ERROR_FAILED, "Failed to create global buffer reference");
       goto error;
     }

     ret->data = (*env)->GetDirectBufferAddress (env, ret->object);
     if (!ret->data) {
       gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
           GST_LIBRARY_ERROR_FAILED, "Failed to get buffer address");
       goto error;
     }
     ret->size = (*env)->GetDirectBufferCapacity (env, ret->object);
   }

 done:

   return ret;

 error:
   if (ret->object)
     gst_amc_jni_object_unref (env, ret->object);
   g_free (ret);

   return NULL;
 }

 gint
 gst_amc_codec_dequeue_input_buffer (GstAmcCodec * codec, gint64 timeoutUs,
     GError ** err)
 {
   JNIEnv *env;
   gint ret = G_MININT;

   g_return_val_if_fail (codec != NULL, G_MININT);

   env = gst_amc_jni_get_env ();
   if (!gst_amc_jni_call_int_method (env, err, codec->object,
           media_codec.dequeue_input_buffer, &ret, timeoutUs))
     return G_MININT;

   return ret;
 }

 static gboolean
 gst_amc_codec_fill_buffer_info (JNIEnv * env, jobject buffer_info,
     GstAmcBufferInfo * info, GError ** err)
 {
   g_return_val_if_fail (buffer_info != NULL, FALSE);

   if (!gst_amc_jni_get_int_field (env, err, buffer_info,
           media_codec_buffer_info.flags, &info->flags))
     return FALSE;

   if (!gst_amc_jni_get_int_field (env, err, buffer_info,
           media_codec_buffer_info.offset, &info->offset))
     return FALSE;

   if (!gst_amc_jni_get_long_field (env, err, buffer_info,
           media_codec_buffer_info.presentation_time_us,
           &info->presentation_time_us))
     return FALSE;

   if (!gst_amc_jni_get_int_field (env, err, buffer_info,
           media_codec_buffer_info.size, &info->size))
     return FALSE;

   return TRUE;
 }

 gint
 gst_amc_codec_dequeue_output_buffer (GstAmcCodec * codec,
     GstAmcBufferInfo * info, gint64 timeoutUs, GError ** err)
 {
   JNIEnv *env;
   gint ret = G_MININT;
   jobject info_o = NULL;

   g_return_val_if_fail (codec != NULL, G_MININT);

   env = gst_amc_jni_get_env ();

   info_o =
       gst_amc_jni_new_object (env, err, FALSE, media_codec_buffer_info.klass,
       media_codec_buffer_info.constructor);
   if (!info_o)
     goto done;

   if (!gst_amc_jni_call_int_method (env, err, codec->object,
           media_codec.dequeue_output_buffer, &ret, info_o, timeoutUs)) {
     ret = G_MININT;
     goto done;
   }

   if (ret == INFO_OUTPUT_BUFFERS_CHANGED || ret == INFO_OUTPUT_FORMAT_CHANGED
       || (ret >= 0 && !codec->output_buffers
           && !media_codec.get_output_buffer)) {
     if (!media_codec.get_output_buffer) {
       if (codec->output_buffers)
         gst_amc_jni_free_buffer_array (env, codec->output_buffers,
             codec->n_output_buffers);
       codec->output_buffers =
           gst_amc_codec_get_output_buffers (codec,
           &codec->n_output_buffers, err);
       if (!codec->output_buffers) {
         ret = G_MININT;
         goto done;
       }
     }
     if (ret == INFO_OUTPUT_BUFFERS_CHANGED) {
       gst_amc_jni_object_local_unref (env, info_o);
       return gst_amc_codec_dequeue_output_buffer (codec, info, timeoutUs, err);
     }
   } else if (ret < 0) {
     goto done;
   }

   if (ret >= 0 && !gst_amc_codec_fill_buffer_info (env, info_o, info, err)) {
     ret = G_MININT;
     goto done;
   }

 done:
   if (info_o)
     gst_amc_jni_object_local_unref (env, info_o);
   info_o = NULL;

   return ret;
 }

 gboolean
 gst_amc_codec_queue_input_buffer (GstAmcCodec * codec, gint index,
     const GstAmcBufferInfo * info, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);
   g_return_val_if_fail (info != NULL, FALSE);

   env = gst_amc_jni_get_env ();
   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.queue_input_buffer, index, info->offset, info->size,
       info->presentation_time_us, info->flags);
 }

 gboolean
 gst_amc_codec_release_output_buffer (GstAmcCodec * codec, gint index,
     gboolean render, GError ** err)
 {
   JNIEnv *env;

   g_return_val_if_fail (codec != NULL, FALSE);

   env = gst_amc_jni_get_env ();
   return gst_amc_jni_call_void_method (env, err, codec->object,
       media_codec.release_output_buffer, index, render);
 }

 GstAmcFormat *
 gst_amc_format_new_audio (const gchar * mime, gint sample_rate, gint channels,
     GError ** err)
 {
   JNIEnv *env;
   GstAmcFormat *format = NULL;
   jstring mime_str;

   g_return_val_if_fail (mime != NULL, NULL);

   env = gst_amc_jni_get_env ();

   mime_str = gst_amc_jni_string_from_gchar (env, err, FALSE, mime);
   if (!mime_str)
     goto error;

   format = g_slice_new0 (GstAmcFormat);
   format->object =
       gst_amc_jni_new_object_from_static (env, err, TRUE, media_format.klass,
       media_format.create_audio_format, mime_str, sample_rate, channels);
   if (!format->object)
     goto error;

 done:
   if (mime_str)
     gst_amc_jni_object_local_unref (env, mime_str);
   mime_str = NULL;

   return format;

 error:
   if (format)
     g_slice_free (GstAmcFormat, format);
   format = NULL;
   goto done;
 }

 GstAmcFormat *
 gst_amc_format_new_video (const gchar * mime, gint width, gint height,
     GError ** err)
 {
   JNIEnv *env;
   GstAmcFormat *format = NULL;
   jstring mime_str;

   g_return_val_if_fail (mime != NULL, NULL);

   env = gst_amc_jni_get_env ();

   mime_str = gst_amc_jni_string_from_gchar (env, err, FALSE, mime);
   if (!mime_str)
     goto error;

   format = g_slice_new0 (GstAmcFormat);
   format->object =
       gst_amc_jni_new_object_from_static (env, err, TRUE, media_format.klass,
       media_format.create_video_format, mime_str, width, height);
   if (!format->object)
     goto error;

 done:
   if (mime_str)
     gst_amc_jni_object_local_unref (env, mime_str);
   mime_str = NULL;

   return format;

 error:
   if (format)
     g_slice_free (GstAmcFormat, format);
   format = NULL;
   goto done;
 }

 void
 gst_amc_format_free (GstAmcFormat * format)
 {
   JNIEnv *env;

   g_return_if_fail (format != NULL);

   env = gst_amc_jni_get_env ();
   gst_amc_jni_object_unref (env, format->object);
   g_slice_free (GstAmcFormat, format);
 }

 gchar *
 gst_amc_format_to_string (GstAmcFormat * format, GError ** err)
 {
   JNIEnv *env;
   jstring v_str = NULL;
   gchar *ret = NULL;

   g_return_val_if_fail (format != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   if (!gst_amc_jni_call_object_method (env, err, format->object,
           media_format.to_string, &v_str))
     goto done;
   ret = gst_amc_jni_string_to_gchar (env, v_str, TRUE);

 done:

   return ret;
 }

 gboolean
 gst_amc_format_contains_key (GstAmcFormat * format, const gchar * key,
     GError ** err)
 {
   JNIEnv *env;
   gboolean ret = FALSE;
   jstring key_str = NULL;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_boolean_method (env, err, format->object,
           media_format.contains_key, &ret, key_str))
     goto done;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;
 }

 gboolean
 gst_amc_format_get_float (GstAmcFormat * format, const gchar * key,
     gfloat * value, GError ** err)
 {
   JNIEnv *env;
   gboolean ret = FALSE;
   jstring key_str = NULL;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (value != NULL, FALSE);

   *value = 0;
   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_float_method (env, err, format->object,
           media_format.get_float, value, key_str))
     goto done;
   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;
 }

 gboolean
 gst_amc_format_set_float (GstAmcFormat * format, const gchar * key,
     gfloat value, GError ** err)
 {
   JNIEnv *env;
   jstring key_str = NULL;
   gboolean ret = FALSE;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_void_method (env, err, format->object,
           media_format.set_float, key_str, value))
     goto done;

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;
 }

 gboolean
 gst_amc_format_get_int (GstAmcFormat * format, const gchar * key, gint * value,
     GError ** err)
 {
   JNIEnv *env;
   gboolean ret = FALSE;
   jstring key_str = NULL;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (value != NULL, FALSE);

   *value = 0;
   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_int_method (env, err, format->object,
           media_format.get_integer, value, key_str))
     goto done;
   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;

 }

 gboolean
 gst_amc_format_set_int (GstAmcFormat * format, const gchar * key, gint value,
     GError ** err)
 {
   JNIEnv *env;
   jstring key_str = NULL;
   gboolean ret = FALSE;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_void_method (env, err, format->object,
           media_format.set_integer, key_str, value))
     goto done;

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;
 }

 gboolean
 gst_amc_format_get_string (GstAmcFormat * format, const gchar * key,
     gchar ** value, GError ** err)
 {
   JNIEnv *env;
   gboolean ret = FALSE;
   jstring key_str = NULL;
   jstring v_str = NULL;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (value != NULL, FALSE);

   *value = 0;
   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_object_method (env, err, format->object,
           media_format.get_string, &v_str, key_str))
     goto done;

   *value = gst_amc_jni_string_to_gchar (env, v_str, TRUE);

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);

   return ret;
 }

 gboolean
 gst_amc_format_set_string (GstAmcFormat * format, const gchar * key,
     const gchar * value, GError ** err)
 {
   JNIEnv *env;
   jstring key_str = NULL;
   jstring v_str = NULL;
   gboolean ret = FALSE;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (value != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   v_str = gst_amc_jni_string_from_gchar (env, err, FALSE, value);
   if (!v_str)
     goto done;

   if (!gst_amc_jni_call_void_method (env, err, format->object,
           media_format.set_string, key_str, v_str))
     goto done;

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);
   if (v_str)
     gst_amc_jni_object_local_unref (env, v_str);

   return ret;
 }

 gboolean
 gst_amc_format_get_buffer (GstAmcFormat * format, const gchar * key,
     guint8 ** data, gsize * size, GError ** err)
 {
   JNIEnv *env;
   gboolean ret = FALSE;
   jstring key_str = NULL;
   jobject v = NULL;
   GstAmcBuffer buf = { 0, };
   gint position = 0, limit = 0;

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (data != NULL, FALSE);
   g_return_val_if_fail (size != NULL, FALSE);

   *data = NULL;
   *size = 0;
   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   if (!gst_amc_jni_call_object_method (env, err, format->object,
           media_format.get_byte_buffer, &v, key_str))
     goto done;

   *data = (*env)->GetDirectBufferAddress (env, v);
   if (*data == NULL) {
     gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
         GST_LIBRARY_ERROR_FAILED, "Failed get buffer address");
     goto done;
   }
   *size = (*env)->GetDirectBufferCapacity (env, v);

   buf.object = v;
   buf.data = *data;
   buf.size = *size;
   gst_amc_buffer_get_position_and_limit (&buf, NULL, &position, &limit);
   *size = limit;

   *data = g_memdup (*data + position, limit);

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);
   if (v)
     gst_amc_jni_object_local_unref (env, v);

   return ret;
 }

 gboolean
 gst_amc_format_set_buffer (GstAmcFormat * format, const gchar * key,
     guint8 * data, gsize size, GError ** err)
 {
   JNIEnv *env;
   jstring key_str = NULL;
   jobject v = NULL;
   gboolean ret = FALSE;
   GstAmcBuffer buf = { 0, };

   g_return_val_if_fail (format != NULL, FALSE);
   g_return_val_if_fail (key != NULL, FALSE);
   g_return_val_if_fail (data != NULL, FALSE);

   env = gst_amc_jni_get_env ();

   key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
   if (!key_str)
     goto done;

   /* FIXME: The memory must remain valid until the codec is stopped */
   v = (*env)->NewDirectByteBuffer (env, data, size);
   if (!v) {
     gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
         GST_LIBRARY_ERROR_FAILED, "Failed create Java byte buffer");
     goto done;
   }

   buf.object = v;
   buf.data = data;
   buf.size = size;

   gst_amc_buffer_set_position_and_limit (&buf, NULL, 0, size);

   if (!gst_amc_jni_call_void_method (env, err, format->object,
           media_format.set_byte_buffer, key_str, v))
     goto done;

   ret = TRUE;

 done:
   if (key_str)
     gst_amc_jni_object_local_unref (env, key_str);
   if (v)
     gst_amc_jni_object_local_unref (env, v);

   return ret;
 }

 static gboolean
 get_java_classes (void)
 {
   gboolean ret = TRUE;
   JNIEnv *env;
   jclass tmp;

   GST_DEBUG ("Retrieving Java classes");

   env = gst_amc_jni_get_env ();

   tmp = (*env)->FindClass (env, "java/lang/String");
   if (!tmp) {
     ret = FALSE;
     GST_ERROR ("Failed to get string class");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   java_string.klass = (*env)->NewGlobalRef (env, tmp);
   if (!java_string.klass) {
     ret = FALSE;
     GST_ERROR ("Failed to get string class global reference");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   (*env)->DeleteLocalRef (env, tmp);
   tmp = NULL;

   java_string.constructor =
       (*env)->GetMethodID (env, java_string.klass, "<init>", "([C)V");
   if (!java_string.constructor) {
     ret = FALSE;
     GST_ERROR ("Failed to get string methods");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

   tmp = (*env)->FindClass (env, "android/media/MediaCodec");
   if (!tmp) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec class");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   media_codec.klass = (*env)->NewGlobalRef (env, tmp);
   if (!media_codec.klass) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec class global reference");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   (*env)->DeleteLocalRef (env, tmp);
   tmp = NULL;

   media_codec.create_by_codec_name =
       (*env)->GetStaticMethodID (env, media_codec.klass, "createByCodecName",
       "(Ljava/lang/String;)Landroid/media/MediaCodec;");
   media_codec.configure =
       (*env)->GetMethodID (env, media_codec.klass, "configure",
       "(Landroid/media/MediaFormat;Landroid/view/Surface;Landroid/media/MediaCrypto;I)V");
   media_codec.dequeue_input_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "dequeueInputBuffer",
       "(J)I");
   media_codec.dequeue_output_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "dequeueOutputBuffer",
       "(Landroid/media/MediaCodec$BufferInfo;J)I");
   media_codec.flush =
       (*env)->GetMethodID (env, media_codec.klass, "flush", "()V");
   media_codec.get_input_buffers =
       (*env)->GetMethodID (env, media_codec.klass, "getInputBuffers",
       "()[Ljava/nio/ByteBuffer;");
   media_codec.get_output_buffers =
       (*env)->GetMethodID (env, media_codec.klass, "getOutputBuffers",
       "()[Ljava/nio/ByteBuffer;");
   media_codec.get_output_format =
       (*env)->GetMethodID (env, media_codec.klass, "getOutputFormat",
       "()Landroid/media/MediaFormat;");
   media_codec.queue_input_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "queueInputBuffer",
       "(IIIJI)V");
   media_codec.release =
       (*env)->GetMethodID (env, media_codec.klass, "release", "()V");
   media_codec.release_output_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "releaseOutputBuffer",
       "(IZ)V");
   media_codec.start =
       (*env)->GetMethodID (env, media_codec.klass, "start", "()V");
   media_codec.stop =
       (*env)->GetMethodID (env, media_codec.klass, "stop", "()V");

   if (!media_codec.configure ||
       !media_codec.create_by_codec_name ||
       !media_codec.dequeue_input_buffer ||
       !media_codec.dequeue_output_buffer ||
       !media_codec.flush ||
       !media_codec.get_input_buffers ||
       !media_codec.get_output_buffers ||
       !media_codec.get_output_format ||
       !media_codec.queue_input_buffer ||
       !media_codec.release ||
       !media_codec.release_output_buffer ||
       !media_codec.start || !media_codec.stop) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec methods");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

   /* Android >= 21 */
   media_codec.get_output_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "getOutputBuffer",
       "(I)Ljava/nio/ByteBuffer;");
   if ((*env)->ExceptionCheck (env))
     (*env)->ExceptionClear (env);

   /* Android >= 21 */
   media_codec.get_input_buffer =
       (*env)->GetMethodID (env, media_codec.klass, "getInputBuffer",
       "(I)Ljava/nio/ByteBuffer;");
   if ((*env)->ExceptionCheck (env))
     (*env)->ExceptionClear (env);

   tmp = (*env)->FindClass (env, "android/media/MediaCodec$BufferInfo");
   if (!tmp) {
     ret = FALSE;
     (*env)->ExceptionClear (env);
     GST_ERROR ("Failed to get codec buffer info class");
     goto done;
   }
   media_codec_buffer_info.klass = (*env)->NewGlobalRef (env, tmp);
   if (!media_codec_buffer_info.klass) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec buffer info class global reference");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   (*env)->DeleteLocalRef (env, tmp);
   tmp = NULL;

   media_codec_buffer_info.constructor =
       (*env)->GetMethodID (env, media_codec_buffer_info.klass, "<init>", "()V");
   media_codec_buffer_info.flags =
       (*env)->GetFieldID (env, media_codec_buffer_info.klass, "flags", "I");
   media_codec_buffer_info.offset =
       (*env)->GetFieldID (env, media_codec_buffer_info.klass, "offset", "I");
   media_codec_buffer_info.presentation_time_us =
       (*env)->GetFieldID (env, media_codec_buffer_info.klass,
       "presentationTimeUs", "J");
   media_codec_buffer_info.size =
       (*env)->GetFieldID (env, media_codec_buffer_info.klass, "size", "I");
   if (!media_codec_buffer_info.constructor || !media_codec_buffer_info.flags
       || !media_codec_buffer_info.offset
       || !media_codec_buffer_info.presentation_time_us
       || !media_codec_buffer_info.size) {
     ret = FALSE;
     GST_ERROR ("Failed to get buffer info methods and fields");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

   tmp = (*env)->FindClass (env, "android/media/MediaFormat");
   if (!tmp) {
     ret = FALSE;
     GST_ERROR ("Failed to get format class");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   media_format.klass = (*env)->NewGlobalRef (env, tmp);
   if (!media_format.klass) {
     ret = FALSE;
     GST_ERROR ("Failed to get format class global reference");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }
   (*env)->DeleteLocalRef (env, tmp);
   tmp = NULL;

   media_format.create_audio_format =
       (*env)->GetStaticMethodID (env, media_format.klass, "createAudioFormat",
       "(Ljava/lang/String;II)Landroid/media/MediaFormat;");
   media_format.create_video_format =
       (*env)->GetStaticMethodID (env, media_format.klass, "createVideoFormat",
       "(Ljava/lang/String;II)Landroid/media/MediaFormat;");
   media_format.to_string =
       (*env)->GetMethodID (env, media_format.klass, "toString",
       "()Ljava/lang/String;");
   media_format.contains_key =
       (*env)->GetMethodID (env, media_format.klass, "containsKey",
       "(Ljava/lang/String;)Z");
   media_format.get_float =
       (*env)->GetMethodID (env, media_format.klass, "getFloat",
       "(Ljava/lang/String;)F");
   media_format.set_float =
       (*env)->GetMethodID (env, media_format.klass, "setFloat",
       "(Ljava/lang/String;F)V");
   media_format.get_integer =
       (*env)->GetMethodID (env, media_format.klass, "getInteger",
       "(Ljava/lang/String;)I");
   media_format.set_integer =
       (*env)->GetMethodID (env, media_format.klass, "setInteger",
       "(Ljava/lang/String;I)V");
   media_format.get_string =
       (*env)->GetMethodID (env, media_format.klass, "getString",
       "(Ljava/lang/String;)Ljava/lang/String;");
   media_format.set_string =
       (*env)->GetMethodID (env, media_format.klass, "setString",
       "(Ljava/lang/String;Ljava/lang/String;)V");
   media_format.get_byte_buffer =
       (*env)->GetMethodID (env, media_format.klass, "getByteBuffer",
       "(Ljava/lang/String;)Ljava/nio/ByteBuffer;");
   media_format.set_byte_buffer =
       (*env)->GetMethodID (env, media_format.klass, "setByteBuffer",
       "(Ljava/lang/String;Ljava/nio/ByteBuffer;)V");
   if (!media_format.create_audio_format || !media_format.create_video_format
       || !media_format.contains_key || !media_format.get_float
       || !media_format.set_float || !media_format.get_integer
       || !media_format.set_integer || !media_format.get_string
       || !media_format.set_string || !media_format.get_byte_buffer
       || !media_format.set_byte_buffer) {
     ret = FALSE;
     GST_ERROR ("Failed to get format methods");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

 done:
   if (tmp)
     (*env)->DeleteLocalRef (env, tmp);
   tmp = NULL;

   return ret;
 }

 static gboolean
 scan_codecs (GstPlugin * plugin)
 {
   gboolean ret = TRUE;
   JNIEnv *env;
   jclass codec_list_class = NULL;
   jmethodID get_codec_count_id, get_codec_info_at_id;
   jint codec_count, i;
   const GstStructure *cache_data;

   GST_DEBUG ("Scanning codecs");

   if ((cache_data = gst_plugin_get_cache_data (plugin))) {
     const GValue *arr = gst_structure_get_value (cache_data, "codecs");
     guint i, n;

     GST_DEBUG ("Getting codecs from cache");
     n = gst_value_array_get_size (arr);
     for (i = 0; i < n; i++) {
       const GValue *cv = gst_value_array_get_value (arr, i);
       const GstStructure *cs = gst_value_get_structure (cv);
       const gchar *name;
       gboolean is_encoder;
       const GValue *starr;
       guint j, n2;
       GstAmcCodecInfo *gst_codec_info;

       gst_codec_info = g_new0 (GstAmcCodecInfo, 1);

       name = gst_structure_get_string (cs, "name");
       gst_structure_get_boolean (cs, "is-encoder", &is_encoder);
       gst_codec_info->name = g_strdup (name);
       gst_codec_info->is_encoder = is_encoder;

       starr = gst_structure_get_value (cs, "supported-types");
       n2 = gst_value_array_get_size (starr);

       gst_codec_info->n_supported_types = n2;
       gst_codec_info->supported_types = g_new0 (GstAmcCodecType, n2);

       for (j = 0; j < n2; j++) {
         const GValue *stv = gst_value_array_get_value (starr, j);
         const GstStructure *sts = gst_value_get_structure (stv);
         const gchar *mime;
         const GValue *cfarr;
         const GValue *plarr;
         guint k, n3;
         GstAmcCodecType *gst_codec_type = &gst_codec_info->supported_types[j];

         mime = gst_structure_get_string (sts, "mime");
         gst_codec_type->mime = g_strdup (mime);

         cfarr = gst_structure_get_value (sts, "color-formats");
         n3 = gst_value_array_get_size (cfarr);

         gst_codec_type->n_color_formats = n3;
         gst_codec_type->color_formats = g_new0 (gint, n3);

         for (k = 0; k < n3; k++) {
           const GValue *cfv = gst_value_array_get_value (cfarr, k);
           gint cf = g_value_get_int (cfv);

           gst_codec_type->color_formats[k] = cf;
         }

         plarr = gst_structure_get_value (sts, "profile-levels");
         n3 = gst_value_array_get_size (plarr);

         gst_codec_type->n_profile_levels = n3;
         gst_codec_type->profile_levels =
             g_malloc0 (sizeof (gst_codec_type->profile_levels[0]) * n3);

         for (k = 0; k < n3; k++) {
           const GValue *plv = gst_value_array_get_value (plarr, k);
           const GValue *p, *l;

           p = gst_value_array_get_value (plv, 0);
           l = gst_value_array_get_value (plv, 1);
           gst_codec_type->profile_levels[k].profile = g_value_get_int (p);
           gst_codec_type->profile_levels[k].level = g_value_get_int (l);
         }
       }

       codec_infos = g_list_append (codec_infos, gst_codec_info);
     }

     return TRUE;
   }

   env = gst_amc_jni_get_env ();

   codec_list_class = (*env)->FindClass (env, "android/media/MediaCodecList");
   if (!codec_list_class) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec list class");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

   get_codec_count_id =
       (*env)->GetStaticMethodID (env, codec_list_class, "getCodecCount", "()I");
   get_codec_info_at_id =
       (*env)->GetStaticMethodID (env, codec_list_class, "getCodecInfoAt",
       "(I)Landroid/media/MediaCodecInfo;");
   if (!get_codec_count_id || !get_codec_info_at_id) {
     ret = FALSE;
     GST_ERROR ("Failed to get codec list method IDs");
     if ((*env)->ExceptionCheck (env)) {
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
     }
     goto done;
   }

   codec_count =
       (*env)->CallStaticIntMethod (env, codec_list_class, get_codec_count_id);
   if ((*env)->ExceptionCheck (env)) {
     ret = FALSE;
     GST_ERROR ("Failed to get number of available codecs");
     (*env)->ExceptionDescribe (env);
     (*env)->ExceptionClear (env);
     goto done;
   }

   GST_INFO ("Found %d available codecs", codec_count);

   for (i = 0; i < codec_count; i++) {
     GstAmcCodecInfo *gst_codec_info;
     jobject codec_info = NULL;
     jclass codec_info_class = NULL;
     jmethodID get_capabilities_for_type_id, get_name_id;
     jmethodID get_supported_types_id, is_encoder_id;
     jobject name = NULL;
     const gchar *name_str = NULL;
     jboolean is_encoder;
     jarray supported_types = NULL;
     jsize n_supported_types;
     jsize j;
     gboolean valid_codec = TRUE;

     gst_codec_info = g_new0 (GstAmcCodecInfo, 1);

     codec_info =
         (*env)->CallStaticObjectMethod (env, codec_list_class,
         get_codec_info_at_id, i);
     if ((*env)->ExceptionCheck (env) || !codec_info) {
       GST_ERROR ("Failed to get codec info %d", i);
       if ((*env)->ExceptionCheck (env)) {
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
       }
       valid_codec = FALSE;
       goto next_codec;
     }

     codec_info_class = (*env)->GetObjectClass (env, codec_info);
     if (!codec_list_class) {
       GST_ERROR ("Failed to get codec info class");
       if ((*env)->ExceptionCheck (env)) {
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
       }
       valid_codec = FALSE;
       goto next_codec;
     }

     get_capabilities_for_type_id =
         (*env)->GetMethodID (env, codec_info_class, "getCapabilitiesForType",
         "(Ljava/lang/String;)Landroid/media/MediaCodecInfo$CodecCapabilities;");
     get_name_id =
         (*env)->GetMethodID (env, codec_info_class, "getName",
         "()Ljava/lang/String;");
     get_supported_types_id =
         (*env)->GetMethodID (env, codec_info_class, "getSupportedTypes",
         "()[Ljava/lang/String;");
     is_encoder_id =
         (*env)->GetMethodID (env, codec_info_class, "isEncoder", "()Z");
     if (!get_capabilities_for_type_id || !get_name_id
         || !get_supported_types_id || !is_encoder_id) {
       GST_ERROR ("Failed to get codec info method IDs");
       if ((*env)->ExceptionCheck (env)) {
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
       }
       valid_codec = FALSE;
       goto next_codec;
     }

     name = (*env)->CallObjectMethod (env, codec_info, get_name_id);
     if ((*env)->ExceptionCheck (env)) {
       GST_ERROR ("Failed to get codec name");
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
       valid_codec = FALSE;
       goto next_codec;
     }
     name_str = (*env)->GetStringUTFChars (env, name, NULL);
     if ((*env)->ExceptionCheck (env)) {
       GST_ERROR ("Failed to convert codec name to UTF8");
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
       valid_codec = FALSE;
       goto next_codec;
     }

     GST_INFO ("Checking codec '%s'", name_str);

     /* Compatibility codec names */
     if (strcmp (name_str, "AACEncoder") == 0 ||
         strcmp (name_str, "OMX.google.raw.decoder") == 0) {
       GST_INFO ("Skipping compatibility codec '%s'", name_str);
       valid_codec = FALSE;
       goto next_codec;
     }

     if (g_str_has_suffix (name_str, ".secure")) {
       GST_INFO ("Skipping DRM codec '%s'", name_str);
       valid_codec = FALSE;
       goto next_codec;
     }

     /* FIXME: Non-Google codecs usually just don't work and hang forever
      * or crash when not used from a process that started the Java
      * VM via the non-public AndroidRuntime class. Can we somehow
      * initialize all this?
      */
     if (gst_amc_jni_is_vm_started () &&
         !g_str_has_prefix (name_str, "OMX.google.")) {
       GST_INFO ("Skipping non-Google codec '%s' in standalone mode", name_str);
       valid_codec = FALSE;
       goto next_codec;
     }

     if (g_str_has_prefix (name_str, "OMX.ARICENT.")) {
       GST_INFO ("Skipping possible broken codec '%s'", name_str);
       valid_codec = FALSE;
       goto next_codec;
     }

     /* FIXME:
      *   - Vorbis: Generates clicks for multi-channel streams
      *   - *Law: Generates output with too low frequencies
      */
     if (strcmp (name_str, "OMX.google.vorbis.decoder") == 0 ||
         strcmp (name_str, "OMX.google.g711.alaw.decoder") == 0 ||
         strcmp (name_str, "OMX.google.g711.mlaw.decoder") == 0) {
       GST_INFO ("Skipping known broken codec '%s'", name_str);
       valid_codec = FALSE;
       goto next_codec;
     }
     gst_codec_info->name = g_strdup (name_str);

     is_encoder = (*env)->CallBooleanMethod (env, codec_info, is_encoder_id);
     if ((*env)->ExceptionCheck (env)) {
       GST_ERROR ("Failed to detect if codec is an encoder");
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
       valid_codec = FALSE;
       goto next_codec;
     }
     gst_codec_info->is_encoder = is_encoder;
     gst_codec_info->gl_output_only = FALSE;

     supported_types =
         (*env)->CallObjectMethod (env, codec_info, get_supported_types_id);
     if ((*env)->ExceptionCheck (env)) {
       GST_ERROR ("Failed to get supported types");
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
       valid_codec = FALSE;
       goto next_codec;
     }

     n_supported_types = (*env)->GetArrayLength (env, supported_types);
     if ((*env)->ExceptionCheck (env)) {
       GST_ERROR ("Failed to get supported types array length");
       (*env)->ExceptionDescribe (env);
       (*env)->ExceptionClear (env);
       valid_codec = FALSE;
       goto next_codec;
     }

     GST_INFO ("Codec '%s' has %d supported types", name_str, n_supported_types);

     gst_codec_info->supported_types =
         g_new0 (GstAmcCodecType, n_supported_types);
     gst_codec_info->n_supported_types = n_supported_types;

     if (n_supported_types == 0) {
       valid_codec = FALSE;
       GST_ERROR ("Codec has no supported types");
       goto next_codec;
     }

     for (j = 0; j < n_supported_types; j++) {
       GstAmcCodecType *gst_codec_type;
       jobject supported_type = NULL;
       const gchar *supported_type_str = NULL;
       jobject capabilities = NULL;
       jclass capabilities_class = NULL;
       jfieldID profile_levels_id, color_formats_id;
       jobject profile_levels = NULL;
       jobject color_formats = NULL;
       jint *color_formats_elems = NULL;
       jsize n_elems, k;

       gst_codec_type = &gst_codec_info->supported_types[j];

       supported_type = (*env)->GetObjectArrayElement (env, supported_types, j);
       if ((*env)->ExceptionCheck (env)) {
         GST_ERROR ("Failed to get %d-th supported type", j);
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       supported_type_str =
           (*env)->GetStringUTFChars (env, supported_type, NULL);
       if ((*env)->ExceptionCheck (env) || !supported_type_str) {
         GST_ERROR ("Failed to convert supported type to UTF8");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       GST_INFO ("Supported type '%s'", supported_type_str);
       gst_codec_type->mime = g_strdup (supported_type_str);

       capabilities =
           (*env)->CallObjectMethod (env, codec_info,
           get_capabilities_for_type_id, supported_type);
       if ((*env)->ExceptionCheck (env)) {
         GST_ERROR ("Failed to get capabilities for supported type");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       capabilities_class = (*env)->GetObjectClass (env, capabilities);
       if (!capabilities_class) {
         GST_ERROR ("Failed to get capabilities class");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       color_formats_id =
           (*env)->GetFieldID (env, capabilities_class, "colorFormats", "[I");
       profile_levels_id =
           (*env)->GetFieldID (env, capabilities_class, "profileLevels",
           "[Landroid/media/MediaCodecInfo$CodecProfileLevel;");
       if (!color_formats_id || !profile_levels_id) {
         GST_ERROR ("Failed to get capabilities field IDs");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       if (g_str_has_prefix (gst_codec_type->mime, "video/")) {
         color_formats =
             (*env)->GetObjectField (env, capabilities, color_formats_id);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get color formats");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_supported_type;
         }

         n_elems = (*env)->GetArrayLength (env, color_formats);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get color formats array length");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_supported_type;
         }
         gst_codec_type->n_color_formats = n_elems;
         gst_codec_type->color_formats = g_new0 (gint, n_elems);
         color_formats_elems =
             (*env)->GetIntArrayElements (env, color_formats, NULL);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get color format elements");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_supported_type;
         }

         for (k = 0; k < n_elems; k++) {
           GST_INFO ("Color format %d: 0x%x", k, color_formats_elems[k]);
           gst_codec_type->color_formats[k] = color_formats_elems[k];
         }

         if (!n_elems) {
           GST_ERROR ("No supported color formats for video codec");
           valid_codec = FALSE;
           goto next_supported_type;
         }

         if (!accepted_color_formats (gst_codec_type, is_encoder)) {
           if (!ignore_unknown_color_formats) {
             gst_codec_info->gl_output_only = TRUE;
             GST_WARNING
                 ("%s %s has unknown color formats, only direct rendering will be supported",
                 gst_codec_type->mime, is_encoder ? "encoder" : "decoder");
           }
         }
       }

       profile_levels =
           (*env)->GetObjectField (env, capabilities, profile_levels_id);
       if ((*env)->ExceptionCheck (env)) {
         GST_ERROR ("Failed to get profile/levels");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }

       n_elems = (*env)->GetArrayLength (env, profile_levels);
       if ((*env)->ExceptionCheck (env)) {
         GST_ERROR ("Failed to get profile/levels array length");
         (*env)->ExceptionDescribe (env);
         (*env)->ExceptionClear (env);
         valid_codec = FALSE;
         goto next_supported_type;
       }
       gst_codec_type->n_profile_levels = n_elems;
       gst_codec_type->profile_levels =
           g_malloc0 (sizeof (gst_codec_type->profile_levels[0]) * n_elems);
       for (k = 0; k < n_elems; k++) {
         jobject profile_level = NULL;
         jclass profile_level_class = NULL;
         jfieldID level_id, profile_id;
         jint level, profile;

         profile_level = (*env)->GetObjectArrayElement (env, profile_levels, k);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get %d-th profile/level", k);
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_profile_level;
         }

         profile_level_class = (*env)->GetObjectClass (env, profile_level);
         if (!profile_level_class) {
           GST_ERROR ("Failed to get profile/level class");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_profile_level;
         }

         level_id = (*env)->GetFieldID (env, profile_level_class, "level", "I");
         profile_id =
             (*env)->GetFieldID (env, profile_level_class, "profile", "I");
         if (!level_id || !profile_id) {
           GST_ERROR ("Failed to get profile/level field IDs");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_profile_level;
         }

         level = (*env)->GetIntField (env, profile_level, level_id);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get level");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_profile_level;
         }
         GST_INFO ("Level %d: 0x%08x", k, level);
         gst_codec_type->profile_levels[k].level = level;

         profile = (*env)->GetIntField (env, profile_level, profile_id);
         if ((*env)->ExceptionCheck (env)) {
           GST_ERROR ("Failed to get profile");
           (*env)->ExceptionDescribe (env);
           (*env)->ExceptionClear (env);
           valid_codec = FALSE;
           goto next_profile_level;
         }
         GST_INFO ("Profile %d: 0x%08x", k, profile);
         gst_codec_type->profile_levels[k].profile = profile;

       next_profile_level:
         if (profile_level)
           (*env)->DeleteLocalRef (env, profile_level);
         profile_level = NULL;
         if (profile_level_class)
           (*env)->DeleteLocalRef (env, profile_level_class);
         profile_level_class = NULL;
         if (!valid_codec)
           break;
       }

     next_supported_type:
       if (color_formats_elems)
         (*env)->ReleaseIntArrayElements (env, color_formats,
             color_formats_elems, JNI_ABORT);
       color_formats_elems = NULL;
       if (color_formats)
         (*env)->DeleteLocalRef (env, color_formats);
       color_formats = NULL;
       if (profile_levels)
         (*env)->DeleteLocalRef (env, profile_levels);
       color_formats = NULL;
       if (capabilities)
         (*env)->DeleteLocalRef (env, capabilities);
       capabilities = NULL;
       if (capabilities_class)
         (*env)->DeleteLocalRef (env, capabilities_class);
       capabilities_class = NULL;
       if (supported_type_str)
         (*env)->ReleaseStringUTFChars (env, supported_type, supported_type_str);
       supported_type_str = NULL;
       if (supported_type)
         (*env)->DeleteLocalRef (env, supported_type);
       supported_type = NULL;
       if (!valid_codec)
         break;
     }

     /* We need at least a valid supported type */
     if (valid_codec) {
       GST_LOG ("Successfully scanned codec '%s'", name_str);
       codec_infos = g_list_append (codec_infos, gst_codec_info);
       gst_codec_info = NULL;
     }

     /* Clean up of all local references we got */
   next_codec:
     if (name_str)
       (*env)->ReleaseStringUTFChars (env, name, name_str);
     name_str = NULL;
     if (name)
       (*env)->DeleteLocalRef (env, name);
     name = NULL;
     if (supported_types)
       (*env)->DeleteLocalRef (env, supported_types);
     supported_types = NULL;
     if (codec_info)
       (*env)->DeleteLocalRef (env, codec_info);
     codec_info = NULL;
     if (codec_info_class)
       (*env)->DeleteLocalRef (env, codec_info_class);
     codec_info_class = NULL;
     if (gst_codec_info) {
       gint j;

       for (j = 0; j < gst_codec_info->n_supported_types; j++) {
         GstAmcCodecType *gst_codec_type = &gst_codec_info->supported_types[j];

         g_free (gst_codec_type->mime);
         g_free (gst_codec_type->color_formats);
         g_free (gst_codec_type->profile_levels);
       }
       g_free (gst_codec_info->supported_types);
       g_free (gst_codec_info->name);
       g_free (gst_codec_info);
     }
     gst_codec_info = NULL;
     valid_codec = TRUE;
   }

   ret = codec_infos != NULL;

   /* If successful we store a cache of the codec information in
    * the registry. Otherwise we would always load all codecs during
    * plugin initialization which can take quite some time (because
    * of hardware) and also loads lots of shared libraries (which
    * number is limited by 64 in Android).
    */
   if (ret) {
     GstStructure *new_cache_data = gst_structure_new_empty ("gst-amc-cache");
     GList *l;
     GValue arr = { 0, };

     g_value_init (&arr, GST_TYPE_ARRAY);

     for (l = codec_infos; l; l = l->next) {
       GstAmcCodecInfo *gst_codec_info = l->data;
       GValue cv = { 0, };
       GstStructure *cs = gst_structure_new_empty ("gst-amc-codec");
       GValue starr = { 0, };
       gint i;

       gst_structure_set (cs, "name", G_TYPE_STRING, gst_codec_info->name,
           "is-encoder", G_TYPE_BOOLEAN, gst_codec_info->is_encoder, NULL);

       g_value_init (&starr, GST_TYPE_ARRAY);

       for (i = 0; i < gst_codec_info->n_supported_types; i++) {
         GstAmcCodecType *gst_codec_type = &gst_codec_info->supported_types[i];
         GstStructure *sts = gst_structure_new_empty ("gst-amc-supported-type");
         GValue stv = { 0, };
         GValue tmparr = { 0, };
         gint j;

         gst_structure_set (sts, "mime", G_TYPE_STRING, gst_codec_type->mime,
             NULL);

         g_value_init (&tmparr, GST_TYPE_ARRAY);
         for (j = 0; j < gst_codec_type->n_color_formats; j++) {
           GValue tmp = { 0, };

           g_value_init (&tmp, G_TYPE_INT);
           g_value_set_int (&tmp, gst_codec_type->color_formats[j]);
           gst_value_array_append_value (&tmparr, &tmp);
           g_value_unset (&tmp);
         }
         gst_structure_set_value (sts, "color-formats", &tmparr);
         g_value_unset (&tmparr);

         g_value_init (&tmparr, GST_TYPE_ARRAY);
         for (j = 0; j < gst_codec_type->n_profile_levels; j++) {
           GValue tmparr2 = { 0, };
           GValue tmp = { 0, };

           g_value_init (&tmparr2, GST_TYPE_ARRAY);
           g_value_init (&tmp, G_TYPE_INT);
           g_value_set_int (&tmp, gst_codec_type->profile_levels[j].profile);
           gst_value_array_append_value (&tmparr2, &tmp);
           g_value_set_int (&tmp, gst_codec_type->profile_levels[j].level);
           gst_value_array_append_value (&tmparr2, &tmp);
           gst_value_array_append_value (&tmparr, &tmparr2);
           g_value_unset (&tmp);
           g_value_unset (&tmparr2);
         }
         gst_structure_set_value (sts, "profile-levels", &tmparr);

         g_value_init (&stv, GST_TYPE_STRUCTURE);
         gst_value_set_structure (&stv, sts);
         gst_value_array_append_value (&starr, &stv);
         g_value_unset (&tmparr);
         gst_structure_free (sts);
       }

       gst_structure_set_value (cs, "supported-types", &starr);
       g_value_unset (&starr);

       g_value_init (&cv, GST_TYPE_STRUCTURE);
       gst_value_set_structure (&cv, cs);
       gst_value_array_append_value (&arr, &cv);
       g_value_unset (&cv);
       gst_structure_free (cs);
     }

     gst_structure_set_value (new_cache_data, "codecs", &arr);
     g_value_unset (&arr);

     gst_plugin_set_cache_data (plugin, new_cache_data);
   }

 done:
   if (codec_list_class)
     (*env)->DeleteLocalRef (env, codec_list_class);

   return ret;
 }

 static const struct
 {
   gint color_format;
   GstVideoFormat video_format;
 } color_format_mapping_table[] = {
   {
   COLOR_FormatYUV420Planar, GST_VIDEO_FORMAT_I420}, {
   COLOR_FormatYUV420Flexible, GST_VIDEO_FORMAT_I420}, {
   COLOR_FormatYUV420SemiPlanar, GST_VIDEO_FORMAT_NV12}, {
   COLOR_TI_FormatYUV420PackedSemiPlanar, GST_VIDEO_FORMAT_NV12}, {
   COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced, GST_VIDEO_FORMAT_NV12}, {
   COLOR_INTEL_FormatYUV420PackedSemiPlanar, GST_VIDEO_FORMAT_NV12}, {
   COLOR_INTEL_FormatYUV420PackedSemiPlanar_Tiled, GST_VIDEO_FORMAT_NV12}, {
   COLOR_QCOM_FormatYUV420SemiPlanar, GST_VIDEO_FORMAT_NV12}, {
   COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka, GST_VIDEO_FORMAT_NV12}, {
   COLOR_QCOM_FormatYVU420SemiPlanar32m, GST_VIDEO_FORMAT_NV12}, {
   COLOR_QCOM_FormatYVU420SemiPlanar32mMultiView, GST_VIDEO_FORMAT_NV12}, {
   COLOR_OMX_SEC_FormatNV12Tiled, GST_VIDEO_FORMAT_NV12}, {
   COLOR_FormatYCbYCr, GST_VIDEO_FORMAT_YUY2}, {
   COLOR_FormatYV12, GST_VIDEO_FORMAT_YV12}
 };

 static gboolean
 accepted_color_formats (GstAmcCodecType * type, gboolean is_encoder)
 {
   gint i, j;
   gint accepted = 0, all = type->n_color_formats;

   for (i = 0; i < type->n_color_formats; i++) {
     gboolean found = FALSE;
     /* We ignore this one */
     if (type->color_formats[i] == COLOR_FormatAndroidOpaque) {
       all--;
       continue;
     }

     for (j = 0; j < G_N_ELEMENTS (color_format_mapping_table); j++) {
       if (color_format_mapping_table[j].color_format == type->color_formats[i]) {
         found = TRUE;
         accepted++;
         break;
       }
     }

     if (!found) {
       GST_ERROR ("Unknown color format 0x%x, ignoring", type->color_formats[i]);
     }
   }

   if (is_encoder)
     return accepted > 0;
   else
     return accepted == all && all > 0;
 }

 GstVideoFormat
 gst_amc_color_format_to_video_format (const GstAmcCodecInfo * codec_info,
     const gchar * mime, gint color_format)
 {
   gint i;

   if (color_format == COLOR_FormatYCbYCr) {
     if (strcmp (codec_info->name, "OMX.k3.video.decoder.avc") == 0) {
       GST_INFO
           ("OMX.k3.video.decoder.avc: COLOR_FormatYCbYCr is actually GST_VIDEO_FORMAT_NV12.");
       return GST_VIDEO_FORMAT_NV12;
     }

     /* FIXME COLOR_FormatYCbYCr doesn't work properly for OMX.k3.video.encoder.avc temporarily. */
     if (strcmp (codec_info->name, "OMX.k3.video.encoder.avc") == 0) {
       GST_INFO
           ("OMX.k3.video.encoder.avc: COLOR_FormatYCbYCr is not supported yet.");
       return GST_VIDEO_FORMAT_UNKNOWN;
     }

     /* FIXME COLOR_FormatYCbYCr is not supported in gst_amc_color_format_info_set yet, mask it. */
     return GST_VIDEO_FORMAT_UNKNOWN;
   }

   if (color_format == COLOR_FormatYUV420SemiPlanar) {
     if (strcmp (codec_info->name, "OMX.k3.video.encoder.avc") == 0) {
       GST_INFO
           ("OMX.k3.video.encoder.avc: COLOR_FormatYUV420SemiPlanar is actually GST_VIDEO_FORMAT_NV21.");
       return GST_VIDEO_FORMAT_NV21;
     }
   }

   for (i = 0; i < G_N_ELEMENTS (color_format_mapping_table); i++) {
     if (color_format_mapping_table[i].color_format == color_format)
       return color_format_mapping_table[i].video_format;
   }

   return GST_VIDEO_FORMAT_UNKNOWN;
 }

 gint
 gst_amc_video_format_to_color_format (const GstAmcCodecInfo * codec_info,
     const gchar * mime, GstVideoFormat video_format)
 {
   const GstAmcCodecType *codec_type = NULL;
   gint i, j;

   for (i = 0; i < codec_info->n_supported_types; i++) {
     if (strcmp (codec_info->supported_types[i].mime, mime) == 0) {
       codec_type = &codec_info->supported_types[i];
       break;
     }
   }

   if (!codec_type)
     return -1;

   if (video_format == GST_VIDEO_FORMAT_NV12) {
     if (strcmp (codec_info->name, "OMX.k3.video.decoder.avc") == 0) {
       GST_INFO
           ("OMX.k3.video.decoder.avc: GST_VIDEO_FORMAT_NV12 is reported as COLOR_FormatYCbYCr.");

       return COLOR_FormatYCbYCr;
     }
   }

   if (video_format == GST_VIDEO_FORMAT_NV21) {
     if (strcmp (codec_info->name, "OMX.k3.video.encoder.avc") == 0) {
       GST_INFO
           ("OMX.k3.video.encoder.avc: GST_VIDEO_FORMAT_NV21 is reported as COLOR_FormatYUV420SemiPlanar.");

       return COLOR_FormatYUV420SemiPlanar;
     }
   }

   for (i = 0; i < G_N_ELEMENTS (color_format_mapping_table); i++) {
     if (color_format_mapping_table[i].video_format == video_format) {
       gint color_format = color_format_mapping_table[i].color_format;

       for (j = 0; j < codec_type->n_color_formats; j++)
         if (color_format == codec_type->color_formats[j])
           return color_format;
     }
   }

   return -1;
 }

 /*
  * The format is called QOMX_COLOR_FormatYUV420PackedSemiPlanar64x32Tile2m8ka.
  * Which is actually NV12 (interleaved U&V).
  */
 #define TILE_WIDTH 64
 #define TILE_HEIGHT 32
 #define TILE_SIZE (TILE_WIDTH * TILE_HEIGHT)
 #define TILE_GROUP_SIZE (4 * TILE_SIZE)

 /* get frame tile coordinate. XXX: nothing to be understood here, don't try. */
 static size_t
 tile_pos (size_t x, size_t y, size_t w, size_t h)
 {
   size_t flim = x + (y & ~1) * w;

   if (y & 1) {
     flim += (x & ~3) + 2;
   } else if ((h & 1) == 0 || y != (h - 1)) {
     flim += (x + 2) & ~3;
   }

   return flim;
 }

 gboolean
 gst_amc_color_format_info_set (GstAmcColorFormatInfo * color_format_info,
     const GstAmcCodecInfo * codec_info, const gchar * mime, gint color_format,
     gint width, gint height, gint stride, gint slice_height, gint crop_left,
     gint crop_right, gint crop_top, gint crop_bottom)
 {
   gint frame_size = 0;

   if (color_format == COLOR_FormatYCbYCr) {
     if (strcmp (codec_info->name, "OMX.k3.video.decoder.avc") == 0)
       color_format = COLOR_FormatYUV420SemiPlanar;
   }

   /* Samsung Galaxy S3 seems to report wrong strides.
    * I.e. BigBuckBunny 854x480 H264 reports a stride of 864 when it is
    * actually 854, so we use width instead of stride here.
    * This is obviously bound to break in the future. */
   if (g_str_has_prefix (codec_info->name, "OMX.SEC.")) {
     stride = width;
   }

   if (strcmp (codec_info->name, "OMX.k3.video.decoder.avc") == 0) {
     stride = width;
     slice_height = height;
   }

   if (slice_height == 0) {
     /* NVidia Tegra 3 on Nexus 7 does not set this */
     if (g_str_has_prefix (codec_info->name, "OMX.Nvidia."))
       slice_height = GST_ROUND_UP_16 (height);
   }

   if (width == 0 || height == 0) {
     GST_ERROR ("Width or height is 0");
     return FALSE;
   }

   switch (color_format) {
     case COLOR_FormatYUV420Planar:
     case COLOR_FormatYUV420Flexible:{
     case COLOR_FormatYV12:
       if (stride == 0 || slice_height == 0) {
         GST_ERROR ("Stride or slice height is 0");
         return FALSE;
       }

       frame_size =
           stride * slice_height + 2 * ((stride + 1) / 2) * ((slice_height +
               1) / 2);
       break;
     }
     case COLOR_INTEL_FormatYUV420PackedSemiPlanar:
     case COLOR_INTEL_FormatYUV420PackedSemiPlanar_Tiled:
       if (stride == 0) {
         GST_ERROR ("Stride is 0");
         return FALSE;
       }
       if (slice_height <= 0)
         slice_height = height;

       frame_size =
           stride * (slice_height - crop_top / 2) +
           (GST_ROUND_UP_2 (stride) * ((slice_height + 1) / 2));
       break;

     case COLOR_TI_FormatYUV420PackedSemiPlanar:
     case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:{
       if (stride == 0 || slice_height == 0) {
         GST_ERROR ("Stride or slice height is 0");
         return FALSE;
       }

       frame_size =
           stride * (slice_height - crop_top / 2) +
           (GST_ROUND_UP_2 (stride) * ((slice_height + 1) / 2));
       break;
     }
     case COLOR_QCOM_FormatYUV420SemiPlanar:
     case COLOR_QCOM_FormatYVU420SemiPlanar32m:
     case COLOR_QCOM_FormatYVU420SemiPlanar32mMultiView:
     case COLOR_FormatYUV420SemiPlanar:{
       if (stride == 0 || slice_height == 0) {
         GST_ERROR ("Stride or slice height is 0");
         return FALSE;
       }

       frame_size = stride * slice_height + stride * ((slice_height + 1) / 2);
       break;
     }
     case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka:{
       const size_t tile_w = (width - 1) / TILE_WIDTH + 1;
       const size_t tile_w_align = (tile_w + 1) & ~1;
       const size_t tile_h_luma = (height - 1) / TILE_HEIGHT + 1;
       frame_size =
           tile_pos (tile_w, tile_h_luma, tile_w_align, tile_h_luma) * TILE_SIZE;
       break;
     }
     default:
       GST_ERROR ("Unsupported color format %d", color_format);
       return FALSE;
       break;
   }

   color_format_info->color_format = color_format;
   color_format_info->width = width;
   color_format_info->height = height;
   color_format_info->stride = stride;
   color_format_info->slice_height = slice_height;
   color_format_info->crop_left = crop_left;
   color_format_info->crop_right = crop_right;
   color_format_info->crop_top = crop_top;
   color_format_info->crop_bottom = crop_bottom;
   color_format_info->frame_size = frame_size;

   return TRUE;
 }

 /* The weird handling of cropping, alignment and everything is taken from
  * platform/frameworks/media/libstagefright/colorconversion/ColorConversion.cpp
  */
 gboolean
 gst_amc_color_format_copy (GstAmcColorFormatInfo * cinfo,
     GstAmcBuffer * cbuffer, const GstAmcBufferInfo * cbuffer_info,
     GstVideoInfo * vinfo, GstBuffer * vbuffer,
     GstAmcColorFormatCopyDirection direction)
 {
   gboolean ret = FALSE;
   guint8 *cptr = NULL, *vptr = NULL;
   guint8 **src, **dest;

   if (direction == COLOR_FORMAT_COPY_OUT) {
     src = &cptr;
     dest = &vptr;
   } else {
     src = &vptr;
     dest = &cptr;
   }

   /* Same video format */
   if (cbuffer_info->size == gst_buffer_get_size (vbuffer)) {
     GstMapInfo minfo;

     GST_DEBUG ("Buffer sizes equal, doing fast copy");
     gst_buffer_map (vbuffer, &minfo, GST_MAP_WRITE);

     cptr = cbuffer->data + cbuffer_info->offset;
     vptr = minfo.data;
     orc_memcpy (*dest, *src, cbuffer_info->size);

     gst_buffer_unmap (vbuffer, &minfo);
     ret = TRUE;
     goto done;
   }

   GST_DEBUG ("Sizes not equal (%d vs %" G_GSIZE_FORMAT
       "), doing slow line-by-line copying", cbuffer_info->size,
       gst_buffer_get_size (vbuffer));

   /* Different video format, try to convert */
   switch (cinfo->color_format) {
     case COLOR_FormatYUV420Planar:{
       GstVideoFrame vframe;
       gint i, j, height;
       gint stride, slice_height;
       gint c_stride, v_stride;
       gint row_length;

       stride = cinfo->stride;
       slice_height = cinfo->slice_height;
       g_assert (stride > 0 && slice_height > 0);

       gst_video_frame_map (&vframe, vinfo, vbuffer, GST_MAP_WRITE);

       for (i = 0; i < 3; i++) {
         if (i == 0) {
           c_stride = stride;
           v_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
         } else {
           c_stride = (stride + 1) / 2;
           v_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
         }

         cptr = cbuffer->data + cbuffer_info->offset;

         if (i == 0) {
           cptr += cinfo->crop_top * stride;
           cptr += cinfo->crop_left;
           row_length = cinfo->width;
         } else if (i > 0) {
           /* skip the Y plane */
           cptr += slice_height * stride;

           /* crop_top/crop_left divided by two
            * because one byte of the U/V planes
            * corresponds to two pixels horizontally/vertically */
           cptr += cinfo->crop_top / 2 * c_stride;
           cptr += cinfo->crop_left / 2;
           row_length = (cinfo->width + 1) / 2;
         }
         if (i == 2) {
           /* skip the U plane */
           cptr += ((slice_height + 1) / 2) * ((stride + 1) / 2);
         }

         vptr = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
         height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);

         for (j = 0; j < height; j++) {
           orc_memcpy (*dest, *src, row_length);
           cptr += c_stride;
           vptr += v_stride;
         }
       }
       gst_video_frame_unmap (&vframe);
       ret = TRUE;
       break;
     }
     case COLOR_TI_FormatYUV420PackedSemiPlanar:
     case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:{
       gint i, j, height;
       gint c_stride, v_stride;
       gint row_length;
       GstVideoFrame vframe;

       /* This should always be set */
       g_assert (cinfo->stride > 0 && cinfo->slice_height > 0);

       /* FIXME: This does not work for odd widths or heights
        * but might as well be a bug in the codec */
       gst_video_frame_map (&vframe, vinfo, vbuffer, GST_MAP_WRITE);
       for (i = 0; i < 2; i++) {
         if (i == 0) {
           c_stride = cinfo->stride;
           v_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
         } else {
           c_stride = GST_ROUND_UP_2 (cinfo->stride);
           v_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);
         }

         cptr = cbuffer->data + cbuffer_info->offset;
         if (i == 0) {
           row_length = cinfo->width;
         } else if (i == 1) {
           cptr += (cinfo->slice_height - cinfo->crop_top / 2) * cinfo->stride;
           row_length = GST_ROUND_UP_2 (cinfo->width);
         }

         vptr = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
         height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);

         for (j = 0; j < height; j++) {
           orc_memcpy (*dest, *src, row_length);
           cptr += c_stride;
           vptr += v_stride;
         }
       }
       gst_video_frame_unmap (&vframe);
       ret = TRUE;
       break;
     }
     case COLOR_QCOM_FormatYUV420SemiPlanar:
     case COLOR_QCOM_FormatYVU420SemiPlanar32m:
     case COLOR_QCOM_FormatYVU420SemiPlanar32mMultiView:
     case COLOR_FormatYUV420SemiPlanar:{
       gint i, j, height;
       gint c_stride, v_stride;
       gint row_length;
       GstVideoFrame vframe;

       /* This should always be set */
       g_assert (cinfo->stride > 0 && cinfo->slice_height > 0);

       gst_video_frame_map (&vframe, vinfo, vbuffer, GST_MAP_WRITE);

       for (i = 0; i < 2; i++) {
         c_stride = cinfo->stride;
         v_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, i);

         cptr = cbuffer->data + cbuffer_info->offset;
         if (i == 0) {
           cptr += cinfo->crop_top * cinfo->stride;
           cptr += cinfo->crop_left;
           row_length = cinfo->width;
         } else if (i == 1) {
           cptr += cinfo->slice_height * cinfo->stride;
           cptr += cinfo->crop_top * cinfo->stride;
           cptr += cinfo->crop_left;
           row_length = cinfo->width;
         }

         vptr = GST_VIDEO_FRAME_COMP_DATA (&vframe, i);
         height = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i);

         for (j = 0; j < height; j++) {
           orc_memcpy (*dest, *src, row_length);
           cptr += c_stride;
           vptr += v_stride;
         }
       }
       gst_video_frame_unmap (&vframe);
       ret = TRUE;
       break;
     }
       /* FIXME: This should be in libgstvideo as MT12 or similar, see v4l2 */
     case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka:{
       GstVideoFrame vframe;
       gint width = cinfo->width;
       gint height = cinfo->height;
       gint v_luma_stride, v_chroma_stride;
       guint8 *cdata = cbuffer->data + cbuffer_info->offset;
       guint8 *v_luma, *v_chroma;
       gint y;
       const size_t tile_w = (width - 1) / TILE_WIDTH + 1;
       const size_t tile_w_align = (tile_w + 1) & ~1;
       const size_t tile_h_luma = (height - 1) / TILE_HEIGHT + 1;
       const size_t tile_h_chroma = (height / 2 - 1) / TILE_HEIGHT + 1;
       size_t luma_size = tile_w_align * tile_h_luma * TILE_SIZE;

       gst_video_frame_map (&vframe, vinfo, vbuffer, GST_MAP_WRITE);
       v_luma = GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0);
       v_chroma = GST_VIDEO_FRAME_PLANE_DATA (&vframe, 1);
       v_luma_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, 0);
       v_chroma_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, 1);

       if ((luma_size % TILE_GROUP_SIZE) != 0)
         luma_size = (((luma_size - 1) / TILE_GROUP_SIZE) + 1) * TILE_GROUP_SIZE;

       for (y = 0; y < tile_h_luma; y++) {
         size_t row_width = width;
         gint x;

         for (x = 0; x < tile_w; x++) {
           size_t tile_width = row_width;
           size_t tile_height = height;
           gint luma_idx;
           gint chroma_idx;
           /* luma source pointer for this tile */
           uint8_t *c_luma =
               cdata + tile_pos (x, y, tile_w_align, tile_h_luma) * TILE_SIZE;

           /* chroma source pointer for this tile */
           uint8_t *c_chroma =
               cdata + luma_size + tile_pos (x, y / 2, tile_w_align,
               tile_h_chroma) * TILE_SIZE;
           if (y & 1)
             c_chroma += TILE_SIZE / 2;

           /* account for right columns */
           if (tile_width > TILE_WIDTH)
             tile_width = TILE_WIDTH;

           /* account for bottom rows */
           if (tile_height > TILE_HEIGHT)
             tile_height = TILE_HEIGHT;

           /* vptr luma memory index for this tile */
           luma_idx = y * TILE_HEIGHT * v_luma_stride + x * TILE_WIDTH;

           /* vptr chroma memory index for this tile */
           /* XXX: remove divisions */
           chroma_idx = y * TILE_HEIGHT / 2 * v_chroma_stride + x * TILE_WIDTH;

           tile_height /= 2;     // we copy 2 luma lines at once
           while (tile_height--) {
             vptr = v_luma + luma_idx;
             cptr = c_luma;
             memcpy (*dest, *src, tile_width);
             c_luma += TILE_WIDTH;
             luma_idx += v_luma_stride;

             vptr = v_luma + luma_idx;
             cptr = c_luma;
             memcpy (*dest, *src, tile_width);
             c_luma += TILE_WIDTH;
             luma_idx += v_luma_stride;

             vptr = v_chroma + chroma_idx;
             cptr = c_chroma;
             memcpy (*dest, *src, tile_width);
             c_chroma += TILE_WIDTH;
             chroma_idx += v_chroma_stride;
           }
           row_width -= TILE_WIDTH;
         }
         height -= TILE_HEIGHT;
       }
       gst_video_frame_unmap (&vframe);
       ret = TRUE;
       break;

     }
     default:
       GST_ERROR ("Unsupported color format %d", cinfo->color_format);
       goto done;
       break;
   }

 done:
   return ret;
 }

 static const struct
 {
   gint id;
   const gchar *str;
 } hevc_profile_mapping_table[] = {
   {
   HEVCProfileMain, "main"}, {
   HEVCProfileMain10, "main-10"}
 };

 const gchar *
 gst_amc_hevc_profile_to_string (gint profile)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (hevc_profile_mapping_table); i++) {
     if (hevc_profile_mapping_table[i].id == profile) {
       return hevc_profile_mapping_table[i].str;
     }
   }

   return NULL;
 }

 gint
 gst_amc_hevc_profile_from_string (const gchar * profile)
 {
   gint i;

   g_return_val_if_fail (profile != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (hevc_profile_mapping_table); i++) {
     if (strcmp (hevc_profile_mapping_table[i].str, profile) == 0)
       return hevc_profile_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *tier_str;
   const gchar *level_str;
 } hevc_tier_level_mapping_table[] = {
   {
   HEVCMainTierLevel1, "main", "1"}, {
   HEVCMainTierLevel2, "main", "2"}, {
   HEVCMainTierLevel21, "main", "2.1"}, {
   HEVCMainTierLevel3, "main", "3"}, {
   HEVCMainTierLevel31, "main", "3.1"}, {
   HEVCMainTierLevel4, "main", "4"}, {
   HEVCMainTierLevel41, "main", "4.1"}, {
   HEVCMainTierLevel5, "main", "5"}, {
   HEVCMainTierLevel51, "main", "5.1"}, {
   HEVCMainTierLevel52, "main", "5.2"}, {
   HEVCMainTierLevel6, "main", "6"}, {
   HEVCMainTierLevel61, "main", "6.1"}, {
   HEVCMainTierLevel62, "main", "6.2"}, {
   HEVCHighTierLevel1, "high", "1"}, {
   HEVCHighTierLevel2, "high", "2"}, {
   HEVCHighTierLevel21, "high", "2.1"}, {
   HEVCHighTierLevel3, "high", "3"}, {
   HEVCHighTierLevel31, "high", "3.1"}, {
   HEVCHighTierLevel4, "high", "4"}, {
   HEVCHighTierLevel41, "high", "4.1"}, {
   HEVCHighTierLevel5, "high", "5"}, {
   HEVCHighTierLevel51, "high", "5.1"}, {
   HEVCHighTierLevel52, "high", "5.2"}, {
   HEVCHighTierLevel6, "high", "6"}, {
   HEVCHighTierLevel61, "high", "6.1"}
 };

 const gchar *
 gst_amc_hevc_tier_level_to_string (gint tier_level, const gchar ** tier)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (hevc_tier_level_mapping_table); i++) {
     if (hevc_tier_level_mapping_table[i].id == tier_level)
       *tier = hevc_tier_level_mapping_table[i].tier_str;
     return hevc_tier_level_mapping_table[i].level_str;
   }

   return NULL;
 }

 gint
 gst_amc_hevc_tier_level_from_string (const gchar * tier, const gchar * level)
 {
   gint i;

   g_return_val_if_fail (level != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (hevc_tier_level_mapping_table); i++) {
     if (strcmp (hevc_tier_level_mapping_table[i].tier_str, tier) == 0 &&
         strcmp (hevc_tier_level_mapping_table[i].level_str, level) == 0)
       return hevc_tier_level_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *str;
   const gchar *alt_str;
 } avc_profile_mapping_table[] = {
   {
   AVCProfileBaseline, "baseline", "constrained-baseline"}, {
   AVCProfileMain, "main", NULL}, {
   AVCProfileExtended, "extended", NULL}, {
   AVCProfileHigh, "high"}, {
   AVCProfileHigh10, "high-10", "high-10-intra"}, {
   AVCProfileHigh422, "high-4:2:2", "high-4:2:2-intra"}, {
   AVCProfileHigh444, "high-4:4:4", "high-4:4:4-intra"}
 };

 const gchar *
 gst_amc_avc_profile_to_string (gint profile, const gchar ** alternative)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (avc_profile_mapping_table); i++) {
     if (avc_profile_mapping_table[i].id == profile) {
       *alternative = avc_profile_mapping_table[i].alt_str;
       return avc_profile_mapping_table[i].str;
     }
   }

   return NULL;
 }

 gint
 gst_amc_avc_profile_from_string (const gchar * profile)
 {
   gint i;

   g_return_val_if_fail (profile != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (avc_profile_mapping_table); i++) {
     if (strcmp (avc_profile_mapping_table[i].str, profile) == 0 ||
         (avc_profile_mapping_table[i].alt_str &&
             strcmp (avc_profile_mapping_table[i].alt_str, profile) == 0))
       return avc_profile_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *str;
 } avc_level_mapping_table[] = {
   {
   AVCLevel1, "1"}, {
   AVCLevel1b, "1b"}, {
   AVCLevel11, "1.1"}, {
   AVCLevel12, "1.2"}, {
   AVCLevel13, "1.3"}, {
   AVCLevel2, "2"}, {
   AVCLevel21, "2.1"}, {
   AVCLevel22, "2.2"}, {
   AVCLevel3, "3"}, {
   AVCLevel31, "3.1"}, {
   AVCLevel32, "3.2"}, {
   AVCLevel4, "4"}, {
   AVCLevel41, "4.1"}, {
   AVCLevel42, "4.2"}, {
   AVCLevel5, "5"}, {
   AVCLevel51, "5.1"}
 };

 const gchar *
 gst_amc_avc_level_to_string (gint level)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (avc_level_mapping_table); i++) {
     if (avc_level_mapping_table[i].id == level)
       return avc_level_mapping_table[i].str;
   }

   return NULL;
 }

 gint
 gst_amc_avc_level_from_string (const gchar * level)
 {
   gint i;

   g_return_val_if_fail (level != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (avc_level_mapping_table); i++) {
     if (strcmp (avc_level_mapping_table[i].str, level) == 0)
       return avc_level_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   gint gst_id;
 } h263_profile_mapping_table[] = {
   {
   H263ProfileBaseline, 0}, {
   H263ProfileH320Coding, 1}, {
   H263ProfileBackwardCompatible, 2}, {
   H263ProfileISWV2, 3}, {
   H263ProfileISWV3, 4}, {
   H263ProfileHighCompression, 5}, {
   H263ProfileInternet, 6}, {
   H263ProfileInterlace, 7}, {
   H263ProfileHighLatency, 8}
 };

 gint
 gst_amc_h263_profile_to_gst_id (gint profile)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (h263_profile_mapping_table); i++) {
     if (h263_profile_mapping_table[i].id == profile)
       return h263_profile_mapping_table[i].gst_id;
   }

   return -1;
 }

 gint
 gst_amc_h263_profile_from_gst_id (gint profile)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (h263_profile_mapping_table); i++) {
     if (h263_profile_mapping_table[i].gst_id == profile)
       return h263_profile_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   gint gst_id;
 } h263_level_mapping_table[] = {
   {
   H263Level10, 10}, {
   H263Level20, 20}, {
   H263Level30, 30}, {
   H263Level40, 40}, {
   H263Level50, 50}, {
   H263Level60, 60}, {
   H263Level70, 70}
 };

 gint
 gst_amc_h263_level_to_gst_id (gint level)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (h263_level_mapping_table); i++) {
     if (h263_level_mapping_table[i].id == level)
       return h263_level_mapping_table[i].gst_id;
   }

   return -1;
 }

 gint
 gst_amc_h263_level_from_gst_id (gint level)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (h263_level_mapping_table); i++) {
     if (h263_level_mapping_table[i].gst_id == level)
       return h263_level_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *str;
 } mpeg4_profile_mapping_table[] = {
   {
   MPEG4ProfileSimple, "simple"}, {
   MPEG4ProfileSimpleScalable, "simple-scalable"}, {
   MPEG4ProfileCore, "core"}, {
   MPEG4ProfileMain, "main"}, {
   MPEG4ProfileNbit, "n-bit"}, {
   MPEG4ProfileScalableTexture, "scalable"}, {
   MPEG4ProfileSimpleFace, "simple-face"}, {
   MPEG4ProfileSimpleFBA, "simple-fba"}, {
   MPEG4ProfileBasicAnimated, "basic-animated-texture"}, {
   MPEG4ProfileHybrid, "hybrid"}, {
   MPEG4ProfileAdvancedRealTime, "advanced-real-time"}, {
   MPEG4ProfileCoreScalable, "core-scalable"}, {
   MPEG4ProfileAdvancedCoding, "advanced-coding-efficiency"}, {
   MPEG4ProfileAdvancedCore, "advanced-core"}, {
   MPEG4ProfileAdvancedScalable, "advanced-scalable-texture"}, {
   MPEG4ProfileAdvancedSimple, "advanced-simple"}
 };

 const gchar *
 gst_amc_mpeg4_profile_to_string (gint profile)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (mpeg4_profile_mapping_table); i++) {
     if (mpeg4_profile_mapping_table[i].id == profile)
       return mpeg4_profile_mapping_table[i].str;
   }

   return NULL;
 }

 gint
 gst_amc_mpeg4_profile_from_string (const gchar * profile)
 {
   gint i;

   g_return_val_if_fail (profile != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (mpeg4_profile_mapping_table); i++) {
     if (strcmp (mpeg4_profile_mapping_table[i].str, profile) == 0)
       return mpeg4_profile_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *str;
 } mpeg4_level_mapping_table[] = {
   {
   MPEG4Level0, "0"}, {
   MPEG4Level0b, "0b"}, {
   MPEG4Level1, "1"}, {
   MPEG4Level2, "2"}, {
   MPEG4Level3, "3"}, {
   MPEG4Level4, "4"}, {
   MPEG4Level4a, "4a"}, {
 MPEG4Level5, "5"},};

 const gchar *
 gst_amc_mpeg4_level_to_string (gint level)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (mpeg4_level_mapping_table); i++) {
     if (mpeg4_level_mapping_table[i].id == level)
       return mpeg4_level_mapping_table[i].str;
   }

   return NULL;
 }

 gint
 gst_amc_mpeg4_level_from_string (const gchar * level)
 {
   gint i;

   g_return_val_if_fail (level != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (mpeg4_level_mapping_table); i++) {
     if (strcmp (mpeg4_level_mapping_table[i].str, level) == 0)
       return mpeg4_level_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   gint id;
   const gchar *str;
 } aac_profile_mapping_table[] = {
   {
   AACObjectMain, "main"}, {
   AACObjectLC, "lc"}, {
   AACObjectSSR, "ssr"}, {
   AACObjectLTP, "ltp"}
 };

 const gchar *
 gst_amc_aac_profile_to_string (gint profile)
 {
   gint i;

   for (i = 0; i < G_N_ELEMENTS (aac_profile_mapping_table); i++) {
     if (aac_profile_mapping_table[i].id == profile)
       return aac_profile_mapping_table[i].str;
   }

   return NULL;
 }

 gint
 gst_amc_aac_profile_from_string (const gchar * profile)
 {
   gint i;

   g_return_val_if_fail (profile != NULL, -1);

   for (i = 0; i < G_N_ELEMENTS (aac_profile_mapping_table); i++) {
     if (strcmp (aac_profile_mapping_table[i].str, profile) == 0)
       return aac_profile_mapping_table[i].id;
   }

   return -1;
 }

 static const struct
 {
   guint32 mask;
   GstAudioChannelPosition pos;
 } channel_mapping_table[] = {
   {
   CHANNEL_OUT_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT}, {
   CHANNEL_OUT_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, {
   CHANNEL_OUT_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}, {
   CHANNEL_OUT_LOW_FREQUENCY, GST_AUDIO_CHANNEL_POSITION_LFE1}, {
   CHANNEL_OUT_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT}, {
   CHANNEL_OUT_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
   CHANNEL_OUT_FRONT_LEFT_OF_CENTER,
         GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER}, {
   CHANNEL_OUT_FRONT_RIGHT_OF_CENTER,
         GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER}, {
   CHANNEL_OUT_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}, {
   CHANNEL_OUT_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT}, {
   CHANNEL_OUT_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT}, {
   CHANNEL_OUT_TOP_CENTER, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_INVALID}, {
   CHANNEL_OUT_TOP_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_INVALID}
 };

 gboolean
 gst_amc_audio_channel_mask_to_positions (guint32 channel_mask, gint channels,
     GstAudioChannelPosition * pos)
 {
   gint i, j;

   if (channel_mask == 0) {
     if (channels == 1) {
       pos[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
       return TRUE;
     }
     if (channels == 2) {
       pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
       pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
       return TRUE;
     }

     /* Now let the guesswork begin, these are the
      * AAC default channel assignments for these numbers
      * of channels */
     if (channels == 3) {
       channel_mask =
           CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |
           CHANNEL_OUT_FRONT_CENTER;
     } else if (channels == 4) {
       channel_mask =
           CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |
           CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_BACK_CENTER;
     } else if (channels == 5) {
       channel_mask =
           CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |
           CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_BACK_LEFT |
           CHANNEL_OUT_BACK_RIGHT;
     } else if (channels == 6) {
       channel_mask =
           CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |
           CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_BACK_LEFT |
           CHANNEL_OUT_BACK_RIGHT | CHANNEL_OUT_LOW_FREQUENCY;
     } else if (channels == 8) {
       channel_mask =
           CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |
           CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_BACK_LEFT |
           CHANNEL_OUT_BACK_RIGHT | CHANNEL_OUT_LOW_FREQUENCY |
           CHANNEL_OUT_FRONT_LEFT_OF_CENTER | CHANNEL_OUT_FRONT_RIGHT_OF_CENTER;
     }
   }

   for (i = 0, j = 0; i < G_N_ELEMENTS (channel_mapping_table); i++) {
     if ((channel_mask & channel_mapping_table[i].mask)) {
       pos[j++] = channel_mapping_table[i].pos;
       if (channel_mapping_table[i].pos == GST_AUDIO_CHANNEL_POSITION_INVALID) {
         memset (pos, 0, sizeof (GstAudioChannelPosition) * channels);
         GST_ERROR ("Unable to map channel mask 0x%08x",
             channel_mapping_table[i].mask);
         return FALSE;
       }
       if (j == channels)
         break;
     }
   }

   if (j != channels) {
     memset (pos, 0, sizeof (GstAudioChannelPosition) * channels);
     GST_ERROR ("Unable to map all channel positions in mask 0x%08x",
         channel_mask);
     return FALSE;
   }

   return TRUE;
 }

 guint32
 gst_amc_audio_channel_mask_from_positions (GstAudioChannelPosition * positions,
     gint channels)
 {
   gint i, j;
   guint32 channel_mask = 0;

   if (channels == 1 && !positions)
     return CHANNEL_OUT_FRONT_CENTER;
   if (channels == 2 && !positions)
     return CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT;

   for (i = 0; i < channels; i++) {
     if (positions[i] == GST_AUDIO_CHANNEL_POSITION_INVALID)
       return 0;

     for (j = 0; j < G_N_ELEMENTS (channel_mapping_table); j++) {
       if (channel_mapping_table[j].pos == positions[i]) {
         channel_mask |= channel_mapping_table[j].mask;
         break;
       }
     }

     if (j == G_N_ELEMENTS (channel_mapping_table)) {
       GST_ERROR ("Unable to map channel position %d", positions[i]);
       return 0;
     }
   }

   return channel_mask;
 }

 static gchar *
 create_type_name (const gchar * parent_name, const gchar * codec_name)
 {
   gchar *typified_name;
   gint i, k;
   gint parent_name_len = strlen (parent_name);
   gint codec_name_len = strlen (codec_name);
   gboolean upper = TRUE;

   typified_name = g_new0 (gchar, parent_name_len + 1 + strlen (codec_name) + 1);
   memcpy (typified_name, parent_name, parent_name_len);
   typified_name[parent_name_len] = '-';

   for (i = 0, k = 0; i < codec_name_len; i++) {
     if (g_ascii_isalnum (codec_name[i])) {
       if (upper)
         typified_name[parent_name_len + 1 + k++] =
             g_ascii_toupper (codec_name[i]);
       else
         typified_name[parent_name_len + 1 + k++] =
             g_ascii_tolower (codec_name[i]);

       upper = FALSE;
     } else {
       /* Skip all non-alnum chars and start a new upper case word */
       upper = TRUE;
     }
   }

   return typified_name;
 }

 static gchar *
 create_element_name (gboolean video, gboolean encoder, const gchar * codec_name)
 {
 #define PREFIX_LEN 10
   static const gchar *prefixes[] = {
     "amcviddec-",
     "amcauddec-",
     "amcvidenc-",
     "amcaudenc-"
   };
   gchar *element_name;
   gint i, k;
   gint codec_name_len = strlen (codec_name);
   const gchar *prefix;

   if (video && !encoder)
     prefix = prefixes[0];
   else if (!video && !encoder)
     prefix = prefixes[1];
   else if (video && encoder)
     prefix = prefixes[2];
   else
     prefix = prefixes[3];

   element_name = g_new0 (gchar, PREFIX_LEN + strlen (codec_name) + 1);
   memcpy (element_name, prefix, PREFIX_LEN);

   for (i = 0, k = 0; i < codec_name_len; i++) {
     if (g_ascii_isalnum (codec_name[i])) {
       element_name[PREFIX_LEN + k++] = g_ascii_tolower (codec_name[i]);
     }
     /* Skip all non-alnum chars */
   }

   return element_name;
 }

 #undef PREFIX_LEN

 static gboolean
 register_codecs (GstPlugin * plugin)
 {
   gboolean ret = TRUE;
   GList *l;

   GST_DEBUG ("Registering plugins");

   for (l = codec_infos; l; l = l->next) {
     GstAmcCodecInfo *codec_info = l->data;
     gboolean is_audio = FALSE;
     gboolean is_video = FALSE;
     gint i;
     gint n_types;

     GST_DEBUG ("Registering codec '%s'", codec_info->name);
     for (i = 0; i < codec_info->n_supported_types; i++) {
       GstAmcCodecType *codec_type = &codec_info->supported_types[i];

       if (g_str_has_prefix (codec_type->mime, "audio/"))
         is_audio = TRUE;
       else if (g_str_has_prefix (codec_type->mime, "video/"))
         is_video = TRUE;
     }

     n_types = 0;
     if (is_audio)
       n_types++;
     if (is_video)
       n_types++;

     for (i = 0; i < n_types; i++) {
       GTypeQuery type_query;
       GTypeInfo type_info = { 0, };
       GType type, subtype;
       gchar *type_name, *element_name;
       guint rank;

       if (is_video) {
         if (codec_info->is_encoder)
           type = gst_amc_video_enc_get_type ();
         else
           type = gst_amc_video_dec_get_type ();
       } else if (is_audio && !codec_info->is_encoder) {
         type = gst_amc_audio_dec_get_type ();
       } else {
         GST_DEBUG ("Skipping unsupported codec type");
         continue;
       }

       g_type_query (type, &type_query);
       memset (&type_info, 0, sizeof (type_info));
       type_info.class_size = type_query.class_size;
       type_info.instance_size = type_query.instance_size;
       type_name = create_type_name (type_query.type_name, codec_info->name);

       if (g_type_from_name (type_name) != G_TYPE_INVALID) {
         GST_ERROR ("Type '%s' already exists for codec '%s'", type_name,
             codec_info->name);
         g_free (type_name);
         continue;
       }

       subtype = g_type_register_static (type, type_name, &type_info, 0);
       g_free (type_name);

       g_type_set_qdata (subtype, gst_amc_codec_info_quark, codec_info);

       element_name =
           create_element_name (is_video, codec_info->is_encoder,
           codec_info->name);

       /* Give the Google software codec a secondary rank,
        * everything else is likely a hardware codec, except
        * OMX.SEC.*.sw.dec (as seen in Galaxy S4).
        *
        * Also on some devices there are codecs that don't start
        * with OMX., while there are also some that do. And on
        * some of these devices the ones that don't start with
        * OMX. just crash during initialization while the others
        * work. To make things even more complicated other devices
        * have codecs with the same name that work and no alternatives.
        * So just give a lower rank to these non-OMX codecs and hope
        * that there's an alternative with a higher rank.
        */
       if (g_str_has_prefix (codec_info->name, "OMX.google") ||
           g_str_has_suffix (codec_info->name, ".sw.dec")) {
         /* For video we prefer hardware codecs, for audio we prefer software
          * codecs. Hardware codecs don't make much sense for audio */
         rank = is_video ? GST_RANK_SECONDARY : GST_RANK_PRIMARY;
       } else if (g_str_has_prefix (codec_info->name, "OMX.Exynos.")
           && !is_video) {
         /* OMX.Exynos. audio codecs are existing on some devices like the
          * Galaxy S5 mini, and cause random crashes (of the device,
          * not the app!) and generally misbehave. That specific device
          * has other codecs that work with a different name, but let's
          * just give them marginal rank in case there are devices that
          * have no other codecs and these are actually the only working
          * ones
          */
         rank = GST_RANK_MARGINAL;
       } else if (g_str_has_prefix (codec_info->name, "OMX.")) {
         rank = is_video ? GST_RANK_PRIMARY : GST_RANK_SECONDARY;
       } else {
         rank = GST_RANK_MARGINAL;
       }

       ret |= gst_element_register (plugin, element_name, rank, subtype);
       g_free (element_name);

       is_video = FALSE;
     }
   }

   return ret;
 }

 static gboolean
 plugin_init (GstPlugin * plugin)
 {
   const gchar *ignore;

   GST_DEBUG_CATEGORY_INIT (gst_amc_debug, "amc", 0, "android-media-codec");

   if (!gst_amc_jni_initialize ())
     return FALSE;

   gst_plugin_add_dependency_simple (plugin, NULL, "/etc", "media_codecs.xml",
       GST_PLUGIN_DEPENDENCY_FLAG_NONE);

   if (!get_java_classes ())
     return FALSE;

   /* Set this to TRUE to allow registering decoders that have
    * any unknown color formats, or encoders that only have
    * unknown color formats
    */
   ignore = g_getenv ("GST_AMC_IGNORE_UNKNOWN_COLOR_FORMATS");
   if (ignore && strcmp (ignore, "yes") == 0)
     ignore_unknown_color_formats = TRUE;

   if (!scan_codecs (plugin))
     return FALSE;

   gst_amc_codec_info_quark = g_quark_from_static_string ("gst-amc-codec-info");

   if (!register_codecs (plugin))
     return FALSE;

   if (!gst_android_graphics_surfacetexture_init ()) {
     GST_ERROR ("Failed to init android surface texture");
     return FALSE;
   }

   if (!gst_android_graphics_imageformat_init ()) {
     GST_ERROR ("Failed to init android image format");
     goto failed_surfacetexture;
   }

   if (!gst_android_hardware_camera_init ()) {
     goto failed_graphics_imageformat;
   }

   if (!gst_element_register (plugin, "ahcsrc", GST_RANK_NONE, GST_TYPE_AHC_SRC)) {
     GST_ERROR ("Failed to register android camera source");
     goto failed_hardware_camera;
   }

   return TRUE;

 failed_hardware_camera:
   gst_android_hardware_camera_deinit ();
 failed_graphics_imageformat:
   gst_android_graphics_imageformat_deinit ();
 failed_surfacetexture:
   gst_android_graphics_surfacetexture_deinit ();
   return FALSE;
 }

 void
 gst_amc_codec_info_to_caps (const GstAmcCodecInfo * codec_info,
     GstCaps ** sink_caps, GstCaps ** src_caps)
 {
   GstCaps *raw_ret = NULL, *encoded_ret = NULL;
   gint i;

   if (codec_info->is_encoder) {
     if (sink_caps)
       *sink_caps = raw_ret = gst_caps_new_empty ();

     if (src_caps)
       *src_caps = encoded_ret = gst_caps_new_empty ();
   } else {
     if (sink_caps)
       *sink_caps = encoded_ret = gst_caps_new_empty ();

     if (src_caps)
       *src_caps = raw_ret = gst_caps_new_empty ();
   }

   for (i = 0; i < codec_info->n_supported_types; i++) {
     const GstAmcCodecType *type = &codec_info->supported_types[i];
     GstStructure *tmp, *tmp2, *tmp3;

     if (g_str_has_prefix (type->mime, "audio/")) {
       if (raw_ret) {
         tmp = gst_structure_new ("audio/x-raw",
             "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
             "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
             "format", G_TYPE_STRING, GST_AUDIO_NE (S16), NULL);

         raw_ret = gst_caps_merge_structure (raw_ret, tmp);
       }

       if (encoded_ret) {
         if (strcmp (type->mime, "audio/mpeg") == 0) {
           tmp = gst_structure_new ("audio/mpeg",
               "mpegversion", G_TYPE_INT, 1,
               "layer", G_TYPE_INT, 3,
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/3gpp") == 0) {
           tmp = gst_structure_new ("audio/AMR",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/amr-wb") == 0) {
           tmp = gst_structure_new ("audio/AMR-WB",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/mp4a-latm") == 0) {
           gint j;
           gboolean have_profile = FALSE;
           GValue va = { 0, };
           GValue v = { 0, };

           g_value_init (&va, GST_TYPE_LIST);
           g_value_init (&v, G_TYPE_STRING);
           g_value_set_string (&v, "raw");
           gst_value_list_append_value (&va, &v);
           g_value_set_string (&v, "adts");
           gst_value_list_append_value (&va, &v);
           g_value_unset (&v);

           tmp = gst_structure_new ("audio/mpeg",
               "mpegversion", G_TYPE_INT, 4,
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "framed", G_TYPE_BOOLEAN, TRUE, NULL);
           gst_structure_set_value (tmp, "stream-format", &va);
           g_value_unset (&va);

           for (j = 0; j < type->n_profile_levels; j++) {
             const gchar *profile;

             profile =
                 gst_amc_aac_profile_to_string (type->profile_levels[j].profile);

             if (!profile) {
               GST_ERROR ("Unable to map AAC profile 0x%08x",
                   type->profile_levels[j].profile);
               continue;
             }

             tmp2 = gst_structure_copy (tmp);
             gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp2);

             have_profile = TRUE;
           }

           if (!have_profile) {
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
           } else {
             gst_structure_free (tmp);
           }
         } else if (strcmp (type->mime, "audio/g711-alaw") == 0) {
           tmp = gst_structure_new ("audio/x-alaw",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/g711-mlaw") == 0) {
           tmp = gst_structure_new ("audio/x-mulaw",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/vorbis") == 0) {
           tmp = gst_structure_new ("audio/x-vorbis",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/flac") == 0) {
           tmp = gst_structure_new ("audio/x-flac",
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "framed", G_TYPE_BOOLEAN, TRUE, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "audio/mpeg-L2") == 0) {
           tmp = gst_structure_new ("audio/mpeg",
               "mpegversion", G_TYPE_INT, 1,
               "layer", G_TYPE_INT, 2,
               "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else {
           GST_WARNING ("Unsupported mimetype '%s'", type->mime);
         }
       }
     } else if (g_str_has_prefix (type->mime, "video/")) {
       if (raw_ret) {
         gint j;

         for (j = 0; j < type->n_color_formats; j++) {
           GstVideoFormat format;

           format =
               gst_amc_color_format_to_video_format (codec_info,
               type->mime, type->color_formats[j]);
           if (format == GST_VIDEO_FORMAT_UNKNOWN) {
             GST_WARNING ("Unknown color format 0x%08x for codec %s",
                 type->color_formats[j], type->mime);
             continue;
           }

           tmp = gst_structure_new ("video/x-raw",
               "format", G_TYPE_STRING, gst_video_format_to_string (format),
               "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
               "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);

           raw_ret = gst_caps_merge_structure (raw_ret, tmp);
         }
       }

       if (encoded_ret) {
         if (strcmp (type->mime, "video/mp4v-es") == 0) {
           gint j;
           gboolean have_profile_level = FALSE;

           tmp = gst_structure_new ("video/mpeg",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "mpegversion", G_TYPE_INT, 4,
               "systemstream", G_TYPE_BOOLEAN, FALSE,
               "parsed", G_TYPE_BOOLEAN, TRUE, NULL);

           if (type->n_profile_levels) {
             for (j = type->n_profile_levels - 1; j >= 0; j--) {
               const gchar *profile;

               profile =
                   gst_amc_mpeg4_profile_to_string (type->profile_levels[j].
                   profile);
               if (!profile) {
                 GST_ERROR ("Unable to map MPEG4 profile 0x%08x",
                     type->profile_levels[j].profile);
                 continue;
               }

               tmp2 = gst_structure_copy (tmp);
               gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);

               /* Don't put the level restrictions on the sinkpad caps for decoders,
                * see 2b94641a4 */
               if (codec_info->is_encoder) {
                 const gchar *level;
                 gint k;
                 GValue va = { 0, };
                 GValue v = { 0, };

                 g_value_init (&va, GST_TYPE_LIST);
                 g_value_init (&v, G_TYPE_STRING);

                 for (k = 1; k <= type->profile_levels[j].level && k != 0;
                     k <<= 1) {
                   level = gst_amc_mpeg4_level_to_string (k);
                   if (!level)
                     continue;

                   g_value_set_string (&v, level);
                   gst_value_list_append_value (&va, &v);
                   g_value_reset (&v);
                 }

                 gst_structure_set_value (tmp2, "level", &va);
                 g_value_unset (&va);
                 g_value_unset (&v);
               }

               encoded_ret = gst_caps_merge_structure (encoded_ret, tmp2);
               have_profile_level = TRUE;
             }
           }

           if (!have_profile_level) {
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
           } else {
             gst_structure_free (tmp);
           }

           tmp = gst_structure_new ("video/x-divx",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "divxversion", GST_TYPE_INT_RANGE, 3, 5,
               "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "video/3gpp") == 0) {
           gint j;
           gboolean have_profile_level = FALSE;

           tmp = gst_structure_new ("video/x-h263",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "parsed", G_TYPE_BOOLEAN, TRUE,
               "variant", G_TYPE_STRING, "itu", NULL);

           if (type->n_profile_levels) {
             for (j = type->n_profile_levels - 1; j >= 0; j--) {
               gint profile;

               profile =
                   gst_amc_h263_profile_to_gst_id (type->profile_levels[j].
                   profile);

               if (profile == -1) {
                 GST_ERROR ("Unable to map h263 profile 0x%08x",
                     type->profile_levels[j].profile);
                 continue;
               }

               tmp2 = gst_structure_copy (tmp);
               gst_structure_set (tmp2, "profile", G_TYPE_UINT, profile, NULL);

               if (codec_info->is_encoder) {
                 gint k;
                 gint level;
                 GValue va = { 0, };
                 GValue v = { 0, };

                 g_value_init (&va, GST_TYPE_LIST);
                 g_value_init (&v, G_TYPE_UINT);

                 for (k = 1; k <= type->profile_levels[j].level && k != 0;
                     k <<= 1) {
                   level = gst_amc_h263_level_to_gst_id (k);
                   if (level == -1)
                     continue;

                   g_value_set_uint (&v, level);
                   gst_value_list_append_value (&va, &v);
                   g_value_reset (&v);
                 }

                 gst_structure_set_value (tmp2, "level", &va);
                 g_value_unset (&va);
                 g_value_unset (&v);
               }

               encoded_ret = gst_caps_merge_structure (encoded_ret, tmp2);
               have_profile_level = TRUE;
             }
           }

           if (!have_profile_level) {
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
           } else {
             gst_structure_free (tmp);
           }
         } else if (strcmp (type->mime, "video/avc") == 0) {
           gint j;
           gboolean have_profile_level = FALSE;

           tmp = gst_structure_new ("video/x-h264",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "parsed", G_TYPE_BOOLEAN, TRUE,
               "stream-format", G_TYPE_STRING, "byte-stream",
               "alignment", G_TYPE_STRING, "au", NULL);

           if (type->n_profile_levels) {
             for (j = type->n_profile_levels - 1; j >= 0; j--) {
               const gchar *profile, *alternative = NULL;

               profile =
                   gst_amc_avc_profile_to_string (type->profile_levels[j].
                   profile, &alternative);

               if (!profile) {
                 GST_ERROR ("Unable to map H264 profile 0x%08x",
                     type->profile_levels[j].profile);
                 continue;
               }

               tmp2 = gst_structure_copy (tmp);
               gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);

               if (alternative) {
                 tmp3 = gst_structure_copy (tmp);
                 gst_structure_set (tmp3, "profile", G_TYPE_STRING, alternative,
                     NULL);
               } else
                 tmp3 = NULL;

               if (codec_info->is_encoder) {
                 const gchar *level;
                 gint k;
                 GValue va = { 0, };
                 GValue v = { 0, };

                 g_value_init (&va, GST_TYPE_LIST);
                 g_value_init (&v, G_TYPE_STRING);
                 for (k = 1; k <= type->profile_levels[j].level && k != 0;
                     k <<= 1) {
                   level = gst_amc_avc_level_to_string (k);
                   if (!level)
                     continue;

                   g_value_set_string (&v, level);
                   gst_value_list_append_value (&va, &v);
                   g_value_reset (&v);
                 }

                 gst_structure_set_value (tmp2, "level", &va);
                 if (tmp3)
                   gst_structure_set_value (tmp3, "level", &va);

                 g_value_unset (&va);
                 g_value_unset (&v);
               }

               encoded_ret = gst_caps_merge_structure (encoded_ret, tmp2);
               if (tmp3)
                 encoded_ret = gst_caps_merge_structure (encoded_ret, tmp3);
               have_profile_level = TRUE;
             }
           }

           if (!have_profile_level) {
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
           } else {
             gst_structure_free (tmp);
           }
         } else if (strcmp (type->mime, "video/hevc") == 0) {
           gint j;
           gboolean have_profile_level = FALSE;

           tmp = gst_structure_new ("video/x-h265",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "parsed", G_TYPE_BOOLEAN, TRUE,
               "stream-format", G_TYPE_STRING, "byte-stream",
               "alignment", G_TYPE_STRING, "au", NULL);

           if (type->n_profile_levels) {
             for (j = type->n_profile_levels - 1; j >= 0; j--) {
               const gchar *profile;

               profile =
                   gst_amc_hevc_profile_to_string (type->profile_levels[j].
                   profile);

               if (!profile) {
                 GST_ERROR ("Unable to map H265 profile 0x%08x",
                     type->profile_levels[j].profile);
                 continue;
               }

               tmp2 = gst_structure_copy (tmp);
               gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL);

               /* FIXME: Implement tier/level support here */
 #if 0
               if (codec_info->is_encoder) {
                 const gchar *level, *tier;
                 gint k;
                 GValue va = { 0, };
                 GValue v = { 0, };

                 g_value_init (&va, GST_TYPE_LIST);
                 g_value_init (&v, G_TYPE_STRING);
                 for (k = 1; k <= type->profile_levels[j].level && k != 0;
                     k <<= 1) {
                   level = gst_amc_hevc_tier_level_to_string (k, &tier);
                   if (!level)
                     continue;

                   g_value_set_string (&v, level);
                   gst_value_list_append_value (&va, &v);
                   g_value_reset (&v);
                 }

                 gst_structure_set_value (tmp2, "level", &va);

                 g_value_unset (&va);
                 g_value_unset (&v);
               }
 #endif

               encoded_ret = gst_caps_merge_structure (encoded_ret, tmp2);
               have_profile_level = TRUE;
             }
           }

           if (!have_profile_level) {
             encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
           } else {
             gst_structure_free (tmp);
           }
         } else if (strcmp (type->mime, "video/x-vnd.on2.vp8") == 0) {
           tmp = gst_structure_new ("video/x-vp8",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);

           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else if (strcmp (type->mime, "video/mpeg2") == 0) {
           tmp = gst_structure_new ("video/mpeg",
               "width", GST_TYPE_INT_RANGE, 16, 4096,
               "height", GST_TYPE_INT_RANGE, 16, 4096,
               "framerate", GST_TYPE_FRACTION_RANGE,
               0, 1, G_MAXINT, 1,
               "mpegversion", GST_TYPE_INT_RANGE, 1, 2,
               "systemstream", G_TYPE_BOOLEAN, FALSE,
               "parsed", G_TYPE_BOOLEAN, TRUE, NULL);

           encoded_ret = gst_caps_merge_structure (encoded_ret, tmp);
         } else {
           GST_WARNING ("Unsupported mimetype '%s'", type->mime);
         }
       }
     }
   }
 }

 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
     GST_VERSION_MINOR,
     androidmedia,
     "Android Media plugin",
     plugin_init,
     PACKAGE_VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)