| /* |
| * Initially based on gst-plugins-bad/sys/androidmedia/gstamcvideodec.c |
| * |
| * Copyright (C) 2011, Hewlett-Packard Development Company, L.P. |
| * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd. |
| * |
| * Copyright (C) 2012, Collabora Ltd. |
| * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk> |
| * |
| * Copyright (C) 2013, Lemote Ltd. |
| * Author: Chen Jie <chenj@lemote.com> |
| * |
| * 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 |
| |
| #include <gst/gst.h> |
| #include <string.h> |
| |
| #ifdef HAVE_ORC |
| #include <orc/orc.h> |
| #else |
| #define orc_memcpy memcpy |
| #endif |
| |
| #include "gstamcvideoenc.h" |
| #include "gstamc-constants.h" |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_amc_video_enc_debug_category); |
| #define GST_CAT_DEFAULT gst_amc_video_enc_debug_category |
| |
| typedef struct _BufferIdentification BufferIdentification; |
| struct _BufferIdentification |
| { |
| guint64 timestamp; |
| }; |
| |
| static BufferIdentification * |
| buffer_identification_new (GstClockTime timestamp) |
| { |
| BufferIdentification *id = g_slice_new (BufferIdentification); |
| |
| id->timestamp = timestamp; |
| |
| return id; |
| } |
| |
| static void |
| buffer_identification_free (BufferIdentification * id) |
| { |
| g_slice_free (BufferIdentification, id); |
| } |
| |
| /* prototypes */ |
| static void gst_amc_video_enc_finalize (GObject * object); |
| |
| static GstStateChangeReturn |
| gst_amc_video_enc_change_state (GstElement * element, |
| GstStateChange transition); |
| |
| static gboolean gst_amc_video_enc_open (GstVideoEncoder * encoder); |
| static gboolean gst_amc_video_enc_close (GstVideoEncoder * encoder); |
| static gboolean gst_amc_video_enc_start (GstVideoEncoder * encoder); |
| static gboolean gst_amc_video_enc_stop (GstVideoEncoder * encoder); |
| static gboolean gst_amc_video_enc_set_format (GstVideoEncoder * encoder, |
| GstVideoCodecState * state); |
| static gboolean gst_amc_video_enc_flush (GstVideoEncoder * encoder); |
| static GstFlowReturn gst_amc_video_enc_handle_frame (GstVideoEncoder * encoder, |
| GstVideoCodecFrame * frame); |
| static GstFlowReturn gst_amc_video_enc_finish (GstVideoEncoder * encoder); |
| |
| static GstFlowReturn gst_amc_video_enc_drain (GstAmcVideoEnc * self); |
| |
| #define BIT_RATE_DEFAULT (2 * 1024 * 1024) |
| #define I_FRAME_INTERVAL_DEFAULT 0 |
| enum |
| { |
| PROP_0, |
| PROP_BIT_RATE, |
| PROP_I_FRAME_INTERVAL |
| }; |
| |
| /* class initialization */ |
| |
| static void gst_amc_video_enc_class_init (GstAmcVideoEncClass * klass); |
| static void gst_amc_video_enc_init (GstAmcVideoEnc * self); |
| static void gst_amc_video_enc_base_init (gpointer g_class); |
| |
| static GstVideoEncoderClass *parent_class = NULL; |
| |
| GType |
| gst_amc_video_enc_get_type (void) |
| { |
| static volatile gsize type = 0; |
| |
| if (g_once_init_enter (&type)) { |
| GType _type; |
| static const GTypeInfo info = { |
| sizeof (GstAmcVideoEncClass), |
| gst_amc_video_enc_base_init, |
| NULL, |
| (GClassInitFunc) gst_amc_video_enc_class_init, |
| NULL, |
| NULL, |
| sizeof (GstAmcVideoEnc), |
| 0, |
| (GInstanceInitFunc) gst_amc_video_enc_init, |
| NULL |
| }; |
| |
| _type = g_type_register_static (GST_TYPE_VIDEO_ENCODER, "GstAmcVideoEnc", |
| &info, 0); |
| |
| GST_DEBUG_CATEGORY_INIT (gst_amc_video_enc_debug_category, "amcvideoenc", 0, |
| "Android MediaCodec video encoder"); |
| |
| g_once_init_leave (&type, _type); |
| } |
| return type; |
| } |
| |
| static GstAmcFormat * |
| create_amc_format (GstAmcVideoEnc * encoder, GstVideoCodecState * input_state, |
| GstCaps * src_caps) |
| { |
| GstAmcVideoEncClass *klass; |
| GstStructure *s; |
| const gchar *name; |
| const gchar *mime = NULL; |
| const gchar *profile_string = NULL; |
| const gchar *level_string = NULL; |
| struct |
| { |
| const gchar *key; |
| gint id; |
| } amc_profile = { |
| NULL, -1}; |
| struct |
| { |
| const gchar *key; |
| gint id; |
| } amc_level = { |
| NULL, -1}; |
| gint color_format; |
| gint stride, slice_height; |
| GstAmcFormat *format = NULL; |
| GstVideoInfo *info = &input_state->info; |
| GError *err = NULL; |
| |
| klass = GST_AMC_VIDEO_ENC_GET_CLASS (encoder); |
| s = gst_caps_get_structure (src_caps, 0); |
| if (!s) |
| return NULL; |
| |
| name = gst_structure_get_name (s); |
| profile_string = gst_structure_get_string (s, "profile"); |
| level_string = gst_structure_get_string (s, "level"); |
| |
| if (strcmp (name, "video/mpeg") == 0) { |
| gint mpegversion; |
| |
| if (!gst_structure_get_int (s, "mpegversion", &mpegversion)) |
| return NULL; |
| |
| if (mpegversion == 4) { |
| mime = "video/mp4v-es"; |
| |
| if (profile_string) { |
| amc_profile.key = "profile"; /* named profile ? */ |
| amc_profile.id = gst_amc_mpeg4_profile_from_string (profile_string); |
| } |
| |
| if (level_string) { |
| amc_level.key = "level"; /* named level ? */ |
| amc_level.id = gst_amc_mpeg4_level_from_string (level_string); |
| } |
| } else if ( /* mpegversion == 1 || */ mpegversion == 2) |
| mime = "video/mpeg2"; |
| } else if (strcmp (name, "video/x-h263") == 0) { |
| mime = "video/3gpp"; |
| } else if (strcmp (name, "video/x-h264") == 0) { |
| mime = "video/avc"; |
| |
| if (profile_string) { |
| amc_profile.key = "profile"; /* named profile ? */ |
| amc_profile.id = gst_amc_avc_profile_from_string (profile_string); |
| } |
| |
| if (level_string) { |
| amc_level.key = "level"; /* named level ? */ |
| amc_level.id = gst_amc_avc_level_from_string (level_string); |
| } |
| } else if (strcmp (name, "video/x-vp8") == 0) { |
| mime = "video/x-vnd.on2.vp8"; |
| } else { |
| GST_ERROR_OBJECT (encoder, "Failed to convert caps(%s/...) to any mime", |
| name); |
| return NULL; |
| } |
| |
| format = gst_amc_format_new_video (mime, info->width, info->height, &err); |
| if (!format) { |
| GST_ERROR_OBJECT (encoder, "Failed to create a \"%s,%dx%d\" MediaFormat", |
| mime, info->width, info->height); |
| GST_ELEMENT_ERROR_FROM_ERROR (encoder, err); |
| return NULL; |
| } |
| |
| color_format = |
| gst_amc_video_format_to_color_format (klass->codec_info, |
| mime, info->finfo->format); |
| if (color_format == -1) |
| goto video_format_failed_to_convert; |
| |
| gst_amc_format_set_int (format, "bitrate", encoder->bitrate, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| gst_amc_format_set_int (format, "color-format", color_format, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| stride = GST_ROUND_UP_4 (info->width); /* safe (?) */ |
| gst_amc_format_set_int (format, "stride", stride, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| slice_height = info->height; |
| gst_amc_format_set_int (format, "slice-height", slice_height, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| |
| if (profile_string) { |
| if (amc_profile.id == -1) |
| goto unsupported_profile; |
| |
| /* FIXME: Set to any value in AVCProfile* leads to |
| * codec configuration fail */ |
| /* gst_amc_format_set_int (format, amc_profile.key, 0x40); */ |
| } |
| |
| if (level_string) { |
| if (amc_level.id == -1) |
| goto unsupported_level; |
| |
| /* gst_amc_format_set_int (format, amc_level.key, amc_level.id); */ |
| } |
| |
| gst_amc_format_set_int (format, "i-frame-interval", encoder->i_frame_int, |
| &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| |
| if (info->fps_d) |
| gst_amc_format_set_float (format, "frame-rate", |
| ((gfloat) info->fps_n) / info->fps_d, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (encoder, err); |
| |
| encoder->format = info->finfo->format; |
| if (!gst_amc_color_format_info_set (&encoder->color_format_info, |
| klass->codec_info, mime, color_format, info->width, info->height, |
| stride, slice_height, 0, 0, 0, 0)) |
| goto color_format_info_failed_to_set; |
| |
| GST_DEBUG_OBJECT (encoder, |
| "Color format info: {color_format=%d, width=%d, height=%d, " |
| "stride=%d, slice-height=%d, crop-left=%d, crop-top=%d, " |
| "crop-right=%d, crop-bottom=%d, frame-size=%d}", |
| encoder->color_format_info.color_format, encoder->color_format_info.width, |
| encoder->color_format_info.height, encoder->color_format_info.stride, |
| encoder->color_format_info.slice_height, |
| encoder->color_format_info.crop_left, encoder->color_format_info.crop_top, |
| encoder->color_format_info.crop_right, |
| encoder->color_format_info.crop_bottom, |
| encoder->color_format_info.frame_size); |
| |
| return format; |
| |
| video_format_failed_to_convert: |
| GST_ERROR_OBJECT (encoder, "Failed to convert video format"); |
| gst_amc_format_free (format); |
| return NULL; |
| |
| color_format_info_failed_to_set: |
| GST_ERROR_OBJECT (encoder, "Failed to set up GstAmcColorFormatInfo"); |
| gst_amc_format_free (format); |
| return NULL; |
| |
| unsupported_profile: |
| GST_ERROR_OBJECT (encoder, "Unsupport profile '%s'", profile_string); |
| gst_amc_format_free (format); |
| return NULL; |
| |
| unsupported_level: |
| GST_ERROR_OBJECT (encoder, "Unsupport level '%s'", level_string); |
| gst_amc_format_free (format); |
| return NULL; |
| } |
| |
| static GstCaps * |
| caps_from_amc_format (GstAmcFormat * amc_format) |
| { |
| GstCaps *caps = NULL; |
| gchar *mime = NULL; |
| gint width, height; |
| gint amc_profile, amc_level; |
| gfloat frame_rate = 0.0; |
| gint fraction_n, fraction_d; |
| GError *err = NULL; |
| |
| if (!gst_amc_format_get_string (amc_format, "mime", &mime, &err)) { |
| GST_ERROR ("Failed to get 'mime': %s", err->message); |
| g_clear_error (&err); |
| return NULL; |
| } |
| |
| if (!gst_amc_format_get_int (amc_format, "width", &width, &err) || |
| !gst_amc_format_get_int (amc_format, "height", &height, &err)) { |
| GST_ERROR ("Failed to get size: %s", err->message); |
| g_clear_error (&err); |
| |
| g_free (mime); |
| return NULL; |
| } |
| |
| gst_amc_format_get_float (amc_format, "frame-rate", &frame_rate, NULL); |
| gst_util_double_to_fraction (frame_rate, &fraction_n, &fraction_d); |
| |
| if (strcmp (mime, "video/mp4v-es") == 0) { |
| const gchar *profile_string, *level_string; |
| |
| caps = |
| gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 4, |
| "systemstream", G_TYPE_BOOLEAN, FALSE, |
| "parsed", G_TYPE_BOOLEAN, TRUE, NULL); |
| |
| if (gst_amc_format_get_int (amc_format, "profile", &amc_profile, NULL)) { |
| profile_string = gst_amc_mpeg4_profile_to_string (amc_profile); |
| if (!profile_string) |
| goto unsupported_profile; |
| |
| gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile_string, |
| NULL); |
| } |
| |
| if (gst_amc_format_get_int (amc_format, "level", &amc_level, NULL)) { |
| level_string = gst_amc_mpeg4_level_to_string (amc_profile); |
| if (!level_string) |
| goto unsupported_level; |
| |
| gst_caps_set_simple (caps, "level", G_TYPE_STRING, level_string, NULL); |
| } |
| |
| } else if (strcmp (mime, "video/mpeg2") == 0) { |
| caps = gst_caps_new_simple ("video/mpeg", "mpegversion", 2, NULL); |
| } else if (strcmp (mime, "video/3gpp") == 0) { |
| caps = gst_caps_new_empty_simple ("video/x-h263"); |
| } else if (strcmp (mime, "video/avc") == 0) { |
| const gchar *profile_string, *level_string; |
| |
| caps = |
| gst_caps_new_simple ("video/x-h264", "parsed", G_TYPE_BOOLEAN, TRUE, |
| "stream-format", G_TYPE_STRING, "byte-stream", |
| "alignment", G_TYPE_STRING, "au", NULL); |
| |
| if (gst_amc_format_get_int (amc_format, "profile", &amc_profile, NULL)) { |
| profile_string = gst_amc_avc_profile_to_string (amc_profile, NULL); |
| if (!profile_string) |
| goto unsupported_profile; |
| |
| gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile_string, |
| NULL); |
| } |
| |
| if (gst_amc_format_get_int (amc_format, "level", &amc_level, NULL)) { |
| level_string = gst_amc_avc_level_to_string (amc_profile); |
| if (!level_string) |
| goto unsupported_level; |
| |
| gst_caps_set_simple (caps, "level", G_TYPE_STRING, level_string, NULL); |
| } |
| } else if (strcmp (mime, "video/x-vnd.on2.vp8") == 0) { |
| caps = gst_caps_new_empty_simple ("video/x-vp8"); |
| } |
| |
| gst_caps_set_simple (caps, "width", G_TYPE_INT, width, |
| "height", G_TYPE_INT, height, |
| "framerate", GST_TYPE_FRACTION, fraction_n, fraction_d, NULL); |
| |
| g_free (mime); |
| return caps; |
| |
| unsupported_profile: |
| GST_ERROR ("Unsupport amc profile id %d", amc_profile); |
| g_free (mime); |
| gst_caps_unref (caps); |
| |
| return NULL; |
| |
| unsupported_level: |
| GST_ERROR ("Unsupport amc level id %d", amc_level); |
| g_free (mime); |
| gst_caps_unref (caps); |
| |
| return NULL; |
| } |
| |
| static void |
| gst_amc_video_enc_base_init (gpointer g_class) |
| { |
| GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); |
| GstAmcVideoEncClass *videoenc_class = GST_AMC_VIDEO_ENC_CLASS (g_class); |
| const GstAmcCodecInfo *codec_info; |
| GstPadTemplate *templ; |
| GstCaps *sink_caps, *src_caps; |
| gchar *longname; |
| |
| codec_info = |
| g_type_get_qdata (G_TYPE_FROM_CLASS (g_class), gst_amc_codec_info_quark); |
| /* This happens for the base class and abstract subclasses */ |
| if (!codec_info) |
| return; |
| |
| videoenc_class->codec_info = codec_info; |
| |
| gst_amc_codec_info_to_caps (codec_info, &sink_caps, &src_caps); |
| /* Add pad templates */ |
| templ = |
| gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, sink_caps); |
| gst_element_class_add_pad_template (element_class, templ); |
| gst_caps_unref (sink_caps); |
| |
| templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, src_caps); |
| gst_element_class_add_pad_template (element_class, templ); |
| gst_caps_unref (src_caps); |
| |
| longname = g_strdup_printf ("Android MediaCodec %s", codec_info->name); |
| gst_element_class_set_metadata (element_class, |
| codec_info->name, |
| "Codec/Encoder/Video", |
| longname, "Sebastian Dröge <sebastian.droege@collabora.co.uk>"); |
| g_free (longname); |
| } |
| |
| static void |
| gst_amc_video_enc_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstAmcVideoEnc *encoder; |
| GstState state; |
| |
| encoder = GST_AMC_VIDEO_ENC (object); |
| |
| GST_OBJECT_LOCK (encoder); |
| |
| state = GST_STATE (encoder); |
| if (state != GST_STATE_READY && state != GST_STATE_NULL) |
| goto wrong_state; |
| |
| switch (prop_id) { |
| case PROP_BIT_RATE: |
| encoder->bitrate = g_value_get_uint (value); |
| break; |
| case PROP_I_FRAME_INTERVAL: |
| encoder->i_frame_int = g_value_get_uint (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (encoder); |
| return; |
| |
| /* ERROR */ |
| wrong_state: |
| { |
| GST_WARNING_OBJECT (encoder, "setting property in wrong state"); |
| GST_OBJECT_UNLOCK (encoder); |
| } |
| } |
| |
| static void |
| gst_amc_video_enc_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstAmcVideoEnc *encoder; |
| |
| encoder = GST_AMC_VIDEO_ENC (object); |
| |
| GST_OBJECT_LOCK (encoder); |
| switch (prop_id) { |
| case PROP_BIT_RATE: |
| g_value_set_uint (value, encoder->bitrate); |
| break; |
| case PROP_I_FRAME_INTERVAL: |
| g_value_set_uint (value, encoder->i_frame_int); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (encoder); |
| } |
| |
| |
| static void |
| gst_amc_video_enc_class_init (GstAmcVideoEncClass * klass) |
| { |
| GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
| GstElementClass *element_class = GST_ELEMENT_CLASS (klass); |
| GstVideoEncoderClass *videoenc_class = GST_VIDEO_ENCODER_CLASS (klass); |
| |
| parent_class = g_type_class_peek_parent (klass); |
| |
| gobject_class->set_property = gst_amc_video_enc_set_property; |
| gobject_class->get_property = gst_amc_video_enc_get_property; |
| gobject_class->finalize = gst_amc_video_enc_finalize; |
| |
| element_class->change_state = |
| GST_DEBUG_FUNCPTR (gst_amc_video_enc_change_state); |
| |
| videoenc_class->start = GST_DEBUG_FUNCPTR (gst_amc_video_enc_start); |
| videoenc_class->stop = GST_DEBUG_FUNCPTR (gst_amc_video_enc_stop); |
| videoenc_class->open = GST_DEBUG_FUNCPTR (gst_amc_video_enc_open); |
| videoenc_class->close = GST_DEBUG_FUNCPTR (gst_amc_video_enc_close); |
| videoenc_class->flush = GST_DEBUG_FUNCPTR (gst_amc_video_enc_flush); |
| videoenc_class->set_format = GST_DEBUG_FUNCPTR (gst_amc_video_enc_set_format); |
| videoenc_class->handle_frame = |
| GST_DEBUG_FUNCPTR (gst_amc_video_enc_handle_frame); |
| videoenc_class->finish = GST_DEBUG_FUNCPTR (gst_amc_video_enc_finish); |
| |
| g_object_class_install_property (gobject_class, PROP_BIT_RATE, |
| g_param_spec_uint ("bitrate", "Bitrate", "Bitrate in bit/sec", 1, |
| G_MAXINT, BIT_RATE_DEFAULT, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_I_FRAME_INTERVAL, |
| g_param_spec_uint ("i-frame-interval", "I-frame interval", |
| "The frequency of I frames expressed in seconds between I frames (0 for automatic)", |
| 0, G_MAXINT, I_FRAME_INTERVAL_DEFAULT, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| } |
| |
| static void |
| gst_amc_video_enc_init (GstAmcVideoEnc * self) |
| { |
| g_mutex_init (&self->drain_lock); |
| g_cond_init (&self->drain_cond); |
| |
| self->bitrate = BIT_RATE_DEFAULT; |
| self->i_frame_int = I_FRAME_INTERVAL_DEFAULT; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_open (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self = GST_AMC_VIDEO_ENC (encoder); |
| GstAmcVideoEncClass *klass = GST_AMC_VIDEO_ENC_GET_CLASS (self); |
| GError *err = NULL; |
| |
| GST_DEBUG_OBJECT (self, "Opening encoder"); |
| |
| self->codec = gst_amc_codec_new (klass->codec_info->name, &err); |
| if (!self->codec) { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| return FALSE; |
| } |
| self->started = FALSE; |
| self->flushing = TRUE; |
| |
| GST_DEBUG_OBJECT (self, "Opened encoder"); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_close (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self = GST_AMC_VIDEO_ENC (encoder); |
| |
| GST_DEBUG_OBJECT (self, "Closing encoder"); |
| |
| if (self->codec) { |
| GError *err = NULL; |
| |
| gst_amc_codec_release (self->codec, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| |
| gst_amc_codec_free (self->codec); |
| } |
| self->codec = NULL; |
| |
| self->started = FALSE; |
| self->flushing = TRUE; |
| |
| GST_DEBUG_OBJECT (self, "Closed encoder"); |
| |
| return TRUE; |
| } |
| |
| static void |
| gst_amc_video_enc_finalize (GObject * object) |
| { |
| GstAmcVideoEnc *self = GST_AMC_VIDEO_ENC (object); |
| |
| g_mutex_clear (&self->drain_lock); |
| g_cond_clear (&self->drain_cond); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| static GstStateChangeReturn |
| gst_amc_video_enc_change_state (GstElement * element, GstStateChange transition) |
| { |
| GstAmcVideoEnc *self; |
| GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; |
| GError *err = NULL; |
| |
| g_return_val_if_fail (GST_IS_AMC_VIDEO_ENC (element), |
| GST_STATE_CHANGE_FAILURE); |
| self = GST_AMC_VIDEO_ENC (element); |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_NULL_TO_READY: |
| break; |
| case GST_STATE_CHANGE_READY_TO_PAUSED: |
| self->downstream_flow_ret = GST_FLOW_OK; |
| self->draining = FALSE; |
| self->started = FALSE; |
| break; |
| case GST_STATE_CHANGE_PAUSED_TO_PLAYING: |
| break; |
| case GST_STATE_CHANGE_PAUSED_TO_READY: |
| self->flushing = TRUE; |
| gst_amc_codec_flush (self->codec, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| break; |
| default: |
| break; |
| } |
| |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| return ret; |
| |
| ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); |
| |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| return ret; |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_PLAYING_TO_PAUSED: |
| break; |
| case GST_STATE_CHANGE_PAUSED_TO_READY: |
| self->downstream_flow_ret = GST_FLOW_FLUSHING; |
| self->started = FALSE; |
| break; |
| case GST_STATE_CHANGE_READY_TO_NULL: |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| #define MAX_FRAME_DIST_TIME (5 * GST_SECOND) |
| #define MAX_FRAME_DIST_FRAMES (100) |
| |
| static GstVideoCodecFrame * |
| _find_nearest_frame (GstAmcVideoEnc * self, GstClockTime reference_timestamp) |
| { |
| GList *l, *best_l = NULL; |
| GList *finish_frames = NULL; |
| GstVideoCodecFrame *best = NULL; |
| guint64 best_timestamp = 0; |
| guint64 best_diff = G_MAXUINT64; |
| BufferIdentification *best_id = NULL; |
| GList *frames; |
| |
| frames = gst_video_encoder_get_frames (GST_VIDEO_ENCODER (self)); |
| |
| for (l = frames; l; l = l->next) { |
| GstVideoCodecFrame *tmp = l->data; |
| BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp); |
| guint64 timestamp, diff; |
| |
| /* This happens for frames that were just added but |
| * which were not passed to the component yet. Ignore |
| * them here! |
| */ |
| if (!id) |
| continue; |
| |
| timestamp = id->timestamp; |
| |
| if (timestamp > reference_timestamp) |
| diff = timestamp - reference_timestamp; |
| else |
| diff = reference_timestamp - timestamp; |
| |
| if (best == NULL || diff < best_diff) { |
| best = tmp; |
| best_timestamp = timestamp; |
| best_diff = diff; |
| best_l = l; |
| best_id = id; |
| |
| /* For frames without timestamp we simply take the first frame */ |
| if ((reference_timestamp == 0 && timestamp == 0) || diff == 0) |
| break; |
| } |
| } |
| |
| if (best_id) { |
| for (l = frames; l && l != best_l; l = l->next) { |
| GstVideoCodecFrame *tmp = l->data; |
| BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp); |
| guint64 diff_time, diff_frames; |
| |
| if (id->timestamp > best_timestamp) |
| break; |
| |
| if (id->timestamp == 0 || best_timestamp == 0) |
| diff_time = 0; |
| else |
| diff_time = best_timestamp - id->timestamp; |
| diff_frames = best->system_frame_number - tmp->system_frame_number; |
| |
| if (diff_time > MAX_FRAME_DIST_TIME |
| || diff_frames > MAX_FRAME_DIST_FRAMES) { |
| finish_frames = |
| g_list_prepend (finish_frames, gst_video_codec_frame_ref (tmp)); |
| } |
| } |
| } |
| |
| if (finish_frames) { |
| g_warning ("%s: Too old frames, bug in encoder -- please file a bug", |
| GST_ELEMENT_NAME (self)); |
| for (l = finish_frames; l; l = l->next) { |
| gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (self), l->data); |
| } |
| } |
| |
| if (best) |
| gst_video_codec_frame_ref (best); |
| |
| g_list_foreach (frames, (GFunc) gst_video_codec_frame_unref, NULL); |
| g_list_free (frames); |
| |
| return best; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_set_src_caps (GstAmcVideoEnc * self, GstAmcFormat * format) |
| { |
| GstCaps *caps; |
| GstVideoCodecState *output_state; |
| |
| caps = caps_from_amc_format (format); |
| if (!caps) { |
| GST_ERROR_OBJECT (self, "Failed to create output caps"); |
| return FALSE; |
| } |
| |
| /* It may not be proper to reference self->input_state here, |
| * because MediaCodec is an async model -- input_state may change multiple times, |
| * the passed-in MediaFormat may not be the one matched to the current input_state. |
| * |
| * Though, currently, the final src caps only calculate |
| * width/height/pixel-aspect-ratio/framerate/codec_data from self->input_state. |
| * |
| * If input width/height/codec_data change(is_format_change), it will restart |
| * MediaCodec, which means in these cases, self->input_state is matched. |
| */ |
| output_state = gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (self), |
| caps, self->input_state); |
| gst_video_codec_state_unref (output_state); |
| |
| if (!gst_video_encoder_negotiate (GST_VIDEO_ENCODER (self))) |
| return FALSE; |
| |
| return TRUE; |
| } |
| |
| /* The weird handling of cropping, alignment and everything is taken from |
| * platform/frameworks/media/libstagefright/colorconversion/ColorConversion.cpp |
| */ |
| static gboolean |
| gst_amc_video_enc_fill_buffer (GstAmcVideoEnc * self, GstBuffer * inbuf, |
| GstAmcBuffer * outbuf, const GstAmcBufferInfo * buffer_info) |
| { |
| GstVideoCodecState *input_state = self->input_state; |
| /* The fill_buffer runs in the same thread as set_format? |
| * then we can use state->info safely */ |
| GstVideoInfo *info = &input_state->info; |
| |
| if (buffer_info->size < self->color_format_info.frame_size) |
| return FALSE; |
| |
| return gst_amc_color_format_copy (&self->color_format_info, outbuf, |
| buffer_info, info, inbuf, COLOR_FORMAT_COPY_IN); |
| } |
| |
| static GstFlowReturn |
| gst_amc_video_enc_handle_output_frame (GstAmcVideoEnc * self, |
| GstAmcBuffer * buf, const GstAmcBufferInfo * buffer_info, |
| GstVideoCodecFrame * frame) |
| { |
| GstFlowReturn flow_ret = GST_FLOW_OK; |
| GstVideoEncoder *encoder = GST_VIDEO_ENCODER_CAST (self); |
| |
| /* The BUFFER_FLAG_CODEC_CONFIG logic is borrowed from |
| * gst-omx. see *_handle_output_frame in |
| * gstomxvideoenc.c and gstomxh264enc.c */ |
| if ((buffer_info->flags & BUFFER_FLAG_CODEC_CONFIG) |
| && buffer_info->size > 0) { |
| GstStructure *s; |
| GstVideoCodecState *state; |
| |
| state = gst_video_encoder_get_output_state (encoder); |
| s = gst_caps_get_structure (state->caps, 0); |
| if (!strcmp (gst_structure_get_name (s), "video/x-h264")) { |
| gst_video_codec_state_unref (state); |
| |
| if (buffer_info->size > 4 && |
| GST_READ_UINT32_BE (buf->data + buffer_info->offset) == 0x00000001) { |
| GList *l = NULL; |
| GstBuffer *hdrs; |
| |
| GST_DEBUG_OBJECT (self, "got codecconfig in byte-stream format"); |
| |
| hdrs = gst_buffer_new_and_alloc (buffer_info->size); |
| gst_buffer_fill (hdrs, 0, buf->data + buffer_info->offset, |
| buffer_info->size); |
| |
| l = g_list_append (l, hdrs); |
| gst_video_encoder_set_headers (encoder, l); |
| } |
| } else { |
| GstBuffer *codec_data; |
| |
| GST_DEBUG_OBJECT (self, "Handling codec data"); |
| |
| codec_data = gst_buffer_new_and_alloc (buffer_info->size); |
| gst_buffer_fill (codec_data, 0, buf->data + buffer_info->offset, |
| buffer_info->size); |
| state->codec_data = codec_data; |
| gst_video_codec_state_unref (state); |
| |
| if (!gst_video_encoder_negotiate (encoder)) { |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_NOT_NEGOTIATED; |
| } |
| |
| return GST_FLOW_OK; |
| } |
| } |
| |
| if (buffer_info->size > 0) { |
| GstBuffer *out_buf; |
| GstPad *srcpad; |
| |
| srcpad = GST_VIDEO_ENCODER_SRC_PAD (encoder); |
| out_buf = |
| gst_video_encoder_allocate_output_buffer (encoder, buffer_info->size); |
| gst_buffer_fill (out_buf, 0, buf->data + buffer_info->offset, |
| buffer_info->size); |
| |
| GST_BUFFER_PTS (out_buf) = |
| gst_util_uint64_scale (buffer_info->presentation_time_us, GST_USECOND, |
| 1); |
| |
| if (frame) { |
| frame->output_buffer = out_buf; |
| flow_ret = gst_video_encoder_finish_frame (encoder, frame); |
| } else { |
| /* This sometimes happens at EOS or if the input is not properly framed, |
| * let's handle it gracefully by allocating a new buffer for the current |
| * caps and filling it |
| */ |
| |
| GST_ERROR_OBJECT (self, "No corresponding frame found"); |
| flow_ret = gst_pad_push (srcpad, out_buf); |
| } |
| } else if (frame) { |
| flow_ret = gst_video_encoder_finish_frame (encoder, frame); |
| } |
| |
| return flow_ret; |
| } |
| |
| static void |
| gst_amc_video_enc_loop (GstAmcVideoEnc * self) |
| { |
| GstVideoCodecFrame *frame; |
| GstFlowReturn flow_ret = GST_FLOW_OK; |
| gboolean is_eos; |
| GstAmcBufferInfo buffer_info; |
| GstAmcBuffer *buf; |
| gint idx; |
| GError *err = NULL; |
| |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| |
| retry: |
| GST_DEBUG_OBJECT (self, "Waiting for available output buffer"); |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| /* Wait at most 100ms here, some codecs don't fail dequeueing if |
| * the codec is flushing, causing deadlocks during shutdown */ |
| idx = |
| gst_amc_codec_dequeue_output_buffer (self->codec, &buffer_info, 100000, |
| &err); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| /*} */ |
| |
| if (idx < 0 || self->amc_format) { |
| if (self->flushing) { |
| g_clear_error (&err); |
| goto flushing; |
| } |
| |
| /* The comments from https://android.googlesource.com/platform/cts/+/android-4.3_r3.1/tests/tests/media/src/android/media/cts/EncodeDecodeTest.java |
| * line 539 says INFO_OUTPUT_FORMAT_CHANGED is not expected for an encoder |
| */ |
| if (self->amc_format || idx == INFO_OUTPUT_FORMAT_CHANGED) { |
| GstAmcFormat *format; |
| gchar *format_string; |
| |
| GST_DEBUG_OBJECT (self, "Output format has changed"); |
| |
| format = (idx == INFO_OUTPUT_FORMAT_CHANGED) ? |
| gst_amc_codec_get_output_format (self->codec, |
| &err) : self->amc_format; |
| if (err) { |
| format = self->amc_format; |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| } |
| |
| if (self->amc_format) { |
| if (format != self->amc_format) |
| gst_amc_format_free (self->amc_format); |
| self->amc_format = NULL; |
| } |
| |
| if (!format) |
| goto format_error; |
| |
| format_string = gst_amc_format_to_string (format, &err); |
| if (err) { |
| gst_amc_format_free (format); |
| goto format_error; |
| } |
| GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string); |
| g_free (format_string); |
| |
| if (!gst_amc_video_enc_set_src_caps (self, format)) { |
| gst_amc_format_free (format); |
| goto format_error; |
| } |
| |
| gst_amc_format_free (format); |
| |
| if (idx >= 0) |
| goto process_buffer; |
| |
| goto retry; |
| } |
| |
| switch (idx) { |
| case INFO_OUTPUT_BUFFERS_CHANGED: |
| /* Handled internally */ |
| g_assert_not_reached (); |
| break; |
| case INFO_TRY_AGAIN_LATER: |
| GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out"); |
| goto retry; |
| break; |
| case G_MININT: |
| GST_ERROR_OBJECT (self, "Failure dequeueing input buffer"); |
| goto dequeue_error; |
| break; |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| goto retry; |
| } |
| |
| process_buffer: |
| GST_DEBUG_OBJECT (self, |
| "Got output buffer at index %d: size %d time %" G_GINT64_FORMAT |
| " flags 0x%08x", idx, buffer_info.size, buffer_info.presentation_time_us, |
| buffer_info.flags); |
| |
| frame = |
| _find_nearest_frame (self, |
| gst_util_uint64_scale (buffer_info.presentation_time_us, GST_USECOND, 1)); |
| |
| is_eos = ! !(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM); |
| |
| buf = gst_amc_codec_get_output_buffer (self->codec, idx, &err); |
| if (err) |
| goto failed_to_get_output_buffer; |
| else if (!buf) |
| goto got_null_output_buffer; |
| |
| flow_ret = |
| gst_amc_video_enc_handle_output_frame (self, buf, &buffer_info, frame); |
| |
| gst_amc_buffer_free (buf); |
| buf = NULL; |
| |
| if (!gst_amc_codec_release_output_buffer (self->codec, idx, FALSE, &err)) { |
| if (self->flushing) { |
| g_clear_error (&err); |
| goto flushing; |
| } |
| goto failed_release; |
| } |
| |
| if (is_eos || flow_ret == GST_FLOW_EOS) { |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| if (self->draining) { |
| GST_DEBUG_OBJECT (self, "Drained"); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| } else if (flow_ret == GST_FLOW_OK) { |
| GST_DEBUG_OBJECT (self, "Component signalled EOS"); |
| flow_ret = GST_FLOW_EOS; |
| } |
| g_mutex_unlock (&self->drain_lock); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| } else { |
| GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret)); |
| } |
| |
| self->downstream_flow_ret = flow_ret; |
| |
| if (flow_ret != GST_FLOW_OK) |
| goto flow_error; |
| |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| |
| return; |
| |
| dequeue_error: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_ERROR; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| |
| format_error: |
| { |
| if (err) |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| else |
| GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), |
| ("Failed to handle format")); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_ERROR; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| failed_release: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_ERROR; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| flushing: |
| { |
| GST_DEBUG_OBJECT (self, "Flushing -- stopping task"); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_FLUSHING; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| return; |
| } |
| |
| flow_error: |
| { |
| if (flow_ret == GST_FLOW_EOS) { |
| GST_DEBUG_OBJECT (self, "EOS"); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), |
| gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| } else if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_EOS) { |
| GST_ELEMENT_ERROR (self, STREAM, FAILED, |
| ("Internal data stream error."), ("stream stopped, reason %s", |
| gst_flow_get_name (flow_ret))); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), |
| gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| } |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| |
| failed_to_get_output_buffer: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_ERROR; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| |
| got_null_output_buffer: |
| { |
| GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), |
| ("Got no output buffer")); |
| gst_pad_push_event (GST_VIDEO_ENCODER_SRC_PAD (self), gst_event_new_eos ()); |
| gst_pad_pause_task (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| self->downstream_flow_ret = GST_FLOW_ERROR; |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| return; |
| } |
| } |
| |
| static gboolean |
| gst_amc_video_enc_start (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| self->last_upstream_ts = 0; |
| self->drained = TRUE; |
| self->downstream_flow_ret = GST_FLOW_OK; |
| self->started = FALSE; |
| self->flushing = TRUE; |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_stop (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self; |
| GError *err = NULL; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| GST_DEBUG_OBJECT (self, "Stopping encoder"); |
| self->flushing = TRUE; |
| if (self->started) { |
| gst_amc_codec_flush (self->codec, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| gst_amc_codec_stop (self->codec, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| self->started = FALSE; |
| } |
| gst_pad_stop_task (GST_VIDEO_ENCODER_SRC_PAD (encoder)); |
| |
| self->downstream_flow_ret = GST_FLOW_FLUSHING; |
| self->drained = TRUE; |
| g_mutex_lock (&self->drain_lock); |
| self->draining = FALSE; |
| g_cond_broadcast (&self->drain_cond); |
| g_mutex_unlock (&self->drain_lock); |
| if (self->input_state) |
| gst_video_codec_state_unref (self->input_state); |
| self->input_state = NULL; |
| |
| if (self->amc_format) { |
| gst_amc_format_free (self->amc_format); |
| self->amc_format = NULL; |
| } |
| |
| GST_DEBUG_OBJECT (self, "Stopped encoder"); |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_set_format (GstVideoEncoder * encoder, |
| GstVideoCodecState * state) |
| { |
| GstAmcVideoEnc *self; |
| GstAmcFormat *format = NULL; |
| GstCaps *allowed_caps = NULL; |
| gboolean is_format_change = FALSE; |
| gboolean needs_disable = FALSE; |
| gchar *format_string; |
| gboolean r = FALSE; |
| GError *err = NULL; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| |
| GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, state->caps); |
| |
| /* Check if the caps change is a real format change or if only irrelevant |
| * parts of the caps have changed or nothing at all. |
| */ |
| is_format_change |= self->color_format_info.width != state->info.width; |
| is_format_change |= self->color_format_info.height != state->info.height; |
| needs_disable = self->started; |
| |
| /* If the component is not started and a real format change happens |
| * we have to restart the component. If no real format change |
| * happened we can just exit here. |
| */ |
| if (needs_disable && !is_format_change) { |
| |
| /* Framerate or something minor changed */ |
| if (self->input_state) |
| gst_video_codec_state_unref (self->input_state); |
| self->input_state = gst_video_codec_state_ref (state); |
| GST_DEBUG_OBJECT (self, |
| "Already running and caps did not change the format"); |
| return TRUE; |
| } |
| |
| if (needs_disable && is_format_change) { |
| gst_amc_video_enc_drain (self); |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| gst_amc_video_enc_stop (GST_VIDEO_ENCODER (self)); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| gst_amc_video_enc_close (GST_VIDEO_ENCODER (self)); |
| if (!gst_amc_video_enc_open (GST_VIDEO_ENCODER (self))) { |
| GST_ERROR_OBJECT (self, "Failed to open codec again"); |
| return FALSE; |
| } |
| |
| if (!gst_amc_video_enc_start (GST_VIDEO_ENCODER (self))) { |
| GST_ERROR_OBJECT (self, "Failed to start codec again"); |
| } |
| } |
| /* srcpad task is not running at this point */ |
| if (self->input_state) |
| gst_video_codec_state_unref (self->input_state); |
| self->input_state = NULL; |
| |
| GST_DEBUG_OBJECT (self, "picking an output format ..."); |
| allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder)); |
| if (!allowed_caps) { |
| GST_DEBUG_OBJECT (self, "... but no peer, using template caps"); |
| allowed_caps = |
| gst_pad_get_pad_template_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder)); |
| } |
| GST_DEBUG_OBJECT (self, "chose caps %" GST_PTR_FORMAT, allowed_caps); |
| allowed_caps = gst_caps_truncate (allowed_caps); |
| |
| format = create_amc_format (self, state, allowed_caps); |
| if (!format) |
| goto quit; |
| |
| format_string = gst_amc_format_to_string (format, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| GST_DEBUG_OBJECT (self, "Configuring codec with format: %s", |
| GST_STR_NULL (format_string)); |
| g_free (format_string); |
| |
| if (!gst_amc_codec_configure (self->codec, format, NULL, 1, &err)) { |
| GST_ERROR_OBJECT (self, "Failed to configure codec"); |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| goto quit; |
| } |
| |
| if (!gst_amc_codec_start (self->codec, &err)) { |
| GST_ERROR_OBJECT (self, "Failed to start codec"); |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| goto quit; |
| } |
| |
| self->amc_format = format; |
| format = NULL; |
| |
| self->input_state = gst_video_codec_state_ref (state); |
| |
| self->started = TRUE; |
| |
| /* Start the srcpad loop again */ |
| self->flushing = FALSE; |
| self->downstream_flow_ret = GST_FLOW_OK; |
| gst_pad_start_task (GST_VIDEO_ENCODER_SRC_PAD (self), |
| (GstTaskFunction) gst_amc_video_enc_loop, encoder, NULL); |
| |
| r = TRUE; |
| |
| quit: |
| if (allowed_caps) |
| gst_caps_unref (allowed_caps); |
| |
| if (format) |
| gst_amc_format_free (format); |
| |
| return r; |
| } |
| |
| static gboolean |
| gst_amc_video_enc_flush (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self; |
| GError *err = NULL; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| |
| GST_DEBUG_OBJECT (self, "Flushing encoder"); |
| |
| if (!self->started) { |
| GST_DEBUG_OBJECT (self, "Codec not started yet"); |
| return TRUE; |
| } |
| |
| self->flushing = TRUE; |
| gst_amc_codec_flush (self->codec, &err); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| |
| /* Wait until the srcpad loop is finished, |
| * unlock GST_VIDEO_ENCODER_STREAM_LOCK to prevent deadlocks |
| * caused by using this lock from inside the loop function */ |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| GST_PAD_STREAM_LOCK (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| GST_PAD_STREAM_UNLOCK (GST_VIDEO_ENCODER_SRC_PAD (self)); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| self->flushing = FALSE; |
| |
| /* Start the srcpad loop again */ |
| self->last_upstream_ts = 0; |
| self->drained = TRUE; |
| self->downstream_flow_ret = GST_FLOW_OK; |
| gst_pad_start_task (GST_VIDEO_ENCODER_SRC_PAD (self), |
| (GstTaskFunction) gst_amc_video_enc_loop, encoder, NULL); |
| |
| GST_DEBUG_OBJECT (self, "Flush encoder"); |
| |
| return TRUE; |
| } |
| |
| static GstFlowReturn |
| gst_amc_video_enc_handle_frame (GstVideoEncoder * encoder, |
| GstVideoCodecFrame * frame) |
| { |
| GstAmcVideoEnc *self; |
| gint idx; |
| GstAmcBuffer *buf; |
| GstAmcBufferInfo buffer_info; |
| GstClockTime timestamp, duration, timestamp_offset = 0; |
| BufferIdentification *id; |
| GError *err = NULL; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| |
| GST_DEBUG_OBJECT (self, "Handling frame"); |
| |
| if (!self->started) { |
| GST_ERROR_OBJECT (self, "Codec not started yet"); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_NOT_NEGOTIATED; |
| } |
| |
| if (self->flushing) |
| goto flushing; |
| |
| if (self->downstream_flow_ret != GST_FLOW_OK) |
| goto downstream_error; |
| |
| timestamp = frame->pts; |
| duration = frame->duration; |
| |
| again: |
| /* Make sure to release the base class stream lock, otherwise |
| * _loop() can't call _finish_frame() and we might block forever |
| * because no input buffers are released */ |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| /* Wait at most 100ms here, some codecs don't fail dequeueing if |
| * the codec is flushing, causing deadlocks during shutdown */ |
| idx = gst_amc_codec_dequeue_input_buffer (self->codec, 100000, &err); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| |
| if (idx < 0) { |
| if (self->flushing || self->downstream_flow_ret == GST_FLOW_FLUSHING) { |
| g_clear_error (&err); |
| goto flushing; |
| } |
| |
| switch (idx) { |
| case INFO_TRY_AGAIN_LATER: |
| GST_DEBUG_OBJECT (self, "Dequeueing input buffer timed out"); |
| goto again; /* next try */ |
| break; |
| case G_MININT: |
| GST_ERROR_OBJECT (self, "Failed to dequeue input buffer"); |
| goto dequeue_error; |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| goto again; |
| } |
| |
| if (self->flushing) { |
| memset (&buffer_info, 0, sizeof (buffer_info)); |
| gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, NULL); |
| goto flushing; |
| } |
| |
| if (self->downstream_flow_ret != GST_FLOW_OK) { |
| memset (&buffer_info, 0, sizeof (buffer_info)); |
| gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, &err); |
| if (err && !self->flushing) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| g_clear_error (&err); |
| goto downstream_error; |
| } |
| |
| /* Now handle the frame */ |
| |
| /* Copy the buffer content in chunks of size as requested |
| * by the port */ |
| buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err); |
| if (err) |
| goto failed_to_get_input_buffer; |
| else if (!buf) |
| goto got_null_input_buffer; |
| |
| memset (&buffer_info, 0, sizeof (buffer_info)); |
| buffer_info.offset = 0; |
| buffer_info.size = MIN (self->color_format_info.frame_size, buf->size); |
| gst_amc_buffer_set_position_and_limit (buf, NULL, buffer_info.offset, |
| buffer_info.size); |
| |
| if (!gst_amc_video_enc_fill_buffer (self, frame->input_buffer, buf, |
| &buffer_info)) { |
| memset (&buffer_info, 0, sizeof (buffer_info)); |
| gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, &err); |
| if (err && !self->flushing) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| g_clear_error (&err); |
| gst_amc_buffer_free (buf); |
| buf = NULL; |
| goto buffer_fill_error; |
| } |
| |
| gst_amc_buffer_free (buf); |
| buf = NULL; |
| |
| if (timestamp != GST_CLOCK_TIME_NONE) { |
| buffer_info.presentation_time_us = |
| gst_util_uint64_scale (timestamp + timestamp_offset, 1, GST_USECOND); |
| self->last_upstream_ts = timestamp + timestamp_offset; |
| } |
| if (duration != GST_CLOCK_TIME_NONE) |
| self->last_upstream_ts += duration; |
| |
| id = buffer_identification_new (timestamp + timestamp_offset); |
| if (GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (frame)) |
| buffer_info.flags |= BUFFER_FLAG_SYNC_FRAME; |
| gst_video_codec_frame_set_user_data (frame, id, |
| (GDestroyNotify) buffer_identification_free); |
| |
| GST_DEBUG_OBJECT (self, |
| "Queueing buffer %d: size %d time %" G_GINT64_FORMAT " flags 0x%08x", |
| idx, buffer_info.size, buffer_info.presentation_time_us, |
| buffer_info.flags); |
| if (!gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, &err)) { |
| if (self->flushing) { |
| g_clear_error (&err); |
| goto flushing; |
| } |
| goto queue_error; |
| } |
| |
| self->drained = FALSE; |
| |
| gst_video_codec_frame_unref (frame); |
| |
| return self->downstream_flow_ret; |
| |
| downstream_error: |
| { |
| GST_ERROR_OBJECT (self, "Downstream returned %s", |
| gst_flow_get_name (self->downstream_flow_ret)); |
| |
| gst_video_codec_frame_unref (frame); |
| return self->downstream_flow_ret; |
| } |
| failed_to_get_input_buffer: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_ERROR; |
| } |
| got_null_input_buffer: |
| { |
| GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), |
| ("Got no input buffer")); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_ERROR; |
| } |
| buffer_fill_error: |
| { |
| GST_ELEMENT_ERROR (self, RESOURCE, WRITE, (NULL), |
| ("Failed to write input into the amc buffer(write %dB to a %" |
| G_GSIZE_FORMAT "B buffer)", self->color_format_info.frame_size, |
| buf->size)); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_ERROR; |
| } |
| dequeue_error: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_ERROR; |
| } |
| queue_error: |
| { |
| GST_ELEMENT_ERROR_FROM_ERROR (self, err); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_ERROR; |
| } |
| flushing: |
| { |
| GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING"); |
| gst_video_codec_frame_unref (frame); |
| return GST_FLOW_FLUSHING; |
| } |
| } |
| |
| static GstFlowReturn |
| gst_amc_video_enc_finish (GstVideoEncoder * encoder) |
| { |
| GstAmcVideoEnc *self; |
| |
| self = GST_AMC_VIDEO_ENC (encoder); |
| |
| return gst_amc_video_enc_drain (self); |
| } |
| |
| static GstFlowReturn |
| gst_amc_video_enc_drain (GstAmcVideoEnc * self) |
| { |
| GstFlowReturn ret; |
| gint idx; |
| GError *err = NULL; |
| |
| GST_DEBUG_OBJECT (self, "Draining codec"); |
| if (!self->started) { |
| GST_DEBUG_OBJECT (self, "Codec not started yet"); |
| return GST_FLOW_OK; |
| } |
| |
| /* Don't send drain buffer twice, this doesn't work */ |
| if (self->drained) { |
| GST_DEBUG_OBJECT (self, "Codec is drained already"); |
| return GST_FLOW_OK; |
| } |
| |
| /* Make sure to release the base class stream lock, otherwise |
| * _loop() can't call _finish_frame() and we might block forever |
| * because no input buffers are released */ |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| /* Send an EOS buffer to the component and let the base |
| * class drop the EOS event. We will send it later when |
| * the EOS buffer arrives on the output port. |
| * Wait at most 0.5s here. */ |
| idx = gst_amc_codec_dequeue_input_buffer (self->codec, 500000, &err); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| |
| if (idx >= 0) { |
| GstAmcBuffer *buf; |
| GstAmcBufferInfo buffer_info; |
| |
| buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err); |
| if (buf) { |
| GST_VIDEO_ENCODER_STREAM_UNLOCK (self); |
| g_mutex_lock (&self->drain_lock); |
| self->draining = TRUE; |
| |
| memset (&buffer_info, 0, sizeof (buffer_info)); |
| buffer_info.size = 0; |
| buffer_info.presentation_time_us = |
| gst_util_uint64_scale (self->last_upstream_ts, 1, GST_USECOND); |
| buffer_info.flags |= BUFFER_FLAG_END_OF_STREAM; |
| |
| gst_amc_buffer_set_position_and_limit (buf, NULL, 0, 0); |
| gst_amc_buffer_free (buf); |
| buf = NULL; |
| |
| if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, |
| &err)) { |
| GST_DEBUG_OBJECT (self, "Waiting until codec is drained"); |
| g_cond_wait (&self->drain_cond, &self->drain_lock); |
| GST_DEBUG_OBJECT (self, "Drained codec"); |
| ret = GST_FLOW_OK; |
| } else { |
| GST_ERROR_OBJECT (self, "Failed to queue input buffer"); |
| if (self->flushing) { |
| g_clear_error (&err); |
| ret = GST_FLOW_FLUSHING; |
| } else { |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| ret = GST_FLOW_ERROR; |
| } |
| } |
| |
| self->drained = TRUE; |
| self->draining = FALSE; |
| g_mutex_unlock (&self->drain_lock); |
| GST_VIDEO_ENCODER_STREAM_LOCK (self); |
| } else { |
| GST_ERROR_OBJECT (self, "Failed to get buffer for EOS: %d", idx); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| ret = GST_FLOW_ERROR; |
| } |
| } else { |
| GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx); |
| if (err) |
| GST_ELEMENT_WARNING_FROM_ERROR (self, err); |
| ret = GST_FLOW_ERROR; |
| } |
| |
| return ret; |
| } |