| /* GStreamer |
| * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org> |
| * |
| * gstaudioparse.c: |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| /** |
| * SECTION:element-audioparse |
| * |
| * Converts a byte stream into audio frames. |
| * |
| * <note>This element is deprecated. Use #GstRawAudioParse instead.</note> |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| /* FIXME 0.11: suppress warnings for deprecated API such as g_value_array stuff |
| * for now with newer GLib versions (>= 2.31.0) */ |
| #define GLIB_DISABLE_DEPRECATION_WARNINGS |
| |
| #include <gst/gst.h> |
| #include <gst/audio/audio.h> |
| #include "gstaudioparse.h" |
| #include "gstrawaudioparse.h" |
| #include "unalignedaudio.h" |
| |
| #include <string.h> |
| |
| |
| static GstStaticPadTemplate static_sink_template = |
| GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS_ANY); |
| |
| |
| static GstStaticPadTemplate static_src_template = |
| GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL) |
| ", layout = (string) { interleaved, non-interleaved }; " |
| GST_UNALIGNED_RAW_AUDIO_CAPS "; " |
| "audio/x-alaw, rate=(int)[1,MAX], channels=(int)[1,MAX]; " |
| "audio/x-mulaw, rate=(int)[1,MAX], channels=(int)[1,MAX]") |
| ); |
| |
| |
| typedef enum |
| { |
| GST_AUDIO_PARSE_FORMAT_RAW, |
| GST_AUDIO_PARSE_FORMAT_MULAW, |
| GST_AUDIO_PARSE_FORMAT_ALAW |
| } GstAudioParseFormat; |
| |
| static void gst_audio_parse_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_audio_parse_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_audio_parse_debug); |
| #define GST_CAT_DEFAULT gst_audio_parse_debug |
| |
| enum |
| { |
| PROP_0, |
| PROP_FORMAT, |
| PROP_RAW_FORMAT, |
| PROP_RATE, |
| PROP_CHANNELS, |
| PROP_INTERLEAVED, |
| PROP_CHANNEL_POSITIONS, |
| PROP_USE_SINK_CAPS |
| }; |
| |
| #define GST_AUDIO_PARSE_FORMAT (gst_audio_parse_format_get_type ()) |
| static GType |
| gst_audio_parse_format_get_type (void) |
| { |
| static GType audio_parse_format_type = 0; |
| static const GEnumValue format_types[] = { |
| {GST_AUDIO_PARSE_FORMAT_RAW, "Raw", "raw"}, |
| {GST_AUDIO_PARSE_FORMAT_ALAW, "A-Law", "alaw"}, |
| {GST_AUDIO_PARSE_FORMAT_MULAW, "\302\265-Law", "mulaw"}, |
| {0, NULL, NULL} |
| }; |
| |
| if (!audio_parse_format_type) { |
| audio_parse_format_type = |
| g_enum_register_static ("GstAudioParseFormat", format_types); |
| } |
| |
| return audio_parse_format_type; |
| } |
| |
| |
| #define gst_audio_parse_parent_class parent_class |
| G_DEFINE_TYPE (GstAudioParse, gst_audio_parse, GST_TYPE_BIN); |
| |
| static void |
| gst_audio_parse_class_init (GstAudioParseClass * klass) |
| { |
| GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
| GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); |
| |
| gobject_class->set_property = gst_audio_parse_set_property; |
| gobject_class->get_property = gst_audio_parse_get_property; |
| |
| g_object_class_install_property (gobject_class, PROP_FORMAT, |
| g_param_spec_enum ("format", "Format", |
| "Format of audio samples in raw stream", GST_AUDIO_PARSE_FORMAT, |
| GST_AUDIO_PARSE_FORMAT_RAW, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_RAW_FORMAT, |
| g_param_spec_enum ("raw-format", "Raw Format", |
| "Format of audio samples in raw stream", GST_TYPE_AUDIO_FORMAT, |
| GST_AUDIO_FORMAT_S16, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_RATE, |
| g_param_spec_int ("rate", "Rate", "Rate of audio samples in raw stream", |
| 1, INT_MAX, 44100, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_CHANNELS, |
| g_param_spec_int ("channels", "Channels", |
| "Number of channels in raw stream", 1, 64, 2, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_INTERLEAVED, |
| g_param_spec_boolean ("interleaved", "Interleaved Layout", |
| "True if audio has interleaved layout", TRUE, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_CHANNEL_POSITIONS, |
| g_param_spec_value_array ("channel-positions", "Channel positions", |
| "Channel positions used on the output", |
| g_param_spec_enum ("channel-position", "Channel position", |
| "Channel position of the n-th input", |
| GST_TYPE_AUDIO_CHANNEL_POSITION, |
| GST_AUDIO_CHANNEL_POSITION_NONE, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS), |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_USE_SINK_CAPS, |
| g_param_spec_boolean ("use-sink-caps", "Use sink caps", |
| "Use the sink caps for the format, only performing timestamping", |
| FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| gst_element_class_set_static_metadata (gstelement_class, "Audio Parse", |
| "Filter/Audio", |
| "Converts stream into audio frames (deprecated: use rawaudioparse instead)", |
| "Sebastian Dröge <sebastian.droege@collabora.co.uk>"); |
| |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&static_sink_template)); |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&static_src_template)); |
| |
| GST_DEBUG_CATEGORY_INIT (gst_audio_parse_debug, "audioparse", 0, |
| "audioparse element"); |
| } |
| |
| static void |
| gst_audio_parse_init (GstAudioParse * ap) |
| { |
| GstPad *inner_pad; |
| GstPad *ghostpad; |
| |
| ap->rawaudioparse = |
| gst_element_factory_make ("rawaudioparse", "inner_rawaudioparse"); |
| g_assert (ap->rawaudioparse != NULL); |
| |
| gst_bin_add (GST_BIN (ap), ap->rawaudioparse); |
| |
| inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "sink"); |
| ghostpad = |
| gst_ghost_pad_new_from_template ("sink", inner_pad, |
| gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "sink")); |
| gst_element_add_pad (GST_ELEMENT (ap), ghostpad); |
| gst_object_unref (GST_OBJECT (inner_pad)); |
| |
| inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "src"); |
| ghostpad = |
| gst_ghost_pad_new_from_template ("src", inner_pad, |
| gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "src")); |
| gst_element_add_pad (GST_ELEMENT (ap), ghostpad); |
| gst_object_unref (GST_OBJECT (inner_pad)); |
| } |
| |
| static void |
| gst_audio_parse_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstAudioParse *ap = GST_AUDIO_PARSE (object); |
| |
| switch (prop_id) { |
| case PROP_FORMAT:{ |
| GstRawAudioParseFormat raw_parse_format; |
| |
| switch (g_value_get_enum (value)) { |
| case GST_AUDIO_PARSE_FORMAT_RAW: |
| raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_PCM; |
| break; |
| |
| case GST_AUDIO_PARSE_FORMAT_MULAW: |
| raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_MULAW; |
| break; |
| |
| case GST_AUDIO_PARSE_FORMAT_ALAW: |
| raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_ALAW; |
| break; |
| |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| g_object_set (G_OBJECT (ap->rawaudioparse), "format", raw_parse_format, |
| NULL); |
| |
| break; |
| } |
| |
| case PROP_RAW_FORMAT: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "pcm-format", |
| g_value_get_enum (value), NULL); |
| break; |
| |
| case PROP_RATE: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "sample-rate", |
| g_value_get_int (value), NULL); |
| break; |
| |
| case PROP_CHANNELS: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "num-channels", |
| g_value_get_int (value), NULL); |
| break; |
| |
| case PROP_INTERLEAVED: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "interleaved", |
| g_value_get_boolean (value), NULL); |
| break; |
| |
| case PROP_CHANNEL_POSITIONS: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "channel-positions", |
| g_value_get_boxed (value), NULL); |
| break; |
| |
| case PROP_USE_SINK_CAPS: |
| g_object_set (G_OBJECT (ap->rawaudioparse), "use-sink-caps", |
| g_value_get_boolean (value), NULL); |
| break; |
| |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_audio_parse_get_property (GObject * object, guint prop_id, GValue * value, |
| GParamSpec * pspec) |
| { |
| GstAudioParse *ap = GST_AUDIO_PARSE (object); |
| |
| switch (prop_id) { |
| case PROP_FORMAT:{ |
| GstRawAudioParseFormat raw_parse_format; |
| GstAudioParseFormat format; |
| |
| g_object_get (G_OBJECT (ap->rawaudioparse), "format", &raw_parse_format, |
| NULL); |
| |
| switch (raw_parse_format) { |
| case GST_RAW_AUDIO_PARSE_FORMAT_PCM: |
| format = GST_AUDIO_PARSE_FORMAT_RAW; |
| break; |
| |
| case GST_RAW_AUDIO_PARSE_FORMAT_MULAW: |
| format = GST_AUDIO_PARSE_FORMAT_MULAW; |
| break; |
| |
| case GST_RAW_AUDIO_PARSE_FORMAT_ALAW: |
| format = GST_AUDIO_PARSE_FORMAT_ALAW; |
| break; |
| |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| g_value_set_enum (value, format); |
| |
| break; |
| } |
| |
| case PROP_RAW_FORMAT:{ |
| GstAudioFormat format; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "pcm-format", &format, NULL); |
| g_value_set_enum (value, format); |
| break; |
| } |
| |
| case PROP_RATE:{ |
| gint sample_rate; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "sample-rate", &sample_rate, |
| NULL); |
| g_value_set_int (value, sample_rate); |
| break; |
| } |
| |
| case PROP_CHANNELS:{ |
| gint num_channels; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "num-channels", &num_channels, |
| NULL); |
| g_value_set_int (value, num_channels); |
| break; |
| } |
| |
| case PROP_INTERLEAVED:{ |
| gboolean interleaved; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "interleaved", &interleaved, |
| NULL); |
| g_value_set_boolean (value, interleaved); |
| break; |
| } |
| |
| case PROP_CHANNEL_POSITIONS:{ |
| gpointer channel_positions; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "channel-positions", |
| &channel_positions, NULL); |
| g_value_set_boxed (value, channel_positions); |
| break; |
| } |
| |
| case PROP_USE_SINK_CAPS:{ |
| gboolean use_sink_caps; |
| g_object_get (G_OBJECT (ap->rawaudioparse), "use-sink-caps", |
| &use_sink_caps, NULL); |
| g_value_set_boolean (value, use_sink_caps); |
| break; |
| } |
| |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |