gstreamer/sys/androidmedia/gstamcaudiodec.c

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/*
* Initially based on gst-omx/omx/gstomxvideodec.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>
*
* 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 <gst/audio/multichannel.h>
#include <string.h>
#ifdef HAVE_ORC
#include <orc/orc.h>
#else
#define orc_memcpy memcpy
#endif
#include "gstamcaudiodec.h"
#include "gstamc-constants.h"
GST_DEBUG_CATEGORY_STATIC (gst_amc_audio_dec_debug_category);
#define GST_CAT_DEFAULT gst_amc_audio_dec_debug_category
/* prototypes */
static void gst_amc_audio_dec_finalize (GObject * object);
static GstStateChangeReturn
gst_amc_audio_dec_change_state (GstElement * element,
GstStateChange transition);
static gboolean gst_amc_audio_dec_open (GstAudioDecoder * decoder);
static gboolean gst_amc_audio_dec_close (GstAudioDecoder * decoder);
static gboolean gst_amc_audio_dec_start (GstAudioDecoder * decoder);
static gboolean gst_amc_audio_dec_stop (GstAudioDecoder * decoder);
static gboolean gst_amc_audio_dec_set_format (GstAudioDecoder * decoder,
GstCaps * caps);
static void gst_amc_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard);
static GstFlowReturn gst_amc_audio_dec_handle_frame (GstAudioDecoder * decoder,
GstBuffer * buffer);
static GstFlowReturn gst_amc_audio_dec_drain (GstAmcAudioDec * self);
enum
{
PROP_0
};
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_amc_audio_dec_debug_category, "amcaudiodec", 0, \
"Android MediaCodec audio decoder");
GST_BOILERPLATE_FULL (GstAmcAudioDec, gst_amc_audio_dec, GstAudioDecoder,
GST_TYPE_AUDIO_DECODER, DEBUG_INIT);
static GstCaps *
create_sink_caps (const GstAmcCodecInfo * codec_info)
{
GstCaps *ret;
gint i;
ret = gst_caps_new_empty ();
for (i = 0; i < codec_info->n_supported_types; i++) {
const GstAmcCodecType *type = &codec_info->supported_types[i];
if (strcmp (type->mime, "audio/mpeg") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1,
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"parsed", G_TYPE_BOOLEAN, TRUE, NULL);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/3gpp") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/AMR",
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/amr-wb") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/AMR-WB",
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/mp4a-latm") == 0) {
gint j;
GstStructure *tmp, *tmp2;
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");
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gst_value_list_append_value (&va, &v);
g_value_set_string (&v, "adts");
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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);
gst_caps_merge_structure (ret, tmp2);
have_profile = TRUE;
}
if (!have_profile) {
gst_caps_merge_structure (ret, tmp);
} else {
gst_structure_free (tmp);
}
} else if (strcmp (type->mime, "audio/g711-alaw") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/x-alaw",
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/g711-mlaw") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/x-mulaw",
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/vorbis") == 0) {
GstStructure *tmp;
tmp = gst_structure_new ("audio/x-vorbis",
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, tmp);
2012-09-14 11:25:36 +00:00
} else if (strcmp (type->mime, "audio/flac") == 0) {
GstStructure *tmp;
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);
gst_caps_merge_structure (ret, tmp);
} else if (strcmp (type->mime, "audio/mpeg-L2") == 0) {
GstStructure *tmp;
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);
gst_caps_merge_structure (ret, tmp);
} else {
GST_WARNING ("Unsupported mimetype '%s'", type->mime);
}
}
return ret;
}
static const gchar *
caps_to_mime (GstCaps * caps)
{
GstStructure *s;
const gchar *name;
s = gst_caps_get_structure (caps, 0);
if (!s)
return NULL;
name = gst_structure_get_name (s);
if (strcmp (name, "audio/mpeg") == 0) {
gint mpegversion;
if (!gst_structure_get_int (s, "mpegversion", &mpegversion))
return NULL;
if (mpegversion == 1) {
gint layer;
if (!gst_structure_get_int (s, "layer", &layer) || layer == 3)
return "audio/mpeg";
else if (layer == 2)
return "audio/mpeg-L2";
} else if (mpegversion == 2 || mpegversion == 4) {
return "audio/mp4a-latm";
}
} else if (strcmp (name, "audio/AMR") == 0) {
return "audio/3gpp";
} else if (strcmp (name, "audio/AMR-WB") == 0) {
return "audio/amr-wb";
} else if (strcmp (name, "audio/x-alaw") == 0) {
return "audio/g711-alaw";
} else if (strcmp (name, "audio/x-mulaw") == 0) {
return "audio/g711-mlaw";
} else if (strcmp (name, "audio/x-vorbis") == 0) {
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return "audio/vorbis";
}
return NULL;
}
static GstCaps *
create_src_caps (const GstAmcCodecInfo * codec_info)
{
GstCaps *ret;
ret = gst_caps_new_simple ("audio/x-raw-int",
2012-09-14 11:24:14 +00:00
"rate", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"channels", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
return ret;
}
static void
gst_amc_audio_dec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstAmcAudioDecClass *audiodec_class = GST_AMC_AUDIO_DEC_CLASS (g_class);
const GstAmcCodecInfo *codec_info;
GstPadTemplate *templ;
GstCaps *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;
audiodec_class->codec_info = codec_info;
/* Add pad templates */
caps = create_sink_caps (codec_info);
templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
gst_element_class_add_pad_template (element_class, templ);
gst_object_unref (templ);
caps = create_src_caps (codec_info);
templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
gst_element_class_add_pad_template (element_class, templ);
gst_object_unref (templ);
longname = g_strdup_printf ("Android MediaCodec %s", codec_info->name);
gst_element_class_set_details_simple (element_class,
codec_info->name,
"Codec/Decoder/Audio",
longname, "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
g_free (longname);
}
static void
gst_amc_audio_dec_class_init (GstAmcAudioDecClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstAudioDecoderClass *audiodec_class = GST_AUDIO_DECODER_CLASS (klass);
gobject_class->finalize = gst_amc_audio_dec_finalize;
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_amc_audio_dec_change_state);
audiodec_class->start = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_start);
audiodec_class->stop = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_stop);
#if 0
audiodec_class->open = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_open);
audiodec_class->close = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_close);
#endif
audiodec_class->flush = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_flush);
audiodec_class->set_format = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_set_format);
audiodec_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_amc_audio_dec_handle_frame);
}
static void
gst_amc_audio_dec_init (GstAmcAudioDec * self, GstAmcAudioDecClass * klass)
{
gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (self), TRUE);
gst_audio_decoder_set_drainable (GST_AUDIO_DECODER (self), TRUE);
self->drain_lock = g_mutex_new ();
self->drain_cond = g_cond_new ();
}
static gboolean
gst_amc_audio_dec_open (GstAudioDecoder * decoder)
{
GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (decoder);
GstAmcAudioDecClass *klass = GST_AMC_AUDIO_DEC_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "Opening decoder");
self->codec = gst_amc_codec_new (klass->codec_info->name);
if (!self->codec)
return FALSE;
self->started = FALSE;
self->flushing = TRUE;
GST_DEBUG_OBJECT (self, "Opened decoder");
return TRUE;
}
static gboolean
gst_amc_audio_dec_close (GstAudioDecoder * decoder)
{
GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Closing decoder");
2012-09-18 13:28:31 +00:00
if (self->codec)
gst_amc_codec_free (self->codec);
self->codec = NULL;
self->started = FALSE;
self->flushing = TRUE;
GST_DEBUG_OBJECT (self, "Closed decoder");
return TRUE;
}
static void
gst_amc_audio_dec_finalize (GObject * object)
{
GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (object);
g_mutex_free (self->drain_lock);
g_cond_free (self->drain_cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstStateChangeReturn
gst_amc_audio_dec_change_state (GstElement * element, GstStateChange transition)
{
GstAmcAudioDec *self;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
g_return_val_if_fail (GST_IS_AMC_AUDIO_DEC (element),
GST_STATE_CHANGE_FAILURE);
self = GST_AMC_AUDIO_DEC (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;
if (!gst_amc_audio_dec_open (GST_AUDIO_DECODER (self)))
return GST_STATE_CHANGE_FAILURE;
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);
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:
if (!gst_amc_audio_dec_close (GST_AUDIO_DECODER (self)))
return GST_STATE_CHANGE_FAILURE;
self->downstream_flow_ret = GST_FLOW_WRONG_STATE;
self->started = FALSE;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
gst_amc_audio_dec_set_src_caps (GstAmcAudioDec * self, GstAmcFormat * format)
{
GstCaps *caps;
gint rate, channels;
guint32 channel_mask = 0;
if (!gst_amc_format_get_int (format, "sample-rate", &rate) ||
!gst_amc_format_get_int (format, "channel-count", &channels)) {
GST_ERROR_OBJECT (self, "Failed to get output format metadata");
return FALSE;
}
/* Not always present */
if (gst_amc_format_contains_key (format, "channel-mask"))
gst_amc_format_get_int (format, "channel-mask", (gint *) & channel_mask);
if (self->positions)
g_free (self->positions);
self->positions =
gst_amc_audio_channel_mask_to_positions (channel_mask, channels);
caps = gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, rate,
"channels", G_TYPE_INT, channels,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
if (self->positions)
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0),
self->positions);
self->channels = channels;
self->rate = rate;
gst_pad_set_caps (GST_AUDIO_DECODER_SRC_PAD (self), caps);
gst_caps_unref (caps);
self->input_caps_changed = FALSE;
return TRUE;
}
static void
gst_amc_audio_dec_loop (GstAmcAudioDec * self)
{
GstFlowReturn flow_ret = GST_FLOW_OK;
gboolean is_eos;
GstAmcBufferInfo buffer_info;
gint idx;
GST_AUDIO_DECODER_STREAM_LOCK (self);
retry:
/*if (self->input_caps_changed) {
idx = INFO_OUTPUT_FORMAT_CHANGED;
} else { */
GST_DEBUG_OBJECT (self, "Waiting for available output buffer");
GST_AUDIO_DECODER_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);
GST_AUDIO_DECODER_STREAM_LOCK (self);
/*} */
if (idx < 0) {
if (self->flushing)
goto flushing;
switch (idx) {
case INFO_OUTPUT_BUFFERS_CHANGED:{
GST_DEBUG_OBJECT (self, "Output buffers have changed");
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers,
self->n_output_buffers);
self->output_buffers =
gst_amc_codec_get_output_buffers (self->codec,
&self->n_output_buffers);
if (!self->output_buffers)
goto get_output_buffers_error;
break;
}
case INFO_OUTPUT_FORMAT_CHANGED:{
GstAmcFormat *format;
gchar *format_string;
GST_DEBUG_OBJECT (self, "Output format has changed");
format = gst_amc_codec_get_output_format (self->codec);
if (!format)
goto format_error;
format_string = gst_amc_format_to_string (format);
GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string);
g_free (format_string);
if (!gst_amc_audio_dec_set_src_caps (self, format)) {
gst_amc_format_free (format);
goto format_error;
}
gst_amc_format_free (format);
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers,
self->n_output_buffers);
self->output_buffers =
gst_amc_codec_get_output_buffers (self->codec,
&self->n_output_buffers);
if (!self->output_buffers)
goto get_output_buffers_error;
goto retry;
break;
}
case INFO_TRY_AGAIN_LATER:
GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out");
goto retry;
break;
case G_MININT:
2012-09-14 14:09:48 +00:00
GST_ERROR_OBJECT (self, "Failure dequeueing output buffer");
goto dequeue_error;
break;
default:
g_assert_not_reached ();
break;
}
goto retry;
}
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);
is_eos = ! !(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM);
if (buffer_info.size > 0) {
GstBuffer *outbuf;
GstAmcBuffer *buf;
/* 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
*/
2012-09-14 14:09:48 +00:00
if (idx >= self->n_output_buffers)
goto invalid_buffer_index;
outbuf = gst_buffer_try_new_and_alloc (buffer_info.size);
if (!outbuf)
goto failed_allocate;
buf = &self->output_buffers[idx];
orc_memcpy (GST_BUFFER_DATA (outbuf), buf->data + buffer_info.offset,
buffer_info.size);
flow_ret =
gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf, -1);
}
2012-09-14 14:11:33 +00:00
if (!gst_amc_codec_release_output_buffer (self->codec, idx))
goto failed_release;
if (is_eos || flow_ret == GST_FLOW_UNEXPECTED) {
GST_AUDIO_DECODER_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_UNEXPECTED;
}
g_mutex_unlock (self->drain_lock);
GST_AUDIO_DECODER_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_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
dequeue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to dequeue output buffer"));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
get_output_buffers_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to get output buffers"));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
format_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to handle format"));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
failed_release:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to release output buffer index %d", idx));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_WRONG_STATE;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
flow_error:
{
if (flow_ret == GST_FLOW_UNEXPECTED) {
GST_DEBUG_OBJECT (self, "EOS");
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
} else
if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_UNEXPECTED) {
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_AUDIO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
}
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
invalid_buffer_index:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Invalid input buffer index %d of %d", idx, self->n_input_buffers));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
failed_allocate:
{
GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
("Failed to allocate output buffer"));
gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = GST_FLOW_ERROR;
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
return;
}
}
static gboolean
gst_amc_audio_dec_start (GstAudioDecoder * decoder)
{
GstAmcAudioDec *self;
self = GST_AMC_AUDIO_DEC (decoder);
self->last_upstream_ts = 0;
self->eos = FALSE;
self->downstream_flow_ret = GST_FLOW_OK;
self->started = FALSE;
self->flushing = TRUE;
return TRUE;
}
static gboolean
gst_amc_audio_dec_stop (GstAudioDecoder * decoder)
{
GstAmcAudioDec *self;
self = GST_AMC_AUDIO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Stopping decoder");
gst_pad_stop_task (GST_AUDIO_DECODER_SRC_PAD (decoder));
if (self->started) {
gst_amc_codec_flush (self->codec);
gst_amc_codec_stop (self->codec);
self->started = FALSE;
if (self->input_buffers)
gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers);
self->input_buffers = NULL;
if (self->output_buffers)
gst_amc_codec_free_buffers (self->output_buffers, self->n_output_buffers);
self->output_buffers = NULL;
}
g_free (self->positions);
self->positions = NULL;
g_list_foreach (self->codec_datas, (GFunc) gst_buffer_unref, NULL);
g_list_free (self->codec_datas);
self->codec_datas = NULL;
self->downstream_flow_ret = GST_FLOW_WRONG_STATE;
self->eos = FALSE;
g_mutex_lock (self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (self->drain_cond);
g_mutex_unlock (self->drain_lock);
gst_buffer_replace (&self->codec_data, NULL);
self->flushing = TRUE;
GST_DEBUG_OBJECT (self, "Stopped decoder");
return TRUE;
}
static gboolean
gst_amc_audio_dec_set_format (GstAudioDecoder * decoder, GstCaps * caps)
{
GstAmcAudioDec *self;
GstStructure *s;
GstAmcFormat *format;
const gchar *mime;
gboolean is_format_change = FALSE;
gboolean needs_disable = FALSE;
gchar *format_string;
gint rate, channels;
self = GST_AMC_AUDIO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, 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->input_caps
|| !gst_caps_is_equal (self->input_caps, caps));
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 */
self->input_caps_changed = TRUE;
GST_DEBUG_OBJECT (self,
"Already running and caps did not change the format");
return TRUE;
}
if (needs_disable && is_format_change) {
gst_amc_audio_dec_drain (self);
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
gst_amc_audio_dec_stop (GST_AUDIO_DECODER (self));
GST_AUDIO_DECODER_STREAM_LOCK (self);
}
/* srcpad task is not running at this point */
mime = caps_to_mime (caps);
if (!mime) {
GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
return FALSE;
}
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "rate", &rate) ||
!gst_structure_get_int (s, "channels", &channels)) {
GST_ERROR_OBJECT (self, "Failed to get rate/channels");
return FALSE;
}
format = gst_amc_format_new_audio (mime, rate, channels);
if (!format) {
GST_ERROR_OBJECT (self, "Failed to create audio format");
return FALSE;
}
/* FIXME: These buffers needs to be valid until the codec is stopped again */
g_list_foreach (self->codec_datas, (GFunc) gst_buffer_unref, NULL);
g_list_free (self->codec_datas);
self->codec_datas = NULL;
if (gst_structure_has_field (s, "codec_data")) {
const GValue *h = gst_structure_get_value (s, "codec_data");
GstBuffer *codec_data = gst_value_get_buffer (h);
self->codec_datas =
g_list_prepend (self->codec_datas, gst_buffer_ref (codec_data));
gst_amc_format_set_buffer (format, "csd-0", codec_data);
} else if (gst_structure_has_field (s, "streamheader")) {
const GValue *sh = gst_structure_get_value (s, "streamheader");
gint nsheaders = gst_value_array_get_size (sh);
GstBuffer *buf;
const GValue *h;
2012-09-17 09:28:58 +00:00
gint i, j;
gchar *fname;
2012-09-17 09:28:58 +00:00
for (i = 0, j = 0; i < nsheaders; i++) {
h = gst_value_array_get_value (sh, i);
buf = gst_value_get_buffer (h);
2012-09-17 09:28:58 +00:00
if (strcmp (mime, "audio/vorbis") == 0) {
guint8 header_type = GST_BUFFER_DATA (buf)[0];
/* Only use the identification and setup packets */
if (header_type != 0x01 && header_type != 0x05)
continue;
}
fname = g_strdup_printf ("csd-%d", j);
self->codec_datas =
g_list_prepend (self->codec_datas, gst_buffer_ref (buf));
gst_amc_format_set_buffer (format, fname, buf);
g_free (fname);
2012-09-17 09:28:58 +00:00
j++;
}
}
format_string = gst_amc_format_to_string (format);
GST_DEBUG_OBJECT (self, "Configuring codec with format: %s", format_string);
g_free (format_string);
if (!gst_amc_codec_configure (self->codec, format, 0)) {
GST_ERROR_OBJECT (self, "Failed to configure codec");
return FALSE;
}
gst_amc_format_free (format);
if (!gst_amc_codec_start (self->codec)) {
GST_ERROR_OBJECT (self, "Failed to start codec");
return FALSE;
}
if (self->input_buffers)
gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers);
self->input_buffers =
gst_amc_codec_get_input_buffers (self->codec, &self->n_input_buffers);
if (!self->input_buffers) {
GST_ERROR_OBJECT (self, "Failed to get input buffers");
return FALSE;
}
self->started = TRUE;
self->input_caps_changed = TRUE;
/* Start the srcpad loop again */
self->flushing = FALSE;
self->downstream_flow_ret = GST_FLOW_OK;
gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self),
(GstTaskFunction) gst_amc_audio_dec_loop, decoder);
return TRUE;
}
static void
gst_amc_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard)
{
GstAmcAudioDec *self;
self = GST_AMC_AUDIO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Resetting decoder");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return;
}
self->flushing = TRUE;
gst_amc_codec_flush (self->codec);
/* Wait until the srcpad loop is finished,
* unlock GST_AUDIO_DECODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_AUDIO_DECODER_STREAM_UNLOCK (self);
GST_PAD_STREAM_LOCK (GST_AUDIO_DECODER_SRC_PAD (self));
GST_PAD_STREAM_UNLOCK (GST_AUDIO_DECODER_SRC_PAD (self));
GST_AUDIO_DECODER_STREAM_LOCK (self);
self->flushing = FALSE;
/* Start the srcpad loop again */
self->last_upstream_ts = 0;
self->eos = FALSE;
self->downstream_flow_ret = GST_FLOW_OK;
gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self),
(GstTaskFunction) gst_amc_audio_dec_loop, decoder);
GST_DEBUG_OBJECT (self, "Reset decoder");
}
static GstFlowReturn
gst_amc_audio_dec_handle_frame (GstAudioDecoder * decoder, GstBuffer * inbuf)
{
GstAmcAudioDec *self;
gint idx;
GstAmcBuffer *buf;
GstAmcBufferInfo buffer_info;
guint offset = 0;
GstClockTime timestamp, duration, timestamp_offset = 0;
self = GST_AMC_AUDIO_DEC (decoder);
GST_DEBUG_OBJECT (self, "Handling frame");
/* Make sure to keep a reference to the input here,
* it can be unreffed from the other thread if
* finish_frame() is called */
if (inbuf)
inbuf = gst_buffer_ref (inbuf);
if (!self->started) {
GST_ERROR_OBJECT (self, "Codec not started yet");
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_NOT_NEGOTIATED;
}
if (self->eos) {
GST_WARNING_OBJECT (self, "Got frame after EOS");
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_UNEXPECTED;
}
if (self->flushing)
goto flushing;
if (self->downstream_flow_ret != GST_FLOW_OK)
goto downstream_error;
if (!inbuf)
return gst_amc_audio_dec_drain (self);
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
duration = GST_BUFFER_DURATION (inbuf);
while (offset < GST_BUFFER_SIZE (inbuf)) {
/* 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_AUDIO_DECODER_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);
GST_AUDIO_DECODER_STREAM_LOCK (self);
if (idx < 0) {
if (self->flushing)
goto flushing;
switch (idx) {
case INFO_TRY_AGAIN_LATER:
GST_DEBUG_OBJECT (self, "Dequeueing input buffer timed out");
continue; /* next try */
break;
case G_MININT:
GST_ERROR_OBJECT (self, "Failed to dequeue input buffer");
goto dequeue_error;
default:
g_assert_not_reached ();
break;
}
continue;
}
if (idx >= self->n_input_buffers)
goto invalid_buffer_index;
if (self->flushing)
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);
goto downstream_error;
}
/* Now handle the frame */
/* Copy the buffer content in chunks of size as requested
* by the port */
buf = &self->input_buffers[idx];
memset (&buffer_info, 0, sizeof (buffer_info));
buffer_info.offset = 0;
buffer_info.size = MIN (GST_BUFFER_SIZE (inbuf) - offset, buf->size);
orc_memcpy (buf->data, GST_BUFFER_DATA (inbuf) + offset, buffer_info.size);
/* Interpolate timestamps if we're passing the buffer
* in multiple chunks */
if (offset != 0 && duration != GST_CLOCK_TIME_NONE) {
timestamp_offset =
gst_util_uint64_scale (offset, duration, GST_BUFFER_SIZE (inbuf));
}
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;
if (offset == 0) {
if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DELTA_UNIT))
buffer_info.flags |= BUFFER_FLAG_SYNC_FRAME;
}
offset += buffer_info.size;
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))
goto queue_error;
}
gst_buffer_unref (inbuf);
return self->downstream_flow_ret;
downstream_error:
{
GST_ERROR_OBJECT (self, "Downstream returned %s",
gst_flow_get_name (self->downstream_flow_ret));
if (inbuf)
gst_buffer_unref (inbuf);
return self->downstream_flow_ret;
}
invalid_buffer_index:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Invalid input buffer index %d of %d", idx, self->n_input_buffers));
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
dequeue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to dequeue input buffer"));
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
queue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("Failed to queue input buffer"));
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- returning WRONG_STATE");
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_WRONG_STATE;
}
}
static GstFlowReturn
gst_amc_audio_dec_drain (GstAmcAudioDec * self)
{
GstFlowReturn ret;
gint idx;
GST_DEBUG_OBJECT (self, "Draining codec");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Codec not started yet");
return GST_FLOW_OK;
}
/* Don't send EOS buffer twice, this doesn't work */
if (self->eos) {
GST_DEBUG_OBJECT (self, "Codec is EOS 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_AUDIO_DECODER_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);
GST_AUDIO_DECODER_STREAM_LOCK (self);
if (idx >= 0 && idx < self->n_input_buffers) {
GstAmcBufferInfo buffer_info;
GST_AUDIO_DECODER_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;
if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info)) {
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");
ret = GST_FLOW_ERROR;
}
g_mutex_unlock (self->drain_lock);
GST_AUDIO_DECODER_STREAM_LOCK (self);
} else if (idx >= self->n_input_buffers) {
GST_ERROR_OBJECT (self, "Invalid input buffer index %d of %d",
idx, self->n_input_buffers);
ret = GST_FLOW_ERROR;
} else {
GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx);
ret = GST_FLOW_ERROR;
}
return ret;
}