static GstFlowReturn
gst_amc_audio_dec_drain (GstAmcAudioDec * 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_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, &err);
GST_AUDIO_DECODER_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_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;
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_AUDIO_DECODER_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;
}
gst_adapter_flush (self->output_adapter,
gst_adapter_available (self->output_adapter));
return ret;
}
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;
}
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;
GstMapInfo minfo;
GError *err = NULL;
memset (&minfo, 0, sizeof (minfo));
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->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_PTS (inbuf);
duration = GST_BUFFER_DURATION (inbuf);
gst_buffer_map (inbuf, &minfo, GST_MAP_READ);
while (offset < minfo.size) {
/* 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, &err);
GST_AUDIO_DECODER_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");
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 (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 (!buf)
goto failed_to_get_input_buffer;
memset (&buffer_info, 0, sizeof (buffer_info));
buffer_info.offset = 0;
buffer_info.size = MIN (minfo.size - offset, buf->size);
gst_amc_buffer_set_position_and_limit (buf, NULL, buffer_info.offset,
buffer_info.size);
orc_memcpy (buf->data, minfo.data + offset, buffer_info.size);
gst_amc_buffer_free (buf);
buf = NULL;
/* 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, minfo.size);
}
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,
&err)) {
if (self->flushing) {
g_clear_error (&err);
goto flushing;
}
goto queue_error;
}
self->drained = FALSE;
}
gst_buffer_unmap (inbuf, &minfo);
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 (minfo.data)
gst_buffer_unmap (inbuf, &minfo);
if (inbuf)
gst_buffer_unref (inbuf);
return self->downstream_flow_ret;
}
failed_to_get_input_buffer:
{
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (inbuf, &minfo);
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
dequeue_error:
{
GST_ELEMENT_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (inbuf, &minfo);
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
queue_error:
{
GST_AUDIO_DECODER_ERROR_FROM_ERROR (self, err);
if (minfo.data)
gst_buffer_unmap (inbuf, &minfo);
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING");
if (minfo.data)
gst_buffer_unmap (inbuf, &minfo);
if (inbuf)
gst_buffer_unref (inbuf);
return GST_FLOW_FLUSHING;
}
}
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 (!buf)
goto failed_to_get_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;
}
buffer_fill_error:
{
GST_ELEMENT_ERROR (self, RESOURCE, WRITE, (NULL),
("Failed to write input into the amc buffer(write %dB to a %dB 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;
}
}
