GstFlowReturn
gst_base_video_decoder_have_frame (GstBaseVideoDecoder * base_video_decoder,
gboolean include_current_buf, GstVideoFrame ** new_frame)
{
GstVideoFrame *frame = base_video_decoder->current_frame;
GstBaseVideoDecoderClass *klass;
guint64 frame_end_offset;
GstClockTime timestamp, duration;
GstClockTime running_time;
GstClockTimeDiff deadline;
GstFlowReturn ret;
klass = GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
if (include_current_buf)
frame_end_offset = base_video_decoder->current_buf_offset;
else
frame_end_offset = base_video_decoder->prev_buf_offset;
gst_base_video_decoder_get_timestamp_at_offset (base_video_decoder,
frame_end_offset, ×tamp, &duration);
frame->presentation_timestamp = timestamp;
frame->presentation_duration = duration;
if (GST_VIDEO_FRAME_FLAG_IS_SET (frame, GST_VIDEO_FRAME_FLAG_SYNC_POINT))
base_video_decoder->distance_from_sync = 0;
frame->distance_from_sync = base_video_decoder->distance_from_sync;
base_video_decoder->distance_from_sync++;
GST_DEBUG ("pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->presentation_timestamp));
GST_DEBUG ("dts %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->decode_timestamp));
GST_DEBUG ("dist %d", frame->distance_from_sync);
running_time = gst_segment_to_running_time (&base_video_decoder->segment,
GST_FORMAT_TIME, frame->presentation_timestamp);
if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->earliest_time))
deadline = GST_CLOCK_DIFF (base_video_decoder->earliest_time, running_time);
else
deadline = G_MAXINT64;
/* do something with frame */
ret = klass->handle_frame (base_video_decoder, frame, deadline);
if (!GST_FLOW_IS_SUCCESS (ret)) {
GST_DEBUG ("flow error!");
}
/* create new frame */
base_video_decoder->current_frame =
gst_base_video_decoder_new_frame (base_video_decoder);
if (new_frame)
*new_frame = base_video_decoder->current_frame;
return ret;
}
static GstFlowReturn
gst_base_video_decoder_have_frame_2 (GstBaseVideoDecoder * base_video_decoder)
{
GstVideoFrame *frame = base_video_decoder->current_frame;
GstBaseVideoDecoderClass *base_video_decoder_class;
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime running_time;
GstClockTimeDiff deadline;
base_video_decoder_class =
GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
frame->distance_from_sync = base_video_decoder->distance_from_sync;
base_video_decoder->distance_from_sync++;
frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (frame->sink_buffer);
frame->presentation_duration = GST_BUFFER_DURATION (frame->sink_buffer);
GST_DEBUG ("pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->presentation_timestamp));
GST_DEBUG ("dts %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->decode_timestamp));
GST_DEBUG ("dist %d", frame->distance_from_sync);
base_video_decoder->frames = g_list_append (base_video_decoder->frames,
frame);
running_time = gst_segment_to_running_time (&base_video_decoder->segment,
GST_FORMAT_TIME, frame->presentation_timestamp);
if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->earliest_time))
deadline = GST_CLOCK_DIFF (base_video_decoder->earliest_time, running_time);
else
deadline = G_MAXINT64;
/* do something with frame */
ret = base_video_decoder_class->handle_frame (base_video_decoder, frame,
deadline);
if (!GST_FLOW_IS_SUCCESS (ret)) {
GST_DEBUG ("flow error!");
}
/* create new frame */
base_video_decoder->current_frame =
gst_base_video_decoder_new_frame (base_video_decoder);
return ret;
}
bool
MediaParserGst::pushGstBuffer()
{
GstBuffer* buffer = gst_buffer_new_and_alloc(PUSHBUF_SIZE);
std::streamoff ret = _stream->read(GST_BUFFER_DATA(buffer), PUSHBUF_SIZE);
if (ret == 0) {
if (!_stream->eof()) {
log_error(_("MediaParserGst failed to read the stream, but did not "
"reach EOF!"));
} else {
_parsingComplete = true;
}
gst_buffer_unref(buffer);
return false;
}
if (ret < PUSHBUF_SIZE) {
if (!_stream->eof()) {
log_error(_("MediaParserGst failed to read the stream, but did not "
"reach EOF!"));
} else {
_parsingComplete = true;
}
GST_BUFFER_SIZE(buffer) = ret;
}
GstFlowReturn rv = gst_pad_push (_srcpad, buffer);
if (!GST_FLOW_IS_SUCCESS (rv)) {
log_error(_("MediaParserGst failed to push more data into the demuxer! "
"Seeking back."));
_stream->seek(_stream->tell() - ret);
return false;
}
return true;
}
GstFlowReturn
gst_base_video_decoder_have_frame (GstBaseVideoDecoder * base_video_decoder)
{
GstVideoFrame *frame = base_video_decoder->current_frame;
GstBuffer *buffer;
GstBaseVideoDecoderClass *base_video_decoder_class;
GstFlowReturn ret = GST_FLOW_OK;
int n_available;
GST_DEBUG ("have_frame");
base_video_decoder_class =
GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
n_available = gst_adapter_available (base_video_decoder->output_adapter);
if (n_available) {
buffer = gst_adapter_take_buffer (base_video_decoder->output_adapter,
n_available);
} else {
buffer = gst_buffer_new_and_alloc (0);
}
frame->distance_from_sync = base_video_decoder->distance_from_sync;
base_video_decoder->distance_from_sync++;
#if 0
if (frame->presentation_timestamp == GST_CLOCK_TIME_NONE) {
frame->presentation_timestamp =
gst_base_video_decoder_get_timestamp (base_video_decoder,
frame->presentation_frame_number);
frame->presentation_duration =
gst_base_video_decoder_get_timestamp (base_video_decoder,
frame->presentation_frame_number + 1) - frame->presentation_timestamp;
frame->decode_timestamp =
gst_base_video_decoder_get_timestamp (base_video_decoder,
frame->decode_frame_number);
}
#endif
#if 0
GST_BUFFER_TIMESTAMP (buffer) = frame->presentation_timestamp;
GST_BUFFER_DURATION (buffer) = frame->presentation_duration;
if (frame->decode_frame_number < 0) {
GST_BUFFER_OFFSET (buffer) = 0;
} else {
GST_BUFFER_OFFSET (buffer) = frame->decode_timestamp;
}
GST_BUFFER_OFFSET_END (buffer) = GST_CLOCK_TIME_NONE;
#endif
GST_DEBUG ("pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->presentation_timestamp));
GST_DEBUG ("dts %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->decode_timestamp));
GST_DEBUG ("dist %d", frame->distance_from_sync);
if (frame->is_sync_point) {
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
if (base_video_decoder->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
base_video_decoder->discont = FALSE;
}
frame->sink_buffer = buffer;
base_video_decoder->frames = g_list_append (base_video_decoder->frames,
frame);
/* do something with frame */
ret = base_video_decoder_class->handle_frame (base_video_decoder, frame);
if (!GST_FLOW_IS_SUCCESS (ret)) {
GST_DEBUG ("flow error!");
}
/* create new frame */
base_video_decoder->current_frame =
gst_base_video_decoder_new_frame (base_video_decoder);
return ret;
}
