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vp8dec: drop late frames after decoding them

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This saves a memcpy, which is always something.
This commit is contained in:
Philip Jägenstedt 2010-05-21 20:53:36 +02:00 committed by Sebastian Dröge
parent 7ce969720f
commit 0285cff300
4 changed files with 37 additions and 18 deletions
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23
ext/vp8/gst/video/gstbasevideodecoder.c
View file

@ -904,9 +904,9 @@ gst_base_video_decoder_new_frame (GstBaseVideoDecoder * base_video_decoder)
frame->decode_frame_number = frame->system_frame_number -
base_video_decoder->reorder_depth;
frame->decode_timestamp = -1;
frame->presentation_timestamp = -1;
frame->presentation_duration = -1;
frame->decode_timestamp = GST_CLOCK_TIME_NONE;
frame->presentation_timestamp = GST_CLOCK_TIME_NONE;
frame->presentation_duration = GST_CLOCK_TIME_NONE;
frame->n_fields = 2;
return frame;
@ -1010,8 +1010,8 @@ gst_base_video_decoder_finish_frame (GstBaseVideoDecoder * base_video_decoder,
GST_BUFFER_TIMESTAMP (frame->src_buffer) = frame->presentation_timestamp;
GST_BUFFER_DURATION (frame->src_buffer) = frame->presentation_duration;
GST_BUFFER_OFFSET (frame->src_buffer) = -1;
GST_BUFFER_OFFSET_END (frame->src_buffer) = -1;
GST_BUFFER_OFFSET (frame->src_buffer) = GST_BUFFER_OFFSET_NONE;
GST_BUFFER_OFFSET_END (frame->src_buffer) = GST_BUFFER_OFFSET_NONE;
GST_DEBUG ("pushing frame %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->presentation_timestamp));
@ -1270,6 +1270,8 @@ 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);
@ -1288,8 +1290,17 @@ gst_base_video_decoder_have_frame_2 (GstBaseVideoDecoder * base_video_decoder)
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 = 0;
/* do something with frame */
ret = base_video_decoder_class->handle_frame (base_video_decoder, frame);
ret = base_video_decoder_class->handle_frame (base_video_decoder, frame,
deadline);
if (!GST_FLOW_IS_SUCCESS (ret)) {
GST_DEBUG ("flow error!");
}

3
ext/vp8/gst/video/gstbasevideodecoder.h
View file

@ -127,7 +127,8 @@ struct _GstBaseVideoDecoderClass
int offset, int n);
GstFlowReturn (*parse_data) (GstBaseVideoDecoder *decoder, gboolean at_eos);
GstFlowReturn (*finish) (GstBaseVideoDecoder *coder);
GstFlowReturn (*handle_frame) (GstBaseVideoDecoder *coder, GstVideoFrame *frame);
GstFlowReturn (*handle_frame) (GstBaseVideoDecoder *coder, GstVideoFrame *frame,
GstClockTimeDiff deadline);
GstFlowReturn (*shape_output) (GstBaseVideoDecoder *coder, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoDecoder *coder);

6
ext/vp8/gst/video/gstbasevideoutils.h
View file

@ -54,9 +54,9 @@ struct _GstVideoState
struct _GstVideoFrame
{
guint64 decode_timestamp;
guint64 presentation_timestamp;
guint64 presentation_duration;
GstClockTime decode_timestamp;
GstClockTime presentation_timestamp;
GstClockTime presentation_duration;
gint system_frame_number;
gint decode_frame_number;

23
ext/vp8/gstvp8dec.c
View file

@ -145,7 +145,7 @@ static gboolean gst_vp8_dec_reset (GstBaseVideoDecoder * decoder);
static GstFlowReturn gst_vp8_dec_parse_data (GstBaseVideoDecoder * decoder,
gboolean at_eos);
static GstFlowReturn gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder,
GstVideoFrame * frame);
GstVideoFrame * frame, GstClockTimeDiff deadline);
GType gst_vp8_dec_get_type (void);
@ -416,7 +416,8 @@ gst_vp8_dec_image_to_buffer (GstVP8Dec * dec, const vpx_image_t * img,
}
static GstFlowReturn
gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame)
gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame,
GstClockTimeDiff deadline)
{
GstVP8Dec *dec;
GstFlowReturn ret = GST_FLOW_OK;
@ -518,13 +519,19 @@ gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame)
img = vpx_codec_get_frame (&dec->decoder, &iter);
if (img) {
ret = gst_base_video_decoder_alloc_src_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
gst_vp8_dec_image_to_buffer (dec, img, frame->src_buffer);
gst_base_video_decoder_finish_frame (decoder, frame);
} else {
if (deadline < 0) {
GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
(double) -deadline / GST_SECOND);
gst_base_video_decoder_skip_frame (decoder, frame);
} else {
ret = gst_base_video_decoder_alloc_src_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
gst_vp8_dec_image_to_buffer (dec, img, frame->src_buffer);
gst_base_video_decoder_finish_frame (decoder, frame);
} else {
gst_base_video_decoder_skip_frame (decoder, frame);
}
}
vpx_img_free (img);