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ffdec: check if input is already 0-padded

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When the input buffer is already 0-padded we don't need to copy. This can happen
because in the ALLOCATION query we suggest this.
Only do temporary padding when we are using a parser.
This commit is contained in:
Wim Taymans 2012-03-19 10:29:34 +01:00
parent 3d2527c0a2
commit b7b587bce0
1 changed files with 12 additions and 9 deletions
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21
ext/ffmpeg/gstffmpegdec.c
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@ -134,7 +134,6 @@ struct _GstFFMpegDec
enum AVDiscard skip_frame;
gint lowres;
gboolean direct_rendering;
gboolean do_padding;
gboolean debug_mv;
int max_threads;
@ -646,7 +645,6 @@ gst_ffmpegdec_open (GstFFMpegDec * ffmpegdec)
oclass->in_plugin->name, oclass->in_plugin->id);
/* open a parser if we can */
ffmpegdec->do_padding = TRUE;
switch (oclass->in_plugin->id) {
case CODEC_ID_MPEG4:
case CODEC_ID_MJPEG:
@ -1445,8 +1443,8 @@ gst_ffmpegdec_audio_negotiate (GstFFMpegDec * ffmpegdec, gboolean force)
memcpy (ffmpegdec->format.audio.gst_layout,
ffmpegdec->format.audio.ffmpeg_layout,
sizeof (GstAudioChannelPosition) * ffmpegdec->format.audio.channels);
gst_audio_channel_positions_to_valid_order (ffmpegdec->format.
audio.gst_layout, ffmpegdec->format.audio.channels);
gst_audio_channel_positions_to_valid_order (ffmpegdec->format.audio.
gst_layout, ffmpegdec->format.audio.channels);
GST_LOG_OBJECT (ffmpegdec, "output caps %" GST_PTR_FORMAT, caps);
@ -2756,7 +2754,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime in_timestamp;
GstClockTime in_duration;
gboolean discont;
gboolean discont, do_padding;
gint64 in_offset;
const GstTSInfo *in_info;
const GstTSInfo *dec_info;
@ -2860,7 +2858,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
bsize, in_offset, GST_TIME_ARGS (in_timestamp),
GST_TIME_ARGS (in_duration), in_info->idx);
if (ffmpegdec->do_padding) {
if (!GST_MEMORY_IS_ZERO_PADDED (map.memory)) {
/* add padding */
if (ffmpegdec->padded_size < bsize + FF_INPUT_BUFFER_PADDING_SIZE) {
ffmpegdec->padded_size = bsize + FF_INPUT_BUFFER_PADDING_SIZE;
@ -2883,6 +2881,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
if (ffmpegdec->pctx) {
gint res;
do_padding = TRUE;
GST_LOG_OBJECT (ffmpegdec,
"Calling av_parser_parse2 with offset %" G_GINT64_FORMAT ", ts:%"
GST_TIME_FORMAT " size %d", in_offset, GST_TIME_ARGS (in_timestamp),
@ -2930,14 +2929,17 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
break;
}
} else {
do_padding = FALSE;
data = bdata;
size = bsize;
dec_info = in_info;
}
if (ffmpegdec->do_padding) {
if (do_padding) {
/* add temporary padding */
GST_CAT_TRACE_OBJECT (GST_CAT_PERFORMANCE, ffmpegdec,
"Add temporary input padding");
memcpy (tmp_padding, data + size, FF_INPUT_BUFFER_PADDING_SIZE);
memset (data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
}
@ -2946,14 +2948,14 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
len =
gst_ffmpegdec_frame (ffmpegdec, data, size, &have_data, dec_info, &ret);
if (ffmpegdec->do_padding) {
if (do_padding) {
memcpy (data + size, tmp_padding, FF_INPUT_BUFFER_PADDING_SIZE);
}
if (ret != GST_FLOW_OK) {
GST_LOG_OBJECT (ffmpegdec, "breaking because of flow ret %s",
gst_flow_get_name (ret));
/* bad flow retun, make sure we discard all data and exit */
/* bad flow return, make sure we discard all data and exit */
bsize = 0;
break;
}
@ -2999,6 +3001,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
ffmpegdec->clear_ts = TRUE;
}
ffmpegdec->last_frames++;
do_padding = TRUE;
GST_LOG_OBJECT (ffmpegdec, "Before (while bsize>0). bsize:%d , bdata:%p",
bsize, bdata);