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avconv: avoid memcpy in vsrc_buffer when possible.

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Decoding Sintel.2010.1080p.mkv with 4 threads on an i7 2600K goes from
260s to 244s.
This commit is contained in:
Anton Khirnov 2011-12-21 21:04:05 +01:00
parent 64dca32cdf
commit 04a14d4d25
1 changed files with 37 additions and 15 deletions
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36
avconv.c
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@ -50,6 +50,7 @@
#if CONFIG_AVFILTER
# include "libavfilter/avfilter.h"
# include "libavfilter/avfiltergraph.h"
# include "libavfilter/buffersrc.h"
# include "libavfilter/vsrc_buffer.h"
#endif
@ -529,6 +530,13 @@ static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
unref_buffer(ist, buf);
}
static void filter_release_buffer(AVFilterBuffer *fb)
{
FrameBuffer *buf = fb->priv;
av_free(fb);
unref_buffer(buf->ist, buf);
}
#if CONFIG_AVFILTER
static int configure_video_filters(InputStream *ist, OutputStream *ost)
@ -1915,21 +1923,35 @@ static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int
continue;
#if CONFIG_AVFILTER
if (ost->input_video_filter) {
AVRational sar;
if (ist->st->sample_aspect_ratio.num)
sar = ist->st->sample_aspect_ratio;
else
sar = ist->st->codec->sample_aspect_ratio;
av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
FrameBuffer *buf = decoded_frame->opaque;
AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
decoded_frame->data, decoded_frame->linesize,
AV_PERM_READ | AV_PERM_PRESERVE,
ist->st->codec->width, ist->st->codec->height,
ist->st->codec->pix_fmt);
avfilter_copy_frame_props(fb, decoded_frame);
fb->pts = ist->pts;
fb->buf->priv = buf;
fb->buf->free = filter_release_buffer;
buf->refcount++;
av_buffersrc_buffer(ost->input_video_filter, fb);
} else
av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
ist->pts, decoded_frame->sample_aspect_ratio);
if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
av_free(buffer_to_free);
return AVERROR(ENOMEM);
} else
avcodec_get_frame_defaults(ist->filtered_frame);
filtered_frame = ist->filtered_frame;
frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
}
while (frame_available) {
AVRational ist_pts_tb;
if (ost->output_video_filter)