videolan/ffmpeg
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ffmpeg: factorize quality calculation

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Calculate quality value once per stream in print_report().
Also fix segfault, as coded_frame can be NULL.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Michael Niedermayer 2011-04-06 21:17:32 +02:00 committed by Anton Khirnov
parent bbc572a2c4
commit 5da116a3fd
1 changed files with 6 additions and 7 deletions
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13
ffmpeg.c
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@ -1322,26 +1322,25 @@ static void print_report(AVFormatContext **output_files,
ti1 = 1e10;
vid = 0;
for(i=0;i<nb_ostreams;i++) {
float q = -1;
ost = ost_table[i];
enc = ost->st->codec;
if (!ost->st->stream_copy && enc->coded_frame)
q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
!ost->st->stream_copy ?
enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
}
if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
float t = (av_gettime()-timer_start) / 1000000.0;
frame_number = ost->frame_number;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
!ost->st->stream_copy ?
enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
if(is_last_report)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
if(qp_hist){
int j;
int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
int qp = lrintf(q);
if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
qp_histogram[qp]++;
for(j=0; j<32; j++)