[Libav-user] libavcodec usage inside Cinelerra-GG [LONG]

[Andrew Randrianasulu]

В сообщении от Monday 04 November 2019 20:51:06 Carl Eugen Hoyos написал(а):
> Am Mo., 4. Nov. 2019 um 16:27 Uhr schrieb Andrew Randrianasulu
> <randrianasulu at gmail.com>:
> 
> > my diff for ffmpeg.c:
> >
> > diff --git a/cinelerra-5.1/cinelerra/ffmpeg.C b/cinelerra-5.1/cinelerra/ffmpeg.C
> 
> When I said in an earlier mail you check how ffmpeg.c deals with seeking in
> your file, I did not mean cinelerra/ffmpeg.C but fftools/ffmpeg.c in the
> FFmpeg sources...

My naive search for 'seek' only resulted in

static int seek_to_start(InputFile *ifile, AVFormatContext *is) function..I'll try to understand what it does and compare ..

still, my whole file backward reading  caught this comment:


static void do_video_out(OutputFile *of,
                         OutputStream *ost,
                         AVFrame *next_picture,
                         double sync_ipts)

and down this function ....

case VSYNC_CFR:
            // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
            if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
                nb_frames = 0;
            } else if (delta < -1.1)
                nb_frames = 0;
            else if (delta > 1.1) {
                nb_frames = lrintf(delta);
                if (delta0 > 1.1)
                    nb0_frames = lrintf(delta0 - 0.6);
            }
            break;

are there still bugs in avidec.c ? Because, well, this CinelerraGG bug mainfest itself on AVI container ....
 

> 
> Carl Eugen
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