On Tue, Sep 14, 2021 at 4:52 PM Richard Kimberly Heck <rikih...@lyx.org> wrote:
> Hi, all, > > I've recently started experiencing problems when convering files with > AC3 video. Basically, I end up with no sound. Here's an example. This > file reports as: > > Input #0, mpeg, from 'vobfile.vob': > Duration: 01:26:05.22, start: 0.233567, bitrate: 4943 kb/s > Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m, > progressive), 720x480 [SAR 32:27 DAR 16:9], 29.97 fps, 59.94 tbr, 90k > tbn, 59.94 tbc > Side data: > cpb: bitrate max/min/avg: 9800000/0/0 buffer size: 1835008 > vbv_delay: N/A > Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s > > I try to convert it to mp4 with: > > ffmpeg -i vobfile.vob -f mp4 -b:v 2500k -vcodec libx264 -b:a 192k > -aspect 16:9 -sn -y vobfile.mp4 > > and I get a file with no sound or (in other cases) only with very choppy > sound that is unintelligible. It's only with AC3 input that this seems > to be happening. > > Are there other options I can try? > Make sure that ac3 you want to transcode is playing/decoding fine in ffplay first. > > Thanks, > Riki > > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".