Hi, I don't use internal libav filters, I apply custom sobel, segmentation, desaturation filters on each decoded pictures. ...
Le 3 sept. 2015 à 11:00, Paul B Mahol <[email protected]> a écrit : > > Dana 3. 9. 2015. 10:23 osoba "Talgorn François-Xavier" > <[email protected]> napisala je: > > > > Hi all, > > > > Thank you in advance for your help. > > I wrote a program that takes videos as input (H264), process filters on it > > and encode a modified video in MP4 (simple profile). > > Everything works fine but the fact that some videos are encoded with crazy > > frame rates, like 2500 or 24000 fps. > > I assume the problem is related to the way I manage timestamps. I tried > > tens of workarounds to no avail. > > Here is the resulting infos of both an example that fails and another that > > is OK. > > > > Any help would be a relief. Thanks! > > > > ---------------------------- > > AN EXAMPLE THAT FAILS > > ---------------------------- > > H264 ORIGINAL VIDEO > > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MS-EPI.mp4': > > Metadata: > > major_brand : mp42 > > minor_version : 1 > > compatible_brands: mp42mp41 > > creation_time : 2014-02-06 23:02:05 > > Duration: 00:01:12.44, start: 0.000000, bitrate: 7175 kb/s > > Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, > > bt709), 960x540, 7041 kb/s, 25 fps, 25 tbr, 2500 tbn, 5k tbc (default) > > Metadata: > > creation_time : 2014-02-06 23:02:05 > > handler_name : Module de gestion vid?o > > Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, > > stereo, fltp, 127 kb/s (default) > > Metadata: > > creation_time : 2014-02-06 23:02:05 > > handler_name : Module de gestion sonore > > > > > > FAILED RESULTING ENCODED VIDEO (2501.39 fps) > > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '_MS_MS-EPI.mp4': > > Metadata: > > major_brand : isom > > minor_version : 512 > > compatible_brands: isomiso2mp41 > > encoder : Lavf56.15.102 > > Duration: 00:01:12.45, start: 0.000000, bitrate: 453 kb/s > > Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), > > yuv420p, 960x540 [SAR 1:1 DAR 16:9], 32430 kb/s, 2501.39 fps, 2500 tbr, 10k > > tbn, 2500 tbc (default) > > Metadata: > > handler_name : VideoHandler > > Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, > > stereo, fltp, 127 kb/s (default) > > Metadata: > > handler_name : SoundHandler > > > > ----------------------------- > > AN EXAMPLE THAT WORKS > > ----------------------------- > > ORIGINAL H264 VIDEO > > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Coco.mp4': > > Metadata: > > major_brand : mp42 > > minor_version : 0 > > compatible_brands: isommp42 > > creation_time : 2015-05-31 07:54:08 > > Duration: 00:00:15.00, start: 0.000000, bitrate: 352 kb/s > > Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / > > 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 252 kb/s, 25 fps, 25 tbr, > > 25 tbn, 50 tbc (default) > > Metadata: > > handler_name : VideoHandler > > Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, > > stereo, fltp, 96 kb/s (default) > > Metadata: > > creation_time : 2015-05-31 07:54:08 > > handler_name : IsoMedia File Produced by Google, 5-11-2011 > > > > CORRECT RESULTING ENCODED VIDEO > > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '_Coco.mp4':= 0B f=0/0 > > Metadata: > > major_brand : isom > > minor_version : 512 > > compatible_brands: isomiso2mp41 > > encoder : Lavf56.15.102 > > Duration: 00:00:15.00, start: 0.000000, bitrate: 893 kb/s > > Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), > > yuv420p, 640x360 [SAR 1:1 DAR 16:9], 811 kb/s, 25 fps, 25 tbr, 12800 tbn, > > 25 tbc (default) > > Metadata: > > handler_name : VideoHandler > > Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, > > stereo, fltp, 96 kb/s (default) > > Metadata: > > handler_name : SoundHandler > > 1.81 A-V: -0.004 fd= 0 aq= 6KB vq= 37KB sq= 0B f=0/0 > > > > What filtering you used? > _______________________________________________ > > Libav-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/libav-user > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user
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