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 >
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