Re: [FFmpeg-user] concat video requirements
Ahh nevermind, what you said works when I use the concat filter and not "ffmpeg -f concat -i file.txt...". I had assumed they would work the same On Mon, Jul 17, 2017 at 4:37 PM, Tony Lambropoulos <tonyl7...@gmail.com> wrote: > Hey Gyan, > I've ensured the SAR ratios and resolutions match up. The results are > still pretty funky, however. The first video last far longer than it's > supposed to and the second video is running in slow motion. Is there > nothing else that should match up? > > Here are the specs on the two input videos (first and second respectively): > > tony@ubuntu:/mnt/hgfs/vloop/transcoding$ ffmpeg -i /tmp/here2.mp4 > > ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers > > built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) > > configuration: --prefix=/home/tony/ffmpeg_build > --pkg-config-flags=--static --extra-cflags=-I/home/tony/ffmpeg_build/include > --extra-ldflags=-L/home/tony/ffmpeg_build/lib --bindir=/home/tony/bin > --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype > --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis > --enable-libvpx --enable-libx264 --enable-nonfree > > libavutil 55. 34.101 / 55. 34.101 > > libavcodec 57. 64.101 / 57. 64.101 > > libavformat57. 56.101 / 57. 56.101 > > libavdevice57. 1.100 / 57. 1.100 > > libavfilter 6. 65.100 / 6. 65.100 > > libswscale 4. 2.100 / 4. 2.100 > > libswresample 2. 3.100 / 2. 3.100 > > libpostproc54. 1.100 / 54. 1.100 > > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/here2.mp4': > > Metadata: > > major_brand : isom > > minor_version : 512 > > compatible_brands: isomiso2avc1mp41 > > encoder : Lavf57.56.101 > > Duration: 00:00:05.00, start: 0.00, bitrate: 104 kb/s > > Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, > 720x260 [SAR 1:1 DAR 36:13], 93 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc > (default) > > Metadata: > > handler_name: VideoHandler > > Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, > stereo, fltp, 2 kb/s (default) > > Metadata: > > handler_name: SoundHandler > > At least one output file must be specified > > tony@ubuntu:/mnt/hgfs/vloop/transcoding$ ffmpeg -i /tmp/ > 6d41bcedfe4849cf5a9a244ce159d0bd.mp4 > > ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers > > built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) > > configuration: --prefix=/home/tony/ffmpeg_build > --pkg-config-flags=--static --extra-cflags=-I/home/tony/ffmpeg_build/include > --extra-ldflags=-L/home/tony/ffmpeg_build/lib --bindir=/home/tony/bin > --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype > --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis > --enable-libvpx --enable-libx264 --enable-nonfree > > libavutil 55. 34.101 / 55. 34.101 > > libavcodec 57. 64.101 / 57. 64.101 > > libavformat57. 56.101 / 57. 56.101 > > libavdevice57. 1.100 / 57. 1.100 > > libavfilter 6. 65.100 / 6. 65.100 > > libswscale 4. 2.100 / 4. 2.100 > > libswresample 2. 3.100 / 2. 3.100 > > libpostproc54. 1.100 / 54. 1.100 > > Input #0, mpegts, from '/tmp/6d41bcedfe4849cf5a9a244ce159d0bd.mp4': > > Duration: 00:00:09.02, start: 1.456711, bitrate: 1003 kb/s > > Program 1 > > Metadata: > > service_name: Service01 > > service_provider: FFmpeg > > Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), > yuv420p(progressive), 720x260 [SAR 1:1 DAR 36:13], 29.97 fps, 29.97 tbr, > 90k tbn, 59.94 tbc > > Stream #0:1[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, > stereo, s16p, 384 kb/s > > > Thanks, > > Tony > > On Mon, Jul 17, 2017 at 2:20 PM, Gyan <gyando...@gmail.com> wrote: > >> On Tue, Jul 18, 2017 at 12:37 AM, Tony Lambropoulos <tonyl7...@gmail.com> >> wrote: >> >> > >> > Does anyone have a specific list of these attributes to ensure the >> concat >> > command is successful? >> > >> >> For video streams, resolution and SAR have to match. Pixel format and >> frame >> rate need not match. Since the filter operates upon decoded frames, >> inputs' >> bitstream syntax i.e. codec is not relevant. >> ___ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] concat video requirements
Hey Gyan, I've ensured the SAR ratios and resolutions match up. The results are still pretty funky, however. The first video last far longer than it's supposed to and the second video is running in slow motion. Is there nothing else that should match up? Here are the specs on the two input videos (first and second respectively): tony@ubuntu:/mnt/hgfs/vloop/transcoding$ ffmpeg -i /tmp/here2.mp4 ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/home/tony/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/tony/ffmpeg_build/include --extra-ldflags=-L/home/tony/ffmpeg_build/lib --bindir=/home/tony/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat57. 56.101 / 57. 56.101 libavdevice57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc54. 1.100 / 54. 1.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/here2.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf57.56.101 Duration: 00:00:05.00, start: 0.00, bitrate: 104 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x260 [SAR 1:1 DAR 36:13], 93 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name: VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default) Metadata: handler_name: SoundHandler At least one output file must be specified tony@ubuntu:/mnt/hgfs/vloop/transcoding$ ffmpeg -i /tmp/6d41bcedfe4849cf5a9a244ce159d0bd.mp4 ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/home/tony/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/tony/ffmpeg_build/include --extra-ldflags=-L/home/tony/ffmpeg_build/lib --bindir=/home/tony/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat57. 56.101 / 57. 56.101 libavdevice57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc54. 1.100 / 54. 1.100 Input #0, mpegts, from '/tmp/6d41bcedfe4849cf5a9a244ce159d0bd.mp4': Duration: 00:00:09.02, start: 1.456711, bitrate: 1003 kb/s Program 1 Metadata: service_name: Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 720x260 [SAR 1:1 DAR 36:13], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 384 kb/s Thanks, Tony On Mon, Jul 17, 2017 at 2:20 PM, Gyan <gyando...@gmail.com> wrote: > On Tue, Jul 18, 2017 at 12:37 AM, Tony Lambropoulos <tonyl7...@gmail.com> > wrote: > > > > > Does anyone have a specific list of these attributes to ensure the concat > > command is successful? > > > > For video streams, resolution and SAR have to match. Pixel format and frame > rate need not match. Since the filter operates upon decoded frames, inputs' > bitstream syntax i.e. codec is not relevant. > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] concat video requirements
I see on this wiki for the concat filter: https://trac.ffmpeg.org/wiki/Concatenate "The inputs have to be of the same frame size, and a handful of other attributes have to match." Does anyone have a specific list of these attributes to ensure the concat command is successful? Appreciate the help, Tony ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
