I need to concatenate several mp4 videos taken with a cell phone. It happens that the resulting concatenated video ends up rotated.
I am using the method shown in https://trac.ffmpeg.org/wiki/Concatenate, more specifically concat protocol, where I convert the mp4 in a MPEG-2 TS file and than concatenate the TS files. Below is the output of the used commands. I noticed that converting to TS files has some rotate info under metadata but I don't have the required knowledge to understand why this is there. Anyways, what do I need to do to avoid these unrequested rotations? Commands Output: Concatenating 2 files 11_PeopleWaitingForTheTrain.mp4 12_I_Am_Waiting.mp4 Protocol: mp4 EXE: -i 11_PeopleWaitingForTheTrain.mp4 -c copy 001.ts ffmpeg version 2021-03-14-git-1d61a31497-essentials_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband libavutil 56. 68.100 / 56. 68.100 libavcodec 58.131.100 / 58.131.100 libavformat 58. 74.100 / 58. 74.100 libavdevice 58. 12.100 / 58. 12.100 libavfilter 7.109.100 / 7.109.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '11_PeopleWaitingForTheTrain.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.74.100 Duration: 00:00:06.02, start: 0.000000, bitrate: 17254 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 17036 kb/s, 30 fps, 30 tbr, 90k tbn, 180k tbc (default) Metadata: rotate : 90 handler_name : VideoHandle vendor_id : [0][0][0][0] Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default) Metadata: handler_name : SoundHandle vendor_id : [0][0][0][0] Output #0, mpegts, to '001.ts': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.74.100 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, q=2-31, 17036 kb/s, 30 fps, 30 tbr, 90k tbn, 90k tbc (default) Metadata: rotate : 90 handler_name : VideoHandle vendor_id : [0][0][0][0] Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default) Metadata: handler_name : SoundHandle vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame= 180 fps=0.0 q=-1.0 Lsize= 12993kB time=00:00:05.99 bitrate=17756.2kbits/s speed= 147x video:12476kB audio:188kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.598021% ---------------- EXE: -i 12_I_Am_Waiting.mp4 -c copy 002.ts ffmpeg version 2021-03-14-git-1d61a31497-essentials_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband libavutil 56. 68.100 / 56. 68.100 libavcodec 58.131.100 / 58.131.100 libavformat 58. 74.100 / 58. 74.100 libavdevice 58. 12.100 / 58. 12.100 libavfilter 7.109.100 / 7.109.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '12_I_Am_Waiting.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.74.100 Duration: 00:00:10.01, start: 0.000000, bitrate: 19003 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 18717 kb/s, 30 fps, 30 tbr, 90k tbn, 180k tbc (default) Metadata: rotate : 270 handler_name : VideoHandle vendor_id : [0][0][0][0] Side data: displaymatrix: rotation of 90.00 degrees Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 281 kb/s (default) Metadata: handler_name : SoundHandle vendor_id : [0][0][0][0] Output #0, mpegts, to '002.ts': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.74.100 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, q=2-31, 18717 kb/s, 30 fps, 30 tbr, 90k tbn, 90k tbc (default) Metadata: rotate : 270 handler_name : VideoHandle vendor_id : [0][0][0][0] Side data: displaymatrix: rotation of 90.00 degrees Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 281 kb/s (default) Metadata: handler_name : SoundHandle vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame= 330 fps=0.0 q=-1.0 Lsize= 23803kB time=00:00:09.98 bitrate=19525.4kbits/s speed= 158x video:22860kB audio:344kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.580378% ---------------- ffmpeg cmd: -i "concat:001.ts|002.ts" -c copy concatenated.mp4 EXE: -i "concat:001.ts|002.ts" -c copy concatenated.mp4 ffmpeg version 2021-03-14-git-1d61a31497-essentials_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband libavutil 56. 68.100 / 56. 68.100 libavcodec 58.131.100 / 58.131.100 libavformat 58. 74.100 / 58. 74.100 libavdevice 58. 12.100 / 58. 12.100 libavfilter 7.109.100 / 7.109.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mpegts, from 'concat:001.ts|002.ts': Duration: 00:00:11.00, start: 1.400000, bitrate: 27406 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 1920x1080, 30 tbr, 90k tbn, 180k tbc Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 258 kb/s Output #0, mp4, to 'concatenated.mp4': Metadata: encoder : Lavf58.74.100 Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, q=2-31, 30 tbr, 90k tbn, 90k tbc Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 258 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x [mpegts @ 00000272e61fcec0] Packet corrupt (stream = 0, dts = 664006). [mpegts @ 00000272e61fcec0] DTS 126018 < 664006 out of order frame= 510 fps=0.0 q=-1.0 Lsize= 35890kB time=00:00:17.00 bitrate=17292.3kbits/s speed= 237x video:35340kB audio:538kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.036390% ---------------- _______________________________________________ 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".
