Merge video with ffmpeg

Question

I have tried this command: ffmpeg -i 'concat:10.mov|11.mov' -codec copy out.mov The output file out.mov only shows whats in the first movie (10.mov).

Been googling for several hours and tried lots of things but nothing works. I want this done without re-encoding the files. Just merge with the same codec ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.42.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff678802600] Found duplicated MOOV Atom. Skipped it Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:10.mov|11.mov': Metadata: creation_time : 2017-03-17T12:15:22.000000Z major_brand : qt
minor_version : 537134592 compatible_brands: qt
Duration: 00:00:29.96, start: 0.000000, bitrate: 140810 kb/s Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720, 116735 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 5k tbn, 5k tbc (default) Metadata: handler_name : Telestream Inc. Telestream Media Framework - Local 99.99.999999 encoder : Apple ProRes 422 Output #0, mov, to 'out.mov': Metadata: compatible_brands: qt
major_brand : qt
minor_version : 537134592 encoder : Lavf57.56.101 Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 116735 kb/s, 50 fps, 50 tbr, 10k tbn, 5k tbc (default) Metadata: handler_name : Telestream Inc. Telestream Media Framework - Local 99.99.999999 encoder : Apple ProRes 422 Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help frame= 1498 fps=0.0 q=-1.0 Lsize= 426938kB time=00:00:29.94 bitrate=116815.8kbits/s speed=50.8x
video:426930kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001997%

Any ideas? Would make my life very much easier if I got this to work :)

Answer 1

Quicktime files have an index, so can't be joined using a dumb operation such as the concat protocol.

The concat demuxer is required for such formats:

#1 Create a text file.

file '10.mov'
file '11.mov'

#2 Join them

ffmpeg -f concat -i list.txt -c copy merged.mov