D:\>(for %i in (*.mp4) do @echo file '%i')>mylist.txt
D:\>type mylist.txt
file '20250201-30.mp4'
file '20250202-30.mp4'
file '20250203-30.mp4'
file '20250204-30.mp4'
D:\>ffmpeg -f concat -i mylist.txt -c copy myout.mp4
ffmpeg version N-110091-g261fb55e39-20230326 Copyright (c)
2000-2023 the FFmpeg developers
built with gcc 12.2.0 (crosstool-NG 1.25.0.152_89671bf)
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000026fe040a3c0] Auto-inserting
h264_mp4toannexb bitstream filter
Input #0, concat, from 'mylist.txt':
Duration: N/A, start: -0.021333, bitrate: 1828 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 938x528 [SAR 1:1 DAR 469:264], 1699 kb/s, 30 fps, 30 tbr, 15360 tbn
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
encoder : Lavc60.6.101 libx264
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
Output #0, mp4, to 'myout.mp4':
Metadata:
encoder : Lavf60.4.100
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 938x528 [SAR 1:1 DAR 469:264], q=2-31, 1699 kb/s, 30 fps, 30 tbr, 15360 tbn
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
encoder : Lavc60.6.101 libx264
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s
Metadata:
handler_name : SoundHandler
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
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000026fe1e59a00] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0000026fe2081440] Non-monotonous DTS in output stream 0:1; previous: 1440768, current: 1440000; changing to 1440769. This may result in incorrect timestamps in the output file.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000026fe2260580] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0000026fe2081440] aac bitstream error
Last message repeated 173 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:04.29 bitrate=1565.7kbits/s speed= 128x
Last message repeated 242 times
[mp4 @ 0000026fe2081440] aac bitstream errortime=00:01:10.12 bitrate=1555.1kbits/s speed=69.8x
Last message repeated 237 times
[mp4 @ 0000026fe2081440] aac bitstream errortime=00:01:15.86 bitrate=1575.7kbits/s speed=50.4x
Last message repeated 240 times
[mp4 @ 0000026fe2081440] aac bitstream errortime=00:01:21.62 bitrate=1593.0kbits/s speed=40.7x
Last message repeated 241 times
[mp4 @ 0000026fe2081440] aac bitstream errortime=00:01:27.42 bitrate=1583.1kbits/s speed=34.9x
Last message repeated 109 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000026fe1e59a00] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0000026fe2081440] aac bitstream error
Last message repeated 126 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:33.18 bitrate=1665.3kbits/s speed= 31x
Last message repeated 244 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:39.06 bitrate=1693.6kbits/s speed=28.2x
Last message repeated 233 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:44.68 bitrate=1682.7kbits/s speed=26.1x
Last message repeated 240 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:50.46 bitrate=1727.6kbits/s speed=24.5x
Last message repeated 242 times
[mp4 @ 0000026fe2081440] aac bitstream errorime=00:01:56.29 bitrate=1713.1kbits/s speed=23.2x
Last message repeated 156 times
[mp4 @ 0000026fe2081440] aac bitstream error
Last message repeated 4 times
frame= 3604 fps=672 q=-1.0 Lsize= 25326kB time=00:02:00.06 bitrate=1728.0kbits/s speed=22.4x
video:23319kB audio:1881kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.498685%
D:\>ffprobe -i myout.mp4
ffprobe version N-110091-g261fb55e39-20230326 Copyright (c) 2007-2023 the FFmpeg developers
built with gcc 12.2.0 (crosstool-NG 1.25.0.152_89671bf)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-shared --disable-static --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --disable-libmfx --enable-libvpl --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230326
libavutil 58. 5.100 / 58. 5.100
libavcodec 60. 6.101 / 60. 6.101
libavformat 60. 4.100 / 60. 4.100
libavdevice 60. 2.100 / 60. 2.100
libavfilter 9. 5.100 / 9. 5.100
libswscale 7. 2.100 / 7. 2.100
libswresample 4. 11.100 / 4. 11.100
libpostproc 57. 2.100 / 57. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'myout.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf60.4.100
Duration: 00:02:00.15, start: 0.000000, bitrate: 1726 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 938x528 [SAR 1:1 DAR 469:264], 1590 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
encoder : Lavc60.6.101 libx264
Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
D:\>