我已经使用ffmpeg将许多视频转换为mp4,并在电视上播放良好。但是,自从我将笔记本电脑更换为新笔记本电脑以来,我的转换内容无法加载到电视上。
我曾尝试下载较旧的ffmpeg Windows版本,也曾尝试下载win-32版本,这不好。(我使用的是带有Windows 10 64位的x64笔记本电脑,就像以前的笔记本电脑一样)我也尝试添加-pix_fmt yuv420p
,仍然不好。
这是我以前使用ffmpeg进行转换的代码:ffmpeg -f concat -i "D:\Convert\LISTCAM.TXT" -c:v libx264 -c:a aac -pix_fmt yuv420p "Apr 2nd.mp4"
[我也试图用ffmpeg -i
比较可播放的mp4文件和新的不可播放的mp4,除了编码器头外,两者都差不多。
可播放mp4:
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\2020-DEC\Dec 13-PSTM-001.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.83.100
Duration: 01:01:47.46, start: 0.000000, bitrate: 1586 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x714 [SAR 1071:1072 DAR 120:67], 1450 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
Metadata:
handler_name : SoundHandler
At least one output file must be specified
不可播放的mp4:
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Convert\TEST.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.20.100
Duration: 00:00:18.54, start: 0.000000, bitrate: 4483 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x808, 4517 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : video.264#trackID=1:fps=23.976 - Imported with GPAC 0.5.0-rev
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : GPAC ISO Audio Handler
At least one output file must be specified
更新:
ffmpeg -i "Playable-video-file.mp4" -c:v copy -c:a aac "Output.mp4"
有效[ffmpeg -i "Playable-video-file.mp4" -c:a libx264 -crf 23 -profile:v main -level:v 3.0 -preset:v medium -c:a aac "Output.mp4"
,但不是
-f concat
意味着您要串联多个文件,首先要确保它们在转换之前和之后都将单独播放,然后再尝试通过添加以下内容来指定x264配置文件和级别:
-c:v libx264 -crf 23 -profile:v main -level:v 3.0 -preset:v medium
CRF和预设为默认值,如果可以,但是您想要更多的质量/速度,只需对其进行调整。
我还将使用已经作为测试文件播放的文件,而不是输入列表,而是从已知商品开始并从那里开始工作。
完整的命令行为:
ffmpeg -f concat -i "D:\Convert\LISTCAM.TXT" -pix_fmt yuv420p -c:v libx264 -crf 23 -profile:v main -level:v 3.0 -preset:v medium -c:a aac "Apr 2nd.mp4"