我有两个从不同的 Android 设备捕获的 mp4 文件。每个文件的 ffmpeg 输出如下所示。我可以重新编码 two.mp4 以便编码选项与 one.mp4 相同吗？我看不出这两个文件有什么不同，但它们肯定有不同，因为当我尝试使用 -vf 覆盖 jpg 时，two.mp4 无法正确编码，而似乎在编码一个大文件，我让它运行了 1 个小时，控制台没有输出。我可以使用 ffmpeg 使 two.mp4 与 one.mp4“相同”吗？
u0_a72@android:# ./ffmpeg -i /sdcard/one.mp4
ffmpeg version 0.9, Copyright (c) 2000-2011 the FFmpeg developers
built on Jun 12 2012 20:43:50 with gcc 4.4.3
configuration: --enable-cross-compile --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/org.witness.sscvideoproto --enable-pic --disable-shared --enable-static --cross-prefix=/home/n8fr8/dev/android/ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi- --sysroot=/home/n8fr8/dev/android/ndk/platforms/android-3/arch-arm --enable-version3 --enable-gpl --enable-small --enable-memalign-hack --disable-yasm --disable-doc --enable-decoder=mjpeg --enable-decoder=rawvideo --enable-encoder=libx264 --enable-muxer=mp4 --enable-demuxer=image2 --enable-demuxer=mjpeg --enable-demuxer=mp4 --enable-demuxer=mov --enable-parser=mjpeg --enable-filter=buffer --enable-filter=buffersink --enable-filter=drawbox --enable-filter=overlay --enable-filter=redact --enable-protocol=file --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib --extra-cflags=-I../x264 --extra-ldflags=-L../x264 --disabl libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 42. 0 / 53. 42. 0
libavformat 53. 24. 0 / 53. 24. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
WARNING: generic atexit() called from legacy shared library
Seems stream 0 codec frame rate differs from container frame rate: 15.00 (15/1) -> 15.00 (15/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/sdcard/jen.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2013-02-08 20:31:49
encoder : Lavf53.24.0
Duration: 00:00:03.20, start: 0.000000, bitrate: 1030 kb/s
Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR 1:1 DAR 5:4], 1247 kb/s, 8.08 fps, 15 tbr, 15 tbn, 15 tbc
Metadata:
creation_time : 2013-02-08 20:31:49
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 8000 Hz, mono, s16, 12 kb/s
Metadata:
creation_time : 2013-02-08 20:31:49
handler_name :
At least one output file must be specified
1|u0_a72@android:# ./ffmpeg -i /sdcard/two.mp4
ffmpeg version 0.9, Copyright (c) 2000-2011 the FFmpeg developers
built on Jun 12 2012 20:43:50 with gcc 4.4.3
configuration: --enable-cross-compile --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/org.witness.sscvideoproto --enable-pic --disable-shared --enable-static --cross-prefix=/home/n8fr8/dev/android/ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi- --sysroot=/home/n8fr8/dev/android/ndk/platforms/android-3/arch-arm --enable-version3 --enable-gpl --enable-small --enable-memalign-hack --disable-yasm --disable-doc --enable-decoder=mjpeg --enable-decoder=rawvideo --enable-encoder=libx264 --enable-muxer=mp4 --enable-demuxer=image2 --enable-demuxer=mjpeg --enable-demuxer=mp4 --enable-demuxer=mov --enable-parser=mjpeg --enable-filter=buffer --enable-filter=buffersink --enable-filter=drawbox --enable-filter=overlay --enable-filter=redact --enable-protocol=file --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib --extra-cflags=-I../x264 --extra-ldflags=-L../x264 --disabl libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 42. 0 / 53. 42. 0
libavformat 53. 24. 0 / 53. 24. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
WARNING: generic atexit() called from legacy shared library
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x26faaa0] multiple edit list entries, a/v desync might occur, patch welcome
Seems stream 1 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 90000.00 (180000/2)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/sdcard/41.mp4':
Metadata:
major_brand : 3gp4
minor_version : 0
compatible_brands: isom3gp4
creation_time : 1947-02-14 16:37:21
Duration: 00:00:04.22, start: 0.000000, bitrate: 2849 kb/s
Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 8000 Hz, mono, s16, 10 kb/s
Metadata:
creation_time : 1947-02-14 16:37:21
handler_name : SoundHandle
Stream #0:1(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 720x480, 3122 kb/s, SAR 65536:65536 DAR 3:2, 28.03 fps, 90k tbr, 90k tbn, 180k tbc
Metadata:
creation_time : 1947-02-14 16:37:21
handler_name : VideoHandle
At least one output file must be specified