我是 ffmpeg 的新手，我正在尝试将 .avi 转换为 pro res 格式的 .mov。
到目前为止我所拥有的是：
ffmpeg -probesize 5000000 -r 25 -i movie.avi -r 25 -codec:v prores \
-profile:v 3 -codec:a pcm_s16le -filter_complex asetnsamples=n=16384:p=0 movie.mov
影片长度不到一分钟，分辨率为 1920x1080。音频为 16 位立体声，44kHz，以 25 fps 运行。我只想确保所有参数都正确无误，仅此而已。谢谢。控制台弹出的内容如下：
ffmpeg -probesize 5000000 -r 25 -i D:\movie.avi -r 25 -codec:v prores -profile:v 3
odec:a pcm_s16le -filter_complex asetnsamples=n=16384:p=0 movie.mov
ffmpeg version N-55515-gbbbd959 Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 13 2013 18:01:31 with gcc 4.7.3 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --e
ble-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-li
tmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libv
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 42.100 / 52. 42.100
libavcodec 55. 27.100 / 55. 27.100
libavformat 55. 13.102 / 55. 13.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
[avi @ 02947c80] non-interleaved AVI
[avi @ 02947c80] Stream #0: not enough frames to estimate rate; consider increasing probesize
[avi @ 02947c80] Stream #1: not enough frames to estimate rate; consider increasing probesize
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avi, from 'D:\movie.avi':
Duration: 00:00:29.08, start: 0.000000, bitrate: 1245583 kb/s
Stream #0:0: Video: rawvideo, bgr24, 1920x1080, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Output #0, mov, to 'movie.mov':
Metadata:
encoder : Lavf55.13.102
Stream #0:0: Audio: pcm_s16le (sowt / 0x74776F73), 44100 Hz, stereo, s16, 1411 kb/s
Stream #0:1: Video: prores (apch) (apch / 0x68637061), yuv422p10le, 1920x1080, q=2-31, 200 kb/s, 12800 tbn, 25 tbc
Stream mapping:
Stream #0:1 (pcm_s16le) -> asetnsamples (graph 0)
asetnsamples (graph 0) -> Stream #0:0 (pcm_s16le)
Stream #0:0 -> #0:1 (rawvideo -> prores)
Press [q] to stop, [?] for help
frame= 727 fps= 11 q=0.0 Lsize= 757331kB time=00:00:29.08 bitrate=213344.4kbits/s
video:752314kB audio:5009kB subtitle:0 global headers:0kB muxing overhead 0.000950%