ffmpeg將mov轉換爲flv

Question

我試圖將mov視頻轉換爲flv，但在下面不斷收到這些錯誤。 我使用了2個命令，都在下面。

ffmpeg -y -i video.mov -deinterlace -acodec copy -r 25 -qmin 3 -qmax 6 video.flv 


FFmpeg version SVN-r16573, Copyright (c) 2000-2009 Fabrice Bellard, et al. 
configuration: --extra-cflags=-fno-common --enable-memalign-hack --enable-pthreads --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libfaac --enable-libgsm --enable-libx264 --enable-libschroedinger --enable-avisynth --enable-swscale --enable-gpl 
libavutil  49.12. 0/49.12. 0 
libavcodec 52.10. 0/52.10. 0 
libavformat 52.23. 1/52.23. 1 
libavdevice 52. 1. 0/52. 1. 0 
libswscale  0. 6. 1/0. 6. 1 
built on Jan 13 2009 02:57:09, gcc: 4.2.4 
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid\video.mov': 
Duration: 00:03:16.00, start: 0.000000, bitrate: 398 kb/s 
Stream #0.0(eng): Video: mpeg4, yuv420p, 800x600 [PAR 1:1 DAR 4:3], 30.00 tb(r) 
Stream #0.1(eng): Audio: pcm_u8, 8000 Hz, mono, s16, 64 kb/s 
Output #0, flv, to 'vid\video.flv': 
Stream #0.0(eng): Video: flv, yuv420p, 800x600 [PAR 1:1 DAR 4:3], q=3-6, 200 kb/s, 25.00 tb(c) 
Stream #0.1(eng): Audio: pcm_u8, 8000 Hz, mono, s16, 64 kb/s 
Stream mapping: 
Stream #0.0 -> #0.0 
Stream #0.1 -> #0.1 
[NULL @ 0x1714390]codec not compatible with flv 
Could not write header for output file #0 (incorrect codec parameters ?) 

第二個命令：

ffmpeg -y -i video.mov -deinterlace -ar 44100 -r 25 -qmin 3 -qmax 6 video.flv 

音頻重採樣只適用於每個採樣16位，補丁歡迎。

有關ffmpeg的新版本：

ffmpeg version N-49610-gc2dd5a1 Copyright (c) 2000-2013 the FFmpeg developers 
built on Feb 5 2013 13:20:59 with gcc 4.7.2 (GCC) 
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib 
    libavutil  52. 17.101/52. 17.101 
    libavcodec  54. 91.100/54. 91.100 
    libavformat 54. 61.104/54. 61.104 
    libavdevice 54. 3.103/54. 3.103 
    libavfilter  3. 35.101/3. 35.101 
    libswscale  2. 2.100/2. 2.100 
    libswresample 0. 17.102/0. 17.102 
    libpostproc 52. 2.100/52. 2.100 
Guessed Channel Layout for Input Stream #0.1 : mono 
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid\video.mov': 
    Metadata: 
    major_brand  : qt 
    minor_version : 512 
    compatible_brands: qt 
    creation_time : 1970-01-01 00:00:00 
    Duration: 00:02:50.39, start: 0.000000, bitrate: 370 kb/s 
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v/0x7634706D), yuv420p, 1366x768 [SAR 1:1 DAR 683:384], 308 kb/s, 11.50 fps, 11.50 tbr, 23 tbn, 23 tbc 
    Metadata: 
     creation_time : 1970-01-01 00:00:00 
     handler_name : DataHandler 
    Stream #0:1(eng): Audio: pcm_u8 (raw/0x20776172), 8000 Hz, mono, u8, 64 kb/s 
    Metadata: 
     creation_time : 1970-01-01 00:00:00 
     handler_name : DataHandler 
[flv @ 026347a0] FLV does not support sample rate 8000, choose from (44100, 22050, 11025) 
Output #0, flv, to 'vid\video.flv': 
    Metadata: 
    major_brand  : qt 
    minor_version : 512 
compatible_brands: qt 
    encoder   : Lavf54.61.104 
    Stream #0:0(eng): Video: flv1 ([2][0][0][0]/0x0002), yuv420p, 1366x768 [SAR 1:1 DAR 683:384], q=2-31, 200 kb/s, 1k tbn, 11.50 tbc 
    Metadata: 
     creation_time : 1970-01-01 00:00:00 
     handler_name : DataHandler 
    Stream #0:1(eng): Audio: mp3 ([2][0][0][0]/0x0002), 8000 Hz, mono, s16p 
    Metadata: 
     creation_time : 1970-01-01 00:00:00 
     handler_name : DataHandler 
Stream mapping: 
    Stream #0:0 -> #0:0 (mpeg4 -> flv) 
    Stream #0:1 -> #0:1 (pcm_u8 -> libmp3lame) 
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input 

1兩件事請： 如果我使用的ffmpeg的這個新版本，以創建具有以下命令的視頻，我得到一個非常朦朧的顯示視頻。 這就像一個空白屏幕上的幾個黑點：

ffmpeg -i img%d.png -i audio.wav -acodec copy output.mov 

什麼可能爲這臺顯示器的原因是什麼？

Answer 1

你可以嘗試簡單：

ffmpeg -y -i video.mov video.flv 

在第一個命令的音頻編解碼器是pcm_u8，也不符合flv兼容。由於您使用了-acodec copy，因此會導致錯誤。在第二個命令中，重採樣導致了一個問題。