我通过混合音频和视频创建了一个视频。使用
ffmpeg -i video.mp4 -i a.mp3 -vcodec copy -acodec copy -map 0.0 -map 1.0 -shortest output.mp4
它在VLC播放器中运行良好，但在JWPlayer中没有声音。它还在启动视频之前缓冲整个视频。 如何解决这个问题。
这是ffmpeg命令的输出。
FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
built on Jan 29 2012 23:55:02 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 -- mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable- libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable- libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 -- enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared -- enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
libavutil 50.15. 1 / 50.15. 1
libavcodec 52.72. 2 / 52.72. 2
libavformat 52.64. 2 / 52.64. 2
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.19. 0 / 1.19. 0
libswscale 0.11. 0 / 0.11. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
Duration: 00:01:17.48, start: 0.000000, bitrate: 614 kb/s
Stream #0.0(und): Video: h264, yuv420p, 640x360, 515 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc
Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 96 kb/s
[mp3 @ 0x1258e440]max_analyze_duration reached
[mp3 @ 0x1258e440]Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'a.mp3':
Metadata:
TSSE : Lavf52.64.2
Duration: 00:06:53.52, start: 0.000000, bitrate: 64 kb/s
Stream #1.0: Audio: mp3, 44100 Hz, 2 channels, s16, 64 kb/s
File 'output.mp4' already exists. Overwrite ? [y/N] y
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf52.64.2
Stream #0.0(und): Video: libx264, yuv420p, 640x360, q=2-31, 515 kb/s, 60k tbn, 29.97 tbc
Stream #0.1: Audio: libmp3lame, 44100 Hz, 2 channels, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #1.0 -> #0.1
Press [q] to stop encoding
frame= 2322 fps= 0 q=-1.0 Lsize= 5526kB time=77.48 bitrate= 584.3kbits/s
video:4878kB audio:605kB global headers:0kB muxing overhead 0.777738%