封装MP4

[emzt]

压好的H264源文件×××.264和×××.aac，用ffmpeg合并，命令

代码： 全选

ffmpeg -i xxx.264 -i xxx.aac -vcodec copy -acodec copy xxx.mp4

，结果影音不同步，ffmpeg默认是25FPS，我的源始视频是29.97FPS，现在原始文件和压好的xxx.264都删除了，只有合并的MP4文件了。怎么改MP4文件的FPS到29.97？用mkvtoolnix能转换成MKV，FPS能改成29.97，再用

代码： 全选

cd /d "%~dp0"
ffmpeg -i "%~1" -vcodec copy -acodec copy "%~dpn1.mp4"

就是不能转成MP4了

[-o-o-304-o-o-]

http://ffmpeg.org/ffmpeg.html#Video-Options

-r[:stream_specifier] fps (input/output,per-stream)’

Set frame rate (Hz value, fraction or abbreviation), (default = 25). For output streams implies -vsync cfr

[dgwxx]

或者找个mp4box重新mux一下就好了：
MP4Box.exe -add "x:\aaa.mp4:fps=29.970" -new "x:\aaa-new.mp4"

[emzt]

E:\x264\mkv-mp4>ffmpeg -i e:\033.h264 e:\0.h264 -r 29.97
ffmpeg version N-31792-g51fb933, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 11 2011 23:13:25 with gcc 4.5.2
configuration:
libavutil 51. 11. 1 / 51. 11. 1
libavcodec 53. 10. 0 / 53. 10. 0
libavformat 53. 6. 0 / 53. 6. 0
libavdevice 53. 2. 0 / 53. 2. 0
libswscale 2. 0. 0 / 2. 0. 0
[h264 @ 003886a0] max_analyze_duration 5000000 reached at 5000000
[h264 @ 003886a0] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1)
-> 25.00 (50/2)
Input #0, h264, from 'e:\033.h264':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 25 fp
s, 25 tbr, 1200k tbn, 50 tbc
Output #0, h264, to 'e:\0.h264':
Stream #0.0: Video: [0][0][0][0] / 0x0000, yuv420p, 1280x720, q=0-0, 90k tbn
, 25 tbc
Stream mapping:
Stream #0.0 -> #0.0
Encoder (codec id 28) not found for output stream #0.0
怎么改不了，ffmpeg用的是06_taro修改的

[06_taro]

timelineeditor.exe --timecode "timecodes.txt" --media-timebase 1001 --media-timescale 30000 "input.mp4" "output.mp4"

[syntax filename="timecodes.txt"]# timecode format v1
Assume 29.970030
0,50000,29.970030
[/syntax]

[emzt]

把影音不同步的MP4直接转就好了，谢谢06_taro 的软件和方法，FFMPEG转时这命令

代码： 全选

ffmpeg -i 视频流.avi -i 音频流.mp3 -vcodec copy -acodec copy 合并.mp4 

怎么加options能换用29.97FPS不用默认的？

[msg7086]

看清楚，mp4

[emzt]

我刚才转换成功了，回复改慢了。