ffmpeg用法将视频编码为H264编解码器格式 [英] ffmpeg usage to encode a video to H264 codec format
问题描述
我有一个* .mp4视频文件(MPEG4视频编解码器)，我试图在Linux(版本-FFmpeg版本SVN-r0.5.1)上使用ffmpeg将其转换为H264视频编解码器格式(原始h.264格式). -4:0.5.1-1ubuntu1，版权(c)2000-2009 Fabrice Bellard，)，使用命令行，如下所示，
I have a *.mp4 video file(MPEG4 video codec) and I am trying to convert this to a H264 video codec format(raw h.264 format) using ffmpeg on Linux(Version - FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard,) using command line as shown below,
ffmpeg -i input .mp4 output.h264
但我收到一条错误消息-
but I get an error saying -
Unsupported codec for output stream #0.0
然后，当我尝试此选项时:
Then when i try this option:
ffmpeg -i input .mp4 -formats h264 output.h264
它仍然不起作用，并给出-
it still does not work, and gives -
Seems stream 0 codec frame rate differs from container frame rate: 59.94 (5994/100) -> 29.97 (30000/1001)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Rapture.mp4':
Duration: 00:02:06.44, start: 0.000000, bitrate: 26574 kb/s
Stream #0.0(eng): Video: h264, yuv420p, 1920x1080, 29.97 tbr, 29.97 tbn, 59.94 tbc
Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16
然后将打印出有关我们执行ffmpeg -formats
And then it prints out help on the formats which we get when we do ffmpeg -formats
当我查看帮助ffmpeg -formats时，我看到以下与H264文件格式和编解码器有关的信息:
When I checked the help, ffmpeg -formats, I see below information related to H264 file format and codec:
File format :
DE h264 raw H.264 video format
Codecs:
D V D h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
我的问题:
-
如何将视频转换为H264编码的视频(原始H264视频格式)
How can I convert the video to a H264 encoded video (raw H264 video format)
当我执行ffmpeg -formats时，会看到很多支持的编解码器的缩写，在编解码器名称/类型之前看到了很多的缩写，例如-DVDSEA，它们代表什么?
When I do ffmpeg -formats, I see many acronyms for the codecs supported, I see many acronyms before the codec name/type such as - D V D S E A, what do they stand for?
如何使用ffmpeg选项-vcodec和-formats?
How to use the ffmpeg options -vcodec and -formats?
推荐答案
我相信您已经安装了libx264并配置了ffmpeg可以将视频转换为h264 ...然后可以尝试使用-vcodec libx264. .. -format选项用于显示可用格式，我认为这不是转换选项...
I believe you have libx264 installed and configured with ffmpeg to convert video to h264... Then you can try with -vcodec libx264... The -format option is for showing available formats, this is not a conversion option I think...
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