用C语言实现将MP4中的音频提取到MP3中,采用ffmpeg和lamemp3
时间: 2024-06-04 21:12:50 浏览: 17
库,有什么思路和步骤?
Thank you for your question. To extract audio from an MP4 file and save it as an MP3 file using C language, you need to use the ffmpeg library to demux the audio stream from the MP4 file and decode it, then use the lame MP3 library to encode and save it as an MP3 file.
Here are the general steps you can follow:
1. Use the ffmpeg library to open the MP4 file and find the audio stream in it.
2. Use the ffmpeg library to decode the audio data from the audio stream.
3. Use the lame MP3 library to encode the decoded audio data as MP3 data.
4. Write the MP3 data to an MP3 file.
Please note that the specific implementation details may vary depending on the version of ffmpeg and lame MP3 library you are using, as well as the input and output file formats and codecs. You will need to consult the documentation and examples of these libraries and adjust the code accordingly.
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