本文介绍音视频编解码的基本概念和技术细节，包括主流的编解码算法、容器格式以及硬件加速方案等内容。重点探讨了FFmpeg在音视频处理领域的应用，并对比分析了几种常见的视频编解码器的优缺点。
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<esg:ESGDATA xmlns:esg="urn:cmmb:esg:2007" xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance " Ver="1.0">
<Content ContentID="1">
<ContentClass>video</ContentClass>
<ContentGenre>16</ContentGenre>
<Duration>1</Duration>
<ContentLanguageSpecial lang="zho">
<Title></Title>
<Keyword></Keyword>
<DigestInfo></DigestInfo>
<AudioLang></AudioLang>
<SubtitleLang></SubtitleLang>
</ContentLanguageSpecial>
<ServiceParaID>1</ServiceParaID>
</Content>
</esg:ESGDATA>
<esg:ESGDATA xmlns:esg="urn:cmmb:esg:2007" xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance " Ver="1.0">
<Content ContentID="1">
<ContentClass>video</ContentClass>
<ContentGenre>16</ContentGenre>
<Duration>1</Duration>
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<Title></Title>
<Keyword></Keyword>
<DigestInfo></DigestInfo>
<AudioLang></AudioLang>
<SubtitleLang></SubtitleLang>
</ContentLanguageSpecial>
<ServiceParaID>1</ServiceParaID>
</Content>
</esg:ESGDATA>
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