srs gop缓冲

致一

已于 2024-05-07 15:08:46 修改

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分类专栏： srs5.0 文章标签： srs gop rtmp

于 2017-03-02 17:30:08 首次发布

本文链接：https://blog.youkuaiyun.com/lcalqf/article/details/59564961

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本文通过源码分析，深入探讨SRS服务器在处理Gop缓冲时的具体流程，尤其是在src/app/srs_app_source.cpp中的实现细节，并通过断点调试揭示数据Gop在缓冲过程中的关键步骤。

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源码在 src/app/srs_app_source.cpp中

**
* cache a gop of video/audio data,
* delivery at the connect of flash player,
* to enable it to fast startup.
*/
class SrsGopCache
{
private:
    /**
    * if disabled the gop cache,
    * the client will wait for the next keyframe for h264,
    * and will be black-screen.
    */
    bool enable_gop_cache;
    /**
    * the video frame count, avoid cache for pure audio stream.
    */
    int cached_video_count;
    /**
    * when user disabled video when publishing, and gop cache enalbed,
    * we will cache the audio/video for we already got video, but we never
    * know when to clear the gop cache, for there is no video in future,
    * so we must guess whether user disabled the video.
    *

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