【OBS】FFmpe源和media处理

本文介绍了FFmpeg源在OBS中的使用,包括tick、update、active和deactive等关键操作。重点讨论了ffmpeg_source_open和ffmpeg_source_start过程,以及media.c中核心线程的数据获取和解码功能。

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FFmpe源和media处理

  • ffmepg source 是一个插件, 与deps的mediaplay 相关
  • ffmpeg source 常用插件
  • 定义文件: D:\Code\obs-studio\plugins\obs-ffmpeg\obs-ffmpeg-source.c

FFmpeg源

//定义一个源
struct obs_source_info ffmpeg_source = {
   
   
	.id = "ffmpeg_source",
	.type = OBS_SOURCE_TYPE_INPUT
### OBS Streaming Configuration for Bilibili For configuring OBS (Open Broadcaster Software) to stream on Bilibili, the process involves setting up both the software itself and ensuring that one has a properly set-up account with Bilibili. The following details cover how this can be achieved. #### Setting Up Your Stream Key from Bilibili To start streaming via OBS to Bilibili, obtaining a stream key is essential. This unique identifier allows OBS to authenticate streams directly into Bilibili's servers[^1]. Users must log into their Bilibili accounts through the platform’s official website or application interface designed specifically for live broadcasting. Once logged in, navigating to the settings area designated for live broadcasts will reveal an option to generate or view existing stream keys. #### Configuring OBS Settings After acquiring the stream key: - Open OBS Studio. - Navigate to `Settings` -> `Stream`. - Select `Custom Server` as the service type within the dropdown menu provided by OBS. - Enter the RTMP server URL specific to Bilibili which typically follows a pattern like `rtmp://live-push.bilivideo.com/live-bvc`. Ensure accuracy when inputting this address since incorrect URLs may lead to failed connections during attempts at initiating streams. - Paste the previously obtained stream key into the corresponding field labeled 'Stream Key'. #### Common Issues Encountered While Streaming Using OBS to Bilibili One common issue faced while trying to connect OBS to Bilibili includes connection timeouts due to network instability between user locations and Bilibili's servers. Adjusting buffer sizes under advanced options might help mitigate some of these problems but does not guarantee resolution entirely depending upon external factors beyond control such as ISP throttling policies applied locally where users reside. Another frequent challenge pertains to audio-video synchronization errors observable after publishing content online; tweaking encoder presets inside OBS could potentially alleviate symptoms associated here although experimentation would likely prove necessary given variability across different hardware configurations employed among individual broadcasters. ```bash ffmpeg -i "input.mp4" -c:v libx264 -preset ultrafast -maxrate 3000k -bufsize 6000k -vf "scale=1920:1080" -g 50 -c:a aac -b:a 128k output.mp4 ``` This command demonstrates adjusting video encoding parameters using FFmpeg, which can also integrate well with OBS setups aiming towards optimizing performance especially concerning A/V sync adjustments mentioned earlier. --related questions-- 1. How do I improve my internet speed for smoother streaming? 2. What are alternative platforms similar to Bilibili suitable for live streaming? 3. Can you provide tips on enhancing sound quality during livestreams? 4. Is there any way to automate social media promotion once a stream goes live?
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