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关于推流的码率设置 #77

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opened 2025-12-23 10:32:25 +01:00 by backuprepo · 6 comments

backuprepo commented

2025-12-23 10:32:25 +01:00

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Originally created by @ZH-1225 on GitHub (Jul 24, 2024).

hevc_rkmpp编码器是不是不支持自动调节bitrate,必须给-b:v一个初始值

Originally created by @ZH-1225 on GitHub (Jul 24, 2024). hevc_rkmpp编码器是不是不支持自动调节bitrate,必须给-b:v一个初始值

backuprepo

2025-12-23 10:32:25 +01:00

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backuprepo commented

2025-12-23 10:32:27 +01:00

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@nyanmisaka commented on GitHub (Jul 24, 2024):

Use CQP rate control if you want to fix the quality factor instead of the bitrate.

https://github.com/nyanmisaka/ffmpeg-rockchip/wiki/Encoder#test-encoders

@nyanmisaka commented on GitHub (Jul 24, 2024): Use CQP rate control if you want to fix the quality factor instead of the bitrate. https://github.com/nyanmisaka/ffmpeg-rockchip/wiki/Encoder#test-encoders

backuprepo commented

2025-12-23 10:32:27 +01:00

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@ZH-1225 commented on GitHub (Jul 25, 2024):

Use CQP rate control if you want to fix the quality factor instead of the bitrate.

https://github.com/nyanmisaka/ffmpeg-rockchip/wiki/Encoder#test-encoders

我如果想实现利用h265参数设置-qp_init 0 之后还能再设置-maxrate吗

@ZH-1225 commented on GitHub (Jul 25, 2024): > Use CQP rate control if you want to fix the quality factor instead of the bitrate. > > https://github.com/nyanmisaka/ffmpeg-rockchip/wiki/Encoder#test-encoders 我如果想实现利用h265参数设置-qp_init 0 之后还能再设置-maxrate吗

backuprepo commented

2025-12-23 10:32:28 +01:00

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@nyanmisaka commented on GitHub (Jul 25, 2024):

From what I can tell, it's not supported. For more info you can ask in rockchip-linux/mpp.

@nyanmisaka commented on GitHub (Jul 25, 2024): From what I can tell, it's not supported. For more info you can ask in [rockchip-linux/mpp](https://github.com/rockchip-linux/mpp).

backuprepo commented

2025-12-23 10:32:29 +01:00

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@ZH-1225 commented on GitHub (Jul 25, 2024):

感谢，请问一下我现在想保持画质最高用hevc_rkmpp推流h265，然后可变码率，大概的参数应该设置成什么样子，感谢

@ZH-1225 commented on GitHub (Jul 25, 2024): 感谢，请问一下我现在想保持画质最高用hevc_rkmpp推流h265，然后可变码率，大概的参数应该设置成什么样子，感谢

backuprepo commented

2025-12-23 10:32:30 +01:00

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@ZH-1225 commented on GitHub (Jul 26, 2024):

From what I can tell, it's not supported. For more info you can ask in rockchip-linux/mpp.

请问一下我用hevc_rkmpp推流的时候怎么可以减少马赛克
Could you tell me how I can reduce the Mosaic when I push the stream with hevc_rkmpp

@ZH-1225 commented on GitHub (Jul 26, 2024): > From what I can tell, it's not supported. For more info you can ask in [rockchip-linux/mpp](https://github.com/rockchip-linux/mpp). 请问一下我用hevc_rkmpp推流的时候怎么可以减少马赛克 Could you tell me how I can reduce the Mosaic when I push the stream with hevc_rkmpp

backuprepo commented

2025-12-23 10:32:30 +01:00

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@nyanmisaka commented on GitHub (Jul 26, 2024):

Macroblocking is usually caused by insufficient bitrate in the encoder. Increase the bitrate or decrease the QP value.

@nyanmisaka commented on GitHub (Jul 26, 2024): Macroblocking is usually caused by insufficient bitrate in the encoder. Increase the bitrate or decrease the QP value.