[FFmpeg-devel] [PATCH] lavc/qsvenc: set BRCParamMultiplier to aviod BRC overflow

[Carl Eugen Hoyos]

2019-01-11 13:09 GMT+01:00, Zhong Li <zhong.li at intel.com>:
> +    //libmfx BRC parameters are 16 bits thus maybe overflow, then
> BRCParamMultiplier is needed
> +    target_bitrate_kbps = avctx->bit_rate / 1000;
> +    max_bitrate_kbps = avctx->rc_max_rate / 1000;
> +    brc_param_multiplier = (FFMAX(target_bitrate_kbps, max_bitrate_kbps) +
> 0x10000) / 0x10000;

How will this behave if the user sets 100MBit?

Carl Eugen