Method set_fallback

libs/scrap/src/common/codec.rs:355–395

(config: &EncoderCfg)

    }

    pub fn set_fallback(config: &EncoderCfg) {
        let format = match config {
            EncoderCfg::VPX(vpx) => match vpx.codec {
                VpxVideoCodecId::VP8 => CodecFormat::VP8,
                VpxVideoCodecId::VP9 => CodecFormat::VP9,
            },
            EncoderCfg::AOM(_) => CodecFormat::AV1,
            #[cfg(feature = "hwcodec")]
            EncoderCfg::HWRAM(hw) => {
                let name = hw.name.to_lowercase();
                if name.contains("vp8") {
                    CodecFormat::VP8
                } else if name.contains("vp9") {
                    CodecFormat::VP9
                } else if name.contains("av1") {
                    CodecFormat::AV1
                } else if name.contains("h264") {
                    CodecFormat::H264
                } else {
                    CodecFormat::H265
                }
            }
            #[cfg(feature = "vram")]
            EncoderCfg::VRAM(vram) => match vram.feature.data_format {
                hwcodec::common::DataFormat::H264 => CodecFormat::H264,
                hwcodec::common::DataFormat::H265 => CodecFormat::H265,
                _ => {
                    log::error!(
                        "should not reach here, vram not support {:?}",
                        vram.feature.data_format
                    );
                    return;
                }
            },
        };
        let current = ENCODE_CODEC_FORMAT.lock().unwrap().clone();
        if current != format {
            log::info!("codec fallback: {:?} -> {:?}", current, format);
            *ENCODE_CODEC_FORMAT.lock().unwrap() = format;
        }
    }

    pub fn use_i444(config: &EncoderCfg) -> bool {
        let decodings = PEER_DECODINGS.lock().unwrap().clone();