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Prioritize AV1 over HEVC for HDR with software decoding

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dav1d is much faster than FFmpeg's HEVC decoder
This commit is contained in:
Cameron Gutman 2024-08-20 01:30:33 -05:00
commit e662e93a53
1 changed files with 18 additions and 4 deletions
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22
app/streaming/session.cpp
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@ -720,7 +720,12 @@ bool Session::initialize()
m_StreamConfig.width,
m_StreamConfig.height,
m_StreamConfig.fps) != DecoderAvailability::Hardware) {
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_H265);
// Deprioritize HEVC unless the user forced software decoding and enabled HDR.
// We need HEVC in that case because we cannot support 10-bit content with H.264,
// which would ordinarily be prioritized for software decoding performance.
if (m_Preferences->videoDecoderSelection != StreamingPreferences::VDS_FORCE_SOFTWARE || !m_Preferences->enableHdr) {
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_H265);
}
}
#if 0
@ -733,11 +738,20 @@ bool Session::initialize()
m_StreamConfig.width,
m_StreamConfig.height,
m_StreamConfig.fps) != DecoderAvailability::Hardware) {
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_AV1 & VIDEO_FORMAT_MASK_YUV444);
// Deprioritize AV1 unless the user forced software decoding and enabled HDR.
// We want to keep AV1 at the top of the list for HDR with software decoding
// because dav1d is higher performance than FFmpeg's HEVC software decoder.
if (m_Preferences->videoDecoderSelection != StreamingPreferences::VDS_FORCE_SOFTWARE || !m_Preferences->enableHdr) {
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_AV1);
}
}
#else
// Deprioritize AV1 by default in Auto mode
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_AV1);
// Deprioritize AV1 unless the user forced software decoding and enabled HDR.
// We want to keep AV1 at the top of the list for HDR with software decoding
// because dav1d is higher performance than FFmpeg's HEVC software decoder.
if (m_Preferences->videoDecoderSelection != StreamingPreferences::VDS_FORCE_SOFTWARE || !m_Preferences->enableHdr) {
m_SupportedVideoFormats.deprioritizeByMask(VIDEO_FORMAT_MASK_AV1);
}
#endif
#ifdef Q_OS_DARWIN