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Autoselect AV1 over H.264 on RK3588

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This commit is contained in:
Cameron Gutman 2025-12-21 14:59:08 -06:00
commit 7f54662160
1 changed files with 8 additions and 2 deletions
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10
app/streaming/session.cpp
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@ -819,7 +819,7 @@ bool Session::initialize(QQuickWindow* qtWindow)
} }
#else #else
// Deprioritize AV1 unless we can't hardware decode HEVC, and have HDR enabled // Deprioritize AV1 unless we can't hardware decode HEVC, and have HDR enabled
// or we're on Windows. // or we're on Windows or a non-x86 Linux/BSD.
// //
// Normally, we'd assume hardware that can't decode HEVC definitely can't decode // Normally, we'd assume hardware that can't decode HEVC definitely can't decode
// AV1 either, and we wouldn't even bother probing for AV1 support. However, some // AV1 either, and we wouldn't even bother probing for AV1 support. However, some
@ -830,10 +830,16 @@ bool Session::initialize(QQuickWindow* qtWindow)
// to decode HEVC in hardware normally using VAAPI. // to decode HEVC in hardware normally using VAAPI.
// https://www.reddit.com/r/GeForceNOW/comments/1omsckt/psa_be_wary_of_purchasing_dell_computers_with/ // https://www.reddit.com/r/GeForceNOW/comments/1omsckt/psa_be_wary_of_purchasing_dell_computers_with/
// //
// Some embedded Linux platforms have incomplete V4L2 decoding support which can
// lead to unusual cases where a system might support H.264 and AV1 but not HEVC,
// even if the underlying hardware supports all three. RK3588 is an example of
// such a SoC. To handle this situation, we will also probe for AV1 if we're on
// a non-x86 non-macOS UNIX system.
//
// We want to keep AV1 at the top of the list for HDR with software decoding // 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. // because dav1d is higher performance than FFmpeg's HEVC software decoder.
if (hevcDA == DecoderAvailability::Hardware if (hevcDA == DecoderAvailability::Hardware
#ifndef Q_OS_WIN32 #if !defined(Q_OS_WIN32) && (!(defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)) || defined(Q_PROCESSOR_X86))
|| !m_Preferences->enableHdr || !m_Preferences->enableHdr
#endif #endif
) { ) {