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Don't populate QP rate control fallbacks for encoders guaranteed to support CBR/VBR

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It just needlessly slows down encoder probing when the encoder or codec is not supported.
This commit is contained in:
Cameron Gutman 2024-01-24 21:46:28 -06:00
commit 38d45b39ae
1 changed files with 21 additions and 15 deletions
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36
src/video.cpp
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@ -379,6 +379,10 @@ namespace video {
std::vector<option_t> sdr_options;
std::vector<option_t> hdr_options;
std::vector<option_t> fallback_options;
// QP option to set in the case that CBR/VBR is not supported
// by the encoder. If CBR/VBR is guaranteed to be supported,
// don't specify this option to avoid wasteful encoder probing.
std::optional<option_t> qp;
std::string name;
@ -595,7 +599,7 @@ namespace video {
{},
// Fallback options
{},
std::nullopt, // QP
std::nullopt, // QP rate control fallback
"av1_nvenc"s,
},
{
@ -607,7 +611,7 @@ namespace video {
{},
// Fallback options
{},
std::nullopt, // QP
std::nullopt, // QP rate control fallback
"hevc_nvenc"s,
},
{
@ -619,7 +623,7 @@ namespace video {
{},
// Fallback options
{},
std::nullopt, // QP
std::nullopt, // QP rate control fallback
"h264_nvenc"s,
},
PARALLEL_ENCODING | REF_FRAMES_INVALIDATION // flags
@ -660,7 +664,7 @@ namespace video {
{},
// Fallback options
{},
std::nullopt,
std::nullopt, // QP rate control fallback
"av1_nvenc"s,
},
{
@ -684,7 +688,7 @@ namespace video {
{ "profile"s, (int) nv::profile_hevc_e::main_10 },
},
{}, // Fallback options
std::nullopt,
std::nullopt, // QP rate control fallback
"hevc_nvenc"s,
},
{
@ -705,7 +709,7 @@ namespace video {
},
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>({ "qp"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"h264_nvenc"s,
},
PARALLEL_ENCODING
@ -735,7 +739,7 @@ namespace video {
{},
// Fallback options
{},
std::make_optional<encoder_t::option_t>({ "qp"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"av1_qsv"s,
},
{
@ -759,7 +763,7 @@ namespace video {
},
// Fallback options
{},
std::make_optional<encoder_t::option_t>({ "qp"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"hevc_qsv"s,
},
{
@ -786,7 +790,7 @@ namespace video {
{
{ "low_power"s, 0 }, // Some old/low-end Intel GPUs don't support low power encoding
},
std::make_optional<encoder_t::option_t>({ "qp"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"h264_qsv"s,
},
PARALLEL_ENCODING | CBR_WITH_VBR | RELAXED_COMPLIANCE | NO_RC_BUF_LIMIT
@ -812,7 +816,7 @@ namespace video {
{}, // SDR-specific options
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>({ "qp_p"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"av1_amf"s,
},
{
@ -833,7 +837,7 @@ namespace video {
{}, // SDR-specific options
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>({ "qp_p"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"hevc_amf"s,
},
{
@ -857,7 +861,7 @@ namespace video {
{
{ "usage"s, 2 /* AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY */ }, // Workaround for https://github.com/GPUOpen-LibrariesAndSDKs/AMF/issues/410
},
std::make_optional<encoder_t::option_t>({ "qp_p"s, &config::video.qp }),
std::nullopt, // QP rate control fallback
"h264_amf"s,
},
PARALLEL_ENCODING
@ -883,7 +887,9 @@ namespace video {
{}, // SDR-specific options
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>("qp"s, &config::video.qp),
// QP rate control fallback
std::nullopt,
#ifdef ENABLE_BROKEN_AV1_ENCODER
// Due to bugs preventing on-demand IDR frames from working and very poor
@ -908,7 +914,7 @@ namespace video {
{}, // SDR-specific options
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>("qp"s, &config::video.qp),
std::nullopt, // QP rate control fallback
"libx265"s,
},
{
@ -920,7 +926,7 @@ namespace video {
{}, // SDR-specific options
{}, // HDR-specific options
{}, // Fallback options
std::make_optional<encoder_t::option_t>("qp"s, &config::video.qp),
std::nullopt, // QP rate control fallback
"libx264"s,
},
H264_ONLY | PARALLEL_ENCODING | ALWAYS_REPROBE