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lavc/videotoolboxenc: Speed/Quality prioriry setting 

Add options to h264, hevc and prores encoders to prioritize speed.
Speeds up encoding by 50% - 70%

Signed-off-by: Simone Karin Lehmann <simone@lisanet.de>
Signed-off-by: Rick Kern <kernrj@gmail.com>
This commit is contained in:
Simone Karin Lehmann 2022-05-01 21:07:47 +02:00 committed by Rick Kern
parent 4d52d8c9f6
commit b67572c7c7
1 changed files with 16 additions and 1 deletions
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17
libavcodec/videotoolboxenc.c
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@ -100,6 +100,7 @@ static struct{
CFStringRef kVTCompressionPropertyKey_RealTime;
CFStringRef kVTCompressionPropertyKey_TargetQualityForAlpha;
CFStringRef kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality;
CFStringRef kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder;
CFStringRef kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder;
@ -161,6 +162,8 @@ static void loadVTEncSymbols(){
GET_SYM(kVTCompressionPropertyKey_RealTime, "RealTime");
GET_SYM(kVTCompressionPropertyKey_TargetQualityForAlpha,
"TargetQualityForAlpha");
GET_SYM(kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality,
"PrioritizeEncodingSpeedOverQuality");
GET_SYM(kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
"EnableHardwareAcceleratedVideoEncoder");
@ -237,6 +240,7 @@ typedef struct VTEncContext {
int allow_sw;
int require_sw;
double alpha_quality;
int prio_speed;
bool flushing;
int has_b_frames;
@ -1146,6 +1150,15 @@ static int vtenc_create_encoder(AVCodecContext *avctx,
return AVERROR_EXTERNAL;
}
if (vtctx->prio_speed >= 0) {
status = VTSessionSetProperty(vtctx->session,
compat_keys.kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality,
vtctx->prio_speed ? kCFBooleanTrue : kCFBooleanFalse);
if (status) {
av_log(avctx, AV_LOG_WARNING, "PrioritizeEncodingSpeedOverQuality property is not supported on this device. Ignoring.\n");
}
}
if ((vtctx->codec_id == AV_CODEC_ID_H264 || vtctx->codec_id == AV_CODEC_ID_HEVC)
&& max_rate > 0) {
bytes_per_second_value = max_rate >> 3;
@ -2682,7 +2695,9 @@ static const enum AVPixelFormat prores_pix_fmts[] = {
{ "frames_before", "Other frames will come before the frames in this session. This helps smooth concatenation issues.", \
OFFSET(frames_before), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
{ "frames_after", "Other frames will come after the frames in this session. This helps smooth concatenation issues.", \
OFFSET(frames_after), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
OFFSET(frames_after), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
{ "prio_speed", "prioritize encoding speed", OFFSET(prio_speed), AV_OPT_TYPE_BOOL, \
{ .i64 = -1 }, -1, 1, VE }, \
#define OFFSET(x) offsetof(VTEncContext, x)
static const AVOption h264_options[] = {