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avcodec/videotoolboxenc: allow low latency RC with HEVC

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It is supported only for H.264 on Intel Macs, but it can be used with
both H.264 and HEVC on Apple Silicon.

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
This commit is contained in:
Cameron Gutman
2025-09-05 23:42:52 -05:00
committed by Zhao Zhili
parent 4691c56238
commit d87210745e
1 changed files with 2 additions and 1 deletions
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3
libavcodec/videotoolboxenc.c
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@@ -1709,7 +1709,8 @@ static int vtenc_configure_encoder(AVCodecContext *avctx)
#endif
// low-latency mode: eliminate frame reordering, follow a one-in-one-out encoding mode
if ((avctx->flags & AV_CODEC_FLAG_LOW_DELAY) && avctx->codec_id == AV_CODEC_ID_H264) {
if ((avctx->flags & AV_CODEC_FLAG_LOW_DELAY) &&
((avctx->codec_id == AV_CODEC_ID_H264) || (TARGET_CPU_ARM64 && avctx->codec_id == AV_CODEC_ID_HEVC))) {
CFDictionarySetValue(enc_info,
compat_keys.kVTVideoEncoderSpecification_EnableLowLatencyRateControl,
kCFBooleanTrue);