> From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of Jun Zhao
> Sent: 2023年8月31日 22:50
> To: ffmpeg-devel@ffmpeg.org
> Cc: Jun Zhao <barryjz...@tencent.com>; Jun Zhao <mypopy...@gmail.com>
> Subject: [FFmpeg-devel] [PATCH 2/2] lavc/videotoolboxenc: enable low-latency
> mode for HEVC
>
> Enable the HEVC encoder that supports low-latency mode.
>
> Signed-off-by: Jun Zhao <barryjz...@tencent.com>
> ---
> libavcodec/videotoolboxenc.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c
> index 8e493c4f7a..bfc03787a0 100644
> --- a/libavcodec/videotoolboxenc.c
> +++ b/libavcodec/videotoolboxenc.c
> @@ -1568,7 +1568,8 @@ 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 || avctx->codec_id ==
> AV_CODEC_ID_HEVC)) {
How about just remove the codec_id check?
Is there any unwelcome side effects for encoders other than H264/HEVC?
> CFDictionarySetValue(enc_info,
>
> compat_keys.kVTVideoEncoderSpecification_EnableLowLatencyRateControl,
> kCFBooleanTrue);
> --
> 2.25.1
>
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