@@ -898,6 +898,7 @@ static int vtenc_create_encoder(AVCodecContext *avctx,
{
VTEncContext *vtctx = avctx->priv_data;
SInt32 bit_rate = avctx->bit_rate;
+ SInt32 max_rate = avctx->rc_max_rate;
CFNumberRef bit_rate_num;
int status = VTCompressionSessionCreate(kCFAllocatorDefault,
@@ -938,6 +939,32 @@ static int vtenc_create_encoder(AVCodecContext *avctx,
return AVERROR_EXTERNAL;
}
+ int64_t bytes_per_second_value = max_rate >> 3;
+ CFNumberRef bytes_per_second = CFNumberCreate(kCFAllocatorDefault,
+ kCFNumberSInt64Type,
+ &bytes_per_second_value);
+ int64_t two_second_value = 2;
+ CFNumberRef two_second = CFNumberCreate(kCFAllocatorDefault,
+ kCFNumberSInt64Type,
+ &two_second_value);
+ const void* nums[2] = { bytes_per_second, two_second };
+ CFArrayRef data_rate_limits = CFArrayCreate(kCFAllocatorDefault,
+ nums,
+ 2,
+ &kCFTypeArrayCallBacks);
+
+ status = VTSessionSetProperty((VTCompressionSessionRef)(vtctx->session),
+ kVTCompressionPropertyKey_DataRateLimits,
+ data_rate_limits);
+ CFRelease(bytes_per_second);
+ CFRelease(two_second);
+ CFRelease(data_rate_limits);
+
+ if (status) {
+ av_log(avctx, AV_LOG_ERROR, "Error setting max bitrate property: %d\n", status);
+ return AVERROR_EXTERNAL;
+ }
+
if (profile_level) {
status = VTSessionSetProperty(vtctx->session,
kVTCompressionPropertyKey_ProfileLevel,
add kVTCompressionPropertyKey_DataRateLimits support by rc_max_bitrate Signed-off-by: Steven Liu <lq@chinaffmpeg.org> --- libavcodec/videotoolboxenc.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)