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vaapi_encode: Pass framerate parameters to driver 

Only do this when building for a recent VAAPI version - initial
driver implementations were confused about the interpretation of the
framerate field, but hopefully this will be consistent everywhere
once 0.40.0 is released.
This commit is contained in:
Mark Thompson 2016-11-29 22:12:46 +00:00
parent eddfb57210
commit ff35aa8ca4
2 changed files with 22 additions and 0 deletions
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18
libavcodec/vaapi_encode.c
View File

@ -1116,6 +1116,7 @@ static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
int rc_window_size;
int hrd_buffer_size;
int hrd_initial_buffer_fullness;
int fr_num, fr_den;
if (avctx->rc_buffer_size)
hrd_buffer_size = avctx->rc_buffer_size;
@ -1166,6 +1167,23 @@ static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
ctx->global_params_size[ctx->nb_global_params++] =
sizeof(ctx->hrd_params);
if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
av_reduce(&fr_num, &fr_den,
avctx->framerate.num, avctx->framerate.den, 65535);
else
av_reduce(&fr_num, &fr_den,
avctx->time_base.den, avctx->time_base.num, 65535);
ctx->fr_params.misc.type = VAEncMiscParameterTypeFrameRate;
ctx->fr_params.fr.framerate = (unsigned int)fr_den << 16 | fr_num;
#if VA_CHECK_VERSION(0, 40, 0)
ctx->global_params[ctx->nb_global_params] =
&ctx->fr_params.misc;
ctx->global_params_size[ctx->nb_global_params++] =
sizeof(ctx->fr_params);
#endif
return 0;
}

4
libavcodec/vaapi_encode.h
View File

@ -155,6 +155,10 @@ typedef struct VAAPIEncodeContext {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterHRD hrd;
} hrd_params;
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterFrameRate fr;
} fr_params;
// Per-sequence parameter structure (VAEncSequenceParameterBuffer*).
void *codec_sequence_params;