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vaapi_encode: Refactor encode misc parameter buffer creation

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This removes the use of the nonstandard combined structures, which
generated some warnings with clang and will cause alignment problems
with some parameter buffer types.
pull/315/head
Mark Thompson 6 years ago
parent 7056002796
commit 2880a32c66
3 changed files with 61 additions and 42 deletions
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  1. 72
      libavcodec/vaapi_encode.c
  2. 23
      libavcodec/vaapi_encode.h
  3. 8
      libavcodec/vaapi_encode_h264.c

72
libavcodec/vaapi_encode.c
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@ -103,6 +103,29 @@ static int vaapi_encode_make_param_buffer(AVCodecContext *avctx,
return 0;
}
static int vaapi_encode_make_misc_param_buffer(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int type,
const void *data, size_t len)
{
// Construct the buffer on the stack - 1KB is much larger than any
// current misc parameter buffer type (the largest is EncQuality at
// 224 bytes).
uint8_t buffer[1024];
VAEncMiscParameterBuffer header = {
.type = type,
};
size_t buffer_size = sizeof(header) + len;
av_assert0(buffer_size <= sizeof(buffer));
memcpy(buffer, &header, sizeof(header));
memcpy(buffer + sizeof(header), data, len);
return vaapi_encode_make_param_buffer(avctx, pic,
VAEncMiscParameterBufferType,
buffer, buffer_size);
}
static int vaapi_encode_wait(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
@ -212,10 +235,10 @@ static int vaapi_encode_issue(AVCodecContext *avctx,
if (pic->type == PICTURE_TYPE_IDR) {
for (i = 0; i < ctx->nb_global_params; i++) {
err = vaapi_encode_make_param_buffer(avctx, pic,
VAEncMiscParameterBufferType,
(char*)ctx->global_params[i],
ctx->global_params_size[i]);
err = vaapi_encode_make_misc_param_buffer(avctx, pic,
ctx->global_params_type[i],
ctx->global_params[i],
ctx->global_params_size[i]);
if (err < 0)
goto fail;
}
@ -1047,14 +1070,15 @@ int ff_vaapi_encode_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
return 0;
}
static av_cold void vaapi_encode_add_global_param(AVCodecContext *avctx,
VAEncMiscParameterBuffer *buffer,
size_t size)
static av_cold void vaapi_encode_add_global_param(AVCodecContext *avctx, int type,
void *buffer, size_t size)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
av_assert0(ctx->nb_global_params < MAX_GLOBAL_PARAMS);
ctx->global_params_type[ctx->nb_global_params] = type;
ctx->global_params [ctx->nb_global_params] = buffer;
ctx->global_params_size[ctx->nb_global_params] = size;
@ -1588,8 +1612,7 @@ rc_mode_found:
rc_bits_per_second, rc_window_size);
}
ctx->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
ctx->rc_params.rc = (VAEncMiscParameterRateControl) {
ctx->rc_params = (VAEncMiscParameterRateControl) {
.bits_per_second = rc_bits_per_second,
.target_percentage = rc_target_percentage,
.window_size = rc_window_size,
@ -1604,7 +1627,9 @@ rc_mode_found:
.quality_factor = rc_quality,
#endif
};
vaapi_encode_add_global_param(avctx, &ctx->rc_params.misc,
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeRateControl,
&ctx->rc_params,
sizeof(ctx->rc_params));
}
@ -1613,12 +1638,13 @@ rc_mode_found:
"initial fullness %"PRId64" bits.\n",
hrd_buffer_size, hrd_initial_buffer_fullness);
ctx->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
ctx->hrd_params.hrd = (VAEncMiscParameterHRD) {
ctx->hrd_params = (VAEncMiscParameterHRD) {
.initial_buffer_fullness = hrd_initial_buffer_fullness,
.buffer_size = hrd_buffer_size,
};
vaapi_encode_add_global_param(avctx, &ctx->hrd_params.misc,
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeHRD,
&ctx->hrd_params,
sizeof(ctx->hrd_params));
}
@ -1632,11 +1658,13 @@ rc_mode_found:
av_log(avctx, AV_LOG_VERBOSE, "RC framerate: %d/%d (%.2f fps).\n",
fr_num, fr_den, (double)fr_num / fr_den);
ctx->fr_params.misc.type = VAEncMiscParameterTypeFrameRate;
ctx->fr_params.fr.framerate = (unsigned int)fr_den << 16 | fr_num;
ctx->fr_params = (VAEncMiscParameterFrameRate) {
.framerate = (unsigned int)fr_den << 16 | fr_num,
};
#if VA_CHECK_VERSION(0, 40, 0)
vaapi_encode_add_global_param(avctx, &ctx->fr_params.misc,
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeFrameRate,
&ctx->fr_params,
sizeof(ctx->fr_params));
#endif
@ -1898,10 +1926,12 @@ static av_cold int vaapi_encode_init_quality(AVCodecContext *avctx)
quality = attr.value;
}
ctx->quality_params.misc.type = VAEncMiscParameterTypeQualityLevel;
ctx->quality_params.quality.quality_level = quality;
vaapi_encode_add_global_param(avctx, &ctx->quality_params.misc,
ctx->quality_params = (VAEncMiscParameterBufferQualityLevel) {
.quality_level = quality,
};
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeQualityLevel,
&ctx->quality_params,
sizeof(ctx->quality_params));
}
#else

23
libavcodec/vaapi_encode.h
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@ -244,28 +244,17 @@ typedef struct VAAPIEncodeContext {
// Global parameters which will be applied at the start of the
// sequence (includes rate control parameters below).
VAEncMiscParameterBuffer *global_params[MAX_GLOBAL_PARAMS];
int global_params_type[MAX_GLOBAL_PARAMS];
const void *global_params [MAX_GLOBAL_PARAMS];
size_t global_params_size[MAX_GLOBAL_PARAMS];
int nb_global_params;
// Rate control parameters.
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterRateControl rc;
} rc_params;
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterHRD hrd;
} hrd_params;
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterFrameRate fr;
} fr_params;
VAEncMiscParameterRateControl rc_params;
VAEncMiscParameterHRD hrd_params;
VAEncMiscParameterFrameRate fr_params;
#if VA_CHECK_VERSION(0, 36, 0)
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterBufferQualityLevel quality;
} quality_params;
VAEncMiscParameterBufferQualityLevel quality_params;
#endif
// Per-sequence parameter structure (VAEncSequenceParameterBuffer*).

8
libavcodec/vaapi_encode_h264.c
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@ -471,9 +471,9 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
(ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1;
hrd->cpb_size_scale =
av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4);
hrd->cpb_size_value_minus1[0] =
(ctx->hrd_params.hrd.buffer_size >> hrd->cpb_size_scale + 4) - 1;
(ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1;
// CBR mode as defined for the HRD cannot be achieved without filler
// data, so this flag cannot be set even with VAAPI CBR modes.
@ -488,8 +488,8 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
// This calculation can easily overflow 32 bits.
bp->nal.initial_cpb_removal_delay[0] = 90000 *
(uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
ctx->hrd_params.hrd.buffer_size;
(uint64_t)ctx->hrd_params.initial_buffer_fullness /
ctx->hrd_params.buffer_size;
bp->nal.initial_cpb_removal_delay_offset[0] = 0;
} else {
sps->vui.nal_hrd_parameters_present_flag = 0;

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