virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avcodec/nvdec_av1: fix setting film grain parameters for frames with update_grain == 0

Browse Source 
The spec in section 6.8.20 states the parameters should be loaded from a
reference frame indexed by film_grain_params_ref_idx.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2020-11-12 17:17:04 -03:00
parent 5d4a6bbd4b
commit f9eec62983
1 changed files with 31 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
libavcodec/nvdec_av1.c
View File

@ -41,7 +41,7 @@ static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, u
{
const AV1DecContext *s = avctx->priv_data;
const AV1RawSequenceHeader *seq = s->raw_seq;
const AV1RawFrameHeader *frame_header = s->raw_frame_header;
const AV1RawFrameHeader *fg_header, *frame_header = s->raw_frame_header;
NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
CUVIDPICPARAMS *pp = &ctx->pic_params;
@ -58,6 +58,11 @@ static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, u
if (ret < 0)
return ret;
if (frame_header->apply_grain && !frame_header->update_grain)
fg_header = s->ref[frame_header->film_grain_params_ref_idx].raw_frame_header;
else
fg_header = frame_header;
fdd = (FrameDecodeData*)cur_frame->private_ref->data;
cf = (NVDECFrame*)fdd->hwaccel_priv;
@ -182,23 +187,23 @@ static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, u
/* Film Grain Params */
.apply_grain = frame_header->apply_grain,
.overlap_flag = frame_header->overlap_flag,
.scaling_shift_minus8 = frame_header->grain_scaling_minus_8,
.chroma_scaling_from_luma = frame_header->chroma_scaling_from_luma,
.ar_coeff_lag = frame_header->ar_coeff_lag,
.ar_coeff_shift_minus6 = frame_header->ar_coeff_shift_minus_6,
.grain_scale_shift = frame_header->grain_scale_shift,
.clip_to_restricted_range = frame_header->clip_to_restricted_range,
.num_y_points = frame_header->num_y_points,
.num_cb_points = frame_header->num_cb_points,
.num_cr_points = frame_header->num_cr_points,
.overlap_flag = fg_header->overlap_flag,
.scaling_shift_minus8 = fg_header->grain_scaling_minus_8,
.chroma_scaling_from_luma = fg_header->chroma_scaling_from_luma,
.ar_coeff_lag = fg_header->ar_coeff_lag,
.ar_coeff_shift_minus6 = fg_header->ar_coeff_shift_minus_6,
.grain_scale_shift = fg_header->grain_scale_shift,
.clip_to_restricted_range = fg_header->clip_to_restricted_range,
.num_y_points = fg_header->num_y_points,
.num_cb_points = fg_header->num_cb_points,
.num_cr_points = fg_header->num_cr_points,
.random_seed = frame_header->grain_seed,
.cb_mult = frame_header->cb_mult,
.cb_luma_mult = frame_header->cb_luma_mult,
.cb_offset = frame_header->cb_offset,
.cr_mult = frame_header->cr_mult,
.cr_luma_mult = frame_header->cr_luma_mult,
.cr_offset = frame_header->cr_offset
.cb_mult = fg_header->cb_mult,
.cb_luma_mult = fg_header->cb_luma_mult,
.cb_offset = fg_header->cb_offset,
.cr_mult = fg_header->cr_mult,
.cr_luma_mult = fg_header->cr_luma_mult,
.cr_offset = fg_header->cr_offset
}
};
@ -260,21 +265,21 @@ static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, u
/* Film Grain Params */
if (frame_header->apply_grain) {
for (i = 0; i < 14; ++i) {
ppc->scaling_points_y[i][0] = frame_header->point_y_value[i];
ppc->scaling_points_y[i][1] = frame_header->point_y_scaling[i];
ppc->scaling_points_y[i][0] = fg_header->point_y_value[i];
ppc->scaling_points_y[i][1] = fg_header->point_y_scaling[i];
}
for (i = 0; i < 10; ++i) {
ppc->scaling_points_cb[i][0] = frame_header->point_cb_value[i];
ppc->scaling_points_cb[i][1] = frame_header->point_cb_scaling[i];
ppc->scaling_points_cr[i][0] = frame_header->point_cr_value[i];
ppc->scaling_points_cr[i][1] = frame_header->point_cr_scaling[i];
ppc->scaling_points_cb[i][0] = fg_header->point_cb_value[i];
ppc->scaling_points_cb[i][1] = fg_header->point_cb_scaling[i];
ppc->scaling_points_cr[i][0] = fg_header->point_cr_value[i];
ppc->scaling_points_cr[i][1] = fg_header->point_cr_scaling[i];
}
for (i = 0; i < 24; ++i) {
ppc->ar_coeffs_y[i] = (short)frame_header->ar_coeffs_y_plus_128[i] - 128;
ppc->ar_coeffs_y[i] = (short)fg_header->ar_coeffs_y_plus_128[i] - 128;
}
for (i = 0; i < 25; ++i) {
ppc->ar_coeffs_cb[i] = (short)frame_header->ar_coeffs_cb_plus_128[i] - 128;
ppc->ar_coeffs_cr[i] = (short)frame_header->ar_coeffs_cr_plus_128[i] - 128;
ppc->ar_coeffs_cb[i] = (short)fg_header->ar_coeffs_cb_plus_128[i] - 128;
ppc->ar_coeffs_cr[i] = (short)fg_header->ar_coeffs_cr_plus_128[i] - 128;
}
}