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FFmpeg/libavcodec/vdpau_av1.c

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/*
* AV1 HW decode acceleration through VDPAU
*
* Copyright (c) 2022 Manoj Gupta Bonda
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <vdpau/vdpau.h>
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "internal.h"
#include "av1dec.h"
#include "hwconfig.h"
#include "vdpau.h"
#include "vdpau_internal.h"
static int get_bit_depth_from_seq(const AV1RawSequenceHeader *seq)
{
if (seq->seq_profile == 2 && seq->color_config.high_bitdepth) {
return seq->color_config.twelve_bit ? 12 : 10;
} else if (seq->seq_profile <= 2 && seq->color_config.high_bitdepth) {
return 10;
} else {
return 8;
}
}
static int vdpau_av1_start_frame(AVCodecContext *avctx,
const uint8_t *buffer, uint32_t size)
{
AV1DecContext *s = avctx->priv_data;
const AV1RawSequenceHeader *seq = s->raw_seq;
const AV1RawFrameHeader *frame_header = s->raw_frame_header;
const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain;
struct vdpau_picture_context *pic_ctx = s->cur_frame.hwaccel_picture_private;
int i,j;
unsigned char remap_lr_type[4] = { AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ };
VdpPictureInfoAV1 *info = &pic_ctx->info.av1;
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
if (!pixdesc) {
return AV_PIX_FMT_NONE;
}
info->width = avctx->width;
info->height = avctx->height;
info->frame_offset = frame_header->order_hint;
/* Sequence Header */
info->profile = seq->seq_profile;
info->use_128x128_superblock = seq->use_128x128_superblock;
info->subsampling_x = seq->color_config.subsampling_x;
info->subsampling_y = seq->color_config.subsampling_y;
info->mono_chrome = seq->color_config.mono_chrome;
info->bit_depth_minus8 = get_bit_depth_from_seq(seq) - 8;
info->enable_filter_intra = seq->enable_filter_intra;
info->enable_intra_edge_filter = seq->enable_intra_edge_filter;
info->enable_interintra_compound = seq->enable_interintra_compound;
info->enable_masked_compound = seq->enable_masked_compound;
info->enable_dual_filter = seq->enable_dual_filter;
info->enable_order_hint = seq->enable_order_hint;
info->order_hint_bits_minus1 = seq->order_hint_bits_minus_1;
info->enable_jnt_comp = seq->enable_jnt_comp;
info->enable_superres = seq->enable_superres;
info->enable_cdef = seq->enable_cdef;
info->enable_restoration = seq->enable_restoration;
info->enable_fgs = seq->film_grain_params_present;
/* Frame Header */
info->frame_type = frame_header->frame_type;
info->show_frame = frame_header->show_frame;
info->disable_cdf_update = frame_header->disable_cdf_update;
info->allow_screen_content_tools = frame_header->allow_screen_content_tools;
info->force_integer_mv = frame_header->force_integer_mv ||
frame_header->frame_type == AV1_FRAME_INTRA_ONLY ||
frame_header->frame_type == AV1_FRAME_KEY;
info->coded_denom = frame_header->coded_denom;
info->allow_intrabc = frame_header->allow_intrabc;
info->allow_high_precision_mv = frame_header->allow_high_precision_mv;
info->interp_filter = frame_header->interpolation_filter;
info->switchable_motion_mode = frame_header->is_motion_mode_switchable;
info->use_ref_frame_mvs = frame_header->use_ref_frame_mvs;
info->disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf;
info->delta_q_present = frame_header->delta_q_present;
info->delta_q_res = frame_header->delta_q_res;
info->using_qmatrix = frame_header->using_qmatrix;
info->coded_lossless = s->cur_frame.coded_lossless;
info->use_superres = frame_header->use_superres;
info->tx_mode = frame_header->tx_mode;
info->reference_mode = frame_header->reference_select;
info->allow_warped_motion = frame_header->allow_warped_motion;
info->reduced_tx_set = frame_header->reduced_tx_set;
info->skip_mode = frame_header->skip_mode_present;
/* Tiling Info */
info->num_tile_cols = frame_header->tile_cols;
info->num_tile_rows = frame_header->tile_rows;
info->context_update_tile_id = frame_header->context_update_tile_id;
/* CDEF */
info->cdef_damping_minus_3 = frame_header->cdef_damping_minus_3;
info->cdef_bits = frame_header->cdef_bits;
/* SkipModeFrames */
info->SkipModeFrame0 = frame_header->skip_mode_present ?
s->cur_frame.skip_mode_frame_idx[0] : 0;
info->SkipModeFrame1 = frame_header->skip_mode_present ?
s->cur_frame.skip_mode_frame_idx[1] : 0;
/* QP Information */
info->base_qindex = frame_header->base_q_idx;
info->qp_y_dc_delta_q = frame_header->delta_q_y_dc;
info->qp_u_dc_delta_q = frame_header->delta_q_u_dc;
info->qp_v_dc_delta_q = frame_header->delta_q_v_dc;
info->qp_u_ac_delta_q = frame_header->delta_q_u_ac;
info->qp_v_ac_delta_q = frame_header->delta_q_v_ac;
info->qm_y = frame_header->qm_y;
info->qm_u = frame_header->qm_u;
info->qm_v = frame_header->qm_v;
/* Segmentation */
info->segmentation_enabled = frame_header->segmentation_enabled;
info->segmentation_update_map = frame_header->segmentation_update_map;
info->segmentation_update_data = frame_header->segmentation_update_data;
info->segmentation_temporal_update = frame_header->segmentation_temporal_update;
/* Loopfilter */
info->loop_filter_level[0] = frame_header->loop_filter_level[0];
info->loop_filter_level[1] = frame_header->loop_filter_level[1];
info->loop_filter_level_u = frame_header->loop_filter_level[2];
info->loop_filter_level_v = frame_header->loop_filter_level[3];
info->loop_filter_sharpness = frame_header->loop_filter_sharpness;
info->loop_filter_delta_enabled = frame_header->loop_filter_delta_enabled;
info->loop_filter_delta_update = frame_header->loop_filter_delta_update;
info->loop_filter_mode_deltas[0] = frame_header->loop_filter_mode_deltas[0];
info->loop_filter_mode_deltas[1] = frame_header->loop_filter_mode_deltas[1];
info->delta_lf_present = frame_header->delta_lf_present;
info->delta_lf_res = frame_header->delta_lf_res;
info->delta_lf_multi = frame_header->delta_lf_multi;
/* Restoration */
info->lr_type[0] = remap_lr_type[frame_header->lr_type[0]];
info->lr_type[1] = remap_lr_type[frame_header->lr_type[1]];
info->lr_type[2] = remap_lr_type[frame_header->lr_type[2]];
info->lr_unit_size[0] = 1 + frame_header->lr_unit_shift;
info->lr_unit_size[1] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift;
info->lr_unit_size[2] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift;
/* Reference Frames */
info->temporal_layer_id = s->cur_frame.temporal_id;
info->spatial_layer_id = s->cur_frame.spatial_id;
/* Film Grain Params */
info->apply_grain = film_grain->apply_grain;
info->overlap_flag = film_grain->overlap_flag;
info->scaling_shift_minus8 = film_grain->grain_scaling_minus_8;
info->chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma;
info->ar_coeff_lag = film_grain->ar_coeff_lag;
info->ar_coeff_shift_minus6 = film_grain->ar_coeff_shift_minus_6;
info->grain_scale_shift = film_grain->grain_scale_shift;
info->clip_to_restricted_range = film_grain->clip_to_restricted_range;
info->num_y_points = film_grain->num_y_points;
info->num_cb_points = film_grain->num_cb_points;
info->num_cr_points = film_grain->num_cr_points;
info->random_seed = film_grain->grain_seed;
info->cb_mult = film_grain->cb_mult;
info->cb_luma_mult = film_grain->cb_luma_mult;
info->cb_offset = film_grain->cb_offset;
info->cr_mult = film_grain->cr_mult;
info->cr_luma_mult = film_grain->cr_luma_mult;
info->cr_offset = film_grain->cr_offset;
/* Tiling Info */
for (i = 0; i < frame_header->tile_cols; ++i) {
info->tile_widths[i] = frame_header->width_in_sbs_minus_1[i] + 1;
}
for (i = 0; i < frame_header->tile_rows; ++i) {
info->tile_heights[i] = frame_header->height_in_sbs_minus_1[i] + 1;
}
/* CDEF */
for (i = 0; i < (1 << frame_header->cdef_bits); ++i) {
info->cdef_y_strength[i] = (frame_header->cdef_y_pri_strength[i] & 0x0F) | (frame_header->cdef_y_sec_strength[i] << 4);
info->cdef_uv_strength[i] = (frame_header->cdef_uv_pri_strength[i] & 0x0F) | (frame_header->cdef_uv_sec_strength[i] << 4);
}
/* Segmentation */
for (i = 0; i < AV1_MAX_SEGMENTS; ++i) {
info->segmentation_feature_mask[i] = 0;
for (j = 0; j < AV1_SEG_LVL_MAX; ++j) {
info->segmentation_feature_mask[i] |= frame_header->feature_enabled[i][j] << j;
info->segmentation_feature_data[i][j] = frame_header->feature_value[i][j];
}
}
for (i = 0; i < AV1_NUM_REF_FRAMES; ++i) {
/* Loopfilter */
info->loop_filter_ref_deltas[i] = frame_header->loop_filter_ref_deltas[i];
/* Reference Frames */
info->ref_frame_map[i] = ff_vdpau_get_surface_id(s->ref[i].f) ? ff_vdpau_get_surface_id(s->ref[i].f) : VDP_INVALID_HANDLE;
}
if (frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
info->primary_ref_frame = -1;
} else {
int8_t pri_ref_idx = frame_header->ref_frame_idx[frame_header->primary_ref_frame];
info->primary_ref_frame = info->ref_frame_map[pri_ref_idx];
}
for (i = 0; i < AV1_REFS_PER_FRAME; ++i) {
/* Ref Frame List */
int8_t ref_idx = frame_header->ref_frame_idx[i];
AVFrame *ref_frame = s->ref[ref_idx].f;
info->ref_frame[i].index = info->ref_frame_map[ref_idx];
info->ref_frame[i].width = ref_frame->width;
info->ref_frame[i].height = ref_frame->height;
/* Global Motion */
info->global_motion[i].invalid = !frame_header->is_global[AV1_REF_FRAME_LAST + i];
info->global_motion[i].wmtype = s->cur_frame.gm_type[AV1_REF_FRAME_LAST + i];
for (j = 0; j < 6; ++j) {
info->global_motion[i].wmmat[j] = s->cur_frame.gm_params[AV1_REF_FRAME_LAST + i][j];
}
}
/* Film Grain Params */
if (film_grain->apply_grain) {
for (i = 0; i < 14; ++i) {
info->scaling_points_y[i][0] = film_grain->point_y_value[i];
info->scaling_points_y[i][1] = film_grain->point_y_scaling[i];
}
for (i = 0; i < 10; ++i) {
info->scaling_points_cb[i][0] = film_grain->point_cb_value[i];
info->scaling_points_cb[i][1] = film_grain->point_cb_scaling[i];
info->scaling_points_cr[i][0] = film_grain->point_cr_value[i];
info->scaling_points_cr[i][1] = film_grain->point_cr_scaling[i];
}
for (i = 0; i < 24; ++i) {
info->ar_coeffs_y[i] = (short)film_grain->ar_coeffs_y_plus_128[i] - 128;
}
for (i = 0; i < 25; ++i) {
info->ar_coeffs_cb[i] = (short)film_grain->ar_coeffs_cb_plus_128[i] - 128;
info->ar_coeffs_cr[i] = (short)film_grain->ar_coeffs_cr_plus_128[i] - 128;
}
}
return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
}
static int vdpau_av1_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer, uint32_t size)
{
const AV1DecContext *s = avctx->priv_data;
const AV1RawFrameHeader *frame_header = s->raw_frame_header;
struct vdpau_picture_context *pic_ctx = s->cur_frame.hwaccel_picture_private;
VdpPictureInfoAV1 *info = &pic_ctx->info.av1;
int val;
int nb_slices;
VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
int bitstream_len = 0;
nb_slices = frame_header->tile_cols * frame_header->tile_rows;
/* Shortcut if all tiles are in the same buffer*/
if (nb_slices == s->tg_end - s->tg_start + 1) {
for (int i = 0; i < nb_slices; ++i) {
info->tile_info[i*2 ] = s->tile_group_info[i].tile_offset;
info->tile_info[i*2 + 1] = info->tile_info[i*2] + s->tile_group_info[i].tile_size;
}
val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
if (val) {
return val;
}
return 0;
}
for(int i = 0; i < pic_ctx->bitstream_buffers_used; i++) {
bitstream_len += buffers->bitstream_bytes;
buffers++;
}
for (uint32_t tile_num = s->tg_start; tile_num <= s->tg_end; ++tile_num) {
info->tile_info[tile_num*2 ] = bitstream_len + s->tile_group_info[tile_num].tile_offset;
info->tile_info[tile_num*2 + 1] = info->tile_info[tile_num*2] + s->tile_group_info[tile_num].tile_size;
}
val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
if (val) {
return val;
}
return 0;
}
static int vdpau_av1_end_frame(AVCodecContext *avctx)
{
const AV1DecContext *s = avctx->priv_data;
struct vdpau_picture_context *pic_ctx = s->cur_frame.hwaccel_picture_private;
int val;
val = ff_vdpau_common_end_frame(avctx, s->cur_frame.f, pic_ctx);
if (val < 0)
return val;
return 0;
}
static int vdpau_av1_init(AVCodecContext *avctx)
{
VdpDecoderProfile profile;
uint32_t level = avctx->level;
switch (avctx->profile) {
case FF_PROFILE_AV1_MAIN:
profile = VDP_DECODER_PROFILE_AV1_MAIN;
break;
case FF_PROFILE_AV1_HIGH:
profile = VDP_DECODER_PROFILE_AV1_HIGH;
break;
case FF_PROFILE_AV1_PROFESSIONAL:
profile = VDP_DECODER_PROFILE_AV1_PROFESSIONAL;
break;
default:
return AVERROR(ENOTSUP);
}
return ff_vdpau_common_init(avctx, profile, level);
}
const AVHWAccel ff_av1_vdpau_hwaccel = {
.name = "av1_vdpau",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_AV1,
.pix_fmt = AV_PIX_FMT_VDPAU,
.start_frame = vdpau_av1_start_frame,
.end_frame = vdpau_av1_end_frame,
.decode_slice = vdpau_av1_decode_slice,
.frame_priv_data_size = sizeof(struct vdpau_picture_context),
.init = vdpau_av1_init,
.uninit = ff_vdpau_common_uninit,
.frame_params = ff_vdpau_common_frame_params,
.priv_data_size = sizeof(VDPAUContext),
.caps_internal = HWACCEL_CAP_ASYNC_SAFE,
};