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FFmpeg/libavcodec/hevc.c
Philip Langdale 1b19d0c632 avcodec/hevc: Track long and short term RPS size for VDPAU 
Today, we track the short term RPS size for DXVA, but only if the
SliceHeader RPS is being used. Otherwise it's left uninitialized.

NVIDIA's VDPAU implementation requires that the size be accurately
tracked even if an SPS RPS is being used. In this case, it's really
counting the size of the RPS idx information, but you end up with
mangled output if the value is not accurate.

VDPAU also needs the size of the long term RPS.

Signed-off-by: Philip Langdale <philipl@overt.org>
2015-06-13 21:09:24 -07:00

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/*
* HEVC video Decoder
*
* Copyright (C) 2012 - 2013 Guillaume Martres
* Copyright (C) 2012 - 2013 Mickael Raulet
* Copyright (C) 2012 - 2013 Gildas Cocherel
* Copyright (C) 2012 - 2013 Wassim Hamidouche
*
* 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 "libavutil/atomic.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/display.h"
#include "libavutil/internal.h"
#include "libavutil/md5.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/stereo3d.h"
#include "bswapdsp.h"
#include "bytestream.h"
#include "cabac_functions.h"
#include "golomb.h"
#include "hevc.h"
const uint8_t ff_hevc_pel_weight[65] = { [2] = 0, [4] = 1, [6] = 2, [8] = 3, [12] = 4, [16] = 5, [24] = 6, [32] = 7, [48] = 8, [64] = 9 };
/**
* NOTE: Each function hls_foo correspond to the function foo in the
* specification (HLS stands for High Level Syntax).
*/
/**
* Section 5.7
*/
/* free everything allocated by pic_arrays_init() */
static void pic_arrays_free(HEVCContext *s)
{
av_freep(&s->sao);
av_freep(&s->deblock);
av_freep(&s->skip_flag);
av_freep(&s->tab_ct_depth);
av_freep(&s->tab_ipm);
av_freep(&s->cbf_luma);
av_freep(&s->is_pcm);
av_freep(&s->qp_y_tab);
av_freep(&s->tab_slice_address);
av_freep(&s->filter_slice_edges);
av_freep(&s->horizontal_bs);
av_freep(&s->vertical_bs);
av_freep(&s->sh.entry_point_offset);
av_freep(&s->sh.size);
av_freep(&s->sh.offset);
av_buffer_pool_uninit(&s->tab_mvf_pool);
av_buffer_pool_uninit(&s->rpl_tab_pool);
}
/* allocate arrays that depend on frame dimensions */
static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
{
int log2_min_cb_size = sps->log2_min_cb_size;
int width = sps->width;
int height = sps->height;
int pic_size_in_ctb = ((width >> log2_min_cb_size) + 1) *
((height >> log2_min_cb_size) + 1);
int ctb_count = sps->ctb_width * sps->ctb_height;
int min_pu_size = sps->min_pu_width * sps->min_pu_height;
s->bs_width = (width >> 2) + 1;
s->bs_height = (height >> 2) + 1;
s->sao = av_mallocz_array(ctb_count, sizeof(*s->sao));
s->deblock = av_mallocz_array(ctb_count, sizeof(*s->deblock));
if (!s->sao || !s->deblock)
goto fail;
s->skip_flag = av_malloc_array(sps->min_cb_height, sps->min_cb_width);
s->tab_ct_depth = av_malloc_array(sps->min_cb_height, sps->min_cb_width);
if (!s->skip_flag || !s->tab_ct_depth)
goto fail;
s->cbf_luma = av_malloc_array(sps->min_tb_width, sps->min_tb_height);
s->tab_ipm = av_mallocz(min_pu_size);
s->is_pcm = av_malloc_array(sps->min_pu_width + 1, sps->min_pu_height + 1);
if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
goto fail;
s->filter_slice_edges = av_mallocz(ctb_count);
s->tab_slice_address = av_malloc_array(pic_size_in_ctb,
sizeof(*s->tab_slice_address));
s->qp_y_tab = av_malloc_array(pic_size_in_ctb,
sizeof(*s->qp_y_tab));
if (!s->qp_y_tab || !s->filter_slice_edges || !s->tab_slice_address)
goto fail;
s->horizontal_bs = av_mallocz_array(s->bs_width, s->bs_height);
s->vertical_bs = av_mallocz_array(s->bs_width, s->bs_height);
if (!s->horizontal_bs || !s->vertical_bs)
goto fail;
s->tab_mvf_pool = av_buffer_pool_init(min_pu_size * sizeof(MvField),
av_buffer_allocz);
s->rpl_tab_pool = av_buffer_pool_init(ctb_count * sizeof(RefPicListTab),
av_buffer_allocz);
if (!s->tab_mvf_pool || !s->rpl_tab_pool)
goto fail;
return 0;
fail:
pic_arrays_free(s);
return AVERROR(ENOMEM);
}
static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
{
int i = 0;
int j = 0;
uint8_t luma_weight_l0_flag[16];
uint8_t chroma_weight_l0_flag[16];
uint8_t luma_weight_l1_flag[16];
uint8_t chroma_weight_l1_flag[16];
int luma_log2_weight_denom;
luma_log2_weight_denom = get_ue_golomb_long(gb);
if (luma_log2_weight_denom < 0 || luma_log2_weight_denom > 7)
av_log(s->avctx, AV_LOG_ERROR, "luma_log2_weight_denom %d is invalid\n", luma_log2_weight_denom);
s->sh.luma_log2_weight_denom = av_clip_uintp2(luma_log2_weight_denom, 3);
if (s->sps->chroma_format_idc != 0) {
int delta = get_se_golomb(gb);
s->sh.chroma_log2_weight_denom = av_clip_uintp2(s->sh.luma_log2_weight_denom + delta, 3);
}
for (i = 0; i < s->sh.nb_refs[L0]; i++) {
luma_weight_l0_flag[i] = get_bits1(gb);
if (!luma_weight_l0_flag[i]) {
s->sh.luma_weight_l0[i] = 1 << s->sh.luma_log2_weight_denom;
s->sh.luma_offset_l0[i] = 0;
}
}
if (s->sps->chroma_format_idc != 0) {
for (i = 0; i < s->sh.nb_refs[L0]; i++)
chroma_weight_l0_flag[i] = get_bits1(gb);
} else {
for (i = 0; i < s->sh.nb_refs[L0]; i++)
chroma_weight_l0_flag[i] = 0;
}
for (i = 0; i < s->sh.nb_refs[L0]; i++) {
if (luma_weight_l0_flag[i]) {
int delta_luma_weight_l0 = get_se_golomb(gb);
s->sh.luma_weight_l0[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l0;
s->sh.luma_offset_l0[i] = get_se_golomb(gb);
}
if (chroma_weight_l0_flag[i]) {
for (j = 0; j < 2; j++) {
int delta_chroma_weight_l0 = get_se_golomb(gb);
int delta_chroma_offset_l0 = get_se_golomb(gb);
s->sh.chroma_weight_l0[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l0;
s->sh.chroma_offset_l0[i][j] = av_clip((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
>> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
}
} else {
s->sh.chroma_weight_l0[i][0] = 1 << s->sh.chroma_log2_weight_denom;
s->sh.chroma_offset_l0[i][0] = 0;
s->sh.chroma_weight_l0[i][1] = 1 << s->sh.chroma_log2_weight_denom;
s->sh.chroma_offset_l0[i][1] = 0;
}
}
if (s->sh.slice_type == B_SLICE) {
for (i = 0; i < s->sh.nb_refs[L1]; i++) {
luma_weight_l1_flag[i] = get_bits1(gb);
if (!luma_weight_l1_flag[i]) {
s->sh.luma_weight_l1[i] = 1 << s->sh.luma_log2_weight_denom;
s->sh.luma_offset_l1[i] = 0;
}
}
if (s->sps->chroma_format_idc != 0) {
for (i = 0; i < s->sh.nb_refs[L1]; i++)
chroma_weight_l1_flag[i] = get_bits1(gb);
} else {
for (i = 0; i < s->sh.nb_refs[L1]; i++)
chroma_weight_l1_flag[i] = 0;
}
for (i = 0; i < s->sh.nb_refs[L1]; i++) {
if (luma_weight_l1_flag[i]) {
int delta_luma_weight_l1 = get_se_golomb(gb);
s->sh.luma_weight_l1[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l1;
s->sh.luma_offset_l1[i] = get_se_golomb(gb);
}
if (chroma_weight_l1_flag[i]) {
for (j = 0; j < 2; j++) {
int delta_chroma_weight_l1 = get_se_golomb(gb);
int delta_chroma_offset_l1 = get_se_golomb(gb);
s->sh.chroma_weight_l1[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l1;
s->sh.chroma_offset_l1[i][j] = av_clip((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
>> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
}
} else {
s->sh.chroma_weight_l1[i][0] = 1 << s->sh.chroma_log2_weight_denom;
s->sh.chroma_offset_l1[i][0] = 0;
s->sh.chroma_weight_l1[i][1] = 1 << s->sh.chroma_log2_weight_denom;
s->sh.chroma_offset_l1[i][1] = 0;
}
}
}
}
static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
{
const HEVCSPS *sps = s->sps;
int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
int prev_delta_msb = 0;
unsigned int nb_sps = 0, nb_sh;
int i;
rps->nb_refs = 0;
if (!sps->long_term_ref_pics_present_flag)
return 0;
if (sps->num_long_term_ref_pics_sps > 0)
nb_sps = get_ue_golomb_long(gb);
nb_sh = get_ue_golomb_long(gb);
if (nb_sh + (uint64_t)nb_sps > FF_ARRAY_ELEMS(rps->poc))
return AVERROR_INVALIDDATA;
rps->nb_refs = nb_sh + nb_sps;
for (i = 0; i < rps->nb_refs; i++) {
uint8_t delta_poc_msb_present;
if (i < nb_sps) {
uint8_t lt_idx_sps = 0;
if (sps->num_long_term_ref_pics_sps > 1)
lt_idx_sps = get_bits(gb, av_ceil_log2(sps->num_long_term_ref_pics_sps));
rps->poc[i] = sps->lt_ref_pic_poc_lsb_sps[lt_idx_sps];
rps->used[i] = sps->used_by_curr_pic_lt_sps_flag[lt_idx_sps];
} else {
rps->poc[i] = get_bits(gb, sps->log2_max_poc_lsb);
rps->used[i] = get_bits1(gb);
}
delta_poc_msb_present = get_bits1(gb);
if (delta_poc_msb_present) {
int delta = get_ue_golomb_long(gb);
if (i && i != nb_sps)
delta += prev_delta_msb;
rps->poc[i] += s->poc - delta * max_poc_lsb - s->sh.pic_order_cnt_lsb;
prev_delta_msb = delta;
}
}
return 0;
}
static void export_stream_params(AVCodecContext *avctx,
const HEVCContext *s, const HEVCSPS *sps)
{
const HEVCVPS *vps = (const HEVCVPS*)s->vps_list[sps->vps_id]->data;
unsigned int num = 0, den = 0;
avctx->pix_fmt = sps->pix_fmt;
avctx->coded_width = sps->width;
avctx->coded_height = sps->height;
avctx->width = sps->output_width;
avctx->height = sps->output_height;
avctx->has_b_frames = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
avctx->profile = sps->ptl.general_ptl.profile_idc;
avctx->level = sps->ptl.general_ptl.level_idc;
ff_set_sar(avctx, sps->vui.sar);
if (sps->vui.video_signal_type_present_flag)
avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
: AVCOL_RANGE_MPEG;
else
avctx->color_range = AVCOL_RANGE_MPEG;
if (sps->vui.colour_description_present_flag) {
avctx->color_primaries = sps->vui.colour_primaries;
avctx->color_trc = sps->vui.transfer_characteristic;
avctx->colorspace = sps->vui.matrix_coeffs;
} else {
avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
avctx->colorspace = AVCOL_SPC_UNSPECIFIED;
}
if (vps->vps_timing_info_present_flag) {
num = vps->vps_num_units_in_tick;
den = vps->vps_time_scale;
} else if (sps->vui.vui_timing_info_present_flag) {
num = sps->vui.vui_num_units_in_tick;
den = sps->vui.vui_time_scale;
}
if (num != 0 && den != 0)
av_reduce(&avctx->framerate.den, &avctx->framerate.num,
num, den, 1 << 30);
}
static int set_sps(HEVCContext *s, const HEVCSPS *sps, enum AVPixelFormat pix_fmt)
{
#define HWACCEL_MAX (CONFIG_HEVC_DXVA2_HWACCEL + CONFIG_HEVC_D3D11VA_HWACCEL)
enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
int ret, i;
export_stream_params(s->avctx, s, sps);
pic_arrays_free(s);
ret = pic_arrays_init(s, sps);
if (ret < 0)
goto fail;
if (sps->pix_fmt == AV_PIX_FMT_YUV420P || sps->pix_fmt == AV_PIX_FMT_YUVJ420P) {
#if CONFIG_HEVC_DXVA2_HWACCEL
*fmt++ = AV_PIX_FMT_DXVA2_VLD;
#endif
#if CONFIG_HEVC_D3D11VA_HWACCEL
*fmt++ = AV_PIX_FMT_D3D11VA_VLD;
#endif
}
if (pix_fmt == AV_PIX_FMT_NONE) {
*fmt++ = sps->pix_fmt;
*fmt = AV_PIX_FMT_NONE;
ret = ff_thread_get_format(s->avctx, pix_fmts);
if (ret < 0)
goto fail;
s->avctx->pix_fmt = ret;
}
else {
s->avctx->pix_fmt = pix_fmt;
}
ff_hevc_pred_init(&s->hpc, sps->bit_depth);
ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
ff_videodsp_init (&s->vdsp, sps->bit_depth);
for (i = 0; i < 3; i++) {
av_freep(&s->sao_pixel_buffer_h[i]);
av_freep(&s->sao_pixel_buffer_v[i]);
}
if (sps->sao_enabled && !s->avctx->hwaccel) {
int c_count = (sps->chroma_format_idc != 0) ? 3 : 1;
int c_idx;
for(c_idx = 0; c_idx < c_count; c_idx++) {
int w = sps->width >> sps->hshift[c_idx];
int h = sps->height >> sps->vshift[c_idx];
s->sao_pixel_buffer_h[c_idx] =
av_malloc((w * 2 * sps->ctb_height) <<
sps->pixel_shift);
s->sao_pixel_buffer_v[c_idx] =
av_malloc((h * 2 * sps->ctb_width) <<
sps->pixel_shift);
}
}
s->sps = sps;
s->vps = (HEVCVPS*) s->vps_list[s->sps->vps_id]->data;
return 0;
fail:
pic_arrays_free(s);
s->sps = NULL;
return ret;
}
static int hls_slice_header(HEVCContext *s)
{
GetBitContext *gb = &s->HEVClc->gb;
SliceHeader *sh = &s->sh;
int i, ret;
// Coded parameters
sh->first_slice_in_pic_flag = get_bits1(gb);
if ((IS_IDR(s) || IS_BLA(s)) && sh->first_slice_in_pic_flag) {
s->seq_decode = (s->seq_decode + 1) & 0xff;
s->max_ra = INT_MAX;
if (IS_IDR(s))
ff_hevc_clear_refs(s);
}
sh->no_output_of_prior_pics_flag = 0;
if (IS_IRAP(s))
sh->no_output_of_prior_pics_flag = get_bits1(gb);
sh->pps_id = get_ue_golomb_long(gb);
if (sh->pps_id >= MAX_PPS_COUNT || !s->pps_list[sh->pps_id]) {
av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", sh->pps_id);
return AVERROR_INVALIDDATA;
}
if (!sh->first_slice_in_pic_flag &&
s->pps != (HEVCPPS*)s->pps_list[sh->pps_id]->data) {
av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
return AVERROR_INVALIDDATA;
}
s->pps = (HEVCPPS*)s->pps_list[sh->pps_id]->data;
if (s->nal_unit_type == NAL_CRA_NUT && s->last_eos == 1)
sh->no_output_of_prior_pics_flag = 1;
if (s->sps != (HEVCSPS*)s->sps_list[s->pps->sps_id]->data) {
const HEVCSPS* last_sps = s->sps;
s->sps = (HEVCSPS*)s->sps_list[s->pps->sps_id]->data;
if (last_sps && IS_IRAP(s) && s->nal_unit_type != NAL_CRA_NUT) {
if (s->sps->width != last_sps->width || s->sps->height != last_sps->height ||
s->sps->temporal_layer[s->sps->max_sub_layers - 1].max_dec_pic_buffering !=
last_sps->temporal_layer[last_sps->max_sub_layers - 1].max_dec_pic_buffering)
sh->no_output_of_prior_pics_flag = 0;
}
ff_hevc_clear_refs(s);
ret = set_sps(s, s->sps, AV_PIX_FMT_NONE);
if (ret < 0)
return ret;
s->seq_decode = (s->seq_decode + 1) & 0xff;
s->max_ra = INT_MAX;
}
sh->dependent_slice_segment_flag = 0;
if (!sh->first_slice_in_pic_flag) {
int slice_address_length;
if (s->pps->dependent_slice_segments_enabled_flag)
sh->dependent_slice_segment_flag = get_bits1(gb);
slice_address_length = av_ceil_log2(s->sps->ctb_width *
s->sps->ctb_height);
sh->slice_segment_addr = get_bits(gb, slice_address_length);
if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid slice segment address: %u.\n",
sh->slice_segment_addr);
return AVERROR_INVALIDDATA;
}
if (!sh->dependent_slice_segment_flag) {
sh->slice_addr = sh->slice_segment_addr;
s->slice_idx++;
}
} else {
sh->slice_segment_addr = sh->slice_addr = 0;
s->slice_idx = 0;
s->slice_initialized = 0;
}
if (!sh->dependent_slice_segment_flag) {
s->slice_initialized = 0;
for (i = 0; i < s->pps->num_extra_slice_header_bits; i++)
skip_bits(gb, 1); // slice_reserved_undetermined_flag[]
sh->slice_type = get_ue_golomb_long(gb);
if (!(sh->slice_type == I_SLICE ||
sh->slice_type == P_SLICE ||
sh->slice_type == B_SLICE)) {
av_log(s->avctx, AV_LOG_ERROR, "Unknown slice type: %d.\n",
sh->slice_type);
return AVERROR_INVALIDDATA;
}
if (IS_IRAP(s) && sh->slice_type != I_SLICE) {
av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n");
return AVERROR_INVALIDDATA;
}
// when flag is not present, picture is inferred to be output
sh->pic_output_flag = 1;
if (s->pps->output_flag_present_flag)
sh->pic_output_flag = get_bits1(gb);
if (s->sps->separate_colour_plane_flag)
sh->colour_plane_id = get_bits(gb, 2);
if (!IS_IDR(s)) {
int poc, pos;
sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
if (!sh->first_slice_in_pic_flag && poc != s->poc) {
av_log(s->avctx, AV_LOG_WARNING,
"Ignoring POC change between slices: %d -> %d\n", s->poc, poc);
if (s->avctx->err_recognition & AV_EF_EXPLODE)
return AVERROR_INVALIDDATA;
poc = s->poc;
}
s->poc = poc;
sh->short_term_ref_pic_set_sps_flag = get_bits1(gb);
pos = get_bits_left(gb);
if (!sh->short_term_ref_pic_set_sps_flag) {
ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
if (ret < 0)
return ret;
sh->short_term_rps = &sh->slice_rps;
} else {
int numbits, rps_idx;
if (!s->sps->nb_st_rps) {
av_log(s->avctx, AV_LOG_ERROR, "No ref lists in the SPS.\n");
return AVERROR_INVALIDDATA;
}
numbits = av_ceil_log2(s->sps->nb_st_rps);
rps_idx = numbits > 0 ? get_bits(gb, numbits) : 0;
sh->short_term_rps = &s->sps->st_rps[rps_idx];
}
sh->short_term_ref_pic_set_size = pos - get_bits_left(gb);
pos = get_bits_left(gb);
ret = decode_lt_rps(s, &sh->long_term_rps, gb);
if (ret < 0) {
av_log(s->avctx, AV_LOG_WARNING, "Invalid long term RPS.\n");
if (s->avctx->err_recognition & AV_EF_EXPLODE)
return AVERROR_INVALIDDATA;
}
sh->long_term_ref_pic_set_size = pos - get_bits_left(gb);
if (s->sps->sps_temporal_mvp_enabled_flag)
sh->slice_temporal_mvp_enabled_flag = get_bits1(gb);
else
sh->slice_temporal_mvp_enabled_flag = 0;
} else {
s->sh.short_term_rps = NULL;
s->poc = 0;
}
/* 8.3.1 */
if (s->temporal_id == 0 &&
s->nal_unit_type != NAL_TRAIL_N &&
s->nal_unit_type != NAL_TSA_N &&
s->nal_unit_type != NAL_STSA_N &&
s->nal_unit_type != NAL_RADL_N &&
s->nal_unit_type != NAL_RADL_R &&
s->nal_unit_type != NAL_RASL_N &&
s->nal_unit_type != NAL_RASL_R)
s->pocTid0 = s->poc;
if (s->sps->sao_enabled) {
sh->slice_sample_adaptive_offset_flag[0] = get_bits1(gb);
if (s->sps->chroma_format_idc) {
sh->slice_sample_adaptive_offset_flag[1] =
sh->slice_sample_adaptive_offset_flag[2] = get_bits1(gb);
}
} else {
sh->slice_sample_adaptive_offset_flag[0] = 0;
sh->slice_sample_adaptive_offset_flag[1] = 0;
sh->slice_sample_adaptive_offset_flag[2] = 0;
}
sh->nb_refs[L0] = sh->nb_refs[L1] = 0;
if (sh->slice_type == P_SLICE || sh->slice_type == B_SLICE) {
int nb_refs;
sh->nb_refs[L0] = s->pps->num_ref_idx_l0_default_active;
if (sh->slice_type == B_SLICE)
sh->nb_refs[L1] = s->pps->num_ref_idx_l1_default_active;
if (get_bits1(gb)) { // num_ref_idx_active_override_flag
sh->nb_refs[L0] = get_ue_golomb_long(gb) + 1;
if (sh->slice_type == B_SLICE)
sh->nb_refs[L1] = get_ue_golomb_long(gb) + 1;
}
if (sh->nb_refs[L0] > MAX_REFS || sh->nb_refs[L1] > MAX_REFS) {
av_log(s->avctx, AV_LOG_ERROR, "Too many refs: %d/%d.\n",
sh->nb_refs[L0], sh->nb_refs[L1]);
return AVERROR_INVALIDDATA;
}
sh->rpl_modification_flag[0] = 0;
sh->rpl_modification_flag[1] = 0;
nb_refs = ff_hevc_frame_nb_refs(s);
if (!nb_refs) {
av_log(s->avctx, AV_LOG_ERROR, "Zero refs for a frame with P or B slices.\n");
return AVERROR_INVALIDDATA;
}
if (s->pps->lists_modification_present_flag && nb_refs > 1) {
sh->rpl_modification_flag[0] = get_bits1(gb);
if (sh->rpl_modification_flag[0]) {
for (i = 0; i < sh->nb_refs[L0]; i++)
sh->list_entry_lx[0][i] = get_bits(gb, av_ceil_log2(nb_refs));
}
if (sh->slice_type == B_SLICE) {
sh->rpl_modification_flag[1] = get_bits1(gb);
if (sh->rpl_modification_flag[1] == 1)
for (i = 0; i < sh->nb_refs[L1]; i++)
sh->list_entry_lx[1][i] = get_bits(gb, av_ceil_log2(nb_refs));
}
}
if (sh->slice_type == B_SLICE)
sh->mvd_l1_zero_flag = get_bits1(gb);
if (s->pps->cabac_init_present_flag)
sh->cabac_init_flag = get_bits1(gb);
else
sh->cabac_init_flag = 0;
sh->collocated_ref_idx = 0;
if (sh->slice_temporal_mvp_enabled_flag) {
sh->collocated_list = L0;
if (sh->slice_type == B_SLICE)
sh->collocated_list = !get_bits1(gb);
if (sh->nb_refs[sh->collocated_list] > 1) {
sh->collocated_ref_idx = get_ue_golomb_long(gb);
if (sh->collocated_ref_idx >= sh->nb_refs[sh->collocated_list]) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid collocated_ref_idx: %d.\n",
sh->collocated_ref_idx);
return AVERROR_INVALIDDATA;
}
}
}
if ((s->pps->weighted_pred_flag && sh->slice_type == P_SLICE) ||
(s->pps->weighted_bipred_flag && sh->slice_type == B_SLICE)) {
pred_weight_table(s, gb);
}
sh->max_num_merge_cand = 5 - get_ue_golomb_long(gb);
if (sh->max_num_merge_cand < 1 || sh->max_num_merge_cand > 5) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid number of merging MVP candidates: %d.\n",
sh->max_num_merge_cand);
return AVERROR_INVALIDDATA;
}
}
sh->slice_qp_delta = get_se_golomb(gb);
if (s->pps->pic_slice_level_chroma_qp_offsets_present_flag) {
sh->slice_cb_qp_offset = get_se_golomb(gb);
sh->slice_cr_qp_offset = get_se_golomb(gb);
} else {
sh->slice_cb_qp_offset = 0;
sh->slice_cr_qp_offset = 0;
}
if (s->pps->chroma_qp_offset_list_enabled_flag)
sh->cu_chroma_qp_offset_enabled_flag = get_bits1(gb);
else
sh->cu_chroma_qp_offset_enabled_flag = 0;
if (s->pps->deblocking_filter_control_present_flag) {
int deblocking_filter_override_flag = 0;
if (s->pps->deblocking_filter_override_enabled_flag)
deblocking_filter_override_flag = get_bits1(gb);
if (deblocking_filter_override_flag) {
sh->disable_deblocking_filter_flag = get_bits1(gb);
if (!sh->disable_deblocking_filter_flag) {
sh->beta_offset = get_se_golomb(gb) * 2;
sh->tc_offset = get_se_golomb(gb) * 2;
}
} else {
sh->disable_deblocking_filter_flag = s->pps->disable_dbf;
sh->beta_offset = s->pps->beta_offset;
sh->tc_offset = s->pps->tc_offset;
}
} else {
sh->disable_deblocking_filter_flag = 0;
sh->beta_offset = 0;
sh->tc_offset = 0;
}
if (s->pps->seq_loop_filter_across_slices_enabled_flag &&
(sh->slice_sample_adaptive_offset_flag[0] ||
sh->slice_sample_adaptive_offset_flag[1] ||
!sh->disable_deblocking_filter_flag)) {
sh->slice_loop_filter_across_slices_enabled_flag = get_bits1(gb);
} else {
sh->slice_loop_filter_across_slices_enabled_flag = s->pps->seq_loop_filter_across_slices_enabled_flag;
}
} else if (!s->slice_initialized) {
av_log(s->avctx, AV_LOG_ERROR, "Independent slice segment missing.\n");
return AVERROR_INVALIDDATA;
}
sh->num_entry_point_offsets = 0;
if (s->pps->tiles_enabled_flag || s->pps->entropy_coding_sync_enabled_flag) {
unsigned num_entry_point_offsets = get_ue_golomb_long(gb);
// It would be possible to bound this tighter but this here is simpler
if (num_entry_point_offsets > get_bits_left(gb)) {
av_log(s->avctx, AV_LOG_ERROR, "num_entry_point_offsets %d is invalid\n", num_entry_point_offsets);
return AVERROR_INVALIDDATA;
}
sh->num_entry_point_offsets = num_entry_point_offsets;
if (sh->num_entry_point_offsets > 0) {
int offset_len = get_ue_golomb_long(gb) + 1;
if (offset_len < 1 || offset_len > 32) {
sh->num_entry_point_offsets = 0;
av_log(s->avctx, AV_LOG_ERROR, "offset_len %d is invalid\n", offset_len);
return AVERROR_INVALIDDATA;
}
av_freep(&sh->entry_point_offset);
av_freep(&sh->offset);
av_freep(&sh->size);
sh->entry_point_offset = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
sh->offset = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
sh->size = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
if (!sh->entry_point_offset || !sh->offset || !sh->size) {
sh->num_entry_point_offsets = 0;
av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate memory\n");
return AVERROR(ENOMEM);
}
for (i = 0; i < sh->num_entry_point_offsets; i++) {
unsigned val = get_bits_long(gb, offset_len);
sh->entry_point_offset[i] = val + 1; // +1; // +1 to get the size
}
if (s->threads_number > 1 && (s->pps->num_tile_rows > 1 || s->pps->num_tile_columns > 1)) {
s->enable_parallel_tiles = 0; // TODO: you can enable tiles in parallel here
s->threads_number = 1;
} else
s->enable_parallel_tiles = 0;
} else
s->enable_parallel_tiles = 0;
}
if (s->pps->slice_header_extension_present_flag) {
unsigned int length = get_ue_golomb_long(gb);
if (length*8LL > get_bits_left(gb)) {
av_log(s->avctx, AV_LOG_ERROR, "too many slice_header_extension_data_bytes\n");
return AVERROR_INVALIDDATA;
}
for (i = 0; i < length; i++)
skip_bits(gb, 8); // slice_header_extension_data_byte
}
// Inferred parameters
sh->slice_qp = 26U + s->pps->pic_init_qp_minus26 + sh->slice_qp_delta;
if (sh->slice_qp > 51 ||
sh->slice_qp < -s->sps->qp_bd_offset) {
av_log(s->avctx, AV_LOG_ERROR,
"The slice_qp %d is outside the valid range "
"[%d, 51].\n",
sh->slice_qp,
-s->sps->qp_bd_offset);
return AVERROR_INVALIDDATA;
}
sh->slice_ctb_addr_rs = sh->slice_segment_addr;
if (!s->sh.slice_ctb_addr_rs && s->sh.dependent_slice_segment_flag) {
av_log(s->avctx, AV_LOG_ERROR, "Impossible slice segment.\n");
return AVERROR_INVALIDDATA;
}
if (get_bits_left(gb) < 0) {
av_log(s->avctx, AV_LOG_ERROR,
"Overread slice header by %d bits\n", -get_bits_left(gb));
return AVERROR_INVALIDDATA;
}
s->HEVClc->first_qp_group = !s->sh.dependent_slice_segment_flag;
if (!s->pps->cu_qp_delta_enabled_flag)
s->HEVClc->qp_y = s->sh.slice_qp;
s->slice_initialized = 1;
s->HEVClc->tu.cu_qp_offset_cb = 0;
s->HEVClc->tu.cu_qp_offset_cr = 0;
return 0;
}
#define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
#define SET_SAO(elem, value) \
do { \
if (!sao_merge_up_flag && !sao_merge_left_flag) \
sao->elem = value; \
else if (sao_merge_left_flag) \
sao->elem = CTB(s->sao, rx-1, ry).elem; \
else if (sao_merge_up_flag) \
sao->elem = CTB(s->sao, rx, ry-1).elem; \
else \
sao->elem = 0; \
} while (0)
static void hls_sao_param(HEVCContext *s, int rx, int ry)
{
HEVCLocalContext *lc = s->HEVClc;
int sao_merge_left_flag = 0;
int sao_merge_up_flag = 0;
SAOParams *sao = &CTB(s->sao, rx, ry);
int c_idx, i;
if (s->sh.slice_sample_adaptive_offset_flag[0] ||
s->sh.slice_sample_adaptive_offset_flag[1]) {
if (rx > 0) {
if (lc->ctb_left_flag)
sao_merge_left_flag = ff_hevc_sao_merge_flag_decode(s);
}
if (ry > 0 && !sao_merge_left_flag) {
if (lc->ctb_up_flag)
sao_merge_up_flag = ff_hevc_sao_merge_flag_decode(s);
}
}
for (c_idx = 0; c_idx < (s->sps->chroma_format_idc ? 3 : 1); c_idx++) {
int log2_sao_offset_scale = c_idx == 0 ? s->pps->log2_sao_offset_scale_luma :
s->pps->log2_sao_offset_scale_chroma;
if (!s->sh.slice_sample_adaptive_offset_flag[c_idx]) {
sao->type_idx[c_idx] = SAO_NOT_APPLIED;
continue;
}
if (c_idx == 2) {
sao->type_idx[2] = sao->type_idx[1];
sao->eo_class[2] = sao->eo_class[1];
} else {
SET_SAO(type_idx[c_idx], ff_hevc_sao_type_idx_decode(s));
}
if (sao->type_idx[c_idx] == SAO_NOT_APPLIED)
continue;
for (i = 0; i < 4; i++)
SET_SAO(offset_abs[c_idx][i], ff_hevc_sao_offset_abs_decode(s));
if (sao->type_idx[c_idx] == SAO_BAND) {
for (i = 0; i < 4; i++) {
if (sao->offset_abs[c_idx][i]) {
SET_SAO(offset_sign[c_idx][i],
ff_hevc_sao_offset_sign_decode(s));
} else {
sao->offset_sign[c_idx][i] = 0;
}
}
SET_SAO(band_position[c_idx], ff_hevc_sao_band_position_decode(s));
} else if (c_idx != 2) {
SET_SAO(eo_class[c_idx], ff_hevc_sao_eo_class_decode(s));
}
// Inferred parameters
sao->offset_val[c_idx][0] = 0;
for (i = 0; i < 4; i++) {
sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i];
if (sao->type_idx[c_idx] == SAO_EDGE) {
if (i > 1)
sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
} else if (sao->offset_sign[c_idx][i]) {
sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
}
sao->offset_val[c_idx][i + 1] *= 1 << log2_sao_offset_scale;
}
}
}
#undef SET_SAO
#undef CTB
static int hls_cross_component_pred(HEVCContext *s, int idx) {
HEVCLocalContext *lc = s->HEVClc;
int log2_res_scale_abs_plus1 = ff_hevc_log2_res_scale_abs(s, idx);
if (log2_res_scale_abs_plus1 != 0) {
int res_scale_sign_flag = ff_hevc_res_scale_sign_flag(s, idx);
lc->tu.res_scale_val = (1 << (log2_res_scale_abs_plus1 - 1)) *
(1 - 2 * res_scale_sign_flag);
} else {
lc->tu.res_scale_val = 0;
}
return 0;
}
static int hls_transform_unit(HEVCContext *s, int x0, int y0,
int xBase, int yBase, int cb_xBase, int cb_yBase,
int log2_cb_size, int log2_trafo_size,
int blk_idx, int cbf_luma, int *cbf_cb, int *cbf_cr)
{
HEVCLocalContext *lc = s->HEVClc;
const int log2_trafo_size_c = log2_trafo_size - s->sps->hshift[1];
int i;
if (lc->cu.pred_mode == MODE_INTRA) {
int trafo_size = 1 << log2_trafo_size;
ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
s->hpc.intra_pred[log2_trafo_size - 2](s, x0, y0, 0);
}
if (cbf_luma || cbf_cb[0] || cbf_cr[0] ||
(s->sps->chroma_format_idc == 2 && (cbf_cb[1] || cbf_cr[1]))) {
int scan_idx = SCAN_DIAG;
int scan_idx_c = SCAN_DIAG;
int cbf_chroma = cbf_cb[0] || cbf_cr[0] ||
(s->sps->chroma_format_idc == 2 &&
(cbf_cb[1] || cbf_cr[1]));
if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
if (lc->tu.cu_qp_delta != 0)
if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
lc->tu.is_cu_qp_delta_coded = 1;
if (lc->tu.cu_qp_delta < -(26 + s->sps->qp_bd_offset / 2) ||
lc->tu.cu_qp_delta > (25 + s->sps->qp_bd_offset / 2)) {
av_log(s->avctx, AV_LOG_ERROR,
"The cu_qp_delta %d is outside the valid range "
"[%d, %d].\n",
lc->tu.cu_qp_delta,
-(26 + s->sps->qp_bd_offset / 2),
(25 + s->sps->qp_bd_offset / 2));
return AVERROR_INVALIDDATA;
}
ff_hevc_set_qPy(s, cb_xBase, cb_yBase, log2_cb_size);
}
if (s->sh.cu_chroma_qp_offset_enabled_flag && cbf_chroma &&
!lc->cu.cu_transquant_bypass_flag && !lc->tu.is_cu_chroma_qp_offset_coded) {
int cu_chroma_qp_offset_flag = ff_hevc_cu_chroma_qp_offset_flag(s);
if (cu_chroma_qp_offset_flag) {
int cu_chroma_qp_offset_idx = 0;
if (s->pps->chroma_qp_offset_list_len_minus1 > 0) {
cu_chroma_qp_offset_idx = ff_hevc_cu_chroma_qp_offset_idx(s);
av_log(s->avctx, AV_LOG_ERROR,
"cu_chroma_qp_offset_idx not yet tested.\n");
}
lc->tu.cu_qp_offset_cb = s->pps->cb_qp_offset_list[cu_chroma_qp_offset_idx];
lc->tu.cu_qp_offset_cr = s->pps->cr_qp_offset_list[cu_chroma_qp_offset_idx];
} else {
lc->tu.cu_qp_offset_cb = 0;
lc->tu.cu_qp_offset_cr = 0;
}
lc->tu.is_cu_chroma_qp_offset_coded = 1;
}
if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
if (lc->tu.intra_pred_mode >= 6 &&
lc->tu.intra_pred_mode <= 14) {
scan_idx = SCAN_VERT;
} else if (lc->tu.intra_pred_mode >= 22 &&
lc->tu.intra_pred_mode <= 30) {
scan_idx = SCAN_HORIZ;
}
if (lc->tu.intra_pred_mode_c >= 6 &&
lc->tu.intra_pred_mode_c <= 14) {
scan_idx_c = SCAN_VERT;
} else if (lc->tu.intra_pred_mode_c >= 22 &&
lc->tu.intra_pred_mode_c <= 30) {
scan_idx_c = SCAN_HORIZ;
}
}
lc->tu.cross_pf = 0;
if (cbf_luma)
ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
if (s->sps->chroma_format_idc && (log2_trafo_size > 2 || s->sps->chroma_format_idc == 3)) {
int trafo_size_h = 1 << (log2_trafo_size_c + s->sps->hshift[1]);
int trafo_size_v = 1 << (log2_trafo_size_c + s->sps->vshift[1]);
lc->tu.cross_pf = (s->pps->cross_component_prediction_enabled_flag && cbf_luma &&
(lc->cu.pred_mode == MODE_INTER ||
(lc->tu.chroma_mode_c == 4)));
if (lc->tu.cross_pf) {
hls_cross_component_pred(s, 0);
}
for (i = 0; i < (s->sps->chroma_format_idc == 2 ? 2 : 1); i++) {
if (lc->cu.pred_mode == MODE_INTRA) {
ff_hevc_set_neighbour_available(s, x0, y0 + (i << log2_trafo_size_c), trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0 + (i << log2_trafo_size_c), 1);
}
if (cbf_cb[i])
ff_hevc_hls_residual_coding(s, x0, y0 + (i << log2_trafo_size_c),
log2_trafo_size_c, scan_idx_c, 1);
else
if (lc->tu.cross_pf) {
ptrdiff_t stride = s->frame->linesize[1];
int hshift = s->sps->hshift[1];
int vshift = s->sps->vshift[1];
int16_t *coeffs_y = (int16_t*)lc->edge_emu_buffer;
int16_t *coeffs = (int16_t*)lc->edge_emu_buffer2;
int size = 1 << log2_trafo_size_c;
uint8_t *dst = &s->frame->data[1][(y0 >> vshift) * stride +
((x0 >> hshift) << s->sps->pixel_shift)];
for (i = 0; i < (size * size); i++) {
coeffs[i] = ((lc->tu.res_scale_val * coeffs_y[i]) >> 3);
}
s->hevcdsp.transform_add[log2_trafo_size_c-2](dst, coeffs, stride);
}
}
if (lc->tu.cross_pf) {
hls_cross_component_pred(s, 1);
}
for (i = 0; i < (s->sps->chroma_format_idc == 2 ? 2 : 1); i++) {
if (lc->cu.pred_mode == MODE_INTRA) {
ff_hevc_set_neighbour_available(s, x0, y0 + (i << log2_trafo_size_c), trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0 + (i << log2_trafo_size_c), 2);
}
if (cbf_cr[i])
ff_hevc_hls_residual_coding(s, x0, y0 + (i << log2_trafo_size_c),
log2_trafo_size_c, scan_idx_c, 2);
else
if (lc->tu.cross_pf) {
ptrdiff_t stride = s->frame->linesize[2];
int hshift = s->sps->hshift[2];
int vshift = s->sps->vshift[2];
int16_t *coeffs_y = (int16_t*)lc->edge_emu_buffer;
int16_t *coeffs = (int16_t*)lc->edge_emu_buffer2;
int size = 1 << log2_trafo_size_c;
uint8_t *dst = &s->frame->data[2][(y0 >> vshift) * stride +
((x0 >> hshift) << s->sps->pixel_shift)];
for (i = 0; i < (size * size); i++) {
coeffs[i] = ((lc->tu.res_scale_val * coeffs_y[i]) >> 3);
}
s->hevcdsp.transform_add[log2_trafo_size_c-2](dst, coeffs, stride);
}
}
} else if (s->sps->chroma_format_idc && blk_idx == 3) {
int trafo_size_h = 1 << (log2_trafo_size + 1);
int trafo_size_v = 1 << (log2_trafo_size + s->sps->vshift[1]);
for (i = 0; i < (s->sps->chroma_format_idc == 2 ? 2 : 1); i++) {
if (lc->cu.pred_mode == MODE_INTRA) {
ff_hevc_set_neighbour_available(s, xBase, yBase + (i << log2_trafo_size),
trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase + (i << log2_trafo_size), 1);
}
if (cbf_cb[i])
ff_hevc_hls_residual_coding(s, xBase, yBase + (i << log2_trafo_size),
log2_trafo_size, scan_idx_c, 1);
}
for (i = 0; i < (s->sps->chroma_format_idc == 2 ? 2 : 1); i++) {
if (lc->cu.pred_mode == MODE_INTRA) {
ff_hevc_set_neighbour_available(s, xBase, yBase + (i << log2_trafo_size),
trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase + (i << log2_trafo_size), 2);
}
if (cbf_cr[i])
ff_hevc_hls_residual_coding(s, xBase, yBase + (i << log2_trafo_size),
log2_trafo_size, scan_idx_c, 2);
}
}
} else if (s->sps->chroma_format_idc && lc->cu.pred_mode == MODE_INTRA) {
if (log2_trafo_size > 2 || s->sps->chroma_format_idc == 3) {
int trafo_size_h = 1 << (log2_trafo_size_c + s->sps->hshift[1]);
int trafo_size_v = 1 << (log2_trafo_size_c + s->sps->vshift[1]);
ff_hevc_set_neighbour_available(s, x0, y0, trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0, 1);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0, 2);
if (s->sps->chroma_format_idc == 2) {
ff_hevc_set_neighbour_available(s, x0, y0 + (1 << log2_trafo_size_c),
trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0 + (1 << log2_trafo_size_c), 1);
s->hpc.intra_pred[log2_trafo_size_c - 2](s, x0, y0 + (1 << log2_trafo_size_c), 2);
}
} else if (blk_idx == 3) {
int trafo_size_h = 1 << (log2_trafo_size + 1);
int trafo_size_v = 1 << (log2_trafo_size + s->sps->vshift[1]);
ff_hevc_set_neighbour_available(s, xBase, yBase,
trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 1);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 2);
if (s->sps->chroma_format_idc == 2) {
ff_hevc_set_neighbour_available(s, xBase, yBase + (1 << (log2_trafo_size)),
trafo_size_h, trafo_size_v);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase + (1 << (log2_trafo_size)), 1);
s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase + (1 << (log2_trafo_size)), 2);
}
}
}
return 0;
}
static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
{
int cb_size = 1 << log2_cb_size;
int log2_min_pu_size = s->sps->log2_min_pu_size;
int min_pu_width = s->sps->min_pu_width;
int x_end = FFMIN(x0 + cb_size, s->sps->width);
int y_end = FFMIN(y0 + cb_size, s->sps->height);
int i, j;
for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
s->is_pcm[i + j * min_pu_width] = 2;
}
static int hls_transform_tree(HEVCContext *s, int x0, int y0,
int xBase, int yBase, int cb_xBase, int cb_yBase,
int log2_cb_size, int log2_trafo_size,
int trafo_depth, int blk_idx,
const int *base_cbf_cb, const int *base_cbf_cr)
{
HEVCLocalContext *lc = s->HEVClc;
uint8_t split_transform_flag;
int cbf_cb[2];
int cbf_cr[2];
int ret;
cbf_cb[0] = base_cbf_cb[0];
cbf_cb[1] = base_cbf_cb[1];
cbf_cr[0] = base_cbf_cr[0];
cbf_cr[1] = base_cbf_cr[1];
if (lc->cu.intra_split_flag) {
if (trafo_depth == 1) {
lc->tu.intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
if (s->sps->chroma_format_idc == 3) {
lc->tu.intra_pred_mode_c = lc->pu.intra_pred_mode_c[blk_idx];
lc->tu.chroma_mode_c = lc->pu.chroma_mode_c[blk_idx];
} else {
lc->tu.intra_pred_mode_c = lc->pu.intra_pred_mode_c[0];
lc->tu.chroma_mode_c = lc->pu.chroma_mode_c[0];
}
}
} else {
lc->tu.intra_pred_mode = lc->pu.intra_pred_mode[0];
lc->tu.intra_pred_mode_c = lc->pu.intra_pred_mode_c[0];
lc->tu.chroma_mode_c = lc->pu.chroma_mode_c[0];
}
if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
log2_trafo_size > s->sps->log2_min_tb_size &&
trafo_depth < lc->cu.max_trafo_depth &&
!(lc->cu.intra_split_flag && trafo_depth == 0)) {
split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
} else {
int inter_split = s->sps->max_transform_hierarchy_depth_inter == 0 &&
lc->cu.pred_mode == MODE_INTER &&
lc->cu.part_mode != PART_2Nx2N &&
trafo_depth == 0;
split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
(lc->cu.intra_split_flag && trafo_depth == 0) ||
inter_split;
}
if (s->sps->chroma_format_idc && (log2_trafo_size > 2 || s->sps->chroma_format_idc == 3)) {
if (trafo_depth == 0 || cbf_cb[0]) {
cbf_cb[0] = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
if (s->sps->chroma_format_idc == 2 && (!split_transform_flag || log2_trafo_size == 3)) {
cbf_cb[1] = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
}
}
if (trafo_depth == 0 || cbf_cr[0]) {
cbf_cr[0] = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
if (s->sps->chroma_format_idc == 2 && (!split_transform_flag || log2_trafo_size == 3)) {
cbf_cr[1] = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
}
}
}
if (split_transform_flag) {
const int trafo_size_split = 1 << (log2_trafo_size - 1);
const int x1 = x0 + trafo_size_split;
const int y1 = y0 + trafo_size_split;
#define SUBDIVIDE(x, y, idx) \
do { \
ret = hls_transform_tree(s, x, y, x0, y0, cb_xBase, cb_yBase, log2_cb_size, \
log2_trafo_size - 1, trafo_depth + 1, idx, \
cbf_cb, cbf_cr); \
if (ret < 0) \
return ret; \
} while (0)
SUBDIVIDE(x0, y0, 0);
SUBDIVIDE(x1, y0, 1);
SUBDIVIDE(x0, y1, 2);
SUBDIVIDE(x1, y1, 3);
#undef SUBDIVIDE
} else {
int min_tu_size = 1 << s->sps->log2_min_tb_size;
int log2_min_tu_size = s->sps->log2_min_tb_size;
int min_tu_width = s->sps->min_tb_width;
int cbf_luma = 1;
if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
cbf_cb[0] || cbf_cr[0] ||
(s->sps->chroma_format_idc == 2 && (cbf_cb[1] || cbf_cr[1]))) {
cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
}
ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
log2_cb_size, log2_trafo_size,
blk_idx, cbf_luma, cbf_cb, cbf_cr);
if (ret < 0)
return ret;
// TODO: store cbf_luma somewhere else
if (cbf_luma) {
int i, j;
for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
int x_tu = (x0 + j) >> log2_min_tu_size;
int y_tu = (y0 + i) >> log2_min_tu_size;
s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
}
}
if (!s->sh.disable_deblocking_filter_flag) {
ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
if (s->pps->transquant_bypass_enable_flag &&
lc->cu.cu_transquant_bypass_flag)
set_deblocking_bypass(s, x0, y0, log2_trafo_size);
}
}
return 0;
}
static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
{
HEVCLocalContext *lc = s->HEVClc;
GetBitContext gb;
int cb_size = 1 << log2_cb_size;
int stride0 = s->frame->linesize[0];
uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
int stride1 = s->frame->linesize[1];
uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
int stride2 = s->frame->linesize[2];
uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
int length = cb_size * cb_size * s->sps->pcm.bit_depth +
(((cb_size >> s->sps->hshift[1]) * (cb_size >> s->sps->vshift[1])) +
((cb_size >> s->sps->hshift[2]) * (cb_size >> s->sps->vshift[2]))) *
s->sps->pcm.bit_depth_chroma;
const uint8_t *pcm = skip_bytes(&lc->cc, (length + 7) >> 3);
int ret;
if (!s->sh.disable_deblocking_filter_flag)
ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
ret = init_get_bits(&gb, pcm, length);
if (ret < 0)
return ret;
s->hevcdsp.put_pcm(dst0, stride0, cb_size, cb_size, &gb, s->sps->pcm.bit_depth);
if (s->sps->chroma_format_idc) {
s->hevcdsp.put_pcm(dst1, stride1,
cb_size >> s->sps->hshift[1],
cb_size >> s->sps->vshift[1],
&gb, s->sps->pcm.bit_depth_chroma);
s->hevcdsp.put_pcm(dst2, stride2,
cb_size >> s->sps->hshift[2],
cb_size >> s->sps->vshift[2],
&gb, s->sps->pcm.bit_depth_chroma);
}
return 0;
}
/**
* 8.5.3.2.2.1 Luma sample unidirectional interpolation process
*
* @param s HEVC decoding context
* @param dst target buffer for block data at block position
* @param dststride stride of the dst buffer
* @param ref reference picture buffer at origin (0, 0)
* @param mv motion vector (relative to block position) to get pixel data from
* @param x_off horizontal position of block from origin (0, 0)
* @param y_off vertical position of block from origin (0, 0)
* @param block_w width of block
* @param block_h height of block
* @param luma_weight weighting factor applied to the luma prediction
* @param luma_offset additive offset applied to the luma prediction value
*/
static void luma_mc_uni(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
AVFrame *ref, const Mv *mv, int x_off, int y_off,
int block_w, int block_h, int luma_weight, int luma_offset)
{
HEVCLocalContext *lc = s->HEVClc;
uint8_t *src = ref->data[0];
ptrdiff_t srcstride = ref->linesize[0];
int pic_width = s->sps->width;
int pic_height = s->sps->height;
int mx = mv->x & 3;
int my = mv->y & 3;
int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
(s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
int idx = ff_hevc_pel_weight[block_w];
x_off += mv->x >> 2;
y_off += mv->y >> 2;
src += y_off * srcstride + x_off * (1 << s->sps->pixel_shift);
if (x_off < QPEL_EXTRA_BEFORE || y_off < QPEL_EXTRA_AFTER ||
x_off >= pic_width - block_w - QPEL_EXTRA_AFTER ||
y_off >= pic_height - block_h - QPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset = QPEL_EXTRA_BEFORE * srcstride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset,
edge_emu_stride, srcstride,
block_w + QPEL_EXTRA,
block_h + QPEL_EXTRA,
x_off - QPEL_EXTRA_BEFORE, y_off - QPEL_EXTRA_BEFORE,
pic_width, pic_height);
src = lc->edge_emu_buffer + buf_offset;
srcstride = edge_emu_stride;
}
if (!weight_flag)
s->hevcdsp.put_hevc_qpel_uni[idx][!!my][!!mx](dst, dststride, src, srcstride,
block_h, mx, my, block_w);
else
s->hevcdsp.put_hevc_qpel_uni_w[idx][!!my][!!mx](dst, dststride, src, srcstride,
block_h, s->sh.luma_log2_weight_denom,
luma_weight, luma_offset, mx, my, block_w);
}
/**
* 8.5.3.2.2.1 Luma sample bidirectional interpolation process
*
* @param s HEVC decoding context
* @param dst target buffer for block data at block position
* @param dststride stride of the dst buffer
* @param ref0 reference picture0 buffer at origin (0, 0)
* @param mv0 motion vector0 (relative to block position) to get pixel data from
* @param x_off horizontal position of block from origin (0, 0)
* @param y_off vertical position of block from origin (0, 0)
* @param block_w width of block
* @param block_h height of block
* @param ref1 reference picture1 buffer at origin (0, 0)
* @param mv1 motion vector1 (relative to block position) to get pixel data from
* @param current_mv current motion vector structure
*/
static void luma_mc_bi(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
AVFrame *ref0, const Mv *mv0, int x_off, int y_off,
int block_w, int block_h, AVFrame *ref1, const Mv *mv1, struct MvField *current_mv)
{
HEVCLocalContext *lc = s->HEVClc;
ptrdiff_t src0stride = ref0->linesize[0];
ptrdiff_t src1stride = ref1->linesize[0];
int pic_width = s->sps->width;
int pic_height = s->sps->height;
int mx0 = mv0->x & 3;
int my0 = mv0->y & 3;
int mx1 = mv1->x & 3;
int my1 = mv1->y & 3;
int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
(s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
int x_off0 = x_off + (mv0->x >> 2);
int y_off0 = y_off + (mv0->y >> 2);
int x_off1 = x_off + (mv1->x >> 2);
int y_off1 = y_off + (mv1->y >> 2);
int idx = ff_hevc_pel_weight[block_w];
uint8_t *src0 = ref0->data[0] + y_off0 * src0stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
uint8_t *src1 = ref1->data[0] + y_off1 * src1stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
if (x_off0 < QPEL_EXTRA_BEFORE || y_off0 < QPEL_EXTRA_AFTER ||
x_off0 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
y_off0 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset = QPEL_EXTRA_BEFORE * src0stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset,
edge_emu_stride, src0stride,
block_w + QPEL_EXTRA,
block_h + QPEL_EXTRA,
x_off0 - QPEL_EXTRA_BEFORE, y_off0 - QPEL_EXTRA_BEFORE,
pic_width, pic_height);
src0 = lc->edge_emu_buffer + buf_offset;
src0stride = edge_emu_stride;
}
if (x_off1 < QPEL_EXTRA_BEFORE || y_off1 < QPEL_EXTRA_AFTER ||
x_off1 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
y_off1 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset = QPEL_EXTRA_BEFORE * src1stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src1 - offset,
edge_emu_stride, src1stride,
block_w + QPEL_EXTRA,
block_h + QPEL_EXTRA,
x_off1 - QPEL_EXTRA_BEFORE, y_off1 - QPEL_EXTRA_BEFORE,
pic_width, pic_height);
src1 = lc->edge_emu_buffer2 + buf_offset;
src1stride = edge_emu_stride;
}
s->hevcdsp.put_hevc_qpel[idx][!!my0][!!mx0](lc->tmp, src0, src0stride,
block_h, mx0, my0, block_w);
if (!weight_flag)
s->hevcdsp.put_hevc_qpel_bi[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, lc->tmp,
block_h, mx1, my1, block_w);
else
s->hevcdsp.put_hevc_qpel_bi_w[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, lc->tmp,
block_h, s->sh.luma_log2_weight_denom,
s->sh.luma_weight_l0[current_mv->ref_idx[0]],
s->sh.luma_weight_l1[current_mv->ref_idx[1]],
s->sh.luma_offset_l0[current_mv->ref_idx[0]],
s->sh.luma_offset_l1[current_mv->ref_idx[1]],
mx1, my1, block_w);
}
/**
* 8.5.3.2.2.2 Chroma sample uniprediction interpolation process
*
* @param s HEVC decoding context
* @param dst1 target buffer for block data at block position (U plane)
* @param dst2 target buffer for block data at block position (V plane)
* @param dststride stride of the dst1 and dst2 buffers
* @param ref reference picture buffer at origin (0, 0)
* @param mv motion vector (relative to block position) to get pixel data from
* @param x_off horizontal position of block from origin (0, 0)
* @param y_off vertical position of block from origin (0, 0)
* @param block_w width of block
* @param block_h height of block
* @param chroma_weight weighting factor applied to the chroma prediction
* @param chroma_offset additive offset applied to the chroma prediction value
*/
static void chroma_mc_uni(HEVCContext *s, uint8_t *dst0,
ptrdiff_t dststride, uint8_t *src0, ptrdiff_t srcstride, int reflist,
int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int chroma_weight, int chroma_offset)
{
HEVCLocalContext *lc = s->HEVClc;
int pic_width = s->sps->width >> s->sps->hshift[1];
int pic_height = s->sps->height >> s->sps->vshift[1];
const Mv *mv = &current_mv->mv[reflist];
int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
(s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
int idx = ff_hevc_pel_weight[block_w];
int hshift = s->sps->hshift[1];
int vshift = s->sps->vshift[1];
intptr_t mx = av_mod_uintp2(mv->x, 2 + hshift);
intptr_t my = av_mod_uintp2(mv->y, 2 + vshift);
intptr_t _mx = mx << (1 - hshift);
intptr_t _my = my << (1 - vshift);
x_off += mv->x >> (2 + hshift);
y_off += mv->y >> (2 + vshift);
src0 += y_off * srcstride + x_off * (1 << s->sps->pixel_shift);
if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset0 = EPEL_EXTRA_BEFORE * (srcstride + (1 << s->sps->pixel_shift));
int buf_offset0 = EPEL_EXTRA_BEFORE *
(edge_emu_stride + (1 << s->sps->pixel_shift));
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset0,
edge_emu_stride, srcstride,
block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
x_off - EPEL_EXTRA_BEFORE,
y_off - EPEL_EXTRA_BEFORE,
pic_width, pic_height);
src0 = lc->edge_emu_buffer + buf_offset0;
srcstride = edge_emu_stride;
}
if (!weight_flag)
s->hevcdsp.put_hevc_epel_uni[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
block_h, _mx, _my, block_w);
else
s->hevcdsp.put_hevc_epel_uni_w[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
block_h, s->sh.chroma_log2_weight_denom,
chroma_weight, chroma_offset, _mx, _my, block_w);
}
/**
* 8.5.3.2.2.2 Chroma sample bidirectional interpolation process
*
* @param s HEVC decoding context
* @param dst target buffer for block data at block position
* @param dststride stride of the dst buffer
* @param ref0 reference picture0 buffer at origin (0, 0)
* @param mv0 motion vector0 (relative to block position) to get pixel data from
* @param x_off horizontal position of block from origin (0, 0)
* @param y_off vertical position of block from origin (0, 0)
* @param block_w width of block
* @param block_h height of block
* @param ref1 reference picture1 buffer at origin (0, 0)
* @param mv1 motion vector1 (relative to block position) to get pixel data from
* @param current_mv current motion vector structure
* @param cidx chroma component(cb, cr)
*/
static void chroma_mc_bi(HEVCContext *s, uint8_t *dst0, ptrdiff_t dststride, AVFrame *ref0, AVFrame *ref1,
int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int cidx)
{
HEVCLocalContext *lc = s->HEVClc;
uint8_t *src1 = ref0->data[cidx+1];
uint8_t *src2 = ref1->data[cidx+1];
ptrdiff_t src1stride = ref0->linesize[cidx+1];
ptrdiff_t src2stride = ref1->linesize[cidx+1];
int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
(s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
int pic_width = s->sps->width >> s->sps->hshift[1];
int pic_height = s->sps->height >> s->sps->vshift[1];
Mv *mv0 = &current_mv->mv[0];
Mv *mv1 = &current_mv->mv[1];
int hshift = s->sps->hshift[1];
int vshift = s->sps->vshift[1];
intptr_t mx0 = av_mod_uintp2(mv0->x, 2 + hshift);
intptr_t my0 = av_mod_uintp2(mv0->y, 2 + vshift);
intptr_t mx1 = av_mod_uintp2(mv1->x, 2 + hshift);
intptr_t my1 = av_mod_uintp2(mv1->y, 2 + vshift);
intptr_t _mx0 = mx0 << (1 - hshift);
intptr_t _my0 = my0 << (1 - vshift);
intptr_t _mx1 = mx1 << (1 - hshift);
intptr_t _my1 = my1 << (1 - vshift);
int x_off0 = x_off + (mv0->x >> (2 + hshift));
int y_off0 = y_off + (mv0->y >> (2 + vshift));
int x_off1 = x_off + (mv1->x >> (2 + hshift));
int y_off1 = y_off + (mv1->y >> (2 + vshift));
int idx = ff_hevc_pel_weight[block_w];
src1 += y_off0 * src1stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
src2 += y_off1 * src2stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
if (x_off0 < EPEL_EXTRA_BEFORE || y_off0 < EPEL_EXTRA_AFTER ||
x_off0 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
y_off0 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
int buf_offset1 = EPEL_EXTRA_BEFORE *
(edge_emu_stride + (1 << s->sps->pixel_shift));
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1,
edge_emu_stride, src1stride,
block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
x_off0 - EPEL_EXTRA_BEFORE,
y_off0 - EPEL_EXTRA_BEFORE,
pic_width, pic_height);
src1 = lc->edge_emu_buffer + buf_offset1;
src1stride = edge_emu_stride;
}
if (x_off1 < EPEL_EXTRA_BEFORE || y_off1 < EPEL_EXTRA_AFTER ||
x_off1 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
y_off1 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
int offset1 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
int buf_offset1 = EPEL_EXTRA_BEFORE *
(edge_emu_stride + (1 << s->sps->pixel_shift));
s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src2 - offset1,
edge_emu_stride, src2stride,
block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
x_off1 - EPEL_EXTRA_BEFORE,
y_off1 - EPEL_EXTRA_BEFORE,
pic_width, pic_height);
src2 = lc->edge_emu_buffer2 + buf_offset1;
src2stride = edge_emu_stride;
}
s->hevcdsp.put_hevc_epel[idx][!!my0][!!mx0](lc->tmp, src1, src1stride,
block_h, _mx0, _my0, block_w);
if (!weight_flag)
s->hevcdsp.put_hevc_epel_bi[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
src2, src2stride, lc->tmp,
block_h, _mx1, _my1, block_w);
else
s->hevcdsp.put_hevc_epel_bi_w[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
src2, src2stride, lc->tmp,
block_h,
s->sh.chroma_log2_weight_denom,
s->sh.chroma_weight_l0[current_mv->ref_idx[0]][cidx],
s->sh.chroma_weight_l1[current_mv->ref_idx[1]][cidx],
s->sh.chroma_offset_l0[current_mv->ref_idx[0]][cidx],
s->sh.chroma_offset_l1[current_mv->ref_idx[1]][cidx],
_mx1, _my1, block_w);
}
static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
const Mv *mv, int y0, int height)
{
int y = FFMAX(0, (mv->y >> 2) + y0 + height + 9);
if (s->threads_type == FF_THREAD_FRAME )
ff_thread_await_progress(&ref->tf, y, 0);
}
static void hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0, int nPbW,
int nPbH, int log2_cb_size, int part_idx,
int merge_idx, MvField *mv)
{
HEVCLocalContext *lc = s->HEVClc;
enum InterPredIdc inter_pred_idc = PRED_L0;
int mvp_flag;
ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
mv->pred_flag = 0;
if (s->sh.slice_type == B_SLICE)
inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
if (inter_pred_idc != PRED_L1) {
if (s->sh.nb_refs[L0])
mv->ref_idx[0]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
mv->pred_flag = PF_L0;
ff_hevc_hls_mvd_coding(s, x0, y0, 0);
mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
part_idx, merge_idx, mv, mvp_flag, 0);
mv->mv[0].x += lc->pu.mvd.x;
mv->mv[0].y += lc->pu.mvd.y;
}
if (inter_pred_idc != PRED_L0) {
if (s->sh.nb_refs[L1])
mv->ref_idx[1]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
AV_ZERO32(&lc->pu.mvd);
} else {
ff_hevc_hls_mvd_coding(s, x0, y0, 1);
}
mv->pred_flag += PF_L1;
mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
part_idx, merge_idx, mv, mvp_flag, 1);
mv->mv[1].x += lc->pu.mvd.x;
mv->mv[1].y += lc->pu.mvd.y;
}
}
static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
int nPbW, int nPbH,
int log2_cb_size, int partIdx, int idx)
{
#define POS(c_idx, x, y) \
&s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
(((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
HEVCLocalContext *lc = s->HEVClc;
int merge_idx = 0;
struct MvField current_mv = {{{ 0 }}};
int min_pu_width = s->sps->min_pu_width;
MvField *tab_mvf = s->ref->tab_mvf;
RefPicList *refPicList = s->ref->refPicList;
HEVCFrame *ref0 = NULL, *ref1 = NULL;
uint8_t *dst0 = POS(0, x0, y0);
uint8_t *dst1 = POS(1, x0, y0);
uint8_t *dst2 = POS(2, x0, y0);
int log2_min_cb_size = s->sps->log2_min_cb_size;
int min_cb_width = s->sps->min_cb_width;
int x_cb = x0 >> log2_min_cb_size;
int y_cb = y0 >> log2_min_cb_size;
int x_pu, y_pu;
int i, j;
int skip_flag = SAMPLE_CTB(s->skip_flag, x_cb, y_cb);
if (!skip_flag)
lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
if (skip_flag || lc->pu.merge_flag) {
if (s->sh.max_num_merge_cand > 1)
merge_idx = ff_hevc_merge_idx_decode(s);
else
merge_idx = 0;
ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
partIdx, merge_idx, &current_mv);
} else {
hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
partIdx, merge_idx, &current_mv);
}
x_pu = x0 >> s->sps->log2_min_pu_size;
y_pu = y0 >> s->sps->log2_min_pu_size;
for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
if (current_mv.pred_flag & PF_L0) {
ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
if (!ref0)
return;
hevc_await_progress(s, ref0, &current_mv.mv[0], y0, nPbH);
}
if (current_mv.pred_flag & PF_L1) {
ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
if (!ref1)
return;
hevc_await_progress(s, ref1, &current_mv.mv[1], y0, nPbH);
}
if (current_mv.pred_flag == PF_L0) {
int x0_c = x0 >> s->sps->hshift[1];
int y0_c = y0 >> s->sps->vshift[1];
int nPbW_c = nPbW >> s->sps->hshift[1];
int nPbH_c = nPbH >> s->sps->vshift[1];
luma_mc_uni(s, dst0, s->frame->linesize[0], ref0->frame,
&current_mv.mv[0], x0, y0, nPbW, nPbH,
s->sh.luma_weight_l0[current_mv.ref_idx[0]],
s->sh.luma_offset_l0[current_mv.ref_idx[0]]);
if (s->sps->chroma_format_idc) {
chroma_mc_uni(s, dst1, s->frame->linesize[1], ref0->frame->data[1], ref0->frame->linesize[1],
0, x0_c, y0_c, nPbW_c, nPbH_c, &current_mv,
s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0]);
chroma_mc_uni(s, dst2, s->frame->linesize[2], ref0->frame->data[2], ref0->frame->linesize[2],
0, x0_c, y0_c, nPbW_c, nPbH_c, &current_mv,
s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1]);
}
} else if (current_mv.pred_flag == PF_L1) {
int x0_c = x0 >> s->sps->hshift[1];
int y0_c = y0 >> s->sps->vshift[1];
int nPbW_c = nPbW >> s->sps->hshift[1];
int nPbH_c = nPbH >> s->sps->vshift[1];
luma_mc_uni(s, dst0, s->frame->linesize[0], ref1->frame,
&current_mv.mv[1], x0, y0, nPbW, nPbH,
s->sh.luma_weight_l1[current_mv.ref_idx[1]],
s->sh.luma_offset_l1[current_mv.ref_idx[1]]);
if (s->sps->chroma_format_idc) {
chroma_mc_uni(s, dst1, s->frame->linesize[1], ref1->frame->data[1], ref1->frame->linesize[1],
1, x0_c, y0_c, nPbW_c, nPbH_c, &current_mv,
s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0]);
chroma_mc_uni(s, dst2, s->frame->linesize[2], ref1->frame->data[2], ref1->frame->linesize[2],
1, x0_c, y0_c, nPbW_c, nPbH_c, &current_mv,
s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1]);
}
} else if (current_mv.pred_flag == PF_BI) {
int x0_c = x0 >> s->sps->hshift[1];
int y0_c = y0 >> s->sps->vshift[1];
int nPbW_c = nPbW >> s->sps->hshift[1];
int nPbH_c = nPbH >> s->sps->vshift[1];
luma_mc_bi(s, dst0, s->frame->linesize[0], ref0->frame,
&current_mv.mv[0], x0, y0, nPbW, nPbH,
ref1->frame, &current_mv.mv[1], &current_mv);
if (s->sps->chroma_format_idc) {
chroma_mc_bi(s, dst1, s->frame->linesize[1], ref0->frame, ref1->frame,
x0_c, y0_c, nPbW_c, nPbH_c, &current_mv, 0);
chroma_mc_bi(s, dst2, s->frame->linesize[2], ref0->frame, ref1->frame,
x0_c, y0_c, nPbW_c, nPbH_c, &current_mv, 1);
}
}
}
/**
* 8.4.1
*/
static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
int prev_intra_luma_pred_flag)
{
HEVCLocalContext *lc = s->HEVClc;
int x_pu = x0 >> s->sps->log2_min_pu_size;
int y_pu = y0 >> s->sps->log2_min_pu_size;
int min_pu_width = s->sps->min_pu_width;
int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
int x0b = av_mod_uintp2(x0, s->sps->log2_ctb_size);
int y0b = av_mod_uintp2(y0, s->sps->log2_ctb_size);
int cand_up = (lc->ctb_up_flag || y0b) ?
s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
int cand_left = (lc->ctb_left_flag || x0b) ?
s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
MvField *tab_mvf = s->ref->tab_mvf;
int intra_pred_mode;
int candidate[3];
int i, j;
// intra_pred_mode prediction does not cross vertical CTB boundaries
if ((y0 - 1) < y_ctb)
cand_up = INTRA_DC;
if (cand_left == cand_up) {
if (cand_left < 2) {
candidate[0] = INTRA_PLANAR;
candidate[1] = INTRA_DC;
candidate[2] = INTRA_ANGULAR_26;
} else {
candidate[0] = cand_left;
candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
}
} else {
candidate[0] = cand_left;
candidate[1] = cand_up;
if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
candidate[2] = INTRA_PLANAR;
} else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
candidate[2] = INTRA_DC;
} else {
candidate[2] = INTRA_ANGULAR_26;
}
}
if (prev_intra_luma_pred_flag) {
intra_pred_mode = candidate[lc->pu.mpm_idx];
} else {
if (candidate[0] > candidate[1])
FFSWAP(uint8_t, candidate[0], candidate[1]);
if (candidate[0] > candidate[2])
FFSWAP(uint8_t, candidate[0], candidate[2]);
if (candidate[1] > candidate[2])
FFSWAP(uint8_t, candidate[1], candidate[2]);
intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
for (i = 0; i < 3; i++)
if (intra_pred_mode >= candidate[i])
intra_pred_mode++;
}
/* write the intra prediction units into the mv array */
if (!size_in_pus)
size_in_pus = 1;
for (i = 0; i < size_in_pus; i++) {
memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
intra_pred_mode, size_in_pus);
for (j = 0; j < size_in_pus; j++) {
tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag = PF_INTRA;
}
}
return intra_pred_mode;
}
static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
int log2_cb_size, int ct_depth)
{
int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
int x_cb = x0 >> s->sps->log2_min_cb_size;
int y_cb = y0 >> s->sps->log2_min_cb_size;
int y;
for (y = 0; y < length; y++)
memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
ct_depth, length);
}
static const uint8_t tab_mode_idx[] = {
0, 1, 2, 2, 2, 2, 3, 5, 7, 8, 10, 12, 13, 15, 17, 18, 19, 20,
21, 22, 23, 23, 24, 24, 25, 25, 26, 27, 27, 28, 28, 29, 29, 30, 31};
static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
int log2_cb_size)
{
HEVCLocalContext *lc = s->HEVClc;
static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
uint8_t prev_intra_luma_pred_flag[4];
int split = lc->cu.part_mode == PART_NxN;
int pb_size = (1 << log2_cb_size) >> split;
int side = split + 1;
int chroma_mode;
int i, j;
for (i = 0; i < side; i++)
for (j = 0; j < side; j++)
prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
for (i = 0; i < side; i++) {
for (j = 0; j < side; j++) {
if (prev_intra_luma_pred_flag[2 * i + j])
lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
else
lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
lc->pu.intra_pred_mode[2 * i + j] =
luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
prev_intra_luma_pred_flag[2 * i + j]);
}
}
if (s->sps->chroma_format_idc == 3) {
for (i = 0; i < side; i++) {
for (j = 0; j < side; j++) {
lc->pu.chroma_mode_c[2 * i + j] = chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
if (chroma_mode != 4) {
if (lc->pu.intra_pred_mode[2 * i + j] == intra_chroma_table[chroma_mode])
lc->pu.intra_pred_mode_c[2 * i + j] = 34;
else
lc->pu.intra_pred_mode_c[2 * i + j] = intra_chroma_table[chroma_mode];
} else {
lc->pu.intra_pred_mode_c[2 * i + j] = lc->pu.intra_pred_mode[2 * i + j];
}
}
}
} else if (s->sps->chroma_format_idc == 2) {
int mode_idx;
lc->pu.chroma_mode_c[0] = chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
if (chroma_mode != 4) {
if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
mode_idx = 34;
else
mode_idx = intra_chroma_table[chroma_mode];
} else {
mode_idx = lc->pu.intra_pred_mode[0];
}
lc->pu.intra_pred_mode_c[0] = tab_mode_idx[mode_idx];
} else if (s->sps->chroma_format_idc != 0) {
chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
if (chroma_mode != 4) {
if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
lc->pu.intra_pred_mode_c[0] = 34;
else
lc->pu.intra_pred_mode_c[0] = intra_chroma_table[chroma_mode];
} else {
lc->pu.intra_pred_mode_c[0] = lc->pu.intra_pred_mode[0];
}
}
}
static void intra_prediction_unit_default_value(HEVCContext *s,
int x0, int y0,
int log2_cb_size)
{
HEVCLocalContext *lc = s->HEVClc;
int pb_size = 1 << log2_cb_size;
int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
int min_pu_width = s->sps->min_pu_width;
MvField *tab_mvf = s->ref->tab_mvf;
int x_pu = x0 >> s->sps->log2_min_pu_size;
int y_pu = y0 >> s->sps->log2_min_pu_size;
int j, k;
if (size_in_pus == 0)
size_in_pus = 1;
for (j = 0; j < size_in_pus; j++)
memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
if (lc->cu.pred_mode == MODE_INTRA)
for (j = 0; j < size_in_pus; j++)
for (k = 0; k < size_in_pus; k++)
tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].pred_flag = PF_INTRA;
}
static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
{
int cb_size = 1 << log2_cb_size;
HEVCLocalContext *lc = s->HEVClc;
int log2_min_cb_size = s->sps->log2_min_cb_size;
int length = cb_size >> log2_min_cb_size;
int min_cb_width = s->sps->min_cb_width;
int x_cb = x0 >> log2_min_cb_size;
int y_cb = y0 >> log2_min_cb_size;
int idx = log2_cb_size - 2;
int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
int x, y, ret;
lc->cu.x = x0;
lc->cu.y = y0;
lc->cu.pred_mode = MODE_INTRA;
lc->cu.part_mode = PART_2Nx2N;
lc->cu.intra_split_flag = 0;
SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
for (x = 0; x < 4; x++)
lc->pu.intra_pred_mode[x] = 1;
if (s->pps->transquant_bypass_enable_flag) {
lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
if (lc->cu.cu_transquant_bypass_flag)
set_deblocking_bypass(s, x0, y0, log2_cb_size);
} else
lc->cu.cu_transquant_bypass_flag = 0;
if (s->sh.slice_type != I_SLICE) {
uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
x = y_cb * min_cb_width + x_cb;
for (y = 0; y < length; y++) {
memset(&s->skip_flag[x], skip_flag, length);
x += min_cb_width;
}
lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
} else {
x = y_cb * min_cb_width + x_cb;
for (y = 0; y < length; y++) {
memset(&s->skip_flag[x], 0, length);
x += min_cb_width;
}
}
if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0, idx);
intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
if (!s->sh.disable_deblocking_filter_flag)
ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
} else {
int pcm_flag = 0;
if (s->sh.slice_type != I_SLICE)
lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
if (lc->cu.pred_mode != MODE_INTRA ||
log2_cb_size == s->sps->log2_min_cb_size) {
lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
lc->cu.pred_mode == MODE_INTRA;
}
if (lc->cu.pred_mode == MODE_INTRA) {
if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
pcm_flag = ff_hevc_pcm_flag_decode(s);
}
if (pcm_flag) {
intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
if (s->sps->pcm.loop_filter_disable_flag)
set_deblocking_bypass(s, x0, y0, log2_cb_size);
if (ret < 0)
return ret;
} else {
intra_prediction_unit(s, x0, y0, log2_cb_size);
}
} else {
intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
switch (lc->cu.part_mode) {
case PART_2Nx2N:
hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0, idx);
break;
case PART_2NxN:
hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0, idx);
hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1, idx);
break;
case PART_Nx2N:
hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0, idx - 1);
hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1, idx - 1);
break;
case PART_2NxnU:
hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0, idx);
hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1, idx);
break;
case PART_2NxnD:
hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0, idx);
hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1, idx);
break;
case PART_nLx2N:
hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0, idx - 2);
hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1, idx - 2);
break;
case PART_nRx2N:
hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0, idx - 2);
hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1, idx - 2);
break;
case PART_NxN:
hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0, idx - 1);
hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1, idx - 1);
hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2, idx - 1);
hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3, idx - 1);
break;
}
}
if (!pcm_flag) {
int rqt_root_cbf = 1;
if (lc->cu.pred_mode != MODE_INTRA &&
!(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
}
if (rqt_root_cbf) {
const static int cbf[2] = { 0 };
lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
s->sps->max_transform_hierarchy_depth_inter;
ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
log2_cb_size,
log2_cb_size, 0, 0, cbf, cbf);
if (ret < 0)
return ret;
} else {
if (!s->sh.disable_deblocking_filter_flag)
ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
}
}
}
if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
ff_hevc_set_qPy(s, x0, y0, log2_cb_size);
x = y_cb * min_cb_width + x_cb;
for (y = 0; y < length; y++) {
memset(&s->qp_y_tab[x], lc->qp_y, length);
x += min_cb_width;
}
if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0) {
lc->qPy_pred = lc->qp_y;
}
set_ct_depth(s, x0, y0, log2_cb_size, lc->ct_depth);
return 0;
}
static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
int log2_cb_size, int cb_depth)
{
HEVCLocalContext *lc = s->HEVClc;
const int cb_size = 1 << log2_cb_size;
int ret;
int split_cu;
lc->ct_depth = cb_depth;
if (x0 + cb_size <= s->sps->width &&
y0 + cb_size <= s->sps->height &&
log2_cb_size > s->sps->log2_min_cb_size) {
split_cu = ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
} else {
split_cu = (log2_cb_size > s->sps->log2_min_cb_size);
}
if (s->pps->cu_qp_delta_enabled_flag &&
log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
lc->tu.is_cu_qp_delta_coded = 0;
lc->tu.cu_qp_delta = 0;
}
if (s->sh.cu_chroma_qp_offset_enabled_flag &&
log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_chroma_qp_offset_depth) {
lc->tu.is_cu_chroma_qp_offset_coded = 0;
}
if (split_cu) {
int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
const int cb_size_split = cb_size >> 1;
const int x1 = x0 + cb_size_split;
const int y1 = y0 + cb_size_split;
int more_data = 0;
more_data = hls_coding_quadtree(s, x0, y0, log2_cb_size - 1, cb_depth + 1);
if (more_data < 0)
return more_data;
if (more_data && x1 < s->sps->width) {
more_data = hls_coding_quadtree(s, x1, y0, log2_cb_size - 1, cb_depth + 1);
if (more_data < 0)
return more_data;
}
if (more_data && y1 < s->sps->height) {
more_data = hls_coding_quadtree(s, x0, y1, log2_cb_size - 1, cb_depth + 1);
if (more_data < 0)
return more_data;
}
if (more_data && x1 < s->sps->width &&
y1 < s->sps->height) {
more_data = hls_coding_quadtree(s, x1, y1, log2_cb_size - 1, cb_depth + 1);
if (more_data < 0)
return more_data;
}
if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0)
lc->qPy_pred = lc->qp_y;
if (more_data)
return ((x1 + cb_size_split) < s->sps->width ||
(y1 + cb_size_split) < s->sps->height);
else
return 0;
} else {
ret = hls_coding_unit(s, x0, y0, log2_cb_size);
if (ret < 0)
return ret;
if ((!((x0 + cb_size) %
(1 << (s->sps->log2_ctb_size))) ||
(x0 + cb_size >= s->sps->width)) &&
(!((y0 + cb_size) %
(1 << (s->sps->log2_ctb_size))) ||
(y0 + cb_size >= s->sps->height))) {
int end_of_slice_flag = ff_hevc_end_of_slice_flag_decode(s);
return !end_of_slice_flag;
} else {
return 1;
}
}
return 0;
}
static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
int ctb_addr_ts)
{
HEVCLocalContext *lc = s->HEVClc;
int ctb_size = 1 << s->sps->log2_ctb_size;
int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
if (s->pps->entropy_coding_sync_enabled_flag) {
if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
lc->first_qp_group = 1;
lc->end_of_tiles_x = s->sps->width;
} else if (s->pps->tiles_enabled_flag) {
if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
lc->first_qp_group = 1;
}
} else {
lc->end_of_tiles_x = s->sps->width;
}
lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
lc->boundary_flags = 0;
if (s->pps->tiles_enabled_flag) {
if (x_ctb > 0 && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]])
lc->boundary_flags |= BOUNDARY_LEFT_TILE;
if (x_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1])
lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
if (y_ctb > 0 && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]])
lc->boundary_flags |= BOUNDARY_UPPER_TILE;
if (y_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width])
lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
} else {
if (ctb_addr_in_slice <= 0)
lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
if (ctb_addr_in_slice < s->sps->ctb_width)
lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
}
lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !(lc->boundary_flags & BOUNDARY_LEFT_TILE));
lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !(lc->boundary_flags & BOUNDARY_UPPER_TILE));
lc->ctb_up_right_flag = ((y_ctb > 0) && (ctb_addr_in_slice+1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1 - s->sps->ctb_width]]));
lc->ctb_up_left_flag = ((x_ctb > 0) && (y_ctb > 0) && (ctb_addr_in_slice-1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1 - s->sps->ctb_width]]));
}
static int hls_decode_entry(AVCodecContext *avctxt, void *isFilterThread)
{
HEVCContext *s = avctxt->priv_data;
int ctb_size = 1 << s->sps->log2_ctb_size;
int more_data = 1;
int x_ctb = 0;
int y_ctb = 0;
int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
if (!ctb_addr_ts && s->sh.dependent_slice_segment_flag) {
av_log(s->avctx, AV_LOG_ERROR, "Impossible initial tile.\n");
return AVERROR_INVALIDDATA;
}
if (s->sh.dependent_slice_segment_flag) {
int prev_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts - 1];
if (s->tab_slice_address[prev_rs] != s->sh.slice_addr) {
av_log(s->avctx, AV_LOG_ERROR, "Previous slice segment missing\n");
return AVERROR_INVALIDDATA;
}
}
while (more_data && ctb_addr_ts < s->sps->ctb_size) {
int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
ff_hevc_cabac_init(s, ctb_addr_ts);
hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
if (more_data < 0) {
s->tab_slice_address[ctb_addr_rs] = -1;
return more_data;
}
ctb_addr_ts++;
ff_hevc_save_states(s, ctb_addr_ts);
ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
}
if (x_ctb + ctb_size >= s->sps->width &&
y_ctb + ctb_size >= s->sps->height)
ff_hevc_hls_filter(s, x_ctb, y_ctb, ctb_size);
return ctb_addr_ts;
}
static int hls_slice_data(HEVCContext *s)
{
int arg[2];
int ret[2];
arg[0] = 0;
arg[1] = 1;
s->avctx->execute(s->avctx, hls_decode_entry, arg, ret , 1, sizeof(int));
return ret[0];
}
static int hls_decode_entry_wpp(AVCodecContext *avctxt, void *input_ctb_row, int job, int self_id)
{
HEVCContext *s1 = avctxt->priv_data, *s;
HEVCLocalContext *lc;
int ctb_size = 1<< s1->sps->log2_ctb_size;
int more_data = 1;
int *ctb_row_p = input_ctb_row;
int ctb_row = ctb_row_p[job];
int ctb_addr_rs = s1->sh.slice_ctb_addr_rs + ctb_row * ((s1->sps->width + ctb_size - 1) >> s1->sps->log2_ctb_size);
int ctb_addr_ts = s1->pps->ctb_addr_rs_to_ts[ctb_addr_rs];
int thread = ctb_row % s1->threads_number;
int ret;
s = s1->sList[self_id];
lc = s->HEVClc;
if(ctb_row) {
ret = init_get_bits8(&lc->gb, s->data + s->sh.offset[ctb_row - 1], s->sh.size[ctb_row - 1]);
if (ret < 0)
return ret;
ff_init_cabac_decoder(&lc->cc, s->data + s->sh.offset[(ctb_row)-1], s->sh.size[ctb_row - 1]);
}
while(more_data && ctb_addr_ts < s->sps->ctb_size) {
int x_ctb = (ctb_addr_rs % s->sps->ctb_width) << s->sps->log2_ctb_size;
int y_ctb = (ctb_addr_rs / s->sps->ctb_width) << s->sps->log2_ctb_size;
hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
ff_thread_await_progress2(s->avctx, ctb_row, thread, SHIFT_CTB_WPP);
if (avpriv_atomic_int_get(&s1->wpp_err)){
ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
return 0;
}
ff_hevc_cabac_init(s, ctb_addr_ts);
hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
if (more_data < 0) {
s->tab_slice_address[ctb_addr_rs] = -1;
return more_data;
}
ctb_addr_ts++;
ff_hevc_save_states(s, ctb_addr_ts);
ff_thread_report_progress2(s->avctx, ctb_row, thread, 1);
ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
if (!more_data && (x_ctb+ctb_size) < s->sps->width && ctb_row != s->sh.num_entry_point_offsets) {
avpriv_atomic_int_set(&s1->wpp_err, 1);
ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
return 0;
}
if ((x_ctb+ctb_size) >= s->sps->width && (y_ctb+ctb_size) >= s->sps->height ) {
ff_hevc_hls_filter(s, x_ctb, y_ctb, ctb_size);
ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
return ctb_addr_ts;
}
ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
x_ctb+=ctb_size;
if(x_ctb >= s->sps->width) {
break;
}
}
ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
return 0;
}
static int hls_slice_data_wpp(HEVCContext *s, const uint8_t *nal, int length)
{
HEVCLocalContext *lc = s->HEVClc;
int *ret = av_malloc_array(s->sh.num_entry_point_offsets + 1, sizeof(int));
int *arg = av_malloc_array(s->sh.num_entry_point_offsets + 1, sizeof(int));
int offset;
int startheader, cmpt = 0;
int i, j, res = 0;
if (!ret || !arg) {
av_free(ret);
av_free(arg);
return AVERROR(ENOMEM);
}
if (!s->sList[1]) {
ff_alloc_entries(s->avctx, s->sh.num_entry_point_offsets + 1);
for (i = 1; i < s->threads_number; i++) {
s->sList[i] = av_malloc(sizeof(HEVCContext));
memcpy(s->sList[i], s, sizeof(HEVCContext));
s->HEVClcList[i] = av_mallocz(sizeof(HEVCLocalContext));
s->sList[i]->HEVClc = s->HEVClcList[i];
}
}
offset = (lc->gb.index >> 3);
for (j = 0, cmpt = 0, startheader = offset + s->sh.entry_point_offset[0]; j < s->skipped_bytes; j++) {
if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
startheader--;
cmpt++;
}
}
for (i = 1; i < s->sh.num_entry_point_offsets; i++) {
offset += (s->sh.entry_point_offset[i - 1] - cmpt);
for (j = 0, cmpt = 0, startheader = offset
+ s->sh.entry_point_offset[i]; j < s->skipped_bytes; j++) {
if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
startheader--;
cmpt++;
}
}
s->sh.size[i - 1] = s->sh.entry_point_offset[i] - cmpt;
s->sh.offset[i - 1] = offset;
}
if (s->sh.num_entry_point_offsets != 0) {
offset += s->sh.entry_point_offset[s->sh.num_entry_point_offsets - 1] - cmpt;
s->sh.size[s->sh.num_entry_point_offsets - 1] = length - offset;
s->sh.offset[s->sh.num_entry_point_offsets - 1] = offset;
}
s->data = nal;
for (i = 1; i < s->threads_number; i++) {
s->sList[i]->HEVClc->first_qp_group = 1;
s->sList[i]->HEVClc->qp_y = s->sList[0]->HEVClc->qp_y;
memcpy(s->sList[i], s, sizeof(HEVCContext));
s->sList[i]->HEVClc = s->HEVClcList[i];
}
avpriv_atomic_int_set(&s->wpp_err, 0);
ff_reset_entries(s->avctx);
for (i = 0; i <= s->sh.num_entry_point_offsets; i++) {
arg[i] = i;
ret[i] = 0;
}
if (s->pps->entropy_coding_sync_enabled_flag)
s->avctx->execute2(s->avctx, (void *) hls_decode_entry_wpp, arg, ret, s->sh.num_entry_point_offsets + 1);
for (i = 0; i <= s->sh.num_entry_point_offsets; i++)
res += ret[i];
av_free(ret);
av_free(arg);
return res;
}
/**
* @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
* 0 if the unit should be skipped, 1 otherwise
*/
static int hls_nal_unit(HEVCContext *s)
{
GetBitContext *gb = &s->HEVClc->gb;
int nuh_layer_id;
if (get_bits1(gb) != 0)
return AVERROR_INVALIDDATA;
s->nal_unit_type = get_bits(gb, 6);
nuh_layer_id = get_bits(gb, 6);
s->temporal_id = get_bits(gb, 3) - 1;
if (s->temporal_id < 0)
return AVERROR_INVALIDDATA;
av_log(s->avctx, AV_LOG_DEBUG,
"nal_unit_type: %d, nuh_layer_id: %d, temporal_id: %d\n",
s->nal_unit_type, nuh_layer_id, s->temporal_id);
return nuh_layer_id == 0;
}
static int set_side_data(HEVCContext *s)
{
AVFrame *out = s->ref->frame;
if (s->sei_frame_packing_present &&
s->frame_packing_arrangement_type >= 3 &&
s->frame_packing_arrangement_type <= 5 &&
s->content_interpretation_type > 0 &&
s->content_interpretation_type < 3) {
AVStereo3D *stereo = av_stereo3d_create_side_data(out);
if (!stereo)
return AVERROR(ENOMEM);
switch (s->frame_packing_arrangement_type) {
case 3:
if (s->quincunx_subsampling)
stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
else
stereo->type = AV_STEREO3D_SIDEBYSIDE;
break;
case 4:
stereo->type = AV_STEREO3D_TOPBOTTOM;
break;
case 5:
stereo->type = AV_STEREO3D_FRAMESEQUENCE;
break;
}
if (s->content_interpretation_type == 2)
stereo->flags = AV_STEREO3D_FLAG_INVERT;
}
if (s->sei_display_orientation_present &&
(s->sei_anticlockwise_rotation || s->sei_hflip || s->sei_vflip)) {
double angle = s->sei_anticlockwise_rotation * 360 / (double) (1 << 16);
AVFrameSideData *rotation = av_frame_new_side_data(out,
AV_FRAME_DATA_DISPLAYMATRIX,
sizeof(int32_t) * 9);
if (!rotation)
return AVERROR(ENOMEM);
av_display_rotation_set((int32_t *)rotation->data, angle);
av_display_matrix_flip((int32_t *)rotation->data,
s->sei_hflip, s->sei_vflip);
}
return 0;
}
static int hevc_frame_start(HEVCContext *s)
{
HEVCLocalContext *lc = s->HEVClc;
int pic_size_in_ctb = ((s->sps->width >> s->sps->log2_min_cb_size) + 1) *
((s->sps->height >> s->sps->log2_min_cb_size) + 1);
int ret;
memset(s->horizontal_bs, 0, s->bs_width * s->bs_height);
memset(s->vertical_bs, 0, s->bs_width * s->bs_height);
memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
memset(s->is_pcm, 0, (s->sps->min_pu_width + 1) * (s->sps->min_pu_height + 1));
memset(s->tab_slice_address, -1, pic_size_in_ctb * sizeof(*s->tab_slice_address));
s->is_decoded = 0;
s->first_nal_type = s->nal_unit_type;
if (s->pps->tiles_enabled_flag)
lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
ret = ff_hevc_set_new_ref(s, &s->frame, s->poc);
if (ret < 0)
goto fail;
ret = ff_hevc_frame_rps(s);
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
goto fail;
}
s->ref->frame->key_frame = IS_IRAP(s);
ret = set_side_data(s);
if (ret < 0)
goto fail;
s->frame->pict_type = 3 - s->sh.slice_type;
if (!IS_IRAP(s))
ff_hevc_bump_frame(s);
av_frame_unref(s->output_frame);
ret = ff_hevc_output_frame(s, s->output_frame, 0);
if (ret < 0)
goto fail;
if (!s->avctx->hwaccel)
ff_thread_finish_setup(s->avctx);
return 0;
fail:
if (s->ref)
ff_hevc_unref_frame(s, s->ref, ~0);
s->ref = NULL;
return ret;
}
static int decode_nal_unit(HEVCContext *s, const HEVCNAL *nal)
{
HEVCLocalContext *lc = s->HEVClc;
GetBitContext *gb = &lc->gb;
int ctb_addr_ts, ret;
ret = init_get_bits8(gb, nal->data, nal->size);
if (ret < 0)
return ret;
ret = hls_nal_unit(s);
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
s->nal_unit_type);
goto fail;
} else if (!ret)
return 0;
switch (s->nal_unit_type) {
case NAL_VPS:
ret = ff_hevc_decode_nal_vps(s);
if (ret < 0)
goto fail;
break;
case NAL_SPS:
ret = ff_hevc_decode_nal_sps(s);
if (ret < 0)
goto fail;
break;
case NAL_PPS:
ret = ff_hevc_decode_nal_pps(s);
if (ret < 0)
goto fail;
break;
case NAL_SEI_PREFIX:
case NAL_SEI_SUFFIX:
ret = ff_hevc_decode_nal_sei(s);
if (ret < 0)
goto fail;
break;
case NAL_TRAIL_R:
case NAL_TRAIL_N:
case NAL_TSA_N:
case NAL_TSA_R:
case NAL_STSA_N:
case NAL_STSA_R:
case NAL_BLA_W_LP:
case NAL_BLA_W_RADL:
case NAL_BLA_N_LP:
case NAL_IDR_W_RADL:
case NAL_IDR_N_LP:
case NAL_CRA_NUT:
case NAL_RADL_N:
case NAL_RADL_R:
case NAL_RASL_N:
case NAL_RASL_R:
ret = hls_slice_header(s);
if (ret < 0)
return ret;
if (s->max_ra == INT_MAX) {
if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
s->max_ra = s->poc;
} else {
if (IS_IDR(s))
s->max_ra = INT_MIN;
}
}
if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
s->poc <= s->max_ra) {
s->is_decoded = 0;
break;
} else {
if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
s->max_ra = INT_MIN;
}
if (s->sh.first_slice_in_pic_flag) {
ret = hevc_frame_start(s);
if (ret < 0)
return ret;
} else if (!s->ref) {
av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
goto fail;
}
if (s->nal_unit_type != s->first_nal_type) {
av_log(s->avctx, AV_LOG_ERROR,
"Non-matching NAL types of the VCL NALUs: %d %d\n",
s->first_nal_type, s->nal_unit_type);
return AVERROR_INVALIDDATA;
}
if (!s->sh.dependent_slice_segment_flag &&
s->sh.slice_type != I_SLICE) {
ret = ff_hevc_slice_rpl(s);
if (ret < 0) {
av_log(s->avctx, AV_LOG_WARNING,
"Error constructing the reference lists for the current slice.\n");
goto fail;
}
}
if (s->sh.first_slice_in_pic_flag && s->avctx->hwaccel) {
ret = s->avctx->hwaccel->start_frame(s->avctx, NULL, 0);
if (ret < 0)
goto fail;
}
if (s->avctx->hwaccel) {
ret = s->avctx->hwaccel->decode_slice(s->avctx, nal->raw_data, nal->raw_size);
if (ret < 0)
goto fail;
} else {
if (s->threads_number > 1 && s->sh.num_entry_point_offsets > 0)
ctb_addr_ts = hls_slice_data_wpp(s, nal->data, nal->size);
else
ctb_addr_ts = hls_slice_data(s);
if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
s->is_decoded = 1;
}
if (ctb_addr_ts < 0) {
ret = ctb_addr_ts;
goto fail;
}
}
break;
case NAL_EOS_NUT:
case NAL_EOB_NUT:
s->seq_decode = (s->seq_decode + 1) & 0xff;
s->max_ra = INT_MAX;
break;
case NAL_AUD:
case NAL_FD_NUT:
break;
default:
av_log(s->avctx, AV_LOG_INFO,
"Skipping NAL unit %d\n", s->nal_unit_type);
}
return 0;
fail:
if (s->avctx->err_recognition & AV_EF_EXPLODE)
return ret;
return 0;
}
/* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
* between these functions would be nice. */
int ff_hevc_extract_rbsp(HEVCContext *s, const uint8_t *src, int length,
HEVCNAL *nal)
{
int i, si, di;
uint8_t *dst;
s->skipped_bytes = 0;
#define STARTCODE_TEST \
if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
if (src[i + 2] != 3) { \
/* startcode, so we must be past the end */ \
length = i; \
} \
break; \
}
#if HAVE_FAST_UNALIGNED
#define FIND_FIRST_ZERO \
if (i > 0 && !src[i]) \
i--; \
while (src[i]) \
i++
#if HAVE_FAST_64BIT
for (i = 0; i + 1 < length; i += 9) {
if (!((~AV_RN64A(src + i) &
(AV_RN64A(src + i) - 0x0100010001000101ULL)) &
0x8000800080008080ULL))
continue;
FIND_FIRST_ZERO;
STARTCODE_TEST;
i -= 7;
}
#else
for (i = 0; i + 1 < length; i += 5) {
if (!((~AV_RN32A(src + i) &
(AV_RN32A(src + i) - 0x01000101U)) &
0x80008080U))
continue;
FIND_FIRST_ZERO;
STARTCODE_TEST;
i -= 3;
}
#endif /* HAVE_FAST_64BIT */
#else
for (i = 0; i + 1 < length; i += 2) {
if (src[i])
continue;
if (i > 0 && src[i - 1] == 0)
i--;
STARTCODE_TEST;
}
#endif /* HAVE_FAST_UNALIGNED */
if (i >= length - 1) { // no escaped 0
nal->data =
nal->raw_data = src;
nal->size =
nal->raw_size = length;
return length;
}
av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
length + FF_INPUT_BUFFER_PADDING_SIZE);
if (!nal->rbsp_buffer)
return AVERROR(ENOMEM);
dst = nal->rbsp_buffer;
memcpy(dst, src, i);
si = di = i;
while (si + 2 < length) {
// remove escapes (very rare 1:2^22)
if (src[si + 2] > 3) {
dst[di++] = src[si++];
dst[di++] = src[si++];
} else if (src[si] == 0 && src[si + 1] == 0) {
if (src[si + 2] == 3) { // escape
dst[di++] = 0;
dst[di++] = 0;
si += 3;
s->skipped_bytes++;
if (s->skipped_bytes_pos_size < s->skipped_bytes) {
s->skipped_bytes_pos_size *= 2;
av_reallocp_array(&s->skipped_bytes_pos,
s->skipped_bytes_pos_size,
sizeof(*s->skipped_bytes_pos));
if (!s->skipped_bytes_pos)
return AVERROR(ENOMEM);
}
if (s->skipped_bytes_pos)
s->skipped_bytes_pos[s->skipped_bytes-1] = di - 1;
continue;
} else // next start code
goto nsc;
}
dst[di++] = src[si++];
}
while (si < length)
dst[di++] = src[si++];
nsc:
memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
nal->data = dst;
nal->size = di;
nal->raw_data = src;
nal->raw_size = si;
return si;
}
static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
{
int i, consumed, ret = 0;
s->ref = NULL;
s->last_eos = s->eos;
s->eos = 0;
/* split the input packet into NAL units, so we know the upper bound on the
* number of slices in the frame */
s->nb_nals = 0;
while (length >= 4) {
HEVCNAL *nal;
int extract_length = 0;
if (s->is_nalff) {
int i;
for (i = 0; i < s->nal_length_size; i++)
extract_length = (extract_length << 8) | buf[i];
buf += s->nal_length_size;
length -= s->nal_length_size;
if (extract_length > length) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
ret = AVERROR_INVALIDDATA;
goto fail;
}
} else {
/* search start code */
while (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
++buf;
--length;
if (length < 4) {
av_log(s->avctx, AV_LOG_ERROR, "No start code is found.\n");
ret = AVERROR_INVALIDDATA;
goto fail;
}
}
buf += 3;
length -= 3;
}
if (!s->is_nalff)
extract_length = length;
if (s->nals_allocated < s->nb_nals + 1) {
int new_size = s->nals_allocated + 1;
void *tmp = av_realloc_array(s->nals, new_size, sizeof(*s->nals));
ret = AVERROR(ENOMEM);
if (!tmp) {
goto fail;
}
s->nals = tmp;
memset(s->nals + s->nals_allocated, 0,
(new_size - s->nals_allocated) * sizeof(*s->nals));
tmp = av_realloc_array(s->skipped_bytes_nal, new_size, sizeof(*s->skipped_bytes_nal));
if (!tmp)
goto fail;
s->skipped_bytes_nal = tmp;
tmp = av_realloc_array(s->skipped_bytes_pos_size_nal, new_size, sizeof(*s->skipped_bytes_pos_size_nal));
if (!tmp)
goto fail;
s->skipped_bytes_pos_size_nal = tmp;
tmp = av_realloc_array(s->skipped_bytes_pos_nal, new_size, sizeof(*s->skipped_bytes_pos_nal));
if (!tmp)
goto fail;
s->skipped_bytes_pos_nal = tmp;
s->skipped_bytes_pos_size_nal[s->nals_allocated] = 1024; // initial buffer size
s->skipped_bytes_pos_nal[s->nals_allocated] = av_malloc_array(s->skipped_bytes_pos_size_nal[s->nals_allocated], sizeof(*s->skipped_bytes_pos));
if (!s->skipped_bytes_pos_nal[s->nals_allocated])
goto fail;
s->nals_allocated = new_size;
}
s->skipped_bytes_pos_size = s->skipped_bytes_pos_size_nal[s->nb_nals];
s->skipped_bytes_pos = s->skipped_bytes_pos_nal[s->nb_nals];
nal = &s->nals[s->nb_nals];
consumed = ff_hevc_extract_rbsp(s, buf, extract_length, nal);
s->skipped_bytes_nal[s->nb_nals] = s->skipped_bytes;
s->skipped_bytes_pos_size_nal[s->nb_nals] = s->skipped_bytes_pos_size;
s->skipped_bytes_pos_nal[s->nb_nals++] = s->skipped_bytes_pos;
if (consumed < 0) {
ret = consumed;
goto fail;
}
ret = init_get_bits8(&s->HEVClc->gb, nal->data, nal->size);
if (ret < 0)
goto fail;
hls_nal_unit(s);
if (s->nal_unit_type == NAL_EOB_NUT ||
s->nal_unit_type == NAL_EOS_NUT)
s->eos = 1;
buf += consumed;
length -= consumed;
}
/* parse the NAL units */
for (i = 0; i < s->nb_nals; i++) {
s->skipped_bytes = s->skipped_bytes_nal[i];
s->skipped_bytes_pos = s->skipped_bytes_pos_nal[i];
ret = decode_nal_unit(s, &s->nals[i]);
if (ret < 0) {
av_log(s->avctx, AV_LOG_WARNING,
"Error parsing NAL unit #%d.\n", i);
goto fail;
}
}
fail:
if (s->ref && s->threads_type == FF_THREAD_FRAME)
ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
return ret;
}
static void print_md5(void *log_ctx, int level, uint8_t md5[16])
{
int i;
for (i = 0; i < 16; i++)
av_log(log_ctx, level, "%02"PRIx8, md5[i]);
}
static int verify_md5(HEVCContext *s, AVFrame *frame)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
int pixel_shift;
int i, j;
if (!desc)
return AVERROR(EINVAL);
pixel_shift = desc->comp[0].depth_minus1 > 7;
av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
s->poc);
/* the checksums are LE, so we have to byteswap for >8bpp formats
* on BE arches */
#if HAVE_BIGENDIAN
if (pixel_shift && !s->checksum_buf) {
av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
FFMAX3(frame->linesize[0], frame->linesize[1],
frame->linesize[2]));
if (!s->checksum_buf)
return AVERROR(ENOMEM);
}
#endif
for (i = 0; frame->data[i]; i++) {
int width = s->avctx->coded_width;
int height = s->avctx->coded_height;
int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
uint8_t md5[16];
av_md5_init(s->md5_ctx);
for (j = 0; j < h; j++) {
const uint8_t *src = frame->data[i] + j * frame->linesize[i];
#if HAVE_BIGENDIAN
if (pixel_shift) {
s->bdsp.bswap16_buf((uint16_t *) s->checksum_buf,
(const uint16_t *) src, w);
src = s->checksum_buf;
}
#endif
av_md5_update(s->md5_ctx, src, w << pixel_shift);
}
av_md5_final(s->md5_ctx, md5);
if (!memcmp(md5, s->md5[i], 16)) {
av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
print_md5(s->avctx, AV_LOG_DEBUG, md5);
av_log (s->avctx, AV_LOG_DEBUG, "; ");
} else {
av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
print_md5(s->avctx, AV_LOG_ERROR, md5);
av_log (s->avctx, AV_LOG_ERROR, " != ");
print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
av_log (s->avctx, AV_LOG_ERROR, "\n");
return AVERROR_INVALIDDATA;
}
}
av_log(s->avctx, AV_LOG_DEBUG, "\n");
return 0;
}
static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
AVPacket *avpkt)
{
int ret;
HEVCContext *s = avctx->priv_data;
if (!avpkt->size) {
ret = ff_hevc_output_frame(s, data, 1);
if (ret < 0)
return ret;
*got_output = ret;
return 0;
}
s->ref = NULL;
ret = decode_nal_units(s, avpkt->data, avpkt->size);
if (ret < 0)
return ret;
if (avctx->hwaccel) {
if (s->ref && avctx->hwaccel->end_frame(avctx) < 0)
av_log(avctx, AV_LOG_ERROR,
"hardware accelerator failed to decode picture\n");
} else {
/* verify the SEI checksum */
if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
s->is_md5) {
ret = verify_md5(s, s->ref->frame);
if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
ff_hevc_unref_frame(s, s->ref, ~0);
return ret;
}
}
}
s->is_md5 = 0;
if (s->is_decoded) {
av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
s->is_decoded = 0;
}
if (s->output_frame->buf[0]) {
av_frame_move_ref(data, s->output_frame);
*got_output = 1;
}
return avpkt->size;
}
static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
{
int ret;
ret = ff_thread_ref_frame(&dst->tf, &src->tf);
if (ret < 0)
return ret;
dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
if (!dst->tab_mvf_buf)
goto fail;
dst->tab_mvf = src->tab_mvf;
dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
if (!dst->rpl_tab_buf)
goto fail;
dst->rpl_tab = src->rpl_tab;
dst->rpl_buf = av_buffer_ref(src->rpl_buf);
if (!dst->rpl_buf)
goto fail;
dst->poc = src->poc;
dst->ctb_count = src->ctb_count;
dst->window = src->window;
dst->flags = src->flags;
dst->sequence = src->sequence;
if (src->hwaccel_picture_private) {
dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
if (!dst->hwaccel_priv_buf)
goto fail;
dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
}
return 0;
fail:
ff_hevc_unref_frame(s, dst, ~0);
return AVERROR(ENOMEM);
}
static av_cold int hevc_decode_free(AVCodecContext *avctx)
{
HEVCContext *s = avctx->priv_data;
int i;
pic_arrays_free(s);
av_freep(&s->md5_ctx);
for(i=0; i < s->nals_allocated; i++) {
av_freep(&s->skipped_bytes_pos_nal[i]);
}
av_freep(&s->skipped_bytes_pos_size_nal);
av_freep(&s->skipped_bytes_nal);
av_freep(&s->skipped_bytes_pos_nal);
av_freep(&s->cabac_state);
for (i = 0; i < 3; i++) {
av_freep(&s->sao_pixel_buffer_h[i]);
av_freep(&s->sao_pixel_buffer_v[i]);
}
av_frame_free(&s->output_frame);
for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
ff_hevc_unref_frame(s, &s->DPB[i], ~0);
av_frame_free(&s->DPB[i].frame);
}
for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
av_buffer_unref(&s->vps_list[i]);
for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
av_buffer_unref(&s->sps_list[i]);
for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
av_buffer_unref(&s->pps_list[i]);
s->sps = NULL;
s->pps = NULL;
s->vps = NULL;
av_freep(&s->sh.entry_point_offset);
av_freep(&s->sh.offset);
av_freep(&s->sh.size);
for (i = 1; i < s->threads_number; i++) {
HEVCLocalContext *lc = s->HEVClcList[i];
if (lc) {
av_freep(&s->HEVClcList[i]);
av_freep(&s->sList[i]);
}
}
if (s->HEVClc == s->HEVClcList[0])
s->HEVClc = NULL;
av_freep(&s->HEVClcList[0]);
for (i = 0; i < s->nals_allocated; i++)
av_freep(&s->nals[i].rbsp_buffer);
av_freep(&s->nals);
s->nals_allocated = 0;
return 0;
}
static av_cold int hevc_init_context(AVCodecContext *avctx)
{
HEVCContext *s = avctx->priv_data;
int i;
s->avctx = avctx;
s->HEVClc = av_mallocz(sizeof(HEVCLocalContext));
if (!s->HEVClc)
goto fail;
s->HEVClcList[0] = s->HEVClc;
s->sList[0] = s;
s->cabac_state = av_malloc(HEVC_CONTEXTS);
if (!s->cabac_state)
goto fail;
s->output_frame = av_frame_alloc();
if (!s->output_frame)
goto fail;
for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
s->DPB[i].frame = av_frame_alloc();
if (!s->DPB[i].frame)
goto fail;
s->DPB[i].tf.f = s->DPB[i].frame;
}
s->max_ra = INT_MAX;
s->md5_ctx = av_md5_alloc();
if (!s->md5_ctx)
goto fail;
ff_bswapdsp_init(&s->bdsp);
s->context_initialized = 1;
s->eos = 0;
return 0;
fail:
hevc_decode_free(avctx);
return AVERROR(ENOMEM);
}
static int hevc_update_thread_context(AVCodecContext *dst,
const AVCodecContext *src)
{
HEVCContext *s = dst->priv_data;
HEVCContext *s0 = src->priv_data;
int i, ret;
if (!s->context_initialized) {
ret = hevc_init_context(dst);
if (ret < 0)
return ret;
}
for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
ff_hevc_unref_frame(s, &s->DPB[i], ~0);
if (s0->DPB[i].frame->buf[0]) {
ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
if (ret < 0)
return ret;
}
}
if (s->sps != s0->sps)
s->sps = NULL;
for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++) {
av_buffer_unref(&s->vps_list[i]);
if (s0->vps_list[i]) {
s->vps_list[i] = av_buffer_ref(s0->vps_list[i]);
if (!s->vps_list[i])
return AVERROR(ENOMEM);
}
}
for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
av_buffer_unref(&s->sps_list[i]);
if (s0->sps_list[i]) {
s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
if (!s->sps_list[i])
return AVERROR(ENOMEM);
}
}
for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
av_buffer_unref(&s->pps_list[i]);
if (s0->pps_list[i]) {
s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
if (!s->pps_list[i])
return AVERROR(ENOMEM);
}
}
if (s->sps != s0->sps)
if ((ret = set_sps(s, s0->sps, src->pix_fmt)) < 0)
return ret;
s->seq_decode = s0->seq_decode;
s->seq_output = s0->seq_output;
s->pocTid0 = s0->pocTid0;
s->max_ra = s0->max_ra;
s->eos = s0->eos;
s->is_nalff = s0->is_nalff;
s->nal_length_size = s0->nal_length_size;
s->threads_number = s0->threads_number;
s->threads_type = s0->threads_type;
if (s0->eos) {
s->seq_decode = (s->seq_decode + 1) & 0xff;
s->max_ra = INT_MAX;
}
return 0;
}
static int hevc_decode_extradata(HEVCContext *s)
{
AVCodecContext *avctx = s->avctx;
GetByteContext gb;
int ret, i;
bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
if (avctx->extradata_size > 3 &&
(avctx->extradata[0] || avctx->extradata[1] ||
avctx->extradata[2] > 1)) {
/* It seems the extradata is encoded as hvcC format.
* Temporarily, we support configurationVersion==0 until 14496-15 3rd
* is finalized. When finalized, configurationVersion will be 1 and we
* can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
int i, j, num_arrays, nal_len_size;
s->is_nalff = 1;
bytestream2_skip(&gb, 21);
nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
num_arrays = bytestream2_get_byte(&gb);
/* nal units in the hvcC always have length coded with 2 bytes,
* so put a fake nal_length_size = 2 while parsing them */
s->nal_length_size = 2;
/* Decode nal units from hvcC. */
for (i = 0; i < num_arrays; i++) {
int type = bytestream2_get_byte(&gb) & 0x3f;
int cnt = bytestream2_get_be16(&gb);
for (j = 0; j < cnt; j++) {
// +2 for the nal size field
int nalsize = bytestream2_peek_be16(&gb) + 2;
if (bytestream2_get_bytes_left(&gb) < nalsize) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid NAL unit size in extradata.\n");
return AVERROR_INVALIDDATA;
}
ret = decode_nal_units(s, gb.buffer, nalsize);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR,
"Decoding nal unit %d %d from hvcC failed\n",
type, i);
return ret;
}
bytestream2_skip(&gb, nalsize);
}
}
/* Now store right nal length size, that will be used to parse
* all other nals */
s->nal_length_size = nal_len_size;
} else {
s->is_nalff = 0;
ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
if (ret < 0)
return ret;
}
/* export stream parameters from the first SPS */
for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
if (s->sps_list[i]) {
const HEVCSPS *sps = (const HEVCSPS*)s->sps_list[i]->data;
export_stream_params(s->avctx, s, sps);
break;
}
}
return 0;
}
static av_cold int hevc_decode_init(AVCodecContext *avctx)
{
HEVCContext *s = avctx->priv_data;
int ret;
ff_init_cabac_states();
avctx->internal->allocate_progress = 1;
ret = hevc_init_context(avctx);
if (ret < 0)
return ret;
s->enable_parallel_tiles = 0;
s->picture_struct = 0;
if(avctx->active_thread_type & FF_THREAD_SLICE)
s->threads_number = avctx->thread_count;
else
s->threads_number = 1;
if (avctx->extradata_size > 0 && avctx->extradata) {
ret = hevc_decode_extradata(s);
if (ret < 0) {
hevc_decode_free(avctx);
return ret;
}
}
if((avctx->active_thread_type & FF_THREAD_FRAME) && avctx->thread_count > 1)
s->threads_type = FF_THREAD_FRAME;
else
s->threads_type = FF_THREAD_SLICE;
return 0;
}
static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
{
HEVCContext *s = avctx->priv_data;
int ret;
memset(s, 0, sizeof(*s));
ret = hevc_init_context(avctx);
if (ret < 0)
return ret;
return 0;
}
static void hevc_decode_flush(AVCodecContext *avctx)
{
HEVCContext *s = avctx->priv_data;
ff_hevc_flush_dpb(s);
s->max_ra = INT_MAX;
}
#define OFFSET(x) offsetof(HEVCContext, x)
#define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
static const AVProfile profiles[] = {
{ FF_PROFILE_HEVC_MAIN, "Main" },
{ FF_PROFILE_HEVC_MAIN_10, "Main 10" },
{ FF_PROFILE_HEVC_MAIN_STILL_PICTURE, "Main Still Picture" },
{ FF_PROFILE_HEVC_REXT, "Rext" },
{ FF_PROFILE_UNKNOWN },
};
static const AVOption options[] = {
{ "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
{ "strict-displaywin", "stricly apply default display window size", OFFSET(apply_defdispwin),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
{ NULL },
};
static const AVClass hevc_decoder_class = {
.class_name = "HEVC decoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_hevc_decoder = {
.name = "hevc",
.long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_HEVC,
.priv_data_size = sizeof(HEVCContext),
.priv_class = &hevc_decoder_class,
.init = hevc_decode_init,
.close = hevc_decode_free,
.decode = hevc_decode_frame,
.flush = hevc_decode_flush,
.update_thread_context = hevc_update_thread_context,
.init_thread_copy = hevc_init_thread_copy,
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
.profiles = NULL_IF_CONFIG_SMALL(profiles),
};
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