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FFmpeg/libavcodec/h2645_sei.c
Niklas Haas 2e24c12aa1 avcodec/h2645_sei: decode AFGS1 T.35 SEI 
I restricted this SEI to HEVC for now, until I see a H.264 sample.
2024-03-23 18:55:21 +01:00

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/*
* Common H.264 and HEVC Supplementary Enhancement Information messages
*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
* Copyright (C) 2012 - 2013 Guillaume Martres
* Copyright (C) 2012 - 2013 Gildas Cocherel
* Copyright (C) 2013 Vittorio Giovara
*
* 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 "config_components.h"
#include "libavutil/ambient_viewing_environment.h"
#include "libavutil/display.h"
#include "libavutil/hdr_dynamic_metadata.h"
#include "libavutil/film_grain_params.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/pixdesc.h"
#include "libavutil/stereo3d.h"
#include "atsc_a53.h"
#include "avcodec.h"
#include "decode.h"
#include "dynamic_hdr_vivid.h"
#include "get_bits.h"
#include "golomb.h"
#include "h2645_sei.h"
#include "itut35.h"
#define IS_H264(codec_id) (CONFIG_H264_SEI && CONFIG_HEVC_SEI ? codec_id == AV_CODEC_ID_H264 : CONFIG_H264_SEI)
#define IS_HEVC(codec_id) (CONFIG_H264_SEI && CONFIG_HEVC_SEI ? codec_id == AV_CODEC_ID_HEVC : CONFIG_HEVC_SEI)
#if CONFIG_HEVC_SEI
static int decode_registered_user_data_dynamic_hdr_plus(HEVCSEIDynamicHDRPlus *s,
GetByteContext *gb)
{
size_t meta_size;
int err;
AVDynamicHDRPlus *metadata = av_dynamic_hdr_plus_alloc(&meta_size);
if (!metadata)
return AVERROR(ENOMEM);
err = av_dynamic_hdr_plus_from_t35(metadata, gb->buffer,
bytestream2_get_bytes_left(gb));
if (err < 0) {
av_free(metadata);
return err;
}
av_buffer_unref(&s->info);
s->info = av_buffer_create((uint8_t *)metadata, meta_size, NULL, NULL, 0);
if (!s->info) {
av_free(metadata);
return AVERROR(ENOMEM);
}
return 0;
}
static int decode_registered_user_data_dynamic_hdr_vivid(HEVCSEIDynamicHDRVivid *s,
GetByteContext *gb)
{
size_t meta_size;
int err;
AVDynamicHDRVivid *metadata = av_dynamic_hdr_vivid_alloc(&meta_size);
if (!metadata)
return AVERROR(ENOMEM);
err = ff_parse_itu_t_t35_to_dynamic_hdr_vivid(metadata,
gb->buffer, bytestream2_get_bytes_left(gb));
if (err < 0) {
av_free(metadata);
return err;
}
av_buffer_unref(&s->info);
s->info = av_buffer_create((uint8_t *)metadata, meta_size, NULL, NULL, 0);
if (!s->info) {
av_free(metadata);
return AVERROR(ENOMEM);
}
return 0;
}
#endif
static int decode_registered_user_data_afd(H2645SEIAFD *h, GetByteContext *gb)
{
int flag;
if (bytestream2_get_bytes_left(gb) <= 0)
return AVERROR_INVALIDDATA;
flag = !!(bytestream2_get_byteu(gb) & 0x40); // active_format_flag
if (flag) {
if (bytestream2_get_bytes_left(gb) <= 0)
return AVERROR_INVALIDDATA;
h->active_format_description = bytestream2_get_byteu(gb) & 0xF;
h->present = 1;
}
return 0;
}
static int decode_registered_user_data_closed_caption(H2645SEIA53Caption *h,
GetByteContext *gb)
{
return ff_parse_a53_cc(&h->buf_ref, gb->buffer,
bytestream2_get_bytes_left(gb));
}
static int decode_registered_user_data(H2645SEI *h, GetByteContext *gb,
enum AVCodecID codec_id, void *logctx)
{
int country_code, provider_code;
if (bytestream2_get_bytes_left(gb) < 3)
return AVERROR_INVALIDDATA;
country_code = bytestream2_get_byteu(gb); // itu_t_t35_country_code
if (country_code == 0xFF) {
if (bytestream2_get_bytes_left(gb) < 3)
return AVERROR_INVALIDDATA;
bytestream2_skipu(gb, 1); // itu_t_t35_country_code_extension_byte
}
if (country_code != ITU_T_T35_COUNTRY_CODE_US &&
country_code != ITU_T_T35_COUNTRY_CODE_CN) {
av_log(logctx, AV_LOG_VERBOSE,
"Unsupported User Data Registered ITU-T T35 SEI message (country_code = %d)\n",
country_code);
return 0;
}
/* itu_t_t35_payload_byte follows */
provider_code = bytestream2_get_be16u(gb);
switch (provider_code) {
case ITU_T_T35_PROVIDER_CODE_ATSC: {
uint32_t user_identifier;
if (bytestream2_get_bytes_left(gb) < 4)
return AVERROR_INVALIDDATA;
user_identifier = bytestream2_get_be32u(gb);
switch (user_identifier) {
case MKBETAG('D', 'T', 'G', '1'): // afd_data
return decode_registered_user_data_afd(&h->afd, gb);
case MKBETAG('G', 'A', '9', '4'): // closed captions
return decode_registered_user_data_closed_caption(&h->a53_caption, gb);
default:
av_log(logctx, AV_LOG_VERBOSE,
"Unsupported User Data Registered ITU-T T35 SEI message (atsc user_identifier = 0x%04x)\n",
user_identifier);
break;
}
break;
}
#if CONFIG_HEVC_SEI
case ITU_T_T35_PROVIDER_CODE_CUVA: {
const uint16_t cuva_provider_oriented_code = 0x0005;
uint16_t provider_oriented_code;
if (!IS_HEVC(codec_id))
goto unsupported_provider_code;
if (bytestream2_get_bytes_left(gb) < 2)
return AVERROR_INVALIDDATA;
provider_oriented_code = bytestream2_get_be16u(gb);
if (provider_oriented_code == cuva_provider_oriented_code) {
return decode_registered_user_data_dynamic_hdr_vivid(&h->dynamic_hdr_vivid, gb);
}
break;
}
case ITU_T_T35_PROVIDER_CODE_SMTPE: {
// A/341 Amendment - 2094-40
const uint16_t smpte2094_40_provider_oriented_code = 0x0001;
const uint8_t smpte2094_40_application_identifier = 0x04;
uint16_t provider_oriented_code;
uint8_t application_identifier;
if (!IS_HEVC(codec_id))
goto unsupported_provider_code;
if (bytestream2_get_bytes_left(gb) < 3)
return AVERROR_INVALIDDATA;
provider_oriented_code = bytestream2_get_be16u(gb);
application_identifier = bytestream2_get_byteu(gb);
if (provider_oriented_code == smpte2094_40_provider_oriented_code &&
application_identifier == smpte2094_40_application_identifier) {
return decode_registered_user_data_dynamic_hdr_plus(&h->dynamic_hdr_plus, gb);
}
break;
}
case 0x5890: { // aom_provider_code
const uint16_t aom_grain_provider_oriented_code = 0x0001;
uint16_t provider_oriented_code;
if (!IS_HEVC(codec_id))
goto unsupported_provider_code;
if (bytestream2_get_bytes_left(gb) < 2)
return AVERROR_INVALIDDATA;
provider_oriented_code = bytestream2_get_byteu(gb);
if (provider_oriented_code == aom_grain_provider_oriented_code) {
return ff_aom_parse_film_grain_sets(&h->aom_film_grain,
gb->buffer,
bytestream2_get_bytes_left(gb));
}
break;
}
unsupported_provider_code:
#endif
default:
av_log(logctx, AV_LOG_VERBOSE,
"Unsupported User Data Registered ITU-T T35 SEI message (provider_code = %d)\n",
provider_code);
break;
}
return 0;
}
static int decode_unregistered_user_data(H2645SEIUnregistered *h,
GetByteContext *gb,
enum AVCodecID codec_id)
{
uint8_t *user_data;
int size = bytestream2_get_bytes_left(gb);
AVBufferRef *buf_ref, **tmp;
if (size < 16 || size >= INT_MAX - 1)
return AVERROR_INVALIDDATA;
tmp = av_realloc_array(h->buf_ref, h->nb_buf_ref + 1, sizeof(*h->buf_ref));
if (!tmp)
return AVERROR(ENOMEM);
h->buf_ref = tmp;
buf_ref = av_buffer_alloc(size + 1);
if (!buf_ref)
return AVERROR(ENOMEM);
user_data = buf_ref->data;
bytestream2_get_bufferu(gb, user_data, size);
user_data[size] = 0;
buf_ref->size = size;
h->buf_ref[h->nb_buf_ref++] = buf_ref;
if (IS_H264(codec_id)) {
int e, build;
e = sscanf(user_data + 16, "x264 - core %d", &build);
if (e == 1 && build > 0)
h->x264_build = build;
if (e == 1 && build == 1 && !strncmp(user_data+16, "x264 - core 0000", 16))
h->x264_build = 67;
}
return 0;
}
static int decode_display_orientation(H2645SEIDisplayOrientation *h,
GetBitContext *gb)
{
h->present = !get_bits1(gb); // display_orientation_cancel_flag
if (h->present) {
h->hflip = get_bits1(gb); // hor_flip
h->vflip = get_bits1(gb); // ver_flip
h->anticlockwise_rotation = get_bits(gb, 16);
// This is followed by display_orientation_repetition_period
// and display_orientation_extension_flag for H.264
// and by display_orientation_persistence_flag for HEVC.
}
return 0;
}
static int decode_frame_packing_arrangement(H2645SEIFramePacking *h,
GetBitContext *gb,
enum AVCodecID codec_id)
{
h->arrangement_id = get_ue_golomb_long(gb);
h->arrangement_cancel_flag = get_bits1(gb);
h->present = !h->arrangement_cancel_flag;
if (h->present) {
h->arrangement_type = get_bits(gb, 7);
h->quincunx_sampling_flag = get_bits1(gb);
h->content_interpretation_type = get_bits(gb, 6);
// spatial_flipping_flag, frame0_flipped_flag, field_views_flag
skip_bits(gb, 3);
h->current_frame_is_frame0_flag = get_bits1(gb);
// frame0_self_contained_flag, frame1_self_contained_flag
skip_bits(gb, 2);
if (!h->quincunx_sampling_flag && h->arrangement_type != 5)
skip_bits(gb, 16); // frame[01]_grid_position_[xy]
skip_bits(gb, 8); // frame_packing_arrangement_reserved_byte
if (IS_H264(codec_id))
h->arrangement_repetition_period = get_ue_golomb_long(gb);
else
skip_bits1(gb); // frame_packing_arrangement_persistence_flag
}
// H.264: frame_packing_arrangement_extension_flag,
// HEVC: upsampled_aspect_ratio_flag
skip_bits1(gb);
return 0;
}
static int decode_alternative_transfer(H2645SEIAlternativeTransfer *s,
GetByteContext *gb)
{
if (bytestream2_get_bytes_left(gb) < 1)
return AVERROR_INVALIDDATA;
s->present = 1;
s->preferred_transfer_characteristics = bytestream2_get_byteu(gb);
return 0;
}
static int decode_ambient_viewing_environment(H2645SEIAmbientViewingEnvironment *s,
GetByteContext *gb)
{
static const uint16_t max_ambient_light_value = 50000;
if (bytestream2_get_bytes_left(gb) < 8)
return AVERROR_INVALIDDATA;
s->ambient_illuminance = bytestream2_get_be32u(gb);
if (!s->ambient_illuminance)
return AVERROR_INVALIDDATA;
s->ambient_light_x = bytestream2_get_be16u(gb);
if (s->ambient_light_x > max_ambient_light_value)
return AVERROR_INVALIDDATA;
s->ambient_light_y = bytestream2_get_be16u(gb);
if (s->ambient_light_y > max_ambient_light_value)
return AVERROR_INVALIDDATA;
s->present = 1;
return 0;
}
static int decode_film_grain_characteristics(H2645SEIFilmGrainCharacteristics *h,
enum AVCodecID codec_id, GetBitContext *gb)
{
h->present = !get_bits1(gb); // film_grain_characteristics_cancel_flag
if (h->present) {
memset(h, 0, sizeof(*h));
h->model_id = get_bits(gb, 2);
h->separate_colour_description_present_flag = get_bits1(gb);
if (h->separate_colour_description_present_flag) {
h->bit_depth_luma = get_bits(gb, 3) + 8;
h->bit_depth_chroma = get_bits(gb, 3) + 8;
h->full_range = get_bits1(gb);
h->color_primaries = get_bits(gb, 8);
h->transfer_characteristics = get_bits(gb, 8);
h->matrix_coeffs = get_bits(gb, 8);
}
h->blending_mode_id = get_bits(gb, 2);
h->log2_scale_factor = get_bits(gb, 4);
for (int c = 0; c < 3; c++)
h->comp_model_present_flag[c] = get_bits1(gb);
for (int c = 0; c < 3; c++) {
if (h->comp_model_present_flag[c]) {
h->num_intensity_intervals[c] = get_bits(gb, 8) + 1;
h->num_model_values[c] = get_bits(gb, 3) + 1;
if (h->num_model_values[c] > 6)
return AVERROR_INVALIDDATA;
for (int i = 0; i < h->num_intensity_intervals[c]; i++) {
h->intensity_interval_lower_bound[c][i] = get_bits(gb, 8);
h->intensity_interval_upper_bound[c][i] = get_bits(gb, 8);
for (int j = 0; j < h->num_model_values[c]; j++)
h->comp_model_value[c][i][j] = get_se_golomb_long(gb);
}
}
}
if (IS_HEVC(codec_id))
h->persistence_flag = get_bits1(gb);
else
h->repetition_period = get_ue_golomb_long(gb);
h->present = 1;
}
return 0;
}
static int decode_nal_sei_mastering_display_info(H2645SEIMasteringDisplay *s,
GetByteContext *gb)
{
int i;
if (bytestream2_get_bytes_left(gb) < 24)
return AVERROR_INVALIDDATA;
// Mastering primaries
for (i = 0; i < 3; i++) {
s->display_primaries[i][0] = bytestream2_get_be16u(gb);
s->display_primaries[i][1] = bytestream2_get_be16u(gb);
}
// White point (x, y)
s->white_point[0] = bytestream2_get_be16u(gb);
s->white_point[1] = bytestream2_get_be16u(gb);
// Max and min luminance of mastering display
s->max_luminance = bytestream2_get_be32u(gb);
s->min_luminance = bytestream2_get_be32u(gb);
// As this SEI message comes before the first frame that references it,
// initialize the flag to 2 and decrement on IRAP access unit so it
// persists for the coded video sequence (e.g., between two IRAPs)
s->present = 2;
return 0;
}
static int decode_nal_sei_content_light_info(H2645SEIContentLight *s,
GetByteContext *gb)
{
if (bytestream2_get_bytes_left(gb) < 4)
return AVERROR_INVALIDDATA;
// Max and average light levels
s->max_content_light_level = bytestream2_get_be16u(gb);
s->max_pic_average_light_level = bytestream2_get_be16u(gb);
// As this SEI message comes before the first frame that references it,
// initialize the flag to 2 and decrement on IRAP access unit so it
// persists for the coded video sequence (e.g., between two IRAPs)
s->present = 2;
return 0;
}
int ff_h2645_sei_message_decode(H2645SEI *h, enum SEIType type,
enum AVCodecID codec_id, GetBitContext *gb,
GetByteContext *gbyte, void *logctx)
{
switch (type) {
case SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35:
return decode_registered_user_data(h, gbyte, codec_id, logctx);
case SEI_TYPE_USER_DATA_UNREGISTERED:
return decode_unregistered_user_data(&h->unregistered, gbyte, codec_id);
case SEI_TYPE_DISPLAY_ORIENTATION:
return decode_display_orientation(&h->display_orientation, gb);
case SEI_TYPE_FILM_GRAIN_CHARACTERISTICS:
return decode_film_grain_characteristics(&h->film_grain_characteristics, codec_id, gb);
case SEI_TYPE_FRAME_PACKING_ARRANGEMENT:
return decode_frame_packing_arrangement(&h->frame_packing, gb, codec_id);
case SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS:
return decode_alternative_transfer(&h->alternative_transfer, gbyte);
case SEI_TYPE_AMBIENT_VIEWING_ENVIRONMENT:
return decode_ambient_viewing_environment(&h->ambient_viewing_environment,
gbyte);
case SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME:
return decode_nal_sei_mastering_display_info(&h->mastering_display,
gbyte);
case SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO:
return decode_nal_sei_content_light_info(&h->content_light, gbyte);
default:
return FF_H2645_SEI_MESSAGE_UNHANDLED;
}
}
int ff_h2645_sei_ctx_replace(H2645SEI *dst, const H2645SEI *src)
{
int ret = av_buffer_replace(&dst->a53_caption.buf_ref,
src->a53_caption.buf_ref);
if (ret < 0)
return ret;
for (unsigned i = 0; i < dst->unregistered.nb_buf_ref; i++)
av_buffer_unref(&dst->unregistered.buf_ref[i]);
dst->unregistered.nb_buf_ref = 0;
if (src->unregistered.nb_buf_ref) {
ret = av_reallocp_array(&dst->unregistered.buf_ref,
src->unregistered.nb_buf_ref,
sizeof(*dst->unregistered.buf_ref));
if (ret < 0)
return ret;
for (unsigned i = 0; i < src->unregistered.nb_buf_ref; i++) {
dst->unregistered.buf_ref[i] = av_buffer_ref(src->unregistered.buf_ref[i]);
if (!dst->unregistered.buf_ref[i])
return AVERROR(ENOMEM);
dst->unregistered.nb_buf_ref++;
}
}
return 0;
}
static int is_frame_packing_type_valid(SEIFpaType type, enum AVCodecID codec_id)
{
if (IS_H264(codec_id))
return type <= SEI_FPA_H264_TYPE_2D &&
type >= SEI_FPA_H264_TYPE_CHECKERBOARD;
else
return type <= SEI_FPA_TYPE_INTERLEAVE_TEMPORAL &&
type >= SEI_FPA_TYPE_SIDE_BY_SIDE;
}
int ff_h2645_sei_to_frame(AVFrame *frame, H2645SEI *sei,
enum AVCodecID codec_id,
AVCodecContext *avctx, const H2645VUI *vui,
unsigned bit_depth_luma, unsigned bit_depth_chroma,
int seed)
{
H2645SEIFramePacking *fp = &sei->frame_packing;
int ret;
if (fp->present &&
is_frame_packing_type_valid(fp->arrangement_type, codec_id) &&
fp->content_interpretation_type > 0 &&
fp->content_interpretation_type < 3) {
AVStereo3D *stereo = av_stereo3d_create_side_data(frame);
if (!stereo)
return AVERROR(ENOMEM);
switch (fp->arrangement_type) {
#if CONFIG_H264_SEI
case SEI_FPA_H264_TYPE_CHECKERBOARD:
stereo->type = AV_STEREO3D_CHECKERBOARD;
break;
case SEI_FPA_H264_TYPE_INTERLEAVE_COLUMN:
stereo->type = AV_STEREO3D_COLUMNS;
break;
case SEI_FPA_H264_TYPE_INTERLEAVE_ROW:
stereo->type = AV_STEREO3D_LINES;
break;
#endif
case SEI_FPA_TYPE_SIDE_BY_SIDE:
if (fp->quincunx_sampling_flag)
stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
else
stereo->type = AV_STEREO3D_SIDEBYSIDE;
break;
case SEI_FPA_TYPE_TOP_BOTTOM:
stereo->type = AV_STEREO3D_TOPBOTTOM;
break;
case SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
stereo->type = AV_STEREO3D_FRAMESEQUENCE;
break;
#if CONFIG_H264_SEI
case SEI_FPA_H264_TYPE_2D:
stereo->type = AV_STEREO3D_2D;
break;
#endif
}
if (fp->content_interpretation_type == 2)
stereo->flags = AV_STEREO3D_FLAG_INVERT;
if (fp->arrangement_type == SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
if (fp->current_frame_is_frame0_flag)
stereo->view = AV_STEREO3D_VIEW_LEFT;
else
stereo->view = AV_STEREO3D_VIEW_RIGHT;
}
}
if (sei->display_orientation.present &&
(sei->display_orientation.anticlockwise_rotation ||
sei->display_orientation.hflip ||
sei->display_orientation.vflip)) {
H2645SEIDisplayOrientation *o = &sei->display_orientation;
double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
AVFrameSideData *rotation = av_frame_new_side_data(frame,
AV_FRAME_DATA_DISPLAYMATRIX,
sizeof(int32_t) * 9);
if (!rotation)
return AVERROR(ENOMEM);
/* av_display_rotation_set() expects the angle in the clockwise
* direction, hence the first minus.
* The below code applies the flips after the rotation, yet
* the H.2645 specs require flipping to be applied first.
* Because of R O(phi) = O(-phi) R (where R is flipping around
* an arbitatry axis and O(phi) is the proper rotation by phi)
* we can create display matrices as desired by negating
* the degree once for every flip applied. */
angle = -angle * (1 - 2 * !!o->hflip) * (1 - 2 * !!o->vflip);
av_display_rotation_set((int32_t *)rotation->data, angle);
av_display_matrix_flip((int32_t *)rotation->data,
o->hflip, o->vflip);
}
if (sei->a53_caption.buf_ref) {
H2645SEIA53Caption *a53 = &sei->a53_caption;
AVFrameSideData *sd = av_frame_new_side_data_from_buf(frame, AV_FRAME_DATA_A53_CC, a53->buf_ref);
if (!sd)
av_buffer_unref(&a53->buf_ref);
a53->buf_ref = NULL;
if (avctx)
avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
}
for (unsigned i = 0; i < sei->unregistered.nb_buf_ref; i++) {
H2645SEIUnregistered *unreg = &sei->unregistered;
if (unreg->buf_ref[i]) {
AVFrameSideData *sd = av_frame_new_side_data_from_buf(frame,
AV_FRAME_DATA_SEI_UNREGISTERED,
unreg->buf_ref[i]);
if (!sd)
av_buffer_unref(&unreg->buf_ref[i]);
unreg->buf_ref[i] = NULL;
}
}
sei->unregistered.nb_buf_ref = 0;
if (sei->afd.present) {
AVFrameSideData *sd = av_frame_new_side_data(frame, AV_FRAME_DATA_AFD,
sizeof(uint8_t));
if (sd) {
*sd->data = sei->afd.active_format_description;
sei->afd.present = 0;
}
}
if (sei->film_grain_characteristics.present) {
H2645SEIFilmGrainCharacteristics *fgc = &sei->film_grain_characteristics;
AVFilmGrainParams *fgp = av_film_grain_params_create_side_data(frame);
AVFilmGrainH274Params *h274;
if (!fgp)
return AVERROR(ENOMEM);
fgp->type = AV_FILM_GRAIN_PARAMS_H274;
h274 = &fgp->codec.h274;
fgp->seed = seed;
fgp->width = frame->width;
fgp->height = frame->height;
/* H.274 mandates film grain be applied to 4:4:4 frames */
fgp->subsampling_x = fgp->subsampling_y = 0;
h274->model_id = fgc->model_id;
if (fgc->separate_colour_description_present_flag) {
fgp->bit_depth_luma = fgc->bit_depth_luma;
fgp->bit_depth_chroma = fgc->bit_depth_chroma;
fgp->color_range = fgc->full_range + 1;
fgp->color_primaries = fgc->color_primaries;
fgp->color_trc = fgc->transfer_characteristics;
fgp->color_space = fgc->matrix_coeffs;
} else {
fgp->bit_depth_luma = bit_depth_luma;
fgp->bit_depth_chroma = bit_depth_chroma;
if (vui->video_signal_type_present_flag)
fgp->color_range = vui->video_full_range_flag + 1;
if (vui->colour_description_present_flag) {
fgp->color_primaries = vui->colour_primaries;
fgp->color_trc = vui->transfer_characteristics;
fgp->color_space = vui->matrix_coeffs;
}
}
h274->blending_mode_id = fgc->blending_mode_id;
h274->log2_scale_factor = fgc->log2_scale_factor;
#if FF_API_H274_FILM_GRAIN_VCS
FF_DISABLE_DEPRECATION_WARNINGS
h274->bit_depth_luma = fgp->bit_depth_luma;
h274->bit_depth_chroma = fgp->bit_depth_chroma;
h274->color_range = fgp->color_range;
h274->color_primaries = fgp->color_primaries;
h274->color_trc = fgp->color_trc;
h274->color_space = fgp->color_space;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
memcpy(&h274->component_model_present, &fgc->comp_model_present_flag,
sizeof(h274->component_model_present));
memcpy(&h274->num_intensity_intervals, &fgc->num_intensity_intervals,
sizeof(h274->num_intensity_intervals));
memcpy(&h274->num_model_values, &fgc->num_model_values,
sizeof(h274->num_model_values));
memcpy(&h274->intensity_interval_lower_bound, &fgc->intensity_interval_lower_bound,
sizeof(h274->intensity_interval_lower_bound));
memcpy(&h274->intensity_interval_upper_bound, &fgc->intensity_interval_upper_bound,
sizeof(h274->intensity_interval_upper_bound));
memcpy(&h274->comp_model_value, &fgc->comp_model_value,
sizeof(h274->comp_model_value));
if (IS_H264(codec_id))
fgc->present = !!fgc->repetition_period;
else
fgc->present = fgc->persistence_flag;
if (avctx)
avctx->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
}
#if CONFIG_HEVC_SEI
ret = ff_aom_attach_film_grain_sets(&sei->aom_film_grain, frame);
if (ret < 0)
return ret;
#endif
if (sei->ambient_viewing_environment.present) {
H2645SEIAmbientViewingEnvironment *env =
&sei->ambient_viewing_environment;
AVAmbientViewingEnvironment *dst_env =
av_ambient_viewing_environment_create_side_data(frame);
if (!dst_env)
return AVERROR(ENOMEM);
dst_env->ambient_illuminance = av_make_q(env->ambient_illuminance, 10000);
dst_env->ambient_light_x = av_make_q(env->ambient_light_x, 50000);
dst_env->ambient_light_y = av_make_q(env->ambient_light_y, 50000);
}
if (sei->mastering_display.present) {
// HEVC uses a g,b,r ordering, which we convert to a more natural r,g,b
const int mapping[3] = {2, 0, 1};
const int chroma_den = 50000;
const int luma_den = 10000;
int i;
AVMasteringDisplayMetadata *metadata;
ret = ff_decode_mastering_display_new(avctx, frame, &metadata);
if (ret < 0)
return ret;
if (metadata) {
for (i = 0; i < 3; i++) {
const int j = mapping[i];
metadata->display_primaries[i][0].num = sei->mastering_display.display_primaries[j][0];
metadata->display_primaries[i][0].den = chroma_den;
metadata->display_primaries[i][1].num = sei->mastering_display.display_primaries[j][1];
metadata->display_primaries[i][1].den = chroma_den;
}
metadata->white_point[0].num = sei->mastering_display.white_point[0];
metadata->white_point[0].den = chroma_den;
metadata->white_point[1].num = sei->mastering_display.white_point[1];
metadata->white_point[1].den = chroma_den;
metadata->max_luminance.num = sei->mastering_display.max_luminance;
metadata->max_luminance.den = luma_den;
metadata->min_luminance.num = sei->mastering_display.min_luminance;
metadata->min_luminance.den = luma_den;
metadata->has_luminance = 1;
metadata->has_primaries = 1;
av_log(avctx, AV_LOG_DEBUG, "Mastering Display Metadata:\n");
av_log(avctx, AV_LOG_DEBUG,
"r(%5.4f,%5.4f) g(%5.4f,%5.4f) b(%5.4f %5.4f) wp(%5.4f, %5.4f)\n",
av_q2d(metadata->display_primaries[0][0]),
av_q2d(metadata->display_primaries[0][1]),
av_q2d(metadata->display_primaries[1][0]),
av_q2d(metadata->display_primaries[1][1]),
av_q2d(metadata->display_primaries[2][0]),
av_q2d(metadata->display_primaries[2][1]),
av_q2d(metadata->white_point[0]), av_q2d(metadata->white_point[1]));
av_log(avctx, AV_LOG_DEBUG,
"min_luminance=%f, max_luminance=%f\n",
av_q2d(metadata->min_luminance), av_q2d(metadata->max_luminance));
}
}
if (sei->content_light.present) {
AVContentLightMetadata *metadata;
ret = ff_decode_content_light_new(avctx, frame, &metadata);
if (ret < 0)
return ret;
if (metadata) {
metadata->MaxCLL = sei->content_light.max_content_light_level;
metadata->MaxFALL = sei->content_light.max_pic_average_light_level;
av_log(avctx, AV_LOG_DEBUG, "Content Light Level Metadata:\n");
av_log(avctx, AV_LOG_DEBUG, "MaxCLL=%d, MaxFALL=%d\n",
metadata->MaxCLL, metadata->MaxFALL);
}
}
return 0;
}
void ff_h2645_sei_reset(H2645SEI *s)
{
av_buffer_unref(&s->a53_caption.buf_ref);
for (unsigned i = 0; i < s->unregistered.nb_buf_ref; i++)
av_buffer_unref(&s->unregistered.buf_ref[i]);
s->unregistered.nb_buf_ref = 0;
av_freep(&s->unregistered.buf_ref);
av_buffer_unref(&s->dynamic_hdr_plus.info);
av_buffer_unref(&s->dynamic_hdr_vivid.info);
s->ambient_viewing_environment.present = 0;
s->mastering_display.present = 0;
s->content_light.present = 0;
s->aom_film_grain.enable = 0;
}
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