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h265_metadata.c File Reference
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "bsf.h"
#include "bsf_internal.h"
#include "cbs.h"
#include "cbs_bsf.h"
#include "cbs_h265.h"
#include "h2645data.h"
#include "h265_profile_level.h"
#include "hevc/hevc.h"

Go to the source code of this file.

Data Structures

struct  H265MetadataContext
 

Macros

#define SET_OR_INFER(field, value, present_flag, infer)
 
#define CROP(border, unit)
 
#define OFFSET(x)   offsetof(H265MetadataContext, x)
 
#define FLAGS   (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
 
#define LEVEL(name, value)
 

Enumerations

enum  { LEVEL_UNSET = -2, LEVEL_AUTO = -1 }
 

Functions

static void h265_metadata_guess_level (AVBSFContext *bsf, const CodedBitstreamFragment *au)
 
static void h265_metadata_update_level (AVBSFContext *bsf, uint8_t *level_idc)
 
static int h265_metadata_update_vps (AVBSFContext *bsf, H265RawVPS *vps)
 
static int h265_metadata_deduce_crop (AVBSFContext *bsf, const H265RawSPS *sps, int *crop_left, int *crop_right, int *crop_top, int *crop_bottom)
 
static int h265_metadata_update_sps (AVBSFContext *bsf, H265RawSPS *sps)
 
static int h265_metadata_update_fragment (AVBSFContext *bsf, AVPacket *pkt, CodedBitstreamFragment *au)
 
static int h265_metadata_init (AVBSFContext *bsf)
 

Variables

static const CBSBSFType h265_metadata_type
 
static const AVOption h265_metadata_options []
 
static const AVClass h265_metadata_class
 
static enum AVCodecID h265_metadata_codec_ids []
 
const FFBitStreamFilter ff_hevc_metadata_bsf
 

Macro Definition Documentation

◆ SET_OR_INFER

#define SET_OR_INFER (   field,
  value,
  present_flag,
  infer 
)
Value:
do { \
if (value >= 0) { \
field = value; \
need_vui = 1; \
} else if (!present_flag) \
field = infer; \
} while (0)

◆ CROP

#define CROP (   border,
  unit 
)
Value:
do { \
if (crop_ ## border >= 0) { \
if (crop_ ## border % unit != 0) { \
av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
"must be a multiple of %d.\n", #border, unit); \
return AVERROR(EINVAL); \
} \
sps->conf_win_ ## border ## _offset = \
crop_ ## border / unit; \
sps->conformance_window_flag = 1; \
} \
} while (0)

◆ OFFSET

#define OFFSET (   x)    offsetof(H265MetadataContext, x)

Definition at line 495 of file h265_metadata.c.

◆ FLAGS

#define FLAGS   (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)

Definition at line 496 of file h265_metadata.c.

◆ LEVEL

#define LEVEL (   name,
  value 
)
Value:
name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, .flags = FLAGS, .unit = "level"

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
LEVEL_UNSET 
LEVEL_AUTO 

Definition at line 32 of file h265_metadata.c.

Function Documentation

◆ h265_metadata_guess_level()

static void h265_metadata_guess_level ( AVBSFContext *  bsf,
const CodedBitstreamFragment *  au 
)
static

Definition at line 71 of file h265_metadata.c.

Referenced by h265_metadata_update_fragment().

◆ h265_metadata_update_level()

static void h265_metadata_update_level ( AVBSFContext *  bsf,
uint8_t *  level_idc 
)
static

Definition at line 140 of file h265_metadata.c.

Referenced by h265_metadata_update_sps(), and h265_metadata_update_vps().

◆ h265_metadata_update_vps()

static int h265_metadata_update_vps ( AVBSFContext *  bsf,
H265RawVPS *  vps 
)
static

Definition at line 163 of file h265_metadata.c.

Referenced by h265_metadata_update_fragment().

◆ h265_metadata_deduce_crop()

static int h265_metadata_deduce_crop ( AVBSFContext *  bsf,
const H265RawSPS *  sps,
int *  crop_left,
int *  crop_right,
int *  crop_top,
int *  crop_bottom 
)
static

Definition at line 193 of file h265_metadata.c.

Referenced by h265_metadata_update_sps().

◆ h265_metadata_update_sps()

static int h265_metadata_update_sps ( AVBSFContext *  bsf,
H265RawSPS *  sps 
)
static

Definition at line 269 of file h265_metadata.c.

Referenced by h265_metadata_update_fragment().

◆ h265_metadata_update_fragment()

static int h265_metadata_update_fragment ( AVBSFContext *  bsf,
AVPacket *  pkt,
CodedBitstreamFragment *  au 
)
static

Definition at line 415 of file h265_metadata.c.

◆ h265_metadata_init()

static int h265_metadata_init ( AVBSFContext *  bsf)
static

Definition at line 490 of file h265_metadata.c.

Variable Documentation

◆ h265_metadata_type

const CBSBSFType h265_metadata_type
static
Initial value:
= {
.codec_id = AV_CODEC_ID_HEVC,
.fragment_name = "access unit",
.unit_name = "NAL unit",
.update_fragment = &h265_metadata_update_fragment,
}

Definition at line 483 of file h265_metadata.c.

Referenced by h265_metadata_init().

◆ h265_metadata_options

const AVOption h265_metadata_options[]
static

Definition at line 497 of file h265_metadata.c.

◆ h265_metadata_class

const AVClass h265_metadata_class
static
Initial value:
= {
.class_name = "h265_metadata_bsf",
.item_name = av_default_item_name,
.option = h265_metadata_options,
.version = LIBAVUTIL_VERSION_INT,
}

Definition at line 580 of file h265_metadata.c.

◆ h265_metadata_codec_ids

enum AVCodecID h265_metadata_codec_ids[]
static
Initial value:
= {
AV_CODEC_ID_HEVC, AV_CODEC_ID_NONE,
}

Definition at line 587 of file h265_metadata.c.

◆ ff_hevc_metadata_bsf

const FFBitStreamFilter ff_hevc_metadata_bsf
Initial value:
= {
.p.name = "hevc_metadata",
.p.codec_ids = h265_metadata_codec_ids,
.p.priv_class = &h265_metadata_class,
.priv_data_size = sizeof(H265MetadataContext),
.init = &h265_metadata_init,
.close = &ff_cbs_bsf_generic_close,
.filter = &ff_cbs_bsf_generic_filter,
}

Definition at line 591 of file h265_metadata.c.

name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
h265_metadata_options
static const AVOption h265_metadata_options[]
Definition: h265_metadata.c:497
infer
#define infer(name, value)
Definition: cbs_av1.c:643
filter
void(* filter)(uint8_t *src, int stride, int qscale)
Definition: h263dsp.c:29
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:209
h265_metadata_update_fragment
static int h265_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt, CodedBitstreamFragment *au)
Definition: h265_metadata.c:415
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:239
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:368
ff_cbs_bsf_generic_close
void ff_cbs_bsf_generic_close(AVBSFContext *bsf)
Close a generic CBS BSF instance.
Definition: cbs_bsf.c:155
H265MetadataContext
Definition: h265_metadata.c:37
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:50
FLAGS
#define FLAGS
Definition: h265_metadata.c:496
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:228
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
h265_metadata_codec_ids
static enum AVCodecID h265_metadata_codec_ids[]
Definition: h265_metadata.c:587
ff_cbs_bsf_generic_filter
int ff_cbs_bsf_generic_filter(AVBSFContext *bsf, AVPacket *pkt)
Filter operation for CBS BSF.
Definition: cbs_bsf.c:61
h265_metadata_init
static int h265_metadata_init(AVBSFContext *bsf)
Definition: h265_metadata.c:490
h265_metadata_class
static const AVClass h265_metadata_class
Definition: h265_metadata.c:580
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition: opt.h:299
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