FFmpeg
Macros | Functions | Variables
cbs_h264.c File Reference
#include "libavutil/mem.h"
#include "libavutil/refstruct.h"
#include "bytestream.h"
#include "cbs.h"
#include "cbs_internal.h"
#include "cbs_h2645.h"
#include "cbs_h264.h"
#include "cbs_sei.h"
#include "get_bits.h"
#include "cbs_h264_syntax_template.c"

Go to the source code of this file.

Macros

#define HEADER(name)
 
#define CHECK(call)
 
#define FUNC_NAME2(rw, codec, name)   cbs_ ## codec ## _ ## rw ## _ ## name
 
#define FUNC_NAME1(rw, codec, name)   FUNC_NAME2(rw, codec, name)
 
#define FUNC_H264(name)   FUNC_NAME1(READWRITE, h264, name)
 
#define FUNC_NAME2_EXPORT(rw, codec, name)   ff_cbs_ ## codec ## _ ## rw ## _ ## name
 
#define FUNC_NAME1_EXPORT(rw, codec, name)   FUNC_NAME2_EXPORT(rw, codec, name)
 
#define FUNC_SEI(name)   FUNC_NAME1_EXPORT(READWRITE, sei, name)
 
#define SEI_FUNC(name, args)
 
#define SUBSCRIPTS(subs, ...)   (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)
 
#define u(width, name, range_min, range_max)   xu(width, name, current->name, range_min, range_max, 0, )
 
#define flag(name)   ub(1, name)
 
#define ue(name, range_min, range_max)   xue(name, current->name, range_min, range_max, 0, )
 
#define i(width, name, range_min, range_max)   xi(width, name, current->name, range_min, range_max, 0, )
 
#define ib(width, name)   xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), 0, )
 
#define se(name, range_min, range_max)   xse(name, current->name, range_min, range_max, 0, )
 
#define us(width, name, range_min, range_max, subs, ...)   xu(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
 
#define ubs(width, name, subs, ...)   xu(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__)
 
#define flags(name, subs, ...)   xu(1, name, current->name, 0, 1, subs, __VA_ARGS__)
 
#define ues(name, range_min, range_max, subs, ...)   xue(name, current->name, range_min, range_max, subs, __VA_ARGS__)
 
#define is(width, name, range_min, range_max, subs, ...)   xi(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
 
#define ibs(width, name, subs, ...)   xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), subs, __VA_ARGS__)
 
#define ses(name, range_min, range_max, subs, ...)   xse(name, current->name, range_min, range_max, subs, __VA_ARGS__)
 
#define fixed(width, name, value)
 
#define READ
 
#define READWRITE   read
 
#define RWContext   GetBitContext
 
#define ub(width, name)
 
#define xu(width, name, var, range_min, range_max, subs, ...)
 
#define xue(name, var, range_min, range_max, subs, ...)
 
#define xi(width, name, var, range_min, range_max, subs, ...)
 
#define xse(name, var, range_min, range_max, subs, ...)
 
#define infer(name, value)
 
#define more_rbsp_data(var)   ((var) = ff_cbs_h2645_read_more_rbsp_data(rw))
 
#define bit_position(rw)   (get_bits_count(rw))
 
#define byte_alignment(rw)   (get_bits_count(rw) % 8)
 
#define allocate(name, size)
 
#define FUNC(name)   FUNC_H264(name)
 
#define WRITE
 
#define READWRITE   write
 
#define RWContext   PutBitContext
 
#define ub(width, name)
 
#define xu(width, name, var, range_min, range_max, subs, ...)
 
#define xue(name, var, range_min, range_max, subs, ...)
 
#define xi(width, name, var, range_min, range_max, subs, ...)
 
#define xse(name, var, range_min, range_max, subs, ...)
 
#define infer(name, value)
 
#define more_rbsp_data(var)   (var)
 
#define bit_position(rw)   (put_bits_count(rw))
 
#define byte_alignment(rw)   (put_bits_count(rw) % 8)
 
#define allocate(name, size)
 
#define FUNC(name)   FUNC_H264(name)
 
#define cbs_h2645_replace_ps(ps_name, ps_var, id_element)
 
#define SEI_MESSAGE_RW(codec, name)
 

Functions

static int cbs_h264_split_fragment (CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int header)
 
 cbs_h2645_replace_ps (SPS, sps, seq_parameter_set_id)
 
static int cbs_h264_write_nal_unit (CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, PutBitContext *pbc)
 
static int cbs_h264_discarded_nal_unit (CodedBitstreamContext *ctx, const CodedBitstreamUnit *unit, enum AVDiscard skip)
 
static av_cold void cbs_h264_flush (CodedBitstreamContext *ctx)
 
static av_cold void cbs_h264_close (CodedBitstreamContext *ctx)
 
static void cbs_h264_free_sei (AVRefStructOpaque unused, void *content)
 

Variables

static CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types []
 
const CodedBitstreamType ff_cbs_type_h264
 
const SEIMessageTypeDescriptor ff_cbs_sei_h264_types []
 

Macro Definition Documentation

◆ HEADER

#define HEADER (   name)
Value:
do { \
ff_cbs_trace_header(ctx, name); \
} while (0)

Definition at line 29 of file cbs_h264.c.

◆ CHECK

#define CHECK (   call)
Value:
do { \
err = (call); \
if (err < 0) \
return err; \
} while (0)

Definition at line 33 of file cbs_h264.c.

◆ FUNC_NAME2

#define FUNC_NAME2 (   rw,
  codec,
  name 
)    cbs_ ## codec ## _ ## rw ## _ ## name

Definition at line 39 of file cbs_h264.c.

◆ FUNC_NAME1

#define FUNC_NAME1 (   rw,
  codec,
  name 
)    FUNC_NAME2(rw, codec, name)

Definition at line 40 of file cbs_h264.c.

◆ FUNC_H264

#define FUNC_H264 (   name)    FUNC_NAME1(READWRITE, h264, name)

Definition at line 41 of file cbs_h264.c.

◆ FUNC_NAME2_EXPORT

#define FUNC_NAME2_EXPORT (   rw,
  codec,
  name 
)    ff_cbs_ ## codec ## _ ## rw ## _ ## name

Definition at line 42 of file cbs_h264.c.

◆ FUNC_NAME1_EXPORT

#define FUNC_NAME1_EXPORT (   rw,
  codec,
  name 
)    FUNC_NAME2_EXPORT(rw, codec, name)

Definition at line 43 of file cbs_h264.c.

◆ FUNC_SEI

#define FUNC_SEI (   name)    FUNC_NAME1_EXPORT(READWRITE, sei, name)

Definition at line 44 of file cbs_h264.c.

◆ SEI_FUNC

#define SEI_FUNC (   name,
  args 
)
Value:
static int FUNC_H264(name) args; \
static int FUNC_H264(name ## _internal)(CodedBitstreamContext *ctx, \
RWContext *rw, void *cur, \
SEIMessageState *state) \
{ \
return FUNC_H264(name)(ctx, rw, cur, state); \
} \
static int FUNC_H264(name) args

Definition at line 46 of file cbs_h264.c.

◆ SUBSCRIPTS

#define SUBSCRIPTS (   subs,
  ... 
)    (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)

Definition at line 56 of file cbs_h264.c.

◆ u

#define u (   width,
  name,
  range_min,
  range_max 
)    xu(width, name, current->name, range_min, range_max, 0, )

Definition at line 58 of file cbs_h264.c.

◆ flag

#define flag (   name)    ub(1, name)

Definition at line 60 of file cbs_h264.c.

◆ ue

#define ue (   name,
  range_min,
  range_max 
)    xue(name, current->name, range_min, range_max, 0, )

Definition at line 61 of file cbs_h264.c.

◆ i

#define i (   width,
  name,
  range_min,
  range_max 
)    xi(width, name, current->name, range_min, range_max, 0, )
Examples
decode_audio.c, decode_video.c, demux_decode.c, encode_audio.c, encode_video.c, extract_mvs.c, ffhash.c, filter_audio.c, hw_decode.c, mux.c, qsv_decode.c, qsv_transcode.c, remux.c, resample_audio.c, scale_video.c, and transcode.c.

Definition at line 63 of file cbs_h264.c.

◆ ib

#define ib (   width,
  name 
)    xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), 0, )

Definition at line 65 of file cbs_h264.c.

◆ se

#define se (   name,
  range_min,
  range_max 
)    xse(name, current->name, range_min, range_max, 0, )

Definition at line 67 of file cbs_h264.c.

◆ us

#define us (   width,
  name,
  range_min,
  range_max,
  subs,
  ... 
)    xu(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)

Definition at line 70 of file cbs_h264.c.

◆ ubs

#define ubs (   width,
  name,
  subs,
  ... 
)    xu(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__)

Definition at line 72 of file cbs_h264.c.

◆ flags

#define flags (   name,
  subs,
  ... 
)    xu(1, name, current->name, 0, 1, subs, __VA_ARGS__)

Definition at line 74 of file cbs_h264.c.

◆ ues

#define ues (   name,
  range_min,
  range_max,
  subs,
  ... 
)    xue(name, current->name, range_min, range_max, subs, __VA_ARGS__)

Definition at line 76 of file cbs_h264.c.

◆ is

#define is (   width,
  name,
  range_min,
  range_max,
  subs,
  ... 
)    xi(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)

Definition at line 78 of file cbs_h264.c.

◆ ibs

#define ibs (   width,
  name,
  subs,
  ... 
)    xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), subs, __VA_ARGS__)

Definition at line 80 of file cbs_h264.c.

◆ ses

#define ses (   name,
  range_min,
  range_max,
  subs,
  ... 
)    xse(name, current->name, range_min, range_max, subs, __VA_ARGS__)

Definition at line 82 of file cbs_h264.c.

◆ fixed

#define fixed (   width,
  name,
  value 
)
Value:
do { \
av_unused uint32_t fixed_value = value; \
xu(width, name, fixed_value, value, value, 0, ); \
} while (0)

Definition at line 85 of file cbs_h264.c.

◆ READ

#define READ

Definition at line 91 of file cbs_h264.c.

◆ READWRITE [1/2]

#define READWRITE   read

Definition at line 170 of file cbs_h264.c.

◆ RWContext [1/2]

#define RWContext   GetBitContext

Definition at line 171 of file cbs_h264.c.

◆ ub [1/2]

#define ub (   width,
  name 
)
Value:
do { \
uint32_t value; \
CHECK(ff_cbs_read_simple_unsigned(ctx, rw, width, #name, \
&value)); \
current->name = value; \
} while (0)

Definition at line 173 of file cbs_h264.c.

◆ xu [1/2]

#define xu (   width,
  name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
uint32_t value; \
CHECK(ff_cbs_read_unsigned(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
&value, range_min, range_max)); \
var = value; \
} while (0)

Definition at line 178 of file cbs_h264.c.

◆ xue [1/2]

#define xue (   name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
uint32_t value; \
CHECK(ff_cbs_read_ue_golomb(ctx, rw, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
&value, range_min, range_max)); \
var = value; \
} while (0)

Definition at line 184 of file cbs_h264.c.

◆ xi [1/2]

#define xi (   width,
  name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
int32_t value; \
CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
&value, range_min, range_max)); \
var = value; \
} while (0)

Definition at line 190 of file cbs_h264.c.

◆ xse [1/2]

#define xse (   name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
int32_t value; \
CHECK(ff_cbs_read_se_golomb(ctx, rw, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
&value, range_min, range_max)); \
var = value; \
} while (0)

Definition at line 196 of file cbs_h264.c.

◆ infer [1/2]

#define infer (   name,
  value 
)
Value:
do { \
current->name = value; \
} while (0)

Definition at line 203 of file cbs_h264.c.

◆ more_rbsp_data [1/2]

#define more_rbsp_data (   var)    ((var) = ff_cbs_h2645_read_more_rbsp_data(rw))

Definition at line 213 of file cbs_h264.c.

◆ bit_position [1/2]

#define bit_position (   rw)    (get_bits_count(rw))

Definition at line 215 of file cbs_h264.c.

◆ byte_alignment [1/2]

#define byte_alignment (   rw)    (get_bits_count(rw) % 8)

Definition at line 216 of file cbs_h264.c.

◆ allocate [1/2]

#define allocate (   name,
  size 
)
Value:
do { \
name ## _ref = av_buffer_allocz(size + \
AV_INPUT_BUFFER_PADDING_SIZE); \
if (!name ## _ref) \
return AVERROR(ENOMEM); \
name = name ## _ref->data; \
} while (0)

Definition at line 218 of file cbs_h264.c.

◆ FUNC [1/2]

#define FUNC (   name)    FUNC_H264(name)

Definition at line 226 of file cbs_h264.c.

◆ WRITE

#define WRITE

Definition at line 169 of file cbs_h264.c.

◆ READWRITE [2/2]

#define READWRITE   write

Definition at line 170 of file cbs_h264.c.

◆ RWContext [2/2]

#define RWContext   PutBitContext

Definition at line 171 of file cbs_h264.c.

◆ ub [2/2]

#define ub (   width,
  name 
)
Value:
do { \
uint32_t value = current->name; \
CHECK(ff_cbs_write_simple_unsigned(ctx, rw, width, #name, \
value)); \
} while (0)

Definition at line 173 of file cbs_h264.c.

◆ xu [2/2]

#define xu (   width,
  name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
uint32_t value = var; \
CHECK(ff_cbs_write_unsigned(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)

Definition at line 178 of file cbs_h264.c.

◆ xue [2/2]

#define xue (   name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
uint32_t value = var; \
CHECK(ff_cbs_write_ue_golomb(ctx, rw, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)

Definition at line 184 of file cbs_h264.c.

◆ xi [2/2]

#define xi (   width,
  name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
int32_t value = var; \
CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)

Definition at line 190 of file cbs_h264.c.

◆ xse [2/2]

#define xse (   name,
  var,
  range_min,
  range_max,
  subs,
  ... 
)
Value:
do { \
int32_t value = var; \
CHECK(ff_cbs_write_se_golomb(ctx, rw, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)

Definition at line 196 of file cbs_h264.c.

◆ infer [2/2]

#define infer (   name,
  value 
)
Value:
do { \
if (current->name != (value)) { \
av_log(ctx->log_ctx, AV_LOG_ERROR, \
"%s does not match inferred value: " \
"%"PRId64", but should be %"PRId64".\n", \
#name, (int64_t)current->name, (int64_t)(value)); \
return AVERROR_INVALIDDATA; \
} \
} while (0)

Definition at line 203 of file cbs_h264.c.

◆ more_rbsp_data [2/2]

#define more_rbsp_data (   var)    (var)

Definition at line 213 of file cbs_h264.c.

◆ bit_position [2/2]

#define bit_position (   rw)    (put_bits_count(rw))

Definition at line 215 of file cbs_h264.c.

◆ byte_alignment [2/2]

#define byte_alignment (   rw)    (put_bits_count(rw) % 8)

Definition at line 216 of file cbs_h264.c.

◆ allocate [2/2]

#define allocate (   name,
  size 
)
Value:
do { \
if (!name) { \
av_log(ctx->log_ctx, AV_LOG_ERROR, "%s must be set " \
"for writing.\n", #name); \
return AVERROR_INVALIDDATA; \
} \
} while (0)

Definition at line 218 of file cbs_h264.c.

◆ FUNC [2/2]

#define FUNC (   name)    FUNC_H264(name)

Definition at line 226 of file cbs_h264.c.

◆ cbs_h2645_replace_ps

#define cbs_h2645_replace_ps (   ps_name,
  ps_var,
  id_element 
)
Value:
static int cbs_h264_replace_ ## ps_var(CodedBitstreamContext *ctx, \
CodedBitstreamUnit *unit) \
{ \
CodedBitstreamH264Context *priv = ctx->priv_data; \
H264Raw ## ps_name *ps_var = unit->content; \
unsigned int id = ps_var->id_element; \
int err = ff_cbs_make_unit_refcounted(ctx, unit); \
if (err < 0) \
return err; \
if (priv->ps_var[id] == priv->active_ ## ps_var) \
priv->active_ ## ps_var = NULL ; \
av_assert0(unit->content_ref); \
av_refstruct_replace(&priv->ps_var[id], unit->content_ref); \
return 0; \
}

Definition at line 361 of file cbs_h264.c.

◆ SEI_MESSAGE_RW

#define SEI_MESSAGE_RW (   codec,
  name 
)
Value:
.read = cbs_ ## codec ## _read_ ## name ## _internal, \
.write = cbs_ ## codec ## _write_ ## name ## _internal

Definition at line 740 of file cbs_h264.c.

Function Documentation

◆ cbs_h264_split_fragment()

static int cbs_h264_split_fragment ( CodedBitstreamContext *  ctx,
CodedBitstreamFragment *  frag,
int  header 
)
static

Definition at line 251 of file cbs_h264.c.

◆ cbs_h2645_replace_ps()

cbs_h2645_replace_ps ( SPS  ,
sps  ,
seq_parameter_set_id   
)

Definition at line 378 of file cbs_h264.c.

◆ cbs_h264_write_nal_unit()

static int cbs_h264_write_nal_unit ( CodedBitstreamContext *  ctx,
CodedBitstreamUnit *  unit,
PutBitContext *  pbc 
)
static

Definition at line 500 of file cbs_h264.c.

◆ cbs_h264_discarded_nal_unit()

static int cbs_h264_discarded_nal_unit ( CodedBitstreamContext *  ctx,
const CodedBitstreamUnit *  unit,
enum AVDiscard  skip 
)
static

Definition at line 617 of file cbs_h264.c.

◆ cbs_h264_flush()

static av_cold void cbs_h264_flush ( CodedBitstreamContext *  ctx)
static

Definition at line 669 of file cbs_h264.c.

◆ cbs_h264_close()

static av_cold void cbs_h264_close ( CodedBitstreamContext *  ctx)
static

Definition at line 683 of file cbs_h264.c.

◆ cbs_h264_free_sei()

static void cbs_h264_free_sei ( AVRefStructOpaque  unused,
void *  content 
)
static

Definition at line 696 of file cbs_h264.c.

Variable Documentation

◆ cbs_h264_unit_types

CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types[]
static
Initial value:
= {
CBS_UNIT_TYPE_POD(H264_NAL_SPS, H264RawSPS),
CBS_UNIT_TYPE_POD(H264_NAL_SPS_EXT, H264RawSPSExtension),
CBS_UNIT_TYPE_INTERNAL_REF(H264_NAL_PPS, H264RawPPS, slice_group_id),
CBS_UNIT_TYPES_INTERNAL_REF((H264_NAL_IDR_SLICE,
H264_NAL_SLICE,
H264_NAL_AUXILIARY_SLICE), H264RawSlice, data),
CBS_UNIT_TYPE_POD(H264_NAL_AUD, H264RawAUD),
CBS_UNIT_TYPE_POD(H264_NAL_FILLER_DATA, H264RawFiller),
CBS_UNIT_TYPE_POD(H264_NAL_END_SEQUENCE, H264RawNALUnitHeader),
CBS_UNIT_TYPE_POD(H264_NAL_END_STREAM, H264RawNALUnitHeader),
CBS_UNIT_TYPE_COMPLEX(H264_NAL_SEI, H264RawSEI, &cbs_h264_free_sei),
CBS_UNIT_TYPE_END_OF_LIST
}

Definition at line 702 of file cbs_h264.c.

◆ ff_cbs_type_h264

const CodedBitstreamType ff_cbs_type_h264
Initial value:
= {
.codec_id = AV_CODEC_ID_H264,
.priv_data_size = sizeof(CodedBitstreamH264Context),
.unit_types = cbs_h264_unit_types,
.split_fragment = &cbs_h264_split_fragment,
.read_unit = &cbs_h264_read_nal_unit,
.write_unit = &cbs_h264_write_nal_unit,
.discarded_unit = &cbs_h264_discarded_nal_unit,
.assemble_fragment = &ff_cbs_h2645_assemble_fragment,
.flush = &cbs_h264_flush,
.close = &cbs_h264_close,
}

Definition at line 722 of file cbs_h264.c.

◆ ff_cbs_sei_h264_types

const SEIMessageTypeDescriptor ff_cbs_sei_h264_types[]

Definition at line 744 of file cbs_h264.c.

Referenced by ff_cbs_sei_find_type().

H264_NAL_PPS
@ H264_NAL_PPS
Definition: h264.h:42
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
CBS_UNIT_TYPE_COMPLEX
#define CBS_UNIT_TYPE_COMPLEX(type, structure, free_func)
Definition: cbs_internal.h:383
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
ff_cbs_read_ue_golomb
int ff_cbs_read_ue_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc, const char *name, const int *subscripts, uint32_t *write_to, uint32_t range_min, uint32_t range_max)
Definition: cbs_h2645.c:41
FUNC_H264
#define FUNC_H264(name)
Definition: cbs_h264.c:41
int64_t
long long int64_t
Definition: coverity.c:34
SUBSCRIPTS
#define SUBSCRIPTS(subs,...)
Definition: cbs_h264.c:56
CodedBitstreamContext
Context structure for coded bitstream operations.
Definition: cbs.h:226
cbs_h264_write_nal_unit
static int cbs_h264_write_nal_unit(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, PutBitContext *pbc)
Definition: cbs_h264.c:500
data
const char data[16]
Definition: mxf.c:149
cbs_h264_discarded_nal_unit
static int cbs_h264_discarded_nal_unit(CodedBitstreamContext *ctx, const CodedBitstreamUnit *unit, enum AVDiscard skip)
Definition: cbs_h264.c:617
cbs_h264_flush
static av_cold void cbs_h264_flush(CodedBitstreamContext *ctx)
Definition: cbs_h264.c:669
CodedBitstreamUnit
Coded bitstream unit structure.
Definition: cbs.h:77
ff_cbs_h2645_assemble_fragment
int ff_cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Definition: cbs_h2645.c:341
H264_NAL_FILLER_DATA
@ H264_NAL_FILLER_DATA
Definition: h264.h:46
close
static av_cold void close(AVCodecParserContext *s)
Definition: apv_parser.c:197
CBS_UNIT_TYPE_INTERNAL_REF
#define CBS_UNIT_TYPE_INTERNAL_REF(type, structure, ref_field)
Definition: cbs_internal.h:363
ff_cbs_write_ue_golomb
int ff_cbs_write_ue_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc, const char *name, const int *subscripts, uint32_t value, uint32_t range_min, uint32_t range_max)
Definition: cbs_h2645.c:145
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:210
cbs_h264_free_sei
static void cbs_h264_free_sei(AVRefStructOpaque unused, void *content)
Definition: cbs_h264.c:696
cbs_h264_unit_types
static CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types[]
Definition: cbs_h264.c:702
ctx
static AVFormatContext * ctx
Definition: movenc.c:49
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
NULL
#define NULL
Definition: coverity.c:32
state
static struct @553 state
H264RawNALUnitHeader
Definition: cbs_h264.h:31
ff_cbs_read_se_golomb
int ff_cbs_read_se_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc, const char *name, const int *subscripts, int32_t *write_to, int32_t range_min, int32_t range_max)
Definition: cbs_h2645.c:90
H264_NAL_IDR_SLICE
@ H264_NAL_IDR_SLICE
Definition: h264.h:39
H264_NAL_END_SEQUENCE
@ H264_NAL_END_SEQUENCE
Definition: h264.h:44
flush
void(* flush)(AVBSFContext *ctx)
Definition: dts2pts.c:552
CodedBitstreamH264Context
Definition: cbs_h264.h:424
size
int size
Definition: twinvq_data.h:10344
H264_NAL_AUXILIARY_SLICE
@ H264_NAL_AUXILIARY_SLICE
Definition: h264.h:53
ff_cbs_write_se_golomb
int ff_cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc, const char *name, const int *subscripts, int32_t value, int32_t range_min, int32_t range_max)
Definition: cbs_h2645.c:177
CBS_UNIT_TYPE_POD
#define CBS_UNIT_TYPE_POD(type_, structure)
Definition: cbs_internal.h:339
H264_NAL_SPS_EXT
@ H264_NAL_SPS_EXT
Definition: h264.h:47
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
CBS_UNIT_TYPE_END_OF_LIST
#define CBS_UNIT_TYPE_END_OF_LIST
Definition: cbs_internal.h:386
av_buffer_allocz
AVBufferRef * av_buffer_allocz(size_t size)
Same as av_buffer_alloc(), except the returned buffer will be initialized to zero.
Definition: buffer.c:93
H264RawSEI
Definition: cbs_h264.h:325
H264_NAL_SLICE
@ H264_NAL_SLICE
Definition: h264.h:35
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
H264_NAL_SEI
@ H264_NAL_SEI
Definition: h264.h:40
H264_NAL_SPS
@ H264_NAL_SPS
Definition: h264.h:41
H264RawAUD
Definition: cbs_h264.h:218
H264_NAL_END_STREAM
@ H264_NAL_END_STREAM
Definition: h264.h:45
CBS_UNIT_TYPES_INTERNAL_REF
#define CBS_UNIT_TYPES_INTERNAL_REF(types, structure, ref_field)
Definition: cbs_internal.h:355
cbs_h264_split_fragment
static int cbs_h264_split_fragment(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int header)
Definition: cbs_h264.c:251
H264RawFiller
Definition: cbs_h264.h:417
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
H264_NAL_AUD
@ H264_NAL_AUD
Definition: h264.h:43
H264RawSPSExtension
Definition: cbs_h264.h:157
width
#define width
Definition: dsp.h:89
AVFormatContext::priv_data
void * priv_data
Format private data.
Definition: avformat.h:1292
H264RawSlice
Definition: cbs_h264.h:408
cbs_h264_close
static av_cold void cbs_h264_close(CodedBitstreamContext *ctx)
Definition: cbs_h264.c:683
H264RawSPS
Definition: cbs_h264.h:102
H264RawPPS
Definition: cbs_h264.h:171
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