FFmpeg
Macros | Functions | Variables
formats.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/bprint.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"

Go to the source code of this file.

Macros

#define MERGE_REF(ret, a, fmts, type, fail_statement)
 Add all refs from a to ret and destroy a. More...
 
#define MERGE_FORMATS(a, b, fmts, nb, type, check, empty_allowed)
 Add all formats common to a and b to a, add b's refs to a and destroy b. More...
 
#define PRINT_NAME(type, type_name)
 
#define CONVERSION_FILTER_SWSCALE
 
#define CONVERSION_FILTER_ARESAMPLE
 
#define MAKE_FORMAT_LIST(type, field, count_field)
 
#define MAKE_FORMAT_LIST_TYPE(name, type)
 
#define ADD_FORMAT(f, fmt, unref_fn, type, list, nb)
 
#define ASSIGN_FMT(f, fmt, list, nb)
 
#define ASSIGN_FMT(f, fmt, list, nb)
 
#define FORMATS_REF(f, ref, unref_fn)
 
#define FIND_REF_INDEX(ref, idx)
 
#define FORMATS_UNREF(ref, list)
 
#define FREE_LIST(ref, list)   do { } while(0)
 
#define FREE_LIST(ref, list)
 
#define FORMATS_CHANGEREF(oldref, newref)
 
#define SET_COMMON_FORMATS(ctx, fmts, media_type, ref_fn, unref_fn)
 
#define SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, fmts, media_type, ref_fn, unref_fn)
 

Functions

static int merge_formats_internal (AVFilterFormats *a, AVFilterFormats *b, enum AVMediaType type, int check)
 
static int can_merge_pix_fmts (const void *a, const void *b)
 Check the formats lists for compatibility for merging without actually merging. More...
 
static int merge_pix_fmts (void *a, void *b)
 Merge the formats lists if they are compatible and update all the references of a and b to point to the combined list and free the old lists as needed. More...
 
static int can_merge_sample_fmts (const void *a, const void *b)
 See can_merge_pix_fmts(). More...
 
static int merge_sample_fmts (void *a, void *b)
 See merge_pix_fmts(). More...
 
static int merge_samplerates_internal (AVFilterFormats *a, AVFilterFormats *b, int check)
 
static int can_merge_samplerates (const void *a, const void *b)
 See can_merge_pix_fmts(). More...
 
static int merge_samplerates (void *a, void *b)
 See merge_pix_fmts(). More...
 
static int merge_channel_layouts_internal (AVFilterChannelLayouts *a, AVFilterChannelLayouts *b, int check)
 See merge_pix_fmts(). More...
 
static int can_merge_channel_layouts (const void *a, const void *b)
 
static int merge_channel_layouts (void *a, void *b)
 
static int merge_generic_internal (AVFilterFormats *a, AVFilterFormats *b, int check)
 
static int can_merge_generic (const void *a, const void *b)
 
static int merge_generic (void *a, void *b)
 
static void print_channel_layout_desc (AVBPrint *bp, const void *layoutsp)
 
static void print_sample_rate (AVBPrint *bp, const void *ratesp)
 
const AVFilterNegotiation * ff_filter_get_negotiation (const AVFilterLink *link)
 
int ff_fmt_is_in (int fmt, const int *fmts)
 Tell if an integer is contained in the provided -1-terminated list of integers. More...
 
AVFilterChannelLayouts * ff_make_channel_layout_list (const AVChannelLayout *fmts)
 
int ff_add_format (AVFilterFormats **avff, int64_t fmt)
 Add fmt to the list of media formats contained in *avff. More...
 
int ff_add_channel_layout (AVFilterChannelLayouts **l, const AVChannelLayout *channel_layout)
 
AVFilterFormats * ff_make_formats_list_singleton (int fmt)
 Equivalent to ff_make_format_list({const int[]}{ fmt, -1 }) More...
 
AVFilterFormats * ff_all_formats (enum AVMediaType type)
 Return a list of all formats supported by FFmpeg for the given media type. More...
 
AVFilterFormats * ff_formats_pixdesc_filter (unsigned want, unsigned rej)
 Construct a formats list containing all pixel formats with certain properties. More...
 
AVFilterFormats * ff_planar_sample_fmts (void)
 Construct a formats list containing all planar sample formats. More...
 
AVFilterFormats * ff_all_samplerates (void)
 
AVFilterChannelLayouts * ff_all_channel_layouts (void)
 Construct an empty AVFilterChannelLayouts/AVFilterFormats struct – representing any channel layout (with known disposition)/sample rate. More...
 
AVFilterChannelLayouts * ff_all_channel_counts (void)
 Construct an AVFilterChannelLayouts coding for any channel layout, with known or unknown disposition. More...
 
AVFilterFormats * ff_all_color_spaces (void)
 Construct an AVFilterFormats representing all possible color spaces. More...
 
AVFilterFormats * ff_all_color_ranges (void)
 Construct an AVFilterFormats representing all possible color ranges. More...
 
AVFilterFormats * ff_all_alpha_modes (void)
 Construct an AVFilterFormats representing all possible alpha modes. More...
 
int ff_channel_layouts_ref (AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
 Add *ref as a new reference to f. More...
 
int ff_formats_ref (AVFilterFormats *f, AVFilterFormats **ref)
 Add *ref as a new reference to formats. More...
 
void ff_formats_unref (AVFilterFormats **ref)
 If *ref is non-NULL, remove *ref as a reference to the format list it currently points to, deallocates that list if this was the last reference, and sets *ref to NULL. More...
 
void ff_channel_layouts_unref (AVFilterChannelLayouts **ref)
 Remove a reference to a channel layouts list. More...
 
void ff_channel_layouts_changeref (AVFilterChannelLayouts **oldref, AVFilterChannelLayouts **newref)
 
void ff_formats_changeref (AVFilterFormats **oldref, AVFilterFormats **newref)
 
int ff_set_common_channel_layouts (AVFilterContext *ctx, AVFilterChannelLayouts *channel_layouts)
 Helpers for query_formats() which set all free audio links to the same list of channel layouts/sample rates. More...
 
int ff_set_common_channel_layouts_from_list (AVFilterContext *ctx, const AVChannelLayout *fmts)
 Equivalent to ff_set_common_channel_layouts(ctx, ff_make_channel_layout_list(fmts)) More...
 
int ff_set_common_all_channel_counts (AVFilterContext *ctx)
 Equivalent to ff_set_common_channel_layouts(ctx, ff_all_channel_counts()) More...
 
int ff_set_common_samplerates (AVFilterContext *ctx, AVFilterFormats *samplerates)
 
int ff_set_common_samplerates_from_list (AVFilterContext *ctx, const int *samplerates)
 Equivalent to ff_set_common_samplerates(ctx, ff_make_format_list(samplerates)) More...
 
int ff_set_common_all_samplerates (AVFilterContext *ctx)
 Equivalent to ff_set_common_samplerates(ctx, ff_all_samplerates()) More...
 
int ff_set_common_color_spaces (AVFilterContext *ctx, AVFilterFormats *color_spaces)
 
int ff_set_common_color_spaces_from_list (AVFilterContext *ctx, const int *color_spaces)
 Equivalent to ff_set_common_color_spaces(ctx, ff_make_format_list(color_spaces)) More...
 
int ff_set_common_all_color_spaces (AVFilterContext *ctx)
 Equivalent to ff_set_common_color_spaces(ctx, ff_all_color_spaces()) More...
 
int ff_set_common_color_ranges (AVFilterContext *ctx, AVFilterFormats *color_ranges)
 
int ff_set_common_color_ranges_from_list (AVFilterContext *ctx, const int *color_ranges)
 Equivalent to ff_set_common_color_ranges(ctx, ff_make_format_list(color_ranges)) More...
 
int ff_set_common_all_color_ranges (AVFilterContext *ctx)
 Equivalent to ff_set_common_color_ranges(ctx, ff_all_color_ranges()) More...
 
int ff_set_common_alpha_modes (AVFilterContext *ctx, AVFilterFormats *alpha_modes)
 
int ff_set_common_alpha_modes_from_list (AVFilterContext *ctx, const int *alpha_modes)
 Equivalent to ff_set_common_alpha_modes(ctx, ff_make_format_list(alpha_modes)) More...
 
int ff_set_common_all_alpha_modes (AVFilterContext *ctx)
 Equivalent to ff_set_common_alpha_modes(ctx, ff_all_alpha_modes()) More...
 
int ff_set_common_formats (AVFilterContext *ctx, AVFilterFormats *formats)
 A helper for query_formats() which sets all links to the same list of formats. More...
 
int ff_set_common_formats_from_list (AVFilterContext *ctx, const int *fmts)
 Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts)) More...
 
int ff_set_sample_formats_from_list (AVFilterContext *ctx, const enum AVSampleFormat *fmts)
 Equivalent to ff_set_common_formats(ctx, ff_make_sample_format_list(fmts)) More...
 
int ff_set_pixel_formats_from_list (AVFilterContext *ctx, const enum AVPixelFormat *fmts)
 Equivalent to ff_set_common_formats(ctx, ff_make_pixel_format_list(fmts)) More...
 
int ff_set_common_channel_layouts2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterChannelLayouts *channel_layouts)
 Helpers for query_formats2() which set all free audio links to the same list of channel layouts/sample rates. More...
 
int ff_set_common_channel_layouts_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const AVChannelLayout *fmts)
 
int ff_set_common_all_channel_counts2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
int ff_set_common_samplerates2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterFormats *samplerates)
 
int ff_set_common_samplerates_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const int *samplerates)
 
int ff_set_common_all_samplerates2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
int ff_set_common_color_spaces2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterFormats *color_spaces)
 
int ff_set_common_color_spaces_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const int *color_spaces)
 
int ff_set_common_all_color_spaces2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
int ff_set_common_color_ranges2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterFormats *color_ranges)
 
int ff_set_common_color_ranges_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const int *color_ranges)
 
int ff_set_common_all_color_ranges2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
int ff_set_common_alpha_modes2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterFormats *alpha_modes)
 
int ff_set_common_alpha_modes_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const int *alpha_modes)
 
int ff_set_common_all_alpha_modes2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
int ff_set_common_formats2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, AVFilterFormats *formats)
 
int ff_set_common_formats_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const int *fmts)
 
int ff_set_sample_formats_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const enum AVSampleFormat *fmts)
 
int ff_set_pixel_formats_from_list2 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const enum AVPixelFormat *fmts)
 
int ff_default_query_formats (AVFilterContext *ctx)
 Sets all remaining unset filter lists for all inputs/outputs to their corresponding ff_all_*() lists. More...
 
static int check_list (void *log, const char *name, const AVFilterFormats *fmts)
 
int ff_formats_check_pixel_formats (void *log, const AVFilterFormats *fmts)
 Check that fmts is a valid pixel formats list. More...
 
int ff_formats_check_sample_formats (void *log, const AVFilterFormats *fmts)
 Check that fmts is a valid sample formats list. More...
 
int ff_formats_check_sample_rates (void *log, const AVFilterFormats *fmts)
 Check that fmts is a valid sample rates list. More...
 
int ff_formats_check_color_spaces (void *log, const AVFilterFormats *fmts)
 Check that fmts is a valid formats list for YUV colorspace metadata. More...
 
int ff_formats_check_color_ranges (void *log, const AVFilterFormats *fmts)
 
int ff_formats_check_alpha_modes (void *log, const AVFilterFormats *fmts)
 Check that fmts is a valid formats list for alpha modes. More...
 
static int layouts_compatible (const AVChannelLayout *a, const AVChannelLayout *b)
 
int ff_formats_check_channel_layouts (void *log, const AVFilterChannelLayouts *fmts)
 Check that fmts is a valid channel layouts list. More...
 

Variables

static const AVFilterFormatsMerger mergers_video []
 
static const AVFilterFormatsMerger mergers_audio []
 
static const AVFilterNegotiation negotiate_video
 
static const AVFilterNegotiation negotiate_audio
 

Macro Definition Documentation

◆ MERGE_REF

#define MERGE_REF (   ret,
  a,
  fmts,
  type,
  fail_statement 
)
Value:
do { \
type ***tmp; \
int i; \
\
if (!(tmp = av_realloc_array(ret->refs, ret->refcount + a->refcount, \
sizeof(*tmp)))) \
{ fail_statement } \
ret->refs = tmp; \
\
for (i = 0; i < a->refcount; i ++) { \
ret->refs[ret->refcount] = a->refs[i]; \
*ret->refs[ret->refcount++] = ret; \
} \
\
av_freep(&a->refs); \
av_freep(&a->fmts); \
av_freep(&a); \
} while (0)

Add all refs from a to ret and destroy a.

Definition at line 35 of file formats.c.

◆ MERGE_FORMATS

#define MERGE_FORMATS (   a,
  b,
  fmts,
  nb,
  type,
  check,
  empty_allowed 
)

Add all formats common to a and b to a, add b's refs to a and destroy b.

If check is set, nothing is modified and it is only checked whether the formats are compatible. If empty_allowed is set and one of a,b->nb is zero, the lists are merged; otherwise, 0 (for nonmergeability) is returned.

Definition at line 62 of file formats.c.

◆ PRINT_NAME

#define PRINT_NAME (   type,
  type_name 
)
Value:
static void print_##type_name(AVBPrint *bp, const void *fmtsp) \
{ \
const AVFilterFormats *fmts = fmtsp; \
for (int i = 0; i < fmts->nb_formats; i++) { \
const char *name = av_##type_name(fmts->formats[i]); \
av_bprint_chars(bp, ' ', i ? 1 : 0); \
av_bprint_append_data(bp, name, name ? strlen(name) : 0); \
} \
}

Definition at line 348 of file formats.c.

◆ CONVERSION_FILTER_SWSCALE

#define CONVERSION_FILTER_SWSCALE
Value:
.conversion_filter = "scale", \
.conversion_opts_offset = offsetof(AVFilterGraph, scale_sws_opts),

Definition at line 381 of file formats.c.

◆ CONVERSION_FILTER_ARESAMPLE

#define CONVERSION_FILTER_ARESAMPLE
Value:
.conversion_filter = "aresample", \
.conversion_opts_offset = offsetof(AVFilterGraph, aresample_swr_opts),

Definition at line 385 of file formats.c.

◆ MAKE_FORMAT_LIST

#define MAKE_FORMAT_LIST (   type,
  field,
  count_field 
)
Value:
type *formats; \
int count = 0; \
if (fmts) \
for (count = 0; fmts[count] != -1; count++) \
; \
formats = av_mallocz(sizeof(*formats)); \
if (!formats) \
return NULL; \
formats->count_field = count; \
if (count) { \
formats->field = av_malloc_array(count, sizeof(*formats->field)); \
if (!formats->field) { \
av_freep(&formats); \
return NULL; \
} \
}

Definition at line 481 of file formats.c.

◆ MAKE_FORMAT_LIST_TYPE

#define MAKE_FORMAT_LIST_TYPE (   name,
  type 
)
Value:
AVFilterFormats *ff_make_ ## name ## _list(const type* fmts) \
{ \
MAKE_FORMAT_LIST(AVFilterFormats, formats, nb_formats); \
while (count--) \
formats->formats[count] = (int)fmts[count]; \
return formats; \
}

Definition at line 499 of file formats.c.

◆ ADD_FORMAT

#define ADD_FORMAT (   f,
  fmt,
  unref_fn,
  type,
  list,
  nb 
)
Value:
do { \
type *fmts; \
\
if (!(*f) && !(*f = av_mallocz(sizeof(**f)))) { \
return AVERROR(ENOMEM); \
} \
\
fmts = av_realloc_array((*f)->list, (*f)->nb + 1, \
sizeof(*(*f)->list)); \
if (!fmts) { \
unref_fn(f); \
return AVERROR(ENOMEM); \
} \
\
(*f)->list = fmts; \
ASSIGN_FMT(f, fmt, list, nb); \
} while (0)

Definition at line 548 of file formats.c.

◆ ASSIGN_FMT [1/2]

#define ASSIGN_FMT (   f,
  fmt,
  list,
  nb 
)
Value:
do { \
(*f)->list[(*f)->nb++] = fmt; \
} while (0)

Definition at line 579 of file formats.c.

◆ ASSIGN_FMT [2/2]

#define ASSIGN_FMT (   f,
  fmt,
  list,
  nb 
)
Value:
do { \
int ret; \
memset((*f)->list + (*f)->nb, 0, sizeof(*(*f)->list)); \
ret = av_channel_layout_copy(&(*f)->list[(*f)->nb], fmt); \
if (ret < 0) \
return ret; \
(*f)->nb++; \
} while (0)

Definition at line 579 of file formats.c.

◆ FORMATS_REF

#define FORMATS_REF (   f,
  ref,
  unref_fn 
)
Value:
void *tmp; \
\
if (!f) \
return AVERROR(ENOMEM); \
\
tmp = av_realloc_array(f->refs, f->refcount + 1, sizeof(*f->refs)); \
if (!tmp) { \
unref_fn(&f); \
return AVERROR(ENOMEM); \
} \
f->refs = tmp; \
f->refs[f->refcount++] = ref; \
*ref = f; \
return 0

Definition at line 736 of file formats.c.

◆ FIND_REF_INDEX

#define FIND_REF_INDEX (   ref,
  idx 
)
Value:
do { \
int i; \
for (i = 0; i < (*ref)->refcount; i ++) \
if((*ref)->refs[i] == ref) { \
idx = i; \
break; \
} \
} while (0)

Definition at line 762 of file formats.c.

◆ FORMATS_UNREF

#define FORMATS_UNREF (   ref,
  list 
)
Value:
do { \
int idx = -1; \
\
if (!*ref) \
return; \
\
FIND_REF_INDEX(ref, idx); \
\
if (idx >= 0) { \
memmove((*ref)->refs + idx, (*ref)->refs + idx + 1, \
sizeof(*(*ref)->refs) * ((*ref)->refcount - idx - 1)); \
--(*ref)->refcount; \
} \
if (!(*ref)->refcount) { \
FREE_LIST(ref, list); \
av_free((*ref)->list); \
av_free((*ref)->refs); \
av_free(*ref); \
} \
*ref = NULL; \
} while (0)

Definition at line 772 of file formats.c.

◆ FREE_LIST [1/2]

#define FREE_LIST (   ref,
  list 
)    do { } while(0)

Definition at line 802 of file formats.c.

◆ FREE_LIST [2/2]

#define FREE_LIST (   ref,
  list 
)
Value:
do { \
for (int i = 0; i < (*ref)->nb_channel_layouts; i++) \
av_channel_layout_uninit(&(*ref)->list[i]); \
} while(0)

Definition at line 802 of file formats.c.

◆ FORMATS_CHANGEREF

#define FORMATS_CHANGEREF (   oldref,
  newref 
)
Value:
do { \
int idx = -1; \
\
FIND_REF_INDEX(oldref, idx); \
\
if (idx >= 0) { \
(*oldref)->refs[idx] = newref; \
*newref = *oldref; \
*oldref = NULL; \
} \
} while (0)

Definition at line 813 of file formats.c.

◆ SET_COMMON_FORMATS

#define SET_COMMON_FORMATS (   ctx,
  fmts,
  media_type,
  ref_fn,
  unref_fn 
)
Value:
int i; \
\
if (!fmts) \
return AVERROR(ENOMEM); \
\
for (i = 0; i < ctx->nb_inputs; i++) { \
AVFilterLink *const link = ctx->inputs[i]; \
if (link && !link->outcfg.fmts && \
(media_type == AVMEDIA_TYPE_UNKNOWN || link->type == media_type)) { \
int ret = ref_fn(fmts, &ctx->inputs[i]->outcfg.fmts); \
if (ret < 0) { \
return ret; \
} \
} \
} \
for (i = 0; i < ctx->nb_outputs; i++) { \
AVFilterLink *const link = ctx->outputs[i]; \
if (link && !link->incfg.fmts && \
(media_type == AVMEDIA_TYPE_UNKNOWN || link->type == media_type)) { \
int ret = ref_fn(fmts, &ctx->outputs[i]->incfg.fmts); \
if (ret < 0) { \
return ret; \
} \
} \
} \
\
if (!fmts->refcount) \
unref_fn(&fmts); \
\
return 0;

Definition at line 837 of file formats.c.

◆ SET_COMMON_FORMATS2

#define SET_COMMON_FORMATS2 (   ctx,
  cfg_in,
  cfg_out,
  fmts,
  media_type,
  ref_fn,
  unref_fn 
)
Value:
if (!fmts) \
return AVERROR(ENOMEM); \
\
for (unsigned i = 0; i < ctx->nb_inputs; i++) { \
const AVFilterLink *const link = ctx->inputs[i]; \
if (!cfg_in[i]->fmts && \
(media_type == AVMEDIA_TYPE_UNKNOWN || \
link->type == media_type)) { \
int ret = ref_fn(fmts, &cfg_in[i]->fmts); \
if (ret < 0) { \
return ret; \
} \
} \
} \
for (unsigned i = 0; i < ctx->nb_outputs; i++) { \
const AVFilterLink *const link = ctx->outputs[i]; \
if (!cfg_out[i]->fmts && \
(media_type == AVMEDIA_TYPE_UNKNOWN || \
link->type == media_type)) { \
int ret = ref_fn(fmts, &cfg_out[i]->fmts); \
if (ret < 0) { \
return ret; \
} \
} \
} \
\
if (!fmts->refcount) \
unref_fn(&fmts); \
\
return 0;

Definition at line 985 of file formats.c.

Function Documentation

◆ merge_formats_internal()

static int merge_formats_internal ( AVFilterFormats *  a,
AVFilterFormats *  b,
enum AVMediaType  type,
int  check 
)
static

Definition at line 94 of file formats.c.

Referenced by can_merge_pix_fmts(), can_merge_sample_fmts(), merge_pix_fmts(), and merge_sample_fmts().

◆ can_merge_pix_fmts()

static int can_merge_pix_fmts ( const void *  a,
const void *  b 
)
static

Check the formats lists for compatibility for merging without actually merging.

Returns
1 if they are compatible, 0 if not.

Definition at line 143 of file formats.c.

◆ merge_pix_fmts()

static int merge_pix_fmts ( void *  a,
void *  b 
)
static

Merge the formats lists if they are compatible and update all the references of a and b to point to the combined list and free the old lists as needed.

The combined list usually contains the intersection of the lists of a and b.

Both a and b must have owners (i.e. refcount > 0) for these functions.

Returns
1 if merging succeeded, 0 if a and b are incompatible and negative AVERROR code on failure. a and b are unmodified if 0 is returned.

Definition at line 161 of file formats.c.

◆ can_merge_sample_fmts()

static int can_merge_sample_fmts ( const void *  a,
const void *  b 
)
static

See can_merge_pix_fmts().

Definition at line 169 of file formats.c.

◆ merge_sample_fmts()

static int merge_sample_fmts ( void *  a,
void *  b 
)
static

See merge_pix_fmts().

Definition at line 178 of file formats.c.

◆ merge_samplerates_internal()

static int merge_samplerates_internal ( AVFilterFormats *  a,
AVFilterFormats *  b,
int  check 
)
static

Definition at line 183 of file formats.c.

Referenced by can_merge_samplerates(), and merge_samplerates().

◆ can_merge_samplerates()

static int can_merge_samplerates ( const void *  a,
const void *  b 
)
static

See can_merge_pix_fmts().

Definition at line 196 of file formats.c.

◆ merge_samplerates()

static int merge_samplerates ( void *  a,
void *  b 
)
static

See merge_pix_fmts().

Definition at line 204 of file formats.c.

◆ merge_channel_layouts_internal()

static int merge_channel_layouts_internal ( AVFilterChannelLayouts *  a,
AVFilterChannelLayouts *  b,
int  check 
)
static

See merge_pix_fmts().

Definition at line 212 of file formats.c.

Referenced by can_merge_channel_layouts(), and merge_channel_layouts().

◆ can_merge_channel_layouts()

static int can_merge_channel_layouts ( const void *  a,
const void *  b 
)
static

Definition at line 313 of file formats.c.

◆ merge_channel_layouts()

static int merge_channel_layouts ( void *  a,
void *  b 
)
static

Definition at line 319 of file formats.c.

◆ merge_generic_internal()

static int merge_generic_internal ( AVFilterFormats *  a,
AVFilterFormats *  b,
int  check 
)
static

Definition at line 324 of file formats.c.

Referenced by can_merge_generic(), and merge_generic().

◆ can_merge_generic()

static int can_merge_generic ( const void *  a,
const void *  b 
)
static

Definition at line 337 of file formats.c.

◆ merge_generic()

static int merge_generic ( void *  a,
void *  b 
)
static

Definition at line 343 of file formats.c.

◆ print_channel_layout_desc()

static void print_channel_layout_desc ( AVBPrint *  bp,
const void *  layoutsp 
)
static

Definition at line 365 of file formats.c.

◆ print_sample_rate()

static void print_sample_rate ( AVBPrint *  bp,
const void *  ratesp 
)
static

Definition at line 374 of file formats.c.

◆ ff_filter_get_negotiation()

const AVFilterNegotiation* ff_filter_get_negotiation ( const AVFilterLink *  link)

Definition at line 461 of file formats.c.

Referenced by print_filter_formats(), and query_formats().

◆ ff_fmt_is_in()

int ff_fmt_is_in ( int  fmt,
const int *  fmts 
)

Tell if an integer is contained in the provided -1-terminated list of integers.

This is useful for determining (for instance) if an AVPixelFormat is in an array of supported formats.

Parameters
fmtprovided format
fmts-1-terminated list of formats
Returns
1 if present, 0 if absent

Definition at line 470 of file formats.c.

Referenced by config_input(), config_input_main(), config_input_overlay(), config_out_props(), config_props(), and filter_frame().

◆ ff_make_channel_layout_list()

AVFilterChannelLayouts* ff_make_channel_layout_list ( const AVChannelLayout *  fmts)

Definition at line 512 of file formats.c.

Referenced by ff_set_common_channel_layouts_from_list(), ff_set_common_channel_layouts_from_list2(), movie_query_formats(), and query_formats().

◆ ff_add_format()

int ff_add_format ( AVFilterFormats **  avff,
int64_t  fmt 
)

Add fmt to the list of media formats contained in *avff.

If *avff is NULL the function allocates the filter formats struct and puts its pointer in *avff.

Returns
a non negative value in case of success, or a negative value corresponding to an AVERROR code in case of error

Definition at line 572 of file formats.c.

Referenced by asink_query_formats(), ff_all_alpha_modes(), ff_all_color_ranges(), ff_all_color_spaces(), ff_all_formats(), ff_draw_supported_pixel_formats(), ff_planar_sample_fmts(), hwupload_query_formats(), init(), libplacebo_query_format(), qrencodesrc_query_formats(), query_formats(), reduce_formats_on_filter(), and vsink_query_formats().

◆ ff_add_channel_layout()

int ff_add_channel_layout ( AVFilterChannelLayouts **  l,
const AVChannelLayout *  channel_layout 
)

Definition at line 589 of file formats.c.

Referenced by aeval_query_formats(), channelmap_query_formats(), join_query_formats(), query_formats(), and reduce_formats_on_filter().

◆ ff_make_formats_list_singleton()

AVFilterFormats* ff_make_formats_list_singleton ( int  fmt)

Equivalent to ff_make_format_list({const int[]}{ fmt, -1 })

Definition at line 597 of file formats.c.

Referenced by ff_default_query_formats(), libplacebo_query_format(), and query_formats().

◆ ff_all_formats()

AVFilterFormats* ff_all_formats ( enum AVMediaType  type)

Return a list of all formats supported by FFmpeg for the given media type.

Definition at line 603 of file formats.c.

Referenced by ff_default_query_formats(), hwmap_query_formats(), init(), and query_formats().

◆ ff_formats_pixdesc_filter()

AVFilterFormats* ff_formats_pixdesc_filter ( unsigned  want,
unsigned  rej 
)

Construct a formats list containing all pixel formats with certain properties.

Definition at line 621 of file formats.c.

Referenced by ff_all_formats(), hwdownload_query_formats(), query_format(), and query_formats().

◆ ff_planar_sample_fmts()

AVFilterFormats* ff_planar_sample_fmts ( void  )

Construct a formats list containing all planar sample formats.

Definition at line 661 of file formats.c.

Referenced by channelmap_query_formats(), join_query_formats(), and query_formats().

◆ ff_all_samplerates()

AVFilterFormats* ff_all_samplerates ( void  )

Definition at line 674 of file formats.c.

Referenced by ff_set_common_all_samplerates(), ff_set_common_all_samplerates2(), and query_formats().

◆ ff_all_channel_layouts()

AVFilterChannelLayouts* ff_all_channel_layouts ( void  )

Construct an empty AVFilterChannelLayouts/AVFilterFormats struct – representing any channel layout (with known disposition)/sample rate.

Definition at line 680 of file formats.c.

Referenced by join_query_formats(), and query_formats().

◆ ff_all_channel_counts()

AVFilterChannelLayouts* ff_all_channel_counts ( void  )

Construct an AVFilterChannelLayouts coding for any channel layout, with known or unknown disposition.

Definition at line 689 of file formats.c.

Referenced by aeval_query_formats(), ff_set_common_all_channel_counts(), ff_set_common_all_channel_counts2(), and query_formats().

◆ ff_all_color_spaces()

AVFilterFormats* ff_all_color_spaces ( void  )

Construct an AVFilterFormats representing all possible color spaces.

Note: This list does not include AVCOL_SPC_RESERVED.

Definition at line 698 of file formats.c.

Referenced by ff_set_common_all_color_spaces(), ff_set_common_all_color_spaces2(), init(), libplacebo_query_format(), and query_formats().

◆ ff_all_color_ranges()

AVFilterFormats* ff_all_color_ranges ( void  )

Construct an AVFilterFormats representing all possible color ranges.

Definition at line 714 of file formats.c.

Referenced by ff_set_common_all_color_ranges(), ff_set_common_all_color_ranges2(), init(), libplacebo_query_format(), and query_formats().

◆ ff_all_alpha_modes()

AVFilterFormats* ff_all_alpha_modes ( void  )

Construct an AVFilterFormats representing all possible alpha modes.

Definition at line 725 of file formats.c.

Referenced by ff_set_common_all_alpha_modes(), ff_set_common_all_alpha_modes2(), init(), libplacebo_query_format(), and query_formats().

◆ ff_channel_layouts_ref()

int ff_channel_layouts_ref ( AVFilterChannelLayouts *  f,
AVFilterChannelLayouts **  ref 
)

Add *ref as a new reference to f.

Definition at line 752 of file formats.c.

Referenced by aeval_query_formats(), channelmap_query_formats(), ff_set_common_channel_layouts(), ff_set_common_channel_layouts2(), join_query_formats(), movie_query_formats(), and query_formats().

◆ ff_formats_ref()

int ff_formats_ref ( AVFilterFormats *  formats,
AVFilterFormats **  ref 
)

Add *ref as a new reference to formats.

That is the pointers will point like in the ascii art below:

|formats |<-----—. | ____ | ____|___________________ | |refs| | | __|_ | |* * | | | | | | AVFilterLink | |* *------—>|*ref| | |____| | | |____| |________| |________________________

Definition at line 757 of file formats.c.

Referenced by amf_setup_input_output_formats(), cudaupload_query_formats(), ff_set_common_alpha_modes(), ff_set_common_alpha_modes2(), ff_set_common_color_ranges(), ff_set_common_color_ranges2(), ff_set_common_color_spaces(), ff_set_common_color_spaces2(), ff_set_common_formats(), ff_set_common_formats2(), ff_set_common_samplerates(), ff_set_common_samplerates2(), hwdownload_query_formats(), hwmap_query_formats(), hwupload_query_formats(), init(), libplacebo_query_format(), movie_query_formats(), overlay_qsv_query_formats(), and query_formats().

◆ ff_formats_unref()

void ff_formats_unref ( AVFilterFormats **  ref)

If *ref is non-NULL, remove *ref as a reference to the format list it currently points to, deallocates that list if this was the last reference, and sets *ref to NULL. 

    Before                                 After

________ ________ NULL |formats |<-----—. |formats | ^ | ____ | ____|________________ | ____ | ____|________________ | |refs| | | __|_ | |refs| | | __|_ | |* * | | | | | | AVFilterLink | |* * | | | | | | AVFilterLink | |* ------—>|*ref| | | | | | |*ref| | |____| | | |____| | |____| | | |____| |________| |_____________________ |________| |_____________________

Definition at line 796 of file formats.c.

Referenced by ff_add_format(), ff_formats_ref(), ff_set_common_alpha_modes(), ff_set_common_alpha_modes2(), ff_set_common_color_ranges(), ff_set_common_color_ranges2(), ff_set_common_color_spaces(), ff_set_common_color_spaces2(), ff_set_common_formats(), ff_set_common_formats2(), ff_set_common_samplerates(), ff_set_common_samplerates2(), free_link(), invert_formats(), libplacebo_query_format(), pick_format(), and uninit().

◆ ff_channel_layouts_unref()

void ff_channel_layouts_unref ( AVFilterChannelLayouts **  ref)

Remove a reference to a channel layouts list.

Definition at line 808 of file formats.c.

Referenced by ff_add_channel_layout(), ff_channel_layouts_ref(), ff_set_common_channel_layouts(), ff_set_common_channel_layouts2(), free_link(), and pick_format().

◆ ff_channel_layouts_changeref()

void ff_channel_layouts_changeref ( AVFilterChannelLayouts **  oldref,
AVFilterChannelLayouts **  newref 
)

Definition at line 826 of file formats.c.

Referenced by avfilter_insert_filter().

◆ ff_formats_changeref()

void ff_formats_changeref ( AVFilterFormats **  oldref,
AVFilterFormats **  newref 
) 
   Before                                 After

|formats |<------—. |formats |<------—. | ____ | ___|___ | ____ | ___|___ | |refs| | | | | | |refs| | | | | NULL | |* ------—>|*oldref| | | ------—>|*newref| ^ | | * | | |_______| | |* * | | |_______| ___|___ | |____| | | |____| | | | | |________| |________| |*oldref| |_______|

Definition at line 832 of file formats.c.

Referenced by avfilter_insert_filter().

◆ ff_set_common_channel_layouts()

int ff_set_common_channel_layouts ( AVFilterContext *  ctx,
AVFilterChannelLayouts *  layouts 
)

Helpers for query_formats() which set all free audio links to the same list of channel layouts/sample rates.

If there are no links hooked to this list, the list is freed.

Definition at line 869 of file formats.c.

Referenced by ff_set_common_all_channel_counts(), and ff_set_common_channel_layouts_from_list().

◆ ff_set_common_channel_layouts_from_list()

int ff_set_common_channel_layouts_from_list ( AVFilterContext *  ctx,
const AVChannelLayout *  fmts 
)

Equivalent to ff_set_common_channel_layouts(ctx, ff_make_channel_layout_list(fmts))

Definition at line 876 of file formats.c.

◆ ff_set_common_all_channel_counts()

int ff_set_common_all_channel_counts ( AVFilterContext *  ctx)

Equivalent to ff_set_common_channel_layouts(ctx, ff_all_channel_counts())

Definition at line 882 of file formats.c.

Referenced by ff_default_query_formats().

◆ ff_set_common_samplerates()

int ff_set_common_samplerates ( AVFilterContext *  ctx,
AVFilterFormats *  samplerates 
)

Definition at line 887 of file formats.c.

Referenced by ff_set_common_all_samplerates(), and ff_set_common_samplerates_from_list().

◆ ff_set_common_samplerates_from_list()

int ff_set_common_samplerates_from_list ( AVFilterContext *  ctx,
const int *  samplerates 
)

Equivalent to ff_set_common_samplerates(ctx, ff_make_format_list(samplerates))

Definition at line 894 of file formats.c.

◆ ff_set_common_all_samplerates()

int ff_set_common_all_samplerates ( AVFilterContext *  ctx)

Equivalent to ff_set_common_samplerates(ctx, ff_all_samplerates())

Definition at line 900 of file formats.c.

Referenced by ff_default_query_formats(), and query_formats().

◆ ff_set_common_color_spaces()

int ff_set_common_color_spaces ( AVFilterContext *  ctx,
AVFilterFormats *  color_spaces 
)

Definition at line 905 of file formats.c.

Referenced by ff_set_common_all_color_spaces(), and ff_set_common_color_spaces_from_list().

◆ ff_set_common_color_spaces_from_list()

int ff_set_common_color_spaces_from_list ( AVFilterContext *  ctx,
const int *  color_spaces 
)

Equivalent to ff_set_common_color_spaces(ctx, ff_make_format_list(color_spaces))

Definition at line 912 of file formats.c.

◆ ff_set_common_all_color_spaces()

int ff_set_common_all_color_spaces ( AVFilterContext *  ctx)

Equivalent to ff_set_common_color_spaces(ctx, ff_all_color_spaces())

Definition at line 918 of file formats.c.

Referenced by ff_default_query_formats().

◆ ff_set_common_color_ranges()

int ff_set_common_color_ranges ( AVFilterContext *  ctx,
AVFilterFormats *  color_ranges 
)

Definition at line 923 of file formats.c.

Referenced by ff_set_common_all_color_ranges(), and ff_set_common_color_ranges_from_list().

◆ ff_set_common_color_ranges_from_list()

int ff_set_common_color_ranges_from_list ( AVFilterContext *  ctx,
const int *  color_ranges 
)

Equivalent to ff_set_common_color_ranges(ctx, ff_make_format_list(color_ranges))

Definition at line 930 of file formats.c.

◆ ff_set_common_all_color_ranges()

int ff_set_common_all_color_ranges ( AVFilterContext *  ctx)

Equivalent to ff_set_common_color_ranges(ctx, ff_all_color_ranges())

Definition at line 936 of file formats.c.

Referenced by ff_default_query_formats().

◆ ff_set_common_alpha_modes()

int ff_set_common_alpha_modes ( AVFilterContext *  ctx,
AVFilterFormats *  alpha_modes 
)

Definition at line 941 of file formats.c.

Referenced by ff_set_common_all_alpha_modes(), and ff_set_common_alpha_modes_from_list().

◆ ff_set_common_alpha_modes_from_list()

int ff_set_common_alpha_modes_from_list ( AVFilterContext *  ctx,
const int *  alpha_modes 
)

Equivalent to ff_set_common_alpha_modes(ctx, ff_make_format_list(alpha_modes))

Definition at line 948 of file formats.c.

◆ ff_set_common_all_alpha_modes()

int ff_set_common_all_alpha_modes ( AVFilterContext *  ctx)

Equivalent to ff_set_common_alpha_modes(ctx, ff_all_alpha_modes())

Definition at line 954 of file formats.c.

Referenced by ff_default_query_formats().

◆ ff_set_common_formats()

int ff_set_common_formats ( AVFilterContext *  ctx,
AVFilterFormats *  formats 
)

A helper for query_formats() which sets all links to the same list of formats.

If there are no links hooked to this filter, the list of formats is freed.

Definition at line 964 of file formats.c.

Referenced by ff_default_query_formats(), ff_set_common_formats_from_list(), ff_set_pixel_formats_from_list(), and ff_set_sample_formats_from_list().

◆ ff_set_common_formats_from_list()

int ff_set_common_formats_from_list ( AVFilterContext *  ctx,
const int *  fmts 
)

Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))

Definition at line 970 of file formats.c.

◆ ff_set_sample_formats_from_list()

int ff_set_sample_formats_from_list ( AVFilterContext *  ctx,
const enum AVSampleFormat *  fmts 
)

Equivalent to ff_set_common_formats(ctx, ff_make_sample_format_list(fmts))

Definition at line 975 of file formats.c.

Referenced by query_formats().

◆ ff_set_pixel_formats_from_list()

int ff_set_pixel_formats_from_list ( AVFilterContext *  ctx,
const enum AVPixelFormat *  fmts 
)

Equivalent to ff_set_common_formats(ctx, ff_make_pixel_format_list(fmts))

Definition at line 980 of file formats.c.

◆ ff_set_common_channel_layouts2()

int ff_set_common_channel_layouts2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterChannelLayouts *  channel_layouts 
)

Helpers for query_formats2() which set all free audio links to the same list of channel layouts/sample rates.

If there are no links hooked to this list, the list is freed.

Definition at line 1018 of file formats.c.

Referenced by ff_set_common_all_channel_counts2(), ff_set_common_channel_layouts_from_list2(), and query_formats().

◆ ff_set_common_channel_layouts_from_list2()

int ff_set_common_channel_layouts_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const AVChannelLayout *  fmts 
)

Definition at line 1027 of file formats.c.

Referenced by asink_query_formats(), and query_formats().

◆ ff_set_common_all_channel_counts2()

int ff_set_common_all_channel_counts2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)

Definition at line 1035 of file formats.c.

Referenced by query_formats().

◆ ff_set_common_samplerates2()

int ff_set_common_samplerates2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterFormats *  samplerates 
)

Definition at line 1042 of file formats.c.

Referenced by asink_query_formats(), ff_set_common_all_samplerates2(), ff_set_common_samplerates_from_list2(), and query_formats().

◆ ff_set_common_samplerates_from_list2()

int ff_set_common_samplerates_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const int *  samplerates 
)

Definition at line 1051 of file formats.c.

Referenced by asink_query_formats(), and query_formats().

◆ ff_set_common_all_samplerates2()

int ff_set_common_all_samplerates2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)

Definition at line 1059 of file formats.c.

◆ ff_set_common_color_spaces2()

int ff_set_common_color_spaces2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterFormats *  color_spaces 
)

Definition at line 1066 of file formats.c.

Referenced by ff_set_common_all_color_spaces2(), ff_set_common_color_spaces_from_list2(), query_formats(), and vsink_query_formats().

◆ ff_set_common_color_spaces_from_list2()

int ff_set_common_color_spaces_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const int *  color_spaces 
)

Definition at line 1075 of file formats.c.

Referenced by vsink_query_formats().

◆ ff_set_common_all_color_spaces2()

int ff_set_common_all_color_spaces2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)

Definition at line 1083 of file formats.c.

◆ ff_set_common_color_ranges2()

int ff_set_common_color_ranges2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterFormats *  color_ranges 
)

Definition at line 1090 of file formats.c.

Referenced by ff_set_common_all_color_ranges2(), ff_set_common_color_ranges_from_list2(), query_formats(), and vsink_query_formats().

◆ ff_set_common_color_ranges_from_list2()

int ff_set_common_color_ranges_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const int *  color_ranges 
)

Definition at line 1099 of file formats.c.

Referenced by vsink_query_formats().

◆ ff_set_common_all_color_ranges2()

int ff_set_common_all_color_ranges2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)

Definition at line 1107 of file formats.c.

◆ ff_set_common_alpha_modes2()

int ff_set_common_alpha_modes2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterFormats *  alpha_modes 
)

Definition at line 1114 of file formats.c.

Referenced by ff_set_common_all_alpha_modes2(), ff_set_common_alpha_modes_from_list2(), query_formats(), and vsink_query_formats().

◆ ff_set_common_alpha_modes_from_list2()

int ff_set_common_alpha_modes_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const int *  alpha_modes 
)

Definition at line 1123 of file formats.c.

Referenced by query_formats(), and vsink_query_formats().

◆ ff_set_common_all_alpha_modes2()

int ff_set_common_all_alpha_modes2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)

Definition at line 1131 of file formats.c.

◆ ff_set_common_formats2()

int ff_set_common_formats2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
AVFilterFormats *  formats 
)

Definition at line 1138 of file formats.c.

Referenced by asink_query_formats(), channelmap_query_formats(), ff_set_common_formats_from_list2(), ff_set_pixel_formats_from_list2(), ff_set_sample_formats_from_list2(), join_query_formats(), qrencode_query_formats(), qrencodesrc_query_formats(), query_format(), query_formats(), and vsink_query_formats().

◆ ff_set_common_formats_from_list2()

int ff_set_common_formats_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const int *  fmts 
)

Definition at line 1147 of file formats.c.

◆ ff_set_sample_formats_from_list2()

int ff_set_sample_formats_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const enum AVSampleFormat *  fmts 
)

Definition at line 1155 of file formats.c.

Referenced by aeval_query_formats(), asink_query_formats(), and query_formats().

◆ ff_set_pixel_formats_from_list2()

int ff_set_pixel_formats_from_list2 ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out,
const enum AVPixelFormat *  fmts 
)

Definition at line 1163 of file formats.c.

Referenced by ff_vaapi_vpp_query_formats(), geq_query_formats(), query_formats(), and vsink_query_formats().

◆ ff_default_query_formats()

int ff_default_query_formats ( AVFilterContext *  ctx)

Sets all remaining unset filter lists for all inputs/outputs to their corresponding ff_all_*() lists.

Definition at line 1171 of file formats.c.

Referenced by filter_query_formats(), and main().

◆ check_list()

static int check_list ( void *  log,
const char *  name,
const AVFilterFormats *  fmts 
)
static

Definition at line 1234 of file formats.c.

Referenced by ff_formats_check_alpha_modes(), ff_formats_check_color_ranges(), ff_formats_check_color_spaces(), ff_formats_check_pixel_formats(), ff_formats_check_sample_formats(), and ff_formats_check_sample_rates().

◆ ff_formats_check_pixel_formats()

int ff_formats_check_pixel_formats ( void *  log,
const AVFilterFormats *  fmts 
)

Check that fmts is a valid pixel formats list.

In particular, check for duplicates.

Definition at line 1255 of file formats.c.

Referenced by filter_link_check_formats().

◆ ff_formats_check_sample_formats()

int ff_formats_check_sample_formats ( void *  log,
const AVFilterFormats *  fmts 
)

Check that fmts is a valid sample formats list.

In particular, check for duplicates.

Definition at line 1260 of file formats.c.

Referenced by filter_link_check_formats().

◆ ff_formats_check_sample_rates()

int ff_formats_check_sample_rates ( void *  log,
const AVFilterFormats *  fmts 
)

Check that fmts is a valid sample rates list.

In particular, check for duplicates.

Definition at line 1265 of file formats.c.

Referenced by filter_link_check_formats().

◆ ff_formats_check_color_spaces()

int ff_formats_check_color_spaces ( void *  log,
const AVFilterFormats *  fmts 
)

Check that fmts is a valid formats list for YUV colorspace metadata.

In particular, check for duplicates.

Definition at line 1272 of file formats.c.

Referenced by filter_link_check_formats().

◆ ff_formats_check_color_ranges()

int ff_formats_check_color_ranges ( void *  log,
const AVFilterFormats *  fmts 
)

Definition at line 1283 of file formats.c.

Referenced by filter_link_check_formats().

◆ ff_formats_check_alpha_modes()

int ff_formats_check_alpha_modes ( void *  log,
const AVFilterFormats *  fmts 
)

Check that fmts is a valid formats list for alpha modes.

In particular, check for duplicates.

Definition at line 1288 of file formats.c.

Referenced by filter_link_check_formats().

◆ layouts_compatible()

static int layouts_compatible ( const AVChannelLayout *  a,
const AVChannelLayout *  b 
)
static

Definition at line 1293 of file formats.c.

Referenced by ff_formats_check_channel_layouts().

◆ ff_formats_check_channel_layouts()

int ff_formats_check_channel_layouts ( void *  log,
const AVFilterChannelLayouts *  fmts 
)

Check that fmts is a valid channel layouts list.

In particular, check for duplicates.

Definition at line 1300 of file formats.c.

Referenced by filter_link_check_formats().

Variable Documentation

◆ mergers_video

const AVFilterFormatsMerger mergers_video[]
static

Definition at line 389 of file formats.c.

◆ mergers_audio

const AVFilterFormatsMerger mergers_audio[]
static
Initial value:
= {
{
.name = "Channel layouts",
.offset = 0x42,
.merge = merge_channel_layouts,
.can_merge = can_merge_channel_layouts,
.print_list = print_channel_layout_desc,
CONVERSION_FILTER_ARESAMPLE
},
{
.name = "Sample rates",
.offset = 0x42,
.merge = merge_samplerates,
.can_merge = can_merge_samplerates,
.print_list = print_sample_rate,
CONVERSION_FILTER_ARESAMPLE
},
{
.name = "Sample formats",
.offset = 0x42,
.merge = merge_sample_fmts,
.can_merge = can_merge_sample_fmts,
.print_list = print_get_sample_fmt_name,
CONVERSION_FILTER_ARESAMPLE
},
}

Definition at line 424 of file formats.c.

◆ negotiate_video

const AVFilterNegotiation negotiate_video
static
Initial value:
= {
.nb_mergers = FF_ARRAY_ELEMS(mergers_video),
.mergers = mergers_video,
}

Definition at line 451 of file formats.c.

Referenced by ff_filter_get_negotiation().

◆ negotiate_audio

const AVFilterNegotiation negotiate_audio
static
Initial value:
= {
.nb_mergers = FF_ARRAY_ELEMS(mergers_audio),
.mergers = mergers_audio,
}

Definition at line 456 of file formats.c.

Referenced by ff_filter_get_negotiation().

formats
formats
Definition: signature.h:47
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
FIND_REF_INDEX
#define FIND_REF_INDEX(ref, idx)
Definition: formats.c:762
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
can_merge_sample_fmts
static int can_merge_sample_fmts(const void *a, const void *b)
See can_merge_pix_fmts().
Definition: formats.c:169
can_merge_channel_layouts
static int can_merge_channel_layouts(const void *a, const void *b)
Definition: formats.c:313
mergers_video
static const AVFilterFormatsMerger mergers_video[]
Definition: formats.c:389
CONVERSION_FILTER_ARESAMPLE
#define CONVERSION_FILTER_ARESAMPLE
Definition: formats.c:385
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
type
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 type
Definition: writing_filters.txt:86
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_realloc_array
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:217
ctx
AVFormatContext * ctx
Definition: movenc.c:49
av_mallocz
#define av_mallocz(s)
Definition: tableprint_vlc.h:31
tmp
static uint8_t tmp[40]
Definition: aes_ctr.c:52
link
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 link
Definition: filter_design.txt:23
if
if(ret)
Definition: filter_design.txt:179
NULL
#define NULL
Definition: coverity.c:32
print_sample_rate
static void print_sample_rate(AVBPrint *bp, const void *ratesp)
Definition: formats.c:374
list
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 list
Definition: filter_design.txt:25
AVFilterGraph
Definition: avfilter.h:589
merge_samplerates
static int merge_samplerates(void *a, void *b)
See merge_pix_fmts().
Definition: formats.c:204
f
f
Definition: af_crystalizer.c:122
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:424
AVMEDIA_TYPE_UNKNOWN
@ AVMEDIA_TYPE_UNKNOWN
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:199
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
mergers_audio
static const AVFilterFormatsMerger mergers_audio[]
Definition: formats.c:424
merge_channel_layouts
static int merge_channel_layouts(void *a, void *b)
Definition: formats.c:319
ret
ret
Definition: filter_design.txt:187
av_channel_layout_uninit
void av_channel_layout_uninit(AVChannelLayout *channel_layout)
Free any allocated data in the channel layout and reset the channel count to 0.
Definition: channel_layout.c:442
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:117
can_merge_samplerates
static int can_merge_samplerates(const void *a, const void *b)
See can_merge_pix_fmts().
Definition: formats.c:196
av_channel_layout_copy
int av_channel_layout_copy(AVChannelLayout *dst, const AVChannelLayout *src)
Make a copy of a channel layout.
Definition: channel_layout.c:449
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
print_channel_layout_desc
static void print_channel_layout_desc(AVBPrint *bp, const void *layoutsp)
Definition: formats.c:365
merge_sample_fmts
static int merge_sample_fmts(void *a, void *b)
See merge_pix_fmts().
Definition: formats.c:178
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