#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"

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	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...

AVFilterFormats *	ff_make_format_list (const int *fmts)
	Create a list of supported formats. 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_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_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.

◆ 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 544 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 575 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 575 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 732 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 758 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 768 of file formats.c.

◆ FREE_LIST [1/2]

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

Definition at line 798 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 798 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 809 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 833 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 971 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

fmt	provided 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_format_list()

AVFilterFormats* ff_make_format_list ( const int * fmts )

Create a list of supported formats.

This is intended for use in AVFilter->query_formats().

Parameters

fmts	list of media formats, terminated by -1

Returns: the format list, with no existing references

Definition at line 499 of file formats.c.

Referenced by amf_setup_input_output_formats(), cudaupload_query_formats(), ff_default_query_formats(), ff_make_formats_list_singleton(), ff_set_common_alpha_modes_from_list(), ff_set_common_alpha_modes_from_list2(), ff_set_common_color_ranges_from_list(), ff_set_common_color_ranges_from_list2(), ff_set_common_color_spaces_from_list(), ff_set_common_color_spaces_from_list2(), ff_set_common_formats_from_list(), ff_set_common_formats_from_list2(), ff_set_common_samplerates_from_list(), ff_set_common_samplerates_from_list2(), hwupload_query_formats(), movie_query_formats(), overlay_qsv_query_formats(), query_format(), and query_formats().

◆ ff_make_channel_layout_list()

AVFilterChannelLayouts* ff_make_channel_layout_list ( const AVChannelLayout * fmts )

Definition at line 508 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 568 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 585 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 593 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 599 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 617 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 657 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 670 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 676 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 685 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 694 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 710 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 721 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 748 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 753 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 792 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 804 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 822 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 828 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 865 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 872 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 878 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 883 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 890 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 896 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 901 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 908 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 914 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 919 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 926 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 932 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 937 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 944 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 950 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 960 of file formats.c.

Referenced by ff_default_query_formats(), and ff_set_common_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 966 of file formats.c.

Referenced by query_formats().

◆ 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 1004 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 1013 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 1021 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 1028 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 1037 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 1045 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 1052 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 1061 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 1069 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 1076 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 1085 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 1093 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 1100 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 1109 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 1117 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 1124 of file formats.c.

Referenced by asink_query_formats(), channelmap_query_formats(), ff_set_common_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 1133 of file formats.c.

Referenced by aeval_query_formats(), asink_query_formats(), 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 1142 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 1205 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 1226 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 1231 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 1236 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 1243 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 1254 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 1259 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 1264 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 1271 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().

Macros

Functions

Variables

Macro Definition Documentation

◆ MERGE_REF

◆ MERGE_FORMATS

◆ PRINT_NAME

◆ CONVERSION_FILTER_SWSCALE

◆ CONVERSION_FILTER_ARESAMPLE

◆ MAKE_FORMAT_LIST

◆ ADD_FORMAT

◆ ASSIGN_FMT [1/2]

◆ ASSIGN_FMT [2/2]

◆ FORMATS_REF

◆ FIND_REF_INDEX

◆ FORMATS_UNREF

◆ FREE_LIST [1/2]

◆ FREE_LIST [2/2]

◆ FORMATS_CHANGEREF

◆ SET_COMMON_FORMATS

◆ SET_COMMON_FORMATS2

Function Documentation

◆ merge_formats_internal()

◆ can_merge_pix_fmts()

◆ merge_pix_fmts()

◆ can_merge_sample_fmts()

◆ merge_sample_fmts()

◆ merge_samplerates_internal()

◆ can_merge_samplerates()

◆ merge_samplerates()

◆ merge_channel_layouts_internal()

◆ can_merge_channel_layouts()

◆ merge_channel_layouts()

◆ merge_generic_internal()

◆ can_merge_generic()

◆ merge_generic()

◆ print_channel_layout_desc()

◆ print_sample_rate()

◆ ff_filter_get_negotiation()

◆ ff_fmt_is_in()

◆ ff_make_format_list()

◆ ff_make_channel_layout_list()

◆ ff_add_format()

◆ ff_add_channel_layout()

◆ ff_make_formats_list_singleton()

◆ ff_all_formats()

◆ ff_formats_pixdesc_filter()

◆ ff_planar_sample_fmts()

◆ ff_all_samplerates()

◆ ff_all_channel_layouts()

◆ ff_all_channel_counts()

◆ ff_all_color_spaces()

◆ ff_all_color_ranges()

◆ ff_all_alpha_modes()

◆ ff_channel_layouts_ref()

◆ ff_formats_ref()

◆ ff_formats_unref()

◆ ff_channel_layouts_unref()

◆ ff_channel_layouts_changeref()

◆ ff_formats_changeref()

◆ ff_set_common_channel_layouts()

◆ ff_set_common_channel_layouts_from_list()

◆ ff_set_common_all_channel_counts()

◆ ff_set_common_samplerates()

◆ ff_set_common_samplerates_from_list()

◆ ff_set_common_all_samplerates()

◆ ff_set_common_color_spaces()

◆ ff_set_common_color_spaces_from_list()

◆ ff_set_common_all_color_spaces()

◆ ff_set_common_color_ranges()

◆ ff_set_common_color_ranges_from_list()

◆ ff_set_common_all_color_ranges()

◆ ff_set_common_alpha_modes()

◆ ff_set_common_alpha_modes_from_list()

◆ ff_set_common_all_alpha_modes()

◆ ff_set_common_formats()

◆ ff_set_common_formats_from_list()

◆ ff_set_common_channel_layouts2()

◆ ff_set_common_channel_layouts_from_list2()

◆ ff_set_common_all_channel_counts2()