#include "libavutil/eval.h"#include "libavutil/pixdesc.h"#include "libavutil/audioconvert.h"#include "avfilter.h"#include "internal.h"#include "all_channel_layouts.h"Go to the source code of this file.
Defines | |
| #define | COPY_INT_LIST(list_copy, list, type) |
| #define | MAKE_FORMAT_LIST() |
Functions | |
| static void | merge_ref (AVFilterFormats *ret, AVFilterFormats *a) |
| Add all refs from a to ret and destroy a. | |
| AVFilterFormats * | avfilter_merge_formats (AVFilterFormats *a, AVFilterFormats *b) |
| Return a format list which contains the intersection of the formats of a and b. | |
| int | ff_fmt_is_in (int fmt, const int *fmts) |
| Tell is a format is contained in the provided list terminated by -1. | |
| int * | ff_copy_int_list (const int *const list) |
| Return a copy of a list of integers terminated by -1, or NULL in case of copy failure. | |
| int64_t * | ff_copy_int64_list (const int64_t *const list) |
| Return a copy of a list of 64-bit integers, or NULL in case of copy failure. | |
| AVFilterFormats * | avfilter_make_format_list (const int *fmts) |
| Create a list of supported formats. | |
| AVFilterFormats * | avfilter_make_format64_list (const int64_t *fmts) |
| int | avfilter_add_format (AVFilterFormats **avff, int64_t fmt) |
| Add fmt to the list of media formats contained in *avff. | |
| AVFilterFormats * | avfilter_all_formats (enum AVMediaType type) |
| AVFilterFormats * | avfilter_make_all_formats (enum AVMediaType type) |
| Return a list of all formats supported by FFmpeg for the given media type. | |
| AVFilterFormats * | avfilter_make_all_channel_layouts (void) |
| Return a list of all channel layouts supported by FFmpeg. | |
| AVFilterFormats * | avfilter_make_all_packing_formats (void) |
| Return a list of all audio packing formats. | |
| void | avfilter_formats_ref (AVFilterFormats *f, AVFilterFormats **ref) |
| Add *ref as a new reference to formats. | |
| static int | find_ref_index (AVFilterFormats **ref) |
| void | avfilter_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. | |
| void | avfilter_formats_changeref (AVFilterFormats **oldref, AVFilterFormats **newref) |
| Before After ________ ________ |formats |<---------. | |
| int | ff_parse_pixel_format (enum PixelFormat *ret, const char *arg, void *log_ctx) |
| Parse a pixel format. | |
| int | ff_parse_sample_format (int *ret, const char *arg, void *log_ctx) |
| Parse a sample format name or a corresponding integer representation. | |
| int | ff_parse_sample_rate (int *ret, const char *arg, void *log_ctx) |
| Parse a sample rate. | |
| int | ff_parse_channel_layout (int64_t *ret, const char *arg, void *log_ctx) |
| Parse a channel layout or a corresponding integer representation. | |
| int | ff_parse_packing_format (int *ret, const char *arg, void *log_ctx) |
| Parse a packing format or a corresponding integer representation. | |
Variables | |
| const int64_t | avfilter_all_channel_layouts [] |
| A list of all channel layouts supported by libavfilter. | |
| #define COPY_INT_LIST | ( | list_copy, | |||
| list, | |||||
| type | ) |
Value:
{ \
int count = 0; \
if (list) \
for (count = 0; list[count] != -1; count++) \
; \
list_copy = av_calloc(count+1, sizeof(type)); \
if (list_copy) { \
memcpy(list_copy, list, sizeof(type) * count); \
list_copy[count] = -1; \
} \
}
Definition at line 99 of file formats.c.
Referenced by ff_copy_int64_list(), and ff_copy_int_list().
| #define MAKE_FORMAT_LIST | ( | ) |
Value:
AVFilterFormats *formats; \ int count = 0; \ if (fmts) \ for (count = 0; fmts[count] != -1; count++) \ ; \ formats = av_mallocz(sizeof(AVFilterFormats)); \ if (!formats) return NULL; \ formats->format_count = count; \ if (count) { \ formats->formats = av_malloc(sizeof(*formats->formats)*count); \ if (!formats->formats) { \ av_free(formats); \ return NULL; \ } \ }
Definition at line 125 of file formats.c.
Referenced by avfilter_make_format64_list(), and avfilter_make_format_list().
| int avfilter_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.
Definition at line 160 of file formats.c.
Referenced by avfilter_make_all_formats(), and query_formats().
| AVFilterFormats* avfilter_all_formats | ( | enum AVMediaType | type | ) |
| void avfilter_formats_changeref | ( | AVFilterFormats ** | oldref, | |
| AVFilterFormats ** | newref | |||
| ) |
Before After ________ ________ |formats |<---------.
|formats |<---------. | ____ | ___|___ | ____ | ___|___ | |refs| | | | | | |refs| | | | | NULL | |* *--------->|*oldref| | |* *--------->|*newref| ^ | |* * | | |_______| | |* * | | |_______| ___|___ | |____| | | |____| | | | | |________| |________| |*oldref| |_______|
Definition at line 257 of file formats.c.
Referenced by avfilter_insert_filter().
| void avfilter_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 220 of file formats.c.
Referenced by query_formats(), and set_common_formats().
| void avfilter_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 236 of file formats.c.
Referenced by avfilter_free(), pick_format(), and query_formats().
| AVFilterFormats* avfilter_make_all_channel_layouts | ( | void | ) |
Return a list of all channel layouts supported by FFmpeg.
Definition at line 204 of file formats.c.
Referenced by avfilter_default_query_formats(), init(), and query_formats().
| AVFilterFormats* avfilter_make_all_formats | ( | enum AVMediaType | type | ) |
Return a list of all formats supported by FFmpeg for the given media type.
Definition at line 184 of file formats.c.
Referenced by avfilter_all_formats(), avfilter_default_query_formats(), init(), and query_formats().
| AVFilterFormats* avfilter_make_all_packing_formats | ( | void | ) |
Return a list of all audio packing formats.
Definition at line 209 of file formats.c.
Referenced by avfilter_default_query_formats(), init(), and query_formats().
| AVFilterFormats* avfilter_make_format64_list | ( | const int64_t * | fmts | ) |
Definition at line 151 of file formats.c.
Referenced by avfilter_make_all_channel_layouts(), and query_formats().
| AVFilterFormats* avfilter_make_format_list | ( | const int * | fmts | ) |
Create a list of supported formats.
This is intended for use in AVFilter->query_formats().
| fmts | list of media formats, terminated by -1. If NULL an empty list is created. |
Definition at line 142 of file formats.c.
Referenced by avfilter_make_all_packing_formats(), and query_formats().
| AVFilterFormats* avfilter_merge_formats | ( | AVFilterFormats * | a, | |
| AVFilterFormats * | b | |||
| ) |
Return a format list which contains the intersection of the formats of a and b.
Also, all the references of a, all the references of b, and a and b themselves will be deallocated.
If a and b do not share any common formats, neither is modified, and NULL is returned.
Definition at line 45 of file formats.c.
Referenced by insert_conv_filter(), and query_formats().
| int64_t* ff_copy_int64_list | ( | const int64_t *const | list | ) |
| int* ff_copy_int_list | ( | const int *const | list | ) |
| int ff_fmt_is_in | ( | int | fmt, | |
| const int * | fmts | |||
| ) |
Tell is a format is contained in the provided list terminated by -1.
Definition at line 88 of file formats.c.
Referenced by config_input_main(), config_input_overlay(), config_out_props(), and config_props().
| int ff_parse_channel_layout | ( | int64_t * | ret, | |
| const char * | arg, | |||
| void * | log_ctx | |||
| ) |
Parse a channel layout or a corresponding integer representation.
| ret | 64bit integer pointer to where the value should be written. | |
| arg | string to parse | |
| log_ctx | log context |
Definition at line 313 of file formats.c.
Referenced by init().
| int ff_parse_packing_format | ( | int * | ret, | |
| const char * | arg, | |||
| void * | log_ctx | |||
| ) |
Parse a packing format or a corresponding integer representation.
| ret | integer pointer to where the value should be written | |
| arg | string to parse | |
| log_ctx | log context |
Definition at line 328 of file formats.c.
Referenced by init().
| int ff_parse_pixel_format | ( | enum PixelFormat * | ret, | |
| const char * | arg, | |||
| void * | log_ctx | |||
| ) |
| int ff_parse_sample_format | ( | int * | ret, | |
| const char * | arg, | |||
| void * | log_ctx | |||
| ) |
Parse a sample format name or a corresponding integer representation.
| ret | integer pointer to where the value should be written | |
| arg | string to parse | |
| log_ctx | log context |
Definition at line 286 of file formats.c.
Referenced by init().
| int ff_parse_sample_rate | ( | int * | ret, | |
| const char * | arg, | |||
| void * | log_ctx | |||
| ) |
| static int find_ref_index | ( | AVFilterFormats ** | ref | ) | [static] |
Definition at line 227 of file formats.c.
Referenced by avfilter_formats_changeref(), and avfilter_formats_unref().
| static void merge_ref | ( | AVFilterFormats * | ret, | |
| AVFilterFormats * | a | |||
| ) | [static] |
Add all refs from a to ret and destroy a.
Definition at line 31 of file formats.c.
Referenced by avfilter_merge_formats().
| const int64_t avfilter_all_channel_layouts[] |
A list of all channel layouts supported by libavfilter.
Definition at line 199 of file formats.c.
Referenced by avfilter_make_all_channel_layouts(), and lavfi_read_header().
1.5.8