FFmpeg
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#include <stdint.h>
#include "config.h"
#include "libavcodec/avcodec.h"
#include "libavfilter/avfilter.h"
#include "libavformat/avformat.h"
#include "libswscale/swscale.h"
Go to the source code of this file.
Data Structures | |
struct | SpecifierOpt |
struct | OptionDef |
struct | Option |
An option extracted from the commandline. More... | |
struct | OptionGroupDef |
struct | OptionGroup |
struct | OptionGroupList |
A list of option groups that all have the same group type (e.g. More... | |
struct | OptionParseContext |
Macros | |
#define | HAS_ARG 0x0001 |
#define | OPT_BOOL 0x0002 |
#define | OPT_EXPERT 0x0004 |
#define | OPT_STRING 0x0008 |
#define | OPT_VIDEO 0x0010 |
#define | OPT_AUDIO 0x0020 |
#define | OPT_INT 0x0080 |
#define | OPT_FLOAT 0x0100 |
#define | OPT_SUBTITLE 0x0200 |
#define | OPT_INT64 0x0400 |
#define | OPT_EXIT 0x0800 |
#define | OPT_DATA 0x1000 |
#define | OPT_PERFILE |
#define | OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */ |
#define | OPT_SPEC |
#define | OPT_TIME 0x10000 |
#define | OPT_DOUBLE 0x20000 |
#define | OPT_INPUT 0x40000 |
#define | OPT_OUTPUT 0x80000 |
#define | CMDUTILS_COMMON_OPTIONS_AVDEVICE |
#define | CMDUTILS_COMMON_OPTIONS |
#define | media_type_string av_get_media_type_string |
#define | GROW_ARRAY(array, nb_elems) array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1) |
#define | ALLOC_ARRAY_ELEM(array, nb_elems) allocate_array_elem(&array, sizeof(*array[0]), &nb_elems) |
#define | GET_PIX_FMT_NAME(pix_fmt) const char *name = av_get_pix_fmt_name(pix_fmt); |
#define | GET_CODEC_NAME(id) const char *name = avcodec_descriptor_get(id)->name; |
#define | GET_SAMPLE_FMT_NAME(sample_fmt) const char *name = av_get_sample_fmt_name(sample_fmt) |
#define | GET_SAMPLE_RATE_NAME(rate) |
#define | GET_CH_LAYOUT_NAME(ch_layout) |
#define | GET_CH_LAYOUT_DESC(ch_layout) |
Functions | |
void | register_exit (void(*cb)(int ret)) |
Register a program-specific cleanup routine. More... | |
void | exit_program (int ret) av_noreturn |
Wraps exit with a program-specific cleanup routine. More... | |
void | init_dynload (void) |
Initialize dynamic library loading. More... | |
void | init_opts (void) |
Initialize the cmdutils option system, in particular allocate the *_opts contexts. More... | |
void | uninit_opts (void) |
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents. More... | |
void | log_callback_help (void *ptr, int level, const char *fmt, va_list vl) |
Trivial log callback. More... | |
int | opt_cpuflags (void *optctx, const char *opt, const char *arg) |
Override the cpuflags. More... | |
int | opt_cpucount (void *optctx, const char *opt, const char *arg) |
Override the cpucount. More... | |
int | opt_default (void *optctx, const char *opt, const char *arg) |
Fallback for options that are not explicitly handled, these will be parsed through AVOptions. More... | |
int | opt_loglevel (void *optctx, const char *opt, const char *arg) |
Set the libav* libraries log level. More... | |
int | opt_report (void *optctx, const char *opt, const char *arg) |
int | opt_max_alloc (void *optctx, const char *opt, const char *arg) |
int | opt_codec_debug (void *optctx, const char *opt, const char *arg) |
int | opt_timelimit (void *optctx, const char *opt, const char *arg) |
Limit the execution time. More... | |
double | parse_number_or_die (const char *context, const char *numstr, int type, double min, double max) |
Parse a string and return its corresponding value as a double. More... | |
int64_t | parse_time_or_die (const char *context, const char *timestr, int is_duration) |
Parse a string specifying a time and return its corresponding value as a number of microseconds. More... | |
void | show_help_options (const OptionDef *options, const char *msg, int req_flags, int rej_flags, int alt_flags) |
Print help for all options matching specified flags. More... | |
void | show_help_children (const AVClass *class, int flags) |
Show help for all options with given flags in class and all its children. More... | |
void | show_help_default (const char *opt, const char *arg) |
Per-fftool specific help handler. More... | |
int | show_help (void *optctx, const char *opt, const char *arg) |
Generic -h handler common to all fftools. More... | |
void | parse_options (void *optctx, int argc, char **argv, const OptionDef *options, void(*parse_arg_function)(void *optctx, const char *)) |
Parse the command line arguments. More... | |
int | parse_option (void *optctx, const char *opt, const char *arg, const OptionDef *options) |
Parse one given option. More... | |
int | parse_optgroup (void *optctx, OptionGroup *g) |
Parse an options group and write results into optctx. More... | |
int | split_commandline (OptionParseContext *octx, int argc, char *argv[], const OptionDef *options, const OptionGroupDef *groups, int nb_groups) |
Split the commandline into an intermediate form convenient for further processing. More... | |
void | uninit_parse_context (OptionParseContext *octx) |
Free all allocated memory in an OptionParseContext. More... | |
void | parse_loglevel (int argc, char **argv, const OptionDef *options) |
Find the '-loglevel' option in the command line args and apply it. More... | |
int | locate_option (int argc, char **argv, const OptionDef *options, const char *optname) |
Return index of option opt in argv or 0 if not found. More... | |
int | check_stream_specifier (AVFormatContext *s, AVStream *st, const char *spec) |
Check if the given stream matches a stream specifier. More... | |
AVDictionary * | filter_codec_opts (AVDictionary *opts, enum AVCodecID codec_id, AVFormatContext *s, AVStream *st, const AVCodec *codec) |
Filter out options for given codec. More... | |
AVDictionary ** | setup_find_stream_info_opts (AVFormatContext *s, AVDictionary *codec_opts) |
Setup AVCodecContext options for avformat_find_stream_info(). More... | |
void | print_error (const char *filename, int err) |
Print an error message to stderr, indicating filename and a human readable description of the error code err. More... | |
void | show_banner (int argc, char **argv, const OptionDef *options) |
Print the program banner to stderr. More... | |
int | show_version (void *optctx, const char *opt, const char *arg) |
Print the version of the program to stdout. More... | |
int | show_buildconf (void *optctx, const char *opt, const char *arg) |
Print the build configuration of the program to stdout. More... | |
int | show_license (void *optctx, const char *opt, const char *arg) |
Print the license of the program to stdout. More... | |
int | show_formats (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the formats supported by the program (including devices). More... | |
int | show_muxers (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the muxers supported by the program (including devices). More... | |
int | show_demuxers (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the demuxer supported by the program (including devices). More... | |
int | show_devices (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the devices supported by the program. More... | |
int | show_codecs (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the codecs supported by the program. More... | |
int | show_decoders (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the decoders supported by the program. More... | |
int | show_encoders (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the encoders supported by the program. More... | |
int | show_filters (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the filters supported by the program. More... | |
int | show_bsfs (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the bit stream filters supported by the program. More... | |
int | show_protocols (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the protocols supported by the program. More... | |
int | show_pix_fmts (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the pixel formats supported by the program. More... | |
int | show_layouts (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the standard channel layouts supported by the program. More... | |
int | show_sample_fmts (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the sample formats supported by the program. More... | |
int | show_dispositions (void *optctx, const char *opt, const char *arg) |
Print a listing containing all supported stream dispositions. More... | |
int | show_colors (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the color names and values recognized by the program. More... | |
int | read_yesno (void) |
Return a positive value if a line read from standard input starts with [yY], otherwise return 0. More... | |
FILE * | get_preset_file (char *filename, size_t filename_size, const char *preset_name, int is_path, const char *codec_name) |
Get a file corresponding to a preset file. More... | |
void * | grow_array (void *array, int elem_size, int *size, int new_size) |
Realloc array to hold new_size elements of elem_size. More... | |
void * | allocate_array_elem (void *array, size_t elem_size, int *nb_elems) |
Atomically add a new element to an array of pointers, i.e. More... | |
double | get_rotation (int32_t *displaymatrix) |
Variables | |
const char | program_name [] |
program name, defined by the program for show_version(). More... | |
const int | program_birth_year |
program birth year, defined by the program for show_banner() More... | |
AVCodecContext * | avcodec_opts [AVMEDIA_TYPE_NB] |
AVFormatContext * | avformat_opts |
AVDictionary * | sws_dict |
AVDictionary * | swr_opts |
AVDictionary * | format_opts |
AVDictionary * | codec_opts |
int | hide_banner |
#define HAS_ARG 0x0001 |
Definition at line 166 of file cmdutils.h.
#define OPT_BOOL 0x0002 |
Definition at line 167 of file cmdutils.h.
#define OPT_EXPERT 0x0004 |
Definition at line 168 of file cmdutils.h.
#define OPT_STRING 0x0008 |
Definition at line 169 of file cmdutils.h.
#define OPT_VIDEO 0x0010 |
Definition at line 170 of file cmdutils.h.
#define OPT_AUDIO 0x0020 |
Definition at line 171 of file cmdutils.h.
#define OPT_INT 0x0080 |
Definition at line 172 of file cmdutils.h.
#define OPT_FLOAT 0x0100 |
Definition at line 173 of file cmdutils.h.
#define OPT_SUBTITLE 0x0200 |
Definition at line 174 of file cmdutils.h.
#define OPT_INT64 0x0400 |
Definition at line 175 of file cmdutils.h.
#define OPT_EXIT 0x0800 |
Definition at line 176 of file cmdutils.h.
#define OPT_DATA 0x1000 |
Definition at line 177 of file cmdutils.h.
#define OPT_PERFILE |
Definition at line 178 of file cmdutils.h.
Definition at line 179 of file cmdutils.h.
#define OPT_SPEC |
Definition at line 180 of file cmdutils.h.
#define OPT_TIME 0x10000 |
Definition at line 181 of file cmdutils.h.
#define OPT_DOUBLE 0x20000 |
Definition at line 182 of file cmdutils.h.
#define OPT_INPUT 0x40000 |
Definition at line 183 of file cmdutils.h.
#define OPT_OUTPUT 0x80000 |
Definition at line 184 of file cmdutils.h.
#define CMDUTILS_COMMON_OPTIONS_AVDEVICE |
Definition at line 214 of file cmdutils.h.
#define CMDUTILS_COMMON_OPTIONS |
Definition at line 217 of file cmdutils.h.
#define media_type_string av_get_media_type_string |
Definition at line 642 of file cmdutils.h.
#define GROW_ARRAY | ( | array, | |
nb_elems | |||
) | array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1) |
Definition at line 644 of file cmdutils.h.
#define ALLOC_ARRAY_ELEM | ( | array, | |
nb_elems | |||
) | allocate_array_elem(&array, sizeof(*array[0]), &nb_elems) |
Definition at line 647 of file cmdutils.h.
#define GET_PIX_FMT_NAME | ( | pix_fmt | ) | const char *name = av_get_pix_fmt_name(pix_fmt); |
Definition at line 650 of file cmdutils.h.
#define GET_CODEC_NAME | ( | id | ) | const char *name = avcodec_descriptor_get(id)->name; |
Definition at line 653 of file cmdutils.h.
#define GET_SAMPLE_FMT_NAME | ( | sample_fmt | ) | const char *name = av_get_sample_fmt_name(sample_fmt) |
Definition at line 656 of file cmdutils.h.
#define GET_SAMPLE_RATE_NAME | ( | rate | ) |
Definition at line 659 of file cmdutils.h.
#define GET_CH_LAYOUT_NAME | ( | ch_layout | ) |
Definition at line 663 of file cmdutils.h.
#define GET_CH_LAYOUT_DESC | ( | ch_layout | ) |
Definition at line 667 of file cmdutils.h.
Register a program-specific cleanup routine.
Definition at line 123 of file cmdutils.c.
Referenced by main().
void exit_program | ( | int | ret | ) |
Wraps exit with a program-specific cleanup routine.
Definition at line 128 of file cmdutils.c.
Referenced by abort_codec_experimental(), add_input_streams(), allocate_array_elem(), assert_avoptions(), assert_file_overwrite(), check_decode_result(), check_filter_outputs(), check_streamcopy_filters(), choose_pix_fmts(), configure_output_filter(), copy_metadata(), describe_filter_link(), do_audio_out(), do_streamcopy(), do_subtitle_out(), do_video_out(), do_video_stats(), dump_attachment(), filter_codec_opts(), find_codec_or_die(), flush_encoders(), get_codecs_sorted(), get_line(), get_ost_filters(), grow_array(), init_input_filter(), init_output_filter(), init_output_stream(), init_output_stream_streamcopy(), init_output_stream_wrapper(), init_parse_context(), init_report(), main(), new_audio_stream(), new_data_stream(), new_output_stream(), new_subtitle_stream(), new_unknown_stream(), new_video_stream(), open_input_file(), open_output_file(), opt_init_hw_device(), opt_input_file(), opt_loglevel(), opt_map(), opt_map_channel(), opt_max_alloc(), opt_preset(), opt_streamid(), opt_target(), opt_vstats(), output_packet(), parse_forced_key_frames(), parse_matrix_coeffs(), parse_meta_type(), parse_number_or_die(), parse_options(), parse_time_or_die(), print_sdp(), process_input(), process_input_packet(), set_encoder_id(), setup_find_stream_info_opts(), transcode(), transcode_subtitles(), write_option(), and write_packet().
void init_dynload | ( | void | ) |
Initialize dynamic library loading.
Definition at line 112 of file cmdutils.c.
Referenced by main().
void init_opts | ( | void | ) |
Initialize the cmdutils option system, in particular allocate the *_opts contexts.
void uninit_opts | ( | void | ) |
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents.
Definition at line 83 of file cmdutils.c.
Referenced by do_exit(), ffmpeg_cleanup(), main(), and uninit_parse_context().
void log_callback_help | ( | void * | ptr, |
int | level, | ||
const char * | fmt, | ||
va_list | vl | ||
) |
Trivial log callback.
Only suitable for opt_help and similar since it lacks prefix handling.
Definition at line 91 of file cmdutils.c.
Referenced by show_buildconf(), show_help(), show_help_default(), and show_version().
int opt_cpuflags | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Override the cpuflags.
Definition at line 834 of file cmdutils.c.
int opt_cpucount | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Override the cpucount.
Definition at line 846 of file cmdutils.c.
int opt_default | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Fallback for options that are not explicitly handled, these will be parsed through AVOptions.
Definition at line 536 of file cmdutils.c.
Referenced by opt_default_new(), opt_frame_pix_fmt(), opt_frame_size(), opt_target(), and split_commandline().
int opt_loglevel | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Set the libav* libraries log level.
Definition at line 872 of file cmdutils.c.
Referenced by parse_loglevel().
int opt_report | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Definition at line 1055 of file cmdutils.c.
int opt_max_alloc | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Definition at line 1060 of file cmdutils.c.
int opt_codec_debug | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
int opt_timelimit | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Limit the execution time.
Definition at line 1074 of file cmdutils.c.
double parse_number_or_die | ( | const char * | context, |
const char * | numstr, | ||
int | type, | ||
double | min, | ||
double | max | ||
) |
Parse a string and return its corresponding value as a double.
Exit from the application if the string cannot be correctly parsed or the corresponding value is invalid.
context | the context of the value to be set (e.g. the corresponding command line option name) |
numstr | the string to be parsed |
type | the type (OPT_INT64 or OPT_FLOAT) as which the string should be parsed |
min | the minimum valid accepted value |
max | the maximum valid accepted value |
Definition at line 136 of file cmdutils.c.
Referenced by opt_height(), opt_show_mode(), opt_show_optional_fields(), opt_streamid(), opt_timelimit(), opt_vsync(), opt_width(), and write_option().
int64_t parse_time_or_die | ( | const char * | context, |
const char * | timestr, | ||
int | is_duration | ||
) |
Parse a string specifying a time and return its corresponding value as a number of microseconds.
Exit from the application if the string cannot be correctly parsed.
context | the context of the value to be set (e.g. the corresponding command line option name) |
timestr | the string to be parsed |
is_duration | a flag which tells how to interpret timestr, if not zero timestr is interpreted as a duration, otherwise as a date |
Definition at line 157 of file cmdutils.c.
Referenced by opt_duration(), opt_recording_timestamp(), opt_seek(), opt_stats_period(), parse_forced_key_frames(), and write_option().
void show_help_options | ( | const OptionDef * | options, |
const char * | msg, | ||
int | req_flags, | ||
int | rej_flags, | ||
int | alt_flags | ||
) |
Print help for all options matching specified flags.
options | a list of options |
msg | title of this group. Only printed if at least one option matches. |
req_flags | print only options which have all those flags set. |
rej_flags | don't print options which have any of those flags set. |
alt_flags | print only options that have at least one of those flags set |
Definition at line 169 of file cmdutils.c.
Referenced by show_help_default().
Show help for all options with given flags in class and all its children.
Definition at line 198 of file cmdutils.c.
Referenced by print_codec(), show_help_bsf(), show_help_children(), show_help_default(), show_help_demuxer(), show_help_muxer(), and show_help_protocol().
void show_help_default | ( | const char * | opt, |
const char * | arg | ||
) |
Per-fftool specific help handler.
Implemented in each fftool, called by show_help().
Definition at line 3313 of file ffmpeg_opt.c.
Referenced by show_help().
int show_help | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Generic -h handler common to all fftools.
Definition at line 2013 of file cmdutils.c.
void parse_options | ( | void * | optctx, |
int | argc, | ||
char ** | argv, | ||
const OptionDef * | options, | ||
void(*)(void *optctx, const char *) | parse_arg_function | ||
) |
Parse the command line arguments.
optctx | an opaque options context |
argc | number of command line arguments |
argv | values of command line arguments |
options | Array with the definitions required to interpret every option of the form: -option_name [argument] |
parse_arg_function | Name of the function called to process every argument without a leading option name flag. NULL if such arguments do not have to be processed. |
Parse one given option.
Definition at line 341 of file cmdutils.c.
Referenced by opt_audio_codec(), opt_audio_filters(), opt_audio_frames(), opt_audio_qscale(), opt_channel_layout(), opt_data_codec(), opt_data_frames(), opt_old2new(), opt_qscale(), opt_recording_timestamp(), opt_subtitle_codec(), opt_target(), opt_timecode(), opt_video_codec(), opt_video_filters(), opt_video_frames(), and parse_options().
int parse_optgroup | ( | void * | optctx, |
OptionGroup * | g | ||
) |
Parse an options group and write results into optctx.
optctx | an app-specific options context. NULL for global options group |
Definition at line 405 of file cmdutils.c.
int split_commandline | ( | OptionParseContext * | octx, |
int | argc, | ||
char * | argv[], | ||
const OptionDef * | options, | ||
const OptionGroupDef * | groups, | ||
int | nb_groups | ||
) |
Split the commandline into an intermediate form convenient for further processing.
The commandline is assumed to be composed of options which either belong to a group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global (everything else).
A group (defined by an OptionGroupDef struct) is a sequence of options terminated by either a group separator option (e.g. -i) or a parameter that is not an option (doesn't start with -). A group without a separator option must always be first in the supplied groups list.
All options within the same group are stored in one OptionGroup struct in an OptionGroupList, all groups with the same group definition are stored in one OptionGroupList in OptionParseContext.groups. The order of group lists is the same as the order of group definitions.
Definition at line 728 of file cmdutils.c.
void uninit_parse_context | ( | OptionParseContext * | octx | ) |
Free all allocated memory in an OptionParseContext.
Definition at line 703 of file cmdutils.c.
Find the '-loglevel' option in the command line args and apply it.
Definition at line 497 of file cmdutils.c.
Referenced by main().
Return index of option opt in argv or 0 if not found.
Definition at line 438 of file cmdutils.c.
Referenced by parse_loglevel(), and show_banner().
int check_stream_specifier | ( | AVFormatContext * | s, |
AVStream * | st, | ||
const char * | spec | ||
) |
Check if the given stream matches a stream specifier.
s | Corresponding format context. |
st | Stream from s to be checked. |
spec | A stream specifier of the [v|a|s|d]:[<stream index>] form. |
Definition at line 2112 of file cmdutils.c.
Referenced by copy_metadata(), filter_codec_opts(), init_input_filter(), open_input_file(), open_output_file(), and opt_map().
AVDictionary* filter_codec_opts | ( | AVDictionary * | opts, |
enum AVCodecID | codec_id, | ||
AVFormatContext * | s, | ||
AVStream * | st, | ||
const AVCodec * | codec | ||
) |
Filter out options for given codec.
Create a new options dictionary containing only the options from opts which apply to the codec with ID codec_id.
opts | dictionary to place options in |
codec_id | ID of the codec that should be filtered for |
s | Corresponding format context. |
st | A stream from s for which the options should be filtered. |
codec | The particular codec for which the options should be filtered. If null, the default one is looked up according to the codec id. |
Definition at line 2120 of file cmdutils.c.
Referenced by add_input_streams(), new_output_stream(), open_input_file(), setup_find_stream_info_opts(), and stream_component_open().
AVDictionary** setup_find_stream_info_opts | ( | AVFormatContext * | s, |
AVDictionary * | codec_opts | ||
) |
Setup AVCodecContext options for avformat_find_stream_info().
Create an array of dictionaries, one dictionary for each stream contained in s. Each dictionary will contain the options from codec_opts which can be applied to the corresponding stream codec context.
Definition at line 2178 of file cmdutils.c.
Referenced by open_input_file(), and read_thread().
void print_error | ( | const char * | filename, |
int | err | ||
) |
Print an error message to stderr, indicating filename and a human readable description of the error code err.
If strerror_r() is not available the use of this function in a multithreaded application may be unsafe.
Definition at line 1087 of file cmdutils.c.
Referenced by open_input_file(), open_output_file(), process_input(), read_thread(), and write_packet().
Print the program banner to stderr.
The banner contents depend on the current version of the repository and of the libav* libraries used by the program.
Definition at line 1185 of file cmdutils.c.
Referenced by main().
int show_version | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print the version of the program to stdout.
The version message depends on the current versions of the repository and of the libav* libraries. This option processing function does not utilize the arguments.
Definition at line 1196 of file cmdutils.c.
int show_buildconf | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print the build configuration of the program to stdout.
The contents depend on the definition of FFMPEG_CONFIGURATION. This option processing function does not utilize the arguments.
Definition at line 1205 of file cmdutils.c.
int show_license | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print the license of the program to stdout.
The license depends on the license of the libraries compiled into the program. This option processing function does not utilize the arguments.
Definition at line 1213 of file cmdutils.c.
int show_formats | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the formats supported by the program (including devices).
This option processing function does not utilize the arguments.
Definition at line 1357 of file cmdutils.c.
int show_muxers | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the muxers supported by the program (including devices).
This option processing function does not utilize the arguments.
Definition at line 1362 of file cmdutils.c.
int show_demuxers | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the demuxer supported by the program (including devices).
This option processing function does not utilize the arguments.
Definition at line 1367 of file cmdutils.c.
int show_devices | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the devices supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1372 of file cmdutils.c.
int show_codecs | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the codecs supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1550 of file cmdutils.c.
int show_decoders | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the decoders supported by the program.
Definition at line 1645 of file cmdutils.c.
int show_encoders | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the encoders supported by the program.
Definition at line 1651 of file cmdutils.c.
int show_filters | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the filters supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1684 of file cmdutils.c.
int show_bsfs | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the bit stream filters supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1657 of file cmdutils.c.
int show_protocols | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the protocols supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1669 of file cmdutils.c.
int show_pix_fmts | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the pixel formats supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1747 of file cmdutils.c.
int show_layouts | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the standard channel layouts supported by the program.
This option processing function does not utilize the arguments.
Definition at line 1785 of file cmdutils.c.
int show_sample_fmts | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the sample formats supported by the program.
Definition at line 1814 of file cmdutils.c.
int show_dispositions | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all supported stream dispositions.
Definition at line 1823 of file cmdutils.c.
int show_colors | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Print a listing containing all the color names and values recognized by the program.
Definition at line 1733 of file cmdutils.c.
int read_yesno | ( | void | ) |
Return a positive value if a line read from standard input starts with [yY], otherwise return 0.
Definition at line 2051 of file cmdutils.c.
Referenced by assert_file_overwrite().
FILE* get_preset_file | ( | char * | filename, |
size_t | filename_size, | ||
const char * | preset_name, | ||
int | is_path, | ||
const char * | codec_name | ||
) |
Get a file corresponding to a preset file.
If is_path is non-zero, look for the file in the path preset_name. Otherwise search for a file named arg.ffpreset in the directories $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined at configuration time or in a "ffpresets" folder along the executable on win32, in that order. If no such file is found and codec_name is defined, then search for a file named codec_name-preset_name.avpreset in the above-mentioned directories.
filename | buffer where the name of the found filename is written |
filename_size | size in bytes of the filename buffer |
preset_name | name of the preset to search |
is_path | tell if preset_name is a filename path |
codec_name | name of the codec for which to look for the preset, may be NULL |
Definition at line 2062 of file cmdutils.c.
Referenced by opt_preset().
Realloc array to hold new_size elements of elem_size.
Calls exit() on failure.
array | array to reallocate |
elem_size | size in bytes of each element |
size | new element count will be written here |
new_size | number of elements to place in reallocated array |
Definition at line 2198 of file cmdutils.c.
Referenced by opt_streamid(), and write_option().
void* allocate_array_elem | ( | void * | array, |
size_t | elem_size, | ||
int * | nb_elems | ||
) |
Atomically add a new element to an array of pointers, i.e.
allocate a new entry, reallocate the array of pointers and make the new last member of this array point to the newly allocated buffer. Calls exit() on failure.
array | array of pointers to reallocate |
elem_size | size of the new element to allocate |
nb_elems | pointer to the number of elements of the array array; *nb_elems will be incremented by one by this function. |
Definition at line 2217 of file cmdutils.c.
double get_rotation | ( | int32_t * | displaymatrix | ) |
Definition at line 2229 of file cmdutils.c.
Referenced by configure_input_video_filter().
const char program_name[] |
program name, defined by the program for show_version().
Definition at line 109 of file ffmpeg.c.
Referenced by expand_filename_template(), init_report(), main(), print_program_info(), show_help_default(), show_license(), show_usage(), and usage().
const int program_birth_year |
program birth year, defined by the program for show_banner()
Definition at line 110 of file ffmpeg.c.
Referenced by ffprobe_show_program_version(), and print_program_info().
AVCodecContext* avcodec_opts[AVMEDIA_TYPE_NB] |
AVFormatContext* avformat_opts |
AVDictionary* sws_dict |
Definition at line 69 of file cmdutils.c.
Referenced by finish_group(), opt_default(), and uninit_opts().
AVDictionary* swr_opts |
Definition at line 70 of file cmdutils.c.
Referenced by finish_group(), opt_default(), and uninit_opts().
AVDictionary* format_opts |
Definition at line 71 of file cmdutils.c.
Referenced by finish_group(), main(), open_input_file(), opt_default(), opt_default_new(), opt_target(), read_thread(), split_commandline(), and uninit_opts().
AVDictionary * codec_opts |
Definition at line 51 of file cmdutils.h.
int hide_banner |
Definition at line 75 of file cmdutils.c.
Referenced by parse_loglevel(), and show_banner().