22 #ifndef LIBAV_CMDUTILS_H
23 #define LIBAV_CMDUTILS_H
77 int opt_cpuflags(
void *optctx,
const char *opt,
const char *arg);
83 int opt_default(
void *optctx,
const char *opt,
const char *arg);
88 int opt_loglevel(
void *optctx,
const char *opt,
const char *arg);
93 int opt_timelimit(
void *optctx,
const char *opt,
const char *arg);
109 double min,
double max);
142 #define HAS_ARG 0x0001
143 #define OPT_BOOL 0x0002
144 #define OPT_EXPERT 0x0004
145 #define OPT_STRING 0x0008
146 #define OPT_VIDEO 0x0010
147 #define OPT_AUDIO 0x0020
148 #define OPT_INT 0x0080
149 #define OPT_FLOAT 0x0100
150 #define OPT_SUBTITLE 0x0200
151 #define OPT_INT64 0x0400
152 #define OPT_EXIT 0x0800
153 #define OPT_DATA 0x1000
154 #define OPT_PERFILE 0x2000
156 #define OPT_OFFSET 0x4000
157 #define OPT_SPEC 0x8000
160 #define OPT_TIME 0x10000
161 #define OPT_DOUBLE 0x20000
162 #define OPT_INPUT 0x40000
163 #define OPT_OUTPUT 0x80000
166 int (*
func_arg)(
void *,
const char *,
const char *);
183 int rej_flags,
int alt_flags);
200 int show_help(
void *optctx,
const char *opt,
const char *arg);
215 void (* parse_arg_function)(
void *optctx,
const char*));
222 int parse_option(
void *optctx,
const char *opt,
const char *arg,
328 const char *optname);
395 int show_version(
void *optctx,
const char *opt,
const char *arg);
401 int show_license(
void *optctx,
const char *opt,
const char *arg);
407 int show_formats(
void *optctx,
const char *opt,
const char *arg);
413 int show_codecs(
void *optctx,
const char *opt,
const char *arg);
419 int show_decoders(
void *optctx,
const char *opt,
const char *arg);
425 int show_encoders(
void *optctx,
const char *opt,
const char *arg);
431 int show_filters(
void *optctx,
const char *opt,
const char *arg);
437 int show_bsfs(
void *optctx,
const char *opt,
const char *arg);
443 int show_protocols(
void *optctx,
const char *opt,
const char *arg);
449 int show_pix_fmts(
void *optctx,
const char *opt,
const char *arg);
518 const char *preset_name,
int is_path,
const char *codec_name);
530 void *
grow_array(
void *array,
int elem_size,
int *
size,
int new_size);
537 #define GROW_ARRAY(array, nb_elems)\
538 array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)
540 #define GET_PIX_FMT_NAME(pix_fmt)\
541 const char *name = av_get_pix_fmt_name(pix_fmt);
543 #define GET_SAMPLE_FMT_NAME(sample_fmt)\
544 const char *name = av_get_sample_fmt_name(sample_fmt)
546 #define GET_SAMPLE_RATE_NAME(rate)\
548 snprintf(name, sizeof(name), "%d", rate);
550 #define GET_CH_LAYOUT_NAME(ch_layout)\
552 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
554 #define GET_CH_LAYOUT_DESC(ch_layout)\
556 av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);
int64_t num_faulty_dts
Number of incorrect PTS values so far.
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.
int show_bsfs(void *optctx, const char *opt, const char *arg)
Print a listing containing all the bit stream filters supported by the program.
AVDictionary * resample_opts
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
Print a listing containing all the pixel formats supported by the program.
const char * name
< group name
int parse_optgroup(void *optctx, OptionGroup *g)
Parse an options group and write results into optctx.
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
Check if the given stream matches a stream specifier.
void uninit_parse_context(OptionParseContext *octx)
Free all allocated memory in an OptionParseContext.
int(* func_arg)(void *, const char *, const char *)
Main libavfilter public API header.
AVCodecContext * avcodec_opts[AVMEDIA_TYPE_NB]
const char * sep
Option to be used as group separator.
int64_t last_pts
Number of incorrect DTS values so far.
int show_decoders(void *optctx, const char *opt, const char *arg)
Print a listing containing all the decoders supported by the program.
void register_exit(void(*cb)(int ret))
Register a program-specific cleanup routine.
AVDictionary * format_opts
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.
int opt_timelimit(void *optctx, const char *opt, const char *arg)
Limit the execution time.
int show_protocols(void *optctx, const char *opt, const char *arg)
Print a listing containing all the protocols supported by the program.
void parse_loglevel(int argc, char **argv, const OptionDef *options)
Find the '-loglevel' option in the command line args and apply it.
external api for the swscale stuff
void uninit_opts(void)
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents...
const OptionDef options[]
int flags
Option flags that must be set on each option that is applied to this group.
int show_license(void *optctx, const char *opt, const char *arg)
Print the license of the program to stdout.
AVCodecID
Identify the syntax and semantics of the bitstream.
struct SwsContext * sws_opts
void init_opts(void)
Initialize the cmdutils option system, in particular allocate the *_opts contexts.
const int program_birth_year
program birth year, defined by the program for show_banner()
AVDictionary ** setup_find_stream_info_opts(AVFormatContext *s, AVDictionary *codec_opts)
Setup AVCodecContext options for avformat_find_stream_info().
void init_pts_correction(PtsCorrectionContext *ctx)
Reset the state of the PtsCorrectionContext.
const OptionGroupDef * group_def
A list of option groups that all have the same group type (e.g.
const char * media_type_string(enum AVMediaType media_type)
Get a string describing a media type.
void show_help_default(const char *opt, const char *arg)
Per-avtool specific help handler.
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.
int parse_option(void *optctx, const char *opt, const char *arg, const OptionDef *options)
Parse one given option.
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...
char * specifier
stream/chapter/program/...
static const OptionGroupDef groups[]
void show_banner(void)
Print the program banner to stderr.
int opt_loglevel(void *optctx, const char *opt, const char *arg)
Set the libav* libraries log level.
int show_version(void *optctx, const char *opt, const char *arg)
Print the version of the program to stdout.
Libavcodec external API header.
int show_formats(void *optctx, const char *opt, const char *arg)
Print a listing containing all the formats supported by the program.
main external API structure.
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...
AVDictionary * codec_opts
AVDictionary * filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id, AVFormatContext *s, AVStream *st, AVCodec *codec)
Filter out options for given codec.
const OptionGroupDef * group_def
Describe the class of an AVClass context structure.
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
Read the file with name filename, and put its content in a newly allocated 0-terminated buffer...
int show_codecs(void *optctx, const char *opt, const char *arg)
Print a listing containing all the codecs supported by the program.
int64_t last_dts
PTS of the last frame.
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.
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.
void exit_program(int ret) av_noreturn
Wraps exit with a program-specific cleanup routine.
An option extracted from the commandline.
int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts)
Attempt to guess proper monotonic timestamps for decoded video frames which might have incorrect time...
AVDictionary * format_opts
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.
AVFormatContext * avformat_opts
void * grow_array(void *array, int elem_size, int *size, int new_size)
Realloc array to hold new_size elements of elem_size.
int show_encoders(void *optctx, const char *opt, const char *arg)
Print a listing containing all the encoders supported by the program.
void show_help_children(const AVClass *class, int flags)
Show help for all options with given flags in class and all its children.
int show_help(void *optctx, const char *opt, const char *arg)
Generic -h handler common to all avtools.
AVDictionary * resample_opts
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
Print a listing containing all the sample formats supported by the program.
AVDictionary * codec_opts
void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
Trivial log callback.
void print_error(const char *filename, int err)
Print an error message to stderr, indicating filename and a human readable description of the error c...
int show_filters(void *optctx, const char *opt, const char *arg)
Print a listing containing all the filters supported by the program.
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
Override the cpuflags mask.
struct SwsContext * sws_opts
int read_yesno(void)
Return a positive value if a line read from standard input starts with [yY], otherwise return 0...
const char program_name[]
program name, defined by the program for show_version().