#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <math.h>
#include "config.h"
#include "libavformat/avformat.h"
#include "libavfilter/avfilter.h"
#include "libavdevice/avdevice.h"
#include "libswscale/swscale.h"
#include "libavutil/avstring.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/eval.h"
#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "cmdutils.h"
#include "version.h"
Go to the source code of this file.
Defines | |
#define | FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0 |
#define | INDENT 1 |
#define | SHOW_VERSION 2 |
#define | SHOW_CONFIG 4 |
#define | PRINT_LIB_INFO(libname, LIBNAME, flags, level) |
#define | sws_isSupportedInput(x) 0 |
#define | sws_isSupportedOutput(x) 0 |
Functions | |
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. | |
void | log_callback_help (void *ptr, int level, const char *fmt, va_list vl) |
Trivial log callback. | |
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. | |
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. | |
void | show_help_options (const OptionDef *options, const char *msg, int mask, int value) |
void | show_help_children (const AVClass *class, int flags) |
Show help for all options with given flags in class and all its children. | |
static const OptionDef * | find_option (const OptionDef *po, const char *name) |
static void | prepare_app_arguments (int *argc_ptr, char ***argv_ptr) |
int | parse_option (void *optctx, const char *opt, const char *arg, const OptionDef *options) |
Parse one given option. | |
void | parse_options (void *optctx, int argc, char **argv, const OptionDef *options, void(*parse_arg_function)(void *, const char *)) |
static int | locate_option (int argc, char **argv, const OptionDef *options, const char *optname) |
void | parse_loglevel (int argc, char **argv, const OptionDef *options) |
Find the '-loglevel' option in the command line args and apply it. | |
int | opt_default (const char *opt, const char *arg) |
Fallback for options that are not explicitly handled, these will be parsed through AVOptions. | |
int | opt_loglevel (const char *opt, const char *arg) |
Set the libav* libraries log level. | |
int | opt_timelimit (const char *opt, const char *arg) |
Limit the execution time. | |
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. | |
static void | print_all_libs_info (int flags, int level) |
void | show_banner (void) |
Print the program banner to stderr. | |
void | show_version (void) |
Print the version of the program to stdout. | |
void | show_license (void) |
Print the license of the program to stdout. | |
void | show_formats (void) |
Print a listing containing all the formats supported by the program. | |
void | show_codecs (void) |
Print a listing containing all the codecs supported by the program. | |
void | show_bsfs (void) |
Print a listing containing all the bit stream filters supported by the program. | |
void | show_protocols (void) |
Print a listing containing all the protocols supported by the program. | |
void | show_filters (void) |
Print a listing containing all the filters supported by the program. | |
void | show_pix_fmts (void) |
Print a listing containing all the pixel formats supported by the program. | |
int | show_sample_fmts (const char *opt, const char *arg) |
Print a listing containing all the sample formats supported by the program. | |
int | read_yesno (void) |
Return a positive value if a line read from standard input starts with [yY], otherwise return 0. | |
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. | |
void | init_pts_correction (PtsCorrectionContext *ctx) |
Reset the state of the PtsCorrectionContext. | |
int64_t | guess_correct_pts (PtsCorrectionContext *ctx, int64_t reordered_pts, int64_t dts) |
Attempt to guess proper monotonic timestamps for decoded video frames which might have incorrect times. | |
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 | check_stream_specifier (AVFormatContext *s, AVStream *st, const char *spec) |
Check if the given stream matches a stream specifier. | |
AVDictionary * | filter_codec_opts (AVDictionary *opts, enum CodecID codec_id, AVFormatContext *s, AVStream *st) |
Filter out options for given codec. | |
AVDictionary ** | setup_find_stream_info_opts (AVFormatContext *s, AVDictionary *codec_opts) |
Setup AVCodecContext options for avformat_find_stream_info(). | |
void * | grow_array (void *array, int elem_size, int *size, int new_size) |
Realloc array to hold new_size elements of elem_size. | |
Variables | |
struct SwsContext * | sws_opts |
AVDictionary * | format_opts |
AVDictionary * | codec_opts |
static const int | this_year = 2013 |
static int | warned_cfg = 1 |
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0 |
Definition at line 366 of file cmdutils.c.
Referenced by opt_default().
#define INDENT 1 |
Definition at line 464 of file cmdutils.c.
Referenced by show_banner().
if (CONFIG_##LIBNAME) { \ const char *indent = flags & INDENT? " " : ""; \ if (flags & SHOW_VERSION) { \ unsigned int version = libname##_version(); \ av_log(NULL, level, "%slib%-9s %2d.%3d.%2d / %2d.%3d.%2d\n",\ indent, #libname, \ LIB##LIBNAME##_VERSION_MAJOR, \ LIB##LIBNAME##_VERSION_MINOR, \ LIB##LIBNAME##_VERSION_MICRO, \ version >> 16, version >> 8 & 0xff, version & 0xff); \ } \ if (flags & SHOW_CONFIG) { \ const char *cfg = libname##_configuration(); \ if (strcmp(LIBAV_CONFIGURATION, cfg)) { \ if (!warned_cfg) { \ av_log(NULL, level, \ "%sWARNING: library configuration mismatch\n", \ indent); \ warned_cfg = 1; \ } \ av_log(NULL, level, "%s%-11s configuration: %s\n", \ indent, #libname, cfg); \ } \ } \ } \
Definition at line 468 of file cmdutils.c.
Referenced by print_all_libs_info().
#define SHOW_CONFIG 4 |
Definition at line 466 of file cmdutils.c.
Referenced by show_banner().
#define SHOW_VERSION 2 |
Definition at line 465 of file cmdutils.c.
Referenced by show_banner(), and show_version().
#define sws_isSupportedInput | ( | x | ) | 0 |
Referenced by query_formats(), selfTest(), show_pix_fmts(), sws_init_context(), and sws_isSupportedInput().
#define sws_isSupportedOutput | ( | x | ) | 0 |
Referenced by query_formats(), selfTest(), show_pix_fmts(), sws_init_context(), and sws_isSupportedOutput().
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 904 of file cmdutils.c.
Referenced by copy_metadata(), filter_codec_opts(), opt_input_file(), opt_map(), and opt_output_file().
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.
bufptr | location where pointer to buffer is returned | |
size | location where size of buffer is returned |
Definition at line 806 of file cmdutils.c.
Referenced by transcode(), and transcode_init().
AVDictionary* filter_codec_opts | ( | AVDictionary * | opts, | |
enum CodecID | codec_id, | |||
AVFormatContext * | s, | |||
AVStream * | st | |||
) |
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.
s | Corresponding format context. | |
st | A stream from s for which the options should be filtered. |
Definition at line 957 of file cmdutils.c.
Referenced by add_input_streams(), new_output_stream(), opt_input_file(), setup_find_stream_info_opts(), and stream_component_open().
Definition at line 150 of file cmdutils.c.
Referenced by locate_option(), and parse_option().
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.avpreset in the directories $AVCONV_DATADIR (if set), $HOME/.avconv, and in the datadir defined at configuration time, 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 871 of file cmdutils.c.
Referenced by avserver_opt_preset(), and opt_preset().
void* grow_array | ( | void * | array, | |
int | elem_size, | |||
int * | size, | |||
int | new_size | |||
) |
Realloc array to hold new_size elements of elem_size.
Calls exit_program() on failure.
elem_size | size in bytes of each element | |
size | new element count will be written here |
Definition at line 1100 of file cmdutils.c.
Referenced by add_input_streams(), new_output_stream(), opt_attach(), opt_input_file(), opt_input_ts_scale(), opt_map(), opt_map_chapters(), opt_map_metadata(), opt_output_file(), opt_streamid(), and parse_option().
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 times.
Input timestamps may wrap around, in which case the output will as well.
pts | the pts field of the decoded AVPacket, as passed through AVCodecContext.reordered_opaque | |
dts | the dts field of the decoded AVPacket |
Definition at line 849 of file cmdutils.c.
Referenced by get_video_frame(), output_packet(), and transcode_video().
void init_opts | ( | void | ) |
Initialize the cmdutils option system, in particular allocate the *_opts contexts.
Definition at line 60 of file cmdutils.c.
Referenced by main(), opt_input_file(), opt_output_file(), and reset_options().
void init_pts_correction | ( | PtsCorrectionContext * | ctx | ) |
Reset the state of the PtsCorrectionContext.
Definition at line 843 of file cmdutils.c.
Referenced by get_video_frame(), init_input_stream(), and transcode().
static int locate_option | ( | int | argc, | |
char ** | argv, | |||
const OptionDef * | options, | |||
const char * | optname | |||
) | [static] |
Definition at line 331 of file cmdutils.c.
Referenced by parse_loglevel().
void log_callback_help | ( | void * | ptr, | |
int | level, | |||
const char * | fmt, | |||
va_list | vl | |||
) |
Trivial log callback.
Only suitable for show_help and similar since it lacks prefix handling.
Definition at line 78 of file cmdutils.c.
Referenced by show_help(), and show_version().
int opt_default | ( | const char * | opt, | |
const char * | arg | |||
) |
Fallback for options that are not explicitly handled, these will be parsed through AVOptions.
Definition at line 367 of file cmdutils.c.
Referenced by opt_preset(), opt_target(), opt_video_channel(), and opt_video_standard().
int opt_loglevel | ( | const char * | opt, | |
const char * | arg | |||
) |
Set the libav* libraries log level.
Definition at line 402 of file cmdutils.c.
Referenced by parse_loglevel().
int opt_timelimit | ( | const char * | opt, | |
const char * | arg | |||
) |
Limit the execution time.
Definition at line 437 of file cmdutils.c.
void parse_loglevel | ( | int | argc, | |
char ** | argv, | |||
const OptionDef * | options | |||
) |
Find the '-loglevel' option in the command line args and apply it.
Definition at line 357 of file cmdutils.c.
Referenced by main().
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 83 of file cmdutils.c.
Referenced by opt_audio_channels(), opt_audio_rate(), opt_debug(), opt_height(), opt_me_threshold(), opt_pass(), opt_qscale(), opt_streamid(), opt_thread_count(), opt_timelimit(), opt_top_field_first(), opt_verbose(), opt_vismv(), opt_vsync(), opt_width(), and parse_option().
int parse_option | ( | void * | optctx, | |
const char * | opt, | |||
const char * | arg, | |||
const OptionDef * | options | |||
) |
Parse one given option.
Definition at line 224 of file cmdutils.c.
Referenced by opt_audio_codec(), opt_audio_frames(), opt_audio_qscale(), opt_audio_tag(), opt_data_codec(), opt_data_frames(), opt_subtitle_codec(), opt_subtitle_tag(), opt_target(), opt_video_codec(), opt_video_filters(), opt_video_frames(), opt_video_tag(), and parse_options().
void parse_options | ( | void * | optctx, | |
int | argc, | |||
char ** | argv, | |||
const OptionDef * | options, | |||
void(*)(void *, const char *) | parse_arg_function | |||
) |
Definition at line 297 of file cmdutils.c.
Referenced by main().
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 104 of file cmdutils.c.
Referenced by opt_duration(), opt_input_ts_offset(), opt_recording_time(), opt_recording_timestamp(), opt_seek(), opt_start_time(), parse_forced_key_frames(), and parse_option().
static void prepare_app_arguments | ( | int * | argc_ptr, | |
char *** | argv_ptr | |||
) | [inline, static] |
Definition at line 218 of file cmdutils.c.
Referenced by parse_options().
static void print_all_libs_info | ( | int | flags, | |
int | level | |||
) | [static] |
Definition at line 495 of file cmdutils.c.
Referenced by show_banner(), and show_version().
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 450 of file cmdutils.c.
Referenced by decode_thread(), open_input_file(), opt_input_file(), opt_output_file(), and write_frame().
int read_yesno | ( | void | ) |
Return a positive value if a line read from standard input starts with [yY], otherwise return 0.
Definition at line 795 of file cmdutils.c.
Referenced by assert_file_overwrite(), and opt_output_file().
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 1014 of file cmdutils.c.
Referenced by decode_thread(), and opt_input_file().
void show_banner | ( | void | ) |
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 508 of file cmdutils.c.
Referenced by main().
void show_bsfs | ( | void | ) |
Print a listing containing all the bit stream filters supported by the program.
Definition at line 719 of file cmdutils.c.
void show_codecs | ( | void | ) |
Print a listing containing all the codecs supported by the program.
Definition at line 642 of file cmdutils.c.
void show_filters | ( | void | ) |
Print a listing containing all the filters supported by the program.
Definition at line 743 of file cmdutils.c.
void show_formats | ( | void | ) |
Print a listing containing all the formats supported by the program.
Definition at line 595 of file cmdutils.c.
void show_help_children | ( | const AVClass * | class, | |
int | flags | |||
) |
Show help for all options with given flags in class and all its children.
Definition at line 140 of file cmdutils.c.
Referenced by show_help(), and show_help_children().
void show_help_options | ( | const OptionDef * | options, | |
const char * | msg, | |||
int | mask, | |||
int | value | |||
) |
Definition at line 116 of file cmdutils.c.
Referenced by show_help().
void show_license | ( | void | ) |
Print the license of the program to stdout.
The license depends on the license of the libraries compiled into the program.
Definition at line 526 of file cmdutils.c.
void show_pix_fmts | ( | void | ) |
Print a listing containing all the pixel formats supported by the program.
Definition at line 754 of file cmdutils.c.
Referenced by opt_frame_pix_fmt().
void show_protocols | ( | void | ) |
Print a listing containing all the protocols supported by the program.
Definition at line 729 of file cmdutils.c.
int show_sample_fmts | ( | const char * | opt, | |
const char * | arg | |||
) |
Print a listing containing all the sample formats supported by the program.
Definition at line 786 of file cmdutils.c.
void show_version | ( | void | ) |
Print the version of the program to stdout.
The version message depends on the current versions of the repository and of the libav* libraries.
Definition at line 520 of file cmdutils.c.
void uninit_opts | ( | void | ) |
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents.
Definition at line 68 of file cmdutils.c.
Referenced by do_exit(), exit_program(), opt_input_file(), opt_output_file(), and reset_options().
Definition at line 56 of file cmdutils.c.
Referenced by add_input_streams(), decode_thread(), new_output_stream(), opt_input_file(), and stream_component_open().
Definition at line 56 of file cmdutils.c.
Referenced by decode_thread(), main(), open_input_file(), opt_input_file(), and opt_output_file().
struct SwsContext* sws_opts |
Definition at line 55 of file cmdutils.c.
Referenced by new_output_stream(), and queue_picture().
const int this_year = 2013 [static] |
Definition at line 58 of file cmdutils.c.
Referenced by show_banner().
int warned_cfg = 1 [static] |
Definition at line 462 of file cmdutils.c.