Libav
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#include <stdint.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 |
struct | PtsCorrectionContext |
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 | GROW_ARRAY(array, nb_elems) array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1) |
#define | GET_PIX_FMT_NAME(pix_fmt) const char *name = av_get_pix_fmt_name(pix_fmt); |
#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_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 mask. 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_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-avtool specific help handler. More... | |
int | show_help (void *optctx, const char *opt, const char *arg) |
Generic -h handler common to all avtools. 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, 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 (void) |
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_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. 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_sample_fmts (void *optctx, const char *opt, const char *arg) |
Print a listing containing all the sample formats supported 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... | |
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. More... | |
void | init_pts_correction (PtsCorrectionContext *ctx) |
Reset the state of the PtsCorrectionContext. More... | |
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. 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... | |
const char * | media_type_string (enum AVMediaType media_type) |
Get a string describing a media type. More... | |
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 |
struct SwsContext * | sws_opts |
AVDictionary * | format_opts |
AVDictionary * | codec_opts |
AVDictionary * | resample_opts |
#define HAS_ARG 0x0001 |
Definition at line 142 of file cmdutils.h.
Referenced by locate_option(), parse_option(), and split_commandline().
#define OPT_BOOL 0x0002 |
Definition at line 143 of file cmdutils.h.
Referenced by parse_option(), split_commandline(), and write_option().
#define OPT_EXPERT 0x0004 |
Definition at line 144 of file cmdutils.h.
Referenced by show_help_default().
#define OPT_STRING 0x0008 |
Definition at line 145 of file cmdutils.h.
Referenced by uninit_options(), and write_option().
#define OPT_VIDEO 0x0010 |
Definition at line 146 of file cmdutils.h.
Referenced by show_help_default().
#define OPT_AUDIO 0x0020 |
Definition at line 147 of file cmdutils.h.
Referenced by show_help_default().
#define OPT_INT 0x0080 |
Definition at line 148 of file cmdutils.h.
Referenced by opt_streamid(), opt_vsync(), parse_number_or_die(), and write_option().
#define OPT_FLOAT 0x0100 |
Definition at line 149 of file cmdutils.h.
Referenced by write_option().
#define OPT_SUBTITLE 0x0200 |
Definition at line 150 of file cmdutils.h.
Referenced by show_help_default().
#define OPT_INT64 0x0400 |
Definition at line 151 of file cmdutils.h.
Referenced by opt_height(), opt_timelimit(), opt_width(), parse_number_or_die(), and write_option().
#define OPT_EXIT 0x0800 |
Definition at line 152 of file cmdutils.h.
Referenced by show_help_default(), split_commandline(), and write_option().
#define OPT_DATA 0x1000 |
Definition at line 153 of file cmdutils.h.
#define OPT_PERFILE |
Definition at line 154 of file cmdutils.h.
Referenced by add_opt(), and show_help_default().
#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */ |
Definition at line 156 of file cmdutils.h.
Referenced by add_opt(), show_help_default(), uninit_options(), and write_option().
#define OPT_SPEC |
Definition at line 157 of file cmdutils.h.
Referenced by add_opt(), show_help_default(), uninit_options(), and write_option().
#define OPT_TIME 0x10000 |
Definition at line 160 of file cmdutils.h.
Referenced by write_option().
#define OPT_DOUBLE 0x20000 |
Definition at line 161 of file cmdutils.h.
Referenced by write_option().
#define OPT_INPUT 0x40000 |
Definition at line 162 of file cmdutils.h.
#define OPT_OUTPUT 0x80000 |
Definition at line 163 of file cmdutils.h.
#define GROW_ARRAY | ( | array, | |
nb_elems | |||
) | array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1) |
Definition at line 537 of file cmdutils.h.
Referenced by add_input_streams(), add_opt(), configure_filtergraph(), DEF_CHOOSE_FORMAT(), finish_group(), init_input_filter(), new_output_stream(), open_input_file(), open_output_file(), opt_attach(), opt_filter_complex(), opt_filter_complex_script(), and opt_map().
#define GET_PIX_FMT_NAME | ( | pix_fmt | ) | const char *name = av_get_pix_fmt_name(pix_fmt); |
Definition at line 540 of file cmdutils.h.
Referenced by print_codec().
#define GET_SAMPLE_FMT_NAME | ( | sample_fmt | ) | const char *name = av_get_sample_fmt_name(sample_fmt) |
Definition at line 543 of file cmdutils.h.
Referenced by print_codec().
#define GET_SAMPLE_RATE_NAME | ( | rate | ) |
#define GET_CH_LAYOUT_NAME | ( | ch_layout | ) |
Definition at line 550 of file cmdutils.h.
#define GET_CH_LAYOUT_DESC | ( | ch_layout | ) |
Definition at line 554 of file cmdutils.h.
Referenced by print_codec().
Register a program-specific cleanup routine.
Definition at line 89 of file cmdutils.c.
Referenced by main().
void exit_program | ( | int | ret | ) |
Wraps exit with a program-specific cleanup routine.
Definition at line 94 of file cmdutils.c.
Referenced by abort_codec_experimental(), add_input_streams(), assert_avoptions(), assert_file_overwrite(), copy_metadata(), decode_audio(), decode_video(), do_audio_out(), do_streamcopy(), do_subtitle_out(), do_video_out(), do_video_stats(), dump_attachment(), find_codec_or_die(), flush_encoders(), get_format(), get_line(), get_ost_filters(), grow_array(), init_output_filter(), init_parse_context(), main(), new_audio_stream(), new_data_stream(), new_output_stream(), new_video_stream(), open_input_file(), open_output_file(), opt_input_file(), opt_loglevel(), opt_map(), opt_streamid(), opt_target(), parse_forced_key_frames(), parse_frame_aspect_ratio(), parse_matrix_coeffs(), parse_meta_type(), parse_number_or_die(), parse_options(), parse_time_or_die(), print_sdp(), probe_group_enter(), process_input(), set_encoder_id(), transcode_init(), write_frame(), and write_option().
Initialize the cmdutils option system, in particular allocate the *_opts contexts.
Definition at line 63 of file cmdutils.c.
Referenced by finish_group(), init_parse_context(), and main().
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents.
Definition at line 71 of file cmdutils.c.
Referenced by avconv_cleanup(), do_exit(), and uninit_parse_context().
Trivial log callback.
Only suitable for show_help and similar since it lacks prefix handling.
Definition at line 82 of file cmdutils.c.
Referenced by show_help(), show_help_default(), and show_version().
int opt_cpuflags | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Override the cpuflags mask.
Definition at line 699 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 433 of file cmdutils.c.
Referenced by opt_channel_layout(), 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 710 of file cmdutils.c.
Referenced by parse_loglevel().
int opt_timelimit | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Limit the execution time.
Definition at line 745 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 102 of file cmdutils.c.
Referenced by opt_height(), 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 123 of file cmdutils.c.
Referenced by opt_duration(), opt_seek(), 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 135 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 164 of file cmdutils.c.
Referenced by print_codec(), show_help_children(), show_help_default(), show_help_demuxer(), and show_help_muxer().
void show_help_default | ( | const char * | opt, |
const char * | arg | ||
) |
Per-avtool specific help handler.
Implemented in each avtool, called by show_help().
Definition at line 2025 of file avconv_opt.c.
Referenced by show_help().
int show_help | ( | void * | optctx, |
const char * | opt, | ||
const char * | arg | ||
) |
Generic -h handler common to all avtools.
Definition at line 1347 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 300 of file cmdutils.c.
Referenced by opt_audio_codec(), opt_audio_filters(), opt_audio_frames(), opt_audio_qscale(), opt_audio_tag(), opt_channel_layout(), 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().
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 364 of file cmdutils.c.
Referenced by avconv_parse_options(), and open_files().
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 598 of file cmdutils.c.
Referenced by avconv_parse_options().
void uninit_parse_context | ( | OptionParseContext * | octx | ) |
Free all allocated memory in an OptionParseContext.
Definition at line 572 of file cmdutils.c.
Referenced by avconv_parse_options().
Find the '-loglevel' option in the command line args and apply it.
Definition at line 423 of file cmdutils.c.
Referenced by main().
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.
Definition at line 397 of file cmdutils.c.
Referenced by parse_loglevel().
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 1506 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, | ||
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 1589 of file cmdutils.c.
Referenced by add_input_streams(), new_output_stream(), 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 1645 of file cmdutils.c.
Referenced by decode_thread(), and open_input_file().
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 758 of file cmdutils.c.
Referenced by decode_thread(), open_input_file(), open_output_file(), process_input(), and write_frame().
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 815 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.
Definition at line 827 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.
Definition at line 836 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.
Definition at line 907 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.
Definition at line 1047 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 1126 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 1132 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.
Definition at line 1164 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.
Definition at line 1138 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.
Definition at line 1149 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.
Definition at line 1176 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 1209 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 1379 of file cmdutils.c.
Referenced by assert_file_overwrite().
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.
filename | file to read from |
bufptr | location where pointer to buffer is returned |
size | location where size of buffer is returned |
Definition at line 1390 of file cmdutils.c.
Referenced by transcode_init().
void init_pts_correction | ( | PtsCorrectionContext * | ctx | ) |
Reset the state of the PtsCorrectionContext.
Definition at line 1445 of file cmdutils.c.
Referenced by get_video_frame(), and init_input_stream().
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.
ctx | the PtsCorrectionContext carrying stream pts information |
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 1451 of file cmdutils.c.
Referenced by decode_video(), and get_video_frame().
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 1473 of file cmdutils.c.
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 1665 of file cmdutils.c.
Referenced by opt_streamid(), and write_option().
const char* media_type_string | ( | enum AVMediaType | media_type | ) |
Get a string describing a media type.
Definition at line 1684 of file cmdutils.c.
Referenced by print_final_stats(), show_packet(), and show_stream().
const char program_name[] |
program name, defined by the program for show_version().
Definition at line 82 of file avconv.c.
Referenced by main(), show_banner(), show_help_default(), show_license(), show_usage(), and show_version().
const int program_birth_year |
program birth year, defined by the program for show_banner()
Definition at line 83 of file avconv.c.
Referenced by show_banner().
AVCodecContext* avcodec_opts[AVMEDIA_TYPE_NB] |
AVFormatContext* avformat_opts |
struct SwsContext* sws_opts |
Definition at line 58 of file cmdutils.c.
Referenced by finish_group(), and queue_picture().
AVDictionary* format_opts |
Definition at line 59 of file cmdutils.c.
Referenced by decode_thread(), finish_group(), main(), open_input_file(), and opt_target().
AVDictionary * codec_opts |
Definition at line 59 of file cmdutils.c.
Referenced by decode_thread(), finish_group(), opt_target(), and stream_component_open().
AVDictionary * resample_opts |
Definition at line 59 of file cmdutils.c.
Referenced by finish_group().