* parsed or the corresponding value is invalid.
*
* @param context the context of the value to be set (e.g. the
- * corresponding commandline option name)
+ * corresponding command line option name)
* @param numstr the string to be parsed
* @param type the type (OPT_INT64 or OPT_FLOAT) as which the
* string should be parsed
* @param min the minimum valid accepted value
* @param max the maximum valid accepted value
*/
-double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max);
+double parse_number_or_die(const char *context, const char *numstr, int type,
+ double min, double max);
/**
* Parse a string specifying a time and return its corresponding
* the string cannot be correctly parsed.
*
* @param context the context of the value to be set (e.g. the
- * corresponding commandline option name)
+ * corresponding command line option name)
* @param timestr the string to be parsed
* @param is_duration a flag which tells how to interpret timestr, if
* not zero timestr is interpreted as a duration, otherwise as a
*
* @see parse_date()
*/
-int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
+int64_t parse_time_or_die(const char *context, const char *timestr,
+ int is_duration);
+
+typedef struct SpecifierOpt {
+ char *specifier; /**< stream/chapter/program/... specifier */
+ union {
+ uint8_t *str;
+ int i;
+ int64_t i64;
+ float f;
+ double dbl;
+ } u;
+} SpecifierOpt;
typedef struct {
const char *name;
#define OPT_INT64 0x0400
#define OPT_EXIT 0x0800
#define OPT_DATA 0x1000
+#define OPT_FUNC2 0x2000
+#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */
+#define OPT_SPEC 0x8000 /* option is to be stored in an array of SpecifierOpt.
+ Implies OPT_OFFSET. Next element after the offset is
+ an int containing element count in the array. */
+#define OPT_TIME 0x10000
+#define OPT_DOUBLE 0x20000
union {
- int *int_arg;
- char **str_arg;
- float *float_arg;
+ void *dst_ptr;
int (*func_arg)(const char *, const char *);
- int64_t *int64_arg;
+ int (*func2_arg)(void *, const char *, const char *);
+ size_t off;
} u;
const char *help;
const char *argname;
} OptionDef;
-void show_help_options(const OptionDef *options, const char *msg, int mask, int value);
+void show_help_options(const OptionDef *options, const char *msg, int mask,
+ int value);
+
+/**
+ * Show help for all options with given flags in class and all its
+ * children.
+ */
+void show_help_children(const AVClass *class, int flags);
/**
* Parse the command line arguments.
+ *
+ * @param optctx an opaque options context
* @param options Array with the definitions required to interpret every
* option of the form: -option_name [argument]
* @param 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.
*/
-void parse_options(int argc, char **argv, const OptionDef *options,
- void (* parse_arg_function)(const char*));
+void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
+ void (* parse_arg_function)(void *optctx, const char*));
+
+/**
+ * Parse one given option.
+ *
+ * @return on success 1 if arg was consumed, 0 otherwise; negative number on error
+ */
+int parse_option(void *optctx, const char *opt, const char *arg,
+ const OptionDef *options);
+
+/**
+ * Find the '-loglevel' option in the command line args and apply it.
+ */
+void parse_loglevel(int argc, char **argv, const OptionDef *options);
+
+/**
+ * Return index of option opt in argv or 0 if not found.
+ */
+int locate_option(int argc, char **argv, const OptionDef *options,
+ const char *optname);
/**
* Check if the given stream matches a stream specifier.
*
* @param s Corresponding format context.
* @param st Stream from s to be checked.
- * @param spec A stream specifier of the [v|a|s|d]:[<stream index>] form.
+ * @param spec A stream specifier of the [v|a|s|d]:[\<stream index\>] form.
*
* @return 1 if the stream matches, 0 if it doesn't, <0 on error
*/
* @param st A stream from s for which the options should be filtered.
* @return a pointer to the created dictionary
*/
-AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, AVFormatContext *s, AVStream *st);
+AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id,
+ AVFormatContext *s, AVStream *st);
/**
* Setup AVCodecContext options for avformat_find_stream_info().
* @return pointer to the created array of dictionaries, NULL if it
* cannot be created
*/
-AVDictionary **setup_find_stream_info_opts(AVFormatContext *s, AVDictionary *codec_opts);
+AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
+ AVDictionary *codec_opts);
/**
* Print an error message to stderr, indicating filename and a human
*/
void show_pix_fmts(void);
+/**
+ * Print a listing containing all the sample formats supported by the
+ * program.
+ */
+int show_sample_fmts(const char *opt, const char *arg);
+
/**
* Return a positive value if a line read from standard input
* starts with [yY], otherwise return 0.
* @return 0 in case of success, a negative value corresponding to an
* AVERROR error code in case of failure.
*/
-int read_file(const char *filename, char **bufptr, size_t *size);
+int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
typedef struct {
int64_t num_faulty_pts; /// Number of incorrect PTS values so far
* 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
+ * 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.ffpreset in the above-mentioned directories.
+ * codec_name-preset_name.avpreset in the above-mentioned directories.
*
* @param filename buffer where the name of the found filename is written
* @param filename_size size in bytes of the filename buffer
FILE *get_preset_file(char *filename, size_t filename_size,
const char *preset_name, int is_path, const char *codec_name);
-typedef struct {
- enum PixelFormat pix_fmt;
-} FFSinkContext;
-
-extern AVFilter ffsink;
-
-/**
- * Extract a frame from sink.
- *
- * @return a negative error in case of failure, 1 if one frame has
- * been extracted successfully.
- */
-int get_filtered_video_frame(AVFilterContext *sink, AVFrame *frame,
- AVFilterBufferRef **picref, AVRational *pts_tb);
-
/**
* Do all the necessary cleanup and abort.
* This function is implemented in the avtools, not cmdutils.
*/
void exit_program(int ret);
+/**
+ * Realloc array to hold new_size elements of elem_size.
+ * Calls exit_program() on failure.
+ *
+ * @param elem_size size in bytes of each element
+ * @param size new element count will be written here
+ * @return reallocated array
+ */
+void *grow_array(void *array, int elem_size, int *size, int new_size);
+
#endif /* LIBAV_CMDUTILS_H */
projects / ffmpeg / blobdiff