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.
*
* @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
*
* 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
+ * $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.