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cmdutils: extend -h to allow printing codec details.

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This commit is contained in:
Anton Khirnov 2012-08-13 20:06:25 +02:00
parent 7c5012127f
commit a3ad68d36c
9 changed files with 172 additions and 32 deletions
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30
cmdutils.h
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@ -170,6 +170,17 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
*/
void show_help_children(const AVClass *class, int flags);
/**
* Per-avtool specific help handler. Implemented in each
* avtool, called by show_help().
*/
void show_help_default(const char *opt, const char *arg);
/**
* Generic -h handler common to all avtools.
*/
int show_help(const char *opt, const char *arg);
/**
* Parse the command line arguments.
*
@ -446,4 +457,23 @@ void filter_release_buffer(AVFilterBuffer *fb);
* buffers have been released.
*/
void free_buffer_pool(FrameBuffer **pool);
#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)\
char name[16];\
snprintf(name, sizeof(name), "%d", rate);
#define GET_CH_LAYOUT_NAME(ch_layout)\
char name[16];\
snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
#define GET_CH_LAYOUT_DESC(ch_layout)\
char name[128];\
av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);
#endif /* LIBAV_CMDUTILS_H */