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lavd/avdevice: introduce helper functions for sink/sources listing

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Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
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Lukasz Marek 2014-12-21 20:12:47 +01:00
parent 9241e544ff
commit 007c33df0a
7 changed files with 153 additions and 1 deletions
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22
libavdevice/avdevice.h
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@ -484,4 +484,26 @@ int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_l
*/
void avdevice_free_list_devices(AVDeviceInfoList **device_list);
/**
* List devices.
*
* Returns available device names and their parameters.
* These are convinient wrappers for avdevice_list_devices().
* Device context is allocated and deallocated internally.
*
* @param device device format. May be NULL if device name is set.
* @param device_name device name. May be NULL if device format is set.
* @param device_options An AVDictionary filled with device-private options. May be NULL.
* The same options must be passed later to avformat_write_header() for output
* devices or avformat_open_input() for input devices, or at any other place
* that affects device-private options.
* @param[out] device_list list of autodetected devices
* @return count of autodetected devices, negative on error.
* @note device argument takes precedence over device_name when both are set.
*/
int avdevice_list_input_sources(struct AVInputFormat *device, const char *device_name,
AVDictionary *device_options, AVDeviceInfoList **device_list);
int avdevice_list_output_sinks(struct AVOutputFormat *device, const char *device_name,
AVDictionary *device_options, AVDeviceInfoList **device_list);
#endif /* AVDEVICE_AVDEVICE_H */