diff options
Diffstat (limited to 'src/output_plugin.h')
| -rw-r--r-- | src/output_plugin.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/output_plugin.h b/src/output_plugin.h index 13dba0d0b..ee7f7c73d 100644 --- a/src/output_plugin.h +++ b/src/output_plugin.h @@ -67,6 +67,24 @@ struct audio_output_plugin { void (*finish)(void *data); /** + * Enable the device. This may allocate resources, preparing + * for the device to be opened. Enabling a device cannot + * fail: if an error occurs during that, it should be reported + * by the open() method. + * + * @param error_r location to store the error occuring, or + * NULL to ignore errors + * @return true on success, false on error + */ + bool (*enable)(void *data, GError **error_r); + + /** + * Disables the device. It is closed before this method is + * called. + */ + void (*disable)(void *data); + + /** * Really open the device. * * @param audio_format the audio format in which data is going @@ -99,6 +117,11 @@ struct audio_output_plugin { GError **error); /** + * Wait until the device has finished playing. + */ + void (*drain)(void *data); + + /** * Try to cancel data which may still be in the device's * buffers. */ @@ -150,6 +173,22 @@ ao_plugin_finish(const struct audio_output_plugin *plugin, void *data) } static inline bool +ao_plugin_enable(const struct audio_output_plugin *plugin, void *data, + GError **error_r) +{ + return plugin->enable != NULL + ? plugin->enable(data, error_r) + : true; +} + +static inline void +ao_plugin_disable(const struct audio_output_plugin *plugin, void *data) +{ + if (plugin->disable != NULL) + plugin->disable(data); +} + +static inline bool ao_plugin_open(const struct audio_output_plugin *plugin, void *data, struct audio_format *audio_format, GError **error) @@ -180,6 +219,13 @@ ao_plugin_play(const struct audio_output_plugin *plugin, } static inline void +ao_plugin_drain(const struct audio_output_plugin *plugin, void *data) +{ + if (plugin->drain != NULL) + plugin->drain(data); +} + +static inline void ao_plugin_cancel(const struct audio_output_plugin *plugin, void *data) { if (plugin->cancel != NULL) |