diff options
Diffstat (limited to 'audio/out/ao.h')
| -rw-r--r-- | audio/out/ao.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/audio/out/ao.h b/audio/out/ao.h index 81737e094d..73a7cdfa61 100644 --- a/audio/out/ao.h +++ b/audio/out/ao.h @@ -38,6 +38,8 @@ enum aocontrol { AOCONTROL_UPDATE_STREAM_TITLE, }; +// If set, then the queued audio data is the last. Note that after a while, new +// data might be written again, instead of closing the AO. #define AOPLAY_FINAL_CHUNK 1 typedef struct ao_control_vol { @@ -48,11 +50,18 @@ typedef struct ao_control_vol { struct ao; struct ao_driver { + // If true, use with encoding only. bool encode; + // Name used for --ao. const char *name; + // Description shown with --ao=help. const char *description; - int (*control)(struct ao *ao, enum aocontrol cmd, void *arg); + // Init the device using ao->format/ao->channels/ao->samplerate. If the + // device doesn't accept these parameters, you can attempt to negotiate + // fallback parameters, and set the ao format fields accordingly. int (*init)(struct ao *ao); + // See ao_control() etc. in ao.c + int (*control)(struct ao *ao, enum aocontrol cmd, void *arg); void (*uninit)(struct ao *ao, bool cut_audio); void (*reset)(struct ao*ao); int (*get_space)(struct ao *ao); @@ -71,7 +80,7 @@ struct ao_driver { struct ao { int samplerate; struct mp_chmap channels; - int format; + int format; // one of AF_FORMAT_... int bps; // bytes per second int sstride; // size of a sample on each plane // (format_size*num_channels/num_planes) @@ -80,7 +89,7 @@ struct ao { int buffer_playable_samples;// part of the part of the buffer the AO hasn't // accepted yet with play() bool probing; // if true, don't fail loudly on init - bool untimed; + bool untimed; // don't assume realtime playback bool no_persistent_volume; // the AO does the equivalent of af_volume bool per_application_mixer; // like above, but volume persists (per app) const struct ao_driver *driver; |