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author | Lukasz Marek <lukasz.m.luki2@gmail.com> | 2014-04-15 22:06:17 +0200 |
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committer | Lukasz Marek <lukasz.m.luki2@gmail.com> | 2014-04-18 02:15:56 +0200 |
commit | 4c0f36412abca964efe675599054a0cdd84fce29 (patch) | |
tree | 17c1c501ad24873a6ab98a2bb4956607a5458321 /libavdevice/avdevice.h | |
parent | cef118032910230dc6ce845f76bfaf82277297f4 (diff) | |
download | ffmpeg-4c0f36412abca964efe675599054a0cdd84fce29.tar.gz |
lavd/avdevice: add volume messages
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Diffstat (limited to 'libavdevice/avdevice.h')
-rw-r--r-- | libavdevice/avdevice.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libavdevice/avdevice.h b/libavdevice/avdevice.h index 6085eb4a04..92678ebd45 100644 --- a/libavdevice/avdevice.h +++ b/libavdevice/avdevice.h @@ -154,6 +154,41 @@ enum AVAppToDevMessageType { AV_APP_TO_DEV_PAUSE = MKBETAG('P', 'A', 'U', ' '), AV_APP_TO_DEV_PLAY = MKBETAG('P', 'L', 'A', 'Y'), AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'), + + /** + * Volume control message. + * + * Set volume level. It may be device-dependent if volume + * is changed per stream or system wide. Per stream volume + * change is expected when possible. + * + * data: double: new volume with range of 0.0 - 1.0. + */ + AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'), + + /** + * Mute control messages. + * + * Change mute state. It may be device-dependent if mute status + * is changed per stream or system wide. Per stream mute status + * change is expected when possible. + * + * data: NULL. + */ + AV_APP_TO_DEV_MUTE = MKBETAG(' ', 'M', 'U', 'T'), + AV_APP_TO_DEV_UNMUTE = MKBETAG('U', 'M', 'U', 'T'), + AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'), + + /** + * Get volume/mute messages. + * + * Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or + * AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively. + * + * data: NULL. + */ + AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'), + AV_APP_TO_DEV_GET_MUTE = MKBETAG('G', 'M', 'U', 'T'), }; /** @@ -237,6 +272,24 @@ enum AVDevToAppMessageType { */ AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '), AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '), + + /** + * Mute state change message. + * + * Device informs that mute state has changed. + * + * data: int: 0 for not muted state, non-zero for muted state. + */ + AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'), + + /** + * Volume level change message. + * + * Device informs that volume level has changed. + * + * data: double: new volume with range of 0.0 - 1.0. + */ + AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'), }; /** |