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authorLukasz Marek <lukasz.m.luki2@gmail.com>2014-04-15 22:06:17 +0200
committerLukasz Marek <lukasz.m.luki2@gmail.com>2014-04-18 02:15:56 +0200
commit4c0f36412abca964efe675599054a0cdd84fce29 (patch)
tree17c1c501ad24873a6ab98a2bb4956607a5458321 /libavdevice/avdevice.h
parentcef118032910230dc6ce845f76bfaf82277297f4 (diff)
downloadffmpeg-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.h53
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'),
};
/**