I have attached a proposal of API changes for IDirectFBVideoProvider
that implements some missing feataures keeping the maximum compatibility
with the current interface.
The patch adds two methods:
- SetSpeed() can be used to change playback speed, it takes a speed
multiplier as argument (> 0.0, 1.0 for normal speed, 0.0 for pause);
calling Play() resets the speed multiplier to 1.0; if playback was
stopped/paused using Stop(), SetSpeed() doesn't take effect.
- GetRatio() can be used to query the video aspect ratio.
To notify end of playback, GetPos() returns DFB_EOF (new errorcode).
--
Regards,
Claudio Ciccani
[EMAIL PROTECTED]
http://directfb.org
http://sf.net/projects/php-directfb
--- DirectFB/include/directfb.h 2005-02-28 11:17:01.000000000 +0100
+++ /home/klan/src/DirectFB/include/directfb.h 2005-03-12 18:21:54.000000000 +0100
@@ -193,7 +193,8 @@
DFB_NOSUCHINSTANCE, /* Requested instance is not known to remote site. */
DFB_ITEMNOTFOUND, /* No such item found. */
DFB_VERSIONMISMATCH,/* Some versions didn't match. */
- DFB_NOSHAREDMEMORY /* There's not enough shared memory. */
+ DFB_NOSHAREDMEMORY, /* There's not enough shared memory. */
+ DFB_EOF /* End of file/stream reached. */
} DFBResult;
/*
@@ -4671,6 +4672,14 @@
);
/*
+ * Set the speed multiplier (1.0 for normal speed).
+ */
+ DFBResult (*SetSpeed) (
+ IDirectFBVideoProvider *thiz,
+ double multiplier
+ );
+
+ /*
* Gets current position within the stream.
*/
DFBResult (*GetPos) (
@@ -4686,6 +4695,14 @@
double *ret_seconds
);
+ /*
+ * Gets the video aspect ratio.
+ */
+ DFBResult (*GetRatio) (
+ IDirectFBVideoProvider *thiz,
+ double *ret_ratio
+ );
+
/** Color Adjustment **/
/*
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