Hi, I'd like to add this patch to dvb-kernel's linux/dvb/video.h, so userspace programs can adjust video system settings (PAL/NTSC) depending on the frame rate and video size. I think it won't break binary compatibility. The frame rate values are taken from ITU-T Rec. H.262 (2000 E) Table 6-4. May I proceed? Regards, Andreas
? video_event.diff
Index: linux/dvb/video.h
===================================================================
RCS file: /cvs/linuxtv/dvb-kernel/linux/include/linux/dvb/video.h,v
retrieving revision 1.3
diff -u -r1.3 video.h
--- linux/dvb/video.h 22 Apr 2003 13:19:06 -0000 1.3
+++ linux/dvb/video.h 19 Dec 2003 23:06:59 -0000
@@ -64,6 +64,17 @@
} video_size_t;
typedef enum {
+ VIDEO_FRAME_RATE_23_976,
+ VIDEO_FRAME_RATE_24,
+ VIDEO_FRAME_RATE_25,
+ VIDEO_FRAME_RATE_29_97,
+ VIDEO_FRAME_RATE_30,
+ VIDEO_FRAME_RATE_50,
+ VIDEO_FRAME_RATE_59_94,
+ VIDEO_FRAME_RATE_60
+} video_frame_rate_t;
+
+typedef enum {
VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
comes from the user through the write
@@ -80,10 +91,12 @@
struct video_event {
int32_t type;
-#define VIDEO_EVENT_SIZE_CHANGED 1
+#define VIDEO_EVENT_SIZE_CHANGED 1
+#define VIDEO_EVENT_FRAME_RATE_CHANGED 2
time_t timestamp;
union {
video_size_t size;
+ video_frame_rate_t frame_rate;
} u;
};
@@ -194,6 +207,7 @@
#define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t)
#define VIDEO_SET_ATTRIBUTES _IO('o', 53)
#define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
+#define VIDEO_GET_FRAME_RATE _IOR('o', 56, video_frame_rate_t)
#endif /*_DVBVIDEO_H_*/
Attachment:
signature.asc
Description: This is a digitally signed message part