ivtv-0.10:
after calling IVTV_IOC_PAUSE I call IVTV_IOC_PLAY to resume decoder playback
(don`t know another way). For unknown reason this driver code doesn`t work:
case IVTV_IOC_PLAY:{
struct ivtv_stream *s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];
IVTV_DEBUG_IOCTL("IVTV_IOC_PLAY (Obsolete: use
IVTV_IOC_START_DECODE)\n");
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return -EINVAL;
if (ivtv_set_output_mode(itv, OUT_MPG) != OUT_MPG)
return -EBUSY;
return ivtv_start_v4l2_decode_stream(s, 0);
although the code looks like as if the driver should do IVTV_IOC_START_DECODE
instead. But nothing happens, the picture remains freezed.
If I let my application call IVTV_IOC_START_DECODE to resume playback, it
works, but I get a warning
ivtv0 warning: start decode, stream already started! Stopping
and playback skips a few seconds.
I changed ivtv-ioctl.c back to this:
case IVTV_IOC_PLAY:{
IVTV_DEBUG_IOCTL("IVTV_IOC_PLAY\n");
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return -EINVAL;
if (atomic_read(&itv->decoding) > 0) {
ivtv_vapi(itv,CX2341X_DEC_START_PLAYBACK, 2, 0, 0);
}
break;
and everything works fine. I think most applications use the IVTV_IOC_PLAY
command in combination with IVTV_IOC_PAUSE. In order to avoid breaking
compatibility, I suggest to change the 0.10-driver like above.
I know, the new v4l2 commands will solve this anyway, but I think it will take
some time to rewrite the applications.
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