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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2011-12-15 10:40:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-02-14 13:45:56 -0200 |
| commit | 6e82a6a2a0e895b787f22d28311232cc94fda4b9 (patch) | |
| tree | 8b002b1d946d7a5d525ed8f0b84499f1650a2301 | |
| parent | 85eeece773a6f0d2ba00958782995cbe68218256 (diff) | |
| download | linux-6e82a6a2a0e895b787f22d28311232cc94fda4b9.tar.gz | |
[media] ivtv: add IVTV_IOC_PASSTHROUGH_MODE
With this private ioctl it is possible to use the ivtv decoder without requiring the dvb/video.h and dvb/audio.h headers. Eventually support for those DVB APIs will be dropped from ivtv. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-ioctl.c | 8 | ||||
| -rw-r--r-- | include/linux/ivtv.h | 6 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index cd8032693e6d..37ac32b53baf 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -1625,6 +1625,12 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg) return ivtv_yuv_prep_frame(itv, args); } + case IVTV_IOC_PASSTHROUGH_MODE: + IVTV_DEBUG_IOCTL("IVTV_IOC_PASSTHROUGH_MODE\n"); + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return -EINVAL; + return ivtv_passthrough_mode(itv, *(int *)arg != 0); + case VIDEO_GET_PTS: { s64 *pts = arg; s64 frame; @@ -1786,6 +1792,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio, if (!valid_prio) { switch (cmd) { + case IVTV_IOC_PASSTHROUGH_MODE: case VIDEO_PLAY: case VIDEO_STOP: case VIDEO_FREEZE: @@ -1811,6 +1818,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio, } case IVTV_IOC_DMA_FRAME: + case IVTV_IOC_PASSTHROUGH_MODE: case VIDEO_GET_PTS: case VIDEO_GET_FRAME_COUNT: case VIDEO_GET_EVENT: diff --git a/include/linux/ivtv.h b/include/linux/ivtv.h index 062d20f74322..42bf725751af 100644 --- a/include/linux/ivtv.h +++ b/include/linux/ivtv.h @@ -58,7 +58,11 @@ struct ivtv_dma_frame { __u32 src_height; }; -#define IVTV_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame) +#define IVTV_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame) + +/* Select the passthrough mode (if the argument is non-zero). In the passthrough + mode the output of the encoder is passed immediately into the decoder. */ +#define IVTV_IOC_PASSTHROUGH_MODE _IOW ('V', BASE_VIDIOC_PRIVATE+1, int) /* Deprecated defines: applications should use the defines from videodev2.h */ #define IVTV_SLICED_TYPE_TELETEXT_B V4L2_MPEG_VBI_IVTV_TELETEXT_B |