V4L2 1080I Capture

Hello,

Could you try with the latest EZSDK 5.05.02 with GST_DM81XX_00_07_00_00.

Could you run saLoopBack exapmle.

Which platform and which revision you are using for 1080i capture?

Let me know the result.

Best Regards,

Margarita

We are using EZSDK 5.05.02 with gst-openmax_GST_DM81XX_00_07_00_00. Our board
is based on the 8148 EVM. I have downloaded and compiled TAG_GST_DM81XX_00_06_00_00
for GStreamer to debug  GStreamer V4l2 since the sources are not included in the SDK.
Using both saLoopBack and saLoopBackScale work with progressive formats but fail on 1080I.
The failure is identical using GStreamer V4L2. I have added kernel printk to debug ti81xxvin_main.c
(ti81xxvin.ko) ioctl calls from v4l2. The output from the console is shows both the user app
and printk output from the driver. The check for interlaced format first occurs in vidioc_s_crop
and is defined by the video presets.


---------------------------------------------------- 720P60 ---------------------------------------
root@DVM8148:~/tools/tests# ./saLoopBackScale
Driver Name: ti81xxvin
Driver bus info: TI81xx Platform
Driver is capable of doing capture
saLoopBackScale:
 Mode set is 720P60
Driver Name: t81xx_vidout
Driver bus info:
Driver is capable of doing capture
=============================================================
Capture Format:
=============================================================
fmt.type                 = 1
fmt.width                = 1280
fmt.height               = 720
fmt.pixelformat  = 1448695129
fmt.bytesperline         = 2560
fmt.sizeimage    = 1843200
=============================================================
=============================================================
Display Format:
=============================================================
fmt.type                 = 2
fmt.width                = 480
fmt.height               = 272
fmt.pixelformat  = 1448695129
fmt.bytesperline         = 960
fmt.sizeimage    = 261120
=============================================================
Count=0
Frame rate = 62


root@DVM8148:~# dvmsdia 1-0010: SDI read error 0
dvm_sdi_query_dv_preset SDI Input is HD/3G
dvm_sdi_query_dv_preset Format: 00000007
dvm_sdi_query_dv_preset preset index: 00000008
ti81xxvin_config_format crop.width: 1280 crop.height: 720
ti81xxvin_config_format win.w.width: 1280 win.w.height: 720
ti81xxvin_vps_config_scalar Width: 1280 Height: 720
ti81xxvin_vps_config_scalar Crop Width: 1280 Crop Height: 720
ti81xxvin_config_format crop.width: 1280 crop.height: 720
ti81xxvin_config_format win.w.width: 1280 win.w.height: 720
vidioc_querycap cap: 4000002
vidioc_s_crop
ti81xxvin_new_crop
vidioc_s_crop Error: 0
vidioc_s_fmt_vid_overlay
vidioc_s_fmt_vid_cap Width: 1280 Height: 720
ti81xxvin_check_format sizeimage: 1843200 hpitch: 2560
ti81xxvin_vps_config_scalar Width: 480 Height: 272
ti81xxvin_vps_config_scalar Crop Width: 1280 Crop Height: 720
ti81xxvin_vps_config_scalar Width: 480 Height: 272
vidioc_s_fmt_vid_out
ti81xxvid_setup_video width:480 height:272
ti81xxvid_setup_video width:480 height:272
vidioc_streamon Width: 1280 Height: 720
ti81xxvin_check_format sizeimage: 1843200 hpitch: 2560

---------------------------------------------------- 1080I60 ---------------------------------------

root@DVM8148:~/tools/tests# ./saLoopBackScale
Driver Name: ti81xxvin
Driver bus info: TI81xx Platform
Driver is capable of doing capture
saLoopBackScale:
 Mode set is 1080I60
Driver Name: t81xx_vidout
Driver bus info:
Driver is capable of doing capture
Setting format failed

root@DVM8148:~# dvmsdia 1-0010: SDI read error 0
dvm_sdi_query_dv_preset SDI Input is HD/3G
dvm_sdi_query_dv_preset Format: 00000002
dvm_sdi_query_dv_preset preset index: 0000000d
ti81xxvin_config_format crop.width: 1920 crop.height: 1080
ti81xxvin_config_format win.w.width: 1920 win.w.height: 1080
ti81xxvin_vps_config_scalar Width: 1920 Height: 1080
ti81xxvin_vps_config_scalar Crop Width: 1920 Crop Height: 1080
ti81xxvin_config_format crop.width: 1920 crop.height: 1080
ti81xxvin_config_format win.w.width: 1920 win.w.height: 1080
vidioc_querycap cap: 4000002
vidioc_s_crop
vidioc_s_crop Interlaced

---------------------
ti81xxvin_main.c
---------------------
static int vidioc_s_crop(struct file *file, void *priv,
                struct v4l2_crop *crop)
{
        int err = -EINVAL;
        struct ti81xxvin_fh *fh = priv;
        struct ti81xxvin_instance_obj *inst = fh->instance;
        struct ti81xxvin_buffer_obj *buf_obj = &inst->buf_obj;
        u32 decoder_width = inst->video.buf_params.width;
        u32 decoder_height = inst->video.buf_params.height;
        struct ti81xxvin_buffer_params *params = &inst->video.buf_params;

        printk(KERN_INFO "%s \n", __FUNCTION__) ;

        if (buf_obj->started)
                return -EBUSY;

        if (mutex_lock_interruptible(&buf_obj->buf_lock))
                return -ERESTARTSYS;

        if (params->interlaced) {
                printk(KERN_INFO "%s Interlaced\n", __FUNCTION__) ;
                mutex_unlock(&buf_obj->buf_lock);
                return -EINVAL;
        }

        if (crop->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
                err = ti81xxvin_new_crop(decoder_width, decoder_height,
                                &inst->crop, &crop->c);
                inst->win.w.left = 0;
                inst->win.w.top = 0;
                inst->win.w.width = inst->crop.width;
                inst->win.w.height = inst->crop.height;
                printk(KERN_INFO "%s Error: %d\n", __FUNCTION__, err) ;
                mutex_unlock(&buf_obj->buf_lock);
                return err;
        } else {
                mutex_unlock(&buf_obj->buf_lock);
                return -EINVAL;
        }
}

------------
tvp7002.c
------------
/* Struct list for digital video presets */
static const struct tvp7002_preset_definition tvp7002_presets[] = {

        {
                V4L2_DV_720P60,
                tvp7002_parms_720P60,
                V4L2_COLORSPACE_REC709,
                V4L2_FIELD_NONE,
                1,
                0x2EE,
                135,
                153
        },

        {
                V4L2_DV_1080I60,
                tvp7002_parms_1080I60,
                V4L2_COLORSPACE_REC709,
                V4L2_FIELD_INTERLACED,
                0,
                0x465,
                181,
                205
        },
Best Regards,

John

Hi,

Scaing is done as a part of capture itself. Scaling is not possible on interlaced inputs. Thats why saLoopBack Scale is failing. SaLoopBackfbdev will also fail with graphics since color conversion is also not possible with fbdev.

Hi Hardik,

Since the current driver code has interlaced video disabled the question is what must be done in the drivers to configure the video
capture to support interlaced inputs?

Tech Ref Man seems to indicate Scaler is fed downstream of DEI so while the scaler engine does not support scaling
of interlaced sources it doesn't have to as DEI converts interlaced sources to progressive  upstream of scaler.

The extract below from Tech Ref Man indicates this given one of its input sources is from DEI output being upstream of scaler.

12.8.1 SC Features
SC features include:
• Input– DEI output, Chroma_up output of VIP output
• Output – YUV422 YUYV Interleaved
• Horizontal/vertical cropping
• Polyphase filter for horizontal
• Polyphase filter/running average filter for vertical
• Scaling up to maximum 1920 pixels in horizontal direction and 1080 pixels in the vertical direction

Best Regards,

John

Hello,

We are facing the same v4l2 1080i capture problem.

Any progress now?

Thank you very much.