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Message-ID: <AM6PR04MB63416C297516295B946F4E20E74F9@AM6PR04MB6341.eurprd04.prod.outlook.com>
Date: Wed, 21 Sep 2022 01:50:24 +0000
From: Ming Qian <ming.qian@....com>
To: "Mirela Rabulea (OSS)" <mirela.rabulea@....nxp.com>,
"mchehab@...nel.org" <mchehab@...nel.org>,
"hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>
CC: "shawnguo@...nel.org" <shawnguo@...nel.org>,
"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"festevam@...il.com" <festevam@...il.com>,
"X.H. Bao" <xiahong.bao@....com>, dl-linux-imx <linux-imx@....com>,
"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH 1/2] media: imx-jpeg: Implement g_selection and
s_selection
>Hi Ming,
>
>On 01.08.2022 13:29, Ming Qian wrote:
>> The codec can support any image size WxH, with arbitrary W (image
>> width) and H (image height) dimensions.
>>
>> But it requires buffer alignment,
>> so driver can report the aligned resolution through the g_fmt, and
>> report the actual resolution through the g_selection.
>>
>> For encoder, it even support to encode a smaller jpeg than the
>> original picture through s_selection api.
>
>Please add a mention here that "For the decoder, we do not support cropping
>a portion smaller than the original picture, due to hardware limitations
>(wrapper side)."
>
>>
>> Signed-off-by: Ming Qian <ming.qian@....com>
>> ---
>> .../media/platform/nxp/imx-jpeg/mxc-jpeg.c | 327 +++++++++++-------
>> .../media/platform/nxp/imx-jpeg/mxc-jpeg.h | 1 +
>> 2 files changed, 208 insertions(+), 120 deletions(-)
>>
>> diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
>> b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
>> index ec13394bdddd..89f432b8c6df 100644
>> --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
>> +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
>> @@ -924,8 +924,8 @@ static void mxc_jpeg_config_enc_desc(struct
>vb2_buffer *out_buf,
>> jpeg->slot_data[slot].cfg_stream_size =
>> mxc_jpeg_setup_cfg_stream(cfg_stream_vaddr,
>> q_data->fmt->fourcc,
>> - q_data->w,
>> - q_data->h);
>> + q_data->crop.width,
>> + q_data->crop.height);
>>
>> /* chain the config descriptor with the encoding descriptor */
>> cfg_desc->next_descpt_ptr = desc_handle | MXC_NXT_DESCPT_EN;
>@@
>> -942,11 +942,13 @@ static void mxc_jpeg_config_enc_desc(struct
>vb2_buffer *out_buf,
>> desc->next_descpt_ptr = 0; /* end of chain */
>>
>> /* use adjusted resolution for CAST IP job */
>> - w = q_data->w_adjusted;
>> - h = q_data->h_adjusted;
>> + w = q_data->crop.width;
>> + h = q_data->crop.height;
>> + v4l_bound_align_image(&w, w, MXC_JPEG_MAX_WIDTH, q_data-
>>fmt->h_align,
>> + &h, h, MXC_JPEG_MAX_HEIGHT, q_data->fmt-
>>v_align, 0);
>> mxc_jpeg_set_res(desc, w, h);
>> - mxc_jpeg_set_line_pitch(desc, w * (q_data->fmt->depth / 8));
>> - mxc_jpeg_set_bufsize(desc, desc->line_pitch * h);
>> + mxc_jpeg_set_line_pitch(desc, q_data->bytesperline[0]);
>> + mxc_jpeg_set_bufsize(desc, q_data->sizeimage[0]);
>> img_fmt = mxc_jpeg_fourcc_to_imgfmt(q_data->fmt->fourcc);
>> if (img_fmt == MXC_JPEG_INVALID)
>> dev_err(jpeg->dev, "No valid image format detected\n"); @@
>-995,6
>> +997,10 @@ static bool mxc_jpeg_source_change(struct mxc_jpeg_ctx *ctx,
>> q_data_cap->fmt = jpeg_src_buf->fmt;
>> q_data_cap->w_adjusted = q_data_cap->w;
>> q_data_cap->h_adjusted = q_data_cap->h;
>> + q_data_cap->crop.left = 0;
>> + q_data_cap->crop.top = 0;
>> + q_data_cap->crop.width = jpeg_src_buf->w;
>> + q_data_cap->crop.height = jpeg_src_buf->h;
>>
>> /*
>> * align up the resolution for CAST IP, @@ -1007,7 +1013,7
>@@
>> static bool mxc_jpeg_source_change(struct mxc_jpeg_ctx *ctx,
>> &q_data_cap->h_adjusted,
>> q_data_cap->h_adjusted, /* adjust up */
>> MXC_JPEG_MAX_HEIGHT,
>> - 0,
>> + q_data_cap->fmt->v_align,
>> 0);
>>
>> /* setup bytesperline/sizeimage for capture queue */ @@ -
>1016,6
>> +1022,7 @@ static bool mxc_jpeg_source_change(struct mxc_jpeg_ctx *ctx,
>> notify_src_chg(ctx);
>> ctx->source_change = 1;
>> }
>> +
>> return ctx->source_change ? true : false;
>> }
>>
>> @@ -1201,30 +1208,18 @@ static int mxc_jpeg_queue_setup(struct
>vb2_queue *q,
>> {
>> struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(q);
>> struct mxc_jpeg_q_data *q_data = NULL;
>> - struct mxc_jpeg_q_data tmp_q;
>> int i;
>>
>> q_data = mxc_jpeg_get_q_data(ctx, q->type);
>> if (!q_data)
>> return -EINVAL;
>>
>> - tmp_q.fmt = q_data->fmt;
>> - tmp_q.w = q_data->w_adjusted;
>> - tmp_q.h = q_data->h_adjusted;
>> - for (i = 0; i < MXC_JPEG_MAX_PLANES; i++) {
>> - tmp_q.bytesperline[i] = q_data->bytesperline[i];
>> - tmp_q.sizeimage[i] = q_data->sizeimage[i];
>> - }
>> - mxc_jpeg_sizeimage(&tmp_q);
>> - for (i = 0; i < MXC_JPEG_MAX_PLANES; i++)
>> - tmp_q.sizeimage[i] = max(tmp_q.sizeimage[i], q_data-
>>sizeimage[i]);
>> -
>
>This is an undo from patch "Align upwards buffer size", so please add a
>"Fixes:..." for it in the commit description.
>
>> /* Handle CREATE_BUFS situation - *nplanes != 0 */
>> if (*nplanes) {
>> if (*nplanes != q_data->fmt->colplanes)
>> return -EINVAL;
>> for (i = 0; i < *nplanes; i++) {
>> - if (sizes[i] < tmp_q.sizeimage[i])
>> + if (sizes[i] < q_data->sizeimage[i])
>> return -EINVAL;
>> }
>> return 0;
>> @@ -1233,7 +1228,7 @@ static int mxc_jpeg_queue_setup(struct
>vb2_queue *q,
>> /* Handle REQBUFS situation */
>> *nplanes = q_data->fmt->colplanes;
>> for (i = 0; i < *nplanes; i++)
>> - sizes[i] = tmp_q.sizeimage[i];
>> + sizes[i] = q_data->sizeimage[i];
>>
>> return 0;
>> }
>> @@ -1366,17 +1361,17 @@ static void mxc_jpeg_bytesperline(struct
>mxc_jpeg_q_data *q, u32 precision)
>> * applies to the first plane and is divided by the same factor
>> * as the width field for the other planes
>> */
>> - q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8);
>> + q->bytesperline[0] = q->w_adjusted *
>DIV_ROUND_UP(precision, 8);
>> q->bytesperline[1] = q->bytesperline[0];
>> } else if (q->fmt->subsampling ==
>V4L2_JPEG_CHROMA_SUBSAMPLING_422) {
>> - q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8) * 2;
>> + q->bytesperline[0] = q->w_adjusted *
>DIV_ROUND_UP(precision, 8) *
>> +2;
>> q->bytesperline[1] = 0;
>> } else if (q->fmt->subsampling ==
>V4L2_JPEG_CHROMA_SUBSAMPLING_444) {
>> - q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8) * q-
>>fmt->nc;
>> + q->bytesperline[0] = q->w_adjusted *
>DIV_ROUND_UP(precision, 8) *
>> +q->fmt->nc;
>> q->bytesperline[1] = 0;
>> } else {
>> /* grayscale */
>> - q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8);
>> + q->bytesperline[0] = q->w_adjusted *
>DIV_ROUND_UP(precision, 8);
>> q->bytesperline[1] = 0;
>> }
>> }
>> @@ -1395,7 +1390,7 @@ static void mxc_jpeg_sizeimage(struct
>mxc_jpeg_q_data *q)
>> /* jpeg stream size must be multiple of 1K */
>> q->sizeimage[0] = ALIGN(q->sizeimage[0], 1024);
>> } else {
>> - q->sizeimage[0] = q->bytesperline[0] * q->h;
>> + q->sizeimage[0] = q->bytesperline[0] * q->h_adjusted;
>> q->sizeimage[1] = 0;
>> if (q->fmt->fourcc == V4L2_PIX_FMT_NV12M)
>> q->sizeimage[1] = q->sizeimage[0] / 2; @@ -1619,6
>+1614,10 @@
>> static void mxc_jpeg_set_default_params(struct mxc_jpeg_ctx *ctx)
>> q[i]->h = MXC_JPEG_DEFAULT_HEIGHT;
>> q[i]->w_adjusted = MXC_JPEG_DEFAULT_WIDTH;
>> q[i]->h_adjusted = MXC_JPEG_DEFAULT_HEIGHT;
>> + q[i]->crop.left = 0;
>> + q[i]->crop.top = 0;
>> + q[i]->crop.width = MXC_JPEG_DEFAULT_WIDTH;
>> + q[i]->crop.height = MXC_JPEG_DEFAULT_HEIGHT;
>> mxc_jpeg_bytesperline(q[i], q[i]->fmt->precision);
>> mxc_jpeg_sizeimage(q[i]);
>> }
>> @@ -1786,55 +1785,84 @@ static int mxc_jpeg_enum_fmt_vid_out(struct
>file *file, void *priv,
>> return 0;
>> }
>>
>> -static int mxc_jpeg_try_fmt(struct v4l2_format *f, const struct
>mxc_jpeg_fmt *fmt,
>> - struct mxc_jpeg_ctx *ctx, int q_type)
>> +static u32 mxc_jpeg_get_fmt_type(struct mxc_jpeg_ctx *ctx, u32 type)
>> +{
>> + if (ctx->mxc_jpeg->mode == MXC_JPEG_DECODE)
>> + return V4L2_TYPE_IS_OUTPUT(type) ?
>MXC_JPEG_FMT_TYPE_ENC : MXC_JPEG_FMT_TYPE_RAW;
>> + else
>> + return V4L2_TYPE_IS_CAPTURE(type) ?
>MXC_JPEG_FMT_TYPE_ENC :
>> +MXC_JPEG_FMT_TYPE_RAW; }
>> +
>> +static u32 mxc_jpeg_get_default_fourcc(struct mxc_jpeg_ctx *ctx, u32
>> +type)
>> {
>> + if (ctx->mxc_jpeg->mode == MXC_JPEG_DECODE)
>> + return V4L2_TYPE_IS_OUTPUT(type) ? V4L2_PIX_FMT_JPEG :
>MXC_JPEG_DEFAULT_PFMT;
>> + else
>> + return V4L2_TYPE_IS_CAPTURE(type) ? V4L2_PIX_FMT_JPEG :
>> +MXC_JPEG_DEFAULT_PFMT; }
>> +
>> +static int mxc_jpeg_try_fmt(struct v4l2_format *f,
>> + struct mxc_jpeg_ctx *ctx, struct mxc_jpeg_q_data
>*q_data) {
>> + const struct mxc_jpeg_fmt *fmt;
>> struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
>> struct v4l2_plane_pix_format *pfmt;
>> + u32 fourcc = f->fmt.pix_mp.pixelformat;
>> u32 w = (pix_mp->width < MXC_JPEG_MAX_WIDTH) ?
>> pix_mp->width : MXC_JPEG_MAX_WIDTH;
>> u32 h = (pix_mp->height < MXC_JPEG_MAX_HEIGHT) ?
>> pix_mp->height : MXC_JPEG_MAX_HEIGHT;
>> int i;
>> - struct mxc_jpeg_q_data tmp_q;
>> +
>> + fmt = mxc_jpeg_find_format(ctx, fourcc);
>> + if (!fmt || fmt->flags != mxc_jpeg_get_fmt_type(ctx, f->type)) {
>> + dev_warn(ctx->mxc_jpeg->dev, "Format not
>supported: %c%c%c%c, use the default.\n",
>> + (fourcc & 0xff),
>> + (fourcc >> 8) & 0xff,
>> + (fourcc >> 16) & 0xff,
>> + (fourcc >> 24) & 0xff);
>> + fourcc = mxc_jpeg_get_default_fourcc(ctx, f->type);
>> + fmt = mxc_jpeg_find_format(ctx, fourcc);
>> + if (!fmt)
>> + return -EINVAL;
>> + f->fmt.pix_mp.pixelformat = fourcc;
>> + }
>> + q_data->fmt = fmt;
>>
>> memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
>> pix_mp->field = V4L2_FIELD_NONE;
>> pix_mp->num_planes = fmt->colplanes;
>> pix_mp->pixelformat = fmt->fourcc;
>>
>> - pix_mp->width = w;
>> - pix_mp->height = h;
>> - v4l_bound_align_image(&w,
>> + q_data->w = w;
>> + q_data->h = h;
>> + q_data->w_adjusted = w;
>> + q_data->h_adjusted = h;
>> + v4l_bound_align_image(&q_data->w_adjusted,
>> w, /* adjust upwards*/
>> MXC_JPEG_MAX_WIDTH,
>> fmt->h_align,
>> - &h,
>> + &q_data->h_adjusted,
>> h, /* adjust upwards*/
>> MXC_JPEG_MAX_HEIGHT,
>> - 0,
>> + fmt->v_align,
>> 0);
>> -
>> - /* get user input into the tmp_q */
>> - tmp_q.w = w;
>> - tmp_q.h = h;
>> - tmp_q.fmt = fmt;
>> for (i = 0; i < pix_mp->num_planes; i++) {
>> pfmt = &pix_mp->plane_fmt[i];
>> - tmp_q.bytesperline[i] = pfmt->bytesperline;
>> - tmp_q.sizeimage[i] = pfmt->sizeimage;
>> + q_data->bytesperline[i] = pfmt->bytesperline;
>> + q_data->sizeimage[i] = pfmt->sizeimage;
>> }
>>
>> - /* calculate bytesperline & sizeimage into the tmp_q */
>> - mxc_jpeg_bytesperline(&tmp_q, fmt->precision);
>> - mxc_jpeg_sizeimage(&tmp_q);
>> + /* calculate bytesperline & sizeimage */
>> + mxc_jpeg_bytesperline(q_data, fmt->precision);
>> + mxc_jpeg_sizeimage(q_data);
>>
>> /* adjust user format according to our calculations */
>> for (i = 0; i < pix_mp->num_planes; i++) {
>> pfmt = &pix_mp->plane_fmt[i];
>> memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
>> - pfmt->bytesperline = tmp_q.bytesperline[i];
>> - pfmt->sizeimage = tmp_q.sizeimage[i];
>> + pfmt->bytesperline = q_data->bytesperline[i];
>> + pfmt->sizeimage = q_data->sizeimage[i];
>> }
>>
>> /* fix colorspace information to sRGB for both output & capture */
>> @@ -1848,6 +1876,16 @@ static int mxc_jpeg_try_fmt(struct v4l2_format *f,
>const struct mxc_jpeg_fmt *fm
>> */
>> pix_mp->quantization = V4L2_QUANTIZATION_FULL_RANGE;
>>
>> + if (fmt->flags == MXC_JPEG_FMT_TYPE_RAW) {
>> + q_data->crop.left = 0;
>> + q_data->crop.top = 0;
>> + q_data->crop.width = q_data->w;
>> + q_data->crop.height = q_data->h;
>> + }
>> +
>> + pix_mp->width = q_data->w_adjusted;
>> + pix_mp->height = q_data->h_adjusted;
>> +
>> return 0;
>> }
>>
>> @@ -1857,29 +1895,14 @@ static int mxc_jpeg_try_fmt_vid_cap(struct file
>*file, void *priv,
>> struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(priv);
>> struct mxc_jpeg_dev *jpeg = ctx->mxc_jpeg;
>> struct device *dev = jpeg->dev;
>> - const struct mxc_jpeg_fmt *fmt;
>> - u32 fourcc = f->fmt.pix_mp.pixelformat;
>> -
>> - int q_type = (jpeg->mode == MXC_JPEG_DECODE) ?
>> - MXC_JPEG_FMT_TYPE_RAW : MXC_JPEG_FMT_TYPE_ENC;
>> + struct mxc_jpeg_q_data tmp_q;
>>
>> if (!V4L2_TYPE_IS_MULTIPLANAR(f->type)) {
>> dev_err(dev, "TRY_FMT with Invalid type: %d\n", f->type);
>> return -EINVAL;
>> }
>>
>> - fmt = mxc_jpeg_find_format(ctx, fourcc);
>> - if (!fmt || fmt->flags != q_type) {
>> - dev_warn(dev, "Format not supported: %c%c%c%c, use the
>default.\n",
>> - (fourcc & 0xff),
>> - (fourcc >> 8) & 0xff,
>> - (fourcc >> 16) & 0xff,
>> - (fourcc >> 24) & 0xff);
>> - f->fmt.pix_mp.pixelformat = (jpeg->mode ==
>MXC_JPEG_DECODE) ?
>> - MXC_JPEG_DEFAULT_PFMT :
>V4L2_PIX_FMT_JPEG;
>> - fmt = mxc_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat);
>> - }
>> - return mxc_jpeg_try_fmt(f, fmt, ctx, q_type);
>> + return mxc_jpeg_try_fmt(f, ctx, &tmp_q);
>> }
>>
>> static int mxc_jpeg_try_fmt_vid_out(struct file *file, void *priv,
>> @@ -1888,88 +1911,55 @@ static int mxc_jpeg_try_fmt_vid_out(struct file
>*file, void *priv,
>> struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(priv);
>> struct mxc_jpeg_dev *jpeg = ctx->mxc_jpeg;
>> struct device *dev = jpeg->dev;
>> - const struct mxc_jpeg_fmt *fmt;
>> - u32 fourcc = f->fmt.pix_mp.pixelformat;
>> -
>> - int q_type = (jpeg->mode == MXC_JPEG_ENCODE) ?
>> - MXC_JPEG_FMT_TYPE_RAW : MXC_JPEG_FMT_TYPE_ENC;
>> + struct mxc_jpeg_q_data tmp_q;
>>
>> if (!V4L2_TYPE_IS_MULTIPLANAR(f->type)) {
>> dev_err(dev, "TRY_FMT with Invalid type: %d\n", f->type);
>> return -EINVAL;
>> }
>>
>> - fmt = mxc_jpeg_find_format(ctx, fourcc);
>> - if (!fmt || fmt->flags != q_type) {
>> - dev_warn(dev, "Format not supported: %c%c%c%c, use the
>default.\n",
>> - (fourcc & 0xff),
>> - (fourcc >> 8) & 0xff,
>> - (fourcc >> 16) & 0xff,
>> - (fourcc >> 24) & 0xff);
>> - f->fmt.pix_mp.pixelformat = (jpeg->mode ==
>MXC_JPEG_ENCODE) ?
>> - MXC_JPEG_DEFAULT_PFMT :
>V4L2_PIX_FMT_JPEG;
>> - fmt = mxc_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat);
>> - }
>> - return mxc_jpeg_try_fmt(f, fmt, ctx, q_type);
>> + return mxc_jpeg_try_fmt(f, ctx, &tmp_q); }
>
>Lots of changes here, looks cleaner like this, less code duplication.
>Regression tests look ok, hope we did not miss anything.
>
>> +
>> +static void mxc_jpeg_s_parsed_fmt(struct mxc_jpeg_ctx *ctx, struct
>> +v4l2_format *f) {
>> + struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
>> + struct mxc_jpeg_q_data *q_data_cap;
>> +
>> + if (ctx->mxc_jpeg->mode != MXC_JPEG_DECODE
>|| !V4L2_TYPE_IS_CAPTURE(f->type))
>> + return;
>> + if (!ctx->header_parsed)
>> + return;
>> +
>> + q_data_cap = mxc_jpeg_get_q_data(ctx, f->type);
>> + pix_mp->pixelformat = pix_mp->pixelformat;
>
>What's the purpose of the above line? Was it meant to be q_data_cap->fmt-
>>fourcc?
It's redundant in this patch,
and in the second patch of this patch set,
it will be changed to:
pix_mp->pixelformat = mxc_jpeg_try_fourcc(ctx, pix_mp->pixelformat);
>
>> + pix_mp->width = q_data_cap->w;
>> + pix_mp->height = q_data_cap->h;
>> }
>>
>> static int mxc_jpeg_s_fmt(struct mxc_jpeg_ctx *ctx,
>> struct v4l2_format *f)
>> {
>> struct vb2_queue *vq;
>> - struct mxc_jpeg_q_data *q_data = NULL;
>> - struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
>> struct mxc_jpeg_dev *jpeg = ctx->mxc_jpeg;
>> - int i;
>>
>> vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
>> if (!vq)
>> return -EINVAL;
>>
>> - q_data = mxc_jpeg_get_q_data(ctx, f->type);
>> -
>> if (vb2_is_busy(vq)) {
>> v4l2_err(&jpeg->v4l2_dev, "queue busy\n");
>> return -EBUSY;
>> }
>>
>> - q_data->fmt = mxc_jpeg_find_format(ctx, pix_mp->pixelformat);
>> - q_data->w = pix_mp->width;
>> - q_data->h = pix_mp->height;
>> -
>> - q_data->w_adjusted = q_data->w;
>> - q_data->h_adjusted = q_data->h;
>> - /*
>> - * align up the resolution for CAST IP,
>> - * but leave the buffer resolution unchanged
>> - */
>> - v4l_bound_align_image(&q_data->w_adjusted,
>> - q_data->w_adjusted, /* adjust upwards */
>> - MXC_JPEG_MAX_WIDTH,
>> - q_data->fmt->h_align,
>> - &q_data->h_adjusted,
>> - q_data->h_adjusted, /* adjust upwards */
>> - MXC_JPEG_MAX_HEIGHT,
>> - q_data->fmt->v_align,
>> - 0);
>> -
>> - for (i = 0; i < pix_mp->num_planes; i++) {
>> - q_data->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
>> - q_data->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
>> - }
>> + mxc_jpeg_s_parsed_fmt(ctx, f);
>>
>> - return 0;
>> + return mxc_jpeg_try_fmt(f, ctx, mxc_jpeg_get_q_data(ctx, f->type));
>> }
>>
>> static int mxc_jpeg_s_fmt_vid_cap(struct file *file, void *priv,
>> struct v4l2_format *f)
>> {
>> - int ret;
>> -
>> - ret = mxc_jpeg_try_fmt_vid_cap(file, priv, f);
>> - if (ret)
>> - return ret;
>> -
>> return mxc_jpeg_s_fmt(mxc_jpeg_fh_to_ctx(priv), f);
>> }
>>
>> @@ -1983,10 +1973,6 @@ static int mxc_jpeg_s_fmt_vid_out(struct file *file,
>void *priv,
>> enum v4l2_buf_type cap_type =
>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
>> struct v4l2_format fc;
>>
>> - ret = mxc_jpeg_try_fmt_vid_out(file, priv, f);
>> - if (ret)
>> - return ret;
>> -
>> ret = mxc_jpeg_s_fmt(mxc_jpeg_fh_to_ctx(priv), f);
>> if (ret)
>> return ret;
>> @@ -2032,6 +2018,10 @@ static int mxc_jpeg_g_fmt_vid(struct file *file,
>void *priv,
>> pix_mp->width = q_data->w;
>> pix_mp->height = q_data->h;
>> pix_mp->field = V4L2_FIELD_NONE;
>> + if (q_data->fmt->flags == MXC_JPEG_FMT_TYPE_RAW) {
>> + pix_mp->width = q_data->w_adjusted;
>> + pix_mp->height = q_data->h_adjusted;
>> + }
>>
>> /* fix colorspace information to sRGB for both output & capture */
>> pix_mp->colorspace = V4L2_COLORSPACE_SRGB; @@ -2048,6
>+2038,100 @@
>> static int mxc_jpeg_g_fmt_vid(struct file *file, void *priv,
>> return 0;
>> }
>>
>> +static int mxc_jpeg_dec_g_selection(struct file *file, void *fh,
>> +struct v4l2_selection *s) {
>> + struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(fh);
>> + struct mxc_jpeg_q_data *q_data_cap;
>> +
>> + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && s->type !=
>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
>> + return -EINVAL;
>> +
>> + q_data_cap = mxc_jpeg_get_q_data(ctx, s->type);
>> +
>> + switch (s->target) {
>
>Acording to:
>https://linuxtv.org/downloads/v4l-dvb-apis/userspace-api/v4l/dev-
>decoder.html?highlight=v4l2_sel_tgt_compose_padded
>
>The following selection targets are supported on CAPTURE:
>
>V4L2_SEL_TGT_CROP_BOUNDS - corresponds to the coded resolution of the
>stream.
>
>V4L2_SEL_TGT_CROP_DEFAULT - the rectangle covering the part of the
>CAPTURE buffer that contains meaningful picture data (visible area); width
>and height will be equal to the visible resolution of the stream.
>
>V4L2_SEL_TGT_CROP - the rectangle within the coded resolution to be output
>to CAPTURE; defaults to V4L2_SEL_TGT_CROP_DEFAULT; read-only on
>hardware without additional compose/scaling capabilities.
>
These three targets are corresponds to the coded resolution of the stream,
They are called on output queue,
And the jpeg codec don't support any crop for the coded stream,
and they will be always equal to the resolution set by S_FMT() on output queue,
So I don't think it's necessary to implement them.
>> + case V4L2_SEL_TGT_COMPOSE:
>> + case V4L2_SEL_TGT_COMPOSE_DEFAULT:
>> + case V4L2_SEL_TGT_COMPOSE_PADDED:
>
>V4L2_SEL_TGT_COMPOSE_PADDED should also contain paddings, so move it
>below, as discussed internally.
>
>Regards,
>Mirela
>
>> + s->r = q_data_cap->crop;
>> + break;
>> + case V4L2_SEL_TGT_COMPOSE_BOUNDS:
>> + s->r.left = 0;
>> + s->r.top = 0;
>> + s->r.width = q_data_cap->w_adjusted;
>> + s->r.height = q_data_cap->h_adjusted;
>> + break;
>> + default:
>> + return -EINVAL;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int mxc_jpeg_enc_g_selection(struct file *file, void *fh,
>> +struct v4l2_selection *s) {
>> + struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(fh);
>> + struct mxc_jpeg_q_data *q_data_out;
>> +
>> + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type !=
>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
>> + return -EINVAL;
>> +
>> + q_data_out = mxc_jpeg_get_q_data(ctx, s->type);
>> +
>> + switch (s->target) {
>> + case V4L2_SEL_TGT_CROP_DEFAULT:
>> + case V4L2_SEL_TGT_CROP_BOUNDS:
>> + s->r.left = 0;
>> + s->r.top = 0;
>> + s->r.width = q_data_out->w;
>> + s->r.height = q_data_out->h;
>> + break;
>> + case V4L2_SEL_TGT_CROP:
>> + s->r = q_data_out->crop;
>> + break;
>> + default:
>> + return -EINVAL;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int mxc_jpeg_g_selection(struct file *file, void *fh, struct
>> +v4l2_selection *s) {
>> + struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(fh);
>> +
>> + if (ctx->mxc_jpeg->mode == MXC_JPEG_DECODE)
>> + return mxc_jpeg_dec_g_selection(file, fh, s);
>> + else
>> + return mxc_jpeg_enc_g_selection(file, fh, s); }
>> +
>> +static int mxc_jpeg_s_selection(struct file *file, void *fh, struct
>> +v4l2_selection *s) {
>> + struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(fh);
>> + struct mxc_jpeg_q_data *q_data_out;
>> +
>> + if (ctx->mxc_jpeg->mode != MXC_JPEG_ENCODE)
>> + return -ENOTTY;
>> +
>> + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type !=
>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
>> + return -EINVAL;
>> + if (s->target != V4L2_SEL_TGT_CROP)
>> + return -EINVAL;
>> +
>> + q_data_out = mxc_jpeg_get_q_data(ctx, s->type);
>> + if (s->r.left || s->r.top)
>> + return -EINVAL;
>> + if (s->r.width > q_data_out->w || s->r.height > q_data_out->h)
>> + return -EINVAL;
>> +
>> + q_data_out->crop.left = 0;
>> + q_data_out->crop.top = 0;
>> + q_data_out->crop.width = s->r.width;
>> + q_data_out->crop.height = s->r.height;
>> +
>> + return 0;
>> +}
>> +
>> static int mxc_jpeg_subscribe_event(struct v4l2_fh *fh,
>> const struct v4l2_event_subscription *sub)
>> {
>> @@ -2077,6 +2161,9 @@ static const struct v4l2_ioctl_ops
>mxc_jpeg_ioctl_ops = {
>> .vidioc_g_fmt_vid_cap_mplane = mxc_jpeg_g_fmt_vid,
>> .vidioc_g_fmt_vid_out_mplane = mxc_jpeg_g_fmt_vid,
>>
>> + .vidioc_g_selection = mxc_jpeg_g_selection,
>> + .vidioc_s_selection = mxc_jpeg_s_selection,
>> +
>> .vidioc_subscribe_event = mxc_jpeg_subscribe_event,
>> .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
>>
>> diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h
>> b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h
>> index 8104ee4a3b7a..f75dfc89ff6d 100644
>> --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h
>> +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h
>> @@ -84,6 +84,7 @@ struct mxc_jpeg_q_data {
>> int h;
>> int h_adjusted;
>> unsigned int sequence;
>> + struct v4l2_rect crop;
>> };
>>
>> struct mxc_jpeg_ctx {
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