On 2/15/19 2:05 PM, Dafna Hirschfeld wrote:
> In the decoder, save the inner reference frame in the same
> format as the capture buffer.
> The decoder writes directly to the capture buffer and then
> the capture buffer is copied to the reference buffer.
> This will simplify the stateless decoder.
>
> Signed-off-by: Dafna Hirschfeld <daf...@gmail.com>
> ---
> drivers/media/platform/vicodec/codec-fwht.c | 68 +++--
> drivers/media/platform/vicodec/codec-fwht.h | 10 +-
> .../media/platform/vicodec/codec-v4l2-fwht.c | 280 +++---------------
> .../media/platform/vicodec/codec-v4l2-fwht.h | 3 +
> drivers/media/platform/vicodec/vicodec-core.c | 2 +
> 5 files changed, 103 insertions(+), 260 deletions(-)
>
> diff --git a/drivers/media/platform/vicodec/codec-fwht.c
> b/drivers/media/platform/vicodec/codec-fwht.c
> index d1d6085da9f1..42849476069b 100644
> --- a/drivers/media/platform/vicodec/codec-fwht.c
> +++ b/drivers/media/platform/vicodec/codec-fwht.c
> @@ -632,12 +632,13 @@ static int decide_blocktype(const u8 *cur, const u8
> *reference,
> return vari <= vard ? IBLOCK : PBLOCK;
> }
>
> -static void fill_decoder_block(u8 *dst, const s16 *input, int stride)
> +static void fill_decoder_block(u8 *dst, const s16 *input, int stride,
> + unsigned int dst_step)
> {
> int i, j;
>
> for (i = 0; i < 8; i++) {
> - for (j = 0; j < 8; j++, input++, dst++) {
> + for (j = 0; j < 8; j++, input++, dst += dst_step) {
> if (*input < 0)
> *dst = 0;
> else if (*input > 255)
> @@ -645,17 +646,19 @@ static void fill_decoder_block(u8 *dst, const s16
> *input, int stride)
> else
> *dst = *input;
> }
> - dst += stride - 8;
> + dst += stride - (8 * dst_step);
> }
> }
>
> -static void add_deltas(s16 *deltas, const u8 *ref, int stride)
> +static void add_deltas(s16 *deltas, const u8 *ref, int stride,
> + unsigned int ref_step)
> {
> int k, l;
>
> for (k = 0; k < 8; k++) {
> for (l = 0; l < 8; l++) {
> - *deltas += *ref++;
> + *deltas += *ref;
> + ref += ref_step;
> /*
> * Due to quantizing, it might possible that the
> * decoded coefficients are slightly out of range
> @@ -666,7 +669,7 @@ static void add_deltas(s16 *deltas, const u8 *ref, int
> stride)
> *deltas = 255;
> deltas++;
> }
> - ref += stride - 8;
> + ref += stride - (8 * ref_step);
> }
> }
>
> @@ -711,8 +714,8 @@ static u32 encode_plane(u8 *input, u8 *refp, __be16
> **rlco, __be16 *rlco_max,
> ifwht(cf->de_coeffs, cf->de_fwht, blocktype);
>
> if (blocktype == PBLOCK)
> - add_deltas(cf->de_fwht, refp, 8);
> - fill_decoder_block(refp, cf->de_fwht, 8);
> + add_deltas(cf->de_fwht, refp, 8, 1);
> + fill_decoder_block(refp, cf->de_fwht, 8, 1);
> }
>
> input += 8 * input_step;
> @@ -821,8 +824,10 @@ u32 fwht_encode_frame(struct fwht_raw_frame *frm,
> return encoding;
> }
>
> -static bool decode_plane(struct fwht_cframe *cf, const __be16 **rlco, u8
> *ref,
> - u32 height, u32 width, u32 coded_width,
> +static bool decode_plane(struct fwht_cframe *cf, const __be16 **rlco,
> + const u8 *ref, u32 height, u32 width, u32 coded_width,
> + u8 *dst, unsigned int dst_stride,
> + unsigned int dst_step, unsigned int ref_step,
> bool uncompressed, const __be16 *end_of_rlco_buf)
> {
> unsigned int copies = 0;
> @@ -834,10 +839,15 @@ static bool decode_plane(struct fwht_cframe *cf, const
> __be16 **rlco, u8 *ref,
> height = round_up(height, 8);
>
> if (uncompressed) {
> + int i;
> +
> if (end_of_rlco_buf + 1 < *rlco + width * height / 2)
> return false;
> - memcpy(ref, *rlco, width * height);
> - *rlco += width * height / 2;
> + for (i = 0; i < height; i++) {
> + memcpy(dst, *rlco, width);
> + dst += dst_stride;
> + *rlco += width / 2;
> + }
> return true;
> }
>
> @@ -849,15 +859,18 @@ static bool decode_plane(struct fwht_cframe *cf, const
> __be16 **rlco, u8 *ref,
> */
> for (j = 0; j < height / 8; j++) {
> for (i = 0; i < width / 8; i++) {
> - u8 *refp = ref + j * 8 * coded_width + i * 8;
> + const u8 *refp = ref + j * 8 * ref_step * coded_width +
> + i * 8 * ref_step;
> + u8 *dstp = dst + j * 8 * dst_stride + i * 8 * dst_step;
>
> if (copies) {
> memcpy(cf->de_fwht, copy, sizeof(copy));
> if (stat & PFRAME_BIT)
> add_deltas(cf->de_fwht, refp,
> - coded_width);
> - fill_decoder_block(refp, cf->de_fwht,
> - coded_width);
> + coded_width * ref_step,
> + ref_step);
> + fill_decoder_block(dstp, cf->de_fwht,
> + dst_stride, dst_step);
> copies--;
> continue;
> }
> @@ -877,23 +890,28 @@ static bool decode_plane(struct fwht_cframe *cf, const
> __be16 **rlco, u8 *ref,
> if (copies)
> memcpy(copy, cf->de_fwht, sizeof(copy));
> if (stat & PFRAME_BIT)
> - add_deltas(cf->de_fwht, refp, coded_width);
> - fill_decoder_block(refp, cf->de_fwht, coded_width);
> + add_deltas(cf->de_fwht, refp,
> + coded_width * ref_step, ref_step);
> + fill_decoder_block(dstp, cf->de_fwht, dst_stride,
> + dst_step);
> }
> }
> return true;
> }
>
> -bool fwht_decode_frame(struct fwht_cframe *cf, struct fwht_raw_frame *ref,
> +bool fwht_decode_frame(struct fwht_cframe *cf, const struct fwht_raw_frame
> *ref,
> u32 hdr_flags, unsigned int components_num,
> unsigned int width, unsigned int height,
> - unsigned int coded_width)
> + unsigned int coded_width, struct fwht_raw_frame *dst,
> + unsigned int dst_stride, unsigned int dst_chroma_stride)
> {
> const __be16 *rlco = cf->rlc_data;
> const __be16 *end_of_rlco_buf = cf->rlc_data +
> (cf->size / sizeof(*rlco)) - 1;
>
> if (!decode_plane(cf, &rlco, ref->luma, height, width, coded_width,
> + dst->luma, dst_stride, dst->luma_alpha_step,
> + ref->luma_alpha_step,
> hdr_flags & FWHT_FL_LUMA_IS_UNCOMPRESSED,
> end_of_rlco_buf))
> return false;
> @@ -909,11 +927,15 @@ bool fwht_decode_frame(struct fwht_cframe *cf, struct
> fwht_raw_frame *ref,
> w /= 2;
> c /= 2;
> }
> - if (!decode_plane(cf, &rlco, ref->cb, h, w, c,
> + if (!decode_plane(cf, &rlco, ref->cb, h, w, c, dst->cb,
> + dst_chroma_stride, dst->chroma_step,
> + ref->chroma_step,
> hdr_flags & FWHT_FL_CB_IS_UNCOMPRESSED,
> end_of_rlco_buf))
> return false;
> - if (!decode_plane(cf, &rlco, ref->cr, h, w, c,
> + if (!decode_plane(cf, &rlco, ref->cr, h, w, c, dst->cr,
> + dst_chroma_stride, dst->chroma_step,
> + ref->chroma_step,
> hdr_flags & FWHT_FL_CR_IS_UNCOMPRESSED,
> end_of_rlco_buf))
> return false;
> @@ -922,6 +944,8 @@ bool fwht_decode_frame(struct fwht_cframe *cf, struct
> fwht_raw_frame *ref,
> if (components_num == 4)
> if (!decode_plane(cf, &rlco, ref->alpha, height, width,
> coded_width,
> + dst->alpha, dst_stride, dst->luma_alpha_step,
> + ref->luma_alpha_step,
> hdr_flags & FWHT_FL_ALPHA_IS_UNCOMPRESSED,
> end_of_rlco_buf))
> return false;
> diff --git a/drivers/media/platform/vicodec/codec-fwht.h
> b/drivers/media/platform/vicodec/codec-fwht.h
> index 8a4f07d466cb..eab4a97aa132 100644
> --- a/drivers/media/platform/vicodec/codec-fwht.h
> +++ b/drivers/media/platform/vicodec/codec-fwht.h
> @@ -140,9 +140,9 @@ u32 fwht_encode_frame(struct fwht_raw_frame *frm,
> bool is_intra, bool next_is_intra,
> unsigned int width, unsigned int height,
> unsigned int stride, unsigned int chroma_stride);
> -bool fwht_decode_frame(struct fwht_cframe *cf, struct fwht_raw_frame *ref,
> - u32 hdr_flags, unsigned int components_num,
> - unsigned int width, unsigned int height,
> - unsigned int coded_width);
> -
> +bool fwht_decode_frame(struct fwht_cframe *cf, const struct fwht_raw_frame
> *ref,
> + u32 hdr_flags, unsigned int components_num,
> + unsigned int width, unsigned int height,
> + unsigned int coded_width, struct fwht_raw_frame *dst,
> + unsigned int dst_stride, unsigned int dst_chroma_stride);
> #endif
> diff --git a/drivers/media/platform/vicodec/codec-v4l2-fwht.c
> b/drivers/media/platform/vicodec/codec-v4l2-fwht.c
> index 728ed5012aed..40b1f4901fd3 100644
> --- a/drivers/media/platform/vicodec/codec-v4l2-fwht.c
> +++ b/drivers/media/platform/vicodec/codec-v4l2-fwht.c
> @@ -75,6 +75,35 @@ const struct v4l2_fwht_pixfmt_info
> *v4l2_fwht_get_pixfmt(u32 idx)
> return v4l2_fwht_pixfmts + idx;
> }
>
> +void copy_cap_to_ref(u8 *cap, const struct v4l2_fwht_pixfmt_info *info,
> + struct v4l2_fwht_state *state)
Should be a static function and cap should be const u8 *.
> +{
> + int plane_idx;
> + u8 *p_ref = state->ref_frame.buf;
> +
> + for (plane_idx = 0; plane_idx < info->planes_num; plane_idx++) {
> + int i;
> + bool is_chroma_plane = plane_idx == 1 || plane_idx == 2;
> + unsigned int h_div = is_chroma_plane ? info->height_div : 1;
> + unsigned int w_div = is_chroma_plane ? info->width_div : 1;
> + unsigned int step = is_chroma_plane ? info->chroma_step :
> + info->luma_alpha_step;
> + unsigned int stride_div =
> + (info->planes_num == 3 && plane_idx > 0) ? 2 : 1;
> +
> + u8 *row_dst = cap;
I'd call this row_cap. 'dst' is confusing since you expect a memcpy to write
to the destination address, but this isn't the 'destination', it is just a
row in the capture buffer.
It really confused me for a bit :-)
Regards,
Hans
> + u8 *row_ref = p_ref;
> +
> + for (i = 0; i < state->visible_height / h_div; i++) {
> + memcpy(row_ref, row_dst, step * state->visible_width /
> w_div);
> + row_ref += step * state->coded_width / w_div;
> + row_dst += state->stride / stride_div;
> + }
> + cap += (state->stride / stride_div) * (state->coded_height /
> h_div);
> + p_ref += (step * state->coded_width / w_div) *
> (state->coded_height / h_div);
> + }
> +}
> +
> static int prepare_raw_frame(struct fwht_raw_frame *rf,
> const struct v4l2_fwht_pixfmt_info *info, u8 *buf,
> unsigned int size)
> @@ -243,14 +272,16 @@ int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8
> *p_in, u8 *p_out)
>
> int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
> {
> - unsigned int i, j, k;
> u32 flags;
> struct fwht_cframe cf;
> - u8 *p, *ref_p;
> unsigned int components_num = 3;
> unsigned int version;
> const struct v4l2_fwht_pixfmt_info *info;
> unsigned int hdr_width_div, hdr_height_div;
> + struct fwht_raw_frame dst_rf;
> + unsigned int dst_chroma_stride = state->stride;
> + unsigned int dst_size = state->stride * state->coded_height;
> + unsigned int ref_size;
>
> if (!state->info)
> return -EINVAL;
> @@ -298,241 +329,24 @@ int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8
> *p_in, u8 *p_out)
> hdr_height_div != info->height_div)
> return -EINVAL;
>
> - if (!fwht_decode_frame(&cf, &state->ref_frame, flags, components_num,
> - state->visible_width, state->visible_height,
> - state->coded_width))
> + if (prepare_raw_frame(&dst_rf, info, p_out, dst_size))
> return -EINVAL;
> + if (info->id == V4L2_PIX_FMT_YUV420 ||
> + info->id == V4L2_PIX_FMT_YVU420 ||
> + info->id == V4L2_PIX_FMT_YUV422P)
> + dst_chroma_stride /= 2;
>
> - /*
> - * TODO - handle the case where the compressed stream encodes a
> - * different format than the requested decoded format.
> - */
> - switch (state->info->id) {
> - case V4L2_PIX_FMT_GREY:
> - ref_p = state->ref_frame.luma;
> - for (i = 0; i < state->coded_height; i++) {
> - memcpy(p_out, ref_p, state->visible_width);
> - p_out += state->stride;
> - ref_p += state->coded_width;
> - }
> - break;
> - case V4L2_PIX_FMT_YUV420:
> - case V4L2_PIX_FMT_YUV422P:
> - ref_p = state->ref_frame.luma;
> - for (i = 0; i < state->coded_height; i++) {
> - memcpy(p_out, ref_p, state->visible_width);
> - p_out += state->stride;
> - ref_p += state->coded_width;
> - }
> -
> - ref_p = state->ref_frame.cb;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - memcpy(p_out, ref_p, state->visible_width / 2);
> - p_out += state->stride / 2;
> - ref_p += state->coded_width / 2;
> - }
> - ref_p = state->ref_frame.cr;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - memcpy(p_out, ref_p, state->visible_width / 2);
> - p_out += state->stride / 2;
> - ref_p += state->coded_width / 2;
> - }
> - break;
> - case V4L2_PIX_FMT_YVU420:
> - ref_p = state->ref_frame.luma;
> - for (i = 0; i < state->coded_height; i++) {
> - memcpy(p_out, ref_p, state->visible_width);
> - p_out += state->stride;
> - ref_p += state->coded_width;
> - }
> -
> - ref_p = state->ref_frame.cr;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - memcpy(p_out, ref_p, state->visible_width / 2);
> - p_out += state->stride / 2;
> - ref_p += state->coded_width / 2;
> - }
> - ref_p = state->ref_frame.cb;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - memcpy(p_out, ref_p, state->visible_width / 2);
> - p_out += state->stride / 2;
> - ref_p += state->coded_width / 2;
> - }
> - break;
> - case V4L2_PIX_FMT_NV12:
> - case V4L2_PIX_FMT_NV16:
> - case V4L2_PIX_FMT_NV24:
> - ref_p = state->ref_frame.luma;
> - for (i = 0; i < state->coded_height; i++) {
> - memcpy(p_out, ref_p, state->visible_width);
> - p_out += state->stride;
> - ref_p += state->coded_width;
> - }
> + ref_size = state->coded_width * state->coded_height *
> + info->luma_alpha_step;
>
> - k = 0;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.cb[k];
> - *p++ = state->ref_frame.cr[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_NV21:
> - case V4L2_PIX_FMT_NV61:
> - case V4L2_PIX_FMT_NV42:
> - ref_p = state->ref_frame.luma;
> - for (i = 0; i < state->coded_height; i++) {
> - memcpy(p_out, ref_p, state->visible_width);
> - p_out += state->stride;
> - ref_p += state->coded_width;
> - }
> + if (prepare_raw_frame(&state->ref_frame, info, state->ref_frame.buf,
> + ref_size))
> + return -EINVAL;
>
> - k = 0;
> - for (i = 0; i < state->coded_height / 2; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.cr[k];
> - *p++ = state->ref_frame.cb[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_YUYV:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cb[k / 2];
> - *p++ = state->ref_frame.luma[k + 1];
> - *p++ = state->ref_frame.cr[k / 2];
> - k += 2;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_YVYU:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cr[k / 2];
> - *p++ = state->ref_frame.luma[k + 1];
> - *p++ = state->ref_frame.cb[k / 2];
> - k += 2;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_UYVY:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.cb[k / 2];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cr[k / 2];
> - *p++ = state->ref_frame.luma[k + 1];
> - k += 2;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_VYUY:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width / 2; j++)
> {
> - *p++ = state->ref_frame.cr[k / 2];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cb[k / 2];
> - *p++ = state->ref_frame.luma[k + 1];
> - k += 2;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_RGB24:
> - case V4L2_PIX_FMT_HSV24:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = state->ref_frame.cr[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cb[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_BGR24:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = state->ref_frame.cb[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cr[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_RGB32:
> - case V4L2_PIX_FMT_XRGB32:
> - case V4L2_PIX_FMT_HSV32:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = 0;
> - *p++ = state->ref_frame.cr[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cb[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_BGR32:
> - case V4L2_PIX_FMT_XBGR32:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = state->ref_frame.cb[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cr[k];
> - *p++ = 0;
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_ARGB32:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = state->ref_frame.alpha[k];
> - *p++ = state->ref_frame.cr[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cb[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - case V4L2_PIX_FMT_ABGR32:
> - k = 0;
> - for (i = 0; i < state->coded_height; i++) {
> - for (j = 0, p = p_out; j < state->coded_width; j++) {
> - *p++ = state->ref_frame.cb[k];
> - *p++ = state->ref_frame.luma[k];
> - *p++ = state->ref_frame.cr[k];
> - *p++ = state->ref_frame.alpha[k];
> - k++;
> - }
> - p_out += state->stride;
> - }
> - break;
> - default:
> + if (!fwht_decode_frame(&cf, &state->ref_frame, flags, components_num,
> + state->visible_width, state->visible_height,
> + state->coded_width, &dst_rf, state->stride,
> + dst_chroma_stride))
> return -EINVAL;
> - }
> return 0;
> }
> diff --git a/drivers/media/platform/vicodec/codec-v4l2-fwht.h
> b/drivers/media/platform/vicodec/codec-v4l2-fwht.h
> index aa6fa90a48be..75343cdf45e2 100644
> --- a/drivers/media/platform/vicodec/codec-v4l2-fwht.h
> +++ b/drivers/media/platform/vicodec/codec-v4l2-fwht.h
> @@ -53,6 +53,9 @@ const struct v4l2_fwht_pixfmt_info
> *v4l2_fwht_default_fmt(u32 width_div,
> u32 pixenc,
> unsigned int
> start_idx);
>
> +void copy_cap_to_ref(u8 *cap, const struct v4l2_fwht_pixfmt_info *info,
> + struct v4l2_fwht_state *state);
> +
> int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
> int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
>
> diff --git a/drivers/media/platform/vicodec/vicodec-core.c
> b/drivers/media/platform/vicodec/vicodec-core.c
> index 8d38bc1ef079..335a931fdf02 100644
> --- a/drivers/media/platform/vicodec/vicodec-core.c
> +++ b/drivers/media/platform/vicodec/vicodec-core.c
> @@ -194,6 +194,8 @@ static int device_process(struct vicodec_ctx *ctx,
> ret = v4l2_fwht_decode(state, p_src, p_dst);
> if (ret < 0)
> return ret;
> + copy_cap_to_ref(p_dst, ctx->state.info, &ctx->state);
> +
> vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage);
> }
>
>
