[FFmpeg-devel] [PATCH v1 2/4] avfilter/vf_unsharp: add 10bit support

Limin Wang lance.lmwang at gmail.com
Fri Nov 8 12:28:42 EET 2019


ping the patchset except patch#1


On Mon, Oct 14, 2019 at 06:27:05PM +0800, lance.lmwang at gmail.com wrote:
> From: Limin Wang <lance.lmwang at gmail.com>
> 
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavfilter/unsharp.h    |   3 +
>  libavfilter/vf_unsharp.c | 162 +++++++++++++++++++++------------------
>  2 files changed, 90 insertions(+), 75 deletions(-)
> 
> diff --git a/libavfilter/unsharp.h b/libavfilter/unsharp.h
> index a60b30f31a..253e32dd19 100644
> --- a/libavfilter/unsharp.h
> +++ b/libavfilter/unsharp.h
> @@ -48,9 +48,12 @@ typedef struct UnsharpContext {
>      UnsharpFilterParam luma;   ///< luma parameters (width, height, amount)
>      UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
>      int hsub, vsub;
> +    int bitdepth;
> +    int bps;
>      int nb_threads;
>      int opencl;
>      int (* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out);
> +    int (* unsharp_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
>  } UnsharpContext;
>  
>  #endif /* AVFILTER_UNSHARP_H */
> diff --git a/libavfilter/vf_unsharp.c b/libavfilter/vf_unsharp.c
> index 95b4968d41..751bafe73a 100644
> --- a/libavfilter/vf_unsharp.c
> +++ b/libavfilter/vf_unsharp.c
> @@ -57,81 +57,90 @@ typedef struct TheadData {
>      int height;
>  } ThreadData;
>  
> -static int unsharp_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
> -{
> -    ThreadData *td = arg;
> -    UnsharpFilterParam *fp = td->fp;
> -    uint32_t **sc = fp->sc;
> -    uint32_t *sr = fp->sr;
> -    const uint8_t *src2 = NULL;  //silence a warning
> -    const int amount = fp->amount;
> -    const int steps_x = fp->steps_x;
> -    const int steps_y = fp->steps_y;
> -    const int scalebits = fp->scalebits;
> -    const int32_t halfscale = fp->halfscale;
> -
> -    uint8_t *dst = td->dst;
> -    const uint8_t *src = td->src;
> -    const int dst_stride = td->dst_stride;
> -    const int src_stride = td->src_stride;
> -    const int width = td->width;
> -    const int height = td->height;
> -    const int sc_offset = jobnr * 2 * steps_y;
> -    const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1);
> -    const int slice_start = (height * jobnr) / nb_jobs;
> -    const int slice_end = (height * (jobnr+1)) / nb_jobs;
> -
> -    int32_t res;
> -    int x, y, z;
> -    uint32_t tmp1, tmp2;
> -
> -    if (!amount) {
> -        av_image_copy_plane(dst + slice_start * dst_stride, dst_stride,
> -                            src + slice_start * src_stride, src_stride,
> -                            width, slice_end - slice_start);
> -        return 0;
> -    }
> -
> -    for (y = 0; y < 2 * steps_y; y++)
> -        memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x));
> -
> -    // if this is not the first tile, we start from (slice_start - steps_y),
> -    // so we can get smooth result at slice boundary
> -    if (slice_start > steps_y) {
> -        src += (slice_start - steps_y) * src_stride;
> -        dst += (slice_start - steps_y) * dst_stride;
> -    }
> -
> -    for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) {
> -        if (y < height)
> -            src2 = src;
> -
> -        memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1));
> -        for (x = -steps_x; x < width + steps_x; x++) {
> -            tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x];
> -            for (z = 0; z < steps_x * 2; z += 2) {
> -                tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1;
> -                tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2;
> -            }
> -            for (z = 0; z < steps_y * 2; z += 2) {
> -                tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1; sc[sc_offset + z + 0][x + steps_x] = tmp1;
> -                tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2; sc[sc_offset + z + 1][x + steps_x] = tmp2;
> -            }
> -            if (x >= steps_x && y >= (steps_y + slice_start)) {
> -                const uint8_t *srx = src - steps_y * src_stride + x - steps_x;
> -                uint8_t *dsx       = dst - steps_y * dst_stride + x - steps_x;
> -
> -                res = (int32_t)*srx + ((((int32_t) * srx - (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> 16);
> -                *dsx = av_clip_uint8(res);
> -            }
> -        }
> -        if (y >= 0) {
> -            dst += dst_stride;
> -            src += src_stride;
> -        }
> -    }
> -    return 0;
> +#define DEF_UNSHARP_SLICE_FUNC(name, nbits)                                                           \
> +static int name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)                    \
> +{                                                                                                     \
> +    ThreadData *td = arg;                                                                             \
> +    UnsharpFilterParam *fp = td->fp;                                                                  \
> +    UnsharpContext *s = ctx->priv;                                                                    \
> +    uint32_t **sc = fp->sc;                                                                           \
> +    uint32_t *sr = fp->sr;                                                                            \
> +    const uint##nbits##_t *src2 = NULL;                                                               \
> +    const int amount = fp->amount;                                                                    \
> +    const int steps_x = fp->steps_x;                                                                  \
> +    const int steps_y = fp->steps_y;                                                                  \
> +    const int scalebits = fp->scalebits;                                                              \
> +    const int32_t halfscale = fp->halfscale;                                                          \
> +                                                                                                      \
> +    uint##nbits##_t *dst = (uint##nbits##_t*)td->dst;                                                 \
> +    const uint##nbits##_t *src = (const uint##nbits##_t *)td->src;                                    \
> +    int dst_stride = td->dst_stride;                                                                  \
> +    int src_stride = td->src_stride;                                                                  \
> +    const int width = td->width;                                                                      \
> +    const int height = td->height;                                                                    \
> +    const int sc_offset = jobnr * 2 * steps_y;                                                        \
> +    const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1);                                              \
> +    const int slice_start = (height * jobnr) / nb_jobs;                                               \
> +    const int slice_end = (height * (jobnr+1)) / nb_jobs;                                             \
> +                                                                                                      \
> +    int32_t res;                                                                                      \
> +    int x, y, z;                                                                                      \
> +    uint32_t tmp1, tmp2;                                                                              \
> +                                                                                                      \
> +    if (!amount) {                                                                                    \
> +        av_image_copy_plane(td->dst + slice_start * dst_stride, dst_stride,                           \
> +                            td->src + slice_start * src_stride, src_stride,                           \
> +                            width * s->bps, slice_end - slice_start);                                 \
> +        return 0;                                                                                     \
> +    }                                                                                                 \
> +                                                                                                      \
> +    for (y = 0; y < 2 * steps_y; y++)                                                                 \
> +        memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x));                       \
> +                                                                                                      \
> +    dst_stride = dst_stride / s->bps;                                                                 \
> +    src_stride = src_stride / s->bps;                                                                 \
> +    /* if this is not the first tile, we start from (slice_start - steps_y) */                        \
> +    /* so we can get smooth result at slice boundary */                                               \
> +    if (slice_start > steps_y) {                                                                      \
> +        src += (slice_start - steps_y) * src_stride;                                                  \
> +        dst += (slice_start - steps_y) * dst_stride;                                                  \
> +    }                                                                                                 \
> +                                                                                                      \
> +    for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) {                                  \
> +        if (y < height)                                                                               \
> +            src2 = src;                                                                               \
> +                                                                                                      \
> +        memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1));                                 \
> +        for (x = -steps_x; x < width + steps_x; x++) {                                                \
> +            tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x];                           \
> +            for (z = 0; z < steps_x * 2; z += 2) {                                                    \
> +                tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1;                    \
> +                tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2;                    \
> +            }                                                                                         \
> +            for (z = 0; z < steps_y * 2; z += 2) {                                                    \
> +                tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1;                                     \
> +                sc[sc_offset + z + 0][x + steps_x] = tmp1;                                            \
> +                tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2;                                     \
> +                sc[sc_offset + z + 1][x + steps_x] = tmp2;                                            \
> +            }                                                                                         \
> +            if (x >= steps_x && y >= (steps_y + slice_start)) {                                       \
> +                const uint##nbits##_t *srx = src - steps_y * src_stride + x - steps_x;                \
> +                uint##nbits##_t *dsx       = dst - steps_y * dst_stride + x - steps_x;                \
> +                                                                                                      \
> +                res = (int32_t)*srx + ((((int32_t) * srx -                                            \
> +                      (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> (8+nbits));            \
> +                *dsx = av_clip_uint##nbits(res);                                                      \
> +            }                                                                                         \
> +        }                                                                                             \
> +        if (y >= 0) {                                                                                 \
> +            dst += dst_stride;                                                                        \
> +            src += src_stride;                                                                        \
> +        }                                                                                             \
> +    }                                                                                                 \
> +    return 0;                                                                                         \
>  }
> +DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 16);
> +DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 8);
>  
>  static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
>  {
> @@ -155,7 +164,7 @@ static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
>          td.height = plane_h[i];
>          td.dst_stride = out->linesize[i];
>          td.src_stride = in->linesize[i];
> -        ctx->internal->execute(ctx, unsharp_slice, &td, NULL, FFMIN(plane_h[i], s->nb_threads));
> +        ctx->internal->execute(ctx, s->unsharp_slice, &td, NULL, FFMIN(plane_h[i], s->nb_threads));
>      }
>      return 0;
>  }
> @@ -238,6 +247,9 @@ static int config_input(AVFilterLink *inlink)
>  
>      s->hsub = desc->log2_chroma_w;
>      s->vsub = desc->log2_chroma_h;
> +    s->bitdepth = desc->comp[0].depth;
> +    s->bps = s->bitdepth > 8 ? 2 : 1;
> +    s->unsharp_slice = s->bitdepth > 8 ? unsharp_slice_16 : unsharp_slice_8;
>  
>      // ensure (height / nb_threads) > 4 * steps_y,
>      // so that we don't have too much overlap between two threads
> -- 
> 2.21.0
> 


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