| /* |
| * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
| * Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru> |
| * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with FFmpeg; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| /** |
| * @file |
| * Fast Simple Post-processing filter |
| * This implementation is based on an algorithm described in |
| * "Aria Nosratinia Embedded Post-Processing for |
| * Enhancement of Compressed Images (1999)" |
| * (http://www.utdallas.edu/~aria/papers/vlsisp99.pdf) |
| * Further, with splitting (I)DCT into horizontal/vertical passes, one of |
| * them can be performed once per block, not per pixel. This allows for much |
| * higher speed. |
| * |
| * Originally written by Michael Niedermayer and Nikolaj for the MPlayer |
| * project, and ported by Arwa Arif for FFmpeg. |
| */ |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "internal.h" |
| #include "vf_fspp.h" |
| |
| #define OFFSET(x) offsetof(FSPPContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| static const AVOption fspp_options[] = { |
| { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 4}, 4, MAX_LEVEL, FLAGS }, |
| { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS }, |
| { "strength", "set filter strength", OFFSET(strength), AV_OPT_TYPE_INT, {.i64 = 0}, -15, 32, FLAGS }, |
| { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(fspp); |
| |
| DECLARE_ALIGNED(32, static const uint8_t, dither)[8][8] = { |
| { 0, 48, 12, 60, 3, 51, 15, 63, }, |
| { 32, 16, 44, 28, 35, 19, 47, 31, }, |
| { 8, 56, 4, 52, 11, 59, 7, 55, }, |
| { 40, 24, 36, 20, 43, 27, 39, 23, }, |
| { 2, 50, 14, 62, 1, 49, 13, 61, }, |
| { 34, 18, 46, 30, 33, 17, 45, 29, }, |
| { 10, 58, 6, 54, 9, 57, 5, 53, }, |
| { 42, 26, 38, 22, 41, 25, 37, 21, }, |
| }; |
| |
| static const short custom_threshold[64] = { |
| // values (296) can't be too high |
| // -it causes too big quant dependence |
| // or maybe overflow(check), which results in some flashing |
| 71, 296, 295, 237, 71, 40, 38, 19, |
| 245, 193, 185, 121, 102, 73, 53, 27, |
| 158, 129, 141, 107, 97, 73, 50, 26, |
| 102, 116, 109, 98, 82, 66, 45, 23, |
| 71, 94, 95, 81, 70, 56, 38, 20, |
| 56, 77, 74, 66, 56, 44, 30, 15, |
| 38, 53, 50, 45, 38, 30, 21, 11, |
| 20, 27, 26, 23, 20, 15, 11, 5 |
| }; |
| |
| //This func reads from 1 slice, 1 and clears 0 & 1 |
| static void store_slice_c(uint8_t *dst, int16_t *src, |
| ptrdiff_t dst_stride, ptrdiff_t src_stride, |
| ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale) |
| { |
| int y, x; |
| #define STORE(pos) \ |
| temp = (src[x + pos] + (d[pos] >> log2_scale)) >> (6 - log2_scale); \ |
| src[x + pos] = src[x + pos - 8 * src_stride] = 0; \ |
| if (temp & 0x100) temp = ~(temp >> 31); \ |
| dst[x + pos] = temp; |
| |
| for (y = 0; y < height; y++) { |
| const uint8_t *d = dither[y]; |
| for (x = 0; x < width; x += 8) { |
| int temp; |
| STORE(0); |
| STORE(1); |
| STORE(2); |
| STORE(3); |
| STORE(4); |
| STORE(5); |
| STORE(6); |
| STORE(7); |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| //This func reads from 2 slices, 0 & 2 and clears 2-nd |
| static void store_slice2_c(uint8_t *dst, int16_t *src, |
| ptrdiff_t dst_stride, ptrdiff_t src_stride, |
| ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale) |
| { |
| int y, x; |
| #define STORE2(pos) \ |
| temp = (src[x + pos] + src[x + pos + 16 * src_stride] + (d[pos] >> log2_scale)) >> (6 - log2_scale); \ |
| src[x + pos + 16 * src_stride] = 0; \ |
| if (temp & 0x100) temp = ~(temp >> 31); \ |
| dst[x + pos] = temp; |
| |
| for (y = 0; y < height; y++) { |
| const uint8_t *d = dither[y]; |
| for (x = 0; x < width; x += 8) { |
| int temp; |
| STORE2(0); |
| STORE2(1); |
| STORE2(2); |
| STORE2(3); |
| STORE2(4); |
| STORE2(5); |
| STORE2(6); |
| STORE2(7); |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| static void mul_thrmat_c(int16_t *thr_adr_noq, int16_t *thr_adr, int q) |
| { |
| int a; |
| for (a = 0; a < 64; a++) |
| thr_adr[a] = q * thr_adr_noq[a]; |
| } |
| |
| static void filter(FSPPContext *p, uint8_t *dst, uint8_t *src, |
| int dst_stride, int src_stride, |
| int width, int height, |
| uint8_t *qp_store, int qp_stride, int is_luma) |
| { |
| int x, x0, y, es, qy, t; |
| |
| const int stride = is_luma ? p->temp_stride : (width + 16); |
| const int step = 6 - p->log2_count; |
| const int qpsh = 4 - p->hsub * !is_luma; |
| const int qpsv = 4 - p->vsub * !is_luma; |
| |
| DECLARE_ALIGNED(32, int32_t, block_align)[4 * 8 * BLOCKSZ + 4 * 8 * BLOCKSZ]; |
| int16_t *block = (int16_t *)block_align; |
| int16_t *block3 = (int16_t *)(block_align + 4 * 8 * BLOCKSZ); |
| |
| memset(block3, 0, 4 * 8 * BLOCKSZ); |
| |
| if (!src || !dst) return; |
| |
| for (y = 0; y < height; y++) { |
| int index = 8 + 8 * stride + y * stride; |
| memcpy(p->src + index, src + y * src_stride, width); |
| for (x = 0; x < 8; x++) { |
| p->src[index - x - 1] = p->src[index + x ]; |
| p->src[index + width + x ] = p->src[index + width - x - 1]; |
| } |
| } |
| |
| for (y = 0; y < 8; y++) { |
| memcpy(p->src + ( 7 - y ) * stride, p->src + ( y + 8 ) * stride, stride); |
| memcpy(p->src + (height + 8 + y) * stride, p->src + (height - y + 7) * stride, stride); |
| } |
| //FIXME (try edge emu) |
| |
| for (y = 8; y < 24; y++) |
| memset(p->temp + 8 + y * stride, 0, width * sizeof(int16_t)); |
| |
| for (y = step; y < height + 8; y += step) { //step= 1,2 |
| const int y1 = y - 8 + step; //l5-7 l4-6; |
| qy = y - 4; |
| |
| if (qy > height - 1) qy = height - 1; |
| if (qy < 0) qy = 0; |
| |
| qy = (qy >> qpsv) * qp_stride; |
| p->row_fdct(block, p->src + y * stride + 2 - (y&1), stride, 2); |
| |
| for (x0 = 0; x0 < width + 8 - 8 * (BLOCKSZ - 1); x0 += 8 * (BLOCKSZ - 1)) { |
| p->row_fdct(block + 8 * 8, p->src + y * stride + 8 + x0 + 2 - (y&1), stride, 2 * (BLOCKSZ - 1)); |
| |
| if (p->qp) |
| p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block + 0 * 8, block3 + 0 * 8, 8 * (BLOCKSZ - 1)); //yes, this is a HOTSPOT |
| else |
| for (x = 0; x < 8 * (BLOCKSZ - 1); x += 8) { |
| t = x + x0 - 2; //correct t=x+x0-2-(y&1), but its the same |
| |
| if (t < 0) t = 0; //t always < width-2 |
| |
| t = qp_store[qy + (t >> qpsh)]; |
| t = ff_norm_qscale(t, p->qscale_type); |
| |
| if (t != p->prev_q) p->prev_q = t, p->mul_thrmat((int16_t *)(&p->threshold_mtx_noq[0]), (int16_t *)(&p->threshold_mtx[0]), t); |
| p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block + x * 8, block3 + x * 8, 8); //yes, this is a HOTSPOT |
| } |
| p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, 2 * (BLOCKSZ - 1)); |
| memmove(block, block + (BLOCKSZ - 1) * 64, 8 * 8 * sizeof(int16_t)); //cycling |
| memmove(block3, block3 + (BLOCKSZ - 1) * 64, 6 * 8 * sizeof(int16_t)); |
| } |
| |
| es = width + 8 - x0; // 8, ... |
| if (es > 8) |
| p->row_fdct(block + 8 * 8, p->src + y * stride + 8 + x0 + 2 - (y & 1), stride, (es - 4) >> 2); |
| |
| p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block, block3, es&(~1)); |
| if (es > 3) |
| p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, es >> 2); |
| |
| if (!(y1 & 7) && y1) { |
| if (y1 & 8) |
| p->store_slice(dst + (y1 - 8) * dst_stride, p->temp + 8 + 8 * stride, |
| dst_stride, stride, width, 8, 5 - p->log2_count); |
| else |
| p->store_slice2(dst + (y1 - 8) * dst_stride, p->temp + 8 + 0 * stride, |
| dst_stride, stride, width, 8, 5 - p->log2_count); |
| } |
| } |
| |
| if (y & 7) { // height % 8 != 0 |
| if (y & 8) |
| p->store_slice(dst + ((y - 8) & ~7) * dst_stride, p->temp + 8 + 8 * stride, |
| dst_stride, stride, width, y&7, 5 - p->log2_count); |
| else |
| p->store_slice2(dst + ((y - 8) & ~7) * dst_stride, p->temp + 8 + 0 * stride, |
| dst_stride, stride, width, y&7, 5 - p->log2_count); |
| } |
| } |
| |
| static void column_fidct_c(int16_t *thr_adr, int16_t *data, int16_t *output, int cnt) |
| { |
| int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int_simd16_t tmp10, tmp11, tmp12, tmp13; |
| int_simd16_t z1,z2,z3,z4,z5, z10, z11, z12, z13; |
| int_simd16_t d0, d1, d2, d3, d4, d5, d6, d7; |
| |
| int16_t *dataptr; |
| int16_t *wsptr; |
| int16_t *threshold; |
| int ctr; |
| |
| dataptr = data; |
| wsptr = output; |
| |
| for (; cnt > 0; cnt -= 2) { //start positions |
| threshold = (int16_t *)thr_adr;//threshold_mtx |
| for (ctr = DCTSIZE; ctr > 0; ctr--) { |
| // Process columns from input, add to output. |
| tmp0 = dataptr[DCTSIZE * 0] + dataptr[DCTSIZE * 7]; |
| tmp7 = dataptr[DCTSIZE * 0] - dataptr[DCTSIZE * 7]; |
| |
| tmp1 = dataptr[DCTSIZE * 1] + dataptr[DCTSIZE * 6]; |
| tmp6 = dataptr[DCTSIZE * 1] - dataptr[DCTSIZE * 6]; |
| |
| tmp2 = dataptr[DCTSIZE * 2] + dataptr[DCTSIZE * 5]; |
| tmp5 = dataptr[DCTSIZE * 2] - dataptr[DCTSIZE * 5]; |
| |
| tmp3 = dataptr[DCTSIZE * 3] + dataptr[DCTSIZE * 4]; |
| tmp4 = dataptr[DCTSIZE * 3] - dataptr[DCTSIZE * 4]; |
| |
| // Even part of FDCT |
| |
| tmp10 = tmp0 + tmp3; |
| tmp13 = tmp0 - tmp3; |
| tmp11 = tmp1 + tmp2; |
| tmp12 = tmp1 - tmp2; |
| |
| d0 = tmp10 + tmp11; |
| d4 = tmp10 - tmp11; |
| |
| z1 = MULTIPLY16H((tmp12 + tmp13) << 2, FIX_0_707106781); |
| d2 = tmp13 + z1; |
| d6 = tmp13 - z1; |
| |
| // Even part of IDCT |
| |
| THRESHOLD(tmp0, d0, threshold[0 * 8]); |
| THRESHOLD(tmp1, d2, threshold[2 * 8]); |
| THRESHOLD(tmp2, d4, threshold[4 * 8]); |
| THRESHOLD(tmp3, d6, threshold[6 * 8]); |
| tmp0 += 2; |
| tmp10 = (tmp0 + tmp2) >> 2; |
| tmp11 = (tmp0 - tmp2) >> 2; |
| |
| tmp13 = (tmp1 + tmp3) >>2; //+2 ! (psnr decides) |
| tmp12 = MULTIPLY16H((tmp1 - tmp3), FIX_1_414213562_A) - tmp13; //<<2 |
| |
| tmp0 = tmp10 + tmp13; //->temps |
| tmp3 = tmp10 - tmp13; //->temps |
| tmp1 = tmp11 + tmp12; //->temps |
| tmp2 = tmp11 - tmp12; //->temps |
| |
| // Odd part of FDCT |
| |
| tmp10 = tmp4 + tmp5; |
| tmp11 = tmp5 + tmp6; |
| tmp12 = tmp6 + tmp7; |
| |
| z5 = MULTIPLY16H((tmp10 - tmp12) << 2, FIX_0_382683433); |
| z2 = MULTIPLY16H(tmp10 << 2, FIX_0_541196100) + z5; |
| z4 = MULTIPLY16H(tmp12 << 2, FIX_1_306562965) + z5; |
| z3 = MULTIPLY16H(tmp11 << 2, FIX_0_707106781); |
| |
| z11 = tmp7 + z3; |
| z13 = tmp7 - z3; |
| |
| d5 = z13 + z2; |
| d3 = z13 - z2; |
| d1 = z11 + z4; |
| d7 = z11 - z4; |
| |
| // Odd part of IDCT |
| |
| THRESHOLD(tmp4, d1, threshold[1 * 8]); |
| THRESHOLD(tmp5, d3, threshold[3 * 8]); |
| THRESHOLD(tmp6, d5, threshold[5 * 8]); |
| THRESHOLD(tmp7, d7, threshold[7 * 8]); |
| |
| //Simd version uses here a shortcut for the tmp5,tmp6,tmp7 == 0 |
| z13 = tmp6 + tmp5; |
| z10 = (tmp6 - tmp5) << 1; |
| z11 = tmp4 + tmp7; |
| z12 = (tmp4 - tmp7) << 1; |
| |
| tmp7 = (z11 + z13) >> 2; //+2 ! |
| tmp11 = MULTIPLY16H((z11 - z13) << 1, FIX_1_414213562); |
| z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065); |
| tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5; |
| tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - !! |
| |
| tmp6 = tmp12 - tmp7; |
| tmp5 = tmp11 - tmp6; |
| tmp4 = tmp10 + tmp5; |
| |
| wsptr[DCTSIZE * 0] += (tmp0 + tmp7); |
| wsptr[DCTSIZE * 1] += (tmp1 + tmp6); |
| wsptr[DCTSIZE * 2] += (tmp2 + tmp5); |
| wsptr[DCTSIZE * 3] += (tmp3 - tmp4); |
| wsptr[DCTSIZE * 4] += (tmp3 + tmp4); |
| wsptr[DCTSIZE * 5] += (tmp2 - tmp5); |
| wsptr[DCTSIZE * 6] = (tmp1 - tmp6); |
| wsptr[DCTSIZE * 7] = (tmp0 - tmp7); |
| // |
| dataptr++; //next column |
| wsptr++; |
| threshold++; |
| } |
| dataptr += 8; //skip each second start pos |
| wsptr += 8; |
| } |
| } |
| |
| static void row_idct_c(int16_t *workspace, int16_t *output_adr, ptrdiff_t output_stride, int cnt) |
| { |
| int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int_simd16_t tmp10, tmp11, tmp12, tmp13; |
| int_simd16_t z5, z10, z11, z12, z13; |
| int16_t *outptr; |
| int16_t *wsptr; |
| |
| cnt *= 4; |
| wsptr = workspace; |
| outptr = output_adr; |
| for (; cnt > 0; cnt--) { |
| // Even part |
| //Simd version reads 4x4 block and transposes it |
| tmp10 = wsptr[2] + wsptr[3]; |
| tmp11 = wsptr[2] - wsptr[3]; |
| |
| tmp13 = wsptr[0] + wsptr[1]; |
| tmp12 = (MULTIPLY16H(wsptr[0] - wsptr[1], FIX_1_414213562_A) << 2) - tmp13;//this shift order to avoid overflow |
| |
| tmp0 = tmp10 + tmp13; //->temps |
| tmp3 = tmp10 - tmp13; //->temps |
| tmp1 = tmp11 + tmp12; |
| tmp2 = tmp11 - tmp12; |
| |
| // Odd part |
| //Also transpose, with previous: |
| // ---- ---- |||| |
| // ---- ---- idct |||| |
| // ---- ---- ---> |||| |
| // ---- ---- |||| |
| z13 = wsptr[4] + wsptr[5]; |
| z10 = wsptr[4] - wsptr[5]; |
| z11 = wsptr[6] + wsptr[7]; |
| z12 = wsptr[6] - wsptr[7]; |
| |
| tmp7 = z11 + z13; |
| tmp11 = MULTIPLY16H(z11 - z13, FIX_1_414213562); |
| |
| z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065); |
| tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5; |
| tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - FIX_ |
| |
| tmp6 = (tmp12 << 3) - tmp7; |
| tmp5 = (tmp11 << 3) - tmp6; |
| tmp4 = (tmp10 << 3) + tmp5; |
| |
| // Final output stage: descale and write column |
| outptr[0 * output_stride] += DESCALE(tmp0 + tmp7, 3); |
| outptr[1 * output_stride] += DESCALE(tmp1 + tmp6, 3); |
| outptr[2 * output_stride] += DESCALE(tmp2 + tmp5, 3); |
| outptr[3 * output_stride] += DESCALE(tmp3 - tmp4, 3); |
| outptr[4 * output_stride] += DESCALE(tmp3 + tmp4, 3); |
| outptr[5 * output_stride] += DESCALE(tmp2 - tmp5, 3); |
| outptr[6 * output_stride] += DESCALE(tmp1 - tmp6, 3); //no += ? |
| outptr[7 * output_stride] += DESCALE(tmp0 - tmp7, 3); //no += ? |
| outptr++; |
| |
| wsptr += DCTSIZE; // advance pointer to next row |
| } |
| } |
| |
| static void row_fdct_c(int16_t *data, const uint8_t *pixels, ptrdiff_t line_size, int cnt) |
| { |
| int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int_simd16_t tmp10, tmp11, tmp12, tmp13; |
| int_simd16_t z1, z2, z3, z4, z5, z11, z13; |
| int16_t *dataptr; |
| |
| cnt *= 4; |
| // Pass 1: process rows. |
| |
| dataptr = data; |
| for (; cnt > 0; cnt--) { |
| tmp0 = pixels[line_size * 0] + pixels[line_size * 7]; |
| tmp7 = pixels[line_size * 0] - pixels[line_size * 7]; |
| tmp1 = pixels[line_size * 1] + pixels[line_size * 6]; |
| tmp6 = pixels[line_size * 1] - pixels[line_size * 6]; |
| tmp2 = pixels[line_size * 2] + pixels[line_size * 5]; |
| tmp5 = pixels[line_size * 2] - pixels[line_size * 5]; |
| tmp3 = pixels[line_size * 3] + pixels[line_size * 4]; |
| tmp4 = pixels[line_size * 3] - pixels[line_size * 4]; |
| |
| // Even part |
| |
| tmp10 = tmp0 + tmp3; |
| tmp13 = tmp0 - tmp3; |
| tmp11 = tmp1 + tmp2; |
| tmp12 = tmp1 - tmp2; |
| //Even columns are written first, this leads to different order of columns |
| //in column_fidct(), but they are processed independently, so all ok. |
| //Later in the row_idct() columns readed at the same order. |
| dataptr[2] = tmp10 + tmp11; |
| dataptr[3] = tmp10 - tmp11; |
| |
| z1 = MULTIPLY16H((tmp12 + tmp13) << 2, FIX_0_707106781); |
| dataptr[0] = tmp13 + z1; |
| dataptr[1] = tmp13 - z1; |
| |
| // Odd part |
| |
| tmp10 = (tmp4 + tmp5) << 2; |
| tmp11 = (tmp5 + tmp6) << 2; |
| tmp12 = (tmp6 + tmp7) << 2; |
| |
| z5 = MULTIPLY16H(tmp10 - tmp12, FIX_0_382683433); |
| z2 = MULTIPLY16H(tmp10, FIX_0_541196100) + z5; |
| z4 = MULTIPLY16H(tmp12, FIX_1_306562965) + z5; |
| z3 = MULTIPLY16H(tmp11, FIX_0_707106781); |
| |
| z11 = tmp7 + z3; |
| z13 = tmp7 - z3; |
| |
| dataptr[4] = z13 + z2; |
| dataptr[5] = z13 - z2; |
| dataptr[6] = z11 + z4; |
| dataptr[7] = z11 - z4; |
| |
| pixels++; // advance pointer to next column |
| dataptr += DCTSIZE; |
| } |
| } |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pix_fmts[] = { |
| AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, |
| AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, |
| AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, |
| AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P, |
| AV_PIX_FMT_GBRP, AV_PIX_FMT_GRAY8, |
| AV_PIX_FMT_NONE |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| FSPPContext *fspp = ctx->priv; |
| const int h = FFALIGN(inlink->h + 16, 16); |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| |
| fspp->hsub = desc->log2_chroma_w; |
| fspp->vsub = desc->log2_chroma_h; |
| |
| fspp->temp_stride = FFALIGN(inlink->w + 16, 16); |
| fspp->temp = av_malloc_array(fspp->temp_stride, h * sizeof(*fspp->temp)); |
| fspp->src = av_malloc_array(fspp->temp_stride, h * sizeof(*fspp->src)); |
| |
| if (!fspp->temp || !fspp->src) |
| return AVERROR(ENOMEM); |
| |
| if (!fspp->use_bframe_qp && !fspp->qp) { |
| fspp->non_b_qp_alloc_size = AV_CEIL_RSHIFT(inlink->w, 4) * AV_CEIL_RSHIFT(inlink->h, 4); |
| fspp->non_b_qp_table = av_calloc(fspp->non_b_qp_alloc_size, sizeof(*fspp->non_b_qp_table)); |
| if (!fspp->non_b_qp_table) |
| return AVERROR(ENOMEM); |
| } |
| |
| fspp->store_slice = store_slice_c; |
| fspp->store_slice2 = store_slice2_c; |
| fspp->mul_thrmat = mul_thrmat_c; |
| fspp->column_fidct = column_fidct_c; |
| fspp->row_idct = row_idct_c; |
| fspp->row_fdct = row_fdct_c; |
| |
| if (ARCH_X86) |
| ff_fspp_init_x86(fspp); |
| |
| return 0; |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| FSPPContext *fspp = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| AVFrame *out = in; |
| |
| int qp_stride = 0; |
| uint8_t *qp_table = NULL; |
| int i, bias; |
| int custom_threshold_m[64]; |
| |
| bias = (1 << 4) + fspp->strength; |
| |
| for (i = 0; i < 64; i++) //FIXME: tune custom_threshold[] and remove this ! |
| custom_threshold_m[i] = (int)(custom_threshold[i] * (bias / 71.0) + 0.5); |
| |
| for (i = 0; i < 8; i++) { |
| fspp->threshold_mtx_noq[2 * i] = (uint64_t)custom_threshold_m[i * 8 + 2] |
| |(((uint64_t)custom_threshold_m[i * 8 + 6]) << 16) |
| |(((uint64_t)custom_threshold_m[i * 8 + 0]) << 32) |
| |(((uint64_t)custom_threshold_m[i * 8 + 4]) << 48); |
| |
| fspp->threshold_mtx_noq[2 * i + 1] = (uint64_t)custom_threshold_m[i * 8 + 5] |
| |(((uint64_t)custom_threshold_m[i * 8 + 3]) << 16) |
| |(((uint64_t)custom_threshold_m[i * 8 + 1]) << 32) |
| |(((uint64_t)custom_threshold_m[i * 8 + 7]) << 48); |
| } |
| |
| if (fspp->qp) |
| fspp->prev_q = fspp->qp, fspp->mul_thrmat((int16_t *)(&fspp->threshold_mtx_noq[0]), (int16_t *)(&fspp->threshold_mtx[0]), fspp->qp); |
| |
| /* if we are not in a constant user quantizer mode and we don't want to use |
| * the quantizers from the B-frames (B-frames often have a higher QP), we |
| * need to save the qp table from the last non B-frame; this is what the |
| * following code block does */ |
| if (!fspp->qp) { |
| qp_table = av_frame_get_qp_table(in, &qp_stride, &fspp->qscale_type); |
| |
| if (qp_table && !fspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) { |
| int w, h; |
| |
| /* if the qp stride is not set, it means the QP are only defined on |
| * a line basis */ |
| if (!qp_stride) { |
| w = AV_CEIL_RSHIFT(inlink->w, 4); |
| h = 1; |
| } else { |
| w = qp_stride; |
| h = AV_CEIL_RSHIFT(inlink->h, 4); |
| } |
| if (w * h > fspp->non_b_qp_alloc_size) { |
| int ret = av_reallocp_array(&fspp->non_b_qp_table, w, h); |
| if (ret < 0) { |
| fspp->non_b_qp_alloc_size = 0; |
| return ret; |
| } |
| fspp->non_b_qp_alloc_size = w * h; |
| } |
| |
| av_assert0(w * h <= fspp->non_b_qp_alloc_size); |
| memcpy(fspp->non_b_qp_table, qp_table, w * h); |
| } |
| } |
| |
| if (fspp->log2_count && !ctx->is_disabled) { |
| if (!fspp->use_bframe_qp && fspp->non_b_qp_table) |
| qp_table = fspp->non_b_qp_table; |
| |
| if (qp_table || fspp->qp) { |
| const int cw = AV_CEIL_RSHIFT(inlink->w, fspp->hsub); |
| const int ch = AV_CEIL_RSHIFT(inlink->h, fspp->vsub); |
| |
| /* get a new frame if in-place is not possible or if the dimensions |
| * are not multiple of 8 */ |
| if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) { |
| const int aligned_w = FFALIGN(inlink->w, 8); |
| const int aligned_h = FFALIGN(inlink->h, 8); |
| |
| out = ff_get_video_buffer(outlink, aligned_w, aligned_h); |
| if (!out) { |
| av_frame_free(&in); |
| return AVERROR(ENOMEM); |
| } |
| av_frame_copy_props(out, in); |
| out->width = in->width; |
| out->height = in->height; |
| } |
| |
| filter(fspp, out->data[0], in->data[0], out->linesize[0], in->linesize[0], |
| inlink->w, inlink->h, qp_table, qp_stride, 1); |
| filter(fspp, out->data[1], in->data[1], out->linesize[1], in->linesize[1], |
| cw, ch, qp_table, qp_stride, 0); |
| filter(fspp, out->data[2], in->data[2], out->linesize[2], in->linesize[2], |
| cw, ch, qp_table, qp_stride, 0); |
| emms_c(); |
| } |
| } |
| |
| if (in != out) { |
| if (in->data[3]) |
| av_image_copy_plane(out->data[3], out->linesize[3], |
| in ->data[3], in ->linesize[3], |
| inlink->w, inlink->h); |
| av_frame_free(&in); |
| } |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| FSPPContext *fspp = ctx->priv; |
| av_freep(&fspp->temp); |
| av_freep(&fspp->src); |
| av_freep(&fspp->non_b_qp_table); |
| } |
| |
| static const AVFilterPad fspp_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_input, |
| .filter_frame = filter_frame, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad fspp_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_fspp = { |
| .name = "fspp", |
| .description = NULL_IF_CONFIG_SMALL("Apply Fast Simple Post-processing filter."), |
| .priv_size = sizeof(FSPPContext), |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = fspp_inputs, |
| .outputs = fspp_outputs, |
| .priv_class = &fspp_class, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, |
| }; |
