| /* |
| * huffyuv codec for libavcodec |
| * |
| * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of |
| * the algorithm used |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser 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 |
| * huffyuv codec for libavcodec. |
| */ |
| |
| #include "avcodec.h" |
| #include "internal.h" |
| #include "get_bits.h" |
| #include "put_bits.h" |
| #include "dsputil.h" |
| #include "thread.h" |
| #include "huffman.h" |
| |
| #define VLC_BITS 11 |
| |
| #if HAVE_BIGENDIAN |
| #define B 3 |
| #define G 2 |
| #define R 1 |
| #define A 0 |
| #else |
| #define B 0 |
| #define G 1 |
| #define R 2 |
| #define A 3 |
| #endif |
| |
| typedef enum Predictor { |
| LEFT= 0, |
| PLANE, |
| MEDIAN, |
| } Predictor; |
| |
| typedef struct HYuvContext { |
| AVCodecContext *avctx; |
| Predictor predictor; |
| GetBitContext gb; |
| PutBitContext pb; |
| int interlaced; |
| int decorrelate; |
| int bitstream_bpp; |
| int version; |
| int yuy2; //use yuy2 instead of 422P |
| int bgr32; //use bgr32 instead of bgr24 |
| int width, height; |
| int flags; |
| int context; |
| int picture_number; |
| int last_slice_end; |
| uint8_t *temp[3]; |
| uint64_t stats[3][256]; |
| uint8_t len[3][256]; |
| uint32_t bits[3][256]; |
| uint32_t pix_bgr_map[1<<VLC_BITS]; |
| VLC vlc[6]; //Y,U,V,YY,YU,YV |
| AVFrame picture; |
| uint8_t *bitstream_buffer; |
| unsigned int bitstream_buffer_size; |
| DSPContext dsp; |
| } HYuvContext; |
| |
| #define classic_shift_luma_table_size 42 |
| static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { |
| 34,36,35,69,135,232,9,16,10,24,11,23,12,16,13,10,14,8,15,8, |
| 16,8,17,20,16,10,207,206,205,236,11,8,10,21,9,23,8,8,199,70, |
| 69,68, 0, |
| 0,0,0,0,0,0,0,0, |
| }; |
| |
| #define classic_shift_chroma_table_size 59 |
| static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { |
| 66,36,37,38,39,40,41,75,76,77,110,239,144,81,82,83,84,85,118,183, |
| 56,57,88,89,56,89,154,57,58,57,26,141,57,56,58,57,58,57,184,119, |
| 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0, |
| 0,0,0,0,0,0,0,0, |
| }; |
| |
| static const unsigned char classic_add_luma[256] = { |
| 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37, |
| 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36, |
| 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36, |
| 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39, |
| 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37, |
| 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29, |
| 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16, |
| 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14, |
| 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6, |
| 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15, |
| 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25, |
| 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49, |
| 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60, |
| 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52, |
| 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43, |
| 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8, |
| }; |
| |
| static const unsigned char classic_add_chroma[256] = { |
| 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9, |
| 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7, |
| 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77, |
| 43, 45, 76, 81, 46, 82, 75, 55, 56,144, 58, 80, 60, 74,147, 63, |
| 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, |
| 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22, |
| 17, 14, 5, 6,100, 54, 47, 50, 51, 53,106,107,108,109,110,111, |
| 112,113,114,115, 4,117,118, 92, 94,121,122, 3,124,103, 2, 1, |
| 0,129,130,131,120,119,126,125,136,137,138,139,140,141,142,134, |
| 135,132,133,104, 64,101, 62, 57,102, 95, 93, 59, 61, 28, 97, 96, |
| 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41, |
| 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36, |
| 7,128,127,105,123,116, 35, 34, 33,145, 31, 79, 42,146, 78, 26, |
| 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13, |
| 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8, |
| 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2, |
| }; |
| |
| static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst, |
| const uint8_t *src, int w, int left) |
| { |
| int i; |
| if (w < 32) { |
| for (i = 0; i < w; i++) { |
| const int temp = src[i]; |
| dst[i] = temp - left; |
| left = temp; |
| } |
| return left; |
| } else { |
| for (i = 0; i < 16; i++) { |
| const int temp = src[i]; |
| dst[i] = temp - left; |
| left = temp; |
| } |
| s->dsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16); |
| return src[w-1]; |
| } |
| } |
| |
| static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst, |
| const uint8_t *src, int w, |
| int *red, int *green, int *blue, int *alpha) |
| { |
| int i; |
| int r,g,b,a; |
| r = *red; |
| g = *green; |
| b = *blue; |
| a = *alpha; |
| for (i = 0; i < FFMIN(w, 4); i++) { |
| const int rt = src[i * 4 + R]; |
| const int gt = src[i * 4 + G]; |
| const int bt = src[i * 4 + B]; |
| const int at = src[i * 4 + A]; |
| dst[i * 4 + R] = rt - r; |
| dst[i * 4 + G] = gt - g; |
| dst[i * 4 + B] = bt - b; |
| dst[i * 4 + A] = at - a; |
| r = rt; |
| g = gt; |
| b = bt; |
| a = at; |
| } |
| |
| s->dsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16); |
| |
| *red = src[(w - 1) * 4 + R]; |
| *green = src[(w - 1) * 4 + G]; |
| *blue = src[(w - 1) * 4 + B]; |
| *alpha = src[(w - 1) * 4 + A]; |
| } |
| |
| static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue){ |
| int i; |
| int r,g,b; |
| r = *red; |
| g = *green; |
| b = *blue; |
| for (i = 0; i < FFMIN(w,16); i++) { |
| const int rt = src[i*3 + 0]; |
| const int gt = src[i*3 + 1]; |
| const int bt = src[i*3 + 2]; |
| dst[i*3 + 0] = rt - r; |
| dst[i*3 + 1] = gt - g; |
| dst[i*3 + 2] = bt - b; |
| r = rt; |
| g = gt; |
| b = bt; |
| } |
| |
| s->dsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w*3 - 48); |
| |
| *red = src[(w - 1)*3 + 0]; |
| *green = src[(w - 1)*3 + 1]; |
| *blue = src[(w - 1)*3 + 2]; |
| } |
| |
| static int read_len_table(uint8_t *dst, GetBitContext *gb) |
| { |
| int i, val, repeat; |
| |
| for (i = 0; i < 256;) { |
| repeat = get_bits(gb, 3); |
| val = get_bits(gb, 5); |
| if (repeat == 0) |
| repeat = get_bits(gb, 8); |
| if (i + repeat > 256 || get_bits_left(gb) < 0) { |
| av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); |
| return -1; |
| } |
| while (repeat--) |
| dst[i++] = val; |
| } |
| return 0; |
| } |
| |
| static int generate_bits_table(uint32_t *dst, const uint8_t *len_table) |
| { |
| int len, index; |
| uint32_t bits = 0; |
| |
| for (len = 32; len > 0; len--) { |
| for (index = 0; index < 256; index++) { |
| if (len_table[index] == len) |
| dst[index] = bits++; |
| } |
| if (bits & 1) { |
| av_log(NULL, AV_LOG_ERROR, "Error generating huffman table\n"); |
| return -1; |
| } |
| bits >>= 1; |
| } |
| return 0; |
| } |
| |
| static void generate_joint_tables(HYuvContext *s) |
| { |
| uint16_t symbols[1 << VLC_BITS]; |
| uint16_t bits[1 << VLC_BITS]; |
| uint8_t len[1 << VLC_BITS]; |
| if (s->bitstream_bpp < 24) { |
| int p, i, y, u; |
| for (p = 0; p < 3; p++) { |
| for (i = y = 0; y < 256; y++) { |
| int len0 = s->len[0][y]; |
| int limit = VLC_BITS - len0; |
| if(limit <= 0) |
| continue; |
| for (u = 0; u < 256; u++) { |
| int len1 = s->len[p][u]; |
| if (len1 > limit) |
| continue; |
| len[i] = len0 + len1; |
| bits[i] = (s->bits[0][y] << len1) + s->bits[p][u]; |
| symbols[i] = (y << 8) + u; |
| if(symbols[i] != 0xffff) // reserved to mean "invalid" |
| i++; |
| } |
| } |
| ff_free_vlc(&s->vlc[3 + p]); |
| ff_init_vlc_sparse(&s->vlc[3 + p], VLC_BITS, i, len, 1, 1, |
| bits, 2, 2, symbols, 2, 2, 0); |
| } |
| } else { |
| uint8_t (*map)[4] = (uint8_t(*)[4])s->pix_bgr_map; |
| int i, b, g, r, code; |
| int p0 = s->decorrelate; |
| int p1 = !s->decorrelate; |
| // restrict the range to +/-16 because that's pretty much guaranteed to |
| // cover all the combinations that fit in 11 bits total, and it doesn't |
| // matter if we miss a few rare codes. |
| for (i = 0, g = -16; g < 16; g++) { |
| int len0 = s->len[p0][g & 255]; |
| int limit0 = VLC_BITS - len0; |
| if (limit0 < 2) |
| continue; |
| for (b = -16; b < 16; b++) { |
| int len1 = s->len[p1][b & 255]; |
| int limit1 = limit0 - len1; |
| if (limit1 < 1) |
| continue; |
| code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255]; |
| for (r = -16; r < 16; r++) { |
| int len2 = s->len[2][r & 255]; |
| if (len2 > limit1) |
| continue; |
| len[i] = len0 + len1 + len2; |
| bits[i] = (code << len2) + s->bits[2][r & 255]; |
| if (s->decorrelate) { |
| map[i][G] = g; |
| map[i][B] = g + b; |
| map[i][R] = g + r; |
| } else { |
| map[i][B] = g; |
| map[i][G] = b; |
| map[i][R] = r; |
| } |
| i++; |
| } |
| } |
| } |
| ff_free_vlc(&s->vlc[3]); |
| init_vlc(&s->vlc[3], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0); |
| } |
| } |
| |
| static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length) |
| { |
| GetBitContext gb; |
| int i; |
| |
| init_get_bits(&gb, src, length * 8); |
| |
| for (i = 0; i < 3; i++) { |
| if (read_len_table(s->len[i], &gb) < 0) |
| return -1; |
| if (generate_bits_table(s->bits[i], s->len[i]) < 0) { |
| return -1; |
| } |
| ff_free_vlc(&s->vlc[i]); |
| init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, |
| s->bits[i], 4, 4, 0); |
| } |
| |
| generate_joint_tables(s); |
| |
| return (get_bits_count(&gb) + 7) / 8; |
| } |
| |
| static int read_old_huffman_tables(HYuvContext *s) |
| { |
| GetBitContext gb; |
| int i; |
| |
| init_get_bits(&gb, classic_shift_luma, |
| classic_shift_luma_table_size * 8); |
| if (read_len_table(s->len[0], &gb) < 0) |
| return -1; |
| |
| init_get_bits(&gb, classic_shift_chroma, |
| classic_shift_chroma_table_size * 8); |
| if (read_len_table(s->len[1], &gb) < 0) |
| return -1; |
| |
| for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i]; |
| for(i=0; i<256; i++) s->bits[1][i] = classic_add_chroma[i]; |
| |
| if (s->bitstream_bpp >= 24) { |
| memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); |
| memcpy(s->len[1] , s->len [0], 256 * sizeof(uint8_t)); |
| } |
| memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); |
| memcpy(s->len[2] , s->len [1], 256 * sizeof(uint8_t)); |
| |
| for (i = 0; i < 3; i++) { |
| ff_free_vlc(&s->vlc[i]); |
| init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, |
| s->bits[i], 4, 4, 0); |
| } |
| |
| generate_joint_tables(s); |
| |
| return 0; |
| } |
| |
| static av_cold void alloc_temp(HYuvContext *s) |
| { |
| int i; |
| |
| if (s->bitstream_bpp<24) { |
| for (i=0; i<3; i++) { |
| s->temp[i]= av_malloc(s->width + 16); |
| } |
| } else { |
| s->temp[0]= av_mallocz(4*s->width + 16); |
| } |
| } |
| |
| static av_cold int common_init(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| |
| s->avctx = avctx; |
| s->flags = avctx->flags; |
| |
| ff_dsputil_init(&s->dsp, avctx); |
| |
| s->width = avctx->width; |
| s->height = avctx->height; |
| av_assert1(s->width > 0 && s->height > 0); |
| |
| return 0; |
| } |
| |
| #if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER |
| static av_cold int decode_init(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| |
| common_init(avctx); |
| memset(s->vlc, 0, 3 * sizeof(VLC)); |
| |
| avctx->coded_frame = &s->picture; |
| avcodec_get_frame_defaults(&s->picture); |
| s->interlaced = s->height > 288; |
| |
| s->bgr32 = 1; |
| |
| if (avctx->extradata_size) { |
| if ((avctx->bits_per_coded_sample & 7) && |
| avctx->bits_per_coded_sample != 12) |
| s->version = 1; // do such files exist at all? |
| else |
| s->version = 2; |
| } else |
| s->version = 0; |
| |
| if (s->version == 2) { |
| int method, interlace; |
| |
| if (avctx->extradata_size < 4) |
| return -1; |
| |
| method = ((uint8_t*)avctx->extradata)[0]; |
| s->decorrelate = method & 64 ? 1 : 0; |
| s->predictor = method & 63; |
| s->bitstream_bpp = ((uint8_t*)avctx->extradata)[1]; |
| if (s->bitstream_bpp == 0) |
| s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; |
| interlace = (((uint8_t*)avctx->extradata)[2] & 0x30) >> 4; |
| s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; |
| s->context = ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0; |
| |
| if ( read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, |
| avctx->extradata_size - 4) < 0) |
| return -1; |
| }else{ |
| switch (avctx->bits_per_coded_sample & 7) { |
| case 1: |
| s->predictor = LEFT; |
| s->decorrelate = 0; |
| break; |
| case 2: |
| s->predictor = LEFT; |
| s->decorrelate = 1; |
| break; |
| case 3: |
| s->predictor = PLANE; |
| s->decorrelate = avctx->bits_per_coded_sample >= 24; |
| break; |
| case 4: |
| s->predictor = MEDIAN; |
| s->decorrelate = 0; |
| break; |
| default: |
| s->predictor = LEFT; //OLD |
| s->decorrelate = 0; |
| break; |
| } |
| s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; |
| s->context = 0; |
| |
| if (read_old_huffman_tables(s) < 0) |
| return -1; |
| } |
| |
| switch (s->bitstream_bpp) { |
| case 12: |
| avctx->pix_fmt = PIX_FMT_YUV420P; |
| break; |
| case 16: |
| if (s->yuy2) { |
| avctx->pix_fmt = PIX_FMT_YUYV422; |
| } else { |
| avctx->pix_fmt = PIX_FMT_YUV422P; |
| } |
| break; |
| case 24: |
| case 32: |
| if (s->bgr32) { |
| avctx->pix_fmt = PIX_FMT_RGB32; |
| } else { |
| avctx->pix_fmt = PIX_FMT_BGR24; |
| } |
| break; |
| default: |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if ((avctx->pix_fmt == PIX_FMT_YUV422P || avctx->pix_fmt == PIX_FMT_YUV420P) && avctx->width & 1) { |
| av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| if (s->predictor == MEDIAN && avctx->pix_fmt == PIX_FMT_YUV422P && avctx->width%4) { |
| av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| alloc_temp(s); |
| |
| return 0; |
| } |
| |
| static av_cold int decode_init_thread_copy(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| int i; |
| |
| avctx->coded_frame= &s->picture; |
| alloc_temp(s); |
| |
| for (i = 0; i < 6; i++) |
| s->vlc[i].table = NULL; |
| |
| if (s->version == 2) { |
| if (read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, |
| avctx->extradata_size) < 0) |
| return -1; |
| } else { |
| if (read_old_huffman_tables(s) < 0) |
| return -1; |
| } |
| |
| return 0; |
| } |
| #endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ |
| |
| #if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER |
| static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf) |
| { |
| int i; |
| int index = 0; |
| |
| for (i = 0; i < 256;) { |
| int val = len[i]; |
| int repeat = 0; |
| |
| for (; i < 256 && len[i] == val && repeat < 255; i++) |
| repeat++; |
| |
| av_assert0(val < 32 && val >0 && repeat<256 && repeat>0); |
| if (repeat > 7) { |
| buf[index++] = val; |
| buf[index++] = repeat; |
| } else { |
| buf[index++] = val | (repeat << 5); |
| } |
| } |
| |
| return index; |
| } |
| |
| static av_cold int encode_init(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| int i, j; |
| |
| common_init(avctx); |
| |
| avctx->extradata = av_mallocz(1024*30); // 256*3+4 == 772 |
| avctx->stats_out = av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132 |
| s->version = 2; |
| |
| avctx->coded_frame = &s->picture; |
| |
| switch (avctx->pix_fmt) { |
| case PIX_FMT_YUV420P: |
| case PIX_FMT_YUV422P: |
| if (s->width & 1) { |
| av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); |
| return AVERROR(EINVAL); |
| } |
| s->bitstream_bpp = avctx->pix_fmt == PIX_FMT_YUV420P ? 12 : 16; |
| break; |
| case PIX_FMT_RGB32: |
| s->bitstream_bpp = 32; |
| break; |
| case PIX_FMT_RGB24: |
| s->bitstream_bpp = 24; |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, "format not supported\n"); |
| return -1; |
| } |
| avctx->bits_per_coded_sample = s->bitstream_bpp; |
| s->decorrelate = s->bitstream_bpp >= 24; |
| s->predictor = avctx->prediction_method; |
| s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0; |
| if (avctx->context_model == 1) { |
| s->context = avctx->context_model; |
| if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) { |
| av_log(avctx, AV_LOG_ERROR, |
| "context=1 is not compatible with " |
| "2 pass huffyuv encoding\n"); |
| return -1; |
| } |
| }else s->context= 0; |
| |
| if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) { |
| if (avctx->pix_fmt == PIX_FMT_YUV420P) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Error: YV12 is not supported by huffyuv; use " |
| "vcodec=ffvhuff or format=422p\n"); |
| return -1; |
| } |
| if (avctx->context_model) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Error: per-frame huffman tables are not supported " |
| "by huffyuv; use vcodec=ffvhuff\n"); |
| return -1; |
| } |
| if (s->interlaced != ( s->height > 288 )) |
| av_log(avctx, AV_LOG_INFO, |
| "using huffyuv 2.2.0 or newer interlacing flag\n"); |
| } |
| |
| if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Error: RGB is incompatible with median predictor\n"); |
| return -1; |
| } |
| |
| ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6); |
| ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp; |
| ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20; |
| if (s->context) |
| ((uint8_t*)avctx->extradata)[2] |= 0x40; |
| ((uint8_t*)avctx->extradata)[3] = 0; |
| s->avctx->extradata_size = 4; |
| |
| if (avctx->stats_in) { |
| char *p = avctx->stats_in; |
| |
| for (i = 0; i < 3; i++) |
| for (j = 0; j < 256; j++) |
| s->stats[i][j] = 1; |
| |
| for (;;) { |
| for (i = 0; i < 3; i++) { |
| char *next; |
| |
| for (j = 0; j < 256; j++) { |
| s->stats[i][j] += strtol(p, &next, 0); |
| if (next == p) return -1; |
| p = next; |
| } |
| } |
| if (p[0] == 0 || p[1] == 0 || p[2] == 0) break; |
| } |
| } else { |
| for (i = 0; i < 3; i++) |
| for (j = 0; j < 256; j++) { |
| int d = FFMIN(j, 256 - j); |
| |
| s->stats[i][j] = 100000000 / (d + 1); |
| } |
| } |
| |
| for (i = 0; i < 3; i++) { |
| ff_huff_gen_len_table(s->len[i], s->stats[i]); |
| |
| if (generate_bits_table(s->bits[i], s->len[i]) < 0) { |
| return -1; |
| } |
| |
| s->avctx->extradata_size += |
| store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]); |
| } |
| |
| if (s->context) { |
| for (i = 0; i < 3; i++) { |
| int pels = s->width * s->height / (i ? 40 : 10); |
| for (j = 0; j < 256; j++) { |
| int d = FFMIN(j, 256 - j); |
| s->stats[i][j] = pels/(d + 1); |
| } |
| } |
| } else { |
| for (i = 0; i < 3; i++) |
| for (j = 0; j < 256; j++) |
| s->stats[i][j]= 0; |
| } |
| |
| alloc_temp(s); |
| |
| s->picture_number=0; |
| |
| return 0; |
| } |
| #endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ |
| |
| /* TODO instead of restarting the read when the code isn't in the first level |
| * of the joint table, jump into the 2nd level of the individual table. */ |
| #define READ_2PIX(dst0, dst1, plane1){\ |
| uint16_t code = get_vlc2(&s->gb, s->vlc[3+plane1].table, VLC_BITS, 1);\ |
| if(code != 0xffff){\ |
| dst0 = code>>8;\ |
| dst1 = code;\ |
| }else{\ |
| dst0 = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);\ |
| dst1 = get_vlc2(&s->gb, s->vlc[plane1].table, VLC_BITS, 3);\ |
| }\ |
| } |
| |
| static void decode_422_bitstream(HYuvContext *s, int count) |
| { |
| int i; |
| |
| count /= 2; |
| |
| if (count >= (get_bits_left(&s->gb)) / (31 * 4)) { |
| for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { |
| READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); |
| READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
| } |
| } else { |
| for (i = 0; i < count; i++) { |
| READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); |
| READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
| } |
| } |
| } |
| |
| static void decode_gray_bitstream(HYuvContext *s, int count) |
| { |
| int i; |
| |
| count/=2; |
| |
| if (count >= (get_bits_left(&s->gb)) / (31 * 2)) { |
| for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { |
| READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
| } |
| } else { |
| for(i=0; i<count; i++){ |
| READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
| } |
| } |
| } |
| |
| #if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER |
| static int encode_422_bitstream(HYuvContext *s, int offset, int count) |
| { |
| int i; |
| const uint8_t *y = s->temp[0] + offset; |
| const uint8_t *u = s->temp[1] + offset / 2; |
| const uint8_t *v = s->temp[2] + offset / 2; |
| |
| if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) { |
| av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); |
| return -1; |
| } |
| |
| #define LOAD4\ |
| int y0 = y[2 * i];\ |
| int y1 = y[2 * i + 1];\ |
| int u0 = u[i];\ |
| int v0 = v[i]; |
| |
| count /= 2; |
| |
| if (s->flags & CODEC_FLAG_PASS1) { |
| for(i = 0; i < count; i++) { |
| LOAD4; |
| s->stats[0][y0]++; |
| s->stats[1][u0]++; |
| s->stats[0][y1]++; |
| s->stats[2][v0]++; |
| } |
| } |
| if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) |
| return 0; |
| if (s->context) { |
| for (i = 0; i < count; i++) { |
| LOAD4; |
| s->stats[0][y0]++; |
| put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); |
| s->stats[1][u0]++; |
| put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); |
| s->stats[0][y1]++; |
| put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); |
| s->stats[2][v0]++; |
| put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); |
| } |
| } else { |
| for(i = 0; i < count; i++) { |
| LOAD4; |
| put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); |
| put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); |
| put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); |
| put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); |
| } |
| } |
| return 0; |
| } |
| |
| static int encode_gray_bitstream(HYuvContext *s, int count) |
| { |
| int i; |
| |
| if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) { |
| av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); |
| return -1; |
| } |
| |
| #define LOAD2\ |
| int y0 = s->temp[0][2 * i];\ |
| int y1 = s->temp[0][2 * i + 1]; |
| #define STAT2\ |
| s->stats[0][y0]++;\ |
| s->stats[0][y1]++; |
| #define WRITE2\ |
| put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\ |
| put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); |
| |
| count /= 2; |
| |
| if (s->flags & CODEC_FLAG_PASS1) { |
| for (i = 0; i < count; i++) { |
| LOAD2; |
| STAT2; |
| } |
| } |
| if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) |
| return 0; |
| |
| if (s->context) { |
| for (i = 0; i < count; i++) { |
| LOAD2; |
| STAT2; |
| WRITE2; |
| } |
| } else { |
| for (i = 0; i < count; i++) { |
| LOAD2; |
| WRITE2; |
| } |
| } |
| return 0; |
| } |
| #endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ |
| |
| static av_always_inline void decode_bgr_1(HYuvContext *s, int count, |
| int decorrelate, int alpha) |
| { |
| int i; |
| for (i = 0; i < count; i++) { |
| int code = get_vlc2(&s->gb, s->vlc[3].table, VLC_BITS, 1); |
| if (code != -1) { |
| *(uint32_t*)&s->temp[0][4 * i] = s->pix_bgr_map[code]; |
| } else if(decorrelate) { |
| s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); |
| s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) + |
| s->temp[0][4 * i + G]; |
| s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + |
| s->temp[0][4 * i + G]; |
| } else { |
| s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3); |
| s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); |
| s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); |
| } |
| if (alpha) |
| s->temp[0][4 * i + A] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); |
| } |
| } |
| |
| static void decode_bgr_bitstream(HYuvContext *s, int count) |
| { |
| if (s->decorrelate) { |
| if (s->bitstream_bpp==24) |
| decode_bgr_1(s, count, 1, 0); |
| else |
| decode_bgr_1(s, count, 1, 1); |
| } else { |
| if (s->bitstream_bpp==24) |
| decode_bgr_1(s, count, 0, 0); |
| else |
| decode_bgr_1(s, count, 0, 1); |
| } |
| } |
| |
| static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes) |
| { |
| int i; |
| |
| if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 4*planes*count) { |
| av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); |
| return -1; |
| } |
| |
| #define LOAD3\ |
| int g = s->temp[0][planes==3 ? 3*i + 1 : 4*i + G];\ |
| int b = (s->temp[0][planes==3 ? 3*i + 2 : 4*i + B] - g) & 0xff;\ |
| int r = (s->temp[0][planes==3 ? 3*i + 0 : 4*i + R] - g) & 0xff;\ |
| int a = s->temp[0][planes*i + A]; |
| #define STAT3\ |
| s->stats[0][b]++;\ |
| s->stats[1][g]++;\ |
| s->stats[2][r]++;\ |
| if(planes==4) s->stats[2][a]++; |
| #define WRITE3\ |
| put_bits(&s->pb, s->len[1][g], s->bits[1][g]);\ |
| put_bits(&s->pb, s->len[0][b], s->bits[0][b]);\ |
| put_bits(&s->pb, s->len[2][r], s->bits[2][r]);\ |
| if(planes==4) put_bits(&s->pb, s->len[2][a], s->bits[2][a]); |
| |
| if ((s->flags & CODEC_FLAG_PASS1) && |
| (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { |
| for (i = 0; i < count; i++) { |
| LOAD3; |
| STAT3; |
| } |
| } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) { |
| for (i = 0; i < count; i++) { |
| LOAD3; |
| STAT3; |
| WRITE3; |
| } |
| } else { |
| for (i = 0; i < count; i++) { |
| LOAD3; |
| WRITE3; |
| } |
| } |
| return 0; |
| } |
| |
| #if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER |
| static void draw_slice(HYuvContext *s, int y) |
| { |
| int h, cy, i; |
| int offset[AV_NUM_DATA_POINTERS]; |
| |
| if (s->avctx->draw_horiz_band==NULL) |
| return; |
| |
| h = y - s->last_slice_end; |
| y -= h; |
| |
| if (s->bitstream_bpp == 12) { |
| cy = y>>1; |
| } else { |
| cy = y; |
| } |
| |
| offset[0] = s->picture.linesize[0]*y; |
| offset[1] = s->picture.linesize[1]*cy; |
| offset[2] = s->picture.linesize[2]*cy; |
| for (i = 3; i < AV_NUM_DATA_POINTERS; i++) |
| offset[i] = 0; |
| emms_c(); |
| |
| s->avctx->draw_horiz_band(s->avctx, &s->picture, offset, y, 3, h); |
| |
| s->last_slice_end = y + h; |
| } |
| |
| static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, |
| AVPacket *avpkt) |
| { |
| const uint8_t *buf = avpkt->data; |
| int buf_size = avpkt->size; |
| HYuvContext *s = avctx->priv_data; |
| const int width = s->width; |
| const int width2 = s->width>>1; |
| const int height = s->height; |
| int fake_ystride, fake_ustride, fake_vstride; |
| AVFrame * const p = &s->picture; |
| int table_size = 0; |
| |
| AVFrame *picture = data; |
| |
| av_fast_malloc(&s->bitstream_buffer, |
| &s->bitstream_buffer_size, |
| buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| if (!s->bitstream_buffer) |
| return AVERROR(ENOMEM); |
| |
| memset(s->bitstream_buffer + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); |
| s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, |
| (const uint32_t*)buf, buf_size / 4); |
| |
| if (p->data[0]) |
| ff_thread_release_buffer(avctx, p); |
| |
| p->reference = 0; |
| if (ff_thread_get_buffer(avctx, p) < 0) { |
| av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| return -1; |
| } |
| |
| if (s->context) { |
| table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); |
| if (table_size < 0) |
| return -1; |
| } |
| |
| if ((unsigned)(buf_size-table_size) >= INT_MAX / 8) |
| return -1; |
| |
| init_get_bits(&s->gb, s->bitstream_buffer+table_size, |
| (buf_size-table_size) * 8); |
| |
| fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0]; |
| fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1]; |
| fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; |
| |
| s->last_slice_end = 0; |
| |
| if (s->bitstream_bpp < 24) { |
| int y, cy; |
| int lefty, leftu, leftv; |
| int lefttopy, lefttopu, lefttopv; |
| |
| if (s->yuy2) { |
| p->data[0][3] = get_bits(&s->gb, 8); |
| p->data[0][2] = get_bits(&s->gb, 8); |
| p->data[0][1] = get_bits(&s->gb, 8); |
| p->data[0][0] = get_bits(&s->gb, 8); |
| |
| av_log(avctx, AV_LOG_ERROR, |
| "YUY2 output is not implemented yet\n"); |
| return -1; |
| } else { |
| |
| leftv = p->data[2][0] = get_bits(&s->gb, 8); |
| lefty = p->data[0][1] = get_bits(&s->gb, 8); |
| leftu = p->data[1][0] = get_bits(&s->gb, 8); |
| p->data[0][0] = get_bits(&s->gb, 8); |
| |
| switch (s->predictor) { |
| case LEFT: |
| case PLANE: |
| decode_422_bitstream(s, width-2); |
| lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty); |
| if (!(s->flags&CODEC_FLAG_GRAY)) { |
| leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); |
| leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| } |
| |
| for (cy = y = 1; y < s->height; y++, cy++) { |
| uint8_t *ydst, *udst, *vdst; |
| |
| if (s->bitstream_bpp == 12) { |
| decode_gray_bitstream(s, width); |
| |
| ydst = p->data[0] + p->linesize[0] * y; |
| |
| lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); |
| if (s->predictor == PLANE) { |
| if (y > s->interlaced) |
| s->dsp.add_bytes(ydst, ydst - fake_ystride, width); |
| } |
| y++; |
| if (y >= s->height) break; |
| } |
| |
| draw_slice(s, y); |
| |
| ydst = p->data[0] + p->linesize[0]*y; |
| udst = p->data[1] + p->linesize[1]*cy; |
| vdst = p->data[2] + p->linesize[2]*cy; |
| |
| decode_422_bitstream(s, width); |
| lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); |
| if (!(s->flags & CODEC_FLAG_GRAY)) { |
| leftu= s->dsp.add_hfyu_left_prediction(udst, s->temp[1], width2, leftu); |
| leftv= s->dsp.add_hfyu_left_prediction(vdst, s->temp[2], width2, leftv); |
| } |
| if (s->predictor == PLANE) { |
| if (cy > s->interlaced) { |
| s->dsp.add_bytes(ydst, ydst - fake_ystride, width); |
| if (!(s->flags & CODEC_FLAG_GRAY)) { |
| s->dsp.add_bytes(udst, udst - fake_ustride, width2); |
| s->dsp.add_bytes(vdst, vdst - fake_vstride, width2); |
| } |
| } |
| } |
| } |
| draw_slice(s, height); |
| |
| break; |
| case MEDIAN: |
| /* first line except first 2 pixels is left predicted */ |
| decode_422_bitstream(s, width - 2); |
| lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width - 2, lefty); |
| if (!(s->flags & CODEC_FLAG_GRAY)) { |
| leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); |
| leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| } |
| |
| cy = y = 1; |
| |
| /* second line is left predicted for interlaced case */ |
| if (s->interlaced) { |
| decode_422_bitstream(s, width); |
| lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty); |
| if (!(s->flags & CODEC_FLAG_GRAY)) { |
| leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); |
| leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); |
| } |
| y++; cy++; |
| } |
| |
| /* next 4 pixels are left predicted too */ |
| decode_422_bitstream(s, 4); |
| lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty); |
| if (!(s->flags&CODEC_FLAG_GRAY)) { |
| leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu); |
| leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + fake_vstride, s->temp[2], 2, leftv); |
| } |
| |
| /* next line except the first 4 pixels is median predicted */ |
| lefttopy = p->data[0][3]; |
| decode_422_bitstream(s, width - 4); |
| s->dsp.add_hfyu_median_prediction(p->data[0] + fake_ystride+4, p->data[0]+4, s->temp[0], width-4, &lefty, &lefttopy); |
| if (!(s->flags&CODEC_FLAG_GRAY)) { |
| lefttopu = p->data[1][1]; |
| lefttopv = p->data[2][1]; |
| s->dsp.add_hfyu_median_prediction(p->data[1] + fake_ustride+2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu); |
| s->dsp.add_hfyu_median_prediction(p->data[2] + fake_vstride+2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); |
| } |
| y++; cy++; |
| |
| for (; y<height; y++, cy++) { |
| uint8_t *ydst, *udst, *vdst; |
| |
| if (s->bitstream_bpp == 12) { |
| while (2 * cy > y) { |
| decode_gray_bitstream(s, width); |
| ydst = p->data[0] + p->linesize[0] * y; |
| s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); |
| y++; |
| } |
| if (y >= height) break; |
| } |
| draw_slice(s, y); |
| |
| decode_422_bitstream(s, width); |
| |
| ydst = p->data[0] + p->linesize[0] * y; |
| udst = p->data[1] + p->linesize[1] * cy; |
| vdst = p->data[2] + p->linesize[2] * cy; |
| |
| s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); |
| if (!(s->flags & CODEC_FLAG_GRAY)) { |
| s->dsp.add_hfyu_median_prediction(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); |
| s->dsp.add_hfyu_median_prediction(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); |
| } |
| } |
| |
| draw_slice(s, height); |
| break; |
| } |
| } |
| } else { |
| int y; |
| int leftr, leftg, leftb, lefta; |
| const int last_line = (height - 1) * p->linesize[0]; |
| |
| if (s->bitstream_bpp == 32) { |
| lefta = p->data[0][last_line+A] = get_bits(&s->gb, 8); |
| leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); |
| leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); |
| leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); |
| } else { |
| leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); |
| leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); |
| leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); |
| lefta = p->data[0][last_line+A] = 255; |
| skip_bits(&s->gb, 8); |
| } |
| |
| if (s->bgr32) { |
| switch (s->predictor) { |
| case LEFT: |
| case PLANE: |
| decode_bgr_bitstream(s, width - 1); |
| s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width - 1, &leftr, &leftg, &leftb, &lefta); |
| |
| for (y = s->height - 2; y >= 0; y--) { //Yes it is stored upside down. |
| decode_bgr_bitstream(s, width); |
| |
| s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb, &lefta); |
| if (s->predictor == PLANE) { |
| if (s->bitstream_bpp != 32) lefta = 0; |
| if ((y & s->interlaced) == 0 && |
| y < s->height - 1 - s->interlaced) { |
| s->dsp.add_bytes(p->data[0] + p->linesize[0] * y, |
| p->data[0] + p->linesize[0] * y + |
| fake_ystride, fake_ystride); |
| } |
| } |
| } |
| // just 1 large slice as this is not possible in reverse order |
| draw_slice(s, height); |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, |
| "prediction type not supported!\n"); |
| } |
| }else{ |
| av_log(avctx, AV_LOG_ERROR, |
| "BGR24 output is not implemented yet\n"); |
| return -1; |
| } |
| } |
| emms_c(); |
| |
| *picture = *p; |
| *data_size = sizeof(AVFrame); |
| |
| return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size; |
| } |
| #endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ |
| |
| static int common_end(HYuvContext *s) |
| { |
| int i; |
| |
| for(i = 0; i < 3; i++) { |
| av_freep(&s->temp[i]); |
| } |
| return 0; |
| } |
| |
| #if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER |
| static av_cold int decode_end(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| int i; |
| |
| if (s->picture.data[0]) |
| avctx->release_buffer(avctx, &s->picture); |
| |
| common_end(s); |
| av_freep(&s->bitstream_buffer); |
| |
| for (i = 0; i < 6; i++) { |
| ff_free_vlc(&s->vlc[i]); |
| } |
| |
| return 0; |
| } |
| #endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ |
| |
| #if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER |
| static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
| const AVFrame *pict, int *got_packet) |
| { |
| HYuvContext *s = avctx->priv_data; |
| const int width = s->width; |
| const int width2 = s->width>>1; |
| const int height = s->height; |
| const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0]; |
| const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1]; |
| const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2]; |
| AVFrame * const p = &s->picture; |
| int i, j, size = 0, ret; |
| |
| if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0) |
| return ret; |
| |
| *p = *pict; |
| p->pict_type = AV_PICTURE_TYPE_I; |
| p->key_frame = 1; |
| |
| if (s->context) { |
| for (i = 0; i < 3; i++) { |
| ff_huff_gen_len_table(s->len[i], s->stats[i]); |
| if (generate_bits_table(s->bits[i], s->len[i]) < 0) |
| return -1; |
| size += store_table(s, s->len[i], &pkt->data[size]); |
| } |
| |
| for (i = 0; i < 3; i++) |
| for (j = 0; j < 256; j++) |
| s->stats[i][j] >>= 1; |
| } |
| |
| init_put_bits(&s->pb, pkt->data + size, pkt->size - size); |
| |
| if (avctx->pix_fmt == PIX_FMT_YUV422P || |
| avctx->pix_fmt == PIX_FMT_YUV420P) { |
| int lefty, leftu, leftv, y, cy; |
| |
| put_bits(&s->pb, 8, leftv = p->data[2][0]); |
| put_bits(&s->pb, 8, lefty = p->data[0][1]); |
| put_bits(&s->pb, 8, leftu = p->data[1][0]); |
| put_bits(&s->pb, 8, p->data[0][0]); |
| |
| lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0); |
| leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0); |
| leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0); |
| |
| encode_422_bitstream(s, 2, width-2); |
| |
| if (s->predictor==MEDIAN) { |
| int lefttopy, lefttopu, lefttopv; |
| cy = y = 1; |
| if (s->interlaced) { |
| lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty); |
| leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu); |
| leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv); |
| |
| encode_422_bitstream(s, 0, width); |
| y++; cy++; |
| } |
| |
| lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty); |
| leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu); |
| leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv); |
| |
| encode_422_bitstream(s, 0, 4); |
| |
| lefttopy = p->data[0][3]; |
| lefttopu = p->data[1][1]; |
| lefttopv = p->data[2][1]; |
| s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy); |
| s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu); |
| s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv); |
| encode_422_bitstream(s, 0, width - 4); |
| y++; cy++; |
| |
| for (; y < height; y++,cy++) { |
| uint8_t *ydst, *udst, *vdst; |
| |
| if (s->bitstream_bpp == 12) { |
| while (2 * cy > y) { |
| ydst = p->data[0] + p->linesize[0] * y; |
| s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); |
| encode_gray_bitstream(s, width); |
| y++; |
| } |
| if (y >= height) break; |
| } |
| ydst = p->data[0] + p->linesize[0] * y; |
| udst = p->data[1] + p->linesize[1] * cy; |
| vdst = p->data[2] + p->linesize[2] * cy; |
| |
| s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); |
| s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu); |
| s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv); |
| |
| encode_422_bitstream(s, 0, width); |
| } |
| } else { |
| for (cy = y = 1; y < height; y++, cy++) { |
| uint8_t *ydst, *udst, *vdst; |
| |
| /* encode a luma only line & y++ */ |
| if (s->bitstream_bpp == 12) { |
| ydst = p->data[0] + p->linesize[0] * y; |
| |
| if (s->predictor == PLANE && s->interlaced < y) { |
| s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); |
| |
| lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); |
| } else { |
| lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); |
| } |
| encode_gray_bitstream(s, width); |
| y++; |
| if (y >= height) break; |
| } |
| |
| ydst = p->data[0] + p->linesize[0] * y; |
| udst = p->data[1] + p->linesize[1] * cy; |
| vdst = p->data[2] + p->linesize[2] * cy; |
| |
| if (s->predictor == PLANE && s->interlaced < cy) { |
| s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); |
| s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2); |
| s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2); |
| |
| lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); |
| leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu); |
| leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv); |
| } else { |
| lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); |
| leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu); |
| leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv); |
| } |
| |
| encode_422_bitstream(s, 0, width); |
| } |
| } |
| } else if(avctx->pix_fmt == PIX_FMT_RGB32) { |
| uint8_t *data = p->data[0] + (height - 1) * p->linesize[0]; |
| const int stride = -p->linesize[0]; |
| const int fake_stride = -fake_ystride; |
| int y; |
| int leftr, leftg, leftb, lefta; |
| |
| put_bits(&s->pb, 8, lefta = data[A]); |
| put_bits(&s->pb, 8, leftr = data[R]); |
| put_bits(&s->pb, 8, leftg = data[G]); |
| put_bits(&s->pb, 8, leftb = data[B]); |
| |
| sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1, &leftr, &leftg, &leftb, &lefta); |
| encode_bgra_bitstream(s, width - 1, 4); |
| |
| for (y = 1; y < s->height; y++) { |
| uint8_t *dst = data + y*stride; |
| if (s->predictor == PLANE && s->interlaced < y) { |
| s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4); |
| sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb, &lefta); |
| } else { |
| sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb, &lefta); |
| } |
| encode_bgra_bitstream(s, width, 4); |
| } |
| }else if(avctx->pix_fmt == PIX_FMT_RGB24){ |
| uint8_t *data = p->data[0] + (height-1)*p->linesize[0]; |
| const int stride = -p->linesize[0]; |
| const int fake_stride = -fake_ystride; |
| int y; |
| int leftr, leftg, leftb; |
| |
| put_bits(&s->pb, 8, leftr= data[0]); |
| put_bits(&s->pb, 8, leftg= data[1]); |
| put_bits(&s->pb, 8, leftb= data[2]); |
| put_bits(&s->pb, 8, 0); |
| |
| sub_left_prediction_rgb24(s, s->temp[0], data+3, width-1, &leftr, &leftg, &leftb); |
| encode_bgra_bitstream(s, width-1, 3); |
| |
| for(y=1; y<s->height; y++){ |
| uint8_t *dst = data + y*stride; |
| if(s->predictor == PLANE && s->interlaced < y){ |
| s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width*3); |
| sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb); |
| }else{ |
| sub_left_prediction_rgb24(s, s->temp[0], dst, width, &leftr, &leftg, &leftb); |
| } |
| encode_bgra_bitstream(s, width, 3); |
| } |
| } else { |
| av_log(avctx, AV_LOG_ERROR, "Format not supported!\n"); |
| } |
| emms_c(); |
| |
| size += (put_bits_count(&s->pb) + 31) / 8; |
| put_bits(&s->pb, 16, 0); |
| put_bits(&s->pb, 15, 0); |
| size /= 4; |
| |
| if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) { |
| int j; |
| char *p = avctx->stats_out; |
| char *end = p + 1024*30; |
| for (i = 0; i < 3; i++) { |
| for (j = 0; j < 256; j++) { |
| snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]); |
| p += strlen(p); |
| s->stats[i][j]= 0; |
| } |
| snprintf(p, end-p, "\n"); |
| p++; |
| } |
| } else |
| avctx->stats_out[0] = '\0'; |
| if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { |
| flush_put_bits(&s->pb); |
| s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size); |
| } |
| |
| s->picture_number++; |
| |
| pkt->size = size * 4; |
| pkt->flags |= AV_PKT_FLAG_KEY; |
| *got_packet = 1; |
| |
| return 0; |
| } |
| |
| static av_cold int encode_end(AVCodecContext *avctx) |
| { |
| HYuvContext *s = avctx->priv_data; |
| |
| common_end(s); |
| |
| av_freep(&avctx->extradata); |
| av_freep(&avctx->stats_out); |
| |
| return 0; |
| } |
| #endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ |
| |
| #if CONFIG_HUFFYUV_DECODER |
| AVCodec ff_huffyuv_decoder = { |
| .name = "huffyuv", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_HUFFYUV, |
| .priv_data_size = sizeof(HYuvContext), |
| .init = decode_init, |
| .close = decode_end, |
| .decode = decode_frame, |
| .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | |
| CODEC_CAP_FRAME_THREADS, |
| .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), |
| .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), |
| }; |
| #endif |
| |
| #if CONFIG_FFVHUFF_DECODER |
| AVCodec ff_ffvhuff_decoder = { |
| .name = "ffvhuff", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_FFVHUFF, |
| .priv_data_size = sizeof(HYuvContext), |
| .init = decode_init, |
| .close = decode_end, |
| .decode = decode_frame, |
| .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | |
| CODEC_CAP_FRAME_THREADS, |
| .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), |
| .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), |
| }; |
| #endif |
| |
| #if CONFIG_HUFFYUV_ENCODER |
| AVCodec ff_huffyuv_encoder = { |
| .name = "huffyuv", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_HUFFYUV, |
| .priv_data_size = sizeof(HYuvContext), |
| .init = encode_init, |
| .encode2 = encode_frame, |
| .close = encode_end, |
| .pix_fmts = (const enum PixelFormat[]){ |
| PIX_FMT_YUV422P, PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_NONE |
| }, |
| .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), |
| }; |
| #endif |
| |
| #if CONFIG_FFVHUFF_ENCODER |
| AVCodec ff_ffvhuff_encoder = { |
| .name = "ffvhuff", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_FFVHUFF, |
| .priv_data_size = sizeof(HYuvContext), |
| .init = encode_init, |
| .encode2 = encode_frame, |
| .close = encode_end, |
| .pix_fmts = (const enum PixelFormat[]){ |
| PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_NONE |
| }, |
| .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), |
| }; |
| #endif |