X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fffv1.c;h=682d111c0c17e6674fb41f4b06ffd46f08999723;hb=43e0e0c4e56d754988f6d2d7eec1c302cee5d5ec;hp=570999a32ff2c23c3f8c6dbe693f7fcde9ec2222;hpb=7a00bbad2100367481240e62876b941b5c4befdc;p=ffmpeg diff --git a/libavcodec/ffv1.c b/libavcodec/ffv1.c index 570999a32ff..682d111c0c1 100644 --- a/libavcodec/ffv1.c +++ b/libavcodec/ffv1.c @@ -3,1041 +3,298 @@ * * Copyright (c) 2003 Michael Niedermayer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file libavcodec/ffv1.c - * FF Video Codec 1 (an experimental lossless codec) + * @file + * FF Video Codec 1 (a lossless codec) */ +#include "libavutil/avassert.h" #include "avcodec.h" -#include "bitstream.h" +#include "get_bits.h" +#include "put_bits.h" #include "dsputil.h" #include "rangecoder.h" #include "golomb.h" #include "mathops.h" - -#define MAX_PLANES 4 -#define CONTEXT_SIZE 32 - -extern const uint8_t ff_log2_run[32]; - -static const int8_t quant3[256]={ - 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, --1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0, -}; -static const int8_t quant5[256]={ - 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1, -}; -static const int8_t quant7[256]={ - 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, --2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1, -}; -static const int8_t quant9[256]={ - 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3, --3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1, -}; -static const int8_t quant11[256]={ - 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4, --4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, --4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1, -}; -static const int8_t quant13[256]={ - 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, --6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, --6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, --6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, --6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, --6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, --4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1, +#include "ffv1.h" + +const int8_t ffv1_quant5_10bit[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0, }; -typedef struct VlcState{ - int16_t drift; - uint16_t error_sum; - int8_t bias; - uint8_t count; -} VlcState; - -typedef struct PlaneContext{ - int context_count; - uint8_t (*state)[CONTEXT_SIZE]; - VlcState *vlc_state; - uint8_t interlace_bit_state[2]; -} PlaneContext; - -typedef struct FFV1Context{ - AVCodecContext *avctx; - RangeCoder c; - GetBitContext gb; - PutBitContext pb; - int version; - int width, height; - int chroma_h_shift, chroma_v_shift; - int flags; - int picture_number; - AVFrame picture; - int plane_count; - int ac; ///< 1-> CABAC 0-> golomb rice - PlaneContext plane[MAX_PLANES]; - int16_t quant_table[5][256]; - int run_index; - int colorspace; - - DSPContext dsp; -}FFV1Context; - -static av_always_inline int fold(int diff, int bits){ - if(bits==8) - diff= (int8_t)diff; - else{ - diff+= 1<<(bits-1); - diff&=(1<quant_table[3][127]){ - const int TT= last2[0]; - const int LL= src[-2]; - return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF] - +f->quant_table[3][(LL-L) & 0xFF] + f->quant_table[4][(TT-T) & 0xFF]; - }else - return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF]; -} - -static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){ - int i; - - if(v){ - const int a= FFABS(v); - const int e= av_log2(a); - put_rac(c, state+0, 0); - - assert(e<=9); - - for(i=0; i=0; i--){ - put_rac(c, state+22+i, (a>>i)&1); //22..31 - } - - if(is_signed) - put_rac(c, state+11 + e, v < 0); //11..21 - }else{ - put_rac(c, state+0, 1); - } -} - -static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ - if(get_rac(c, state+0)) - return 0; - else{ - int i, e, a; - e= 0; - while(get_rac(c, state+1 + e)){ //1..10 - e++; - } - assert(e<=9); - - a= 1; - for(i=e-1; i>=0; i--){ - a += a + get_rac(c, state+22 + i); //22..31 - } - - if(is_signed && get_rac(c, state+11 + e)) //11..21 - return -a; - else - return a; - } -} - -static inline void update_vlc_state(VlcState * const state, const int v){ - int drift= state->drift; - int count= state->count; - state->error_sum += FFABS(v); - drift += v; - - if(count == 128){ //FIXME variable - count >>= 1; - drift >>= 1; - state->error_sum >>= 1; - } - count++; - - if(drift <= -count){ - if(state->bias > -128) state->bias--; - - drift += count; - if(drift <= -count) - drift= -count + 1; - }else if(drift > 0){ - if(state->bias < 127) state->bias++; - - drift -= count; - if(drift > 0) - drift= 0; - } - - state->drift= drift; - state->count= count; -} - -static inline void put_vlc_symbol(PutBitContext *pb, VlcState * const state, int v, int bits){ - int i, k, code; -//printf("final: %d ", v); - v = fold(v - state->bias, bits); +const int8_t ffv1_quant5[256] = { + 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1, +}; - i= state->count; - k=0; - while(i < state->error_sum){ //FIXME optimize - k++; - i += i; - } +const int8_t ffv1_quant9_10bit[256] = { + 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, + -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, + -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, + -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, +}; - assert(k<=8); +const int8_t ffv1_quant11[256] = { + 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, + -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4, + -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, + -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1, +}; -#if 0 // JPEG LS - if(k==0 && 2*state->drift <= - state->count) code= v ^ (-1); - else code= v; -#else - code= v ^ ((2*state->drift + state->count)>>31); -#endif +const uint8_t ffv1_ver2_state[256] = { + 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49, + 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39, + 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52, + 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69, + 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97, + 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98, + 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125, + 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129, + 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148, + 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160, + 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178, + 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196, + 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214, + 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225, + 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242, + 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255, +}; -//printf("v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code, state->bias, state->error_sum, state->drift, state->count, k); - set_sr_golomb(pb, code, k, 12, bits); - update_vlc_state(state, v); -} +int ffv1_common_init(AVCodecContext *avctx) +{ + FFV1Context *s = avctx->priv_data; -static inline int get_vlc_symbol(GetBitContext *gb, VlcState * const state, int bits){ - int k, i, v, ret; + s->avctx = avctx; + s->flags = avctx->flags; - i= state->count; - k=0; - while(i < state->error_sum){ //FIXME optimize - k++; - i += i; - } + if (!avctx->width || !avctx->height) + return AVERROR_INVALIDDATA; - assert(k<=8); + avcodec_get_frame_defaults(&s->picture); - v= get_sr_golomb(gb, k, 12, bits); -//printf("v:%d bias:%d error:%d drift:%d count:%d k:%d", v, state->bias, state->error_sum, state->drift, state->count, k); + ff_dsputil_init(&s->dsp, avctx); -#if 0 // JPEG LS - if(k==0 && 2*state->drift <= - state->count) v ^= (-1); -#else - v ^= ((2*state->drift + state->count)>>31); -#endif + s->width = avctx->width; + s->height = avctx->height; - ret= fold(v + state->bias, bits); + // defaults + s->num_h_slices = 1; + s->num_v_slices = 1; - update_vlc_state(state, v); -//printf("final: %d\n", ret); - return ret; + return 0; } -#if CONFIG_FFV1_ENCODER -static inline int encode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){ - PlaneContext * const p= &s->plane[plane_index]; - RangeCoder * const c= &s->c; - int x; - int run_index= s->run_index; - int run_count=0; - int run_mode=0; - - if(s->ac){ - if(c->bytestream_end - c->bytestream < w*20){ - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - }else{ - if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < w*4){ - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; +int ffv1_init_slice_state(FFV1Context *f, FFV1Context *fs) +{ + int j; + + fs->plane_count = f->plane_count; + fs->transparency = f->transparency; + for (j = 0; j < f->plane_count; j++) { + PlaneContext *const p = &fs->plane[j]; + + if (fs->ac) { + if (!p->state) + p->state = av_malloc(CONTEXT_SIZE * p->context_count * + sizeof(uint8_t)); + if (!p->state) + return AVERROR(ENOMEM); + } else { + if (!p->vlc_state) + p->vlc_state = av_malloc(p->context_count * sizeof(VlcState)); + if (!p->vlc_state) + return AVERROR(ENOMEM); } } - for(x=0; xac){ - put_symbol(c, p->state[context], diff, 1); - }else{ - if(context == 0) run_mode=1; - - if(run_mode){ - - if(diff){ - while(run_count >= 1<pb, 1, 1); - } - - put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count); - if(run_index) run_index--; - run_count=0; - run_mode=0; - if(diff>0) diff--; - }else{ - run_count++; - } - } - -// printf("count:%d index:%d, mode:%d, x:%d y:%d pos:%d\n", run_count, run_index, run_mode, x, y, (int)put_bits_count(&s->pb)); - - if(run_mode == 0) - put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits); - } - } - if(run_mode){ - while(run_count >= 1<pb, 1, 1); + if (fs->ac > 1) { + //FIXME only redo if state_transition changed + for (j = 1; j < 256; j++) { + fs->c.one_state[j] = f->state_transition[j]; + fs->c.zero_state[256 - j] = 256 - fs->c.one_state[j]; } - - if(run_count) - put_bits(&s->pb, 1, 1); } - s->run_index= run_index; return 0; } -static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){ - int x,y,i; - const int ring_size= s->avctx->context_model ? 3 : 2; - int_fast16_t sample_buffer[ring_size][w+6], *sample[ring_size]; - s->run_index=0; - - memset(sample_buffer, 0, sizeof(sample_buffer)); - - for(y=0; yavctx->context_model ? 3 : 2; - int_fast16_t sample_buffer[3][ring_size][w+6], *sample[3][ring_size]; - s->run_index=0; - - memset(sample_buffer, 0, sizeof(sample_buffer)); - - for(y=0; y>8)&0xFF; - int r= (v>>16)&0xFF; - - b -= g; - r -= g; - g += (b + r)>>2; - b += 0x100; - r += 0x100; - -// assert(g>=0 && b>=0 && r>=0); -// assert(g<256 && b<512 && r<512); - sample[0][0][x]= g; - sample[1][0][x]= b; - sample[2][0][x]= r; - } - for(p=0; p<3; p++){ - sample[p][0][-1]= sample[p][1][0 ]; - sample[p][1][ w]= sample[p][1][w-1]; - encode_line(s, w, sample[p], FFMIN(p, 1), 9); - } - } -} - -static void write_quant_table(RangeCoder *c, int16_t *quant_table){ - int last=0; +av_cold int ffv1_init_slice_contexts(FFV1Context *f) +{ int i; - uint8_t state[CONTEXT_SIZE]; - memset(state, 128, sizeof(state)); - for(i=1; i<128 ; i++){ - if(quant_table[i] != quant_table[i-1]){ - put_symbol(c, state, i-last-1, 0); - last= i; - } + f->slice_count = f->num_h_slices * f->num_v_slices; + + for (i = 0; i < f->slice_count; i++) { + FFV1Context *fs = av_mallocz(sizeof(*fs)); + int sx = i % f->num_h_slices; + int sy = i / f->num_h_slices; + int sxs = f->avctx->width * sx / f->num_h_slices; + int sxe = f->avctx->width * (sx + 1) / f->num_h_slices; + int sys = f->avctx->height * sy / f->num_v_slices; + int sye = f->avctx->height * (sy + 1) / f->num_v_slices; + f->slice_context[i] = fs; + memcpy(fs, f, sizeof(*fs)); + memset(fs->rc_stat2, 0, sizeof(fs->rc_stat2)); + + fs->slice_width = sxe - sxs; + fs->slice_height = sye - sys; + fs->slice_x = sxs; + fs->slice_y = sys; + + fs->sample_buffer = av_malloc(3 * MAX_PLANES * (fs->width + 6) * + sizeof(*fs->sample_buffer)); + if (!fs->sample_buffer) + return AVERROR(ENOMEM); } - put_symbol(c, state, i-last-1, 0); -} - -static void write_header(FFV1Context *f){ - uint8_t state[CONTEXT_SIZE]; - int i; - RangeCoder * const c= &f->c; - - memset(state, 128, sizeof(state)); - - put_symbol(c, state, f->version, 0); - put_symbol(c, state, f->avctx->coder_type, 0); - put_symbol(c, state, f->colorspace, 0); //YUV cs type - put_rac(c, state, 1); //chroma planes - put_symbol(c, state, f->chroma_h_shift, 0); - put_symbol(c, state, f->chroma_v_shift, 0); - put_rac(c, state, 0); //no transparency plane - - for(i=0; i<5; i++) - write_quant_table(c, f->quant_table[i]); -} -#endif /* CONFIG_FFV1_ENCODER */ - -static av_cold int common_init(AVCodecContext *avctx){ - FFV1Context *s = avctx->priv_data; - int width, height; - - s->avctx= avctx; - s->flags= avctx->flags; - - dsputil_init(&s->dsp, avctx); - - width= s->width= avctx->width; - height= s->height= avctx->height; - - assert(width && height); - return 0; } -#if CONFIG_FFV1_ENCODER -static av_cold int encode_init(AVCodecContext *avctx) +int ffv1_allocate_initial_states(FFV1Context *f) { - FFV1Context *s = avctx->priv_data; int i; - common_init(avctx); - - s->version=0; - s->ac= avctx->coder_type; - - s->plane_count=2; - for(i=0; i<256; i++){ - s->quant_table[0][i]= quant11[i]; - s->quant_table[1][i]= 11*quant11[i]; - if(avctx->context_model==0){ - s->quant_table[2][i]= 11*11*quant11[i]; - s->quant_table[3][i]= - s->quant_table[4][i]=0; - }else{ - s->quant_table[2][i]= 11*11*quant5 [i]; - s->quant_table[3][i]= 5*11*11*quant5 [i]; - s->quant_table[4][i]= 5*5*11*11*quant5 [i]; - } - } - - for(i=0; iplane_count; i++){ - PlaneContext * const p= &s->plane[i]; - - if(avctx->context_model==0){ - p->context_count= (11*11*11+1)/2; - }else{ - p->context_count= (11*11*5*5*5+1)/2; - } - - if(s->ac){ - if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t)); - }else{ - if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState)); - } - } - - avctx->coded_frame= &s->picture; - switch(avctx->pix_fmt){ - case PIX_FMT_YUV444P: - case PIX_FMT_YUV422P: - case PIX_FMT_YUV420P: - case PIX_FMT_YUV411P: - case PIX_FMT_YUV410P: - s->colorspace= 0; - break; - case PIX_FMT_RGB32: - s->colorspace= 1; - break; - default: - av_log(avctx, AV_LOG_ERROR, "format not supported\n"); - return -1; + for (i = 0; i < f->quant_table_count; i++) { + f->initial_states[i] = av_malloc(f->context_count[i] * + sizeof(*f->initial_states[i])); + if (!f->initial_states[i]) + return AVERROR(ENOMEM); + memset(f->initial_states[i], 128, + f->context_count[i] * sizeof(*f->initial_states[i])); } - avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); - - s->picture_number=0; - return 0; } -#endif /* CONFIG_FFV1_ENCODER */ - -static void clear_state(FFV1Context *f){ +void ffv1_clear_slice_state(FFV1Context *f, FFV1Context *fs) +{ int i, j; - for(i=0; iplane_count; i++){ - PlaneContext *p= &f->plane[i]; - - p->interlace_bit_state[0]= 128; - p->interlace_bit_state[1]= 128; - - for(j=0; jcontext_count; j++){ - if(f->ac){ - memset(p->state[j], 128, sizeof(uint8_t)*CONTEXT_SIZE); - }else{ - p->vlc_state[j].drift= 0; - p->vlc_state[j].error_sum= 4; //FFMAX((RANGE + 32)/64, 2); - p->vlc_state[j].bias= 0; - p->vlc_state[j].count= 1; + for (i = 0; i < f->plane_count; i++) { + PlaneContext *p = &fs->plane[i]; + + p->interlace_bit_state[0] = 128; + p->interlace_bit_state[1] = 128; + + if (fs->ac) { + if (f->initial_states[p->quant_table_index]) { + memcpy(p->state, f->initial_states[p->quant_table_index], + CONTEXT_SIZE * p->context_count); + } else + memset(p->state, 128, CONTEXT_SIZE * p->context_count); + } else { + for (j = 0; j < p->context_count; j++) { + p->vlc_state[j].drift = 0; + p->vlc_state[j].error_sum = 4; //FFMAX((RANGE + 32)/64, 2); + p->vlc_state[j].bias = 0; + p->vlc_state[j].count = 1; } } } } -#if CONFIG_FFV1_ENCODER -static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ - FFV1Context *f = avctx->priv_data; - RangeCoder * const c= &f->c; - AVFrame *pict = data; - const int width= f->width; - const int height= f->height; - AVFrame * const p= &f->picture; - int used_count= 0; - uint8_t keystate=128; - - ff_init_range_encoder(c, buf, buf_size); -// ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - - *p = *pict; - p->pict_type= FF_I_TYPE; - - if(avctx->gop_size==0 || f->picture_number % avctx->gop_size == 0){ - put_rac(c, &keystate, 1); - p->key_frame= 1; - write_header(f); - clear_state(f); - }else{ - put_rac(c, &keystate, 0); - p->key_frame= 0; - } - - if(!f->ac){ - used_count += ff_rac_terminate(c); -//printf("pos=%d\n", used_count); - init_put_bits(&f->pb, buf + used_count, buf_size - used_count); - } - - if(f->colorspace==0){ - const int chroma_width = -((-width )>>f->chroma_h_shift); - const int chroma_height= -((-height)>>f->chroma_v_shift); - - encode_plane(f, p->data[0], width, height, p->linesize[0], 0); - - encode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1); - encode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1); - }else{ - encode_rgb_frame(f, (uint32_t*)(p->data[0]), width, height, p->linesize[0]/4); - } - emms_c(); - - f->picture_number++; - - if(f->ac){ - return ff_rac_terminate(c); - }else{ - flush_put_bits(&f->pb); //nicer padding FIXME - return used_count + (put_bits_count(&f->pb)+7)/8; - } -} -#endif /* CONFIG_FFV1_ENCODER */ - -static av_cold int common_end(AVCodecContext *avctx){ +av_cold int ffv1_close(AVCodecContext *avctx) +{ FFV1Context *s = avctx->priv_data; - int i; - - for(i=0; iplane_count; i++){ - PlaneContext *p= &s->plane[i]; - - av_freep(&p->state); - av_freep(&p->vlc_state); - } - - return 0; -} - -static inline void decode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){ - PlaneContext * const p= &s->plane[plane_index]; - RangeCoder * const c= &s->c; - int x; - int run_count=0; - int run_mode=0; - int run_index= s->run_index; - - for(x=0; xac){ - diff= get_symbol(c, p->state[context], 1); - }else{ - if(context == 0 && run_mode==0) run_mode=1; - - if(run_mode){ - if(run_count==0 && run_mode==1){ - if(get_bits1(&s->gb)){ - run_count = 1<gb, ff_log2_run[run_index]); - else run_count=0; - if(run_index) run_index--; - run_mode=2; - } - } - run_count--; - if(run_count < 0){ - run_mode=0; - run_count=0; - diff= get_vlc_symbol(&s->gb, &p->vlc_state[context], bits); - if(diff>=0) diff++; - }else - diff=0; - }else - diff= get_vlc_symbol(&s->gb, &p->vlc_state[context], bits); - -// printf("count:%d index:%d, mode:%d, x:%d y:%d pos:%d\n", run_count, run_index, run_mode, x, y, get_bits_count(&s->gb)); - } - - if(sign) diff= -diff; - - sample[1][x]= (predict(sample[1] + x, sample[0] + x) + diff) & ((1<run_index= run_index; -} - -static void decode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){ - int x, y; - int_fast16_t sample_buffer[2][w+6]; - int_fast16_t *sample[2]; - sample[0]=sample_buffer[0]+3; - sample[1]=sample_buffer[1]+3; - - s->run_index=0; - - memset(sample_buffer, 0, sizeof(sample_buffer)); - - for(y=0; yrun_index=0; - - memset(sample_buffer, 0, sizeof(sample_buffer)); - - for(y=0; y=0 && b>=0 && r>=0); -// assert(g<256 && b<512 && r<512); - - b -= 0x100; - r -= 0x100; - g -= (b + r)>>2; - b += g; - r += g; - - src[x + stride*y]= b + (g<<8) + (r<<16); - } - } -} - -static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale){ - int v; - int i=0; - uint8_t state[CONTEXT_SIZE]; - - memset(state, 128, sizeof(state)); - - for(v=0; i<128 ; v++){ - int len= get_symbol(c, state, 0) + 1; - - if(len + i > 128) return -1; - - while(len--){ - quant_table[i] = scale*v; - i++; -//printf("%2d ",v); -//if(i%16==0) printf("\n"); - } - } - - for(i=1; i<128; i++){ - quant_table[256-i]= -quant_table[i]; - } - quant_table[128]= -quant_table[127]; - - return 2*v - 1; -} - -static int read_header(FFV1Context *f){ - uint8_t state[CONTEXT_SIZE]; - int i, context_count; - RangeCoder * const c= &f->c; + int i, j; - memset(state, 128, sizeof(state)); + if (avctx->codec->decode && s->picture.data[0]) + avctx->release_buffer(avctx, &s->picture); + if (avctx->codec->decode && s->last_picture.data[0]) + avctx->release_buffer(avctx, &s->last_picture); - f->version= get_symbol(c, state, 0); - f->ac= f->avctx->coder_type= get_symbol(c, state, 0); - f->colorspace= get_symbol(c, state, 0); //YUV cs type - get_rac(c, state); //no chroma = false - f->chroma_h_shift= get_symbol(c, state, 0); - f->chroma_v_shift= get_symbol(c, state, 0); - get_rac(c, state); //transparency plane - f->plane_count= 2; + for (j = 0; j < s->slice_count; j++) { + FFV1Context *fs = s->slice_context[j]; + for (i = 0; i < s->plane_count; i++) { + PlaneContext *p = &fs->plane[i]; - if(f->colorspace==0){ - switch(16*f->chroma_h_shift + f->chroma_v_shift){ - case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P; break; - case 0x10: f->avctx->pix_fmt= PIX_FMT_YUV422P; break; - case 0x11: f->avctx->pix_fmt= PIX_FMT_YUV420P; break; - case 0x20: f->avctx->pix_fmt= PIX_FMT_YUV411P; break; - case 0x22: f->avctx->pix_fmt= PIX_FMT_YUV410P; break; - default: - av_log(f->avctx, AV_LOG_ERROR, "format not supported\n"); - return -1; - } - }else if(f->colorspace==1){ - if(f->chroma_h_shift || f->chroma_v_shift){ - av_log(f->avctx, AV_LOG_ERROR, "chroma subsampling not supported in this colorspace\n"); - return -1; + av_freep(&p->state); + av_freep(&p->vlc_state); } - f->avctx->pix_fmt= PIX_FMT_RGB32; - }else{ - av_log(f->avctx, AV_LOG_ERROR, "colorspace not supported\n"); - return -1; + av_freep(&fs->sample_buffer); } -//printf("%d %d %d\n", f->chroma_h_shift, f->chroma_v_shift,f->avctx->pix_fmt); - - context_count=1; - for(i=0; i<5; i++){ - context_count*= read_quant_table(c, f->quant_table[i], context_count); - if(context_count < 0 || context_count > 32768){ - av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n"); - return -1; + av_freep(&avctx->stats_out); + for (j = 0; j < s->quant_table_count; j++) { + av_freep(&s->initial_states[j]); + for (i = 0; i < s->slice_count; i++) { + FFV1Context *sf = s->slice_context[i]; + av_freep(&sf->rc_stat2[j]); } + av_freep(&s->rc_stat2[j]); } - context_count= (context_count+1)/2; - - for(i=0; iplane_count; i++){ - PlaneContext * const p= &f->plane[i]; - p->context_count= context_count; - - if(f->ac){ - if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t)); - }else{ - if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState)); - } - } + for (i = 0; i < s->slice_count; i++) + av_freep(&s->slice_context[i]); return 0; } - -static av_cold int decode_init(AVCodecContext *avctx) -{ -// FFV1Context *s = avctx->priv_data; - - common_init(avctx); - - return 0; -} - -static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){ - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - FFV1Context *f = avctx->priv_data; - RangeCoder * const c= &f->c; - const int width= f->width; - const int height= f->height; - AVFrame * const p= &f->picture; - int bytes_read; - uint8_t keystate= 128; - - AVFrame *picture = data; - - ff_init_range_decoder(c, buf, buf_size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - - - p->pict_type= FF_I_TYPE; //FIXME I vs. P - if(get_rac(c, &keystate)){ - p->key_frame= 1; - if(read_header(f) < 0) - return -1; - clear_state(f); - }else{ - p->key_frame= 0; - } - if(!f->plane[0].state && !f->plane[0].vlc_state) - return -1; - - p->reference= 0; - if(avctx->get_buffer(avctx, p) < 0){ - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } - - if(avctx->debug&FF_DEBUG_PICT_INFO) - av_log(avctx, AV_LOG_ERROR, "keyframe:%d coder:%d\n", p->key_frame, f->ac); - - if(!f->ac){ - bytes_read = c->bytestream - c->bytestream_start - 1; - if(bytes_read ==0) av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); //FIXME -//printf("pos=%d\n", bytes_read); - init_get_bits(&f->gb, buf + bytes_read, buf_size - bytes_read); - } else { - bytes_read = 0; /* avoid warning */ - } - - if(f->colorspace==0){ - const int chroma_width = -((-width )>>f->chroma_h_shift); - const int chroma_height= -((-height)>>f->chroma_v_shift); - decode_plane(f, p->data[0], width, height, p->linesize[0], 0); - - decode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1); - decode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1); - }else{ - decode_rgb_frame(f, (uint32_t*)p->data[0], width, height, p->linesize[0]/4); - } - - emms_c(); - - f->picture_number++; - - *picture= *p; - - avctx->release_buffer(avctx, p); //FIXME - - *data_size = sizeof(AVFrame); - - if(f->ac){ - bytes_read= c->bytestream - c->bytestream_start - 1; - if(bytes_read ==0) av_log(f->avctx, AV_LOG_ERROR, "error at end of frame\n"); - }else{ - bytes_read+= (get_bits_count(&f->gb)+7)/8; - } - - return bytes_read; -} - -AVCodec ffv1_decoder = { - "ffv1", - CODEC_TYPE_VIDEO, - CODEC_ID_FFV1, - sizeof(FFV1Context), - decode_init, - NULL, - common_end, - decode_frame, - CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/, - NULL, - .long_name= NULL_IF_CONFIG_SMALL("FFmpeg codec #1"), -}; - -#if CONFIG_FFV1_ENCODER -AVCodec ffv1_encoder = { - "ffv1", - CODEC_TYPE_VIDEO, - CODEC_ID_FFV1, - sizeof(FFV1Context), - encode_init, - encode_frame, - common_end, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_RGB32, PIX_FMT_NONE}, - .long_name= NULL_IF_CONFIG_SMALL("FFmpeg codec #1"), -}; -#endif