* FF Video Codec 1 (a lossless codec)
*/
+#include "libavutil/avassert.h"
+#include "libavutil/crc.h"
+#include "libavutil/opt.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/timer.h"
#include "avcodec.h"
#include "internal.h"
-#include "get_bits.h"
-#include "put_bits.h"
#include "dsputil.h"
#include "rangecoder.h"
#include "golomb.h"
#include "mathops.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/avassert.h"
-#include "libavutil/crc.h"
-#include "libavutil/opt.h"
-#include "libavutil/imgutils.h"
-#include "libavutil/timer.h"
-
-#ifdef __INTEL_COMPILER
-#undef av_flatten
-#define av_flatten
-#endif
-
-#define MAX_PLANES 4
-#define CONTEXT_SIZE 32
-
-#define MAX_QUANT_TABLES 8
-#define MAX_CONTEXT_INPUTS 5
-
-extern const uint8_t ff_log2_run[41];
-
-static const int8_t 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,
-};
-
-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 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,
-};
-
-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 uint8_t 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,
-};
-
-typedef struct VlcState{
- int16_t drift;
- uint16_t error_sum;
- int8_t bias;
- uint8_t count;
-} VlcState;
-
-typedef struct PlaneContext{
- int16_t quant_table[MAX_CONTEXT_INPUTS][256];
- int quant_table_index;
- int context_count;
- uint8_t (*state)[CONTEXT_SIZE];
- VlcState *vlc_state;
- uint8_t interlace_bit_state[2];
-} PlaneContext;
-
-#define MAX_SLICES 256
-
-typedef struct FFV1Context{
- AVClass *class;
- AVCodecContext *avctx;
- RangeCoder c;
- GetBitContext gb;
- PutBitContext pb;
- uint64_t rc_stat[256][2];
- uint64_t (*rc_stat2[MAX_QUANT_TABLES])[32][2];
- int version;
- int minor_version;
- int width, height;
- int chroma_h_shift, chroma_v_shift;
- int chroma_planes;
- int transparency;
- int flags;
- int picture_number;
- AVFrame picture;
- AVFrame last_picture;
- int plane_count;
- int ac; ///< 1=range coder <-> 0=golomb rice
- int ac_byte_count; ///< number of bytes used for AC coding
- PlaneContext plane[MAX_PLANES];
- int16_t quant_table[MAX_CONTEXT_INPUTS][256];
- int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256];
- int context_count[MAX_QUANT_TABLES];
- uint8_t state_transition[256];
- uint8_t (*initial_states[MAX_QUANT_TABLES])[32];
- int run_index;
- int colorspace;
- int16_t *sample_buffer;
- int gob_count;
- int packed_at_lsb;
- int ec;
- int slice_damaged;
- int key_frame_ok;
-
- int quant_table_count;
-
- DSPContext dsp;
-
- struct FFV1Context *slice_context[MAX_SLICES];
- int slice_count;
- int num_v_slices;
- int num_h_slices;
- int slice_width;
- int slice_height;
- int slice_x;
- int slice_y;
- int bits_per_raw_sample;
-}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<<bits)-1;
- diff-= 1<<(bits-1);
- }
-
- return diff;
-}
-
-static inline int predict(int16_t *src, int16_t *last)
-{
- const int LT= last[-1];
- const int T= last[ 0];
- const int L = src[-1];
-
- return mid_pred(L, L + T - LT, T);
-}
-
-static inline int get_context(PlaneContext *p, int16_t *src,
- int16_t *last, int16_t *last2)
-{
- const int LT= last[-1];
- const int T= last[ 0];
- const int RT= last[ 1];
- const int L = src[-1];
-
- if(p->quant_table[3][127]){
- const int TT= last2[0];
- const int LL= src[-2];
- return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF]
- +p->quant_table[3][(LL-L) & 0xFF] + p->quant_table[4][(TT-T) & 0xFF];
- }else
- return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF];
-}
-
-static void find_best_state(uint8_t best_state[256][256], const uint8_t one_state[256]){
- int i,j,k,m;
- double l2tab[256];
-
- for(i=1; i<256; i++)
- l2tab[i]= log2(i/256.0);
-
- for(i=0; i<256; i++){
- double best_len[256];
- double p= i/256.0;
-
- for(j=0; j<256; j++)
- best_len[j]= 1<<30;
-
- for(j=FFMAX(i-10,1); j<FFMIN(i+11,256); j++){
- double occ[256]={0};
- double len=0;
- occ[j]=1.0;
- for(k=0; k<256; k++){
- double newocc[256]={0};
- for(m=0; m<256; m++){
- if(occ[m]){
- len -=occ[m]*( p *l2tab[ m]
- + (1-p)*l2tab[256-m]);
- }
- }
- if(len < best_len[k]){
- best_len[k]= len;
- best_state[i][k]= j;
- }
- for(m=0; m<256; m++){
- if(occ[m]){
- newocc[ one_state[ m]] += occ[m]* p ;
- newocc[256-one_state[256-m]] += occ[m]*(1-p);
- }
- }
- memcpy(occ, newocc, sizeof(occ));
- }
- }
- }
-}
-
-static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed, uint64_t rc_stat[256][2], uint64_t rc_stat2[32][2]){
- int i;
-
-#define put_rac(C,S,B) \
-do{\
- if(rc_stat){\
- rc_stat[*(S)][B]++;\
- rc_stat2[(S)-state][B]++;\
- }\
- put_rac(C,S,B);\
-}while(0)
-
- if(v){
- const int a= FFABS(v);
- const int e= av_log2(a);
- put_rac(c, state+0, 0);
- if(e<=9){
- for(i=0; i<e; i++){
- put_rac(c, state+1+i, 1); //1..10
- }
- put_rac(c, state+1+i, 0);
-
- for(i=e-1; 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{
- for(i=0; i<e; i++){
- put_rac(c, state+1+FFMIN(i,9), 1); //1..10
- }
- put_rac(c, state+1+9, 0);
-
- for(i=e-1; i>=0; i--){
- put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31
- }
-
- if(is_signed)
- put_rac(c, state+11 + 10, v < 0); //11..21
- }
- }else{
- put_rac(c, state+0, 1);
- }
-#undef put_rac
-}
+#include "ffv1.h"
-static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
- put_symbol_inline(c, state, v, is_signed, NULL, NULL);
-}
-
-static inline av_flatten int get_symbol_inline(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 + FFMIN(e,9))){ //1..10
- e++;
- }
-
- a= 1;
- for(i=e-1; i>=0; i--){
- a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31
- }
-
- e= -(is_signed && get_rac(c, state+11 + FFMIN(e, 10))); //11..21
- return (a^e)-e;
- }
-}
-
-static av_noinline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){
- return get_symbol_inline(c, state, is_signed);
-}
-
-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;
- v = fold(v - state->bias, bits);
-
- i= state->count;
- k=0;
- while(i < state->error_sum){ //FIXME optimize
- k++;
- i += i;
- }
-
- av_assert2(k<=13);
-
-#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
-
- av_dlog(NULL, "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);
-}
-
-static inline int get_vlc_symbol(GetBitContext *gb, VlcState * const state, int bits){
- int k, i, v, ret;
-
- i= state->count;
- k=0;
- while(i < state->error_sum){ //FIXME optimize
- k++;
- i += i;
- }
-
- assert(k<=8);
-
- v= get_sr_golomb(gb, k, 12, bits);
- av_dlog(NULL, "v:%d bias:%d error:%d drift:%d count:%d k:%d",
- v, state->bias, state->error_sum, state->drift, state->count, k);
-
-#if 0 // JPEG LS
- if(k==0 && 2*state->drift <= - state->count) v ^= (-1);
-#else
- v ^= ((2*state->drift + state->count)>>31);
-#endif
-
- ret= fold(v + state->bias, bits);
-
- update_vlc_state(state, v);
-
- return ret;
-}
-
-#if CONFIG_FFV1_ENCODER
-static av_always_inline int encode_line(FFV1Context *s, int w,
- int16_t *sample[3],
- int plane_index, int bits)
+av_cold int ffv1_common_init(AVCodecContext *avctx)
{
- 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;
- }
- }
-
- for(x=0; x<w; x++){
- int diff, context;
-
- context= get_context(p, sample[0]+x, sample[1]+x, sample[2]+x);
- diff= sample[0][x] - predict(sample[0]+x, sample[1]+x);
-
- if(context < 0){
- context = -context;
- diff= -diff;
- }
-
- diff= fold(diff, bits);
-
- if(s->ac){
- if(s->flags & CODEC_FLAG_PASS1){
- put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat, s->rc_stat2[p->quant_table_index][context]);
- }else{
- put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
- }
- }else{
- if(context == 0) run_mode=1;
-
- if(run_mode){
-
- if(diff){
- while(run_count >= 1<<ff_log2_run[run_index]){
- run_count -= 1<<ff_log2_run[run_index];
- run_index++;
- put_bits(&s->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++;
- }
- }
-
- av_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
- run_count, run_index, run_mode, x,
- (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<<ff_log2_run[run_index]){
- run_count -= 1<<ff_log2_run[run_index];
- run_index++;
- put_bits(&s->pb, 1, 1);
- }
-
- 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;
- int16_t *sample[3];
- s->run_index=0;
-
- memset(s->sample_buffer, 0, ring_size*(w+6)*sizeof(*s->sample_buffer));
-
- for(y=0; y<h; y++){
- for(i=0; i<ring_size; i++)
- sample[i]= s->sample_buffer + (w+6)*((h+i-y)%ring_size) + 3;
-
- sample[0][-1]= sample[1][0 ];
- sample[1][ w]= sample[1][w-1];
-//{START_TIMER
- if(s->bits_per_raw_sample<=8){
- for(x=0; x<w; x++){
- sample[0][x]= src[x + stride*y];
- }
- encode_line(s, w, sample, plane_index, 8);
- }else{
- if(s->packed_at_lsb){
- for(x=0; x<w; x++){
- sample[0][x]= ((uint16_t*)(src + stride*y))[x];
- }
- }else{
- for(x=0; x<w; x++){
- sample[0][x]= ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample);
- }
- }
- encode_line(s, w, sample, plane_index, s->bits_per_raw_sample);
- }
-//STOP_TIMER("encode line")}
- }
-}
-
-static void encode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3]){
- int x, y, p, i;
- const int ring_size= s->avctx->context_model ? 3 : 2;
- int16_t *sample[4][3];
- int lbd= s->avctx->bits_per_raw_sample <= 8;
- int bits= s->avctx->bits_per_raw_sample > 0 ? s->avctx->bits_per_raw_sample : 8;
- int offset= 1 << bits;
- s->run_index=0;
-
- memset(s->sample_buffer, 0, ring_size*4*(w+6)*sizeof(*s->sample_buffer));
-
- for(y=0; y<h; y++){
- for(i=0; i<ring_size; i++)
- for(p=0; p<4; p++)
- sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
-
- for(x=0; x<w; x++){
- int b,g,r,av_uninit(a);
- if(lbd){
- unsigned v= *((uint32_t*)(src[0] + x*4 + stride[0]*y));
- b= v&0xFF;
- g= (v>>8)&0xFF;
- r= (v>>16)&0xFF;
- a= v>>24;
- }else{
- b= *((uint16_t*)(src[0] + x*2 + stride[0]*y));
- g= *((uint16_t*)(src[1] + x*2 + stride[1]*y));
- r= *((uint16_t*)(src[2] + x*2 + stride[2]*y));
- }
-
- b -= g;
- r -= g;
- g += (b + r)>>2;
- b += offset;
- r += offset;
-
- sample[0][0][x]= g;
- sample[1][0][x]= b;
- sample[2][0][x]= r;
- sample[3][0][x]= a;
- }
- for(p=0; p<3 + s->transparency; p++){
- sample[p][0][-1]= sample[p][1][0 ];
- sample[p][1][ w]= sample[p][1][w-1];
- if (lbd)
- encode_line(s, w, sample[p], (p+1)/2, 9);
- else
- encode_line(s, w, sample[p], (p+1)/2, bits+1);
- }
- }
-}
-
-static void write_quant_table(RangeCoder *c, int16_t *quant_table){
- int last=0;
- 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;
- }
- }
- put_symbol(c, state, i-last-1, 0);
-}
-
-static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){
- int i;
- for(i=0; i<5; i++)
- write_quant_table(c, quant_table[i]);
-}
-
-static void write_header(FFV1Context *f){
- uint8_t state[CONTEXT_SIZE];
- int i, j;
- RangeCoder * const c= &f->slice_context[0]->c;
-
- memset(state, 128, sizeof(state));
-
- if(f->version < 2){
- put_symbol(c, state, f->version, 0);
- put_symbol(c, state, f->ac, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
- }
- }
- put_symbol(c, state, f->colorspace, 0); //YUV cs type
- if(f->version>0)
- put_symbol(c, state, f->bits_per_raw_sample, 0);
- put_rac(c, state, f->chroma_planes);
- put_symbol(c, state, f->chroma_h_shift, 0);
- put_symbol(c, state, f->chroma_v_shift, 0);
- put_rac(c, state, f->transparency);
-
- write_quant_tables(c, f->quant_table);
- }else if(f->version < 3){
- put_symbol(c, state, f->slice_count, 0);
- for(i=0; i<f->slice_count; i++){
- FFV1Context *fs= f->slice_context[i];
- put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
- put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
- put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
- put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
- for(j=0; j<f->plane_count; j++){
- put_symbol(c, state, f->plane[j].quant_table_index, 0);
- av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
- }
- }
- }
-}
-#endif /* CONFIG_FFV1_ENCODER */
-
-static av_cold int common_init(AVCodecContext *avctx){
FFV1Context *s = avctx->priv_data;
- if(!avctx->width || !avctx->height)
+ if (!avctx->width || !avctx->height)
return AVERROR_INVALIDDATA;
- s->avctx= avctx;
- s->flags= avctx->flags;
+ s->avctx = avctx;
+ s->flags = avctx->flags;
avcodec_get_frame_defaults(&s->picture);
ff_dsputil_init(&s->dsp, avctx);
- s->width = avctx->width;
- s->height= avctx->height;
-
- //defaults
- s->num_h_slices=1;
- s->num_v_slices=1;
+ s->width = avctx->width;
+ s->height = avctx->height;
+ // defaults
+ s->num_h_slices = 1;
+ s->num_v_slices = 1;
return 0;
}
-static int init_slice_state(FFV1Context *f, FFV1Context *fs){
+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];
+ 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);
- }
+ 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);
}
+ }
- 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 (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];
}
+ }
return 0;
}
-static int init_slices_state(FFV1Context *f){
- int i;
- for(i=0; i<f->slice_count; i++){
- FFV1Context *fs= f->slice_context[i];
- if(init_slice_state(f, fs) < 0)
- return -1;
+int ffv1_init_slices_state(FFV1Context *f)
+{
+ int i, ret;
+ for (i = 0; i < f->slice_count; i++) {
+ FFV1Context *fs = f->slice_context[i];
+ if ((ret = ffv1_init_slice_state(f, fs)) < 0)
+ return AVERROR(ENOMEM);
}
return 0;
}
-static av_cold int init_slice_contexts(FFV1Context *f){
+av_cold int ffv1_init_slice_contexts(FFV1Context *f)
+{
int 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;
+ 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->slice_width = sxe - sxs;
+ fs->slice_height = sye - sys;
+ fs->slice_x = sxs;
+ fs->slice_y = sys;
- fs->sample_buffer = av_malloc(3*4 * (fs->width+6) * sizeof(*fs->sample_buffer));
+ fs->sample_buffer = av_malloc(3 * MAX_PLANES * (fs->width + 6) *
+ sizeof(*fs->sample_buffer));
if (!fs->sample_buffer)
return AVERROR(ENOMEM);
}
return 0;
}
-static int allocate_initial_states(FFV1Context *f){
+int ffv1_allocate_initial_states(FFV1Context *f)
+{
int i;
- 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])
+ 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]));
+ memset(f->initial_states[i], 128,
+ f->context_count[i] * sizeof(*f->initial_states[i]));
}
return 0;
}
-#if CONFIG_FFV1_ENCODER
-static int write_extra_header(FFV1Context *f){
- RangeCoder * const c= &f->c;
- uint8_t state[CONTEXT_SIZE];
- int i, j, k;
- uint8_t state2[32][CONTEXT_SIZE];
- unsigned v;
-
- memset(state2, 128, sizeof(state2));
- memset(state, 128, sizeof(state));
-
- f->avctx->extradata= av_malloc(f->avctx->extradata_size= 10000 + (11*11*5*5*5+11*11*11)*32);
- ff_init_range_encoder(c, f->avctx->extradata, f->avctx->extradata_size);
- ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
-
- put_symbol(c, state, f->version, 0);
- if(f->version > 2) {
- if(f->version == 3)
- f->minor_version = 2;
- put_symbol(c, state, f->minor_version, 0);
- }
- put_symbol(c, state, f->ac, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
- }
- }
- put_symbol(c, state, f->colorspace, 0); //YUV cs type
- put_symbol(c, state, f->bits_per_raw_sample, 0);
- put_rac(c, state, f->chroma_planes);
- put_symbol(c, state, f->chroma_h_shift, 0);
- put_symbol(c, state, f->chroma_v_shift, 0);
- put_rac(c, state, f->transparency);
- put_symbol(c, state, f->num_h_slices-1, 0);
- put_symbol(c, state, f->num_v_slices-1, 0);
-
- put_symbol(c, state, f->quant_table_count, 0);
- for(i=0; i<f->quant_table_count; i++)
- write_quant_tables(c, f->quant_tables[i]);
-
- for(i=0; i<f->quant_table_count; i++){
- for(j=0; j<f->context_count[i]*CONTEXT_SIZE; j++)
- if(f->initial_states[i] && f->initial_states[i][0][j] != 128)
- break;
- if(j<f->context_count[i]*CONTEXT_SIZE){
- put_rac(c, state, 1);
- for(j=0; j<f->context_count[i]; j++){
- for(k=0; k<CONTEXT_SIZE; k++){
- int pred= j ? f->initial_states[i][j-1][k] : 128;
- put_symbol(c, state2[k], (int8_t)(f->initial_states[i][j][k]-pred), 1);
- }
- }
- }else{
- put_rac(c, state, 0);
- }
- }
-
- if(f->version > 2){
- put_symbol(c, state, f->ec, 0);
- }
-
- f->avctx->extradata_size= ff_rac_terminate(c);
- v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size);
- AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v);
- f->avctx->extradata_size += 4;
-
- return 0;
-}
-
-static int sort_stt(FFV1Context *s, uint8_t stt[256]){
- int i,i2,changed,print=0;
-
- do{
- changed=0;
- for(i=12; i<244; i++){
- for(i2=i+1; i2<245 && i2<i+4; i2++){
-#define COST(old, new) \
- s->rc_stat[old][0]*-log2((256-(new))/256.0)\
- +s->rc_stat[old][1]*-log2( (new) /256.0)
-
-#define COST2(old, new) \
- COST(old, new)\
- +COST(256-(old), 256-(new))
-
- double size0= COST2(i, i ) + COST2(i2, i2);
- double sizeX= COST2(i, i2) + COST2(i2, i );
- if(sizeX < size0 && i!=128 && i2!=128){
- int j;
- FFSWAP(int, stt[ i], stt[ i2]);
- FFSWAP(int, s->rc_stat[i ][0],s->rc_stat[ i2][0]);
- FFSWAP(int, s->rc_stat[i ][1],s->rc_stat[ i2][1]);
- if(i != 256-i2){
- FFSWAP(int, stt[256-i], stt[256-i2]);
- FFSWAP(int, s->rc_stat[256-i][0],s->rc_stat[256-i2][0]);
- FFSWAP(int, s->rc_stat[256-i][1],s->rc_stat[256-i2][1]);
- }
- for(j=1; j<256; j++){
- if (stt[j] == i ) stt[j] = i2;
- else if(stt[j] == i2) stt[j] = i ;
- if(i != 256-i2){
- if (stt[256-j] == 256-i ) stt[256-j] = 256-i2;
- else if(stt[256-j] == 256-i2) stt[256-j] = 256-i ;
- }
- }
- print=changed=1;
- }
- }
- }
- }while(changed);
- return print;
-}
-
-static av_cold int encode_init(AVCodecContext *avctx)
+void ffv1_clear_slice_state(FFV1Context *f, FFV1Context *fs)
{
- FFV1Context *s = avctx->priv_data;
- int i, j, k, m;
-
- common_init(avctx);
-
- s->version=0;
-
- if((avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) || avctx->slices>1)
- s->version = FFMAX(s->version, 2);
-
- if(avctx->level == 3){
- s->version = 3;
- }
-
- if(s->ec < 0){
- s->ec = (s->version >= 3);
- }
-
- if(s->version >= 2 && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
- av_log(avctx, AV_LOG_ERROR, "Version 2 needed for requested features but version 2 is experimental and not enabled\n");
- return AVERROR_INVALIDDATA;
- }
-
- s->ac= avctx->coder_type > 0 ? 2 : 0;
-
- s->plane_count=3;
- switch(avctx->pix_fmt){
- case PIX_FMT_YUV444P9:
- case PIX_FMT_YUV422P9:
- case PIX_FMT_YUV420P9:
- if (!avctx->bits_per_raw_sample)
- s->bits_per_raw_sample = 9;
- case PIX_FMT_YUV444P10:
- case PIX_FMT_YUV420P10:
- case PIX_FMT_YUV422P10:
- s->packed_at_lsb = 1;
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 10;
- case PIX_FMT_GRAY16:
- case PIX_FMT_YUV444P16:
- case PIX_FMT_YUV422P16:
- case PIX_FMT_YUV420P16:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
- s->bits_per_raw_sample = 16;
- } else if (!s->bits_per_raw_sample){
- s->bits_per_raw_sample = avctx->bits_per_raw_sample;
- }
- if(s->bits_per_raw_sample <=8){
- av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n");
- return AVERROR_INVALIDDATA;
- }
- if(!s->ac && avctx->coder_type == -1) {
- av_log(avctx, AV_LOG_INFO, "bits_per_raw_sample > 8, forcing coder 1\n");
- s->ac = 2;
- }
- if(!s->ac){
- av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
- return AVERROR_INVALIDDATA;
- }
- s->version= FFMAX(s->version, 1);
- case PIX_FMT_GRAY8:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV440P:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV411P:
- case PIX_FMT_YUV410P:
- s->chroma_planes= av_pix_fmt_descriptors[avctx->pix_fmt].nb_components < 3 ? 0 : 1;
- s->colorspace= 0;
- break;
- case PIX_FMT_YUVA444P:
- case PIX_FMT_YUVA422P:
- case PIX_FMT_YUVA420P:
- s->chroma_planes= 1;
- s->colorspace= 0;
- s->transparency= 1;
- break;
- case PIX_FMT_RGB32:
- s->colorspace= 1;
- s->transparency= 1;
- break;
- case PIX_FMT_0RGB32:
- s->colorspace= 1;
- break;
- case PIX_FMT_GBRP9:
- if (!avctx->bits_per_raw_sample)
- s->bits_per_raw_sample = 9;
- case PIX_FMT_GBRP10:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 10;
- case PIX_FMT_GBRP12:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 12;
- case PIX_FMT_GBRP14:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 14;
- else if (!s->bits_per_raw_sample)
- s->bits_per_raw_sample = avctx->bits_per_raw_sample;
- s->colorspace= 1;
- s->chroma_planes= 1;
- s->version= FFMAX(s->version, 1);
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "format not supported\n");
- return AVERROR_INVALIDDATA;
- }
- if (s->transparency) {
- av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n");
- }
- if (avctx->context_model > 1U) {
- av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model);
- return AVERROR(EINVAL);
- }
-
- if(s->ac>1)
- for(i=1; i<256; i++)
- s->state_transition[i]=ver2_state[i];
-
- for(i=0; i<256; i++){
- s->quant_table_count=2;
- if(s->bits_per_raw_sample <=8){
- s->quant_tables[0][0][i]= quant11[i];
- s->quant_tables[0][1][i]= 11*quant11[i];
- s->quant_tables[0][2][i]= 11*11*quant11[i];
- s->quant_tables[1][0][i]= quant11[i];
- s->quant_tables[1][1][i]= 11*quant11[i];
- s->quant_tables[1][2][i]= 11*11*quant5 [i];
- s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
- s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
- }else{
- s->quant_tables[0][0][i]= quant9_10bit[i];
- s->quant_tables[0][1][i]= 11*quant9_10bit[i];
- s->quant_tables[0][2][i]= 11*11*quant9_10bit[i];
- s->quant_tables[1][0][i]= quant9_10bit[i];
- s->quant_tables[1][1][i]= 11*quant9_10bit[i];
- s->quant_tables[1][2][i]= 11*11*quant5_10bit[i];
- s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i];
- s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i];
- }
- }
- s->context_count[0]= (11*11*11+1)/2;
- s->context_count[1]= (11*11*5*5*5+1)/2;
- memcpy(s->quant_table, s->quant_tables[avctx->context_model], sizeof(s->quant_table));
-
- for(i=0; i<s->plane_count; i++){
- PlaneContext * const p= &s->plane[i];
-
- memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
- p->quant_table_index= avctx->context_model;
- p->context_count= s->context_count[p->quant_table_index];
- }
-
- if(allocate_initial_states(s) < 0)
- return AVERROR(ENOMEM);
-
- avctx->coded_frame= &s->picture;
- if(!s->transparency)
- s->plane_count= 2;
- avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
-
- s->picture_number=0;
-
- if(avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)){
- for(i=0; i<s->quant_table_count; i++){
- s->rc_stat2[i]= av_mallocz(s->context_count[i]*sizeof(*s->rc_stat2[i]));
- if(!s->rc_stat2[i])
- return AVERROR(ENOMEM);
- }
- }
- if(avctx->stats_in){
- char *p= avctx->stats_in;
- uint8_t best_state[256][256];
- int gob_count=0;
- char *next;
-
- av_assert0(s->version>=2);
-
- for(;;){
- for(j=0; j<256; j++){
- for(i=0; i<2; i++){
- s->rc_stat[j][i]= strtol(p, &next, 0);
- if(next==p){
- av_log(avctx, AV_LOG_ERROR, "2Pass file invalid at %d %d [%s]\n", j,i,p);
- return -1;
- }
- p=next;
- }
- }
- for(i=0; i<s->quant_table_count; i++){
- for(j=0; j<s->context_count[i]; j++){
- for(k=0; k<32; k++){
- for(m=0; m<2; m++){
- s->rc_stat2[i][j][k][m]= strtol(p, &next, 0);
- if(next==p){
- av_log(avctx, AV_LOG_ERROR, "2Pass file invalid at %d %d %d %d [%s]\n", i,j,k,m,p);
- return AVERROR_INVALIDDATA;
- }
- p=next;
- }
- }
- }
- }
- gob_count= strtol(p, &next, 0);
- if(next==p || gob_count <0){
- av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n");
- return AVERROR_INVALIDDATA;
- }
- p=next;
- while(*p=='\n' || *p==' ') p++;
- if(p[0]==0) break;
- }
- sort_stt(s, s->state_transition);
-
- find_best_state(best_state, s->state_transition);
-
- for(i=0; i<s->quant_table_count; i++){
- for(j=0; j<s->context_count[i]; j++){
- for(k=0; k<32; k++){
- double p= 128;
- if(s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]){
- p=256.0*s->rc_stat2[i][j][k][1] / (s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]);
- }
- s->initial_states[i][j][k]= best_state[av_clip(round(p), 1, 255)][av_clip((s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1])/gob_count, 0, 255)];
- }
- }
- }
- }
-
- if(s->version>1){
- for(s->num_v_slices=2; s->num_v_slices<9; s->num_v_slices++){
- for(s->num_h_slices=s->num_v_slices; s->num_h_slices<2*s->num_v_slices; s->num_h_slices++){
- if(avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64 || !avctx->slices)
- goto slices_ok;
- }
- }
- av_log(avctx, AV_LOG_ERROR, "Unsupported number %d of slices requested, please specify a supported number with -slices (ex:4,6,9,12,16, ...)\n", avctx->slices);
- return -1;
- slices_ok:
- write_extra_header(s);
- }
-
- if(init_slice_contexts(s) < 0)
- return -1;
- if(init_slices_state(s) < 0)
- return -1;
-
-#define STATS_OUT_SIZE 1024*1024*6
- if(avctx->flags & CODEC_FLAG_PASS1){
- avctx->stats_out= av_mallocz(STATS_OUT_SIZE);
- for(i=0; i<s->quant_table_count; i++){
- for(j=0; j<s->slice_count; j++){
- FFV1Context *sf= s->slice_context[j];
- av_assert0(!sf->rc_stat2[i]);
- sf->rc_stat2[i]= av_mallocz(s->context_count[i]*sizeof(*sf->rc_stat2[i]));
- if(!sf->rc_stat2[i])
- return AVERROR(ENOMEM);
- }
- }
- }
-
- return 0;
-}
-#endif /* CONFIG_FFV1_ENCODER */
-
-
-static void clear_slice_state(FFV1Context *f, FFV1Context *fs){
int i, j;
- for(i=0; i<f->plane_count; i++){
- PlaneContext *p= &fs->plane[i];
+ 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;
+ 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 (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 void encode_slice_header(FFV1Context *f, FFV1Context *fs){
- RangeCoder *c = &fs->c;
- uint8_t state[CONTEXT_SIZE];
- int j;
- memset(state, 128, sizeof(state));
-
- put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
- put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
- put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
- put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
- for(j=0; j<f->plane_count; j++){
- put_symbol(c, state, f->plane[j].quant_table_index, 0);
- av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
}
- if(!f->picture.interlaced_frame) put_symbol(c, state, 3, 0);
- else put_symbol(c, state, 1 + !f->picture.top_field_first, 0);
- put_symbol(c, state, f->picture.sample_aspect_ratio.num, 0);
- put_symbol(c, state, f->picture.sample_aspect_ratio.den, 0);
}
-static int encode_slice(AVCodecContext *c, void *arg){
- FFV1Context *fs= *(void**)arg;
- FFV1Context *f= fs->avctx->priv_data;
- int width = fs->slice_width;
- int height= fs->slice_height;
- int x= fs->slice_x;
- int y= fs->slice_y;
- AVFrame * const p= &f->picture;
- const int ps= (f->bits_per_raw_sample>8)+1;
-
- if(p->key_frame)
- clear_slice_state(f, fs);
- if(f->version > 2){
- encode_slice_header(f, fs);
- }
- if(!fs->ac){
- if(f->version > 2)
- put_rac(&fs->c, (int[]){129}, 0);
- fs->ac_byte_count = f->version > 2 || (!x&&!y) ? ff_rac_terminate(&fs->c) : 0;
- init_put_bits(&fs->pb, fs->c.bytestream_start + fs->ac_byte_count, fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count);
- }
-
- if(f->colorspace==0){
- const int chroma_width = -((-width )>>f->chroma_h_shift);
- const int chroma_height= -((-height)>>f->chroma_v_shift);
- const int cx= x>>f->chroma_h_shift;
- const int cy= y>>f->chroma_v_shift;
-
- encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
-
- if (f->chroma_planes){
- encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
- encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
- }
- if (fs->transparency)
- encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
- }else{
- uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0],
- p->data[1] + ps*x + y*p->linesize[1],
- p->data[2] + ps*x + y*p->linesize[2]};
- encode_rgb_frame(fs, planes, width, height, p->linesize);
- }
- emms_c();
-
- return 0;
-}
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *pict, int *got_packet)
+av_cold int ffv1_close(AVCodecContext *avctx)
{
- FFV1Context *f = avctx->priv_data;
- RangeCoder * const c= &f->slice_context[0]->c;
- AVFrame * const p= &f->picture;
- int used_count= 0;
- uint8_t keystate=128;
- uint8_t *buf_p;
- int i, ret;
-
- if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*((8*2+1+1)*4)/8
- + FF_MIN_BUFFER_SIZE)) < 0)
- return ret;
-
- ff_init_range_encoder(c, pkt->data, pkt->size);
- ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
-
- *p = *pict;
- p->pict_type= AV_PICTURE_TYPE_I;
-
- if(avctx->gop_size==0 || f->picture_number % avctx->gop_size == 0){
- put_rac(c, &keystate, 1);
- p->key_frame= 1;
- f->gob_count++;
- write_header(f);
- }else{
- put_rac(c, &keystate, 0);
- p->key_frame= 0;
- }
-
- if (f->ac>1){
- int i;
- for(i=1; i<256; i++){
- c->one_state[i]= f->state_transition[i];
- c->zero_state[256-i]= 256-c->one_state[i];
- }
- }
-
- for(i=1; i<f->slice_count; i++){
- FFV1Context *fs= f->slice_context[i];
- uint8_t *start = pkt->data + (pkt->size-used_count)*(int64_t)i/f->slice_count;
- int len = pkt->size/f->slice_count;
- ff_init_range_encoder(&fs->c, start, len);
- }
- avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*));
-
- buf_p = pkt->data;
- for(i=0; i<f->slice_count; i++){
- FFV1Context *fs= f->slice_context[i];
- int bytes;
-
- if(fs->ac){
- uint8_t state=129;
- put_rac(&fs->c, &state, 0);
- bytes= ff_rac_terminate(&fs->c);
- }else{
- flush_put_bits(&fs->pb); //nicer padding FIXME
- bytes= fs->ac_byte_count + (put_bits_count(&fs->pb)+7)/8;
- }
- if(i>0 || f->version>2){
- av_assert0(bytes < pkt->size/f->slice_count);
- memmove(buf_p, fs->c.bytestream_start, bytes);
- av_assert0(bytes < (1<<24));
- AV_WB24(buf_p+bytes, bytes);
- bytes+=3;
- }
- if(f->ec){
- unsigned v;
- buf_p[bytes++] = 0;
- v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes);
- AV_WL32(buf_p + bytes, v); bytes += 4;
- }
- buf_p += bytes;
- }
-
- if((avctx->flags&CODEC_FLAG_PASS1) && (f->picture_number&31)==0){
- int j, k, m;
- char *p= avctx->stats_out;
- char *end= p + STATS_OUT_SIZE;
-
- memset(f->rc_stat, 0, sizeof(f->rc_stat));
- for(i=0; i<f->quant_table_count; i++)
- memset(f->rc_stat2[i], 0, f->context_count[i]*sizeof(*f->rc_stat2[i]));
-
- for(j=0; j<f->slice_count; j++){
- FFV1Context *fs= f->slice_context[j];
- for(i=0; i<256; i++){
- f->rc_stat[i][0] += fs->rc_stat[i][0];
- f->rc_stat[i][1] += fs->rc_stat[i][1];
- }
- for(i=0; i<f->quant_table_count; i++){
- for(k=0; k<f->context_count[i]; k++){
- for(m=0; m<32; m++){
- f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0];
- f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1];
- }
- }
- }
- }
-
- for(j=0; j<256; j++){
- snprintf(p, end-p, "%"PRIu64" %"PRIu64" ", f->rc_stat[j][0], f->rc_stat[j][1]);
- p+= strlen(p);
- }
- snprintf(p, end-p, "\n");
-
- for(i=0; i<f->quant_table_count; i++){
- for(j=0; j<f->context_count[i]; j++){
- for(m=0; m<32; m++){
- snprintf(p, end-p, "%"PRIu64" %"PRIu64" ", f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
- p+= strlen(p);
- }
- }
- }
- snprintf(p, end-p, "%d\n", f->gob_count);
- } else if(avctx->flags&CODEC_FLAG_PASS1)
- avctx->stats_out[0] = '\0';
-
- f->picture_number++;
- pkt->size = buf_p - pkt->data;
- pkt->flags |= AV_PKT_FLAG_KEY*p->key_frame;
- *got_packet = 1;
-
- return 0;
-}
-#endif /* CONFIG_FFV1_ENCODER */
-
-static av_cold int common_end(AVCodecContext *avctx){
FFV1Context *s = avctx->priv_data;
int i, j;
if (avctx->codec->decode && s->last_picture.data[0])
avctx->release_buffer(avctx, &s->last_picture);
- 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];
+ 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];
av_freep(&p->state);
av_freep(&p->vlc_state);
}
av_freep(&avctx->stats_out);
- for(j=0; j<s->quant_table_count; j++){
+ 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];
+ 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]);
}
- for(i=0; i<s->slice_count; i++){
+ for (i = 0; i < s->slice_count; i++)
av_freep(&s->slice_context[i]);
- }
-
- return 0;
-}
-
-static av_always_inline void decode_line(FFV1Context *s, int w,
- int16_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; x<w; x++){
- int diff, context, sign;
-
- context= get_context(p, sample[1] + x, sample[0] + x, sample[1] + x);
- if(context < 0){
- context= -context;
- sign=1;
- }else
- sign=0;
-
- av_assert2(context < p->context_count);
-
- if(s->ac){
- diff= get_symbol_inline(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<<ff_log2_run[run_index];
- if(x + run_count <= w) run_index++;
- }else{
- if(ff_log2_run[run_index]) run_count = get_bits(&s->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);
-
- av_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
- run_count, run_index, run_mode, x, get_bits_count(&s->gb));
- }
-
- if(sign) diff= -diff;
-
- sample[1][x]= (predict(sample[1] + x, sample[0] + x) + diff) & ((1<<bits)-1);
- }
- s->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;
- int16_t *sample[2];
- sample[0]=s->sample_buffer +3;
- sample[1]=s->sample_buffer+w+6+3;
-
- s->run_index=0;
-
- memset(s->sample_buffer, 0, 2*(w+6)*sizeof(*s->sample_buffer));
-
- for(y=0; y<h; y++){
- int16_t *temp = sample[0]; //FIXME try a normal buffer
-
- sample[0]= sample[1];
- sample[1]= temp;
-
- sample[1][-1]= sample[0][0 ];
- sample[0][ w]= sample[0][w-1];
-
-//{START_TIMER
- if(s->avctx->bits_per_raw_sample <= 8){
- decode_line(s, w, sample, plane_index, 8);
- for(x=0; x<w; x++){
- src[x + stride*y]= sample[1][x];
- }
- }else{
- decode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample);
- if(s->packed_at_lsb){
- for(x=0; x<w; x++){
- ((uint16_t*)(src + stride*y))[x]= sample[1][x];
- }
- }else{
- for(x=0; x<w; x++){
- ((uint16_t*)(src + stride*y))[x]= sample[1][x] << (16 - s->avctx->bits_per_raw_sample);
- }
- }
- }
-//STOP_TIMER("decode-line")}
- }
-}
-
-static void decode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3]){
- int x, y, p;
- int16_t *sample[4][2];
- int lbd= s->avctx->bits_per_raw_sample <= 8;
- int bits= s->avctx->bits_per_raw_sample > 0 ? s->avctx->bits_per_raw_sample : 8;
- int offset= 1 << bits;
- for(x=0; x<4; x++){
- sample[x][0] = s->sample_buffer + x*2 *(w+6) + 3;
- sample[x][1] = s->sample_buffer + (x*2+1)*(w+6) + 3;
- }
-
- s->run_index=0;
-
- memset(s->sample_buffer, 0, 8*(w+6)*sizeof(*s->sample_buffer));
-
- for(y=0; y<h; y++){
- for(p=0; p<3 + s->transparency; p++){
- int16_t *temp = sample[p][0]; //FIXME try a normal buffer
-
- sample[p][0]= sample[p][1];
- sample[p][1]= temp;
-
- sample[p][1][-1]= sample[p][0][0 ];
- sample[p][0][ w]= sample[p][0][w-1];
- if (lbd)
- decode_line(s, w, sample[p], (p+1)/2, 9);
- else
- decode_line(s, w, sample[p], (p+1)/2, bits+1);
- }
- for(x=0; x<w; x++){
- int g= sample[0][1][x];
- int b= sample[1][1][x];
- int r= sample[2][1][x];
- int a= sample[3][1][x];
-
- b -= offset;
- r -= offset;
- g -= (b + r)>>2;
- b += g;
- r += g;
-
- if(lbd)
- *((uint32_t*)(src[0] + x*4 + stride[0]*y))= b + (g<<8) + (r<<16) + (a<<24);
- else{
- *((uint16_t*)(src[0] + x*2 + stride[0]*y)) = b;
- *((uint16_t*)(src[1] + x*2 + stride[1]*y)) = g;
- *((uint16_t*)(src[2] + x*2 + stride[2]*y)) = r;
- }
- }
- }
-}
-
-static int decode_slice_header(FFV1Context *f, FFV1Context *fs){
- RangeCoder *c = &fs->c;
- uint8_t state[CONTEXT_SIZE];
- unsigned ps, i, context_count;
- memset(state, 128, sizeof(state));
-
- av_assert0(f->version > 2);
-
- fs->slice_x = get_symbol(c, state, 0) *f->width ;
- fs->slice_y = get_symbol(c, state, 0) *f->height;
- fs->slice_width =(get_symbol(c, state, 0)+1)*f->width + fs->slice_x;
- fs->slice_height=(get_symbol(c, state, 0)+1)*f->height + fs->slice_y;
-
- fs->slice_x /= f->num_h_slices;
- fs->slice_y /= f->num_v_slices;
- fs->slice_width = fs->slice_width /f->num_h_slices - fs->slice_x;
- fs->slice_height = fs->slice_height/f->num_v_slices - fs->slice_y;
- if((unsigned)fs->slice_width > f->width || (unsigned)fs->slice_height > f->height)
- return -1;
- if( (unsigned)fs->slice_x + (uint64_t)fs->slice_width > f->width
- || (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height)
- return -1;
-
- for(i=0; i<f->plane_count; i++){
- PlaneContext * const p= &fs->plane[i];
- int idx=get_symbol(c, state, 0);
- if(idx > (unsigned)f->quant_table_count){
- av_log(f->avctx, AV_LOG_ERROR, "quant_table_index out of range\n");
- return -1;
- }
- p->quant_table_index= idx;
- memcpy(p->quant_table, f->quant_tables[idx], sizeof(p->quant_table));
- context_count= f->context_count[idx];
-
- if(p->context_count < context_count){
- av_freep(&p->state);
- av_freep(&p->vlc_state);
- }
- p->context_count= context_count;
- }
-
- ps = get_symbol(c, state, 0);
- if(ps==1){
- f->picture.interlaced_frame = 1;
- f->picture.top_field_first = 1;
- } else if(ps==2){
- f->picture.interlaced_frame = 1;
- f->picture.top_field_first = 0;
- } else if(ps==3){
- f->picture.interlaced_frame = 0;
- }
- f->picture.sample_aspect_ratio.num = get_symbol(c, state, 0);
- f->picture.sample_aspect_ratio.den = get_symbol(c, state, 0);
return 0;
}
-
-static int decode_slice(AVCodecContext *c, void *arg){
- FFV1Context *fs= *(void**)arg;
- FFV1Context *f= fs->avctx->priv_data;
- int width, height, x, y;
- const int ps= (c->bits_per_raw_sample>8)+1;
- AVFrame * const p= &f->picture;
-
- if(f->version > 2){
- if(init_slice_state(f, fs) < 0)
- return AVERROR(ENOMEM);
- if(decode_slice_header(f, fs) < 0) {
- fs->slice_damaged = 1;
- return AVERROR_INVALIDDATA;
- }
- }
- if(init_slice_state(f, fs) < 0)
- return AVERROR(ENOMEM);
- if(f->picture.key_frame)
- clear_slice_state(f, fs);
- width = fs->slice_width;
- height= fs->slice_height;
- x= fs->slice_x;
- y= fs->slice_y;
-
- if(!fs->ac){
- if (f->version == 3 && f->minor_version > 1 || f->version > 3)
- get_rac(&fs->c, (int[]){129});
- fs->ac_byte_count = f->version > 2 || (!x&&!y) ? fs->c.bytestream - fs->c.bytestream_start - 1 : 0;
- init_get_bits(&fs->gb,
- fs->c.bytestream_start + fs->ac_byte_count,
- (fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count) * 8);
- }
-
- av_assert1(width && height);
- if(f->colorspace==0){
- const int chroma_width = -((-width )>>f->chroma_h_shift);
- const int chroma_height= -((-height)>>f->chroma_v_shift);
- const int cx= x>>f->chroma_h_shift;
- const int cy= y>>f->chroma_v_shift;
- decode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
-
- if (f->chroma_planes){
- decode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
- decode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
- }
- if (fs->transparency)
- decode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
- }else{
- uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0],
- p->data[1] + ps*x + y*p->linesize[1],
- p->data[2] + ps*x + y*p->linesize[2]};
- decode_rgb_frame(fs, planes, width, height, p->linesize);
- }
- if(fs->ac && f->version > 2) {
- int v;
- get_rac(&fs->c, (int[]){129});
- v = fs->c.bytestream_end - fs->c.bytestream - 2 - 5*f->ec;
- if(v) {
- av_log(f->avctx, AV_LOG_ERROR, "bytestream end mismatching by %d\n", v);
- fs->slice_damaged = 1;
- }
- }
-
- emms_c();
-
- return 0;
-}
-
-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++){
- unsigned len= get_symbol(c, state, 0) + 1;
-
- if(len > 128 - i) return -1;
-
- while(len--){
- quant_table[i] = scale*v;
- i++;
- }
- }
-
- 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_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){
- int i;
- int context_count=1;
-
- for(i=0; i<5; i++){
- context_count*= read_quant_table(c, quant_table[i], context_count);
- if(context_count > 32768U){
- return -1;
- }
- }
- return (context_count+1)/2;
-}
-
-static int read_extra_header(FFV1Context *f){
- RangeCoder * const c= &f->c;
- uint8_t state[CONTEXT_SIZE];
- int i, j, k;
- uint8_t state2[32][CONTEXT_SIZE];
-
- memset(state2, 128, sizeof(state2));
- memset(state, 128, sizeof(state));
-
- ff_init_range_decoder(c, f->avctx->extradata, f->avctx->extradata_size);
- ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
-
- f->version= get_symbol(c, state, 0);
- if(f->version > 2) {
- c->bytestream_end -= 4;
- f->minor_version= get_symbol(c, state, 0);
- }
- f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i];
- }
- }
- f->colorspace= get_symbol(c, state, 0); //YUV cs type
- f->avctx->bits_per_raw_sample= get_symbol(c, state, 0);
- f->chroma_planes= get_rac(c, state);
- f->chroma_h_shift= get_symbol(c, state, 0);
- f->chroma_v_shift= get_symbol(c, state, 0);
- f->transparency= get_rac(c, state);
- f->plane_count= 2 + f->transparency;
- f->num_h_slices= 1 + get_symbol(c, state, 0);
- f->num_v_slices= 1 + get_symbol(c, state, 0);
- if(f->num_h_slices > (unsigned)f->width || f->num_v_slices > (unsigned)f->height){
- av_log(f->avctx, AV_LOG_ERROR, "too many slices\n");
- return -1;
- }
-
- f->quant_table_count= get_symbol(c, state, 0);
- if(f->quant_table_count > (unsigned)MAX_QUANT_TABLES)
- return -1;
- for(i=0; i<f->quant_table_count; i++){
- if((f->context_count[i]= read_quant_tables(c, f->quant_tables[i])) < 0){
- av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
- return -1;
- }
- }
-
- if(allocate_initial_states(f) < 0)
- return AVERROR(ENOMEM);
-
- for(i=0; i<f->quant_table_count; i++){
- if(get_rac(c, state)){
- for(j=0; j<f->context_count[i]; j++){
- for(k=0; k<CONTEXT_SIZE; k++){
- int pred= j ? f->initial_states[i][j-1][k] : 128;
- f->initial_states[i][j][k]= (pred+get_symbol(c, state2[k], 1))&0xFF;
- }
- }
- }
- }
-
- if(f->version > 2){
- f->ec = get_symbol(c, state, 0);
- }
-
- if(f->version > 2){
- unsigned v;
- v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size);
- if(v){
- av_log(f->avctx, AV_LOG_ERROR, "CRC mismatch %X!\n", v);
- return AVERROR_INVALIDDATA;
- }
- }
-
- return 0;
-}
-
-static int read_header(FFV1Context *f){
- uint8_t state[CONTEXT_SIZE];
- int i, j, context_count = -1; //-1 to avoid warning
- RangeCoder * const c= &f->slice_context[0]->c;
-
- memset(state, 128, sizeof(state));
-
- if(f->version < 2){
- unsigned v= get_symbol(c, state, 0);
- if(v >= 2){
- av_log(f->avctx, AV_LOG_ERROR, "invalid version %d in ver01 header\n", v);
- return AVERROR_INVALIDDATA;
- }
- f->version = v;
- f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i];
- }
- }
- f->colorspace= get_symbol(c, state, 0); //YUV cs type
- if(f->version>0)
- f->avctx->bits_per_raw_sample= get_symbol(c, state, 0);
- f->chroma_planes= get_rac(c, state);
- f->chroma_h_shift= get_symbol(c, state, 0);
- f->chroma_v_shift= get_symbol(c, state, 0);
- f->transparency= get_rac(c, state);
- f->plane_count= 2 + f->transparency;
- }
-
- if(f->colorspace==0){
- if(!f->transparency && !f->chroma_planes){
- if (f->avctx->bits_per_raw_sample<=8)
- f->avctx->pix_fmt= PIX_FMT_GRAY8;
- else
- f->avctx->pix_fmt= PIX_FMT_GRAY16;
- }else if(f->avctx->bits_per_raw_sample<=8 && !f->transparency){
- switch(16*f->chroma_h_shift + f->chroma_v_shift){
- case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P; break;
- case 0x01: f->avctx->pix_fmt= PIX_FMT_YUV440P; 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->avctx->bits_per_raw_sample<=8 && f->transparency){
- switch(16*f->chroma_h_shift + f->chroma_v_shift){
- case 0x00: f->avctx->pix_fmt= PIX_FMT_YUVA444P; break;
- case 0x10: f->avctx->pix_fmt= PIX_FMT_YUVA422P; break;
- case 0x11: f->avctx->pix_fmt= PIX_FMT_YUVA420P; break;
- default:
- av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
- return -1;
- }
- }else if(f->avctx->bits_per_raw_sample==9) {
- f->packed_at_lsb=1;
- switch(16*f->chroma_h_shift + f->chroma_v_shift){
- case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P9; break;
- case 0x10: f->avctx->pix_fmt= PIX_FMT_YUV422P9; break;
- case 0x11: f->avctx->pix_fmt= PIX_FMT_YUV420P9; break;
- default:
- av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
- return -1;
- }
- }else if(f->avctx->bits_per_raw_sample==10) {
- f->packed_at_lsb=1;
- switch(16*f->chroma_h_shift + f->chroma_v_shift){
- case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P10; break;
- case 0x10: f->avctx->pix_fmt= PIX_FMT_YUV422P10; break;
- case 0x11: f->avctx->pix_fmt= PIX_FMT_YUV420P10; break;
- default:
- av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
- return -1;
- }
- }else {
- switch(16*f->chroma_h_shift + f->chroma_v_shift){
- case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P16; break;
- case 0x10: f->avctx->pix_fmt= PIX_FMT_YUV422P16; break;
- case 0x11: f->avctx->pix_fmt= PIX_FMT_YUV420P16; 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;
- }
- if(f->avctx->bits_per_raw_sample==9)
- f->avctx->pix_fmt= PIX_FMT_GBRP9;
- else if(f->avctx->bits_per_raw_sample==10)
- f->avctx->pix_fmt= PIX_FMT_GBRP10;
- else if(f->avctx->bits_per_raw_sample==12)
- f->avctx->pix_fmt= PIX_FMT_GBRP12;
- else if(f->avctx->bits_per_raw_sample==14)
- f->avctx->pix_fmt= PIX_FMT_GBRP14;
- else
- if(f->transparency) f->avctx->pix_fmt= PIX_FMT_RGB32;
- else f->avctx->pix_fmt= PIX_FMT_0RGB32;
- }else{
- av_log(f->avctx, AV_LOG_ERROR, "colorspace not supported\n");
- return -1;
- }
-
- av_dlog(f->avctx, "%d %d %d\n",
- f->chroma_h_shift, f->chroma_v_shift, f->avctx->pix_fmt);
- if(f->version < 2){
- context_count= read_quant_tables(c, f->quant_table);
- if(context_count < 0){
- av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
- return -1;
- }
- }else if(f->version < 3){
- f->slice_count= get_symbol(c, state, 0);
- }else{
- const uint8_t *p= c->bytestream_end;
- for(f->slice_count = 0; f->slice_count < MAX_SLICES && 3 < p - c->bytestream_start; f->slice_count++){
- int trailer = 3 + 5*!!f->ec;
- int size = AV_RB24(p-trailer);
- if(size + trailer > p - c->bytestream_start)
- break;
- p -= size + trailer;
- }
- }
- if(f->slice_count > (unsigned)MAX_SLICES || f->slice_count <= 0){
- av_log(f->avctx, AV_LOG_ERROR, "slice count %d is invalid\n", f->slice_count);
- return -1;
- }
-
- for(j=0; j<f->slice_count; j++){
- FFV1Context *fs= f->slice_context[j];
- fs->ac= f->ac;
- fs->packed_at_lsb= f->packed_at_lsb;
-
- fs->slice_damaged = 0;
-
- if(f->version == 2){
- fs->slice_x = get_symbol(c, state, 0) *f->width ;
- fs->slice_y = get_symbol(c, state, 0) *f->height;
- fs->slice_width =(get_symbol(c, state, 0)+1)*f->width + fs->slice_x;
- fs->slice_height=(get_symbol(c, state, 0)+1)*f->height + fs->slice_y;
-
- fs->slice_x /= f->num_h_slices;
- fs->slice_y /= f->num_v_slices;
- fs->slice_width = fs->slice_width /f->num_h_slices - fs->slice_x;
- fs->slice_height = fs->slice_height/f->num_v_slices - fs->slice_y;
- if((unsigned)fs->slice_width > f->width || (unsigned)fs->slice_height > f->height)
- return -1;
- if( (unsigned)fs->slice_x + (uint64_t)fs->slice_width > f->width
- || (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height)
- return -1;
- }
-
- for(i=0; i<f->plane_count; i++){
- PlaneContext * const p= &fs->plane[i];
-
- if(f->version == 2){
- int idx=get_symbol(c, state, 0);
- if(idx > (unsigned)f->quant_table_count){
- av_log(f->avctx, AV_LOG_ERROR, "quant_table_index out of range\n");
- return -1;
- }
- p->quant_table_index= idx;
- memcpy(p->quant_table, f->quant_tables[idx], sizeof(p->quant_table));
- context_count= f->context_count[idx];
- }else{
- memcpy(p->quant_table, f->quant_table, sizeof(p->quant_table));
- }
-
- if(f->version <= 2){
- av_assert0(context_count>=0);
- if(p->context_count < context_count){
- av_freep(&p->state);
- av_freep(&p->vlc_state);
- }
- p->context_count= context_count;
- }
- }
- }
- return 0;
-}
-
-static av_cold int decode_init(AVCodecContext *avctx)
-{
- FFV1Context *f = avctx->priv_data;
-
- common_init(avctx);
-
- if(avctx->extradata && read_extra_header(f) < 0)
- return -1;
-
- if(init_slice_contexts(f) < 0)
- return -1;
-
- 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->slice_context[0]->c;
- AVFrame * const p= &f->picture;
- int i;
- uint8_t keystate= 128;
- const uint8_t *buf_p;
-
- AVFrame *picture = data;
-
- /* release previously stored data */
- if (p->data[0])
- avctx->release_buffer(avctx, p);
-
- ff_init_range_decoder(c, buf, buf_size);
- ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
-
-
- p->pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P
- if(get_rac(c, &keystate)){
- p->key_frame= 1;
- f->key_frame_ok = 0;
- if(read_header(f) < 0)
- return -1;
- f->key_frame_ok = 1;
- }else{
- if (!f->key_frame_ok) {
- av_log(avctx, AV_LOG_ERROR, "Cant decode non keyframe without valid keyframe\n");
- return AVERROR_INVALIDDATA;
- }
- p->key_frame= 0;
- }
-
- p->reference= 3; //for error concealment
- 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_DEBUG, "ver:%d keyframe:%d coder:%d ec:%d slices:%d bps:%d\n",
- f->version, p->key_frame, f->ac, f->ec, f->slice_count, f->avctx->bits_per_raw_sample);
-
- buf_p= buf + buf_size;
- for(i=f->slice_count-1; i>=0; i--){
- FFV1Context *fs= f->slice_context[i];
- int trailer = 3 + 5*!!f->ec;
- int v;
-
- if(i || f->version>2) v = AV_RB24(buf_p-trailer)+trailer;
- else v = buf_p - c->bytestream_start;
- if(buf_p - c->bytestream_start < v){
- av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n");
- return -1;
- }
- buf_p -= v;
-
- if(f->ec){
- unsigned crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, v);
- if(crc){
- int64_t ts = avpkt->pts != AV_NOPTS_VALUE ? avpkt->pts : avpkt->dts;
- av_log(f->avctx, AV_LOG_ERROR, "CRC mismatch %X!", crc);
- if(ts != AV_NOPTS_VALUE && avctx->pkt_timebase.num) {
- av_log(f->avctx, AV_LOG_ERROR, "at %f seconds\n",ts*av_q2d(avctx->pkt_timebase));
- } else if(ts != AV_NOPTS_VALUE) {
- av_log(f->avctx, AV_LOG_ERROR, "at %"PRId64"\n", ts);
- } else {
- av_log(f->avctx, AV_LOG_ERROR, "\n");
- }
- fs->slice_damaged = 1;
- }
- }
-
- if(i){
- ff_init_range_decoder(&fs->c, buf_p, v);
- }else
- fs->c.bytestream_end = (uint8_t *)(buf_p + v);
- }
-
- avctx->execute(avctx, decode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*));
-
- for(i=f->slice_count-1; i>=0; i--){
- FFV1Context *fs= f->slice_context[i];
- int j;
- if(fs->slice_damaged && f->last_picture.data[0]){
- uint8_t *dst[4], *src[4];
- for(j=0; j<4; j++){
- int sh = (j==1 || j==2) ? f->chroma_h_shift : 0;
- int sv = (j==1 || j==2) ? f->chroma_v_shift : 0;
- dst[j] = f->picture .data[j] + f->picture .linesize[j]*
- (fs->slice_y>>sv) + (fs->slice_x>>sh);
- src[j] = f->last_picture.data[j] + f->last_picture.linesize[j]*
- (fs->slice_y>>sv) + (fs->slice_x>>sh);
- }
- av_image_copy(dst, f->picture.linesize, (const uint8_t **)src, f->last_picture.linesize,
- avctx->pix_fmt, fs->slice_width, fs->slice_height);
- }
- }
-
- f->picture_number++;
-
- *picture= *p;
- *data_size = sizeof(AVFrame);
-
- FFSWAP(AVFrame, f->picture, f->last_picture);
-
- return buf_size;
-}
-
-AVCodec ff_ffv1_decoder = {
- .name = "ffv1",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_FFV1,
- .priv_data_size = sizeof(FFV1Context),
- .init = decode_init,
- .close = common_end,
- .decode = decode_frame,
- .capabilities = CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/ |
- CODEC_CAP_SLICE_THREADS,
- .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
-};
-
-#if CONFIG_FFV1_ENCODER
-
-#define OFFSET(x) offsetof(FFV1Context, x)
-#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
-static const AVOption options[] = {
- { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
-{NULL}
-};
-
-static const AVClass class = {
- .class_name = "ffv1 encoder",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-static const AVCodecDefault ffv1_defaults[] = {
- { "coder", "-1" },
- { NULL },
-};
-
-AVCodec ff_ffv1_encoder = {
- .name = "ffv1",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_FFV1,
- .priv_data_size = sizeof(FFV1Context),
- .init = encode_init,
- .encode2 = encode_frame,
- .close = common_end,
- .capabilities = CODEC_CAP_SLICE_THREADS,
- .defaults = ffv1_defaults,
- .pix_fmts = (const enum PixelFormat[]){
- PIX_FMT_YUV420P, PIX_FMT_YUVA420P, PIX_FMT_YUVA422P, PIX_FMT_YUV444P,
- PIX_FMT_YUVA444P, PIX_FMT_YUV440P, PIX_FMT_YUV422P, PIX_FMT_YUV411P,
- PIX_FMT_YUV410P, PIX_FMT_0RGB32, PIX_FMT_RGB32, PIX_FMT_YUV420P16,
- PIX_FMT_YUV422P16, PIX_FMT_YUV444P16, PIX_FMT_YUV444P9, PIX_FMT_YUV422P9,
- PIX_FMT_YUV420P9, PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, PIX_FMT_YUV444P10,
- PIX_FMT_GRAY16, PIX_FMT_GRAY8, PIX_FMT_GBRP9, PIX_FMT_GBRP10,
- PIX_FMT_GBRP12, PIX_FMT_GBRP14,
- PIX_FMT_NONE
- },
- .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
- .priv_class = &class,
-};
-#endif
projects / ffmpeg / blobdiff