| 5e20f836 |
/*
* FFV1 codec for libavcodec
* |
| ff0c6282 |
* Copyright (c) 2003-2012 Michael Niedermayer <michaelni@gmx.at> |
| 5e20f836 |
* |
| b78e7197 |
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
| 5e20f836 |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
| b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
| 5e20f836 |
* |
| b78e7197 |
* FFmpeg is distributed in the hope that it will be useful, |
| 5e20f836 |
* 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 |
| b78e7197 |
* License along with FFmpeg; if not, write to the Free Software |
| 5509bffa |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 5e20f836 |
*/ |
| 115329f1 |
|
| 5e20f836 |
/** |
| ba87f080 |
* @file |
| 0e22d688 |
* FF Video Codec 1 (a lossless codec) |
| 5e20f836 |
*/
#include "avcodec.h" |
| ed45636e |
#include "internal.h" |
| 9106a698 |
#include "get_bits.h" |
| b2755007 |
#include "put_bits.h" |
| 5e20f836 |
#include "dsputil.h" |
| 880eae9c |
#include "rangecoder.h" |
| 11e659c2 |
#include "golomb.h" |
| 199436b9 |
#include "mathops.h" |
| 83e2e931 |
#include "libavutil/pixdesc.h" |
| e2b2f845 |
#include "libavutil/avassert.h" |
| d7a4c43f |
#include "libavutil/crc.h" |
| 123dd934 |
#include "libavutil/opt.h" |
| 094845aa |
#include "libavutil/imgutils.h" |
| 15acfa21 |
#include "libavutil/timer.h" |
| 5e20f836 |
|
| fa1b2c8e |
#ifdef __INTEL_COMPILER
#undef av_flatten
#define av_flatten
#endif
|
| 5e20f836 |
#define MAX_PLANES 4 |
| c2f1b2cb |
#define CONTEXT_SIZE 32
|
| c5ac275b |
#define MAX_QUANT_TABLES 8 |
| c868524b |
#define MAX_CONTEXT_INPUTS 5 |
| c5ac275b |
|
| 676d380f |
extern const uint8_t ff_log2_run[41]; |
| b3bf98aa |
|
| 68f8d33b |
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,
};
|
| 11e659c2 |
static const int8_t quant5[256]={
0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 5e20f836 |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 11e659c2 |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-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,
}; |
| 6728aaf6 |
|
| 68f8d33b |
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,
};
|
| 11e659c2 |
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,
}; |
| 5e20f836 |
|
| 00bbc093 |
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,
};
|
| 11e659c2 |
typedef struct VlcState{
int16_t drift;
uint16_t error_sum;
int8_t bias;
uint8_t count;
} VlcState;
|
| 5e20f836 |
typedef struct PlaneContext{ |
| c868524b |
int16_t quant_table[MAX_CONTEXT_INPUTS][256]; |
| e1f51b88 |
int quant_table_index; |
| 5e20f836 |
int context_count; |
| c2f1b2cb |
uint8_t (*state)[CONTEXT_SIZE]; |
| 11e659c2 |
VlcState *vlc_state; |
| 5e20f836 |
uint8_t interlace_bit_state[2];
} PlaneContext;
|
| e2b2f845 |
#define MAX_SLICES 256
|
| 5e20f836 |
typedef struct FFV1Context{ |
| fd6eba42 |
AVClass *class; |
| 5e20f836 |
AVCodecContext *avctx; |
| 880eae9c |
RangeCoder c; |
| 11e659c2 |
GetBitContext gb;
PutBitContext pb; |
| bc29ae4a |
uint64_t rc_stat[256][2]; |
| 672e7e39 |
uint64_t (*rc_stat2[MAX_QUANT_TABLES])[32][2]; |
| 5e20f836 |
int version; |
| 56123595 |
int minor_version; |
| 5e20f836 |
int width, height;
int chroma_h_shift, chroma_v_shift; |
| 6833fe43 |
int chroma_planes; |
| f7b160e8 |
int transparency; |
| 5e20f836 |
int flags;
int picture_number;
AVFrame picture; |
| 371d37fc |
AVFrame last_picture; |
| 5e20f836 |
int plane_count; |
| 2fee538a |
int ac; ///< 1=range coder <-> 0=golomb rice |
| e37419a8 |
int ac_byte_count; ///< number of bytes used for AC coding |
| 5e20f836 |
PlaneContext plane[MAX_PLANES]; |
| c868524b |
int16_t quant_table[MAX_CONTEXT_INPUTS][256];
int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256]; |
| c5ac275b |
int context_count[MAX_QUANT_TABLES]; |
| 00bbc093 |
uint8_t state_transition[256]; |
| 99a5e935 |
uint8_t (*initial_states[MAX_QUANT_TABLES])[32]; |
| 2cbb7820 |
int run_index;
int colorspace; |
| 0a6b1a9f |
int16_t *sample_buffer; |
| 0ae0faa7 |
int gob_count; |
| b0e1d0d9 |
int packed_at_lsb; |
| 044f7275 |
int ec; |
| 094845aa |
int slice_damaged; |
| abec6549 |
int key_frame_ok; |
| 115329f1 |
|
| c5ac275b |
int quant_table_count;
|
| 115329f1 |
DSPContext dsp; |
| e2b2f845 |
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; |
| 2396206f |
int bits_per_raw_sample; |
| 5e20f836 |
}FFV1Context;
|
| 849f1035 |
static av_always_inline int fold(int diff, int bits){ |
| 2cbb7820 |
if(bits==8)
diff= (int8_t)diff;
else{
diff+= 1<<(bits-1);
diff&=(1<<bits)-1;
diff-= 1<<(bits-1);
}
return diff;
}
|
| 0a6b1a9f |
static inline int predict(int16_t *src, int16_t *last)
{ |
| 11e659c2 |
const int LT= last[-1];
const int T= last[ 0];
const int L = src[-1]; |
| 5e20f836 |
|
| 25bd2349 |
return mid_pred(L, L + T - LT, T); |
| 5e20f836 |
}
|
| 0a6b1a9f |
static inline int get_context(PlaneContext *p, int16_t *src,
int16_t *last, int16_t *last2)
{ |
| 11e659c2 |
const int LT= last[-1];
const int T= last[ 0];
const int RT= last[ 1];
const int L = src[-1];
|
| e42393d1 |
if(p->quant_table[3][127]){ |
| 11e659c2 |
const int TT= last2[0];
const int LL= src[-2]; |
| e42393d1 |
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]; |
| 11e659c2 |
}else |
| e42393d1 |
return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF]; |
| 5e20f836 |
} |
| c2f1b2cb |
|
| 73cbf868 |
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));
}
}
}
}
|
| 672e7e39 |
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]){ |
| 5e20f836 |
int i;
|
| bc29ae4a |
#define put_rac(C,S,B) \
do{\ |
| 349d7287 |
if(rc_stat){\ |
| bc29ae4a |
rc_stat[*(S)][B]++;\ |
| 672e7e39 |
rc_stat2[(S)-state][B]++;\ |
| 349d7287 |
}\ |
| bc29ae4a |
put_rac(C,S,B);\
}while(0)
|
| 5e20f836 |
if(v){ |
| c26abfa5 |
const int a= FFABS(v); |
| 5e20f836 |
const int e= av_log2(a); |
| 880eae9c |
put_rac(c, state+0, 0); |
| 68f8d33b |
if(e<=9){ |
| f83c5773 |
for(i=0; i<e; i++){
put_rac(c, state+1+i, 1); //1..10
}
put_rac(c, state+1+i, 0); |
| 085565f7 |
|
| f83c5773 |
for(i=e-1; i>=0; i--){
put_rac(c, state+22+i, (a>>i)&1); //22..31
} |
| d34a0746 |
|
| f83c5773 |
if(is_signed)
put_rac(c, state+11 + e, v < 0); //11..21 |
| 68f8d33b |
}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
} |
| 5e20f836 |
}else{ |
| 880eae9c |
put_rac(c, state+0, 1); |
| 5e20f836 |
} |
| bc29ae4a |
#undef put_rac |
| 5e20f836 |
}
|
| 3dde147f |
static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){ |
| 672e7e39 |
put_symbol_inline(c, state, v, is_signed, NULL, NULL); |
| 217d34e3 |
}
|
| 68f8d33b |
static inline av_flatten int get_symbol_inline(RangeCoder *c, uint8_t *state, int is_signed){ |
| 880eae9c |
if(get_rac(c, state+0)) |
| 5e20f836 |
return 0;
else{ |
| d34a0746 |
int i, e, a;
e= 0; |
| 68f8d33b |
while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10 |
| d34a0746 |
e++;
} |
| 5e20f836 |
|
| d34a0746 |
a= 1;
for(i=e-1; i>=0; i--){ |
| 68f8d33b |
a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31 |
| 085565f7 |
} |
| d34a0746 |
|
| 68f8d33b |
e= -(is_signed && get_rac(c, state+11 + FFMIN(e, 10))); //11..21 |
| 3788e661 |
return (a^e)-e; |
| 5e20f836 |
}
} |
| 11e659c2 |
|
| 3dde147f |
static av_noinline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ |
| 217d34e3 |
return get_symbol_inline(c, state, is_signed);
}
|
| 11e659c2 |
static inline void update_vlc_state(VlcState * const state, const int v){
int drift= state->drift;
int count= state->count; |
| c26abfa5 |
state->error_sum += FFABS(v); |
| 11e659c2 |
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--; |
| 115329f1 |
|
| 11e659c2 |
drift += count;
if(drift <= -count)
drift= -count + 1;
}else if(drift > 0){
if(state->bias < 127) state->bias++; |
| 115329f1 |
|
| 11e659c2 |
drift -= count; |
| 115329f1 |
if(drift > 0) |
| 11e659c2 |
drift= 0;
}
state->drift= drift;
state->count= count;
}
|
| 2cbb7820 |
static inline void put_vlc_symbol(PutBitContext *pb, VlcState * const state, int v, int bits){ |
| 11e659c2 |
int i, k, code;
//printf("final: %d ", v); |
| 2cbb7820 |
v = fold(v - state->bias, bits);
|
| 11e659c2 |
i= state->count;
k=0;
while(i < state->error_sum){ //FIXME optimize
k++;
i += i;
} |
| d9e6a6c6 |
assert(k<=8);
|
| 11e659c2 |
#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 |
| 115329f1 |
|
| 11e659c2 |
//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); |
| a6c01275 |
set_sr_golomb(pb, code, k, 12, bits); |
| 11e659c2 |
update_vlc_state(state, v);
}
|
| 2cbb7820 |
static inline int get_vlc_symbol(GetBitContext *gb, VlcState * const state, int bits){ |
| 11e659c2 |
int k, i, v, ret;
i= state->count;
k=0;
while(i < state->error_sum){ //FIXME optimize
k++;
i += i;
} |
| d9e6a6c6 |
assert(k<=8);
|
| a6c01275 |
v= get_sr_golomb(gb, k, 12, bits); |
| 11e659c2 |
//printf("v:%d bias:%d error:%d drift:%d count:%d k:%d", v, state->bias, state->error_sum, state->drift, state->count, k); |
| d9e6a6c6 |
|
| 11e659c2 |
#if 0 // JPEG LS
if(k==0 && 2*state->drift <= - state->count) v ^= (-1);
#else
v ^= ((2*state->drift + state->count)>>31); |
| 5e20f836 |
#endif
|
| 2cbb7820 |
ret= fold(v + state->bias, bits); |
| 115329f1 |
|
| 11e659c2 |
update_vlc_state(state, v);
//printf("final: %d\n", ret);
return ret;
}
|
| b250f9c6 |
#if CONFIG_FFV1_ENCODER |
| 0a6b1a9f |
static av_always_inline int encode_line(FFV1Context *s, int w, |
| 2b8374e9 |
int16_t *sample[3], |
| 0a6b1a9f |
int plane_index, int bits)
{ |
| 2cbb7820 |
PlaneContext * const p= &s->plane[plane_index]; |
| 880eae9c |
RangeCoder * const c= &s->c; |
| 2cbb7820 |
int x;
int run_index= s->run_index;
int run_count=0;
int run_mode=0;
|
| 0ecca7a4 |
if(s->ac){ |
| 55ad69e8 |
if(c->bytestream_end - c->bytestream < w*35){ |
| 0ecca7a4 |
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;
}
}
|
| 2cbb7820 |
for(x=0; x<w; x++){
int diff, context; |
| 115329f1 |
|
| e42393d1 |
context= get_context(p, sample[0]+x, sample[1]+x, sample[2]+x); |
| c172913a |
diff= sample[0][x] - predict(sample[0]+x, sample[1]+x); |
| 11e659c2 |
|
| 2cbb7820 |
if(context < 0){
context = -context;
diff= -diff;
}
diff= fold(diff, bits); |
| 115329f1 |
|
| 2cbb7820 |
if(s->ac){ |
| 349d7287 |
if(s->flags & CODEC_FLAG_PASS1){ |
| 672e7e39 |
put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat, s->rc_stat2[p->quant_table_index][context]); |
| 349d7287 |
}else{ |
| 672e7e39 |
put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL); |
| 349d7287 |
} |
| 2cbb7820 |
}else{
if(context == 0) run_mode=1; |
| 115329f1 |
|
| 2cbb7820 |
if(run_mode){
if(diff){ |
| b3bf98aa |
while(run_count >= 1<<ff_log2_run[run_index]){
run_count -= 1<<ff_log2_run[run_index]; |
| 2cbb7820 |
run_index++;
put_bits(&s->pb, 1, 1);
} |
| 115329f1 |
|
| b3bf98aa |
put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count); |
| 2cbb7820 |
if(run_index) run_index--;
run_count=0;
run_mode=0;
if(diff>0) diff--;
}else{
run_count++;
}
} |
| 115329f1 |
|
| fe455f33 |
// 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)); |
| 2cbb7820 |
if(run_mode == 0)
put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
}
}
if(run_mode){ |
| b3bf98aa |
while(run_count >= 1<<ff_log2_run[run_index]){
run_count -= 1<<ff_log2_run[run_index]; |
| 2cbb7820 |
run_index++;
put_bits(&s->pb, 1, 1);
}
if(run_count)
put_bits(&s->pb, 1, 1);
}
s->run_index= run_index; |
| 115329f1 |
|
| 0ecca7a4 |
return 0; |
| 2cbb7820 |
} |
| 11e659c2 |
|
| 5e20f836 |
static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){ |
| c172913a |
int x,y,i; |
| fa2522d7 |
const int ring_size= s->avctx->context_model ? 3 : 2; |
| 0a6b1a9f |
int16_t *sample[3]; |
| 2cbb7820 |
s->run_index=0; |
| 115329f1 |
|
| cbabccc3 |
memset(s->sample_buffer, 0, ring_size*(w+6)*sizeof(*s->sample_buffer)); |
| 115329f1 |
|
| 5e20f836 |
for(y=0; y<h; y++){ |
| c172913a |
for(i=0; i<ring_size; i++) |
| cbabccc3 |
sample[i]= s->sample_buffer + (w+6)*((h+i-y)%ring_size) + 3; |
| 115329f1 |
|
| c172913a |
sample[0][-1]= sample[1][0 ];
sample[1][ w]= sample[1][w-1]; |
| 2cbb7820 |
//{START_TIMER |
| 2396206f |
if(s->bits_per_raw_sample<=8){ |
| f83c5773 |
for(x=0; x<w; x++){
sample[0][x]= src[x + stride*y];
}
encode_line(s, w, sample, plane_index, 8); |
| 68f8d33b |
}else{ |
| b0e1d0d9 |
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++){ |
| 2396206f |
sample[0][x]= ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample); |
| b0e1d0d9 |
} |
| 68f8d33b |
} |
| 2396206f |
encode_line(s, w, sample, plane_index, s->bits_per_raw_sample); |
| 68f8d33b |
} |
| 2cbb7820 |
//STOP_TIMER("encode line")}
}
} |
| 5e20f836 |
|
| 15acfa21 |
static void encode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3]){ |
| c172913a |
int x, y, p, i; |
| fa2522d7 |
const int ring_size= s->avctx->context_model ? 3 : 2; |
| f7b160e8 |
int16_t *sample[4][3]; |
| 15acfa21 |
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; |
| 2cbb7820 |
s->run_index=0; |
| 115329f1 |
|
| f7b160e8 |
memset(s->sample_buffer, 0, ring_size*4*(w+6)*sizeof(*s->sample_buffer)); |
| 115329f1 |
|
| 2cbb7820 |
for(y=0; y<h; y++){ |
| c172913a |
for(i=0; i<ring_size; i++) |
| f7b160e8 |
for(p=0; p<4; p++) |
| cbabccc3 |
sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3; |
| c172913a |
|
| 5e20f836 |
for(x=0; x<w; x++){ |
| 0b23452c |
int b,g,r,av_uninit(a); |
| 15acfa21 |
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));
} |
| 115329f1 |
|
| 2cbb7820 |
b -= g;
r -= g;
g += (b + r)>>2; |
| 15acfa21 |
b += offset;
r += offset; |
| 115329f1 |
|
| 2cbb7820 |
// 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; |
| f7b160e8 |
sample[3][0][x]= a; |
| 11e659c2 |
} |
| 492aab85 |
for(p=0; p<3 + s->transparency; p++){ |
| c172913a |
sample[p][0][-1]= sample[p][1][0 ];
sample[p][1][ w]= sample[p][1][w-1]; |
| 15acfa21 |
if (lbd)
encode_line(s, w, sample[p], (p+1)/2, 9);
else
encode_line(s, w, sample[p], (p+1)/2, bits+1); |
| 5e20f836 |
}
}
}
|
| 880eae9c |
static void write_quant_table(RangeCoder *c, int16_t *quant_table){ |
| 5e20f836 |
int last=0;
int i; |
| 880eae9c |
uint8_t state[CONTEXT_SIZE];
memset(state, 128, sizeof(state)); |
| 5e20f836 |
|
| 11e659c2 |
for(i=1; i<128 ; i++){ |
| 5e20f836 |
if(quant_table[i] != quant_table[i-1]){ |
| d34a0746 |
put_symbol(c, state, i-last-1, 0); |
| 5e20f836 |
last= i;
}
} |
| d34a0746 |
put_symbol(c, state, i-last-1, 0); |
| 5e20f836 |
}
|
| c868524b |
static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){ |
| 4f22b3bb |
int i;
for(i=0; i<5; i++)
write_quant_table(c, quant_table[i]);
}
|
| 5e20f836 |
static void write_header(FFV1Context *f){ |
| 880eae9c |
uint8_t state[CONTEXT_SIZE]; |
| d56839fc |
int i, j; |
| e2b2f845 |
RangeCoder * const c= &f->slice_context[0]->c; |
| 5e20f836 |
|
| 880eae9c |
memset(state, 128, sizeof(state)); |
| 115329f1 |
|
| 0f27aca7 |
if(f->version < 2){ |
| 1da72577 |
put_symbol(c, state, f->version, 0);
put_symbol(c, state, f->ac, 0);
if(f->ac>1){
for(i=1; i<256; i++){ |
| 6019cd9f |
put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1); |
| 1da72577 |
} |
| 00bbc093 |
} |
| 1da72577 |
put_symbol(c, state, f->colorspace, 0); //YUV cs type
if(f->version>0) |
| 2396206f |
put_symbol(c, state, f->bits_per_raw_sample, 0); |
| 6833fe43 |
put_rac(c, state, f->chroma_planes); |
| 9b9bf5ab |
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0); |
| f7b160e8 |
put_rac(c, state, f->transparency); |
| 1da72577 |
write_quant_tables(c, f->quant_table); |
| 60217b5b |
}else if(f->version < 3){ |
| d56839fc |
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); |
| e1f51b88 |
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);
} |
| d56839fc |
} |
| 0f27aca7 |
} |
| 5e20f836 |
} |
| f544a5fc |
#endif /* CONFIG_FFV1_ENCODER */ |
| 5e20f836 |
|
| 98a6fff9 |
static av_cold int common_init(AVCodecContext *avctx){ |
| 5e20f836 |
FFV1Context *s = avctx->priv_data;
s->avctx= avctx;
s->flags= avctx->flags; |
| 115329f1 |
|
| 4737a593 |
avcodec_get_frame_defaults(&s->picture);
|
| 9cf0841e |
ff_dsputil_init(&s->dsp, avctx); |
| 115329f1 |
|
| 6081c30b |
s->width = avctx->width;
s->height= avctx->height; |
| 115329f1 |
|
| 6081c30b |
assert(s->width && s->height); |
| e2b2f845 |
//defaults
s->num_h_slices=1;
s->num_v_slices=1; |
| 5e20f836 |
|
| cbabccc3 |
|
| 5e20f836 |
return 0;
}
|
| 32883c06 |
static int init_slice_state(FFV1Context *f, FFV1Context *fs){
int j; |
| e2b2f845 |
|
| f7b160e8 |
fs->plane_count= f->plane_count;
fs->transparency= f->transparency; |
| e2b2f845 |
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>1){
//FIXME only redo if state_transition changed
for(j=1; j<256; j++){ |
| e15f1286 |
fs->c.one_state [ j]= f->state_transition[j]; |
| e2b2f845 |
fs->c.zero_state[256-j]= 256-fs->c.one_state [j];
}
}
return 0;
}
|
| 32883c06 |
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;
}
return 0;
}
|
| e2b2f845 |
static av_cold int 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;
memcpy(fs, f, sizeof(*fs)); |
| b7b5bccb |
memset(fs->rc_stat2, 0, sizeof(fs->rc_stat2)); |
| e2b2f845 |
fs->slice_width = sxe - sxs;
fs->slice_height= sye - sys;
fs->slice_x = sxs;
fs->slice_y = sys;
|
| f7b160e8 |
fs->sample_buffer = av_malloc(3*4 * (fs->width+6) * sizeof(*fs->sample_buffer)); |
| e2b2f845 |
if (!fs->sample_buffer)
return AVERROR(ENOMEM);
}
return 0;
}
|
| 99a5e935 |
static int 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])
return AVERROR(ENOMEM);
memset(f->initial_states[i], 128, f->context_count[i]*sizeof(*f->initial_states[i]));
}
return 0;
}
|
| d721141f |
#if CONFIG_FFV1_ENCODER
static int write_extra_header(FFV1Context *f){
RangeCoder * const c= &f->c;
uint8_t state[CONTEXT_SIZE]; |
| 28a3f525 |
int i, j, k;
uint8_t state2[32][CONTEXT_SIZE]; |
| d7a4c43f |
unsigned v; |
| 28a3f525 |
memset(state2, 128, sizeof(state2)); |
| d721141f |
memset(state, 128, sizeof(state));
|
| 28a3f525 |
f->avctx->extradata= av_malloc(f->avctx->extradata_size= 10000 + (11*11*5*5*5+11*11*11)*32); |
| d721141f |
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); |
| ad9371ef |
if(f->version > 2) {
if(f->version == 3) |
| d8676140 |
f->minor_version = 2; |
| 56123595 |
put_symbol(c, state, f->minor_version, 0); |
| ad9371ef |
} |
| d721141f |
put_symbol(c, state, f->ac, 0);
if(f->ac>1){
for(i=1; i<256; i++){ |
| 6019cd9f |
put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1); |
| d721141f |
}
}
put_symbol(c, state, f->colorspace, 0); //YUV cs type |
| 2396206f |
put_symbol(c, state, f->bits_per_raw_sample, 0); |
| 6833fe43 |
put_rac(c, state, f->chroma_planes); |
| 9b9bf5ab |
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0); |
| f7b160e8 |
put_rac(c, state, f->transparency); |
| d721141f |
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]);
|
| 28a3f525 |
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);
}
}
|
| 044f7275 |
if(f->version > 2){
put_symbol(c, state, f->ec, 0);
}
|
| d721141f |
f->avctx->extradata_size= ff_rac_terminate(c); |
| d7a4c43f |
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; |
| d721141f |
return 0;
}
|
| ce3716bf |
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;
}
|
| 98a6fff9 |
static av_cold int encode_init(AVCodecContext *avctx) |
| 5e20f836 |
{
FFV1Context *s = avctx->priv_data; |
| b7b5bccb |
int i, j, k, m; |
| 5e20f836 |
common_init(avctx); |
| 115329f1 |
|
| 5e20f836 |
s->version=0; |
| 8dfbc1c5 |
if((avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) || avctx->slices>1)
s->version = FFMAX(s->version, 2);
|
| 44f789c0 |
if(avctx->level == 3){
s->version = 3; |
| 123dd934 |
}
if(s->ec < 0){
s->ec = (s->version >= 3); |
| 44f789c0 |
}
|
| 8dfbc1c5 |
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"); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| 8dfbc1c5 |
}
|
| acf02839 |
s->ac= avctx->coder_type > 0 ? 2 : 0; |
| 115329f1 |
|
| f7b160e8 |
s->plane_count=3; |
| 5e20f836 |
switch(avctx->pix_fmt){ |
| 65491fa3 |
case PIX_FMT_YUV444P9:
case PIX_FMT_YUV422P9: |
| 7b874dcc |
case PIX_FMT_YUV420P9: |
| 2396206f |
if (!avctx->bits_per_raw_sample)
s->bits_per_raw_sample = 9; |
| 1eabd71c |
case PIX_FMT_YUV444P10: |
| b0e1d0d9 |
case PIX_FMT_YUV420P10:
case PIX_FMT_YUV422P10:
s->packed_at_lsb = 1; |
| 2396206f |
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
s->bits_per_raw_sample = 10; |
| 6833fe43 |
case PIX_FMT_GRAY16: |
| 68f8d33b |
case PIX_FMT_YUV444P16:
case PIX_FMT_YUV422P16:
case PIX_FMT_YUV420P16: |
| 2396206f |
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){ |
| 84c1b149 |
av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n"); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| 68f8d33b |
} |
| acf02839 |
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;
} |
| ef768b0c |
if(!s->ac){
av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n"); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| ef768b0c |
} |
| 228adaab |
s->version= FFMAX(s->version, 1); |
| 83e2e931 |
case PIX_FMT_GRAY8: |
| 5e20f836 |
case PIX_FMT_YUV444P: |
| 917803ba |
case PIX_FMT_YUV440P: |
| 5e20f836 |
case PIX_FMT_YUV422P:
case PIX_FMT_YUV420P:
case PIX_FMT_YUV411P:
case PIX_FMT_YUV410P: |
| 83e2e931 |
s->chroma_planes= av_pix_fmt_descriptors[avctx->pix_fmt].nb_components < 3 ? 0 : 1; |
| 2cbb7820 |
s->colorspace= 0;
break; |
| b0a30ea7 |
case PIX_FMT_YUVA444P: |
| 4e4634aa |
case PIX_FMT_YUVA422P: |
| 7054629f |
case PIX_FMT_YUVA420P: |
| 6833fe43 |
s->chroma_planes= 1; |
| 7054629f |
s->colorspace= 0;
s->transparency= 1;
break; |
| 71e445fc |
case PIX_FMT_RGB32: |
| 2cbb7820 |
s->colorspace= 1; |
| f7b160e8 |
s->transparency= 1; |
| 5e20f836 |
break; |
| 492aab85 |
case PIX_FMT_0RGB32:
s->colorspace= 1;
break; |
| 15acfa21 |
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; |
| 5e20f836 |
default: |
| 9b879566 |
av_log(avctx, AV_LOG_ERROR, "format not supported\n"); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| 5e20f836 |
} |
| 25893ad6 |
if (s->transparency) {
av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n");
} |
| e01f478d |
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);
} |
| 25893ad6 |
|
| 08ed3e8b |
if(s->ac>1)
for(i=1; i<256; i++)
s->state_transition[i]=ver2_state[i];
|
| cadd9ab6 |
for(i=0; i<256; i++){
s->quant_table_count=2; |
| 2396206f |
if(s->bits_per_raw_sample <=8){ |
| cadd9ab6 |
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; |
| f7b160e8 |
if(!s->transparency)
s->plane_count= 2; |
| 2cbb7820 |
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
|
| 5e20f836 |
s->picture_number=0; |
| 115329f1 |
|
| b7b5bccb |
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);
}
} |
| bc29ae4a |
if(avctx->stats_in){
char *p= avctx->stats_in; |
| 73cbf868 |
uint8_t best_state[256][256]; |
| 0ae0faa7 |
int gob_count=0; |
| 3f0671a2 |
char *next; |
| bc29ae4a |
|
| b7b5bccb |
av_assert0(s->version>=2);
|
| bc29ae4a |
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;
}
} |
| b7b5bccb |
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); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| b7b5bccb |
}
p=next;
}
}
}
} |
| 0ae0faa7 |
gob_count= strtol(p, &next, 0);
if(next==p || gob_count <0){
av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n"); |
| 4c4e1256 |
return AVERROR_INVALIDDATA; |
| 0ae0faa7 |
}
p=next; |
| bc29ae4a |
while(*p=='\n' || *p==' ') p++;
if(p[0]==0) break;
} |
| ce3716bf |
sort_stt(s, s->state_transition); |
| b7b5bccb |
|
| 73cbf868 |
find_best_state(best_state, s->state_transition);
|
| b7b5bccb |
for(i=0; i<s->quant_table_count; i++){
for(j=0; j<s->context_count[i]; j++){
for(k=0; k<32; k++){ |
| 73cbf868 |
double p= 128; |
| b7b5bccb |
if(s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]){ |
| 73cbf868 |
p=256.0*s->rc_stat2[i][j][k][1] / (s->rc_stat2[i][j][k][0]+s->rc_stat2[i][j][k][1]); |
| b7b5bccb |
} |
| 73cbf868 |
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)]; |
| b7b5bccb |
}
}
} |
| bc29ae4a |
}
|
| e2b2f845 |
if(s->version>1){ |
| 1d80c8db |
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++){ |
| af285072 |
if(avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64 || !avctx->slices) |
| 1d80c8db |
goto slices_ok;
}
} |
| a4b58fd9 |
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); |
| 1d80c8db |
return -1;
slices_ok: |
| 0f27aca7 |
write_extra_header(s); |
| e2b2f845 |
}
if(init_slice_contexts(s) < 0)
return -1; |
| 32883c06 |
if(init_slices_state(s) < 0) |
| e2b2f845 |
return -1; |
| 0f27aca7 |
|
| b7b5bccb |
#define STATS_OUT_SIZE 1024*1024*6 |
| 672e7e39 |
if(avctx->flags & CODEC_FLAG_PASS1){ |
| b276854d |
avctx->stats_out= av_mallocz(STATS_OUT_SIZE); |
| 672e7e39 |
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);
}
}
} |
| bc29ae4a |
|
| 5e20f836 |
return 0;
} |
| f544a5fc |
#endif /* CONFIG_FFV1_ENCODER */ |
| 5e20f836 |
|
| c7a435aa |
static void clear_slice_state(FFV1Context *f, FFV1Context *fs){
int i, j; |
| 5e20f836 |
|
| 1da72577 |
for(i=0; i<f->plane_count; i++){
PlaneContext *p= &fs->plane[i]; |
| 5e20f836 |
|
| 1da72577 |
p->interlace_bit_state[0]= 128;
p->interlace_bit_state[1]= 128; |
| 115329f1 |
|
| 19721b23 |
if(fs->ac){ |
| 99a5e935 |
if(f->initial_states[p->quant_table_index]){
memcpy(p->state, f->initial_states[p->quant_table_index], CONTEXT_SIZE*p->context_count);
}else |
| 19721b23 |
memset(p->state, 128, CONTEXT_SIZE*p->context_count);
}else{ |
| 9b9bf5ab |
for(j=0; j<p->context_count; j++){ |
| 1da72577 |
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; |
| 9b9bf5ab |
} |
| 11e659c2 |
} |
| c2f1b2cb |
} |
| c7a435aa |
}
|
| b250f9c6 |
#if CONFIG_FFV1_ENCODER |
| b4fc5385 |
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);
}
|
| e2b2f845 |
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; |
| 2396206f |
const int ps= (f->bits_per_raw_sample>8)+1; |
| e2b2f845 |
|
| 83bf9fb6 |
if(p->key_frame)
clear_slice_state(f, fs); |
| b4fc5385 |
if(f->version > 2){
encode_slice_header(f, fs);
} |
| e37419a8 |
if(!fs->ac){ |
| d8676140 |
if(f->version > 2) |
| 86c8ab1f |
put_rac(&fs->c, (uint8_t[]){129}, 0); |
| e37419a8 |
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);
} |
| b4fc5385 |
|
| e2b2f845 |
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;
|
| 189db9c9 |
encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0); |
| e2b2f845 |
|
| 6833fe43 |
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);
} |
| 7054629f |
if (fs->transparency)
encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2); |
| e2b2f845 |
}else{ |
| 15acfa21 |
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); |
| e2b2f845 |
}
emms_c();
return 0;
}
|
| 278d8868 |
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *pict, int *got_packet)
{ |
| 5e20f836 |
FFV1Context *f = avctx->priv_data; |
| e2b2f845 |
RangeCoder * const c= &f->slice_context[0]->c; |
| 5e20f836 |
AVFrame * const p= &f->picture; |
| 11e659c2 |
int used_count= 0; |
| 880eae9c |
uint8_t keystate=128; |
| e2b2f845 |
uint8_t *buf_p; |
| 278d8868 |
int i, ret;
|
| ed45636e |
if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*((8*2+1+1)*4)/8 |
| ae2c33b0 |
+ FF_MIN_BUFFER_SIZE)) < 0) |
| 278d8868 |
return ret; |
| 880eae9c |
|
| 278d8868 |
ff_init_range_encoder(c, pkt->data, pkt->size); |
| 880eae9c |
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
| 5e20f836 |
*p = *pict; |
| ce5e49b0 |
p->pict_type= AV_PICTURE_TYPE_I; |
| 115329f1 |
|
| 5e20f836 |
if(avctx->gop_size==0 || f->picture_number % avctx->gop_size == 0){ |
| 880eae9c |
put_rac(c, &keystate, 1); |
| 5e20f836 |
p->key_frame= 1; |
| 0ae0faa7 |
f->gob_count++; |
| 5e20f836 |
write_header(f);
}else{ |
| 880eae9c |
put_rac(c, &keystate, 0); |
| 5e20f836 |
p->key_frame= 0;
}
|
| e37419a8 |
if (f->ac>1){ |
| 00bbc093 |
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];
} |
| 11e659c2 |
} |
| 115329f1 |
|
| e2b2f845 |
for(i=1; i<f->slice_count; i++){
FFV1Context *fs= f->slice_context[i]; |
| 3be4f230 |
uint8_t *start = pkt->data + (pkt->size-used_count)*(int64_t)i/f->slice_count; |
| 278d8868 |
int len = pkt->size/f->slice_count; |
| e37419a8 |
ff_init_range_encoder(&fs->c, start, len); |
| 5e20f836 |
} |
| e2b2f845 |
avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*)); |
| 115329f1 |
|
| 278d8868 |
buf_p = pkt->data; |
| e2b2f845 |
for(i=0; i<f->slice_count; i++){
FFV1Context *fs= f->slice_context[i];
int bytes; |
| 5e20f836 |
|
| e2b2f845 |
if(fs->ac){ |
| ad9371ef |
uint8_t state=129; |
| e2b2f845 |
put_rac(&fs->c, &state, 0);
bytes= ff_rac_terminate(&fs->c);
}else{
flush_put_bits(&fs->pb); //nicer padding FIXME |
| e37419a8 |
bytes= fs->ac_byte_count + (put_bits_count(&fs->pb)+7)/8; |
| e2b2f845 |
} |
| 3ed6917a |
if(i>0 || f->version>2){ |
| 278d8868 |
av_assert0(bytes < pkt->size/f->slice_count); |
| fe5bc46f |
memmove(buf_p, fs->c.bytestream_start, bytes); |
| e2b2f845 |
av_assert0(bytes < (1<<24));
AV_WB24(buf_p+bytes, bytes);
bytes+=3;
} |
| 044f7275 |
if(f->ec){ |
| c24ca7b8 |
unsigned v;
buf_p[bytes++] = 0;
v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes); |
| 044f7275 |
AV_WL32(buf_p + bytes, v); bytes += 4;
} |
| e2b2f845 |
buf_p += bytes; |
| 11e659c2 |
} |
| e2b2f845 |
|
| bc29ae4a |
if((avctx->flags&CODEC_FLAG_PASS1) && (f->picture_number&31)==0){ |
| b7b5bccb |
int j, k, m; |
| bc29ae4a |
char *p= avctx->stats_out; |
| 2a317c6b |
char *end= p + STATS_OUT_SIZE; |
| bc29ae4a |
memset(f->rc_stat, 0, sizeof(f->rc_stat)); |
| b7b5bccb |
for(i=0; i<f->quant_table_count; i++)
memset(f->rc_stat2[i], 0, f->context_count[i]*sizeof(*f->rc_stat2[i]));
|
| bc29ae4a |
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];
} |
| b7b5bccb |
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];
}
}
} |
| bc29ae4a |
}
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"); |
| b7b5bccb |
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);
}
}
} |
| 0ae0faa7 |
snprintf(p, end-p, "%d\n", f->gob_count); |
| c42c1007 |
} else if(avctx->flags&CODEC_FLAG_PASS1) |
| bc29ae4a |
avctx->stats_out[0] = '\0';
|
| e2b2f845 |
f->picture_number++; |
| 278d8868 |
pkt->size = buf_p - pkt->data;
pkt->flags |= AV_PKT_FLAG_KEY*p->key_frame;
*got_packet = 1;
return 0; |
| 5e20f836 |
} |
| f544a5fc |
#endif /* CONFIG_FFV1_ENCODER */ |
| 5e20f836 |
|
| 98a6fff9 |
static av_cold int common_end(AVCodecContext *avctx){ |
| 0c2aaa88 |
FFV1Context *s = avctx->priv_data; |
| e2b2f845 |
int i, j; |
| 5e20f836 |
|
| 58b4e540 |
if (avctx->codec->decode && s->picture.data[0])
avctx->release_buffer(avctx, &s->picture); |
| 371d37fc |
if (avctx->codec->decode && s->last_picture.data[0])
avctx->release_buffer(avctx, &s->last_picture); |
| 58b4e540 |
|
| e2b2f845 |
for(j=0; j<s->slice_count; j++){
FFV1Context *fs= s->slice_context[j]; |
| 1da72577 |
for(i=0; i<s->plane_count; i++){
PlaneContext *p= &fs->plane[i]; |
| 5e20f836 |
|
| 1da72577 |
av_freep(&p->state);
av_freep(&p->vlc_state);
} |
| e2b2f845 |
av_freep(&fs->sample_buffer);
} |
| cbabccc3 |
|
| bc29ae4a |
av_freep(&avctx->stats_out); |
| 672e7e39 |
for(j=0; j<s->quant_table_count; j++){ |
| 99a5e935 |
av_freep(&s->initial_states[j]); |
| 672e7e39 |
for(i=0; i<s->slice_count; i++){
FFV1Context *sf= s->slice_context[i];
av_freep(&sf->rc_stat2[j]);
} |
| b7b5bccb |
av_freep(&s->rc_stat2[j]); |
| 672e7e39 |
} |
| bc29ae4a |
|
| a0e7079a |
for(i=0; i<s->slice_count; i++){
av_freep(&s->slice_context[i]);
}
|
| 5e20f836 |
return 0;
}
|
| 0a6b1a9f |
static av_always_inline void decode_line(FFV1Context *s, int w,
int16_t *sample[2],
int plane_index, int bits)
{ |
| 5e20f836 |
PlaneContext * const p= &s->plane[plane_index]; |
| 880eae9c |
RangeCoder * const c= &s->c; |
| 2cbb7820 |
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; |
| 115329f1 |
|
| e42393d1 |
context= get_context(p, sample[1] + x, sample[0] + x, sample[1] + x); |
| 2cbb7820 |
if(context < 0){
context= -context;
sign=1;
}else
sign=0; |
| 115329f1 |
|
| f08ed90d |
av_assert2(context < p->context_count); |
| 2cbb7820 |
|
| d34a0746 |
if(s->ac){ |
| 217d34e3 |
diff= get_symbol_inline(c, p->state[context], 1); |
| d34a0746 |
}else{ |
| 2cbb7820 |
if(context == 0 && run_mode==0) run_mode=1; |
| 115329f1 |
|
| 2cbb7820 |
if(run_mode){
if(run_count==0 && run_mode==1){
if(get_bits1(&s->gb)){ |
| b3bf98aa |
run_count = 1<<ff_log2_run[run_index]; |
| 2cbb7820 |
if(x + run_count <= w) run_index++;
}else{ |
| b3bf98aa |
if(ff_log2_run[run_index]) run_count = get_bits(&s->gb, ff_log2_run[run_index]); |
| 2cbb7820 |
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); |
| 115329f1 |
|
| 2cbb7820 |
// 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<<bits)-1);
} |
| 115329f1 |
s->run_index= run_index; |
| 2cbb7820 |
}
static void decode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){
int x, y; |
| 0a6b1a9f |
int16_t *sample[2]; |
| cbabccc3 |
sample[0]=s->sample_buffer +3;
sample[1]=s->sample_buffer+w+6+3; |
| 2cbb7820 |
s->run_index=0; |
| 115329f1 |
|
| cbabccc3 |
memset(s->sample_buffer, 0, 2*(w+6)*sizeof(*s->sample_buffer)); |
| 115329f1 |
|
| 5e20f836 |
for(y=0; y<h; y++){ |
| 0a6b1a9f |
int16_t *temp = sample[0]; //FIXME try a normal buffer |
| 5e20f836 |
|
| d9ced4ca |
sample[0]= sample[1];
sample[1]= temp; |
| 5e20f836 |
|
| d9ced4ca |
sample[1][-1]= sample[0][0 ];
sample[0][ w]= sample[0][w-1]; |
| 115329f1 |
|
| 2cbb7820 |
//{START_TIMER |
| 68f8d33b |
if(s->avctx->bits_per_raw_sample <= 8){ |
| f83c5773 |
decode_line(s, w, sample, plane_index, 8);
for(x=0; x<w; x++){
src[x + stride*y]= sample[1][x];
} |
| 68f8d33b |
}else{
decode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample); |
| 7a3a2598 |
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);
} |
| 68f8d33b |
}
} |
| 2cbb7820 |
//STOP_TIMER("decode-line")}
}
} |
| 5e20f836 |
|
| 15acfa21 |
static void decode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3]){ |
| 2cbb7820 |
int x, y, p; |
| 2027d073 |
int16_t *sample[4][2]; |
| 15acfa21 |
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; |
| 2027d073 |
for(x=0; x<4; x++){ |
| cbabccc3 |
sample[x][0] = s->sample_buffer + x*2 *(w+6) + 3;
sample[x][1] = s->sample_buffer + (x*2+1)*(w+6) + 3; |
| d1845b4c |
} |
| 2cbb7820 |
s->run_index=0; |
| 115329f1 |
|
| 2027d073 |
memset(s->sample_buffer, 0, 8*(w+6)*sizeof(*s->sample_buffer)); |
| 115329f1 |
|
| 2cbb7820 |
for(y=0; y<h; y++){ |
| 2027d073 |
for(p=0; p<3 + s->transparency; p++){ |
| 0a6b1a9f |
int16_t *temp = sample[p][0]; //FIXME try a normal buffer |
| 2cbb7820 |
sample[p][0]= sample[p][1];
sample[p][1]= temp; |
| 5e20f836 |
|
| 2cbb7820 |
sample[p][1][-1]= sample[p][0][0 ];
sample[p][0][ w]= sample[p][0][w-1]; |
| 15acfa21 |
if (lbd)
decode_line(s, w, sample[p], (p+1)/2, 9);
else
decode_line(s, w, sample[p], (p+1)/2, bits+1); |
| 2cbb7820 |
}
for(x=0; x<w; x++){
int g= sample[0][1][x];
int b= sample[1][1][x];
int r= sample[2][1][x]; |
| 2027d073 |
int a= sample[3][1][x]; |
| 11e659c2 |
|
| 2cbb7820 |
// assert(g>=0 && b>=0 && r>=0);
// assert(g<256 && b<512 && r<512); |
| 115329f1 |
|
| 15acfa21 |
b -= offset;
r -= offset; |
| 2cbb7820 |
g -= (b + r)>>2;
b += g;
r += g; |
| 115329f1 |
|
| 15acfa21 |
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;
} |
| 5e20f836 |
}
}
}
|
| b4fc5385 |
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;
}
|
| e2b2f845 |
static int decode_slice(AVCodecContext *c, void *arg){
FFV1Context *fs= *(void**)arg;
FFV1Context *f= fs->avctx->priv_data; |
| b4fc5385 |
int width, height, x, y; |
| 189db9c9 |
const int ps= (c->bits_per_raw_sample>8)+1; |
| e2b2f845 |
AVFrame * const p= &f->picture;
|
| b4fc5385 |
if(f->version > 2){
if(init_slice_state(f, fs) < 0)
return AVERROR(ENOMEM); |
| f5af3568 |
if(decode_slice_header(f, fs) < 0) {
fs->slice_damaged = 1; |
| 3f4c0dad |
return AVERROR_INVALIDDATA; |
| f5af3568 |
} |
| b4fc5385 |
} |
| 3f4c0dad |
if(init_slice_state(f, fs) < 0)
return AVERROR(ENOMEM); |
| 8456089f |
if(f->picture.key_frame)
clear_slice_state(f, fs); |
| b4fc5385 |
width = fs->slice_width;
height= fs->slice_height;
x= fs->slice_x;
y= fs->slice_y; |
| 8456089f |
|
| 31581603 |
if(!fs->ac){ |
| 55a6f705 |
if (f->version == 3 && f->minor_version > 1 || f->version > 3) |
| 86c8ab1f |
get_rac(&fs->c, (uint8_t[]){129}); |
| 31581603 |
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);
}
|
| e2b2f845 |
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; |
| 189db9c9 |
decode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0); |
| e2b2f845 |
|
| 6833fe43 |
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);
} |
| ab7da16e |
if (fs->transparency)
decode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2); |
| e2b2f845 |
}else{ |
| 15acfa21 |
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); |
| e2b2f845 |
} |
| ac9389a6 |
if(fs->ac && f->version > 2) { |
| aea15df3 |
int v; |
| 86c8ab1f |
get_rac(&fs->c, (uint8_t[]){129}); |
| aea15df3 |
v = fs->c.bytestream_end - fs->c.bytestream - 2 - 5*f->ec;
if(v) { |
| ac9389a6 |
av_log(f->avctx, AV_LOG_ERROR, "bytestream end mismatching by %d\n", v);
fs->slice_damaged = 1;
}
} |
| e2b2f845 |
emms_c();
return 0;
}
|
| 880eae9c |
static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale){ |
| 5e20f836 |
int v;
int i=0; |
| 880eae9c |
uint8_t state[CONTEXT_SIZE];
memset(state, 128, sizeof(state)); |
| 5e20f836 |
|
| 11e659c2 |
for(v=0; i<128 ; v++){ |
| 9ebe6e39 |
unsigned len= get_symbol(c, state, 0) + 1; |
| 5e20f836 |
|
| 9ebe6e39 |
if(len > 128 - i) return -1; |
| 115329f1 |
|
| 5e20f836 |
while(len--){ |
| 11e659c2 |
quant_table[i] = scale*v;
i++; |
| 5e20f836 |
//printf("%2d ",v);
//if(i%16==0) printf("\n");
}
} |
| 11e659c2 |
for(i=1; i<128; i++){
quant_table[256-i]= -quant_table[i];
}
quant_table[128]= -quant_table[127]; |
| 115329f1 |
|
| 11e659c2 |
return 2*v - 1; |
| 5e20f836 |
}
|
| c868524b |
static int read_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){ |
| 4f22b3bb |
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;
}
|
| 0f27aca7 |
static int read_extra_header(FFV1Context *f){
RangeCoder * const c= &f->c;
uint8_t state[CONTEXT_SIZE]; |
| 28a3f525 |
int i, j, k;
uint8_t state2[32][CONTEXT_SIZE]; |
| 0f27aca7 |
|
| 28a3f525 |
memset(state2, 128, sizeof(state2)); |
| 0f27aca7 |
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); |
| 21fdf1cc |
if(f->version > 2) {
c->bytestream_end -= 4; |
| 56123595 |
f->minor_version= get_symbol(c, state, 0); |
| 21fdf1cc |
} |
| 0f27aca7 |
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); |
| 1b295a17 |
f->chroma_planes= get_rac(c, state); |
| 0f27aca7 |
f->chroma_h_shift= get_symbol(c, state, 0);
f->chroma_v_shift= get_symbol(c, state, 0); |
| 2027d073 |
f->transparency= get_rac(c, state);
f->plane_count= 2 + f->transparency; |
| e2b2f845 |
f->num_h_slices= 1 + get_symbol(c, state, 0);
f->num_v_slices= 1 + get_symbol(c, state, 0); |
| d56839fc |
if(f->num_h_slices > (unsigned)f->width || f->num_v_slices > (unsigned)f->height){ |
| e2b2f845 |
av_log(f->avctx, AV_LOG_ERROR, "too many slices\n");
return -1;
} |
| 0f27aca7 |
|
| c5ac275b |
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; |
| 0f27aca7 |
}
}
|
| 28a3f525 |
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;
}
}
}
}
|
| d7a4c43f |
if(f->version > 2){ |
| 044f7275 |
f->ec = get_symbol(c, state, 0);
}
if(f->version > 2){ |
| d7a4c43f |
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;
}
}
|
| 0f27aca7 |
return 0;
}
|
| 5e20f836 |
static int read_header(FFV1Context *f){ |
| 880eae9c |
uint8_t state[CONTEXT_SIZE]; |
| 0b23452c |
int i, j, context_count = -1; //-1 to avoid warning |
| e2b2f845 |
RangeCoder * const c= &f->slice_context[0]->c; |
| 115329f1 |
|
| 880eae9c |
memset(state, 128, sizeof(state));
|
| 0f27aca7 |
if(f->version < 2){ |
| 97c281d5 |
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; |
| 1da72577 |
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];
} |
| 00bbc093 |
} |
| 1da72577 |
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); |
| 6833fe43 |
f->chroma_planes= get_rac(c, state); |
| 1da72577 |
f->chroma_h_shift= get_symbol(c, state, 0);
f->chroma_v_shift= get_symbol(c, state, 0); |
| 2027d073 |
f->transparency= get_rac(c, state);
f->plane_count= 2 + f->transparency; |
| 0f27aca7 |
} |
| 085565f7 |
|
| 2cbb7820 |
if(f->colorspace==0){ |
| 83e2e931 |
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; |
| 6833fe43 |
}else if(f->avctx->bits_per_raw_sample<=8 && !f->transparency){ |
| f83c5773 |
switch(16*f->chroma_h_shift + f->chroma_v_shift){
case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P; break; |
| ec09230c |
case 0x01: f->avctx->pix_fmt= PIX_FMT_YUV440P; break; |
| f83c5773 |
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: |
| ab7da16e |
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){ |
| c8eba9f9 |
case 0x00: f->avctx->pix_fmt= PIX_FMT_YUVA444P; break; |
| 4e4634aa |
case 0x10: f->avctx->pix_fmt= PIX_FMT_YUVA422P; break; |
| ab7da16e |
case 0x11: f->avctx->pix_fmt= PIX_FMT_YUVA420P; break;
default: |
| f83c5773 |
av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
return -1;
} |
| 7b874dcc |
}else if(f->avctx->bits_per_raw_sample==9) { |
| 65491fa3 |
f->packed_at_lsb=1; |
| 7b874dcc |
switch(16*f->chroma_h_shift + f->chroma_v_shift){ |
| 65491fa3 |
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; |
| 7b874dcc |
default:
av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
return -1;
} |
| 7a3a2598 |
}else if(f->avctx->bits_per_raw_sample==10) { |
| 1eabd71c |
f->packed_at_lsb=1; |
| 7a3a2598 |
switch(16*f->chroma_h_shift + f->chroma_v_shift){ |
| 1eabd71c |
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; |
| 7a3a2598 |
default:
av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
return -1;
}
}else { |
| 68f8d33b |
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;
}
} |
| 2cbb7820 |
}else if(f->colorspace==1){
if(f->chroma_h_shift || f->chroma_v_shift){ |
| 9b879566 |
av_log(f->avctx, AV_LOG_ERROR, "chroma subsampling not supported in this colorspace\n"); |
| 2cbb7820 |
return -1;
} |
| 15acfa21 |
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 |
| 4b03d960 |
if(f->transparency) f->avctx->pix_fmt= PIX_FMT_RGB32;
else f->avctx->pix_fmt= PIX_FMT_0RGB32; |
| 2cbb7820 |
}else{ |
| 9b879566 |
av_log(f->avctx, AV_LOG_ERROR, "colorspace not supported\n"); |
| 085565f7 |
return -1;
} |
| 2cbb7820 |
|
| 085565f7 |
//printf("%d %d %d\n", f->chroma_h_shift, f->chroma_v_shift,f->avctx->pix_fmt); |
| 0f27aca7 |
if(f->version < 2){ |
| 1da72577 |
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; |
| 085565f7 |
} |
| 60217b5b |
}else if(f->version < 3){ |
| d56839fc |
f->slice_count= get_symbol(c, state, 0); |
| 60217b5b |
}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; |
| c5ac275b |
} |
| d56839fc |
|
| e2b2f845 |
for(j=0; j<f->slice_count; j++){
FFV1Context *fs= f->slice_context[j];
fs->ac= f->ac; |
| 7a3a2598 |
fs->packed_at_lsb= f->packed_at_lsb; |
| d56839fc |
|
| b45a313e |
fs->slice_damaged = 0;
|
| b4fc5385 |
if(f->version == 2){ |
| d56839fc |
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;
}
|
| 1da72577 |
for(i=0; i<f->plane_count; i++){
PlaneContext * const p= &fs->plane[i];
|
| b4fc5385 |
if(f->version == 2){ |
| 1da72577 |
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;
} |
| e1f51b88 |
p->quant_table_index= idx; |
| 1da72577 |
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)); |
| e42393d1 |
}
|
| b4fc5385 |
if(f->version <= 2){ |
| 0b23452c |
av_assert0(context_count>=0); |
| 68a9194b |
if(p->context_count < context_count){
av_freep(&p->state);
av_freep(&p->vlc_state);
}
p->context_count= context_count; |
| b4fc5385 |
} |
| 11e659c2 |
} |
| 5e20f836 |
}
return 0;
}
|
| 98a6fff9 |
static av_cold int decode_init(AVCodecContext *avctx) |
| 5e20f836 |
{ |
| 0f27aca7 |
FFV1Context *f = avctx->priv_data; |
| 5e20f836 |
common_init(avctx); |
| 115329f1 |
|
| e2b2f845 |
if(avctx->extradata && read_extra_header(f) < 0)
return -1;
if(init_slice_contexts(f) < 0)
return -1; |
| 0f27aca7 |
|
| 5e20f836 |
return 0;
}
|
| 7a00bbad |
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size; |
| 5e20f836 |
FFV1Context *f = avctx->priv_data; |
| e2b2f845 |
RangeCoder * const c= &f->slice_context[0]->c; |
| 5e20f836 |
AVFrame * const p= &f->picture; |
| 23fba3ed |
int i; |
| 880eae9c |
uint8_t keystate= 128; |
| e2b2f845 |
const uint8_t *buf_p; |
| 5e20f836 |
AVFrame *picture = data;
|
| 58b4e540 |
/* release previously stored data */
if (p->data[0])
avctx->release_buffer(avctx, p);
|
| 880eae9c |
ff_init_range_decoder(c, buf, buf_size);
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
| e5017ab8 |
|
| 5e20f836 |
|
| ce5e49b0 |
p->pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P |
| 880eae9c |
if(get_rac(c, &keystate)){ |
| 5e20f836 |
p->key_frame= 1; |
| abec6549 |
f->key_frame_ok = 0; |
| ee7388c9 |
if(read_header(f) < 0)
return -1; |
| abec6549 |
f->key_frame_ok = 1; |
| 5e20f836 |
}else{ |
| abec6549 |
if (!f->key_frame_ok) {
av_log(avctx, AV_LOG_ERROR, "Cant decode non keyframe without valid keyframe\n");
return AVERROR_INVALIDDATA;
} |
| 5e20f836 |
p->key_frame= 0;
} |
| 00bbc093 |
|
| 371d37fc |
p->reference= 3; //for error concealment |
| 085565f7 |
if(avctx->get_buffer(avctx, p) < 0){ |
| 9b879566 |
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| 085565f7 |
return -1;
}
|
| 5e20f836 |
if(avctx->debug&FF_DEBUG_PICT_INFO) |
| 38c9ebd2 |
av_log(avctx, AV_LOG_DEBUG, "ver:%d keyframe:%d coder:%d ec:%d slices:%d\n",
f->version, p->key_frame, f->ac, f->ec, f->slice_count); |
| 115329f1 |
|
| e2b2f845 |
buf_p= buf + buf_size; |
| 9408316a |
for(i=f->slice_count-1; i>=0; i--){ |
| e2b2f845 |
FFV1Context *fs= f->slice_context[i]; |
| c24ca7b8 |
int trailer = 3 + 5*!!f->ec; |
| 9408316a |
int v;
|
| 3ed6917a |
if(i || f->version>2) v = AV_RB24(buf_p-trailer)+trailer;
else v = buf_p - c->bytestream_start; |
| 9408316a |
if(buf_p - c->bytestream_start < v){ |
| e2b2f845 |
av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n");
return -1;
}
buf_p -= v; |
| 9408316a |
|
| 044f7275 |
if(f->ec){
unsigned crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, v);
if(crc){ |
| 051dd2ee |
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");
} |
| 094845aa |
fs->slice_damaged = 1; |
| 044f7275 |
}
}
|
| 9408316a |
if(i){ |
| 31581603 |
ff_init_range_decoder(&fs->c, buf_p, v); |
| b0d674ec |
}else |
| cb40d360 |
fs->c.bytestream_end = (uint8_t *)(buf_p + v); |
| 5e20f836 |
} |
| 115329f1 |
|
| e2b2f845 |
avctx->execute(avctx, decode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*)); |
| 094845aa |
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);
} |
| cb40d360 |
av_image_copy(dst, f->picture.linesize, (const uint8_t **)src, f->last_picture.linesize, |
| 094845aa |
avctx->pix_fmt, fs->slice_width, fs->slice_height);
}
}
|
| 5e20f836 |
f->picture_number++;
*picture= *p;
*data_size = sizeof(AVFrame); |
| 115329f1 |
|
| 371d37fc |
FFSWAP(AVFrame, f->picture, f->last_picture);
|
| e2b2f845 |
return buf_size; |
| 5e20f836 |
}
|
| e7e2df27 |
AVCodec ff_ffv1_decoder = { |
| ec6402b7 |
.name = "ffv1",
.type = AVMEDIA_TYPE_VIDEO, |
| 36ef5369 |
.id = AV_CODEC_ID_FFV1, |
| ec6402b7 |
.priv_data_size = sizeof(FFV1Context),
.init = decode_init,
.close = common_end,
.decode = decode_frame, |
| 00c3b67b |
.capabilities = CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/ |
CODEC_CAP_SLICE_THREADS,
.long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"), |
| 5e20f836 |
};
|
| b250f9c6 |
#if CONFIG_FFV1_ENCODER |
| 123dd934 |
#define OFFSET(x) offsetof(FFV1Context, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = { |
| d46c1c72 |
{ "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE}, |
| 123dd934 |
{NULL}
};
static const AVClass class = {
.class_name = "ffv1 encoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
|
| acf02839 |
static const AVCodecDefault ffv1_defaults[] = {
{ "coder", "-1" },
{ NULL },
};
|
| e7e2df27 |
AVCodec ff_ffv1_encoder = { |
| ec6402b7 |
.name = "ffv1",
.type = AVMEDIA_TYPE_VIDEO, |
| 36ef5369 |
.id = AV_CODEC_ID_FFV1, |
| ec6402b7 |
.priv_data_size = sizeof(FFV1Context),
.init = encode_init, |
| 278d8868 |
.encode2 = encode_frame, |
| ec6402b7 |
.close = common_end, |
| 00c3b67b |
.capabilities = CODEC_CAP_SLICE_THREADS, |
| acf02839 |
.defaults = ffv1_defaults, |
| f06269dd |
.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, |
| 15acfa21 |
PIX_FMT_GRAY16, PIX_FMT_GRAY8, PIX_FMT_GBRP9, PIX_FMT_GBRP10,
PIX_FMT_GBRP12, PIX_FMT_GBRP14, |
| f06269dd |
PIX_FMT_NONE
}, |
| 00c3b67b |
.long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"), |
| 123dd934 |
.priv_class = &class, |
| 5e20f836 |
}; |
| 2a250222 |
#endif |