*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
+
/**
- * @file ffv1.c
- * FF Video Codec 1 (a experimental lossless codec)
+ * @file libavcodec/ffv1.c
+ * FF Video Codec 1 (an experimental lossless codec)
*/
-#include "common.h"
#include "avcodec.h"
+#include "get_bits.h"
+#include "put_bits.h"
#include "dsputil.h"
-#include "cabac.h"
+#include "rangecoder.h"
+#include "golomb.h"
+#include "mathops.h"
#define MAX_PLANES 4
#define CONTEXT_SIZE 32
-#if 0
-#define DEFAULT_QDIFF_COUNT (9)
-
-static const uint8_t default_quant_table[512]={
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3,
- 4,
- 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+extern const uint8_t ff_log2_run[32];
+
+static const int8_t quant3[256]={
+ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0,
};
-#else
-#define DEFAULT_QDIFF_COUNT (16)
-static const uint8_t default_quant_table[256]={
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+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,
- 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7,
-8,
- 9,10,11,11,12,12,12,12,13,13,13,13,13,13,13,13,
-14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
-15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
- };
-#endif
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-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 int to5[16]={
-0,0,0,0,
-0,0,0,1,
-2,3,4,4,
-4,4,4,4,
+static const int8_t quant5[256]={
+ 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1,
+};
+static const int8_t quant7[256]={
+ 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
+-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,
};
+static const int8_t quant9[256]={
+ 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,
+-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1,
+};
+static const int8_t 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 int8_t quant13[256]={
+ 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
+-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
+-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
+-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
+-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5,
+-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
+-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
+-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1,
+};
+
+typedef struct VlcState{
+ int16_t drift;
+ uint16_t error_sum;
+ int8_t bias;
+ uint8_t count;
+} VlcState;
typedef struct PlaneContext{
- uint8_t quant_table[256];
- int qdiff_count;
int context_count;
uint8_t (*state)[CONTEXT_SIZE];
+ VlcState *vlc_state;
uint8_t interlace_bit_state[2];
} PlaneContext;
typedef struct FFV1Context{
AVCodecContext *avctx;
- CABACContext c;
+ RangeCoder c;
+ GetBitContext gb;
+ PutBitContext pb;
int version;
int width, height;
int chroma_h_shift, chroma_v_shift;
int picture_number;
AVFrame picture;
int plane_count;
+ int ac; ///< 1-> CABAC 0-> golomb rice
PlaneContext plane[MAX_PLANES];
-
- DSPContext dsp;
+ int16_t quant_table[5][256];
+ int run_index;
+ int colorspace;
+
+ DSPContext dsp;
}FFV1Context;
- //1.774215
-static inline int predict(FFV1Context *s, uint8_t *src, int stride, int x, int y){
- if(x && y){
-// const int RT= src[+1-stride];
- const int LT= src[-1-stride];
- const int T= src[ -stride];
- const int L = src[-1 ];
- uint8_t *cm = cropTbl + MAX_NEG_CROP;
- const int gradient= cm[L + T - LT];
-
-// return gradient;
- return mid_pred(L, gradient, T);
- }else{
- if(y){
- return src[ -stride];
- }else if(x){
- return src[-1 ];
- }else{
- return 128;
- }
+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(int_fast16_t *src, int_fast16_t *last){
+ const int LT= last[-1];
+ const int T= last[ 0];
+ const int L = src[-1];
-#if 0
-static inline void put_symbol(CABACContext, uint8_t *state, int v){
- put_cabac_ueg(c, state, v, 32, 1, 4 , 32);
+ return mid_pred(L, L + T - LT, T);
}
-static inline int get_symbol(CABACContext, uint8_t *state){
- return get_cabac_ueg(c, state, 32, 1, 4 , 32);
-}
-#elif 0
-static inline void put_symbol(CABACContext *c, uint8_t *state, int v){
- if(v==0)
- put_cabac(c, state+0, 1);
- else{
- put_cabac(c, state+0, 0);
- put_cabac(c, state+1, v<0);
- if(v<0) state += 64;
- put_cabac_ueg(c, state+2, ABS(v)-1, 32, 0, 4 , 32);
- }
+static inline int get_context(FFV1Context *f, int_fast16_t *src, int_fast16_t *last, int_fast16_t *last2){
+ const int LT= last[-1];
+ const int T= last[ 0];
+ const int RT= last[ 1];
+ const int L = src[-1];
+
+ if(f->quant_table[3][127]){
+ const int TT= last2[0];
+ const int LL= src[-2];
+ return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF]
+ +f->quant_table[3][(LL-L) & 0xFF] + f->quant_table[4][(TT-T) & 0xFF];
+ }else
+ return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF];
}
-static inline int get_symbol(CABACContext *c, uint8_t *state){
- if(get_cabac(c, state+0))
- return 0;
- else{
- int sign= get_cabac(c, state+1);
- if(sign)
- return -1-get_cabac_ueg(c, state+66, 32, 0, 4 , 32);
- else
- return 1+get_cabac_ueg(c, state+2 , 32, 0, 4 , 32);
- }
-}
-#else
-
-/**
- * put
- */
-static inline void put_symbol(CABACContext *c, uint8_t *state, int v, int is_signed){
+static inline void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed){
int i;
if(v){
- const int a= ABS(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);
- put_cabac(c, state+0, 0);
- put_cabac_u(c, state+1, e, 7, 6, 1); //1..7
- if(e<7){
for(i=e-1; i>=0; i--){
- static const int offset[7]= {15+0, 15+0, 15+1, 15+3, 15+6, 15+10, 15+11};
- put_cabac(c, state+offset[e]+i, (a>>i)&1); //15..31
+ put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31
}
+
if(is_signed)
- put_cabac(c, state+8 + e, v < 0); //8..14
+ put_rac(c, state+11 + 10, v < 0); //11..21
}
}else{
- put_cabac(c, state+0, 1);
+ put_rac(c, state+0, 1);
}
}
-static inline int get_symbol(CABACContext *c, uint8_t *state, int is_signed){
- int i;
+static void av_noinline put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
+ put_symbol_inline(c, state, v, is_signed);
+}
- if(get_cabac(c, state+0))
+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{
- const int e= get_cabac_u(c, state+1, 7, 6, 1); //1..7
-
- if(e<7){
- int a= 1<<e;
+ int i, e, a;
+ e= 0;
+ while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10
+ e++;
+ }
- for(i=e-1; i>=0; i--){
- static const int offset[7]= {15+0, 15+0, 15+1, 15+3, 15+6, 15+10, 15+11};
- a += get_cabac(c, state+offset[e]+i)<<i; //14..31
- }
+ a= 1;
+ for(i=e-1; i>=0; i--){
+ a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31
+ }
- if(is_signed && get_cabac(c, state+8 + e)) //8..14
- return -a;
- else
- return a;
- }else
- return -128;
+ e= -(is_signed && get_rac(c, state+11 + FFMIN(e, 10))); //11..21
+ return (a^e)-e;
+ }
+}
+
+static int av_noinline 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;
+//printf("final: %d ", v);
+ v = fold(v - state->bias, bits);
+
+ i= state->count;
+ k=0;
+ while(i < state->error_sum){ //FIXME optimize
+ k++;
+ i += i;
+ }
+
+ assert(k<=8);
+
+#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
-static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){
+//printf("v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code, state->bias, state->error_sum, state->drift, state->count, k);
+ set_sr_golomb(pb, code, k, 12, bits);
+
+ update_vlc_state(state, v);
+}
+
+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);
+//printf("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);
+//printf("final: %d\n", ret);
+ return ret;
+}
+
+#if CONFIG_FFV1_ENCODER
+static inline int encode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
PlaneContext * const p= &s->plane[plane_index];
- CABACContext * const c= &s->c;
- int x,y;
- uint8_t pred_diff_buffer[4][w+6];
- uint8_t *pred_diff[4]= {pred_diff_buffer[0]+3, pred_diff_buffer[1]+3, pred_diff_buffer[2]+3, pred_diff_buffer[3]+3};
-// uint8_t temp_buf[3*w], *temp= temp_buf + 3*w;
-
- memset(pred_diff_buffer, 0, sizeof(pred_diff_buffer));
-
+ 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(s, 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){
+ put_symbol_inline(c, p->state[context], diff, 1);
+ }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++;
+ }
+ }
+
+// printf("count:%d index:%d, mode:%d, x:%d y:%d pos:%d\n", run_count, run_index, run_mode, x, y, (int)put_bits_count(&s->pb));
+
+ if(run_mode == 0)
+ put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
+ }
+ }
+ if(run_mode){
+ while(run_count >= 1<<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;
+ int_fast16_t sample_buffer[ring_size][w+6], *sample[ring_size];
+ s->run_index=0;
+
+ memset(sample_buffer, 0, sizeof(sample_buffer));
+
for(y=0; y<h; y++){
- uint8_t *temp= pred_diff[0]; //FIXME try a normal buffer
+ for(i=0; i<ring_size; i++)
+ sample[i]= sample_buffer[(h+i-y)%ring_size]+3;
+
+ sample[0][-1]= sample[1][0 ];
+ sample[1][ w]= sample[1][w-1];
+//{START_TIMER
+ if(s->avctx->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{
+ for(x=0; x<w; x++){
+ sample[0][x]= ((uint16_t*)(src + stride*y))[x] >> (16 - s->avctx->bits_per_raw_sample);
+ }
+ encode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample);
+ }
+//STOP_TIMER("encode line")}
+ }
+}
+
+static void encode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, int stride){
+ int x, y, p, i;
+ const int ring_size= s->avctx->context_model ? 3 : 2;
+ int_fast16_t sample_buffer[3][ring_size][w+6], *sample[3][ring_size];
+ s->run_index=0;
- pred_diff[0]= pred_diff[1];
- pred_diff[1]= pred_diff[2];
- pred_diff[2]= pred_diff[3];
- pred_diff[3]= temp;
+ memset(sample_buffer, 0, sizeof(sample_buffer));
+
+ for(y=0; y<h; y++){
+ for(i=0; i<ring_size; i++)
+ for(p=0; p<3; p++)
+ sample[p][i]= sample_buffer[p][(h+i-y)%ring_size]+3;
for(x=0; x<w; x++){
- uint8_t *temp_src= src + x + stride*y;
- int diff, context, qdiff;
-
- if(p->context_count == 256)
- context= pred_diff[3+0][x-1] + 16*pred_diff[3-1][x+0];
- else
- context= pred_diff[3+0][x-1] + 16*pred_diff[3-1][x+0]
- + 16*16*to5[pred_diff[3-1][x+1]] + 16*16*5*to5[pred_diff[3-0][x-2]] + 16*16*5*5*to5[pred_diff[3-2][x+0]];
-
- diff = (int8_t)(temp_src[0] - predict(s, temp_src, stride, x, y));
-
- qdiff= p->quant_table[128+diff];
-
- put_symbol(c, p->state[context], diff, 1);
-
- pred_diff[3][x]= qdiff;
+ int v= src[x + stride*y];
+ int b= v&0xFF;
+ int g= (v>>8)&0xFF;
+ int r= (v>>16)&0xFF;
+
+ b -= g;
+ r -= g;
+ g += (b + r)>>2;
+ b += 0x100;
+ r += 0x100;
+
+// assert(g>=0 && b>=0 && r>=0);
+// assert(g<256 && b<512 && r<512);
+ sample[0][0][x]= g;
+ sample[1][0][x]= b;
+ sample[2][0][x]= r;
+ }
+ for(p=0; p<3; p++){
+ sample[p][0][-1]= sample[p][1][0 ];
+ sample[p][1][ w]= sample[p][1][w-1];
+ encode_line(s, w, sample[p], FFMIN(p, 1), 9);
}
}
}
-static void write_quant_table(CABACContext *c, uint8_t *quant_table){
+static void write_quant_table(RangeCoder *c, int16_t *quant_table){
int last=0;
int i;
- uint8_t state[CONTEXT_SIZE]={0};
+ uint8_t state[CONTEXT_SIZE];
+ memset(state, 128, sizeof(state));
- for(i=1; i<256 ; i++){
+ for(i=1; i<128 ; i++){
if(quant_table[i] != quant_table[i-1]){
put_symbol(c, state, i-last-1, 0);
last= i;
}
static void write_header(FFV1Context *f){
- uint8_t state[CONTEXT_SIZE]={0};
+ uint8_t state[CONTEXT_SIZE];
int i;
- CABACContext * const c= &f->c;
+ RangeCoder * const c= &f->c;
+
+ memset(state, 128, sizeof(state));
put_symbol(c, state, f->version, 0);
- put_symbol(c, state, 0, 0); //YUV cs type
- put_cabac(c, state, 1); //chroma planes
+ put_symbol(c, state, f->avctx->coder_type, 0);
+ put_symbol(c, state, f->colorspace, 0); //YUV cs type
+ if(f->version>0)
+ put_symbol(c, state, f->avctx->bits_per_raw_sample, 0);
+ put_rac(c, state, 1); //chroma planes
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0);
- put_cabac(c, state, 0); //no transparency plane
+ put_rac(c, state, 0); //no transparency plane
- for(i=0; i<3; i++){ //FIXME chroma & trasparency decission
- PlaneContext * const p= &f->plane[i];
-
- put_symbol(c, state, av_log2(p->context_count), 0);
- write_quant_table(c, p->quant_table);
- }
+ for(i=0; i<5; i++)
+ write_quant_table(c, f->quant_table[i]);
}
+#endif /* CONFIG_FFV1_ENCODER */
-static int common_init(AVCodecContext *avctx){
+static av_cold int common_init(AVCodecContext *avctx){
FFV1Context *s = avctx->priv_data;
- int width, height;
s->avctx= avctx;
s->flags= avctx->flags;
-
+
dsputil_init(&s->dsp, avctx);
-
- width= s->width= avctx->width;
- height= s->height= avctx->height;
-
- assert(width && height);
+
+ s->width = avctx->width;
+ s->height= avctx->height;
+
+ assert(s->width && s->height);
return 0;
}
-static int encode_init(AVCodecContext *avctx)
+#if CONFIG_FFV1_ENCODER
+static av_cold int encode_init(AVCodecContext *avctx)
{
FFV1Context *s = avctx->priv_data;
int i;
common_init(avctx);
-
+
s->version=0;
-
- s->plane_count=3;
+ s->ac= avctx->coder_type;
+
+ s->plane_count=2;
+ for(i=0; i<256; i++){
+ if(avctx->bits_per_raw_sample <=8){
+ s->quant_table[0][i]= quant11[i];
+ s->quant_table[1][i]= 11*quant11[i];
+ if(avctx->context_model==0){
+ s->quant_table[2][i]= 11*11*quant11[i];
+ s->quant_table[3][i]=
+ s->quant_table[4][i]=0;
+ }else{
+ s->quant_table[2][i]= 11*11*quant5 [i];
+ s->quant_table[3][i]= 5*11*11*quant5 [i];
+ s->quant_table[4][i]= 5*5*11*11*quant5 [i];
+ }
+ }else{
+ s->quant_table[0][i]= quant9_10bit[i];
+ s->quant_table[1][i]= 11*quant9_10bit[i];
+ if(avctx->context_model==0){
+ s->quant_table[2][i]= 11*11*quant9_10bit[i];
+ s->quant_table[3][i]=
+ s->quant_table[4][i]=0;
+ }else{
+ s->quant_table[2][i]= 11*11*quant5_10bit[i];
+ s->quant_table[3][i]= 5*11*11*quant5_10bit[i];
+ s->quant_table[4][i]= 5*5*11*11*quant5_10bit[i];
+ }
+ }
+ }
for(i=0; i<s->plane_count; i++){
PlaneContext * const p= &s->plane[i];
- memcpy(p->quant_table, default_quant_table, sizeof(uint8_t)*256);
- p->qdiff_count= DEFAULT_QDIFF_COUNT;
-
-#if 1
- p->context_count= 256;
- p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
-#else
- p->context_count= 16*16*128 /*5*5*5*/;
- p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
-#endif
+
+ if(avctx->context_model==0){
+ p->context_count= (11*11*11+1)/2;
+ }else{
+ p->context_count= (11*11*5*5*5+1)/2;
+ }
+
+ if(s->ac){
+ if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
+ }else{
+ if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
+ }
}
avctx->coded_frame= &s->picture;
switch(avctx->pix_fmt){
+ case PIX_FMT_YUV444P16:
+ case PIX_FMT_YUV422P16:
+ case PIX_FMT_YUV420P16:
+ if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
+ av_log(avctx, AV_LOG_ERROR, "More than 8 bit per component is still experimental and no gurantee is yet made for future compatibility\n"
+ "Use vstrict=-2 / -strict -2 to use it anyway.\n");
+ return -1;
+ }
+ if(avctx->bits_per_raw_sample <=8){
+ av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample inavlid\n");
+ return -1;
+ }
+ s->version= 1;
case PIX_FMT_YUV444P:
case PIX_FMT_YUV422P:
case PIX_FMT_YUV420P:
case PIX_FMT_YUV411P:
case PIX_FMT_YUV410P:
- avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
+ s->colorspace= 0;
+ break;
+ case PIX_FMT_RGB32:
+ s->colorspace= 1;
break;
default:
- fprintf(stderr, "format not supported\n");
+ av_log(avctx, AV_LOG_ERROR, "format not supported\n");
return -1;
}
-
-
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
+
s->picture_number=0;
-
+
return 0;
}
+#endif /* CONFIG_FFV1_ENCODER */
static void clear_state(FFV1Context *f){
for(i=0; i<f->plane_count; i++){
PlaneContext *p= &f->plane[i];
- p->interlace_bit_state[0]= 0;
- p->interlace_bit_state[1]= 0;
-
+ p->interlace_bit_state[0]= 128;
+ p->interlace_bit_state[1]= 128;
+
for(j=0; j<p->context_count; j++){
- memset(p->state[j], 0, sizeof(uint8_t)*CONTEXT_SIZE);
- p->state[j][7] = 2*62;
+ if(f->ac){
+ memset(p->state[j], 128, sizeof(uint8_t)*CONTEXT_SIZE);
+ }else{
+ p->vlc_state[j].drift= 0;
+ p->vlc_state[j].error_sum= 4; //FFMAX((RANGE + 32)/64, 2);
+ p->vlc_state[j].bias= 0;
+ p->vlc_state[j].count= 1;
+ }
}
}
}
+#if CONFIG_FFV1_ENCODER
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
FFV1Context *f = avctx->priv_data;
- CABACContext * const c= &f->c;
+ RangeCoder * const c= &f->c;
AVFrame *pict = data;
const int width= f->width;
const int height= f->height;
AVFrame * const p= &f->picture;
+ int used_count= 0;
+ uint8_t keystate=128;
+
+ ff_init_range_encoder(c, buf, buf_size);
+// ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
+ ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
- if(avctx->strict_std_compliance >= 0){
- printf("this codec is under development, files encoded with it wont be decodeable with future versions!!!\n"
- "use vstrict=-1 to use it anyway\n");
- return -1;
- }
-
- ff_init_cabac_encoder(c, buf, buf_size);
- ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
-
*p = *pict;
p->pict_type= FF_I_TYPE;
-
+
if(avctx->gop_size==0 || f->picture_number % avctx->gop_size == 0){
- put_cabac_bypass(c, 1);
+ put_rac(c, &keystate, 1);
p->key_frame= 1;
write_header(f);
clear_state(f);
}else{
- put_cabac_bypass(c, 0);
+ put_rac(c, &keystate, 0);
p->key_frame= 0;
}
- if(1){
+ if(!f->ac){
+ used_count += ff_rac_terminate(c);
+//printf("pos=%d\n", used_count);
+ init_put_bits(&f->pb, buf + used_count, buf_size - used_count);
+ }
+
+ if(f->colorspace==0){
const int chroma_width = -((-width )>>f->chroma_h_shift);
const int chroma_height= -((-height)>>f->chroma_v_shift);
encode_plane(f, p->data[0], width, height, p->linesize[0], 0);
encode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1);
- encode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 2);
+ encode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1);
+ }else{
+ encode_rgb_frame(f, (uint32_t*)(p->data[0]), width, height, p->linesize[0]/4);
}
emms_c();
-
+
f->picture_number++;
- return put_cabac_terminate(c, 1);
+ if(f->ac){
+ return ff_rac_terminate(c);
+ }else{
+ flush_put_bits(&f->pb); //nicer padding FIXME
+ return used_count + (put_bits_count(&f->pb)+7)/8;
+ }
}
+#endif /* CONFIG_FFV1_ENCODER */
-static void common_end(FFV1Context *s){
- int i;
+static av_cold int common_end(AVCodecContext *avctx){
+ FFV1Context *s = avctx->priv_data;
+ int i;
for(i=0; i<s->plane_count; i++){
PlaneContext *p= &s->plane[i];
av_freep(&p->state);
+ av_freep(&p->vlc_state);
}
+
+ return 0;
}
-static int encode_end(AVCodecContext *avctx)
-{
- FFV1Context *s = avctx->priv_data;
+static av_always_inline void decode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
+ PlaneContext * const p= &s->plane[plane_index];
+ RangeCoder * const c= &s->c;
+ int x;
+ int run_count=0;
+ int run_mode=0;
+ int run_index= s->run_index;
+
+ for(x=0; x<w; x++){
+ int diff, context, sign;
+
+ context= get_context(s, sample[1] + x, sample[0] + x, sample[1] + x);
+ if(context < 0){
+ context= -context;
+ sign=1;
+ }else
+ sign=0;
- common_end(s);
- return 0;
+ 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);
+
+// 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);
+ }
+ s->run_index= run_index;
}
static void decode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){
- PlaneContext * const p= &s->plane[plane_index];
- CABACContext * const c= &s->c;
- int x,y;
- uint8_t pred_diff_buffer[4][w+6];
- uint8_t *pred_diff[4]= {pred_diff_buffer[0]+3, pred_diff_buffer[1]+3, pred_diff_buffer[2]+3, pred_diff_buffer[3]+3};
-// uint8_t temp_buf[3*w], *temp= temp_buf + 3*w;
-
- memset(pred_diff_buffer, 0, sizeof(pred_diff_buffer));
-
+ int x, y;
+ int_fast16_t sample_buffer[2][w+6];
+ int_fast16_t *sample[2];
+ sample[0]=sample_buffer[0]+3;
+ sample[1]=sample_buffer[1]+3;
+
+ s->run_index=0;
+
+ memset(sample_buffer, 0, sizeof(sample_buffer));
+
for(y=0; y<h; y++){
- uint8_t *temp= pred_diff[0]; //FIXME try a normal buffer
+ int_fast16_t *temp= sample[0]; //FIXME try a normal buffer
- pred_diff[0]= pred_diff[1];
- pred_diff[1]= pred_diff[2];
- pred_diff[2]= pred_diff[3];
- pred_diff[3]= temp;
+ sample[0]= sample[1];
+ sample[1]= temp;
- for(x=0; x<w; x++){
- uint8_t *temp_src= src + x + stride*y;
- int diff, context, qdiff;
-
- if(p->context_count == 256)
- context= pred_diff[3+0][x-1] + 16*pred_diff[3-1][x+0];
- else
- context= pred_diff[3+0][x-1] + 16*pred_diff[3-1][x+0]
- + 16*16*to5[pred_diff[3-1][x+1]] + 16*16*5*to5[pred_diff[3-0][x-2]] + 16*16*5*5*to5[pred_diff[3-2][x+0]];
+ sample[1][-1]= sample[0][0 ];
+ sample[0][ w]= sample[0][w-1];
- diff= get_symbol(c, p->state[context], 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);
+ 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")}
+ }
+}
- temp_src[0] = predict(s, temp_src, stride, x, y) + diff;
-
- assert(diff>= -128 && diff <= 127);
+static void decode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, int stride){
+ int x, y, p;
+ int_fast16_t sample_buffer[3][2][w+6];
+ int_fast16_t *sample[3][2];
+ for(x=0; x<3; x++){
+ sample[x][0] = sample_buffer[x][0]+3;
+ sample[x][1] = sample_buffer[x][1]+3;
+ }
- qdiff= p->quant_table[128+diff];
+ s->run_index=0;
- pred_diff[3][x]= qdiff;
+ memset(sample_buffer, 0, sizeof(sample_buffer));
+
+ for(y=0; y<h; y++){
+ for(p=0; p<3; p++){
+ int_fast16_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];
+ decode_line(s, w, sample[p], FFMIN(p, 1), 9);
+ }
+ for(x=0; x<w; x++){
+ int g= sample[0][1][x];
+ int b= sample[1][1][x];
+ int r= sample[2][1][x];
+
+// assert(g>=0 && b>=0 && r>=0);
+// assert(g<256 && b<512 && r<512);
+
+ b -= 0x100;
+ r -= 0x100;
+ g -= (b + r)>>2;
+ b += g;
+ r += g;
+
+ src[x + stride*y]= b + (g<<8) + (r<<16);
}
}
}
-static int read_quant_table(CABACContext *c, uint8_t *quant_table){
+static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale){
int v;
int i=0;
- uint8_t state[CONTEXT_SIZE]={0};
+ uint8_t state[CONTEXT_SIZE];
+
+ memset(state, 128, sizeof(state));
- for(v=0; i<256 ; v++){
+ for(v=0; i<128 ; v++){
int len= get_symbol(c, state, 0) + 1;
- if(len + i > 256) return -1;
-
+ if(len + i > 128) return -1;
+
while(len--){
- quant_table[i++] = v;
+ quant_table[i] = scale*v;
+ i++;
//printf("%2d ",v);
//if(i%16==0) printf("\n");
}
}
-
- return v;
+
+ for(i=1; i<128; i++){
+ quant_table[256-i]= -quant_table[i];
+ }
+ quant_table[128]= -quant_table[127];
+
+ return 2*v - 1;
}
static int read_header(FFV1Context *f){
- uint8_t state[CONTEXT_SIZE]={0};
- int i;
- CABACContext * const c= &f->c;
-
+ uint8_t state[CONTEXT_SIZE];
+ int i, context_count;
+ RangeCoder * const c= &f->c;
+
+ memset(state, 128, sizeof(state));
+
f->version= get_symbol(c, state, 0);
- get_symbol(c, state, 0); //YUV cs type
- get_cabac(c, state); //no chroma = false
+ f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
+ 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);
+ get_rac(c, state); //no chroma = false
f->chroma_h_shift= get_symbol(c, state, 0);
f->chroma_v_shift= get_symbol(c, state, 0);
- get_cabac(c, state); //transparency plane
- f->plane_count= 3;
-
+ get_rac(c, state); //transparency plane
+ f->plane_count= 2;
+
+ if(f->colorspace==0){
+ if(f->avctx->bits_per_raw_sample<=8){
+ switch(16*f->chroma_h_shift + f->chroma_v_shift){
+ case 0x00: f->avctx->pix_fmt= PIX_FMT_YUV444P; break;
+ case 0x10: f->avctx->pix_fmt= PIX_FMT_YUV422P; break;
+ case 0x11: f->avctx->pix_fmt= PIX_FMT_YUV420P; break;
+ case 0x20: f->avctx->pix_fmt= PIX_FMT_YUV411P; break;
+ case 0x22: f->avctx->pix_fmt= PIX_FMT_YUV410P; break;
+ default:
+ av_log(f->avctx, AV_LOG_ERROR, "format not supported\n");
+ return -1;
+ }
+ }else{
+ 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;
+ }
+ f->avctx->pix_fmt= PIX_FMT_RGB32;
+ }else{
+ av_log(f->avctx, AV_LOG_ERROR, "colorspace not supported\n");
+ return -1;
+ }
+
+//printf("%d %d %d\n", f->chroma_h_shift, f->chroma_v_shift,f->avctx->pix_fmt);
+
+ context_count=1;
+ for(i=0; i<5; i++){
+ context_count*= read_quant_table(c, f->quant_table[i], context_count);
+ if(context_count < 0 || context_count > 32768){
+ av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
+ return -1;
+ }
+ }
+ context_count= (context_count+1)/2;
+
for(i=0; i<f->plane_count; i++){
PlaneContext * const p= &f->plane[i];
- p->context_count= 1<<get_symbol(c, state, 0);
- p->qdiff_count= read_quant_table(c, p->quant_table);
- if(p->qdiff_count < 0) return -1;
-
- if(!p->state)
- p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
+ p->context_count= context_count;
+
+ if(f->ac){
+ if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
+ }else{
+ if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
+ }
}
-
+
return 0;
}
-static int decode_init(AVCodecContext *avctx)
+static av_cold int decode_init(AVCodecContext *avctx)
{
- FFV1Context *s = avctx->priv_data;
+// FFV1Context *s = avctx->priv_data;
common_init(avctx);
-
-#if 0
- switch(s->bitstream_bpp){
- case 12:
- avctx->pix_fmt = PIX_FMT_YUV420P;
- break;
- case 16:
- avctx->pix_fmt = PIX_FMT_YUV422P;
- break;
- case 24:
- case 32:
- if(s->bgr32){
- avctx->pix_fmt = PIX_FMT_RGBA32;
- }else{
- avctx->pix_fmt = PIX_FMT_BGR24;
- }
- break;
- default:
- assert(0);
- }
-#endif
-
+
return 0;
}
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size){
+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;
- CABACContext * const c= &f->c;
+ RangeCoder * const c= &f->c;
const int width= f->width;
const int height= f->height;
AVFrame * const p= &f->picture;
int bytes_read;
+ uint8_t keystate= 128;
AVFrame *picture = data;
- *data_size = 0;
-
- /* no supplementary picture */
- if (buf_size == 0)
- return 0;
-
- ff_init_cabac_decoder(c, buf, buf_size);
- ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
+ ff_init_range_decoder(c, buf, buf_size);
+ ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
- p->reference= 0;
- if(avctx->get_buffer(avctx, p) < 0){
- fprintf(stderr, "get_buffer() failed\n");
- return -1;
- }
p->pict_type= FF_I_TYPE; //FIXME I vs. P
- if(get_cabac_bypass(c)){
+ if(get_rac(c, &keystate)){
p->key_frame= 1;
- read_header(f);
+ if(read_header(f) < 0)
+ return -1;
clear_state(f);
}else{
p->key_frame= 0;
}
+ if(!f->plane[0].state && !f->plane[0].vlc_state)
+ return -1;
+
+ p->reference= 0;
+ if(avctx->get_buffer(avctx, p) < 0){
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return -1;
+ }
+
if(avctx->debug&FF_DEBUG_PICT_INFO)
- printf("keyframe:%d\n", p->key_frame);
-
-
- if(1){
+ av_log(avctx, AV_LOG_ERROR, "keyframe:%d coder:%d\n", p->key_frame, f->ac);
+
+ if(!f->ac){
+ bytes_read = c->bytestream - c->bytestream_start - 1;
+ if(bytes_read ==0) av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); //FIXME
+//printf("pos=%d\n", bytes_read);
+ init_get_bits(&f->gb, buf + bytes_read, buf_size - bytes_read);
+ } else {
+ bytes_read = 0; /* avoid warning */
+ }
+
+ if(f->colorspace==0){
const int chroma_width = -((-width )>>f->chroma_h_shift);
const int chroma_height= -((-height)>>f->chroma_v_shift);
decode_plane(f, p->data[0], width, height, p->linesize[0], 0);
-
+
decode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1);
- decode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 2);
+ decode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1);
+ }else{
+ decode_rgb_frame(f, (uint32_t*)p->data[0], width, height, p->linesize[0]/4);
}
-
+
emms_c();
f->picture_number++;
*picture= *p;
-
+
avctx->release_buffer(avctx, p); //FIXME
*data_size = sizeof(AVFrame);
-
- bytes_read= get_cabac_terminate(c);
- if(bytes_read ==0) printf("error at end of frame\n");
-
- return bytes_read;
-}
-static int decode_end(AVCodecContext *avctx)
-{
- FFV1Context *s = avctx->priv_data;
- int i;
-
- if(avctx->get_buffer == avcodec_default_get_buffer){
- for(i=0; i<4; i++){
- av_freep(&s->picture.base[i]);
- s->picture.data[i]= NULL;
- }
- av_freep(&s->picture.opaque);
+ if(f->ac){
+ bytes_read= c->bytestream - c->bytestream_start - 1;
+ if(bytes_read ==0) av_log(f->avctx, AV_LOG_ERROR, "error at end of frame\n");
+ }else{
+ bytes_read+= (get_bits_count(&f->gb)+7)/8;
}
- return 0;
+ return bytes_read;
}
AVCodec ffv1_decoder = {
sizeof(FFV1Context),
decode_init,
NULL,
- decode_end,
+ common_end,
decode_frame,
CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/,
- NULL
+ NULL,
+ .long_name= NULL_IF_CONFIG_SMALL("FFmpeg codec #1"),
};
+#if CONFIG_FFV1_ENCODER
AVCodec ffv1_encoder = {
"ffv1",
CODEC_TYPE_VIDEO,
sizeof(FFV1Context),
encode_init,
encode_frame,
- encode_end,
+ common_end,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_RGB32, PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, PIX_FMT_YUV444P16, PIX_FMT_NONE},
+ .long_name= NULL_IF_CONFIG_SMALL("FFmpeg codec #1"),
};
+#endif
projects / frescor / ffmpeg.git / blobdiff