/*
* huffyuv codec for libavcodec
*
- * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
* the algorithm used
*/
+
+/**
+ * @file huffyuv.c
+ * huffyuv codec for libavcodec.
+ */
#include "common.h"
#include "avcodec.h"
#include "dsputil.h"
-#ifndef MAX_INT64
-#define MAX_INT64 9223372036854775807LL
+#ifndef INT64_MAX
+#define INT64_MAX 9223372036854775807LL
#endif
#define VLC_BITS 11
-
+
typedef enum Predictor{
LEFT= 0,
PLANE,
int width, height;
int flags;
int picture_number;
- int linesize[3];
+ int last_slice_end;
uint8_t __align8 temp[3][2500];
uint64_t stats[3][256];
uint8_t len[3][256];
uint32_t bits[3][256];
VLC vlc[3];
- uint8_t __align8 *picture[3];
+ AVFrame picture;
uint8_t __align8 bitstream_buffer[1024*1024*3]; //FIXME dynamic alloc or some other solution
DSPContext dsp;
}HYuvContext;
+static const unsigned char classic_shift_luma[] = {
+ 34,36,35,69,135,232,9,16,10,24,11,23,12,16,13,10,14,8,15,8,
+ 16,8,17,20,16,10,207,206,205,236,11,8,10,21,9,23,8,8,199,70,
+ 69,68, 0
+};
+
+static const unsigned char classic_shift_chroma[] = {
+ 66,36,37,38,39,40,41,75,76,77,110,239,144,81,82,83,84,85,118,183,
+ 56,57,88,89,56,89,154,57,58,57,26,141,57,56,58,57,58,57,184,119,
+ 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0
+};
+
+static const unsigned char classic_add_luma[256] = {
+ 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37,
+ 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36,
+ 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36,
+ 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39,
+ 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37,
+ 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29,
+ 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16,
+ 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14,
+ 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6,
+ 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15,
+ 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25,
+ 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49,
+ 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60,
+ 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52,
+ 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43,
+ 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8,
+};
+
+static const unsigned char classic_add_chroma[256] = {
+ 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9,
+ 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7,
+ 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77,
+ 43, 45, 76, 81, 46, 82, 75, 55, 56,144, 58, 80, 60, 74,147, 63,
+ 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22,
+ 17, 14, 5, 6,100, 54, 47, 50, 51, 53,106,107,108,109,110,111,
+ 112,113,114,115, 4,117,118, 92, 94,121,122, 3,124,103, 2, 1,
+ 0,129,130,131,120,119,126,125,136,137,138,139,140,141,142,134,
+ 135,132,133,104, 64,101, 62, 57,102, 95, 93, 59, 61, 28, 97, 96,
+ 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41,
+ 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36,
+ 7,128,127,105,123,116, 35, 34, 33,145, 31, 79, 42,146, 78, 26,
+ 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13,
+ 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8,
+ 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2,
+};
+
static inline void bswap_buf(uint32_t *dst, uint32_t *src, int w){
int i;
*left= l;
*left_top= lt;
}
+
+#ifdef CONFIG_ENCODERS
//FIXME optimize
static inline void sub_median_prediction(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top){
int i;
*left_top= lt;
}
+#endif //CONFIG_ENCODERS
static inline void add_left_prediction_bgr32(uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue){
int i;
*blue= b;
}
-//FIXME optimize
-static inline int sub_left_prediction(uint8_t *dst, uint8_t *src, int w, int left){
+#ifdef CONFIG_ENCODERS
+static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int left){
int i;
- for(i=0; i<w; i++){
- const int temp= src[i];
- dst[i]= temp - left;
- left= temp;
+ if(w<32){
+ for(i=0; i<w; i++){
+ const int temp= src[i];
+ dst[i]= temp - left;
+ left= temp;
+ }
+ return left;
+ }else{
+ for(i=0; i<16; i++){
+ const int temp= src[i];
+ dst[i]= temp - left;
+ left= temp;
+ }
+ s->dsp.diff_bytes(dst+16, src+16, src+15, w-16);
+ return src[w-1];
}
- return left;
}
-
+#endif //CONFIG_ENCODERS
static void read_len_table(uint8_t *dst, GetBitContext *gb){
int i, val, repeat;
return 0;
}
+#ifdef CONFIG_ENCODERS
+
static void generate_len_table(uint8_t *dst, uint64_t *stats, int size){
uint64_t counts[2*size];
int up[2*size];
counts[next]= min1 + min2;
counts[min1_i]=
- counts[min2_i]= MAX_INT64;
+ counts[min2_i]= INT64_MAX;
up[min1_i]=
up[min2_i]= next;
up[next]= -1;
}
}
+#endif //CONFIG_ENCODERS
+
static int read_huffman_tables(HYuvContext *s, uint8_t *src, int length){
GetBitContext gb;
int i;
- init_get_bits(&gb, src, length);
+ init_get_bits(&gb, src, length*8);
for(i=0; i<3; i++){
read_len_table(s->len[i], &gb);
}
static int read_old_huffman_tables(HYuvContext *s){
-#if 0
+#if 1
GetBitContext gb;
int i;
- init_get_bits(&gb, classic_shift_luma, sizeof(classic_shift_luma));
+ init_get_bits(&gb, classic_shift_luma, sizeof(classic_shift_luma)*8);
read_len_table(s->len[0], &gb);
- init_get_bits(&gb, classic_shift_chroma, sizeof(classic_shift_chroma));
+ init_get_bits(&gb, classic_shift_chroma, sizeof(classic_shift_chroma)*8);
read_len_table(s->len[1], &gb);
for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i];
static int decode_init(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
- int width, height, y_size, c_size, stride;
+ int width, height;
s->avctx= avctx;
s->flags= avctx->flags;
- dsputil_init(&s->dsp, avctx->dsp_mask);
+ dsputil_init(&s->dsp, avctx);
width= s->width= avctx->width;
height= s->height= avctx->height;
+ avctx->coded_frame= &s->picture;
+
s->bgr32=1;
assert(width && height);
//if(avctx->extradata)
// printf("extradata:%X, extradata_size:%d\n", *(uint32_t*)avctx->extradata, avctx->extradata_size);
if(avctx->extradata_size){
- if(avctx->bits_per_sample&7)
+ if((avctx->bits_per_sample&7) && avctx->bits_per_sample != 12)
s->version=1; // do such files exist at all?
else
s->version=2;
s->interlaced= height > 288;
- c_size= 0;
switch(s->bitstream_bpp){
case 12:
avctx->pix_fmt = PIX_FMT_YUV420P;
- stride= (width+15)&~15;
- c_size= height*stride/4;
break;
case 16:
if(s->yuy2){
avctx->pix_fmt = PIX_FMT_YUV422;
- stride= (width*2+15)&~15;
}else{
avctx->pix_fmt = PIX_FMT_YUV422P;
- stride= (width+15)&~15;
- c_size= height*stride/2;
}
break;
case 24:
case 32:
if(s->bgr32){
- avctx->pix_fmt = PIX_FMT_BGRA32;
- stride= (width*4+15)&~15;
+ avctx->pix_fmt = PIX_FMT_RGBA32;
}else{
avctx->pix_fmt = PIX_FMT_BGR24;
- stride= (width*3+15)&~15;
}
break;
default:
assert(0);
- stride=0; //gcc fix
- }
-
- y_size= height*stride;
-
- s->linesize[0]= stride;
- s->picture[0]= av_mallocz(y_size);
-
- if(c_size){
- s->picture[1]= av_mallocz(c_size);
- s->picture[2]= av_mallocz(c_size);
- s->linesize[1]= s->linesize[2]= stride/2;
-
- memset(s->picture[1], 128, c_size);
- memset(s->picture[2], 128, c_size);
}
// printf("pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced);
return 0;
}
+#ifdef CONFIG_ENCODERS
+
static void store_table(HYuvContext *s, uint8_t *len){
int i;
int index= s->avctx->extradata_size;
s->avctx= avctx;
s->flags= avctx->flags;
- dsputil_init(&s->dsp, avctx->dsp_mask);
+ dsputil_init(&s->dsp, avctx);
width= s->width= avctx->width;
height= s->height= avctx->height;
avctx->stats_out= av_mallocz(1024*10);
s->version=2;
+ avctx->coded_frame= &s->picture;
+
switch(avctx->pix_fmt){
+ case PIX_FMT_YUV420P:
+ if(avctx->strict_std_compliance>=0){
+ fprintf(stderr, "YV12-huffyuv is experimental, there WILL be no compatbility! (use (v)strict=-1)\n");
+ return -1;
+ }
+ s->bitstream_bpp= 12;
+ break;
case PIX_FMT_YUV422P:
s->bitstream_bpp= 16;
break;
s->stats[i][j]= 0;
s->interlaced= height > 288;
-
+
// printf("pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced);
-
+
s->picture_number=0;
-
+
return 0;
}
+#endif //CONFIG_ENCODERS
+
static void decode_422_bitstream(HYuvContext *s, int count){
int i;
-
+
count/=2;
for(i=0; i<count; i++){
}
}
+static void decode_gray_bitstream(HYuvContext *s, int count){
+ int i;
+
+ count/=2;
+
+ for(i=0; i<count; i++){
+ s->temp[0][2*i ]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
+ s->temp[0][2*i+1]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
+ }
+}
+
+#ifdef CONFIG_ENCODERS
+
static void encode_422_bitstream(HYuvContext *s, int count){
int i;
}
}
-static void decode_bgr_bitstream(HYuvContext *s, int count){
+static void encode_gray_bitstream(HYuvContext *s, int count){
int i;
+ count/=2;
+ if(s->flags&CODEC_FLAG_PASS1){
+ for(i=0; i<count; i++){
+ s->stats[0][ s->temp[0][2*i ] ]++;
+ s->stats[0][ s->temp[0][2*i+1] ]++;
+ }
+ }else{
+ for(i=0; i<count; i++){
+ put_bits(&s->pb, s->len[0][ s->temp[0][2*i ] ], s->bits[0][ s->temp[0][2*i ] ]);
+ put_bits(&s->pb, s->len[0][ s->temp[0][2*i+1] ], s->bits[0][ s->temp[0][2*i+1] ]);
+ }
+ }
+}
+
+#endif //CONFIG_ENCODERS
+
+static void decode_bgr_bitstream(HYuvContext *s, int count){
+ int i;
+
if(s->decorrelate){
if(s->bitstream_bpp==24){
for(i=0; i<count; i++){
}
}
+static void draw_slice(HYuvContext *s, int y){
+ int h, cy;
+ uint8_t *src_ptr[3];
+
+ if(s->avctx->draw_horiz_band==NULL)
+ return;
+
+ h= y - s->last_slice_end;
+ y -= h;
+
+ if(s->bitstream_bpp==12){
+ cy= y>>1;
+ }else{
+ cy= y;
+ }
+
+ src_ptr[0] = s->picture.data[0] + s->picture.linesize[0]*y;
+ src_ptr[1] = s->picture.data[1] + s->picture.linesize[1]*cy;
+ src_ptr[2] = s->picture.data[2] + s->picture.linesize[2]*cy;
+ emms_c();
+
+ s->avctx->draw_horiz_band(s->avctx, src_ptr, s->picture.linesize[0], y, s->width, h);
+
+ s->last_slice_end= y + h;
+}
+
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size){
HYuvContext *s = avctx->priv_data;
const int width= s->width;
const int width2= s->width>>1;
const int height= s->height;
- const int fake_ystride= s->interlaced ? s->linesize[0]*2 : s->linesize[0];
- const int fake_ustride= s->interlaced ? s->linesize[1]*2 : s->linesize[1];
- const int fake_vstride= s->interlaced ? s->linesize[2]*2 : s->linesize[2];
- int i;
+ int fake_ystride, fake_ustride, fake_vstride;
+ AVFrame * const p= &s->picture;
- AVPicture *picture = data;
+ AVFrame *picture = data;
*data_size = 0;
bswap_buf((uint32_t*)s->bitstream_buffer, (uint32_t*)buf, buf_size/4);
- init_get_bits(&s->gb, s->bitstream_buffer, buf_size);
+ init_get_bits(&s->gb, s->bitstream_buffer, buf_size*8);
+
+ if(p->data[0])
+ avctx->release_buffer(avctx, p);
+
+ p->reference= 0;
+ if(avctx->get_buffer(avctx, p) < 0){
+ fprintf(stderr, "get_buffer() failed\n");
+ return -1;
+ }
+
+ fake_ystride= s->interlaced ? p->linesize[0]*2 : p->linesize[0];
+ fake_ustride= s->interlaced ? p->linesize[1]*2 : p->linesize[1];
+ fake_vstride= s->interlaced ? p->linesize[2]*2 : p->linesize[2];
+ s->last_slice_end= 0;
+
if(s->bitstream_bpp<24){
- int y;
+ int y, cy;
int lefty, leftu, leftv;
int lefttopy, lefttopu, lefttopv;
if(s->yuy2){
- s->picture[0][3]= get_bits(&s->gb, 8);
- s->picture[0][2]= get_bits(&s->gb, 8);
- s->picture[0][1]= get_bits(&s->gb, 8);
- s->picture[0][0]= get_bits(&s->gb, 8);
+ p->data[0][3]= get_bits(&s->gb, 8);
+ p->data[0][2]= get_bits(&s->gb, 8);
+ p->data[0][1]= get_bits(&s->gb, 8);
+ p->data[0][0]= get_bits(&s->gb, 8);
fprintf(stderr, "YUY2 output isnt implemenetd yet\n");
return -1;
}else{
- leftv= s->picture[2][0]= get_bits(&s->gb, 8);
- lefty= s->picture[0][1]= get_bits(&s->gb, 8);
- leftu= s->picture[1][0]= get_bits(&s->gb, 8);
- s->picture[0][0]= get_bits(&s->gb, 8);
+ leftv= p->data[2][0]= get_bits(&s->gb, 8);
+ lefty= p->data[0][1]= get_bits(&s->gb, 8);
+ leftu= p->data[1][0]= get_bits(&s->gb, 8);
+ p->data[0][0]= get_bits(&s->gb, 8);
switch(s->predictor){
case LEFT:
case PLANE:
decode_422_bitstream(s, width-2);
- lefty= add_left_prediction(s->picture[0] + 2, s->temp[0], width-2, lefty);
+ lefty= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- leftu= add_left_prediction(s->picture[1] + 1, s->temp[1], width2-1, leftu);
- leftv= add_left_prediction(s->picture[2] + 1, s->temp[2], width2-1, leftv);
+ leftu= add_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu);
+ leftv= add_left_prediction(p->data[2] + 1, s->temp[2], width2-1, leftv);
}
- for(y=1; y<s->height; y++){
+ for(cy=y=1; y<s->height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
- decode_422_bitstream(s, width);
- ydst= s->picture[0] + s->linesize[0]*y;
- udst= s->picture[1] + s->linesize[1]*y;
- vdst= s->picture[2] + s->linesize[2]*y;
+ if(s->bitstream_bpp==12){
+ decode_gray_bitstream(s, width);
+
+ ydst= p->data[0] + p->linesize[0]*y;
+ lefty= add_left_prediction(ydst, s->temp[0], width, lefty);
+ if(s->predictor == PLANE){
+ if(y>s->interlaced)
+ s->dsp.add_bytes(ydst, ydst - fake_ystride, width);
+ }
+ y++;
+ if(y>=s->height) break;
+ }
+
+ draw_slice(s, y);
+
+ ydst= p->data[0] + p->linesize[0]*y;
+ udst= p->data[1] + p->linesize[1]*cy;
+ vdst= p->data[2] + p->linesize[2]*cy;
+
+ decode_422_bitstream(s, width);
lefty= add_left_prediction(ydst, s->temp[0], width, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
leftu= add_left_prediction(udst, s->temp[1], width2, leftu);
leftv= add_left_prediction(vdst, s->temp[2], width2, leftv);
}
if(s->predictor == PLANE){
- if(y>s->interlaced){
+ if(cy>s->interlaced){
s->dsp.add_bytes(ydst, ydst - fake_ystride, width);
if(!(s->flags&CODEC_FLAG_GRAY)){
s->dsp.add_bytes(udst, udst - fake_ustride, width2);
}
}
}
+ draw_slice(s, height);
+
break;
case MEDIAN:
/* first line except first 2 pixels is left predicted */
decode_422_bitstream(s, width-2);
- lefty= add_left_prediction(s->picture[0] + 2, s->temp[0], width-2, lefty);
+ lefty= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- leftu= add_left_prediction(s->picture[1] + 1, s->temp[1], width2-1, leftu);
- leftv= add_left_prediction(s->picture[2] + 1, s->temp[2], width2-1, leftv);
+ leftu= add_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu);
+ leftv= add_left_prediction(p->data[2] + 1, s->temp[2], width2-1, leftv);
}
- y=1;
+ cy=y=1;
/* second line is left predicted for interlaced case */
if(s->interlaced){
decode_422_bitstream(s, width);
- lefty= add_left_prediction(s->picture[0] + s->linesize[0], s->temp[0], width, lefty);
+ lefty= add_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- leftu= add_left_prediction(s->picture[1] + s->linesize[2], s->temp[1], width2, leftu);
- leftv= add_left_prediction(s->picture[2] + s->linesize[1], s->temp[2], width2, leftv);
+ leftu= add_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu);
+ leftv= add_left_prediction(p->data[2] + p->linesize[1], s->temp[2], width2, leftv);
}
- y++;
+ y++; cy++;
}
/* next 4 pixels are left predicted too */
decode_422_bitstream(s, 4);
- lefty= add_left_prediction(s->picture[0] + fake_ystride, s->temp[0], 4, lefty);
+ lefty= add_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- leftu= add_left_prediction(s->picture[1] + fake_ustride, s->temp[1], 2, leftu);
- leftv= add_left_prediction(s->picture[2] + fake_vstride, s->temp[2], 2, leftv);
+ leftu= add_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu);
+ leftv= add_left_prediction(p->data[2] + fake_vstride, s->temp[2], 2, leftv);
}
/* next line except the first 4 pixels is median predicted */
- lefttopy= s->picture[0][3];
+ lefttopy= p->data[0][3];
decode_422_bitstream(s, width-4);
- add_median_prediction(s->picture[0] + fake_ystride+4, s->picture[0]+4, s->temp[0], width-4, &lefty, &lefttopy);
+ add_median_prediction(p->data[0] + fake_ystride+4, p->data[0]+4, s->temp[0], width-4, &lefty, &lefttopy);
if(!(s->flags&CODEC_FLAG_GRAY)){
- lefttopu= s->picture[1][1];
- lefttopv= s->picture[2][1];
- add_median_prediction(s->picture[1] + fake_ustride+2, s->picture[1]+2, s->temp[1], width2-2, &leftu, &lefttopu);
- add_median_prediction(s->picture[2] + fake_vstride+2, s->picture[2]+2, s->temp[2], width2-2, &leftv, &lefttopv);
+ lefttopu= p->data[1][1];
+ lefttopv= p->data[2][1];
+ add_median_prediction(p->data[1] + fake_ustride+2, p->data[1]+2, s->temp[1], width2-2, &leftu, &lefttopu);
+ add_median_prediction(p->data[2] + fake_vstride+2, p->data[2]+2, s->temp[2], width2-2, &leftv, &lefttopv);
}
- y++;
-
- for(; y<height; y++){
+ y++; cy++;
+
+ for(; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
+
+ if(s->bitstream_bpp==12){
+ while(2*cy > y){
+ decode_gray_bitstream(s, width);
+ ydst= p->data[0] + p->linesize[0]*y;
+ add_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy);
+ y++;
+ }
+ if(y>=height) break;
+ }
+ draw_slice(s, y);
+
decode_422_bitstream(s, width);
-
- ydst= s->picture[0] + s->linesize[0]*y;
- udst= s->picture[1] + s->linesize[1]*y;
- vdst= s->picture[2] + s->linesize[2]*y;
+
+ ydst= p->data[0] + p->linesize[0]*y;
+ udst= p->data[1] + p->linesize[1]*cy;
+ vdst= p->data[2] + p->linesize[2]*cy;
add_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy);
if(!(s->flags&CODEC_FLAG_GRAY)){
add_median_prediction(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv);
}
}
+
+ draw_slice(s, height);
break;
}
}
}else{
int y;
int leftr, leftg, leftb;
- const int last_line= (height-1)*s->linesize[0];
+ const int last_line= (height-1)*p->linesize[0];
if(s->bitstream_bpp==32){
- s->picture[0][last_line+3]= get_bits(&s->gb, 8);
- leftr= s->picture[0][last_line+2]= get_bits(&s->gb, 8);
- leftg= s->picture[0][last_line+1]= get_bits(&s->gb, 8);
- leftb= s->picture[0][last_line+0]= get_bits(&s->gb, 8);
+ p->data[0][last_line+3]= get_bits(&s->gb, 8);
+ leftr= p->data[0][last_line+2]= get_bits(&s->gb, 8);
+ leftg= p->data[0][last_line+1]= get_bits(&s->gb, 8);
+ leftb= p->data[0][last_line+0]= get_bits(&s->gb, 8);
}else{
- leftr= s->picture[0][last_line+2]= get_bits(&s->gb, 8);
- leftg= s->picture[0][last_line+1]= get_bits(&s->gb, 8);
- leftb= s->picture[0][last_line+0]= get_bits(&s->gb, 8);
+ leftr= p->data[0][last_line+2]= get_bits(&s->gb, 8);
+ leftg= p->data[0][last_line+1]= get_bits(&s->gb, 8);
+ leftb= p->data[0][last_line+0]= get_bits(&s->gb, 8);
skip_bits(&s->gb, 8);
}
case LEFT:
case PLANE:
decode_bgr_bitstream(s, width-1);
- add_left_prediction_bgr32(s->picture[0] + last_line+4, s->temp[0], width-1, &leftr, &leftg, &leftb);
+ add_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width-1, &leftr, &leftg, &leftb);
for(y=s->height-2; y>=0; y--){ //yes its stored upside down
decode_bgr_bitstream(s, width);
- add_left_prediction_bgr32(s->picture[0] + s->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb);
+ add_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb);
if(s->predictor == PLANE){
if((y&s->interlaced)==0){
- s->dsp.add_bytes(s->picture[0] + s->linesize[0]*y,
- s->picture[0] + s->linesize[0]*y + fake_ystride, fake_ystride);
+ s->dsp.add_bytes(p->data[0] + p->linesize[0]*y,
+ p->data[0] + p->linesize[0]*y + fake_ystride, fake_ystride);
}
}
}
+ draw_slice(s, height); // just 1 large slice as this isnt possible in reverse order
break;
default:
fprintf(stderr, "prediction type not supported!\n");
}
emms_c();
- for(i=0;i<3;i++) {
- picture->data[i] = s->picture[i];
- picture->linesize[i]= s->linesize[i];
- }
-
- *data_size = sizeof(AVPicture);
+ *picture= *p;
+ *data_size = sizeof(AVFrame);
- return (get_bits_count(&s->gb)+7)>>3;
+ return (get_bits_count(&s->gb)+31)/32*4;
}
static int decode_end(AVCodecContext *avctx)
int i;
for(i=0; i<3; i++){
- av_freep(&s->picture[i]);
free_vlc(&s->vlc[i]);
}
+
+ avcodec_default_free_buffers(avctx);
return 0;
}
+#ifdef CONFIG_ENCODERS
+
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
HYuvContext *s = avctx->priv_data;
- AVPicture *pict = data;
+ AVFrame *pict = data;
const int width= s->width;
const int width2= s->width>>1;
const int height= s->height;
const int fake_ystride= s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
const int fake_ustride= s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
const int fake_vstride= s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
+ AVFrame * const p= &s->picture;
int i, size;
init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
- for(i=0; i<3; i++){
- s->picture[i]= pict->data[i];
- s->linesize[i]= pict->linesize[i];
- }
+ *p = *pict;
+ p->pict_type= FF_I_TYPE;
+ p->key_frame= 1;
- if(avctx->pix_fmt == PIX_FMT_YUV422P){
- int lefty, leftu, leftv, y;
+ if(avctx->pix_fmt == PIX_FMT_YUV422P || avctx->pix_fmt == PIX_FMT_YUV420P){
+ int lefty, leftu, leftv, y, cy;
- put_bits(&s->pb, 8, leftv= s->picture[2][0]);
- put_bits(&s->pb, 8, lefty= s->picture[0][1]);
- put_bits(&s->pb, 8, leftu= s->picture[1][0]);
- put_bits(&s->pb, 8, s->picture[0][0]);
+ put_bits(&s->pb, 8, leftv= p->data[2][0]);
+ put_bits(&s->pb, 8, lefty= p->data[0][1]);
+ put_bits(&s->pb, 8, leftu= p->data[1][0]);
+ put_bits(&s->pb, 8, p->data[0][0]);
- lefty= sub_left_prediction(s->temp[0], s->picture[0]+2, width-2 , lefty);
- leftu= sub_left_prediction(s->temp[1], s->picture[1]+1, width2-1, leftu);
- leftv= sub_left_prediction(s->temp[2], s->picture[2]+1, width2-1, leftv);
+ lefty= sub_left_prediction(s, s->temp[0], p->data[0]+2, width-2 , lefty);
+ leftu= sub_left_prediction(s, s->temp[1], p->data[1]+1, width2-1, leftu);
+ leftv= sub_left_prediction(s, s->temp[2], p->data[2]+1, width2-1, leftv);
encode_422_bitstream(s, width-2);
if(s->predictor==MEDIAN){
int lefttopy, lefttopu, lefttopv;
- y=1;
+ cy=y=1;
if(s->interlaced){
- lefty= sub_left_prediction(s->temp[0], s->picture[0]+s->linesize[0], width , lefty);
- leftu= sub_left_prediction(s->temp[1], s->picture[1]+s->linesize[1], width2, leftu);
- leftv= sub_left_prediction(s->temp[2], s->picture[2]+s->linesize[2], width2, leftv);
+ lefty= sub_left_prediction(s, s->temp[0], p->data[0]+p->linesize[0], width , lefty);
+ leftu= sub_left_prediction(s, s->temp[1], p->data[1]+p->linesize[1], width2, leftu);
+ leftv= sub_left_prediction(s, s->temp[2], p->data[2]+p->linesize[2], width2, leftv);
encode_422_bitstream(s, width);
- y++;
+ y++; cy++;
}
- lefty= sub_left_prediction(s->temp[0], s->picture[0]+fake_ystride, 4, lefty);
- leftu= sub_left_prediction(s->temp[1], s->picture[1]+fake_ystride, 2, leftu);
- leftv= sub_left_prediction(s->temp[2], s->picture[2]+fake_ystride, 2, leftv);
+ lefty= sub_left_prediction(s, s->temp[0], p->data[0]+fake_ystride, 4, lefty);
+ leftu= sub_left_prediction(s, s->temp[1], p->data[1]+fake_ystride, 2, leftu);
+ leftv= sub_left_prediction(s, s->temp[2], p->data[2]+fake_ystride, 2, leftv);
encode_422_bitstream(s, 4);
-
- lefttopy= s->picture[0][3];
- lefttopu= s->picture[1][1];
- lefttopv= s->picture[2][1];
- sub_median_prediction(s->temp[0], s->picture[0]+4, s->picture[0] + fake_ystride+4, width-4 , &lefty, &lefttopy);
- sub_median_prediction(s->temp[1], s->picture[1]+2, s->picture[1] + fake_ustride+2, width2-2, &leftu, &lefttopu);
- sub_median_prediction(s->temp[2], s->picture[2]+2, s->picture[2] + fake_vstride+2, width2-2, &leftv, &lefttopv);
+
+ lefttopy= p->data[0][3];
+ lefttopu= p->data[1][1];
+ lefttopv= p->data[2][1];
+ sub_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride+4, width-4 , &lefty, &lefttopy);
+ sub_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride+2, width2-2, &leftu, &lefttopu);
+ sub_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride+2, width2-2, &leftv, &lefttopv);
encode_422_bitstream(s, width-4);
- y++;
+ y++; cy++;
- for(; y<height; y++){
+ for(; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
- ydst= s->picture[0] + s->linesize[0]*y;
- udst= s->picture[1] + s->linesize[1]*y;
- vdst= s->picture[2] + s->linesize[2]*y;
+ if(s->bitstream_bpp==12){
+ while(2*cy > y){
+ ydst= p->data[0] + p->linesize[0]*y;
+ sub_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
+ encode_gray_bitstream(s, width);
+ y++;
+ }
+ if(y>=height) break;
+ }
+ ydst= p->data[0] + p->linesize[0]*y;
+ udst= p->data[1] + p->linesize[1]*cy;
+ vdst= p->data[2] + p->linesize[2]*cy;
sub_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
sub_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
encode_422_bitstream(s, width);
}
}else{
- for(y=1; y<height; y++){
+ for(cy=y=1; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
-
- ydst= s->picture[0] + s->linesize[0]*y;
- udst= s->picture[1] + s->linesize[1]*y;
- vdst= s->picture[2] + s->linesize[2]*y;
-
- if(s->predictor == PLANE && s->interlaced < y){
- s->dsp.diff_bytes(s->temp[0], ydst, ydst - fake_ystride, width);
- s->dsp.diff_bytes(s->temp[1], udst, udst - fake_ustride, width2);
- s->dsp.diff_bytes(s->temp[2], vdst, vdst - fake_vstride, width2);
-
- lefty= sub_left_prediction(s->temp[0], s->temp[0], width , lefty);
- leftu= sub_left_prediction(s->temp[1], s->temp[1], width2, leftu);
- leftv= sub_left_prediction(s->temp[2], s->temp[2], width2, leftv);
+
+ /* encode a luma only line & y++ */
+ if(s->bitstream_bpp==12){
+ ydst= p->data[0] + p->linesize[0]*y;
+
+ if(s->predictor == PLANE && s->interlaced < y){
+ s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
+
+ lefty= sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
+ }else{
+ lefty= sub_left_prediction(s, s->temp[0], ydst, width , lefty);
+ }
+ encode_gray_bitstream(s, width);
+ y++;
+ if(y>=height) break;
+ }
+
+ ydst= p->data[0] + p->linesize[0]*y;
+ udst= p->data[1] + p->linesize[1]*cy;
+ vdst= p->data[2] + p->linesize[2]*cy;
+
+ if(s->predictor == PLANE && s->interlaced < cy){
+ s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
+ s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
+ s->dsp.diff_bytes(s->temp[3], vdst, vdst - fake_vstride, width2);
+
+ lefty= sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
+ leftu= sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
+ leftv= sub_left_prediction(s, s->temp[2], s->temp[3], width2, leftv);
}else{
- lefty= sub_left_prediction(s->temp[0], ydst, width , lefty);
- leftu= sub_left_prediction(s->temp[1], udst, width2, leftu);
- leftv= sub_left_prediction(s->temp[2], vdst, width2, leftv);
+ lefty= sub_left_prediction(s, s->temp[0], ydst, width , lefty);
+ leftu= sub_left_prediction(s, s->temp[1], udst, width2, leftu);
+ leftv= sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
}
encode_422_bitstream(s, width);
p++;
}
}else{
+ flush_put_bits(&s->pb);
bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
}
- avctx->key_frame= 1;
- avctx->pict_type= I_TYPE;
-
s->picture_number++;
-
+
return size*4;
}
return 0;
}
+#endif //CONFIG_ENCODERS
+
+static const AVOption huffyuv_options[] =
+{
+ AVOPTION_CODEC_INT("prediction_method", "prediction_method", prediction_method, 0, 2, 0),
+ AVOPTION_END()
+};
+
AVCodec huffyuv_decoder = {
"huffyuv",
CODEC_TYPE_VIDEO,
NULL,
decode_end,
decode_frame,
- 0,
+ CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND,
NULL
};
+#ifdef CONFIG_ENCODERS
+
AVCodec huffyuv_encoder = {
"huffyuv",
CODEC_TYPE_VIDEO,
encode_init,
encode_frame,
encode_end,
+ .options = huffyuv_options,
};
+
+#endif //CONFIG_ENCODERS
\ No newline at end of file
projects / ffmpeg / blobdiff