/*
* 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"
DSPContext dsp;
}HYuvContext;
-static inline void bswap_buf(uint32_t *dst, uint32_t *src, int w){
- int i;
-
- for(i=0; i+8<=w; i+=8){
- dst[i+0]= bswap_32(src[i+0]);
- dst[i+1]= bswap_32(src[i+1]);
- dst[i+2]= bswap_32(src[i+2]);
- dst[i+3]= bswap_32(src[i+3]);
- dst[i+4]= bswap_32(src[i+4]);
- dst[i+5]= bswap_32(src[i+5]);
- dst[i+6]= bswap_32(src[i+6]);
- dst[i+7]= bswap_32(src[i+7]);
- }
- for(;i<w; i++){
- dst[i+0]= bswap_32(src[i+0]);
- }
-}
+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 int add_left_prediction(uint8_t *dst, uint8_t *src, int w, int acc){
int i;
*left= l;
*left_top= lt;
}
+
//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;
}
-
static inline void add_left_prediction_bgr32(uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue){
int i;
int r,g,b;
uint32_t bits=0;
for(len=32; len>0; len--){
- int bit= 1<<(32-len);
for(index=0; index<256; index++){
- if(len_table[index]==len){
- if(bits & (bit-1)){
- fprintf(stderr, "Error generating huffman table\n");
- return -1;
- }
- dst[index]= bits>>(32-len);
- bits+= bit;
- }
+ if(len_table[index]==len)
+ dst[index]= bits++;
}
+ if(bits & 1){
+ fprintf(stderr, "Error generating huffman table\n");
+ return -1;
+ }
+ bits >>= 1;
}
return 0;
}
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];
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;
case 24:
case 32:
if(s->bgr32){
- avctx->pix_fmt = PIX_FMT_BGRA32;
+ avctx->pix_fmt = PIX_FMT_RGBA32;
}else{
avctx->pix_fmt = PIX_FMT_BGR24;
}
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;
s->version=2;
avctx->coded_frame= &s->picture;
- s->picture.pict_type= FF_I_TYPE;
- s->picture.key_frame= 1;
switch(avctx->pix_fmt){
case PIX_FMT_YUV420P:
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;
}
static void decode_422_bitstream(HYuvContext *s, int count){
int i;
-
+
count/=2;
for(i=0; i<count; i++){
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 *src_ptr[3];
+ uint8_t *src_ptr[3];
if(s->avctx->draw_horiz_band==NULL)
return;
if (buf_size == 0)
return 0;
- bswap_buf((uint32_t*)s->bitstream_buffer, (uint32_t*)buf, buf_size/4);
+ s->dsp.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){
emms_c();
*picture= *p;
-
- avctx->release_buffer(avctx, 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)
for(i=0; i<3; i++){
free_vlc(&s->vlc[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);
- }
+
+ avcodec_default_free_buffers(avctx);
return 0;
}
init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
*p = *pict;
+ p->pict_type= FF_I_TYPE;
+ p->key_frame= 1;
if(avctx->pix_fmt == PIX_FMT_YUV422P || avctx->pix_fmt == PIX_FMT_YUV420P){
int lefty, leftu, leftv, y, cy;
char *p= avctx->stats_out;
for(i=0; i<3; i++){
for(j=0; j<256; j++){
- sprintf(p, "%Ld ", s->stats[i][j]);
+ sprintf(p, "%llu ", s->stats[i][j]);
p+= strlen(p);
s->stats[i][j]= 0;
}
}
}else{
flush_put_bits(&s->pb);
- bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
+ s->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
}
s->picture_number++;
return 0;
}
+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
};
+#ifdef CONFIG_ENCODERS
+
AVCodec huffyuv_encoder = {
"huffyuv",
CODEC_TYPE_VIDEO,
encode_init,
encode_frame,
encode_end,
+ .options = huffyuv_options,
};
+
+#endif //CONFIG_ENCODERS
projects / ffmpeg / blobdiff