*
* Copyright (c) 2002-2003 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
*
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
- * the algorithm used
+ * the algorithm used
*/
-
+
/**
* @file huffyuv.c
* huffyuv codec for libavcodec.
*/
#include "common.h"
+#include "bitstream.h"
#include "avcodec.h"
#include "dsputil.h"
PLANE,
MEDIAN,
} Predictor;
-
+
typedef struct HYuvContext{
AVCodecContext *avctx;
Predictor predictor;
int context;
int picture_number;
int last_slice_end;
- uint8_t __align8 temp[3][2560];
+ uint8_t *temp[3];
uint64_t stats[3][256];
uint8_t len[3][256];
uint32_t bits[3][256];
VLC vlc[3];
AVFrame picture;
- uint8_t __align8 bitstream_buffer[1024*1024*3]; //FIXME dynamic alloc or some other solution
- DSPContext dsp;
+ uint8_t *bitstream_buffer;
+ unsigned int bitstream_buffer_size;
+ DSPContext dsp;
}HYuvContext;
static const unsigned char classic_shift_luma[] = {
l= mid_pred(l, src1[i], (l + src1[i] - lt)&0xFF) + diff[i];
lt= src1[i];
dst[i]= l;
- }
+ }
*left= l;
*left_top= lt;
b+= src[4*i+B];
g+= src[4*i+G];
r+= src[4*i+R];
-
+
dst[4*i+B]= b;
dst[4*i+G]= g;
dst[4*i+R]= r;
static void read_len_table(uint8_t *dst, GetBitContext *gb){
int i, val, repeat;
-
+
for(i=0; i<256;){
repeat= get_bits(gb, 3);
val = get_bits(gb, 5);
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];
int offset, i, next;
-
+
for(offset=1; ; offset<<=1){
for(i=0; i<size; i++){
counts[i]= stats[i] + offset - 1;
}
-
+
for(next=size; next<size*2; next++){
uint64_t min1, min2;
int min1_i, min2_i;
-
+
min1=min2= INT64_MAX;
min1_i= min2_i=-1;
-
+
for(i=0; i<next; i++){
if(min2 > counts[i]){
if(min1 > counts[i]){
}
}
}
-
+
if(min2==INT64_MAX) break;
-
+
counts[next]= min1 + min2;
counts[min1_i]=
counts[min2_i]= INT64_MAX;
up[min2_i]= next;
up[next]= -1;
}
-
+
for(i=0; i<size; i++){
int len;
int index=i;
-
+
for(len=0; up[index] != -1; len++)
index= up[index];
-
+
if(len >= 32) break;
-
+
dst[i]= len;
}
if(i==size) break;
}
}
+#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*8);
-
+
for(i=0; i<3; i++){
read_len_table(s->len[i], &gb);
-
+
if(generate_bits_table(s->bits[i], s->len[i])<0){
return -1;
}
free_vlc(&s->vlc[i]);
init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, s->bits[i], 4, 4, 0);
}
-
+
return (get_bits_count(&gb)+7)/8;
}
read_len_table(s->len[0], &gb);
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];
for(i=0; i<256; i++) s->bits[1][i] = classic_add_chroma[i];
}
memcpy(s->bits[2], s->bits[1], 256*sizeof(uint32_t));
memcpy(s->len[2] , s->len [1], 256*sizeof(uint8_t));
-
+
for(i=0; i<3; i++){
free_vlc(&s->vlc[i]);
init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, s->bits[i], 4, 4, 0);
}
-
+
return 0;
#else
- fprintf(stderr, "v1 huffyuv is not supported \n");
+ av_log(s->avctx, AV_LOG_DEBUG, "v1 huffyuv is not supported \n");
return -1;
#endif
}
-static int decode_init(AVCodecContext *avctx)
-{
+static void alloc_temp(HYuvContext *s){
+ int i;
+
+ if(s->bitstream_bpp<24){
+ for(i=0; i<3; i++){
+ s->temp[i]= av_malloc(s->width + 16);
+ }
+ }else{
+ s->temp[0]= av_malloc(4*s->width + 16);
+ }
+}
+
+static int common_init(AVCodecContext *avctx){
HYuvContext *s = avctx->priv_data;
- int width, height;
s->avctx= avctx;
s->flags= avctx->flags;
-
+
dsputil_init(&s->dsp, avctx);
+
+ s->width= avctx->width;
+ s->height= avctx->height;
+ assert(s->width>0 && s->height>0);
+
+ return 0;
+}
+
+#ifdef CONFIG_DECODERS
+static int decode_init(AVCodecContext *avctx)
+{
+ HYuvContext *s = avctx->priv_data;
+
+ common_init(avctx);
memset(s->vlc, 0, 3*sizeof(VLC));
-
- width= s->width= avctx->width;
- height= s->height= avctx->height;
+
avctx->coded_frame= &s->picture;
+ s->interlaced= s->height > 288;
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){
s->version=2;
}else
s->version=0;
-
+
if(s->version==2){
- int method;
+ int method, interlace;
method= ((uint8_t*)avctx->extradata)[0];
s->decorrelate= method&64 ? 1 : 0;
s->predictor= method&63;
s->bitstream_bpp= ((uint8_t*)avctx->extradata)[1];
- if(s->bitstream_bpp==0)
+ if(s->bitstream_bpp==0)
s->bitstream_bpp= avctx->bits_per_sample&~7;
+ interlace= (((uint8_t*)avctx->extradata)[2] & 0x30) >> 4;
+ s->interlaced= (interlace==1) ? 1 : (interlace==2) ? 0 : s->interlaced;
s->context= ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0;
-
+
if(read_huffman_tables(s, ((uint8_t*)avctx->extradata)+4, avctx->extradata_size) < 0)
return -1;
}else{
}
s->bitstream_bpp= avctx->bits_per_sample & ~7;
s->context= 0;
-
+
if(read_old_huffman_tables(s) < 0)
return -1;
}
-
- if(((uint8_t*)avctx->extradata)[2] & 0x20)
- s->interlaced= ((uint8_t*)avctx->extradata)[2] & 0x10 ? 1 : 0;
- else
- s->interlaced= height > 288;
-
+
switch(s->bitstream_bpp){
case 12:
avctx->pix_fmt = PIX_FMT_YUV420P;
default:
assert(0);
}
-
+
+ alloc_temp(s);
+
// av_log(NULL, AV_LOG_DEBUG, "pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced);
return 0;
}
+#endif
+#ifdef CONFIG_ENCODERS
static int store_table(HYuvContext *s, uint8_t *len, uint8_t *buf){
int i;
int index= 0;
for(i=0; i<256;){
int val= len[i];
int repeat=0;
-
+
for(; i<256 && len[i]==val && repeat<255; i++)
repeat++;
-
+
assert(val < 32 && val >0 && repeat<256 && repeat>0);
if(repeat>7){
buf[index++]= val;
buf[index++]= val | (repeat<<5);
}
}
-
+
return index;
}
static int encode_init(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
- int i, j, width, height;
+ int i, j;
- 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);
-
- avctx->extradata= av_mallocz(1024*30);
- avctx->stats_out= av_mallocz(1024*30);
+ common_init(avctx);
+
+ avctx->extradata= av_mallocz(1024*30); // 256*3+4 == 772
+ avctx->stats_out= av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
s->version=2;
-
+
avctx->coded_frame= &s->picture;
-
+
switch(avctx->pix_fmt){
case PIX_FMT_YUV420P:
s->bitstream_bpp= 12;
return -1;
}
}else s->context= 0;
-
+
if(avctx->codec->id==CODEC_ID_HUFFYUV){
if(avctx->pix_fmt==PIX_FMT_YUV420P){
av_log(avctx, AV_LOG_ERROR, "Error: YV12 is not supported by huffyuv; use vcodec=ffvhuff or format=422p\n");
av_log(avctx, AV_LOG_ERROR, "Error: per-frame huffman tables are not supported by huffyuv; use vcodec=ffvhuff\n");
return -1;
}
- if(s->interlaced != ( height > 288 ))
+ if(s->interlaced != ( s->height > 288 ))
av_log(avctx, AV_LOG_INFO, "using huffyuv 2.2.0 or newer interlacing flag\n");
- }else if(avctx->strict_std_compliance>=0){
- av_log(avctx, AV_LOG_ERROR, "This codec is under development; files encoded with it may not be decodeable with future versions!!! Set vstrict=-1 to use it anyway.\n");
- return -1;
}
-
+
((uint8_t*)avctx->extradata)[0]= s->predictor;
((uint8_t*)avctx->extradata)[1]= s->bitstream_bpp;
- ((uint8_t*)avctx->extradata)[2]= 0x20 | (s->interlaced ? 0x10 : 0);
+ ((uint8_t*)avctx->extradata)[2]= s->interlaced ? 0x10 : 0x20;
if(s->context)
((uint8_t*)avctx->extradata)[2]|= 0x40;
((uint8_t*)avctx->extradata)[3]= 0;
s->avctx->extradata_size= 4;
-
+
if(avctx->stats_in){
char *p= avctx->stats_in;
-
+
for(i=0; i<3; i++)
for(j=0; j<256; j++)
s->stats[i][j]= 1;
s->stats[i][j]+= strtol(p, &next, 0);
if(next==p) return -1;
p=next;
- }
+ }
}
if(p[0]==0 || p[1]==0 || p[2]==0) break;
}
for(i=0; i<3; i++)
for(j=0; j<256; j++){
int d= FFMIN(j, 256-j);
-
+
s->stats[i][j]= 100000000/(d+1);
}
}
-
+
for(i=0; i<3; i++){
generate_len_table(s->len[i], s->stats[i], 256);
if(generate_bits_table(s->bits[i], s->len[i])<0){
return -1;
}
-
+
s->avctx->extradata_size+=
store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]);
}
if(s->context){
for(i=0; i<3; i++){
- int pels = width*height / (i?40:10);
+ int pels = s->width*s->height / (i?40:10);
for(j=0; j<256; j++){
int d= FFMIN(j, 256-j);
s->stats[i][j]= pels/(d+1);
for(j=0; j<256; j++)
s->stats[i][j]= 0;
}
-
+
// printf("pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced);
+ alloc_temp(s);
+
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++){
- s->temp[0][2*i ]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
- s->temp[1][ i ]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
- s->temp[0][2*i+1]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
- s->temp[2][ i ]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
+ s->temp[0][2*i ]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
+ s->temp[1][ i ]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
+ s->temp[0][2*i+1]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
+ s->temp[2][ i ]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
}
}
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);
+ 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);
}
}
-static void encode_422_bitstream(HYuvContext *s, int count){
+#ifdef CONFIG_ENCODERS
+static int encode_422_bitstream(HYuvContext *s, int count){
int i;
-
+
+ if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 2*4*count){
+ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+ return -1;
+ }
+
count/=2;
if(s->flags&CODEC_FLAG_PASS1){
for(i=0; i<count; i++){
s->stats[0][ s->temp[0][2*i+1] ]++;
s->stats[2][ s->temp[2][ i ] ]++;
}
- }else if(s->context){
+ }
+ if(s->avctx->flags2&CODEC_FLAG2_NO_OUTPUT)
+ return 0;
+ if(s->context){
for(i=0; i<count; i++){
s->stats[0][ s->temp[0][2*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[2][ s->temp[2][ i ] ], s->bits[2][ s->temp[2][ i ] ]);
}
}
+ return 0;
}
-static void encode_gray_bitstream(HYuvContext *s, int count){
+static int encode_gray_bitstream(HYuvContext *s, int count){
int i;
-
+
+ if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 4*count){
+ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+ return -1;
+ }
+
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 if(s->context){
+ }
+ if(s->avctx->flags2&CODEC_FLAG2_NO_OUTPUT)
+ return 0;
+
+ if(s->context){
for(i=0; i<count; i++){
s->stats[0][ s->temp[0][2*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] ]);
}
}
+ return 0;
}
+#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++){
- s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
+ s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
s->temp[0][4*i+B]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) + s->temp[0][4*i+G];
s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + s->temp[0][4*i+G];
}
}else{
for(i=0; i<count; i++){
- s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
+ s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
s->temp[0][4*i+B]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) + s->temp[0][4*i+G];
- s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + s->temp[0][4*i+G];
+ s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + s->temp[0][4*i+G];
get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); //?!
}
}
if(s->bitstream_bpp==24){
for(i=0; i<count; i++){
s->temp[0][4*i+B]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
- s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
- s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
+ s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
+ s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
}
}else{
for(i=0; i<count; i++){
s->temp[0][4*i+B]= get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);
- s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
- s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
+ s->temp[0][4*i+G]= get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3);
+ s->temp[0][4*i+R]= get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); //?!
}
}
}
}
+#ifdef CONFIG_DECODERS
static void draw_slice(HYuvContext *s, int y){
int h, cy;
int offset[4];
-
- if(s->avctx->draw_horiz_band==NULL)
+
+ 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{
emms_c();
s->avctx->draw_horiz_band(s->avctx, &s->picture, offset, y, 3, h);
-
+
s->last_slice_end= y + h;
}
AVFrame *picture = data;
- /* no supplementary picture */
- if (buf_size == 0)
- return 0;
+ s->bitstream_buffer= av_fast_realloc(s->bitstream_buffer, &s->bitstream_buffer_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, (uint32_t*)buf, buf_size/4);
-
+
if(p->data[0])
avctx->release_buffer(avctx, p);
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
-
+
if(s->context){
table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size);
if(table_size < 0)
return -1;
}
+ if((unsigned)(buf_size-table_size) >= INT_MAX/8)
+ return -1;
+
init_get_bits(&s->gb, s->bitstream_buffer+table_size, (buf_size-table_size)*8);
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, cy;
int lefty, leftu, leftv;
int lefttopy, lefttopu, lefttopv;
-
+
if(s->yuy2){
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);
-
- av_log(avctx, AV_LOG_ERROR, "YUY2 output isnt implemenetd yet\n");
+
+ av_log(avctx, AV_LOG_ERROR, "YUY2 output is not implemented yet\n");
return -1;
}else{
-
+
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:
for(cy=y=1; y<s->height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
-
+
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);
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)){
}
}
draw_slice(s, height);
-
+
break;
case MEDIAN:
/* first line except first 2 pixels is left predicted */
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);
}
-
+
cy=y=1;
-
+
/* second line is left predicted for interlaced case */
if(s->interlaced){
decode_422_bitstream(s, width);
add_median_prediction(p->data[2] + fake_vstride+2, p->data[2]+2, s->temp[2], width2-2, &leftv, &lefttopv);
}
y++; cy++;
-
+
for(; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
int y;
int leftr, leftg, leftb;
const int last_line= (height-1)*p->linesize[0];
-
+
if(s->bitstream_bpp==32){
skip_bits(&s->gb, 8);
leftr= p->data[0][last_line+R]= get_bits(&s->gb, 8);
leftb= p->data[0][last_line+B]= get_bits(&s->gb, 8);
skip_bits(&s->gb, 8);
}
-
+
if(s->bgr32){
switch(s->predictor){
case LEFT:
for(y=s->height-2; y>=0; y--){ //yes its stored upside down
decode_bgr_bitstream(s, width);
-
+
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 && y<s->height-1-s->interlaced){
- s->dsp.add_bytes(p->data[0] + p->linesize[0]*y,
+ 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
+ draw_slice(s, height); // just 1 large slice as this is not possible in reverse order
break;
default:
av_log(avctx, AV_LOG_ERROR, "prediction type not supported!\n");
}
}else{
- av_log(avctx, AV_LOG_ERROR, "BGR24 output isnt implemenetd yet\n");
+ av_log(avctx, AV_LOG_ERROR, "BGR24 output is not implemented yet\n");
return -1;
}
}
emms_c();
-
+
*picture= *p;
*data_size = sizeof(AVFrame);
-
- return (get_bits_count(&s->gb)+31)/32*4;
+
+ return (get_bits_count(&s->gb)+31)/32*4 + table_size;
}
+#endif
+static int common_end(HYuvContext *s){
+ int i;
+
+ for(i=0; i<3; i++){
+ av_freep(&s->temp[i]);
+ }
+ return 0;
+}
+
+#ifdef CONFIG_DECODERS
static int decode_end(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
int i;
-
+
+ common_end(s);
+ av_freep(&s->bitstream_buffer);
+
for(i=0; i<3; i++){
free_vlc(&s->vlc[i]);
}
return 0;
}
+#endif
+#ifdef CONFIG_ENCODERS
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
HYuvContext *s = avctx->priv_data;
AVFrame *pict = data;
*p = *pict;
p->pict_type= FF_I_TYPE;
p->key_frame= 1;
-
+
if(s->context){
for(i=0; i<3; i++){
generate_len_table(s->len[i], s->stats[i], 256);
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, 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;
cy=y=1;
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++; cy++;
}
-
+
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_ustride, 2, leftu);
leftv= sub_left_prediction(s, s->temp[2], p->data[2]+fake_vstride, 2, leftv);
-
+
encode_422_bitstream(s, 4);
lefttopy= p->data[0][3];
for(; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
-
+
if(s->bitstream_bpp==12){
while(2*cy > y){
ydst= p->data[0] + p->linesize[0]*y;
}else{
for(cy=y=1; y<height; y++,cy++){
uint8_t *ydst, *udst, *vdst;
-
+
/* encode a luma only line & y++ */
if(s->bitstream_bpp==12){
ydst= p->data[0] + p->linesize[0]*y;
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[2] + 1250, vdst, vdst - fake_vstride, width2);
+ s->dsp.diff_bytes(s->temp[2] + width2, 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[2] + 1250, width2, leftv);
+ leftv= sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
}else{
lefty= sub_left_prediction(s, s->temp[0], ydst, width , lefty);
leftu= sub_left_prediction(s, s->temp[1], udst, width2, leftu);
encode_422_bitstream(s, width);
}
- }
+ }
}else{
av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
}
emms_c();
-
+
size+= (put_bits_count(&s->pb)+31)/8;
size/= 4;
-
+
if((s->flags&CODEC_FLAG_PASS1) && (s->picture_number&31)==0){
int j;
char *p= avctx->stats_out;
+ char *end= p + 1024*30;
for(i=0; i<3; i++){
for(j=0; j<256; j++){
- sprintf(p, "%llu ", s->stats[i][j]);
+ snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
p+= strlen(p);
s->stats[i][j]= 0;
}
- sprintf(p, "\n");
+ snprintf(p, end-p, "\n");
p++;
}
- }else{
+ }
+ if(!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)){
flush_put_bits(&s->pb);
s->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
avctx->stats_out[0] = '\0';
}
-
+
s->picture_number++;
return size*4;
static int encode_end(AVCodecContext *avctx)
{
-// HYuvContext *s = avctx->priv_data;
+ HYuvContext *s = avctx->priv_data;
+
+ common_end(s);
av_freep(&avctx->extradata);
av_freep(&avctx->stats_out);
-
+
return 0;
}
+#endif /* CONFIG_ENCODERS */
-static const AVOption huffyuv_options[] =
-{
- AVOPTION_CODEC_INT("prediction_method", "prediction_method", prediction_method, 0, 2, 0),
- AVOPTION_END()
-};
-
-static const AVOption ffvhuff_options[] =
-{
- AVOPTION_CODEC_INT("prediction_method", "prediction_method", prediction_method, 0, 2, 0),
- AVOPTION_CODEC_INT("context_model", "context_model", context_model, 0, 2, 0),
- AVOPTION_END()
-};
-
-
+#ifdef CONFIG_DECODERS
AVCodec huffyuv_decoder = {
"huffyuv",
CODEC_TYPE_VIDEO,
CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND,
NULL
};
+#endif
#ifdef CONFIG_ENCODERS
encode_init,
encode_frame,
encode_end,
- .options = huffyuv_options,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV422P, -1},
};
AVCodec ffvhuff_encoder = {
encode_init,
encode_frame,
encode_end,
- .options = ffvhuff_options,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, -1},
};
#endif //CONFIG_ENCODERS
projects / ffmpeg / blobdiff