*/
/**
- * @file libavcodec/huffyuv.c
+ * @file
* huffyuv codec for libavcodec.
*/
#define B 3
#define G 2
#define R 1
+#define A 0
#else
#define B 0
#define G 1
#define R 2
+#define A 3
#endif
typedef enum Predictor{
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;
-
- for(i=0; i<w-1; i++){
- acc+= src[i];
- dst[i]= acc;
- i++;
- acc+= src[i];
- dst[i]= acc;
- }
-
- for(; i<w; i++){
- acc+= src[i];
- dst[i]= acc;
- }
-
- return acc;
-}
-
-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;
- r= *red;
- g= *green;
- b= *blue;
-
- for(i=0; i<w; i++){
- 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;
- }
-
- *red= r;
- *green= g;
- *blue= b;
-}
-
static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int left){
int i;
if(w<32){
return 0;
}
-static int generate_bits_table(uint32_t *dst, uint8_t *len_table){
+static int generate_bits_table(uint32_t *dst, const uint8_t *len_table){
int len, index;
uint32_t bits=0;
}
}
-static void generate_len_table(uint8_t *dst, uint64_t *stats, int size){
- HeapElem h[size];
- int up[2*size];
- int len[2*size];
+static void generate_len_table(uint8_t *dst, const uint64_t *stats){
+ HeapElem h[256];
+ int up[2*256];
+ int len[2*256];
int offset, i, next;
+ int size = 256;
for(offset=1; ; offset<<=1){
for(i=0; i<size; i++){
}
}
-static int read_huffman_tables(HYuvContext *s, uint8_t *src, int length){
+static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length){
GetBitContext gb;
int i;
s->temp[i]= av_malloc(s->width + 16);
}
}else{
- for(i=0; i<2; i++){
- s->temp[i]= av_malloc(4*s->width + 16);
- }
+ s->temp[0]= av_mallocz(4*s->width + 16);
}
}
if(s->version==2){
int method, interlace;
+ if (avctx->extradata_size < 4)
+ return -1;
+
method= ((uint8_t*)avctx->extradata)[0];
s->decorrelate= method&64 ? 1 : 0;
s->predictor= method&63;
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)
+ if(read_huffman_tables(s, ((uint8_t*)avctx->extradata)+4, avctx->extradata_size-4) < 0)
return -1;
}else{
switch(avctx->bits_per_coded_sample&7){
#endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */
#if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER
-static int store_table(HYuvContext *s, uint8_t *len, uint8_t *buf){
+static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf){
int i;
int index= 0;
}
for(i=0; i<3; i++){
- generate_len_table(s->len[i], s->stats[i], 256);
+ generate_len_table(s->len[i], s->stats[i]);
if(generate_bits_table(s->bits[i], s->len[i])<0){
return -1;
count/=2;
- if(count >= (s->gb.size_in_bits - get_bits_count(&s->gb))/(31*4)){
+ if(count >= (get_bits_left(&s->gb))/(31*4)){
for(i=0; i<count && get_bits_count(&s->gb) < s->gb.size_in_bits; i++){
READ_2PIX(s->temp[0][2*i ], s->temp[1][i], 1);
READ_2PIX(s->temp[0][2*i+1], s->temp[2][i], 2);
count/=2;
- if(count >= (s->gb.size_in_bits - get_bits_count(&s->gb))/(31*2)){
+ if(count >= (get_bits_left(&s->gb))/(31*2)){
for(i=0; i<count && get_bits_count(&s->gb) < s->gb.size_in_bits; i++){
READ_2PIX(s->temp[0][2*i ], s->temp[0][2*i+1], 0);
}
s->temp[0][4*i+R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
}
if(alpha)
- get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); //?!
+ s->temp[0][4*i+A] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3);
}
}
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
+ memset(s->bitstream_buffer + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, (const uint32_t*)buf, buf_size/4);
if(p->data[0])
case LEFT:
case PLANE:
decode_422_bitstream(s, width-2);
- lefty= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
+ lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- 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);
+ leftu= s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu);
+ leftv= s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2-1, leftv);
}
for(cy=y=1; y<s->height; y++,cy++){
ydst= p->data[0] + p->linesize[0]*y;
- lefty= add_left_prediction(ydst, s->temp[0], width, lefty);
+ lefty= s->dsp.add_hfyu_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);
vdst= p->data[2] + p->linesize[2]*cy;
decode_422_bitstream(s, width);
- lefty= add_left_prediction(ydst, s->temp[0], width, lefty);
+ lefty= s->dsp.add_hfyu_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);
+ leftu= s->dsp.add_hfyu_left_prediction(udst, s->temp[1], width2, leftu);
+ leftv= s->dsp.add_hfyu_left_prediction(vdst, s->temp[2], width2, leftv);
}
if(s->predictor == PLANE){
if(cy>s->interlaced){
case MEDIAN:
/* first line except first 2 pixels is left predicted */
decode_422_bitstream(s, width-2);
- lefty= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
+ lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- 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);
+ leftu= s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu);
+ leftv= s->dsp.add_hfyu_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);
- lefty= add_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty);
+ lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- 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);
+ leftu= s->dsp.add_hfyu_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu);
+ leftv= s->dsp.add_hfyu_left_prediction(p->data[2] + p->linesize[1], s->temp[2], width2, leftv);
}
y++; cy++;
}
/* next 4 pixels are left predicted too */
decode_422_bitstream(s, 4);
- lefty= add_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty);
+ lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty);
if(!(s->flags&CODEC_FLAG_GRAY)){
- 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);
+ leftu= s->dsp.add_hfyu_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu);
+ leftv= s->dsp.add_hfyu_left_prediction(p->data[2] + fake_vstride, s->temp[2], 2, leftv);
}
/* next line except the first 4 pixels is median predicted */
}
}else{
int y;
- int leftr, leftg, leftb;
+ int leftr, leftg, leftb, lefta;
const int last_line= (height-1)*p->linesize[0];
if(s->bitstream_bpp==32){
- skip_bits(&s->gb, 8);
+ lefta= p->data[0][last_line+A]= get_bits(&s->gb, 8);
leftr= p->data[0][last_line+R]= get_bits(&s->gb, 8);
leftg= p->data[0][last_line+G]= get_bits(&s->gb, 8);
leftb= p->data[0][last_line+B]= get_bits(&s->gb, 8);
leftr= p->data[0][last_line+R]= get_bits(&s->gb, 8);
leftg= p->data[0][last_line+G]= get_bits(&s->gb, 8);
leftb= p->data[0][last_line+B]= get_bits(&s->gb, 8);
+ lefta= p->data[0][last_line+A]= 255;
skip_bits(&s->gb, 8);
}
case LEFT:
case PLANE:
decode_bgr_bitstream(s, width-1);
- add_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width-1, &leftr, &leftg, &leftb);
+ s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width-1, &leftr, &leftg, &leftb, &lefta);
for(y=s->height-2; y>=0; y--){ //Yes it is 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);
+ s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb, &lefta);
if(s->predictor == PLANE){
+ if(s->bitstream_bpp!=32) lefta=0;
if((y&s->interlaced)==0 && y<s->height-1-s->interlaced){
s->dsp.add_bytes(p->data[0] + p->linesize[0]*y,
p->data[0] + p->linesize[0]*y + fake_ystride, fake_ystride);
HYuvContext *s = avctx->priv_data;
int i;
+ if (s->picture.data[0])
+ avctx->release_buffer(avctx, &s->picture);
+
common_end(s);
av_freep(&s->bitstream_buffer);
if(s->context){
for(i=0; i<3; i++){
- generate_len_table(s->len[i], s->stats[i], 256);
+ generate_len_table(s->len[i], s->stats[i]);
if(generate_bits_table(s->bits[i], s->len[i])<0)
return -1;
size+= store_table(s, s->len[i], &buf[size]);
#if CONFIG_HUFFYUV_DECODER
AVCodec huffyuv_decoder = {
"huffyuv",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_HUFFYUV,
sizeof(HYuvContext),
decode_init,
#if CONFIG_FFVHUFF_DECODER
AVCodec ffvhuff_decoder = {
"ffvhuff",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_FFVHUFF,
sizeof(HYuvContext),
decode_init,
#if CONFIG_HUFFYUV_ENCODER
AVCodec huffyuv_encoder = {
"huffyuv",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_HUFFYUV,
sizeof(HYuvContext),
encode_init,
encode_frame,
encode_end,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
};
#endif
#if CONFIG_FFVHUFF_ENCODER
AVCodec ffvhuff_encoder = {
"ffvhuff",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_FFVHUFF,
sizeof(HYuvContext),
encode_init,
encode_frame,
encode_end,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
};
#endif
projects / ffmpeg / blobdiff