/*
* RV10 codec
- * Copyright (c) 2000,2001 Gerard Lantau.
+ * Copyright (c) 2000,2001 Fabrice Bellard.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library 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.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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
*/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include "common.h"
-#include "dsputil.h"
+
+/**
+ * @file rv10.c
+ * RV10 codec.
+ */
+
#include "avcodec.h"
+#include "dsputil.h"
#include "mpegvideo.h"
//#define DEBUG
-static const UINT16 rv_lum_code[256] =
+#define DC_VLC_BITS 14 //FIXME find a better solution
+
+static const uint16_t rv_lum_code[256] =
{
0x3e7f, 0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06,
0x0f07, 0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e,
0x0f78, 0x0f79, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f7e, 0x0f7f,
};
-static const UINT8 rv_lum_bits[256] =
+static const uint8_t rv_lum_bits[256] =
{
14, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12,
};
-static const UINT16 rv_chrom_code[256] =
+static const uint16_t rv_chrom_code[256] =
{
0xfe7f, 0x3f00, 0x3f01, 0x3f02, 0x3f03, 0x3f04, 0x3f05, 0x3f06,
0x3f07, 0x3f08, 0x3f09, 0x3f0a, 0x3f0b, 0x3f0c, 0x3f0d, 0x3f0e,
0x3f78, 0x3f79, 0x3f7a, 0x3f7b, 0x3f7c, 0x3f7d, 0x3f7e, 0x3f7f,
};
-static const UINT8 rv_chrom_bits[256] =
+static const uint8_t rv_chrom_bits[256] =
{
16, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14,
int code;
if (n < 4) {
- code = get_vlc(&s->gb, &rv_dc_lum);
+ code = get_vlc2(&s->gb, rv_dc_lum.table, DC_VLC_BITS, 2);
if (code < 0) {
/* XXX: I don't understand why they use LONGER codes than
necessary. The following code would be completely useless
if they had thought about it !!! */
code = get_bits(&s->gb, 7);
if (code == 0x7c) {
- code = (INT8)(get_bits(&s->gb, 7) + 1);
+ code = (int8_t)(get_bits(&s->gb, 7) + 1);
} else if (code == 0x7d) {
code = -128 + get_bits(&s->gb, 7);
} else if (code == 0x7e) {
if (get_bits(&s->gb, 1) == 0)
- code = (INT8)(get_bits(&s->gb, 8) + 1);
+ code = (int8_t)(get_bits(&s->gb, 8) + 1);
else
- code = (INT8)(get_bits(&s->gb, 8));
+ code = (int8_t)(get_bits(&s->gb, 8));
} else if (code == 0x7f) {
get_bits(&s->gb, 11);
code = 1;
code -= 128;
}
} else {
- code = get_vlc(&s->gb, &rv_dc_chrom);
+ code = get_vlc2(&s->gb, rv_dc_chrom.table, DC_VLC_BITS, 2);
/* same remark */
if (code < 0) {
code = get_bits(&s->gb, 9);
if (code == 0x1fc) {
- code = (INT8)(get_bits(&s->gb, 7) + 1);
+ code = (int8_t)(get_bits(&s->gb, 7) + 1);
} else if (code == 0x1fd) {
code = -128 + get_bits(&s->gb, 7);
} else if (code == 0x1fe) {
get_bits(&s->gb, 9);
code = 1;
} else {
+ fprintf(stderr, "chroma dc error\n");
return 0xffff;
}
} else {
return -code;
}
+#ifdef CONFIG_ENCODERS
+
/* write RV 1.0 compatible frame header */
void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
{
- align_put_bits(&s->pb);
+ int full_frame= 0;
+ align_put_bits(&s->pb);
+
put_bits(&s->pb, 1, 1); /* marker */
put_bits(&s->pb, 1, (s->pict_type == P_TYPE));
}
/* if multiple packets per frame are sent, the position at which
to display the macro blocks is coded here */
- put_bits(&s->pb, 6, 0); /* mb_x */
- put_bits(&s->pb, 6, 0); /* mb_y */
- put_bits(&s->pb, 12, s->mb_width * s->mb_height);
+ if(!full_frame){
+ put_bits(&s->pb, 6, 0); /* mb_x */
+ put_bits(&s->pb, 6, 0); /* mb_y */
+ put_bits(&s->pb, 12, s->mb_width * s->mb_height);
+ }
put_bits(&s->pb, 3, 0); /* ignored */
}
}
}
+#endif //CONFIG_ENCODERS
+
/* read RV 1.0 compatible frame header */
static int rv10_decode_picture_header(MpegEncContext *s)
{
- int mb_count, pb_frame, marker, h, full_frame;
+ int mb_count, pb_frame, marker, full_frame, unk;
- /* skip packet header */
- h = get_bits(&s->gb, 8);
- if ((h & 0xc0) == 0xc0) {
- int len, pos;
- full_frame = 1;
- len = get_num(&s->gb);
- pos = get_num(&s->gb);
- } else {
- int seq, frame_size, pos;
- full_frame = 0;
- seq = get_bits(&s->gb, 8);
- frame_size = get_num(&s->gb);
- pos = get_num(&s->gb);
- }
- /* picture number */
- get_bits(&s->gb, 8);
-
+ full_frame= s->avctx->slice_count==1;
+//printf("ff:%d\n", full_frame);
marker = get_bits(&s->gb, 1);
if (get_bits(&s->gb, 1))
s->pict_type = P_TYPE;
else
s->pict_type = I_TYPE;
-
+//printf("h:%X ver:%d\n",h,s->rv10_version);
+ if(!marker) printf("marker missing\n");
pb_frame = get_bits(&s->gb, 1);
#ifdef DEBUG
printf("pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
#endif
- if (pb_frame)
+ if (pb_frame){
+ fprintf(stderr, "pb frame not supported\n");
return -1;
+ }
s->qscale = get_bits(&s->gb, 5);
+ if(s->qscale==0){
+ fprintf(stderr, "error, qscale:0\n");
+ return -1;
+ }
if (s->pict_type == I_TYPE) {
if (s->rv10_version == 3) {
}
/* if multiple packets per frame are sent, the position at which
to display the macro blocks is coded here */
- if (!full_frame) {
+ if ((!full_frame) || show_bits(&s->gb, 12)==0) {
s->mb_x = get_bits(&s->gb, 6); /* mb_x */
s->mb_y = get_bits(&s->gb, 6); /* mb_y */
mb_count = get_bits(&s->gb, 12);
s->mb_y = 0;
mb_count = s->mb_width * s->mb_height;
}
-
- get_bits(&s->gb, 3); /* ignored */
+ unk= get_bits(&s->gb, 3); /* ignored */
+//printf("%d\n", unk);
s->f_code = 1;
s->unrestricted_mv = 1;
-#if 0
- s->h263_long_vectors = 1;
-#endif
+
return mb_count;
}
static int rv10_decode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
- static int done;
+ static int done=0;
-// s->avctx= avctx;
+ s->avctx= avctx;
s->out_format = FMT_H263;
s->width = avctx->width;
s->height = avctx->height;
s->h263_rv10 = 1;
- s->rv10_version = avctx->sub_id;
+ switch(avctx->sub_id){
+ case 0x10000000:
+ s->rv10_version= 0;
+ s->h263_long_vectors=0;
+ break;
+ case 0x10003000:
+ s->rv10_version= 3;
+ s->h263_long_vectors=1;
+ break;
+ case 0x10003001:
+ s->rv10_version= 3;
+ s->h263_long_vectors=0;
+ break;
+ default:
+ fprintf(stderr, "unknown header %X\n", avctx->sub_id);
+ }
+//printf("ver:%X\n", avctx->sub_id);
+ s->flags= avctx->flags;
if (MPV_common_init(s) < 0)
return -1;
h263_decode_init_vlc(s);
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ s->progressive_sequence=1;
+
/* init rv vlc */
if (!done) {
- init_vlc(&rv_dc_lum, 9, 256,
+ init_vlc(&rv_dc_lum, DC_VLC_BITS, 256,
rv_lum_bits, 1, 1,
rv_lum_code, 2, 2);
- init_vlc(&rv_dc_chrom, 9, 256,
+ init_vlc(&rv_dc_chrom, DC_VLC_BITS, 256,
rv_chrom_bits, 1, 1,
rv_chrom_code, 2, 2);
done = 1;
}
+
+ avctx->pix_fmt = PIX_FMT_YUV420P;
return 0;
}
return 0;
}
-static int rv10_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- UINT8 *buf, int buf_size)
+static int rv10_decode_packet(AVCodecContext *avctx,
+ uint8_t *buf, int buf_size)
{
MpegEncContext *s = avctx->priv_data;
int i, mb_count, mb_pos, left;
- DCTELEM block[6][64];
- AVPicture *pict = data;
-
-#ifdef DEBUG
- printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
-#endif
-
- /* no supplementary picture */
- if (buf_size == 0) {
- *data_size = 0;
- return 0;
- }
-
- init_get_bits(&s->gb, buf, buf_size);
+ init_get_bits(&s->gb, buf, buf_size*8);
+
mb_count = rv10_decode_picture_header(s);
if (mb_count < 0) {
-#ifdef DEBUG
- printf("HEADER ERROR\n");
-#endif
+ fprintf(stderr, "HEADER ERROR\n");
return -1;
}
if (s->mb_x >= s->mb_width ||
s->mb_y >= s->mb_height) {
-#ifdef DEBUG
- printf("POS ERROR %d %d\n", s->mb_x, s->mb_y);
-#endif
+ fprintf(stderr, "POS ERROR %d %d\n", s->mb_x, s->mb_y);
return -1;
}
mb_pos = s->mb_y * s->mb_width + s->mb_x;
left = s->mb_width * s->mb_height - mb_pos;
if (mb_count > left) {
-#ifdef DEBUG
- printf("COUNT ERROR\n");
-#endif
+ fprintf(stderr, "COUNT ERROR\n");
return -1;
}
if (s->mb_x == 0 && s->mb_y == 0) {
- MPV_frame_start(s);
+ if(MPV_frame_start(s, avctx) < 0)
+ return -1;
}
#ifdef DEBUG
s->rv10_first_dc_coded[0] = 0;
s->rv10_first_dc_coded[1] = 0;
s->rv10_first_dc_coded[2] = 0;
+
+ if(s->mb_y==0) s->first_slice_line=1;
+ s->block_wrap[0]=
+ s->block_wrap[1]=
+ s->block_wrap[2]=
+ s->block_wrap[3]= s->mb_width*2 + 2;
+ s->block_wrap[4]=
+ s->block_wrap[5]= s->mb_width + 2;
+ ff_init_block_index(s);
/* decode each macroblock */
for(i=0;i<mb_count;i++) {
+ ff_update_block_index(s);
#ifdef DEBUG
printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
#endif
- memset(block, 0, sizeof(block));
+ s->dsp.clear_blocks(s->block[0]);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
- if (h263_decode_mb(s, block) < 0) {
-#ifdef DEBUG
- printf("ERROR\n");
-#endif
+ if (ff_h263_decode_mb(s, s->block) == SLICE_ERROR) {
+ fprintf(stderr, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
return -1;
}
- MPV_decode_mb(s, block);
+ MPV_decode_mb(s, s->block);
if (++s->mb_x == s->mb_width) {
s->mb_x = 0;
s->mb_y++;
+ ff_init_block_index(s);
+ s->first_slice_line=0;
}
}
- if (s->mb_x == 0 &&
- s->mb_y == s->mb_height) {
+ return buf_size;
+}
+
+static int rv10_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ MpegEncContext *s = avctx->priv_data;
+ int i;
+ AVFrame *pict = data;
+
+#ifdef DEBUG
+ printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
+#endif
+
+ /* no supplementary picture */
+ if (buf_size == 0) {
+ *data_size = 0;
+ return 0;
+ }
+
+ if(avctx->slice_count){
+ for(i=0; i<avctx->slice_count; i++){
+ int offset= avctx->slice_offset[i];
+ int size;
+
+ if(i+1 == avctx->slice_count)
+ size= buf_size - offset;
+ else
+ size= avctx->slice_offset[i+1] - offset;
+
+ if( rv10_decode_packet(avctx, buf+offset, size) < 0 )
+ return -1;
+ }
+ }else{
+ if( rv10_decode_packet(avctx, buf, buf_size) < 0 )
+ return -1;
+ }
+
+ if(s->mb_y>=s->mb_height){
MPV_frame_end(s);
- pict->data[0] = s->current_picture[0];
- pict->data[1] = s->current_picture[1];
- pict->data[2] = s->current_picture[2];
- pict->linesize[0] = s->linesize;
- pict->linesize[1] = s->linesize / 2;
- pict->linesize[2] = s->linesize / 2;
-
- avctx->quality = s->qscale;
- *data_size = sizeof(AVPicture);
- } else {
+ *pict= *(AVFrame*)&s->current_picture;
+
+ *data_size = sizeof(AVFrame);
+ }else{
*data_size = 0;
}
+
return buf_size;
}
NULL,
rv10_decode_end,
rv10_decode_frame,
+ CODEC_CAP_DR1
};
projects / ffmpeg / blobdiff