/*
- * RV10 codec
- * Copyright (c) 2000,2001 Fabrice Bellard.
+ * RV10/RV20 decoder
+ * Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer
*
* This file is part of FFmpeg.
*/
/**
- * @file rv10.c
- * RV10 codec.
+ * @file
+ * RV10/RV20 decoder
*/
+#include "libavcore/imgutils.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
+#include "mpeg4video.h"
+#include "h263.h"
//#define DEBUG
return -code;
}
-
-#if defined(CONFIG_RV10_ENCODER) || defined(CONFIG_RV20_ENCODER)
-/* write RV 1.0 compatible frame header */
-void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
-{
- int full_frame= 0;
-
- align_put_bits(&s->pb);
-
- put_bits(&s->pb, 1, 1); /* marker */
-
- put_bits(&s->pb, 1, (s->pict_type == FF_P_TYPE));
-
- put_bits(&s->pb, 1, 0); /* not PB frame */
-
- put_bits(&s->pb, 5, s->qscale);
-
- if (s->pict_type == FF_I_TYPE) {
- /* specific MPEG like DC coding not used */
- }
- /* if multiple packets per frame are sent, the position at which
- to display the macro blocks is coded here */
- 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 */
-}
-
-void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
- put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
- put_bits(&s->pb, 1, 0); /* unknown bit */
- put_bits(&s->pb, 5, s->qscale);
-
- put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
- s->mb_x= s->mb_y= 0;
- ff_h263_encode_mba(s);
-
- put_bits(&s->pb, 1, s->no_rounding);
-
- assert(s->f_code == 1);
- assert(s->unrestricted_mv == 1);
-// assert(s->h263_aic== (s->pict_type == FF_I_TYPE));
- assert(s->alt_inter_vlc == 0);
- assert(s->umvplus == 0);
- assert(s->modified_quant==1);
- assert(s->loop_filter==1);
-
- s->h263_aic= s->pict_type == FF_I_TYPE;
- if(s->h263_aic){
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_aic_dc_scale_table;
- }else{
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
- }
-}
-
-#if 0 /* unused, remove? */
-static int get_num(GetBitContext *gb)
-{
- int n, n1;
-
- n = get_bits(gb, 16);
- if (n >= 0x4000) {
- return n - 0x4000;
- } else {
- n1 = get_bits(gb, 16);
- return (n << 16) | n1;
- }
-}
-#endif
-
-#endif /* defined(CONFIG_RV10_ENCODER) || defined(CONFIG_RV20_ENCODER) */
-
/* read RV 1.0 compatible frame header */
static int rv10_decode_picture_header(MpegEncContext *s)
{
int mb_count, pb_frame, marker, unk, mb_xy;
-//printf("ff:%d\n", full_frame);
marker = get_bits1(&s->gb);
if (get_bits1(&s->gb))
s->pict_type = FF_P_TYPE;
else
s->pict_type = FF_I_TYPE;
-//printf("h:%X ver:%d\n",h,s->rv10_version);
if(!marker) av_log(s->avctx, AV_LOG_ERROR, "marker missing\n");
pb_frame = get_bits1(&s->gb);
-#ifdef DEBUG
- av_log(s->avctx, AV_LOG_DEBUG, "pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
-#endif
+ dprintf(s->avctx, "pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
if (pb_frame){
av_log(s->avctx, AV_LOG_ERROR, "pb frame not supported\n");
s->last_dc[0] = get_bits(&s->gb, 8);
s->last_dc[1] = get_bits(&s->gb, 8);
s->last_dc[2] = get_bits(&s->gb, 8);
-#ifdef DEBUG
- av_log(s->avctx, AV_LOG_DEBUG, "DC:%d %d %d\n",
- s->last_dc[0],
- s->last_dc[1],
- s->last_dc[2]);
-#endif
+ dprintf(s->avctx, "DC:%d %d %d\n", s->last_dc[0],
+ s->last_dc[1], s->last_dc[2]);
}
}
/* if multiple packets per frame are sent, the position at which
- to display the macro blocks is coded here */
+ to display the macroblocks is coded here */
mb_xy= s->mb_x + s->mb_y*s->mb_width;
if(show_bits(&s->gb, 12)==0 || (mb_xy && mb_xy < s->mb_num)){
mb_count = s->mb_width * s->mb_height;
}
unk= get_bits(&s->gb, 3); /* ignored */
-//printf("%d\n", unk);
s->f_code = 1;
s->unrestricted_mv = 1;
if (get_bits1(&s->gb)){
av_log(s->avctx, AV_LOG_ERROR, "unknown bit3 set\n");
-// return -1;
}
seq= get_bits(&s->gb, 13)<<2;
new_w= 4*((uint8_t*)s->avctx->extradata)[6+2*f];
new_h= 4*((uint8_t*)s->avctx->extradata)[7+2*f];
}else{
- new_w= s->width; //FIXME wrong we of course must save the original in the context
- new_h= s->height;
+ new_w= s->orig_width ;
+ new_h= s->orig_height;
}
if(new_w != s->width || new_h != s->height){
av_log(s->avctx, AV_LOG_DEBUG, "attempting to change resolution to %dx%d\n", new_w, new_h);
- if (avcodec_check_dimensions(s->avctx, new_h, new_w) < 0)
+ if (av_image_check_size(new_w, new_h, 0, s->avctx) < 0)
return -1;
MPV_common_end(s);
- s->width = s->avctx->width = new_w;
- s->height = s->avctx->height= new_h;
+ avcodec_set_dimensions(s->avctx, new_w, new_h);
+ s->width = new_w;
+ s->height = new_h;
if (MPV_common_init(s) < 0)
return -1;
}
// s->obmc=1;
// s->umvplus=1;
s->modified_quant=1;
- s->loop_filter=1;
+ if(!s->avctx->lowres)
+ s->loop_filter=1;
if(s->avctx->debug & FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_INFO, "num:%5d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n",
MpegEncContext *s = avctx->priv_data;
static int done=0;
+ if (avctx->extradata_size < 8) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata is too small.\n");
+ return -1;
+ }
+
MPV_decode_defaults(s);
s->avctx= avctx;
s->out_format = FMT_H263;
s->codec_id= avctx->codec_id;
- s->width = avctx->width;
- s->height = avctx->height;
+ s->orig_width = s->width = avctx->coded_width;
+ s->orig_height= s->height = avctx->coded_height;
s->h263_long_vectors= ((uint8_t*)avctx->extradata)[3] & 1;
avctx->sub_id= AV_RB32((uint8_t*)avctx->extradata + 4);
if (avctx->sub_id == 0x10000000) {
s->rv10_version= 0;
s->low_delay=1;
+ } else if (avctx->sub_id == 0x10001000) {
+ s->rv10_version= 3;
+ s->low_delay=1;
} else if (avctx->sub_id == 0x10002000) {
s->rv10_version= 3;
s->low_delay=1;
/* init rv vlc */
if (!done) {
- init_vlc(&rv_dc_lum, DC_VLC_BITS, 256,
+ INIT_VLC_STATIC(&rv_dc_lum, DC_VLC_BITS, 256,
rv_lum_bits, 1, 1,
- rv_lum_code, 2, 2, 1);
- init_vlc(&rv_dc_chrom, DC_VLC_BITS, 256,
+ rv_lum_code, 2, 2, 16384);
+ INIT_VLC_STATIC(&rv_dc_chrom, DC_VLC_BITS, 256,
rv_chrom_bits, 1, 1,
- rv_chrom_code, 2, 2, 1);
+ rv_chrom_code, 2, 2, 16388);
done = 1;
}
}
static int rv10_decode_packet(AVCodecContext *avctx,
- const uint8_t *buf, int buf_size)
+ const uint8_t *buf, int buf_size, int buf_size2)
{
MpegEncContext *s = avctx->priv_data;
int mb_count, mb_pos, left, start_mb_x;
av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n");
return -1;
}
-//if(s->pict_type == FF_P_TYPE) return 0;
if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {
if(s->current_picture_ptr){ //FIXME write parser so we always have complete frames?
ff_er_frame_start(s);
}
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
-#endif
+ dprintf(avctx, "qscale=%d\n", s->qscale);
/* default quantization values */
if(s->codec_id== CODEC_ID_RV10){
s->rv10_first_dc_coded[0] = 0;
s->rv10_first_dc_coded[1] = 0;
s->rv10_first_dc_coded[2] = 0;
-//printf("%d %X %X\n", s->pict_type, s->current_picture.motion_val[0], s->current_picture.motion_val[1]);
s->block_wrap[0]=
s->block_wrap[1]=
s->block_wrap[2]=
for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {
int ret;
ff_update_block_index(s);
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "**mb x=%d y=%d\n", s->mb_x, s->mb_y);
-#endif
+ dprintf(avctx, "**mb x=%d y=%d\n", s->mb_x, s->mb_y);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
ret=ff_h263_decode_mb(s, s->block);
+ if (ret != SLICE_ERROR && s->gb.size_in_bits < get_bits_count(&s->gb) && 8*buf_size2 >= get_bits_count(&s->gb)){
+ av_log(avctx, AV_LOG_DEBUG, "update size from %d to %d\n", s->gb.size_in_bits, 8*buf_size2);
+ s->gb.size_in_bits= 8*buf_size2;
+ ret= SLICE_OK;
+ }
+
if (ret == SLICE_ERROR || s->gb.size_in_bits < get_bits_count(&s->gb)) {
av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
return -1;
ff_er_add_slice(s, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
- return buf_size;
+ return s->gb.size_in_bits;
}
static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
static int rv10_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- const uint8_t *buf, int buf_size)
+ AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
MpegEncContext *s = avctx->priv_data;
int i;
AVFrame *pict = data;
int slice_count;
const uint8_t *slices_hdr = NULL;
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
-#endif
+ dprintf(avctx, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
/* no supplementary picture */
if (buf_size == 0) {
for(i=0; i<slice_count; i++){
int offset= get_slice_offset(avctx, slices_hdr, i);
- int size;
+ int size, size2;
if(i+1 == slice_count)
size= buf_size - offset;
else
size= get_slice_offset(avctx, slices_hdr, i+1) - offset;
- rv10_decode_packet(avctx, buf+offset, size);
+ if(i+2 >= slice_count)
+ size2= buf_size - offset;
+ else
+ size2= get_slice_offset(avctx, slices_hdr, i+2) - offset;
+
+ if(rv10_decode_packet(avctx, buf+offset, size, size2) > 8*size)
+ i++;
}
if(s->current_picture_ptr != NULL && s->mb_y>=s->mb_height){
AVCodec rv10_decoder = {
"rv10",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_RV10,
sizeof(MpegEncContext),
rv10_decode_init,
rv10_decode_end,
rv10_decode_frame,
CODEC_CAP_DR1,
+ .max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
+ .pix_fmts= ff_pixfmt_list_420,
};
AVCodec rv20_decoder = {
"rv20",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_RV20,
sizeof(MpegEncContext),
rv10_decode_init,
rv10_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
+ .pix_fmts= ff_pixfmt_list_420,
};
-
projects / ffmpeg / blobdiff