/*
- * 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.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file rv10.c
- * RV10 codec.
+ * @file
+ * RV10/RV20 decoder
*/
+#include "libavutil/imgutils.h"
#include "avcodec.h"
-#include "dsputil.h"
#include "mpegvideo.h"
+#include "mpeg4video.h"
+#include "h263.h"
//#define DEBUG
+#define RV_GET_MAJOR_VER(x) ((x) >> 28)
+#define RV_GET_MINOR_VER(x) (((x) >> 20) & 0xFF)
+#define RV_GET_MICRO_VER(x) (((x) >> 12) & 0xFF)
+
#define DC_VLC_BITS 14 //FIXME find a better solution
+typedef struct RVDecContext {
+ MpegEncContext m;
+ int sub_id;
+} RVDecContext;
+
static const uint16_t rv_lum_code[256] =
{
0x3e7f, 0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06,
static VLC rv_dc_lum, rv_dc_chrom;
-int rv_decode_dc(MpegEncContext *s, int n)
+int ff_rv_decode_dc(MpegEncContext *s, int n)
{
int code;
return -code;
}
-#ifdef CONFIG_ENCODERS
-
-/* 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 == P_TYPE));
-
- put_bits(&s->pb, 1, 0); /* not PB frame */
-
- put_bits(&s->pb, 5, s->qscale);
-
- if (s->pict_type == 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_bits(&s->pb, 8, picture_number&0xFF); //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 == 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 == 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 //CONFIG_ENCODERS
-
/* read RV 1.0 compatible frame header */
static int rv10_decode_picture_header(MpegEncContext *s)
{
- int mb_count, pb_frame, marker, unk, mb_xy;
+ int mb_count, pb_frame, marker, mb_xy;
-//printf("ff:%d\n", full_frame);
marker = get_bits1(&s->gb);
if (get_bits1(&s->gb))
- s->pict_type = P_TYPE;
+ s->pict_type = AV_PICTURE_TYPE_P;
else
- s->pict_type = I_TYPE;
-//printf("h:%X ver:%d\n",h,s->rv10_version);
+ s->pict_type = AV_PICTURE_TYPE_I;
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
+ av_dlog(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");
return -1;
}
- if (s->pict_type == I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
if (s->rv10_version == 3) {
/* specific MPEG like DC coding not used */
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
+ av_dlog(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)){
s->mb_y = 0;
mb_count = s->mb_width * s->mb_height;
}
- unk= get_bits(&s->gb, 3); /* ignored */
-//printf("%d\n", unk);
+ skip_bits(&s->gb, 3); /* ignored */
s->f_code = 1;
s->unrestricted_mv = 1;
return mb_count;
}
-static int rv20_decode_picture_header(MpegEncContext *s)
+static int rv20_decode_picture_header(RVDecContext *rv)
{
+ MpegEncContext *s = &rv->m;
int seq, mb_pos, i;
-
-#if 0
- GetBitContext gb= s->gb;
- for(i=0; i<64; i++){
- av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&gb));
- if(i%4==3) av_log(s->avctx, AV_LOG_DEBUG, " ");
- }
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
-#endif
-#if 0
- av_log(s->avctx, AV_LOG_DEBUG, "%3dx%03d/%02Xx%02X ", s->width, s->height, s->width/4, s->height/4);
- for(i=0; i<s->avctx->extradata_size; i++){
- av_log(s->avctx, AV_LOG_DEBUG, "%02X ", ((uint8_t*)s->avctx->extradata)[i]);
- if(i%4==3) av_log(s->avctx, AV_LOG_DEBUG, " ");
- }
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
-#endif
-
- if(s->avctx->sub_id == 0x30202002 || s->avctx->sub_id == 0x30203002){
- if (get_bits(&s->gb, 3)){
- av_log(s->avctx, AV_LOG_ERROR, "unknown triplet set\n");
- return -1;
- }
- }
+ int rpr_bits;
i= get_bits(&s->gb, 2);
switch(i){
- case 0: s->pict_type= I_TYPE; break;
- case 1: s->pict_type= I_TYPE; break; //hmm ...
- case 2: s->pict_type= P_TYPE; break;
- case 3: s->pict_type= B_TYPE; break;
+ case 0: s->pict_type= AV_PICTURE_TYPE_I; break;
+ case 1: s->pict_type= AV_PICTURE_TYPE_I; break; //hmm ...
+ case 2: s->pict_type= AV_PICTURE_TYPE_P; break;
+ case 3: s->pict_type= AV_PICTURE_TYPE_B; break;
default:
av_log(s->avctx, AV_LOG_ERROR, "unknown frame type\n");
return -1;
}
- if(s->last_picture_ptr==NULL && s->pict_type==B_TYPE){
+ if(s->last_picture_ptr==NULL && s->pict_type==AV_PICTURE_TYPE_B){
av_log(s->avctx, AV_LOG_ERROR, "early B pix\n");
return -1;
}
if (get_bits1(&s->gb)){
- av_log(s->avctx, AV_LOG_ERROR, "unknown bit set\n");
+ av_log(s->avctx, AV_LOG_ERROR, "reserved bit set\n");
return -1;
}
av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n");
return -1;
}
- if(s->avctx->sub_id == 0x30203002){
- if (get_bits1(&s->gb)){
- av_log(s->avctx, AV_LOG_ERROR, "unknown bit2 set\n");
- return -1;
- }
- }
- if(s->avctx->has_b_frames){
- int f, new_w, new_h;
- int v= s->avctx->extradata_size >= 4 ? 7&((uint8_t*)s->avctx->extradata)[1] : 0;
+ if(RV_GET_MINOR_VER(rv->sub_id) >= 2)
+ s->loop_filter = get_bits1(&s->gb);
- 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;
+ if(RV_GET_MINOR_VER(rv->sub_id) <= 1)
+ seq = get_bits(&s->gb, 8) << 7;
+ else
+ seq = get_bits(&s->gb, 13) << 2;
- f= get_bits(&s->gb, av_log2(v)+1);
+ rpr_bits = s->avctx->extradata[1] & 7;
+ if(rpr_bits){
+ int f, new_w, new_h;
+ rpr_bits = FFMIN((rpr_bits >> 1) + 1, 3);
+
+ f = get_bits(&s->gb, rpr_bits);
if(f){
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;
- if (MPV_common_init(s) < 0)
+ ff_MPV_common_end(s);
+ avcodec_set_dimensions(s->avctx, new_w, new_h);
+ s->width = new_w;
+ s->height = new_h;
+ if (ff_MPV_common_init(s) < 0)
return -1;
}
if(s->avctx->debug & FF_DEBUG_PICT_INFO){
- av_log(s->avctx, AV_LOG_DEBUG, "F %d/%d\n", f, v);
+ av_log(s->avctx, AV_LOG_DEBUG, "F %d/%d\n", f, rpr_bits);
}
- }else{
- seq= get_bits(&s->gb, 8)*128;
- }
+ } else if (av_image_check_size(s->width, s->height, 0, s->avctx) < 0)
+ return AVERROR_INVALIDDATA;
+
+ mb_pos = ff_h263_decode_mba(s);
-// if(s->avctx->sub_id <= 0x20201002){ //0x20201002 definitely needs this
- mb_pos= ff_h263_decode_mba(s);
-/* }else{
- mb_pos= get_bits(&s->gb, av_log2(s->mb_num-1)+1);
- s->mb_x= mb_pos % s->mb_width;
- s->mb_y= mb_pos / s->mb_width;
- }*/
-//av_log(s->avctx, AV_LOG_DEBUG, "%d\n", seq);
seq |= s->time &~0x7FFF;
if(seq - s->time > 0x4000) seq -= 0x8000;
if(seq - s->time < -0x4000) seq += 0x8000;
if(seq != s->time){
- if(s->pict_type!=B_TYPE){
+ if(s->pict_type!=AV_PICTURE_TYPE_B){
s->time= seq;
s->pp_time= s->time - s->last_non_b_time;
s->last_non_b_time= s->time;
ff_mpeg4_init_direct_mv(s);
}
}
-// printf("%d %d %d %d %d\n", seq, (int)s->time, (int)s->last_non_b_time, s->pp_time, s->pb_time);
-/*for(i=0; i<32; i++){
- av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&s->gb));
-}
-av_log(s->avctx, AV_LOG_DEBUG, "\n");*/
+
s->no_rounding= get_bits1(&s->gb);
+ if(RV_GET_MINOR_VER(rv->sub_id) <= 1 && s->pict_type == AV_PICTURE_TYPE_B)
+ skip_bits(&s->gb, 5); // binary decoder reads 3+2 bits here but they don't seem to be used
+
s->f_code = 1;
s->unrestricted_mv = 1;
- s->h263_aic= s->pict_type == I_TYPE;
+ s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I;
// s->alt_inter_vlc=1;
// s->obmc=1;
// s->umvplus=1;
seq, s->mb_x, s->mb_y, s->pict_type, s->qscale, s->no_rounding);
}
- assert(s->pict_type != B_TYPE || !s->low_delay);
+ assert(s->pict_type != AV_PICTURE_TYPE_B || !s->low_delay);
return s->mb_width*s->mb_height - mb_pos;
}
-static int rv10_decode_init(AVCodecContext *avctx)
+static av_cold int rv10_decode_init(AVCodecContext *avctx)
{
- MpegEncContext *s = avctx->priv_data;
+ RVDecContext *rv = avctx->priv_data;
+ MpegEncContext *s = &rv->m;
static int done=0;
+ int major_ver, minor_ver, micro_ver;
- MPV_decode_defaults(s);
+ if (avctx->extradata_size < 8) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata is too small.\n");
+ return -1;
+ }
+
+ ff_MPV_decode_defaults(s);
s->avctx= avctx;
s->out_format = FMT_H263;
s->codec_id= avctx->codec_id;
+ avctx->flags |= CODEC_FLAG_EMU_EDGE;
- 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 == 0x10002000) {
- s->rv10_version= 3;
- s->low_delay=1;
- s->obmc=1;
- } else if (avctx->sub_id == 0x10003000) {
- s->rv10_version= 3;
- s->low_delay=1;
- } else if (avctx->sub_id == 0x10003001) {
- s->rv10_version= 3;
- s->low_delay=1;
- } else if ( avctx->sub_id == 0x20001000
- || (avctx->sub_id >= 0x20100000 && avctx->sub_id < 0x201a0000)) {
- s->low_delay=1;
- } else if ( avctx->sub_id == 0x30202002
- || avctx->sub_id == 0x30203002
- || (avctx->sub_id >= 0x20200002 && avctx->sub_id < 0x20300000)) {
- s->low_delay=0;
- s->avctx->has_b_frames=1;
- } else
- av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id);
+ rv->sub_id = AV_RB32((uint8_t*)avctx->extradata + 4);
+
+ major_ver = RV_GET_MAJOR_VER(rv->sub_id);
+ minor_ver = RV_GET_MINOR_VER(rv->sub_id);
+ micro_ver = RV_GET_MICRO_VER(rv->sub_id);
+
+ s->low_delay = 1;
+ switch (major_ver) {
+ case 1:
+ s->rv10_version = micro_ver ? 3 : 1;
+ s->obmc = micro_ver == 2;
+ break;
+ case 2:
+ if (minor_ver >= 2) {
+ s->low_delay = 0;
+ s->avctx->has_b_frames = 1;
+ }
+ break;
+ default:
+ av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", rv->sub_id);
+ av_log_missing_feature(avctx, "RV1/2 version", 1);
+ return AVERROR_PATCHWELCOME;
+ }
if(avctx->debug & FF_DEBUG_PICT_INFO){
- av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", avctx->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1);
+ av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", rv->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1);
}
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
- if (MPV_common_init(s) < 0)
+ if (ff_MPV_common_init(s) < 0)
return -1;
- h263_decode_init_vlc(s);
+ ff_h263_decode_init_vlc();
/* 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;
}
return 0;
}
-static int rv10_decode_end(AVCodecContext *avctx)
+static av_cold int rv10_decode_end(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
- MPV_common_end(s);
+ ff_MPV_common_end(s);
return 0;
}
static int rv10_decode_packet(AVCodecContext *avctx,
- 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;
+ RVDecContext *rv = avctx->priv_data;
+ MpegEncContext *s = &rv->m;
+ int mb_count, mb_pos, left, start_mb_x, active_bits_size;
- init_get_bits(&s->gb, buf, buf_size*8);
- if(s->codec_id ==CODEC_ID_RV10)
+ active_bits_size = buf_size * 8;
+ init_get_bits(&s->gb, buf, FFMAX(buf_size, buf_size2) * 8);
+ if(s->codec_id ==AV_CODEC_ID_RV10)
mb_count = rv10_decode_picture_header(s);
else
- mb_count = rv20_decode_picture_header(s);
+ mb_count = rv20_decode_picture_header(rv);
if (mb_count < 0) {
av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n");
return -1;
av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n");
return -1;
}
-//if(s->pict_type == 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_end(s);
- MPV_frame_end(s);
+ ff_er_frame_end(&s->er);
+ ff_MPV_frame_end(s);
s->mb_x= s->mb_y = s->resync_mb_x = s->resync_mb_y= 0;
}
- if(MPV_frame_start(s, avctx) < 0)
+ if(ff_MPV_frame_start(s, avctx) < 0)
+ return -1;
+ ff_mpeg_er_frame_start(s);
+ } else {
+ if (s->current_picture_ptr->f.pict_type != s->pict_type) {
+ av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
return -1;
- ff_er_frame_start(s);
+ }
}
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
-#endif
+ av_dlog(avctx, "qscale=%d\n", s->qscale);
/* default quantization values */
- if(s->codec_id== CODEC_ID_RV10){
+ if(s->codec_id== AV_CODEC_ID_RV10){
if(s->mb_y==0) s->first_slice_line=1;
}else{
s->first_slice_line=1;
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
+ av_dlog(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)) {
+ // Repeat the slice end check from ff_h263_decode_mb with our active
+ // bitstream size
+ if (ret != SLICE_ERROR) {
+ int v = show_bits(&s->gb, 16);
+
+ if (get_bits_count(&s->gb) + 16 > active_bits_size)
+ v >>= get_bits_count(&s->gb) + 16 - active_bits_size;
+
+ if (!v)
+ ret = SLICE_END;
+ }
+ if (ret != SLICE_ERROR && active_bits_size < get_bits_count(&s->gb) &&
+ 8 * buf_size2 >= get_bits_count(&s->gb)) {
+ active_bits_size = buf_size2 * 8;
+ av_log(avctx, AV_LOG_DEBUG, "update size from %d to %d\n",
+ 8 * buf_size, active_bits_size);
+ ret= SLICE_OK;
+ }
+
+ if (ret == SLICE_ERROR || active_bits_size < 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;
}
- if(s->pict_type != B_TYPE)
+ if(s->pict_type != AV_PICTURE_TYPE_B)
ff_h263_update_motion_val(s);
- MPV_decode_mb(s, s->block);
+ ff_MPV_decode_mb(s, s->block);
if(s->loop_filter)
ff_h263_loop_filter(s);
if(ret == SLICE_END) break;
}
- 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);
+ ff_er_add_slice(&s->er, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END);
- return buf_size;
+ return active_bits_size;
}
-static int get_slice_offset(AVCodecContext *avctx, uint8_t *buf, int n)
+static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
{
if(avctx->slice_count) return avctx->slice_offset[n];
else return AV_RL32(buf + n*8);
}
static int rv10_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ void *data, int *got_frame,
+ 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;
- uint8_t *slices_hdr = NULL;
+ 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
+ av_dlog(avctx, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
/* no supplementary picture */
if (buf_size == 0) {
if(!avctx->slice_count){
slice_count = (*buf++) + 1;
+ buf_size--;
+
+ if (!slice_count || buf_size <= 8 * slice_count) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid slice count: %d.\n", slice_count);
+ return AVERROR_INVALIDDATA;
+ }
+
slices_hdr = buf + 4;
buf += 8 * slice_count;
+ buf_size -= 8 * slice_count;
}else
slice_count = avctx->slice_count;
- for(i=0; i<slice_count; i++){
- int offset= get_slice_offset(avctx, slices_hdr, i);
- int size;
+ for(i=0; i<slice_count; i++){
+ unsigned offset = get_slice_offset(avctx, slices_hdr, i);
+ int size, size2;
- if(i+1 == slice_count)
- size= buf_size - offset;
- else
- size= get_slice_offset(avctx, slices_hdr, i+1) - offset;
+ if (offset >= buf_size)
+ return AVERROR_INVALIDDATA;
- rv10_decode_packet(avctx, buf+offset, size);
- }
+ if(i+1 == slice_count)
+ size= buf_size - offset;
+ else
+ size= get_slice_offset(avctx, slices_hdr, i+1) - offset;
+
+ if(i+2 >= slice_count)
+ size2= buf_size - offset;
+ else
+ size2= get_slice_offset(avctx, slices_hdr, i+2) - offset;
+
+ if (size <= 0 || size2 <= 0 ||
+ offset + FFMAX(size, size2) > buf_size)
+ return AVERROR_INVALIDDATA;
+
+ if(rv10_decode_packet(avctx, buf+offset, size, size2) > 8*size)
+ i++;
+ }
if(s->current_picture_ptr != NULL && s->mb_y>=s->mb_height){
- ff_er_frame_end(s);
- MPV_frame_end(s);
+ ff_er_frame_end(&s->er);
+ ff_MPV_frame_end(s);
- if (s->pict_type == B_TYPE || s->low_delay) {
- *pict= *(AVFrame*)s->current_picture_ptr;
+ if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
+ *pict = s->current_picture_ptr->f;
} else if (s->last_picture_ptr != NULL) {
- *pict= *(AVFrame*)s->last_picture_ptr;
+ *pict = s->last_picture_ptr->f;
}
if(s->last_picture_ptr || s->low_delay){
- *data_size = sizeof(AVFrame);
+ *got_frame = 1;
ff_print_debug_info(s, pict);
}
- s->current_picture_ptr= NULL; //so we can detect if frame_end wasnt called (find some nicer solution...)
+ s->current_picture_ptr= NULL; // so we can detect if frame_end was not called (find some nicer solution...)
}
- return buf_size;
+ return avpkt->size;
}
-AVCodec rv10_decoder = {
- "rv10",
- CODEC_TYPE_VIDEO,
- CODEC_ID_RV10,
- sizeof(MpegEncContext),
- rv10_decode_init,
- NULL,
- rv10_decode_end,
- rv10_decode_frame,
- CODEC_CAP_DR1
+AVCodec ff_rv10_decoder = {
+ .name = "rv10",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_RV10,
+ .priv_data_size = sizeof(RVDecContext),
+ .init = rv10_decode_init,
+ .close = rv10_decode_end,
+ .decode = rv10_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
+ .pix_fmts = ff_pixfmt_list_420,
};
-AVCodec rv20_decoder = {
- "rv20",
- CODEC_TYPE_VIDEO,
- CODEC_ID_RV20,
- sizeof(MpegEncContext),
- rv10_decode_init,
- NULL,
- rv10_decode_end,
- rv10_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY,
- .flush= ff_mpeg_flush,
+AVCodec ff_rv20_decoder = {
+ .name = "rv20",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_RV20,
+ .priv_data_size = sizeof(RVDecContext),
+ .init = rv10_decode_init,
+ .close = rv10_decode_end,
+ .decode = rv10_decode_frame,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
+ .pix_fmts = ff_pixfmt_list_420,
};
-
projects / ffmpeg / blobdiff