* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * 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 libavcodec/h263dec.c
+ * @file
* H.263 decoder.
*/
+#include "libavutil/cpu.h"
#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
+#include "h263.h"
#include "h263_parser.h"
#include "mpeg4video_parser.h"
#include "msmpeg4.h"
+#include "vdpau_internal.h"
+#include "flv.h"
+#include "mpeg4video.h"
//#define DEBUG
//#define PRINT_FRAME_TIME
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
break;
case CODEC_ID_MPEG4:
- s->decode_mb= ff_mpeg4_decode_mb;
- s->time_increment_bits = 4; /* default value for broken headers */
- s->h263_pred = 1;
- s->low_delay = 0; //default, might be overriden in the vol header during header parsing
- avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
break;
case CODEC_ID_MSMPEG4V1:
s->h263_msmpeg4 = 1;
if (MPV_common_init(s) < 0)
return -1;
- if (CONFIG_MSMPEG4_DECODER && s->h263_msmpeg4)
- ff_msmpeg4_decode_init(s);
- else
h263_decode_init_vlc(s);
return 0;
if(s->partitioned_frame){
const int qscale= s->qscale;
- if(s->codec_id==CODEC_ID_MPEG4){
+ if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){
if(ff_mpeg4_decode_partitions(s) < 0)
return -1;
}
assert(s->mb_x==0 && s->mb_y==s->mb_height);
+ if(s->codec_id==CODEC_ID_MPEG4
+ && (s->workaround_bugs&FF_BUG_AUTODETECT)
+ && get_bits_left(&s->gb) >= 48
+ && show_bits(&s->gb, 24)==0x4010
+ && !s->data_partitioning)
+ s->padding_bug_score+=32;
+
/* try to detect the padding bug */
if( s->codec_id==CODEC_ID_MPEG4
&& (s->workaround_bugs&FF_BUG_AUTODETECT)
- && s->gb.size_in_bits - get_bits_count(&s->gb) >=0
- && s->gb.size_in_bits - get_bits_count(&s->gb) < 48
+ && get_bits_left(&s->gb) >=0
+ && get_bits_left(&s->gb) < 48
// && !s->resync_marker
&& !s->data_partitioning){
}
if(s->workaround_bugs&FF_BUG_AUTODETECT){
- if(s->padding_bug_score > -2 && !s->data_partitioning /*&& (s->divx_version || !s->resync_marker)*/)
+ if(s->padding_bug_score > -2 && !s->data_partitioning /*&& (s->divx_version>=0 || !s->resync_marker)*/)
s->workaround_bugs |= FF_BUG_NO_PADDING;
else
s->workaround_bugs &= ~FF_BUG_NO_PADDING;
// handle formats which don't have unique end markers
if(s->msmpeg4_version || (s->workaround_bugs&FF_BUG_NO_PADDING)){ //FIXME perhaps solve this more cleanly
- int left= s->gb.size_in_bits - get_bits_count(&s->gb);
+ int left= get_bits_left(&s->gb);
int max_extra=7;
/* no markers in M$ crap */
}
av_log(s->avctx, AV_LOG_ERROR, "slice end not reached but screenspace end (%d left %06X, score= %d)\n",
- s->gb.size_in_bits - get_bits_count(&s->gb),
+ get_bits_left(&s->gb),
show_bits(&s->gb, 24), s->padding_bug_score);
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
#ifdef PRINT_FRAME_TIME
uint64_t time= rdtsc();
-#endif
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
- if(buf_size>0)
- av_log(avctx, AV_LOG_DEBUG, "bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);
#endif
s->flags= avctx->flags;
s->flags2= avctx->flags2;
ret= ff_wmv2_decode_picture_header(s);
} else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {
ret = msmpeg4_decode_picture_header(s);
- } else if (s->h263_pred) {
+ } else if (CONFIG_MPEG4_DECODER && s->h263_pred) {
if(s->avctx->extradata_size && s->picture_number==0){
GetBitContext gb;
ret = ff_mpeg4_decode_picture_header(s, &gb);
}
ret = ff_mpeg4_decode_picture_header(s, &s->gb);
- } else if (s->codec_id == CODEC_ID_H263I) {
- ret = intel_h263_decode_picture_header(s);
- } else if (s->h263_flv) {
- ret = flv_h263_decode_picture_header(s);
+ } else if (CONFIG_H263I_DECODER && s->codec_id == CODEC_ID_H263I) {
+ ret = ff_intel_h263_decode_picture_header(s);
+ } else if (CONFIG_FLV_DECODER && s->h263_flv) {
+ ret = ff_flv_decode_picture_header(s);
} else {
ret = h263_decode_picture_header(s);
}
avctx->has_b_frames= !s->low_delay;
- if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
+ if(s->xvid_build==-1 && s->divx_version==-1 && s->lavc_build==-1){
if(s->stream_codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||
- s->codec_tag == AV_RL32("RMP4"))
- s->xvid_build= -1;
+ s->codec_tag == AV_RL32("RMP4") ||
+ s->codec_tag == AV_RL32("SIPP")
+ )
+ s->xvid_build= 0;
#if 0
if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
&& s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc
- s->xvid_build= -1;
+ s->xvid_build= 0;
#endif
}
- if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
+ if(s->xvid_build==-1 && s->divx_version==-1 && s->lavc_build==-1){
if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
s->divx_version= 400; //divx 4
}
- if(s->xvid_build && s->divx_version){
+ if(s->xvid_build>=0 && s->divx_version>=0){
s->divx_version=
- s->divx_build= 0;
+ s->divx_build= -1;
}
if(s->workaround_bugs&FF_BUG_AUTODETECT){
s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;
}
- if(s->xvid_build && s->xvid_build<=3)
+ if(s->xvid_build<=3U)
s->padding_bug_score= 256*256*256*64;
- if(s->xvid_build && s->xvid_build<=1)
+ if(s->xvid_build<=1U)
s->workaround_bugs|= FF_BUG_QPEL_CHROMA;
- if(s->xvid_build && s->xvid_build<=12)
+ if(s->xvid_build<=12U)
s->workaround_bugs|= FF_BUG_EDGE;
- if(s->xvid_build && s->xvid_build<=32)
+ if(s->xvid_build<=32U)
s->workaround_bugs|= FF_BUG_DC_CLIP;
#define SET_QPEL_FUNC(postfix1, postfix2) \
s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\
s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;
- if(s->lavc_build && s->lavc_build<4653)
+ if(s->lavc_build<4653U)
s->workaround_bugs|= FF_BUG_STD_QPEL;
- if(s->lavc_build && s->lavc_build<4655)
+ if(s->lavc_build<4655U)
s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;
- if(s->lavc_build && s->lavc_build<4670){
+ if(s->lavc_build<4670U){
s->workaround_bugs|= FF_BUG_EDGE;
}
- if(s->lavc_build && s->lavc_build<=4712)
+ if(s->lavc_build<=4712U)
s->workaround_bugs|= FF_BUG_DC_CLIP;
- if(s->divx_version)
+ if(s->divx_version>=0)
s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;
//printf("padding_bug_score: %d\n", s->padding_bug_score);
if(s->divx_version==501 && s->divx_build==20020416)
s->padding_bug_score= 256*256*256*64;
- if(s->divx_version && s->divx_version<500){
+ if(s->divx_version<500U){
s->workaround_bugs|= FF_BUG_EDGE;
}
- if(s->divx_version)
+ if(s->divx_version>=0)
s->workaround_bugs|= FF_BUG_HPEL_CHROMA;
#if 0
if(s->divx_version==500)
/* very ugly XVID padding bug detection FIXME/XXX solve this differently
* Let us hope this at least works.
*/
- if( s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0
+ if( s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==-1
&& s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)
s->workaround_bugs|= FF_BUG_NO_PADDING;
- if(s->lavc_build && s->lavc_build<4609) //FIXME not sure about the version num but a 4609 file seems ok
+ if(s->lavc_build<4609U) //FIXME not sure about the version num but a 4609 file seems ok
s->workaround_bugs|= FF_BUG_NO_PADDING;
#endif
}
#endif
#if HAVE_MMX
- if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){
+ if (s->codec_id == CODEC_ID_MPEG4 && s->xvid_build>=0 && avctx->idct_algo == FF_IDCT_AUTO && (av_get_cpu_flags() & AV_CPU_FLAG_MMX)) {
avctx->idct_algo= FF_IDCT_XVIDMMX;
avctx->coded_width= 0; // force reinit
// dsputil_init(&s->dsp, avctx);
if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P || s->codec_id == CODEC_ID_H263I))
s->gob_index = ff_h263_get_gob_height(s);
- // for hurry_up==5
+ // for skipping the frame
s->current_picture.pict_type= s->pict_type;
s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
/* skip B-frames if we don't have reference frames */
if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, buf_size);
+#if FF_API_HURRY_UP
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, buf_size);
+#endif
if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)
|| (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
|| avctx->skip_frame >= AVDISCARD_ALL)
return get_consumed_bytes(s, buf_size);
+#if FF_API_HURRY_UP
/* skip everything if we are in a hurry>=5 */
if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);
+#endif
if(s->next_p_frame_damaged){
if(s->pict_type==FF_B_TYPE)
if(MPV_frame_start(s, avctx) < 0)
return -1;
+ if (CONFIG_MPEG4_VDPAU_DECODER && (s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) {
+ ff_vdpau_mpeg4_decode_picture(s, s->gb.buffer, s->gb.buffer_end - s->gb.buffer);
+ goto frame_end;
+ }
+
if (avctx->hwaccel) {
- if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
+ if (avctx->hwaccel->start_frame(avctx, s->gb.buffer, s->gb.buffer_end - s->gb.buffer) < 0)
return -1;
}
-#ifdef DEBUG
- av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
-#endif
-
ff_er_frame_start(s);
//the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;
}
+ assert(s->bitstream_buffer_size==0);
+frame_end:
/* divx 5.01+ bistream reorder stuff */
- if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){
+ if(s->codec_id==CODEC_ID_MPEG4 && s->divx_packed){
int current_pos= get_bits_count(&s->gb)>>3;
int startcode_found=0;
}
}
}
- if(s->gb.buffer == s->bitstream_buffer && buf_size>20){ //xvid style
+ if(s->gb.buffer == s->bitstream_buffer && buf_size>7 && s->xvid_build>=0){ //xvid style
startcode_found=1;
current_pos=0;
}
ff_print_debug_info(s, pict);
}
- /* Return the Picture timestamp as the frame number */
- /* we subtract 1 because it is added on utils.c */
- avctx->frame_number = s->picture_number - 1;
-
#ifdef PRINT_FRAME_TIME
av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);
#endif
return get_consumed_bytes(s, buf_size);
}
-AVCodec mpeg4_decoder = {
- "mpeg4",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MPEG4,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
- .flush= ff_mpeg_flush,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
- .pix_fmts= ff_hwaccel_pixfmt_list_420,
-};
-
-AVCodec h263_decoder = {
+AVCodec ff_h263_decoder = {
"h263",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_H263,
sizeof(MpegEncContext),
ff_h263_decode_init,
ff_h263_decode_frame,
CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
.pix_fmts= ff_hwaccel_pixfmt_list_420,
};
-
-AVCodec msmpeg4v1_decoder = {
- "msmpeg4v1",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V1,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
- .pix_fmts= ff_pixfmt_list_420,
-};
-
-AVCodec msmpeg4v2_decoder = {
- "msmpeg4v2",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V2,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
- .pix_fmts= ff_pixfmt_list_420,
-};
-
-AVCodec msmpeg4v3_decoder = {
- "msmpeg4",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V3,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
- .pix_fmts= ff_pixfmt_list_420,
-};
-
-AVCodec wmv1_decoder = {
- "wmv1",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV1,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
- .pix_fmts= ff_pixfmt_list_420,
-};
-
-AVCodec h263i_decoder = {
- "h263i",
- CODEC_TYPE_VIDEO,
- CODEC_ID_H263I,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Intel H.263"),
- .pix_fmts= ff_pixfmt_list_420,
-};
-
-AVCodec flv_decoder = {
- "flv",
- CODEC_TYPE_VIDEO,
- CODEC_ID_FLV1,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV)"),
- .pix_fmts= ff_pixfmt_list_420,
-};
projects / ffmpeg / blobdiff