diff options
author | Diego Biurrun <diego@biurrun.de> | 2005-12-17 18:14:38 +0000 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2005-12-17 18:14:38 +0000 |
commit | 115329f16062074e11ccf3b89ead6176606c9696 (patch) | |
tree | e98aa993905a702688bf821737ab9a443969fc28 /libavcodec/h263dec.c | |
parent | d76319b1ab716320f6e6a4d690b85fe4504ebd5b (diff) | |
download | ffmpeg-115329f16062074e11ccf3b89ead6176606c9696.tar.gz |
COSMETICS: Remove all trailing whitespace.
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h263dec.c')
-rw-r--r-- | libavcodec/h263dec.c | 158 |
1 files changed, 79 insertions, 79 deletions
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c index 87e11794e0..b93e2c505c 100644 --- a/libavcodec/h263dec.c +++ b/libavcodec/h263dec.c @@ -17,12 +17,12 @@ * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - + /** * @file h263dec.c * H.263 decoder. */ - + #include "avcodec.h" #include "dsputil.h" #include "mpegvideo.h" @@ -109,7 +109,7 @@ int ff_h263_decode_init(AVCodecContext *avctx) ff_msmpeg4_decode_init(s); else h263_decode_init_vlc(s); - + return 0; } @@ -126,10 +126,10 @@ int ff_h263_decode_end(AVCodecContext *avctx) */ static int get_consumed_bytes(MpegEncContext *s, int buf_size){ int pos= (get_bits_count(&s->gb)+7)>>3; - + if(s->divx_packed){ //we would have to scan through the whole buf to handle the weird reordering ... - return buf_size; + return buf_size; }else if(s->flags&CODEC_FLAG_TRUNCATED){ pos -= s->parse_context.last_index; if(pos<0) pos=0; // padding is not really read so this might be -1 @@ -147,20 +147,20 @@ static int decode_slice(MpegEncContext *s){ const int mb_size= 16>>s->avctx->lowres; s->last_resync_gb= s->gb; s->first_slice_line= 1; - + s->resync_mb_x= s->mb_x; s->resync_mb_y= s->mb_y; ff_set_qscale(s, s->qscale); - + if(s->partitioned_frame){ const int qscale= s->qscale; if(s->codec_id==CODEC_ID_MPEG4){ if(ff_mpeg4_decode_partitions(s) < 0) - return -1; + return -1; } - + /* restore variables which were modified */ s->first_slice_line=1; s->mb_x= s->resync_mb_x; @@ -177,13 +177,13 @@ static int decode_slice(MpegEncContext *s){ return 0; } } - + if(s->msmpeg4_version==1){ s->last_dc[0]= s->last_dc[1]= s->last_dc[2]= 128; } - + ff_init_block_index(s); for(; s->mb_x < s->mb_width; s->mb_x++) { int ret; @@ -191,11 +191,11 @@ static int decode_slice(MpegEncContext *s){ ff_update_block_index(s); if(s->resync_mb_x == s->mb_x && s->resync_mb_y+1 == s->mb_y){ - s->first_slice_line=0; + s->first_slice_line=0; } /* DCT & quantize */ - + s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; // s->mb_skipped = 0; @@ -216,13 +216,13 @@ static int decode_slice(MpegEncContext *s){ 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); s->padding_bug_score--; - + if(++s->mb_x >= s->mb_width){ s->mb_x=0; ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size); s->mb_y++; } - return 0; + return 0; }else if(ret==SLICE_NOEND){ av_log(s->avctx, AV_LOG_ERROR, "Slice mismatch at MB: %d\n", xy); ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x+1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask); @@ -230,7 +230,7 @@ static int decode_slice(MpegEncContext *s){ } av_log(s->avctx, AV_LOG_ERROR, "Error at MB: %d\n", xy); ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); - + return -1; } @@ -238,25 +238,25 @@ static int decode_slice(MpegEncContext *s){ if(s->loop_filter) ff_h263_loop_filter(s); } - + ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size); - + s->mb_x= 0; } - + assert(s->mb_x==0 && s->mb_y==s->mb_height); /* try to detect the padding bug */ if( s->codec_id==CODEC_ID_MPEG4 - && (s->workaround_bugs&FF_BUG_AUTODETECT) + && (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 // && !s->resync_marker && !s->data_partitioning){ - + const int bits_count= get_bits_count(&s->gb); const int bits_left = s->gb.size_in_bits - bits_count; - + if(bits_left==0){ s->padding_bug_score+=16; } else if(bits_left != 1){ @@ -268,10 +268,10 @@ static int decode_slice(MpegEncContext *s){ else if(v==0x7F && ((get_bits_count(&s->gb)+8)&8) && bits_left<=16) s->padding_bug_score+= 4; else - s->padding_bug_score++; - } + s->padding_bug_score++; + } } - + if(s->workaround_bugs&FF_BUG_AUTODETECT){ if(s->padding_bug_score > -2 && !s->data_partitioning /*&& (s->divx_version || !s->resync_marker)*/) s->workaround_bugs |= FF_BUG_NO_PADDING; @@ -283,17 +283,17 @@ static int decode_slice(MpegEncContext *s){ 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 max_extra=7; - + /* no markers in M$ crap */ if(s->msmpeg4_version && s->pict_type==I_TYPE) max_extra+= 17; - + /* buggy padding but the frame should still end approximately at the bitstream end */ if((s->workaround_bugs&FF_BUG_NO_PADDING) && s->error_resilience>=3) max_extra+= 48; else if((s->workaround_bugs&FF_BUG_NO_PADDING)) max_extra+= 256*256*256*64; - + if(left>max_extra){ av_log(s->avctx, AV_LOG_ERROR, "discarding %d junk bits at end, next would be %X\n", left, show_bits(&s->gb, 24)); } @@ -301,14 +301,14 @@ static int decode_slice(MpegEncContext *s){ av_log(s->avctx, AV_LOG_ERROR, "overreading %d bits\n", -left); }else ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END); - + return 0; } - av_log(s->avctx, AV_LOG_ERROR, "slice end not reached but screenspace end (%d left %06X, score= %d)\n", + 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), 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); return -1; @@ -321,10 +321,10 @@ static int decode_slice(MpegEncContext *s){ int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){ int vop_found, i; uint32_t state; - + vop_found= pc->frame_start_found; state= pc->state; - + i=0; if(!vop_found){ for(i=0; i<buf_size; i++){ @@ -345,7 +345,7 @@ int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){ state= (state<<8) | buf[i]; if((state&0xFFFFFF00) == 0x100){ pc->frame_start_found=0; - pc->state=-1; + pc->state=-1; return i-3; } } @@ -358,10 +358,10 @@ int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){ static int h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){ int vop_found, i; uint32_t state; - + vop_found= pc->frame_start_found; state= pc->state; - + i=0; if(!vop_found){ for(i=0; i<buf_size; i++){ @@ -374,30 +374,30 @@ static int h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_siz } } - if(vop_found){ + if(vop_found){ for(; i<buf_size; i++){ state= (state<<8) | buf[i]; if(state>>(32-22) == 0x20){ pc->frame_start_found=0; - pc->state=-1; + pc->state=-1; return i-3; } } } pc->frame_start_found= vop_found; pc->state= state; - + return END_NOT_FOUND; } static int h263_parse(AVCodecParserContext *s, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { ParseContext *pc = s->priv_data; int next; - + next= h263_find_frame_end(pc, buf, buf_size); if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) { @@ -411,14 +411,14 @@ static int h263_parse(AVCodecParserContext *s, return next; } -int ff_h263_decode_frame(AVCodecContext *avctx, +int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { MpegEncContext *s = avctx->priv_data; int ret; - AVFrame *pict = data; - + AVFrame *pict = data; + #ifdef PRINT_FRAME_TIME uint64_t time= rdtsc(); #endif @@ -444,7 +444,7 @@ uint64_t time= rdtsc(); if(s->flags&CODEC_FLAG_TRUNCATED){ int next; - + if(s->codec_id==CODEC_ID_MPEG4){ next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size); }else if(s->codec_id==CODEC_ID_H263){ @@ -453,14 +453,14 @@ uint64_t time= rdtsc(); av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n"); return -1; } - + if( ff_combine_frame(&s->parse_context, next, &buf, &buf_size) < 0 ) return buf_size; } - + retry: - + if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ //divx 5.01+/xvid frame reorder init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8); }else @@ -471,13 +471,13 @@ retry: if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix return -1; } - + //we need to set current_picture_ptr before reading the header, otherwise we cant store anyting im there if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){ int i= ff_find_unused_picture(s, 0); s->current_picture_ptr= &s->picture[i]; } - + /* let's go :-) */ if (s->msmpeg4_version==5) { ret= ff_wmv2_decode_picture_header(s); @@ -486,7 +486,7 @@ retry: } else if (s->h263_pred) { if(s->avctx->extradata_size && s->picture_number==0){ GetBitContext gb; - + init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8); ret = ff_mpeg4_decode_picture_header(s, &gb); } @@ -501,7 +501,7 @@ retry: } else { ret = h263_decode_picture_header(s); } - + if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size); /* skip if the header was thrashed */ @@ -509,16 +509,16 @@ retry: av_log(s->avctx, AV_LOG_ERROR, "header damaged\n"); return -1; } - + avctx->has_b_frames= !s->low_delay; - + if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){ - if(s->avctx->stream_codec_tag == ff_get_fourcc("XVID") || + if(s->avctx->stream_codec_tag == ff_get_fourcc("XVID") || s->avctx->codec_tag == ff_get_fourcc("XVID") || s->avctx->codec_tag == ff_get_fourcc("XVIX")) s->xvid_build= -1; #if 0 if(s->avctx->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==1 - && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc + && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc s->xvid_build= -1; #endif } @@ -527,14 +527,14 @@ retry: if(s->avctx->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==0) s->divx_version= 400; //divx 4 } - + if(s->xvid_build && s->divx_version){ s->divx_version= s->divx_build= 0; } if(s->workaround_bugs&FF_BUG_AUTODETECT){ - if(s->avctx->codec_tag == ff_get_fourcc("XVIX")) + if(s->avctx->codec_tag == ff_get_fourcc("XVIX")) s->workaround_bugs|= FF_BUG_XVID_ILACE; if(s->avctx->codec_tag == ff_get_fourcc("UMP4")){ @@ -551,7 +551,7 @@ retry: if(s->xvid_build && s->xvid_build<=3) s->padding_bug_score= 256*256*256*64; - + if(s->xvid_build && s->xvid_build<=1) s->workaround_bugs|= FF_BUG_QPEL_CHROMA; @@ -568,14 +568,14 @@ retry: if(s->lavc_build && s->lavc_build<4653) s->workaround_bugs|= FF_BUG_STD_QPEL; - + if(s->lavc_build && s->lavc_build<4655) s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE; if(s->lavc_build && s->lavc_build<4670){ s->workaround_bugs|= FF_BUG_EDGE; } - + if(s->lavc_build && s->lavc_build<=4712) s->workaround_bugs|= FF_BUG_DC_CLIP; @@ -588,7 +588,7 @@ retry: if(s->divx_version && s->divx_version<500){ s->workaround_bugs|= FF_BUG_EDGE; } - + if(s->divx_version) s->workaround_bugs|= FF_BUG_HPEL_CHROMA; #if 0 @@ -601,12 +601,12 @@ retry: if( s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0 && 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 s->workaround_bugs|= FF_BUG_NO_PADDING; #endif } - + if(s->workaround_bugs& FF_BUG_STD_QPEL){ SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c) SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c) @@ -624,10 +624,10 @@ retry: } if(avctx->debug & FF_DEBUG_BUGS) - av_log(s->avctx, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n", + av_log(s->avctx, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n", s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build, s->divx_packed ? "p" : ""); - + #if 0 // dump bits per frame / qp / complexity { static FILE *f=NULL; @@ -647,8 +647,8 @@ retry: /* and other parameters. So then we could init the picture */ /* FIXME: By the way H263 decoder is evolving it should have */ /* an H263EncContext */ - - if ( s->width != avctx->coded_width + + if ( s->width != avctx->coded_width || s->height != avctx->coded_height) { /* H.263 could change picture size any time */ ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat @@ -664,7 +664,7 @@ retry: if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P)) s->gob_index = ff_h263_get_gob_height(s); - + // for hurry_up==5 s->current_picture.pict_type= s->pict_type; s->current_picture.key_frame= s->pict_type == I_TYPE; @@ -675,11 +675,11 @@ retry: if(avctx->hurry_up && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size); if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==B_TYPE) || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=I_TYPE) - || avctx->skip_frame >= AVDISCARD_ALL) + || avctx->skip_frame >= AVDISCARD_ALL) return get_consumed_bytes(s, buf_size); /* skip everything if we are in a hurry>=5 */ if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size); - + if(s->next_p_frame_damaged){ if(s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size); @@ -695,7 +695,7 @@ retry: #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 //which isnt available before MPV_frame_start() if (s->msmpeg4_version==5){ @@ -704,9 +704,9 @@ retry: } /* decode each macroblock */ - s->mb_x=0; + s->mb_x=0; s->mb_y=0; - + decode_slice(s); while(s->mb_y<s->mb_height){ if(s->msmpeg4_version){ @@ -716,7 +716,7 @@ retry: if(ff_h263_resync(s)<0) break; } - + if(s->msmpeg4_version<4 && s->h263_pred) ff_mpeg4_clean_buffers(s); @@ -727,12 +727,12 @@ retry: if(msmpeg4_decode_ext_header(s, buf_size) < 0){ s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR; } - + /* divx 5.01+ bistream reorder stuff */ if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){ int current_pos= get_bits_count(&s->gb)>>3; int startcode_found=0; - + if(buf_size - current_pos > 5){ int i; for(i=current_pos; i<buf_size-3; i++){ @@ -749,8 +749,8 @@ retry: if(startcode_found){ s->bitstream_buffer= av_fast_realloc( - s->bitstream_buffer, - &s->allocated_bitstream_buffer_size, + s->bitstream_buffer, + &s->allocated_bitstream_buffer_size, buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE); memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos); s->bitstream_buffer_size= buf_size - current_pos; |