seeking code moved out from mplayer.c -> seek.c

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1406 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 9 insertions, 226 deletions

diff --git a/mplayer.c b/mplayer.c
index 1c3d7e84ea..434e17b407 100644
--- a/mplayer.c
+++ b/mplayer.c
@@ -159,6 +159,7 @@ int asf_check_header(demuxer_t *demuxer);
 int read_asf_header(demuxer_t *demuxer);
 
 demuxer_t* demux_open(stream_t *stream,int file_format);
+int demux_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
 
 // MPEG video stream parser:
 #include "parse_es.h"
@@ -1524,231 +1525,13 @@ if(1)
   }
   
   if(rel_seek_secs)
-  if(file_format==DEMUXER_TYPE_AVI && demuxer->idx_size<=0){
-    printf("Can't seek in raw .AVI streams! (index required, try with the -idx switch!)  \n");
-  } else {
-    int skip_audio_bytes=0;
-    float skip_audio_secs=0;
-
-    // clear demux buffers:
-    if(sh_audio){ ds_free_packs(d_audio);sh_audio->a_buffer_len=0;}
-    ds_free_packs(d_video);
-    
-//    printf("sh_audio->a_buffer_len=%d  \n",sh_audio->a_buffer_len);
-    
-
-switch(file_format){
-
-  case DEMUXER_TYPE_AVI: {
-  //================= seek in AVI ==========================
-    int rel_seek_frames=rel_seek_secs*sh_video->fps;
-    int curr_audio_pos=0;
-    int audio_chunk_pos=-1;
-    int video_chunk_pos=d_video->pos;
-    
-      skip_video_frames=0;
-      avi_audio_pts=0;
-
-      // find nearest video keyframe chunk pos:
-      if(rel_seek_frames>0){
-        // seek forward
-        while(video_chunk_pos<demuxer->idx_size){
-          int id=((AVIINDEXENTRY *)demuxer->idx)[video_chunk_pos].ckid;
-          if(avi_stream_id(id)==d_video->id){  // video frame
-            if((--rel_seek_frames)<0 && ((AVIINDEXENTRY *)demuxer->idx)[video_chunk_pos].dwFlags&AVIIF_KEYFRAME) break;
-            ++skip_audio_bytes;
-          }
-          ++video_chunk_pos;
-        }
-      } else {
-        // seek backward
-        while(video_chunk_pos>=0){
-          int id=((AVIINDEXENTRY *)demuxer->idx)[video_chunk_pos].ckid;
-          if(avi_stream_id(id)==d_video->id){  // video frame
-            if((++rel_seek_frames)>0 && ((AVIINDEXENTRY *)demuxer->idx)[video_chunk_pos].dwFlags&AVIIF_KEYFRAME) break;
-            --skip_audio_bytes;
-          }
-          --video_chunk_pos;
-        }
-      }
-      demuxer->idx_pos_a=demuxer->idx_pos_v=demuxer->idx_pos=video_chunk_pos;
-//      printf("%d frames skipped\n",skip_audio_bytes);
-
-      // re-calc video pts:
-      d_video->pack_no=0;
-      for(i=0;i<video_chunk_pos;i++){
-          int id=((AVIINDEXENTRY *)demuxer->idx)[i].ckid;
-          if(avi_stream_id(id)==d_video->id) ++d_video->pack_no;
-      }
-      sh_video->num_frames=d_video->pack_no;
-      avi_video_pts=d_video->pack_no*(float)sh_video->video.dwScale/(float)sh_video->video.dwRate;
-
-      if(sh_audio){
-        int i;
-        int apos=0;
-        int last=0;
-        int len=0;
-
-        // calc new audio position in audio stream: (using avg.bps value)
-        curr_audio_pos=(avi_video_pts) * sh_audio->wf->nAvgBytesPerSec;
-        if(curr_audio_pos<0)curr_audio_pos=0;
-#if 1
-        curr_audio_pos&=~15; // requires for PCM formats!!!
-#else
-        curr_audio_pos/=sh_audio->wf->nBlockAlign;
-        curr_audio_pos*=sh_audio->wf->nBlockAlign;
-        demuxer->audio_seekable=1;
-#endif
-
-        // find audio chunk pos:
-          for(i=0;i<video_chunk_pos;i++){
-            int id=((AVIINDEXENTRY *)demuxer->idx)[i].ckid;
-            if(avi_stream_id(id)==d_audio->id){
-                len=((AVIINDEXENTRY *)demuxer->idx)[i].dwChunkLength;
-                last=i;
-                if(apos<=curr_audio_pos && curr_audio_pos<(apos+len)){
-                  if(verbose)printf("break;\n");
-                  break;
-                }
-                apos+=len;
-            }
-          }
-          if(verbose)printf("XXX i=%d  last=%d  apos=%d  curr_audio_pos=%d  \n",
-           i,last,apos,curr_audio_pos);
-//          audio_chunk_pos=last; // maybe wrong (if not break; )
-          audio_chunk_pos=i; // maybe wrong (if not break; )
-          skip_audio_bytes=curr_audio_pos-apos;
-
-          // update stream position:
-          d_audio->pos=audio_chunk_pos;
-          d_audio->dpos=apos;
-	  d_audio->pts=initial_pts_delay+(float)apos/(float)sh_audio->wf->nAvgBytesPerSec;
-          demuxer->idx_pos_a=demuxer->idx_pos_v=demuxer->idx_pos=audio_chunk_pos;
-
-          if(!(sh_audio->codec->flags&CODECS_FLAG_SEEKABLE)){
-#if 0
-//             curr_audio_pos=apos; // selected audio codec can't seek in chunk
-             skip_audio_secs=(float)skip_audio_bytes/(float)sh_audio->wf->nAvgBytesPerSec;
-             //printf("Seek_AUDIO: %d bytes --> %5.3f secs\n",skip_audio_bytes,skip_audio_secs);
-             skip_audio_bytes=0;
-#else
-             int d=skip_audio_bytes % sh_audio->wf->nBlockAlign;
-             skip_audio_bytes-=d;
-//             curr_audio_pos-=d;
-             skip_audio_secs=(float)d/(float)sh_audio->wf->nAvgBytesPerSec;
-             //printf("Seek_AUDIO: %d bytes --> %5.3f secs\n",d,skip_audio_secs);
-#endif
-          }
-          // now: audio_chunk_pos=pos in index
-          //      skip_audio_bytes=bytes to skip from that chunk
-          //      skip_audio_secs=time to play audio before video (if can't skip)
-          
-          // calc skip_video_frames & adjust video pts counter:
-//          i=last;
-	  for(i=demuxer->idx_pos;i<video_chunk_pos;i++){
-            int id=((AVIINDEXENTRY *)demuxer->idx)[i].ckid;
-            if(avi_stream_id(id)==d_video->id) ++skip_video_frames;
-          }
-          // requires for correct audio pts calculation (demuxer):
-          avi_video_pts-=skip_video_frames*(float)sh_video->video.dwScale/(float)sh_video->video.dwRate;
-          
-      }
-
-      if(verbose) printf("SEEK: idx=%d  (a:%d v:%d)  v.skip=%d  a.skip=%d/%4.3f  \n",
-        demuxer->idx_pos,audio_chunk_pos,video_chunk_pos,
-        skip_video_frames,skip_audio_bytes,skip_audio_secs);
-
-  }
-  break;
-
-  case DEMUXER_TYPE_ASF: {
-  //================= seek in ASF ==========================
-    float p_rate=10; // packets / sec
-    int rel_seek_packs=rel_seek_secs*p_rate;
-    int rel_seek_bytes=rel_seek_packs*asf_packetsize;
-    int newpos;
-    //printf("ASF: packs: %d  duration: %d  \n",(int)fileh.packets,*((int*)&fileh.duration));
-//    printf("ASF_seek: %d secs -> %d packs -> %d bytes  \n",
-//       rel_seek_secs,rel_seek_packs,rel_seek_bytes);
-    newpos=demuxer->filepos+rel_seek_bytes;
-    if(newpos<0 || newpos<demuxer->movi_start) newpos=demuxer->movi_start;
-//    printf("\r -- asf: newpos=%d -- \n",newpos);
-    stream_seek(demuxer->stream,newpos);
-
-    ds_fill_buffer(d_video);
-    if(sh_audio) ds_fill_buffer(d_audio);
-    
-    while(1){
-	if(sh_audio){
-	  // sync audio:
-          if (d_video->pts > d_audio->pts){
-	      if(!ds_fill_buffer(d_audio)) sh_audio=NULL; // skip audio. EOF?
-	      continue;
-	  }
-	}
-	if(d_video->flags&1) break; // found a keyframe!
-	if(!ds_fill_buffer(d_video)) break; // skip frame.  EOF?
-    }
-
-  }
-  break;
-  
-  case DEMUXER_TYPE_MPEG_ES:
-  case DEMUXER_TYPE_MPEG_PS: {
-  //================= seek in MPEG ==========================
-        int newpos;
-        if(!sh_video->i_bps) // unspecified?
-          newpos=demuxer->filepos+2324*75*rel_seek_secs; // 174.3 kbyte/sec
-        else
-          newpos=demuxer->filepos+(sh_video->i_bps)*rel_seek_secs;
-
-        if(newpos<seek_to_byte) newpos=seek_to_byte;
-        newpos&=~(STREAM_BUFFER_SIZE-1);  /* sector boundary */
-        stream_seek(demuxer->stream,newpos);
-        // re-sync video:
-        videobuf_code_len=0; // reset ES stream buffer
-        while(1){
-          int i=sync_video_packet(d_video);
-          if(i==0x1B3 || i==0x1B8) break; // found it!
-          if(!i || !skip_video_packet(d_video)){ eof=1; break;} // EOF
-        }
-  }
-  break;
-
-} // switch(file_format)
+  if(demux_seek(demuxer,rel_seek_secs,0)){
+      // success:
 
-      //====================== re-sync audio: =====================
       if(sh_audio){
-
-        if(skip_audio_bytes){
-          demux_read_data(d_audio,NULL,skip_audio_bytes);
-          //d_audio->pts=0; // PTS is outdated because of the raw data skipping
-        }
-        
-        current_module="resync_audio";
-	resync_audio_stream(sh_audio);
-
-        // re-sync PTS (MPEG-PS only!!!)
-        if(file_format==DEMUXER_TYPE_MPEG_PS)
-        if(d_video->pts && d_audio->pts){
-          if (d_video->pts < d_audio->pts){
-          
-          } else {
-            while(d_video->pts > d_audio->pts){
-	      skip_audio_frame(sh_audio);
-            }
-          }
-        }
-
         current_module="audio_reset";
         audio_out->reset(); // stop audio, throwing away buffered data
         current_module=NULL;
-
-        c_total=0; // kell ez?
-        printf("A:%6.1f  V:%6.1f  A-V:%7.3f",d_audio->pts,d_video->pts,0.0f);
-        printf("  ct:%7.3f   \r",c_total);fflush(stdout);
-      } else {
-        printf("A: ---   V:%6.1f   \r",d_video->pts);fflush(stdout);
       }
 
         // Set OSD:
@@ -1760,17 +1543,17 @@ switch(file_format){
           vo_osd_progbar_value=(demuxer->filepos-demuxer->movi_start)/len;
         }
       }
-
+      
+      c_total=0; // kell ez?
       max_pts_correction=0.1;
-      frame_corr_num=0; // -5
+      frame_corr_num=0; // -5   FIXME!!!
       frame_correction=0;
       force_redraw=5;
-      if(sh_audio) sh_audio->timer=-skip_audio_secs;
-      sh_video->timer=0; // !!!!!!
       audio_time_usage=0; video_time_usage=0; vout_time_usage=0;
-
+  
   }
- rel_seek_secs=0;
+  rel_seek_secs=0;
+  
 } // keyboard event handler
 
 //================= Update OSD ====================