libhb/muxcommon.c

   1 /* $Id: muxcommon.c,v 1.23 2005/03/30 17:27:19 titer Exp $
   2
   3    This file is part of the HandBrake source code.
   4    Homepage: <http://handbrake.m0k.org/>.
   5    It may be used under the terms of the GNU General Public License. */
   6
   7 #include "hb.h"
   8
   9 struct hb_mux_object_s
  10 {
  11     HB_MUX_COMMON;
  12 };
  13
  14 typedef struct
  15 {
  16     hb_job_t * job;
  17     uint64_t   pts;
  18
  19 } hb_mux_t;
  20
  21 typedef struct
  22 {
  23     hb_fifo_t     * fifo;
  24     hb_mux_data_t * mux_data;
  25     uint64_t        frames;
  26     uint64_t        bytes;
  27
  28 } hb_track_t;
  29
  30 static hb_track_t * GetTrack( hb_list_t * list )
  31 {
  32     hb_buffer_t * buf;
  33     hb_track_t  * track = NULL, * track2;
  34     int64_t       pts = 0;
  35     int           i;
  36
  37     for( i = 0; i < hb_list_count( list ); i++ )
  38     {
  39         track2 = hb_list_item( list, i );
  40         buf    = hb_fifo_see( track2->fifo );
  41         if( !buf )
  42         {
  43             return NULL;
  44         }
  45         if( !track || buf->start < pts )
  46         {
  47             track = track2;
  48             pts   = buf->start;
  49         }
  50     }
  51     return track;
  52 }
  53
  54 static void MuxerFunc( void * _mux )
  55 {
  56     hb_mux_t    * mux = _mux;
  57     hb_job_t    * job = mux->job;
  58     hb_title_t  * title = job->title;
  59     hb_audio_t  * audio;
  60     hb_list_t   * list;
  61     hb_buffer_t * buf;
  62     hb_track_t  * track;
  63     int           i;
  64
  65     hb_mux_object_t * m = NULL;
  66
  67     /* Get a real muxer */
  68     if( job->pass != 1 )
  69     {
  70         switch( job->mux )
  71         {
  72             case HB_MUX_MP4:
  73             case HB_MUX_PSP:
  74                         case HB_MUX_IPOD:
  75                 m = hb_mux_mp4_init( job );
  76                 break;
  77             case HB_MUX_AVI:
  78                 m = hb_mux_avi_init( job );
  79                 break;
  80             case HB_MUX_OGM:
  81                 m = hb_mux_ogm_init( job );
  82                 break;
  83             case HB_MUX_MKV:
  84                 m = hb_mux_mkv_init( job );
  85         }
  86     }
  87
  88     /* Wait for one buffer for each track */
  89     while( !*job->die && !job->done )
  90     {
  91         int ready;
  92
  93         ready = 1;
  94         if( !hb_fifo_size( job->fifo_mpeg4 ) )
  95         {
  96             ready = 0;
  97         }
  98         for( i = 0; i < hb_list_count( title->list_audio ); i++ )
  99         {
 100             audio = hb_list_item( title->list_audio, i );
 101             if( !hb_fifo_size( audio->fifo_out ) )
 102             {
 103                 ready = 0;
 104                 break;
 105             }
 106         }
 107
 108         if( ready )
 109         {
 110             break;
 111         }
 112
 113         hb_snooze( 50 );
 114     }
 115
 116     /* Create file, write headers */
 117     if( job->pass != 1 )
 118     {
 119         m->init( m );
 120     }
 121
 122     /* Build list of fifos we're interested in */
 123     list = hb_list_init();
 124
 125     track           = calloc( sizeof( hb_track_t ), 1 );
 126     track->fifo     = job->fifo_mpeg4;
 127     track->mux_data = job->mux_data;
 128     hb_list_add( list, track );
 129
 130     for( i = 0; i < hb_list_count( title->list_audio ); i++ )
 131     {
 132         audio           = hb_list_item( title->list_audio, i );
 133         track           = calloc( sizeof( hb_track_t ), 1 );
 134         track->fifo     = audio->fifo_out;
 135         track->mux_data = audio->mux_data;
 136         hb_list_add( list, track );
 137     }
 138
 139         int thread_sleep_interval = 50;
 140         while( !*job->die && !job->done )
 141     {
 142         if( !( track = GetTrack( list ) ) )
 143         {
 144             hb_snooze( thread_sleep_interval );
 145 //                      thread_sleep_interval += 1;
 146             continue;
 147         }
 148 //              thread_sleep_interval = MAX(1, (thread_sleep_interval - 1));
 149
 150         buf = hb_fifo_get( track->fifo );
 151         if( job->pass != 1 )
 152         {
 153             m->mux( m, track->mux_data, buf );
 154             track->frames += 1;
 155             track->bytes  += buf->size;
 156             mux->pts = buf->stop;
 157         }
 158         hb_buffer_close( &buf );
 159     }
 160
 161     if( job->pass != 1 )
 162     {
 163         struct stat sb;
 164         uint64_t bytes_total, frames_total;
 165
 166 #define p state.param.muxing
 167         /* Update the UI */
 168         hb_state_t state;
 169         state.state   = HB_STATE_MUXING;
 170                 p.progress = 0;
 171         hb_set_state( job->h, &state );
 172 #undef p
 173         m->end( m );
 174
 175         if( !stat( job->file, &sb ) )
 176         {
 177             hb_log( "mux: file size, %lld bytes", (uint64_t) sb.st_size );
 178
 179             bytes_total  = 0;
 180             frames_total = 0;
 181             for( i = 0; i < hb_list_count( list ); i++ )
 182             {
 183                 track = hb_list_item( list, i );
 184                 hb_log( "mux: track %d, %lld bytes, %.2f kbps",
 185                         i, track->bytes,
 186                         90000.0 * track->bytes / mux->pts / 125 );
 187                 if( !i && ( job->vquality < 0.0 || job->vquality > 1.0 ) )
 188                 {
 189                     /* Video */
 190                     hb_log( "mux: video bitrate error, %+lld bytes",
 191                             track->bytes - mux->pts * job->vbitrate *
 192                             125 / 90000 );
 193                 }
 194                 bytes_total  += track->bytes;
 195                 frames_total += track->frames;
 196             }
 197
 198             if( bytes_total && frames_total )
 199             {
 200                 hb_log( "mux: overhead, %.2f bytes per frame",
 201                         (float) ( sb.st_size - bytes_total ) /
 202                         frames_total );
 203             }
 204         }
 205     }
 206
 207     free( m );
 208
 209     for( i = 0; i < hb_list_count( list ); i++ )
 210     {
 211         track = hb_list_item( list, i );
 212         if( track->mux_data )
 213         {
 214             free( track->mux_data );
 215         }
 216         free( track );
 217     }
 218     hb_list_close( &list );
 219
 220     free( mux );
 221 }
 222
 223 hb_thread_t * hb_muxer_init( hb_job_t * job )
 224 {
 225     hb_mux_t * mux = calloc( sizeof( hb_mux_t ), 1 );
 226     mux->job = job;
 227     return hb_thread_init( "muxer", MuxerFunc, mux,
 228                            HB_NORMAL_PRIORITY );
 229 }