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real.c
资源名称：vlc-0.8.1.tar.gz　[点击查看]
上传用户：riyaled888
上传日期：2009-03-27
资源大小：7338k
文件大小：30k
源码类别：

多媒体

开发平台：

MultiPlatform

real.c：源码内容
  1. /*****************************************************************************
  2.  * real.c: Real demuxer.
  3.  *****************************************************************************
  4.  * Copyright (C) 2004 VideoLAN
  5.  * $Id: real.c 9014 2004-10-18 23:05:30Z hartman $
  6.  *
  7.  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  8.  *
  9.  * This program is free software; you can redistribute it and/or modify
  10.  * it under the terms of the GNU General Public License as published by
  11.  * the Free Software Foundation; either version 2 of the License, or
  12.  * (at your option) any later version.
  13.  *
  14.  * This program is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17.  * GNU General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU General Public License
  20.  * along with this program; if not, write to the Free Software
  21.  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22.  *****************************************************************************/
  24. /*****************************************************************************
  25.  * Preamble
  26.  *****************************************************************************/
  27. #include <stdlib.h>                                      /* malloc(), free() */
  29. #include <vlc/vlc.h>
  30. #include <vlc/input.h>
  32. /*****************************************************************************
  33.  * Module descriptor
  34.  *****************************************************************************/
  35. static int  Open    ( vlc_object_t * );
  36. static void Close  ( vlc_object_t * );
  38. vlc_module_begin();
  39.     set_description( _("Real demuxer" ) );
  40.     set_capability( "demux2", 15 );
  41.     set_callbacks( Open, Close );
  42.     add_shortcut( "real" );
  43.     add_shortcut( "rm" );
  44. vlc_module_end();
  46. /*****************************************************************************
  47.  * Local prototypes
  48.  *****************************************************************************/
  50. typedef struct
  51. {
  52.     int         i_id;
  53.     es_format_t fmt;
  55.     es_out_id_t *p_es;
  57.     int         i_frame;
  58.     block_t     *p_frame;
  60. } real_track_t;
  62. struct demux_sys_t
  63. {
  64.     int64_t  i_data_offset;
  65.     int64_t  i_data_size;
  66.     uint32_t i_data_packets_count;
  67.     uint32_t i_data_packets;
  68.     int64_t  i_data_offset_next;
  70.     int          i_track;
  71.     real_track_t **track;
  73.     uint8_t buffer[65536];
  75.     int64_t     i_pcr;
  76. };
  78. static int Demux( demux_t *p_demux );
  79. static int Control( demux_t *p_demux, int i_query, va_list args );
  81. static int HeaderRead( demux_t *p_demux );
  83. /*****************************************************************************
  84.  * Open
  85.  *****************************************************************************/
  86. static int Open( vlc_object_t *p_this )
  87. {
  88.     demux_t     *p_demux = (demux_t*)p_this;
  89.     demux_sys_t *p_sys;
  91.     uint8_t     *p_peek;
  93.     if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 )
  94.     {
  95.         msg_Err( p_demux, "cannot peek" );
  96.         return VLC_EGENERIC;
  97.     }
  98.     if( strncmp( p_peek, ".RMF", 4 ) )
  99.     {
  100.         msg_Warn( p_demux, "Real module discarded" );
  101.         return VLC_EGENERIC;
  102.     }
  104.     /* Fill p_demux field */
  105.     p_demux->pf_demux = Demux;
  106.     p_demux->pf_control = Control;
  107.     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
  108.     p_sys->i_data_offset = 0;
  109.     p_sys->i_track = 0;
  110.     p_sys->track   = NULL;
  111.     p_sys->i_pcr   = 1;
  114.     /* Parse the headers */
  115.     if( HeaderRead( p_demux ) )
  116.     {
  117.         int i;
  118.         msg_Err( p_demux, "invalid header" );
  119.         for( i = 0; i < p_sys->i_track; i++ )
  120.         {
  121.             real_track_t *tk = p_sys->track[i];
  123.             if( tk->p_es )
  124.             {
  125.                 es_out_Del( p_demux->out, tk->p_es );
  126.             }
  127.             free( tk );
  128.         }
  129.         if( p_sys->i_track > 0 )
  130.         {
  131.             free( p_sys->track );
  132.         }
  133.         free( p_sys );
  134.         return VLC_EGENERIC;
  135.     }
  137.     return VLC_SUCCESS;
  138. }
  140. /*****************************************************************************
  141.  * Close
  142.  *****************************************************************************/
  143. static void Close( vlc_object_t *p_this )
  144. {
  145.     demux_t *p_demux = (demux_t*)p_this;
  146.     demux_sys_t *p_sys = p_demux->p_sys;
  147.     int i;
  149.     for( i = 0; i < p_sys->i_track; i++ )
  150.     {
  151.         real_track_t *tk = p_sys->track[i];
  153.         if( tk->p_frame )
  154.         {
  155.             block_Release( tk->p_frame );
  156.         }
  157.         free( tk );
  158.     }
  160.     if( p_sys->i_track > 0 )
  161.     {
  162.         free( p_sys->track );
  163.     }
  165.     free( p_sys );
  166. }
  169. /*****************************************************************************
  170.  * Demux:
  171.  *****************************************************************************/
  172. static int Demux( demux_t *p_demux )
  173. {
  174.     demux_sys_t *p_sys = p_demux->p_sys;
  175.     uint8_t     header[18];
  176.     int         i_size;
  177.     int         i_id;
  178.     int64_t     i_pts;
  179.     int         i;
  180.     real_track_t *tk = NULL;
  181.     vlc_bool_t  b_selected;
  183.     if( p_sys->i_data_packets >= p_sys->i_data_packets_count )
  184.     {
  186.         if( stream_Read( p_demux->s, header, 18 ) < 18 )
  187.         {
  188.             return 0;
  189.         }
  190.         if( strncmp( header, "DATA", 4 ) )
  191.         {
  192.             return 0;
  193.         }
  194.         p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
  195.         p_sys->i_data_size   = GetDWBE( &header[4] );
  196.         p_sys->i_data_packets_count = GetDWBE( &header[10] );
  197.         p_sys->i_data_packets = 0;
  198.         p_sys->i_data_offset_next = GetDWBE( &header[14] );
  200.         msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
  201.                  p_sys->i_data_packets_count,
  202.                  (uint32_t)p_sys->i_data_offset_next );
  203.     }
  205.     if( stream_Read( p_demux->s, header, 12 ) < 12 )
  206.     {
  207.         return 0;
  208.     }
  209.     i_size = GetWBE( &header[2] ) - 12;
  210.     i_id   = GetWBE( &header[4] );
  211.     i_pts  = 1000 * GetDWBE( &header[6] );
  212.     /* header[11] -> flags 0x02 -> keyframe */
  213.     msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
  214.              p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
  215.     p_sys->i_data_packets++;
  217.     stream_Read( p_demux->s, p_sys->buffer, i_size );
  219.     for( i = 0; i < p_sys->i_track; i++ )
  220.     {
  221.         if( p_sys->track[i]->i_id == i_id )
  222.         {
  223.             tk = p_sys->track[i];
  224.         }
  225.     }
  227.     if( tk == NULL )
  228.     {
  229.         msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
  230.         return 1;
  231.     }
  232.     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
  234.     if( tk->fmt.i_cat == VIDEO_ES && b_selected )
  235.     {
  236.         uint8_t     *p = p_sys->buffer;
  238.         while( p < &p_sys->buffer[i_size - 2] )
  239.         {
  240.             uint8_t h = *p++;
  241.             int     i_len = 0;
  242.             int     i_copy;
  243.             int     i_subseq = 0;
  244.             int     i_seqnum = 0;
  245.             int     i_offset = 0;
  247.             if( (h&0xc0) == 0x40 )
  248.             {
  249.                 /* Short header */
  250.                 p++;
  251.                 i_len = &p_sys->buffer[i_size] - p;
  252.             }
  253.             else
  254.             {
  255.                 if( (h&0x40) == 0 )
  256.                 {
  257.                     i_subseq = (*p++)&0x7f;
  258.                 }
  259.                 i_len = (p[0] << 8)|p[1]; p += 2;
  260.                 if( (i_len&0xc000) == 0 )
  261.                 {
  262.                     i_len <<= 16;
  263.                     i_len |= (p[0] << 8)|p[1]; p += 2;
  264.                     i_len &= 0x3fffffff;
  265.                 }
  266.                 else
  267.                 {
  268.                     i_len &= 0x3fff;
  269.                 }
  271.                 i_offset = (p[0] << 8)|p[1]; p += 2;
  272.                 if( (i_offset&0xc000) == 0 )
  273.                 {
  274.                     i_offset <<= 16;
  275.                     i_offset |= (p[0] << 8)|p[1]; p += 2;
  276.                     i_offset &= 0x3fffffff;
  277.                 }
  278.                 else
  279.                 {
  280.                     i_offset &= 0x3fff;
  281.                 }
  282.                 i_seqnum = *p++;
  283.             }
  284.             i_copy = i_len - i_offset;
  285.             if( i_copy > &p_sys->buffer[i_size] - p )
  286.             {
  287.                 i_copy = &p_sys->buffer[i_size] - p;
  288.             }
  289.             else if( i_copy < 0 )
  290.             {
  291.                 break;
  292.             }
  294.             msg_Dbg( p_demux, "    - len=%d offset=%d size=%d subseq=%d seqnum=%d",
  295.                      i_len, i_offset, i_copy, i_subseq, i_seqnum );
  297.             if( (h&0xc0) == 0x80 )
  298.             {
  299.                 /* last fragment -> fixes */
  300.                 i_copy = i_offset;
  301.                 i_offset = i_len - i_copy;
  302.                 msg_Dbg( p_demux, "last fixing copy=%d offset=%d", i_copy, i_offset );
  303.             }
  305.             if( tk->p_frame &&
  306.                 ( tk->p_frame->i_dts != i_pts ||
  307.                   tk->i_frame != i_len ) )
  308.             {
  309.                 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
  311.                 if( p_sys->i_pcr < tk->p_frame->i_dts )
  312.                 {
  313.                     p_sys->i_pcr = tk->p_frame->i_dts;
  315.                     es_out_Control( p_demux->out, ES_OUT_SET_PCR, (int64_t)p_sys->i_pcr );
  316.                 }
  317.                 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
  319.                 tk->i_frame = 0;
  320.                 tk->p_frame = NULL;
  321.             }
  323.             if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && tk->p_frame == NULL )
  324.             {
  325.                 /* no fragment */
  326.                 i_len = i_copy;
  327.                 i_offset = 0;
  328.             }
  331.             if( tk->p_frame == NULL )
  332.             {
  333.                 msg_Dbg( p_demux, "new frame size=%d", i_len );
  334.                 tk->i_frame = i_len;
  335.                 if( ( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) == NULL )
  336.                 {
  337.                     return -1;
  338.                 }
  339.                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
  340.                 tk->p_frame->i_dts = i_pts;
  341.                 tk->p_frame->i_pts = i_pts;
  343.                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
  344.                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0;      /* chunk counts */
  345.             }
  347.             if( i_offset < tk->i_frame)
  348.             {
  349.                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
  351.                 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d", i_ck, i_offset, i_copy );
  353.                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
  355.                 memcpy( &tk->p_frame->p_buffer[i_offset + 8],
  356.                         p, i_copy );
  357.             }
  359.             p += i_copy;
  361.             if( (h&0xc0) != 0x80 )
  362.             {
  363.                 break;
  364.             }
  365. #if 0
  366.             if( tk->p_frame )
  367.             {
  368.                 /* append data */
  369.                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
  371.                 if( (h&0xc0) == 0x80 )
  372.                 {
  373.                     /* last fragment */
  374.                     i_copy = i_offset;
  375.                     i_offset = i_len - i_offset;
  377.                     ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
  378.                     memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
  379.                     p += i_copy;
  381.                     if( p_sys->i_pcr < tk->p_frame->i_dts )
  382.                     {
  383.                         p_sys->i_pcr = tk->p_frame->i_dts;
  384.                         es_out_Control( p_demux->out, ES_OUT_SET_PCR, (int64_t)p_sys->i_pcr );
  385.                     }
  386.                     es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
  388.                     tk->i_frame = 0;
  389.                     tk->p_frame = NULL;
  391.                     continue;
  392.                 }
  394.                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
  395.                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
  396.                 break;
  397.             }
  399.             if( (h&0xc0) != 0x00 )
  400.             {
  401.                 block_t *p_frame;
  403.                 /* not fragmented */
  404.                 if( ( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) == NULL )
  405.                 {
  406.                     return -1;
  407.                 }
  408.                 p_frame->i_dts = i_pts;
  409.                 p_frame->i_pts = i_pts;
  411.                 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
  412.                 ((uint32_t*)p_frame->p_buffer)[1] = 1;
  413.                 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
  414.                 memcpy( &p_frame->p_buffer[8], p, i_copy );
  416.                 p += i_copy;
  418.                 if( p_sys->i_pcr < p_frame->i_dts )
  419.                 {
  420.                     p_sys->i_pcr = p_frame->i_dts;
  421.                     es_out_Control( p_demux->out, ES_OUT_SET_PCR, (int64_t)p_sys->i_pcr );
  422.                 }
  423.                 es_out_Send( p_demux->out, tk->p_es, p_frame );
  424.             }
  425.             else
  426.             {
  427.                 /* First fragment */
  428.                 tk->i_frame = i_len;
  429.                 if( ( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) == NULL )
  430.                 {
  431.                     return -1;
  432.                 }
  433.                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
  434.                 tk->p_frame->i_dts = i_pts;
  435.                 tk->p_frame->i_pts = i_pts;
  437.                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
  438.                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1;      /* chunk counts */
  439.                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
  440.                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
  442.                 break;
  443.             }
  444. #endif
  445.         }
  446.     }
  447.     else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
  448.     {
  449.         /* Set PCR */
  450.         if( p_sys->i_pcr < i_pts )
  451.         {
  452.             p_sys->i_pcr = i_pts;
  453.             es_out_Control( p_demux->out, ES_OUT_SET_PCR, (int64_t)p_sys->i_pcr );
  454.         }
  456.         if( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', '4', 'a' ) )
  457.         {
  458.             int     i_sub = (p_sys->buffer[1] >> 4)&0x0f;
  459.             uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
  461.             int i;
  462.             for( i = 0; i < i_sub; i++ )
  463.             {
  464.                 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
  465.                 block_t *p_block = block_New( p_demux, i_sub_size );
  466.                 if( p_block )
  467.                 {
  468.                     memcpy( p_block->p_buffer, p_sub, i_sub_size );
  469.                     p_sub += i_sub_size;
  471.                     p_block->i_dts =
  472.                     p_block->i_pts = ( i == 0 ? i_pts : 0 );
  474.                     es_out_Send( p_demux->out, tk->p_es, p_block );
  475.                 }
  476.             }
  477.         }
  478.         else
  479.         {
  480.             block_t *p_block = block_New( p_demux, i_size );
  482.             if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
  483.             {
  484.                 uint8_t *src = p_sys->buffer;
  485.                 uint8_t *dst = p_block->p_buffer;
  487.                 /* byte swap data */
  488.                 while( dst < &p_block->p_buffer[i_size- 1])
  489.                 {
  490.                     *dst++ = src[1];
  491.                     *dst++ = src[0];
  493.                     src += 2;
  494.                 }
  495.             }
  496.             else
  497.             {
  498.                 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
  499.             }
  500.             p_block->i_dts =
  501.             p_block->i_pts = i_pts;
  503.             es_out_Send( p_demux->out, tk->p_es, p_block );
  504.         }
  505.     }
  508.     return 1;
  509. }
  511. /*****************************************************************************
  512.  * Control:
  513.  *****************************************************************************/
  514. static int Control( demux_t *p_demux, int i_query, va_list args )
  515. {
  516. #if 0
  517.     demux_sys_t *p_sys = p_demux->p_sys;
  518.     double f, *pf;
  519.     int64_t i64, *pi64;
  521.     switch( i_query )
  522.     {
  523.         case DEMUX_GET_POSITION:
  524.             pf = (double*) va_arg( args, double* );
  525.             i64 = stream_Size( p_demux->s );
  526.             if( i64 > 0 )
  527.             {
  528.                 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
  529.             }
  530.             else
  531.             {
  532.                 *pf = 0.0;
  533.             }
  534.             return VLC_SUCCESS;
  535.         case DEMUX_SET_POSITION:
  536.             f = (double) va_arg( args, double );
  537.             i64 = stream_Size( p_demux->s );
  539.             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
  541.             return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
  543.         case DEMUX_GET_TIME:
  544.             pi64 = (int64_t*)va_arg( args, int64_t * );
  545.             if( p_sys->i_mux_rate > 0 )
  546.             {
  547.                 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
  548.                 return VLC_SUCCESS;
  549.             }
  550.             *pi64 = 0;
  551.             return VLC_EGENERIC;
  553.         case DEMUX_GET_LENGTH:
  554.             pi64 = (int64_t*)va_arg( args, int64_t * );
  555.             if( p_sys->i_mux_rate > 0 )
  556.             {
  557.                 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
  558.                 return VLC_SUCCESS;
  559.             }
  560.             *pi64 = 0;
  561.             return VLC_EGENERIC;
  563.         case DEMUX_SET_TIME:
  564.         case DEMUX_GET_FPS:
  565.         default:
  566.             return VLC_EGENERIC;
  567.     }
  568. #endif
  569.     return VLC_EGENERIC;
  570. }
  572. /*****************************************************************************
  573.  * HeaderRead:
  574.  *****************************************************************************/
  575. static int HeaderRead( demux_t *p_demux )
  576. {
  577.     demux_sys_t *p_sys = p_demux->p_sys;
  578.     uint8_t header[100];    /* FIXME */
  580.     uint32_t    i_id;
  581.     uint32_t    i_size;
  582.     int64_t     i_skip;
  583.     int         i_version;
  585.     for( ;; )
  586.     {
  587.         /* Read the header */
  588.         if( stream_Read( p_demux->s, header, 10 ) < 10 )
  589.         {
  590.             return VLC_EGENERIC;
  591.         }
  592.         i_id        = VLC_FOURCC( header[0], header[1], header[2], header[3] );
  593.         i_size      = GetDWBE( &header[4] );
  594.         i_version   = GetWBE( &header[8] );
  596.         msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
  597.                  (char*)&i_id, i_size, i_version );
  599.         if( i_size < 10 )
  600.         {
  601.             return VLC_EGENERIC;
  602.         }
  603.         i_skip = i_size - 10;
  605.         if( i_id == VLC_FOURCC('.','R','M','F') )
  606.         {
  607.             if( stream_Read( p_demux->s, header, 8 ) < 8 )
  608.             {
  609.                 return VLC_EGENERIC;
  610.             }
  611.             msg_Dbg( p_demux, "    - file version=0x%x num headers=%d",
  612.                      GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
  614.             i_skip -= 8;
  615.         }
  616.         else if( i_id == VLC_FOURCC('P','R','O','P') )
  617.         {
  618.             int i_flags;
  620.             if( stream_Read( p_demux->s, header, 40 ) < 40 )
  621.             {
  622.                 return VLC_EGENERIC;
  623.             }
  624.             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
  625.                      GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
  626.             msg_Dbg( p_demux, "    - max packet size=%d avg bitrate=%d",
  627.                      GetDWBE( &header[8] ), GetDWBE( &header[12] ) );
  628.             msg_Dbg( p_demux, "    - packets count=%d", GetDWBE( &header[16] ) );
  629.             msg_Dbg( p_demux, "    - duration=%d ms", GetDWBE( &header[20] ) );
  630.             msg_Dbg( p_demux, "    - preroll=%d ms", GetDWBE( &header[24] ) );
  631.             msg_Dbg( p_demux, "    - index offset=%d", GetDWBE( &header[28] ) );
  632.             msg_Dbg( p_demux, "    - data offset=%d", GetDWBE( &header[32] ) );
  633.             msg_Dbg( p_demux, "    - num streams=%d", GetWBE( &header[36] ) );
  634.             i_flags = GetWBE( &header[38]);
  635.             msg_Dbg( p_demux, "    - flags=0x%x %s%s%s",
  636.                      i_flags,
  637.                      i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
  638.                      i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
  639.                      i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
  640.             i_skip -= 40;
  641.         }
  642.         else if( i_id == VLC_FOURCC('C','O','N','T') )
  643.         {
  644.             int i_len;
  645.             char *psz;
  647.             stream_Read( p_demux->s, header, 2 );
  648.             if( ( i_len = GetWBE( header ) ) > 0 )
  649.             {
  650.                 psz = malloc( i_len + 1 );
  651.                 stream_Read( p_demux->s, psz, i_len );
  652.                 psz[i_len] = '';
  654.                 msg_Dbg( p_demux, "    - title=`%s'", psz );
  655.                 free( psz );
  656.                 i_skip -= i_len;
  657.             }
  658.             i_skip -= 2;
  660.             stream_Read( p_demux->s, header, 2 );
  661.             if( ( i_len = GetWBE( header ) ) > 0 )
  662.             {
  663.                 psz = malloc( i_len + 1 );
  664.                 stream_Read( p_demux->s, psz, i_len );
  665.                 psz[i_len] = '';
  667.                 msg_Dbg( p_demux, "    - author=`%s'", psz );
  668.                 free( psz );
  669.                 i_skip -= i_len;
  670.             }
  671.             i_skip -= 2;
  673.             stream_Read( p_demux->s, header, 2 );
  674.             if( ( i_len = GetWBE( header ) ) > 0 )
  675.             {
  676.                 psz = malloc( i_len + 1 );
  677.                 stream_Read( p_demux->s, psz, i_len );
  678.                 psz[i_len] = '';
  680.                 msg_Dbg( p_demux, "    - copyright=`%s'", psz );
  681.                 free( psz );
  682.                 i_skip -= i_len;
  683.             }
  684.             i_skip -= 2;
  686.             stream_Read( p_demux->s, header, 2 );
  687.             if( ( i_len = GetWBE( header ) ) > 0 )
  688.             {
  689.                 psz = malloc( i_len + 1 );
  690.                 stream_Read( p_demux->s, psz, i_len );
  691.                 psz[i_len] = '';
  693.                 msg_Dbg( p_demux, "    - comment=`%s'", psz );
  694.                 free( psz );
  695.                 i_skip -= i_len;
  696.             }
  697.             i_skip -= 2;
  698.         }
  699.         else if( i_id == VLC_FOURCC('M','D','P','R') )
  700.         {
  701.             int  i_num;
  702.             int  i_len;
  703.             char *psz;
  705.             if( stream_Read( p_demux->s, header, 30 ) < 30 )
  706.             {
  707.                 return VLC_EGENERIC;
  708.             }
  709.             i_num = GetWBE( header );
  710.             msg_Dbg( p_demux, "    - id=0x%x", i_num );
  711.             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d", GetDWBE( &header[2] ), GetDWBE( &header[6] ) );
  712.             msg_Dbg( p_demux, "    - max packet size=%d avg packet size=%d", GetDWBE( &header[10] ), GetDWBE( &header[14] ));
  713.             msg_Dbg( p_demux, "    - start time=%d", GetDWBE( &header[18] ) );
  714.             msg_Dbg( p_demux, "    - preroll=%d", GetDWBE( &header[22] ) );
  715.             msg_Dbg( p_demux, "    - duration=%d", GetDWBE( &header[26] ));
  716.             i_skip -= 30;
  719.             stream_Read( p_demux->s, header, 1 );
  720.             if( ( i_len = header[0] ) > 0 )
  721.             {
  722.                 psz = malloc( i_len + 1 );
  723.                 stream_Read( p_demux->s, psz, i_len );
  724.                 psz[i_len] = '';
  726.                 msg_Dbg( p_demux, "    - name=`%s'", psz );
  727.                 free( psz );
  728.                 i_skip -= i_len;
  729.             }
  730.             i_skip--;
  732.             stream_Read( p_demux->s, header, 1 );
  733.             if( ( i_len = header[0] ) > 0 )
  734.             {
  735.                 psz = malloc( i_len + 1 );
  736.                 stream_Read( p_demux->s, psz, i_len );
  737.                 psz[i_len] = '';
  739.                 msg_Dbg( p_demux, "    - mime=`%s'", psz );
  740.                 free( psz );
  741.                 i_skip -= i_len;
  742.             }
  743.             i_skip--;
  745.             stream_Read( p_demux->s, header, 4 );
  746.             if( ( i_len = GetDWBE( header ) ) > 0 )
  747.             {
  748.                 es_format_t  fmt;
  749.                 real_track_t *tk;
  750.                 uint8_t *p_peek;
  752.                 msg_Dbg( p_demux, "    - specific data len=%d", i_len );
  753.                 if( stream_Peek( p_demux->s, &p_peek, 34 ) >= 34 )
  754.                 {
  755.                     if( !strncmp( &p_peek[4], "VIDO", 4 ) )
  756.                     {
  757.                         es_format_Init( &fmt, VIDEO_ES,
  758.                                         VLC_FOURCC( p_peek[8], p_peek[9], p_peek[10], p_peek[11] ) );
  759.                         fmt.video.i_width = GetWBE( &p_peek[12] );
  760.                         fmt.video.i_height= GetWBE( &p_peek[14] );
  762.                         fmt.i_extra = 8;
  763.                         fmt.p_extra = malloc( 8 );
  764.                         ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
  765.                         ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
  767.                         msg_Dbg( p_demux, "    - video 0x%08x 0x%08x",
  768.                                  ((uint32_t*)fmt.p_extra)[0],
  769.                                  ((uint32_t*)fmt.p_extra)[1] );
  771.                         if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
  772.                             GetDWBE( &p_peek[30] ) == 0x10003001 )
  773.                         {
  774.                             fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
  775.                         }
  777.                         msg_Dbg( p_demux, "    - video %4.4s %dx%d",
  778.                                  (char*)&fmt.i_codec,
  779.                                  fmt.video.i_width, fmt.video.i_height );
  781.                         tk = malloc( sizeof( real_track_t ) );
  782.                         tk->i_id = i_num;
  783.                         tk->fmt = fmt;
  784.                         tk->i_frame = 0;
  785.                         tk->p_frame = NULL;
  786.                         tk->p_es = es_out_Add( p_demux->out, &fmt );
  788.                         TAB_APPEND( p_sys->i_track, p_sys->track, tk );
  789.                     }
  790.                     else if( !strncmp( p_peek, ".raxfd", 4 ) )
  791.                     {
  792.                         int     i_version = GetWBE( &p_peek[4] );
  793.                         uint8_t *p_extra = NULL;
  794.                         msg_Dbg( p_demux, "    - audio version=%d", i_version );
  796.                         es_format_Init( &fmt, AUDIO_ES, 0 );
  797.                         if( i_version == 4 && stream_Peek( p_demux->s, &p_peek, 56 ) >= 56 )
  798.                         {
  799.                             fmt.audio.i_channels = GetWBE( &p_peek[54] );
  800.                             fmt.audio.i_rate = GetWBE( &p_peek[48] );
  802.                             if( stream_Peek( p_demux->s, &p_peek, 57 ) >= 57 )
  803.                             {
  804.                                 int i_extra = p_peek[56] + 1 + 4;
  805.                                 if( stream_Peek( p_demux->s, &p_peek, 57 + i_extra ) >= 57 + i_extra )
  806.                                 {
  807.                                     memcpy( &fmt.i_codec, &p_peek[57 + p_peek[56] + 1], 4 );
  808.                                 }
  809.                                 p_extra = &p_peek[57 + p_peek[56] + 1+ 4 + 3];
  810.                             }
  811.                         }
  812.                         else if( i_version == 5 && stream_Peek( p_demux->s, &p_peek, 70 ) >= 70 )
  813.                         {
  814.                             memcpy( &fmt.i_codec, &p_peek[66], 4 );
  815.                             fmt.audio.i_channels = GetWBE( &p_peek[60] );
  816.                             fmt.audio.i_rate = GetWBE( &p_peek[54] );
  818.                             p_extra = &p_peek[66+4+3+1];
  819.                         }
  820.                         msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
  821.                                 (char*)&fmt.i_codec,
  822.                                 fmt.audio.i_channels, fmt.audio.i_rate );
  824.                         if( fmt.i_codec == VLC_FOURCC( 'd', 'n', 'e', 't' ) )
  825.                         {
  826.                             fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
  827.                         }
  828.                         else if( fmt.i_codec == VLC_FOURCC( 'r', 'a', 'a', 'c' ) ||
  829.                                  fmt.i_codec == VLC_FOURCC( 'r', 'a', 'c', 'p' ) )
  830.                         {
  831.                             int i_peek = p_extra - p_peek;
  832.                             if( stream_Peek( p_demux->s, &p_peek, i_peek + 4 ) >= i_peek + 4 )
  833.                             {
  834.                                 int i_extra = GetDWBE( &p_peek[i_peek] );
  836.                                 if( i_extra > 1 && i_peek + 4 + i_extra <= i_len &&
  837.                                     stream_Peek( p_demux->s, &p_peek, i_peek + 4 + i_extra ) >= i_peek + 4 + i_extra )
  838.                                 {
  839.                                     fmt.i_extra = i_extra - 1;
  840.                                     fmt.p_extra = malloc ( i_extra - 1 );
  841.                                     memcpy( fmt.p_extra, &p_peek[i_peek+4+1], i_extra - 1 );
  843.                                     msg_Dbg( p_demux, "        - extra data=%d", i_extra );
  844.                                     {
  845.                                         int i;
  846.                                         for( i = 0; i < fmt.i_extra; i++ )
  847.                                         {
  848.                                             msg_Dbg( p_demux, "          data[%d] = 0x%x", i,((uint8_t*)fmt.p_extra)[i] );
  849.                                         }
  850.                                     }
  851.                                 }
  852.                             }
  853.                             fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
  854.                         }
  856.                         if( fmt.i_codec != 0 )
  857.                         {
  858.                             tk = malloc( sizeof( real_track_t ) );
  859.                             tk->i_id = i_num;
  860.                             tk->fmt = fmt;
  861.                             tk->i_frame = 0;
  862.                             tk->p_frame = NULL;
  863.                             tk->p_es = es_out_Add( p_demux->out, &fmt );
  865.                             TAB_APPEND( p_sys->i_track, p_sys->track, tk );
  866.                         }
  867.                     }
  868.                 }
  869.                 stream_Read( p_demux->s, NULL, i_len );
  871.                 i_skip -= i_len;
  872.             }
  873.             i_skip -= 4;
  874.         }
  875.         else if( i_id == VLC_FOURCC('D','A','T','A') )
  876.         {
  877.             stream_Read( p_demux->s, header, 8 );
  879.             p_sys->i_data_offset    = stream_Tell( p_demux->s ) - 10;
  880.             p_sys->i_data_size      = i_size;
  881.             p_sys->i_data_packets_count = GetDWBE( header );
  882.             p_sys->i_data_packets   = 0;
  883.             p_sys->i_data_offset_next = GetDWBE( &header[4] );
  885.             msg_Dbg( p_demux, "    - packets count=%d next=%u",
  886.                      p_sys->i_data_packets_count,
  887.                      (uint32_t)p_sys->i_data_offset_next );
  889.             /* we have finished the header */
  890.             break;
  891.         }
  892.         else
  893.         {
  894.             /* unknow header */
  895.             msg_Dbg( p_demux, "unknown chunk" );
  896.         }
  898.         if( i_skip < 0 )
  899.         {
  900.             return VLC_EGENERIC;
  901.         }
  902.         stream_Read( p_demux->s, NULL, i_skip );
  903.     }
  905.     /* TODO read index if possible */
  907.     return VLC_SUCCESS;
  908. }