asf.c 34.5 KB
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/*****************************************************************************
 * asf.c
 *****************************************************************************
 * Copyright (C) 2003 VideoLAN
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 * $Id$
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 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>

#include "codecs.h"

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
static int  Open   ( vlc_object_t * );
static void Close  ( vlc_object_t * );

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#define SOUT_CFG_PREFIX "sout-asf-"

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#define TITLE_TEXT N_("Title")
#define TITLE_LONGTEXT N_("Allows you to define the title that will be put " \
                          "in ASF comments.")
#define AUTHOR_TEXT N_("Author")
#define AUTHOR_LONGTEXT N_("Allows you to define the author that will be put " \
                          "in ASF comments.")
#define COPYRIGHT_TEXT N_("Copyright")
#define COPYRIGHT_LONGTEXT N_("Allows you to define the copyright string that "\
                          "will be put in ASF comments.")
#define COMMENT_TEXT N_("Comment")
#define COMMENT_LONGTEXT N_("Allows you to define the comment that will be " \
                            "put in ASF comments.")
#define RATING_TEXT N_("Rating")
#define RATING_LONGTEXT N_("Allows you to define the \"rating\" that will " \
                           "be put in ASF comments.")

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vlc_module_begin();
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    set_description( _("ASF muxer") );
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    set_capability( "sout mux", 5 );
    add_shortcut( "asf" );
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    add_shortcut( "asfh" );
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    set_callbacks( Open, Close );
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    add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
                                 VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "author",   "", NULL, AUTHOR_TEXT,
                                 AUTHOR_LONGTEXT, VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
                                 COPYRIGHT_LONGTEXT, VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "comment",  "", NULL, COMMENT_TEXT,
                                 COMMENT_LONGTEXT, VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "rating",  "", NULL, RATING_TEXT,
                                 RATING_LONGTEXT, VLC_TRUE );
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vlc_module_end();

/*****************************************************************************
 * Locales prototypes
 *****************************************************************************/
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static const char *ppsz_sout_options[] = {
    "title", "author", "copyright", "comment", "rating", NULL
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};
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static int Control  ( sout_mux_t *, int, va_list );
static int AddStream( sout_mux_t *, sout_input_t * );
static int DelStream( sout_mux_t *, sout_input_t * );
static int Mux      ( sout_mux_t * );
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typedef struct
{
    uint32_t v1; /* le */
    uint16_t v2; /* le */
    uint16_t v3; /* le */
    uint8_t  v4[8];
} guid_t;

typedef struct
{
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    int          i_id;
    int          i_cat;
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    /* codec information */
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    uint16_t     i_tag;     /* for audio */
    vlc_fourcc_t i_fourcc;  /* for video */
    char         *psz_name; /* codec name */

    int          i_sequence;

    int          i_extra;
    uint8_t     *p_extra;
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} asf_track_t;

struct sout_mux_sys_t
{
    guid_t          fid;    /* file id */
    int             i_packet_size;
    int64_t         i_packet_count;
    mtime_t         i_dts_first;
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    mtime_t         i_dts_last;
    int64_t         i_bitrate;
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    int             i_track;
    asf_track_t     track[128];

    vlc_bool_t      b_write_header;

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    block_t   *pk;
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    int             i_pk_used;
    int             i_pk_frame;
    mtime_t         i_pk_dts;
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    vlc_bool_t      b_asf_http;
    int             i_seq;
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    /* meta data */
    char            *psz_title;
    char            *psz_author;
    char            *psz_copyright;
    char            *psz_comment;
    char            *psz_rating;
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};

static int MuxGetStream( sout_mux_t *, int *pi_stream, mtime_t *pi_dts );

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static block_t *asf_header_create( sout_mux_t *, vlc_bool_t b_broadcast );
static block_t *asf_packet_create( sout_mux_t *,
                                         asf_track_t *, block_t * );
static block_t *asf_stream_end_create( sout_mux_t *);
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typedef struct
{
    int      i_buffer_size;
    int      i_buffer;
    uint8_t  *p_buffer;
} bo_t;

static void bo_init     ( bo_t *, uint8_t *, int  );
static void bo_add_u8   ( bo_t *, uint8_t  );
static void bo_addle_u16( bo_t *, uint16_t );
static void bo_addle_u32( bo_t *, uint32_t );
static void bo_addle_u64( bo_t *, uint64_t );
static void bo_add_mem  ( bo_t *, uint8_t *, int );

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static void bo_addle_str16( bo_t *, char * );
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/*****************************************************************************
 * Open:
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    sout_mux_t     *p_mux = (sout_mux_t*)p_this;
    sout_mux_sys_t *p_sys;
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    vlc_value_t    val;
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    int i;

    msg_Dbg( p_mux, "Asf muxer opened" );
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    sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
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    p_mux->pf_control   = Control;
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    p_mux->pf_addstream = AddStream;
    p_mux->pf_delstream = DelStream;
    p_mux->pf_mux       = Mux;

    p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
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    p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
    if( p_sys->b_asf_http )
    {
        msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
    }
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    p_sys->pk = NULL;
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    p_sys->i_pk_used    = 0;
    p_sys->i_pk_frame   = 0;
    p_sys->i_dts_first  = -1;
    p_sys->i_dts_last   = 0;
    p_sys->i_bitrate    = 0;
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    p_sys->i_seq        = 0;
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    p_sys->b_write_header = VLC_TRUE;
    p_sys->i_track = 1;
    p_sys->i_packet_size = 4096;
    p_sys->i_packet_count= 0;
    /* generate a random fid */
    srand( mdate() & 0xffffffff );
    p_sys->fid.v1 = 0xbabac001;
    p_sys->fid.v2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
    p_sys->fid.v3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
    for( i = 0; i < 8; i++ )
    {
        p_sys->fid.v4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
    }
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    /* meta data */
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    var_Get( p_mux, SOUT_CFG_PREFIX "title", &val );
    p_sys->psz_title = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "author", &val );
    p_sys->psz_author = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "copyright", &val );
    p_sys->psz_copyright = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "comment", &val );
    p_sys->psz_comment = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "rating", &val );
    p_sys->psz_rating = val.psz_string;

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    msg_Dbg( p_mux,
             "meta data: title='%s' author='%s' copyright='%s' comment='%s' rating='%s'",
             p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
             p_sys->psz_comment, p_sys->psz_rating );
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    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close:
 *****************************************************************************/
static void Close( vlc_object_t * p_this )
{
    sout_mux_t     *p_mux = (sout_mux_t*)p_this;
    sout_mux_sys_t *p_sys = p_mux->p_sys;
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    block_t  *out;
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    int i;

    msg_Dbg( p_mux, "Asf muxer closed" );

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    if( ( out = asf_stream_end_create( p_mux ) ) )
    {
        sout_AccessOutWrite( p_mux->p_access, out );
    }

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    /* rewrite header */
    if( !sout_AccessOutSeek( p_mux->p_access, 0 ) )
    {
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        out = asf_header_create( p_mux, VLC_FALSE );
        sout_AccessOutWrite( p_mux->p_access, out );
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    }

    for( i = 1; i < p_sys->i_track; i++ )
    {
        free( p_sys->track[i].p_extra );
    }
    free( p_sys );
}

/*****************************************************************************
 * Capability:
 *****************************************************************************/
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static int Control( sout_mux_t *p_mux, int i_query, va_list args )
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{
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    sout_mux_sys_t *p_sys = p_mux->p_sys;
    vlc_bool_t *pb_bool;
    char **ppsz;

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   switch( i_query )
   {
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       case MUX_CAN_ADD_STREAM_WHILE_MUXING:
           pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
           *pb_bool = VLC_TRUE;
           return VLC_SUCCESS;

       case MUX_GET_ADD_STREAM_WAIT:
           pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
           *pb_bool = VLC_FALSE;
           return VLC_SUCCESS;

       case MUX_GET_MIME:
           ppsz = (char**)va_arg( args, char ** );
           if( p_sys->b_asf_http )
               *ppsz = strdup( "video/x-ms-asf-stream" );
           else
               *ppsz = strdup( "video/x-ms-asf" );
           return VLC_SUCCESS;

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        default:
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            return VLC_EGENERIC;
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   }
}

/*****************************************************************************
 * AddStream:
 *****************************************************************************/
static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
    sout_mux_sys_t   *p_sys = p_mux->p_sys;
    asf_track_t      *tk;
    bo_t             bo;

    msg_Dbg( p_mux, "adding input" );
    if( p_sys->i_track > 127 )
    {
        msg_Dbg( p_mux, "cannot add this track (too much track)" );
        return VLC_EGENERIC;
    }

    tk = p_input->p_sys = &p_sys->track[p_sys->i_track];
    tk->i_id  = p_sys->i_track;
    tk->i_cat = p_input->p_fmt->i_cat;
    tk->i_sequence = 0;

    switch( tk->i_cat )
    {
        case AUDIO_ES:
        {
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            int      i_blockalign = p_input->p_fmt->audio.i_blockalign;
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            int      i_bitspersample = 0;
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            int      i_extra = 0;
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            switch( p_input->p_fmt->i_codec )
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            {
                case VLC_FOURCC( 'a', '5', '2', ' ' ):
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                    tk->i_tag = WAVE_FORMAT_A52;
                    tk->psz_name = "A/52";
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                    break;
                case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
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#if 1
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                    tk->psz_name = "MPEG Audio Layer 3";
                    tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
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                    i_blockalign = 1;
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                    i_extra = 12;
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                    break;
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#else
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                    tk->psz_name = "MPEG Audio Layer 1/2";
                    tk->i_tag = WAVE_FORMAT_MPEG;
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                    i_blockalign = 1;
                    i_extra = 22;
                    break;
#endif
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                case VLC_FOURCC( 'w', 'm', 'a', '1' ):
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                    tk->psz_name = "Windows Media Audio 1";
                    tk->i_tag = WAVE_FORMAT_WMA1;
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                    break;
                case VLC_FOURCC( 'w', 'm', 'a', '2' ):
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                    tk->psz_name = "Windows Media Audio 2";
                    tk->i_tag = WAVE_FORMAT_WMA2;
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                    break;
                case VLC_FOURCC( 'w', 'm', 'a', '3' ):
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                    tk->psz_name = "Windows Media Audio 3";
                    tk->i_tag = WAVE_FORMAT_WMA3;
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                    break;
                    /* raw codec */
                case VLC_FOURCC( 'u', '8', ' ', ' ' ):
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                    tk->psz_name = "Raw audio 8bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
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                    i_blockalign= p_input->p_fmt->audio.i_channels;
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                    i_bitspersample = 8;
                    break;
                case VLC_FOURCC( 's', '1', '6', 'l' ):
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                    tk->psz_name = "Raw audio 16bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
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                    i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
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                    i_bitspersample = 16;
                    break;
                case VLC_FOURCC( 's', '2', '4', 'l' ):
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                    tk->psz_name = "Raw audio 24bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
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                    i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
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                    i_bitspersample = 24;
                    break;
                case VLC_FOURCC( 's', '3', '2', 'l' ):
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                    tk->psz_name = "Raw audio 32bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
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                    i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
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                    i_bitspersample = 32;
                    break;
                default:
                    return VLC_EGENERIC;
            }

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            tk->i_extra = sizeof( WAVEFORMATEX ) +
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                          p_input->p_fmt->i_extra + i_extra;
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            tk->p_extra = malloc( tk->i_extra );
            bo_init( &bo, tk->p_extra, tk->i_extra );
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            bo_addle_u16( &bo, tk->i_tag );
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            bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
            bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
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            bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
            bo_addle_u16( &bo, i_blockalign );
            bo_addle_u16( &bo, i_bitspersample );
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            if( p_input->p_fmt->i_extra > 0 )
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            {
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                bo_addle_u16( &bo, p_input->p_fmt->i_extra );
                bo_add_mem  ( &bo, p_input->p_fmt->p_extra,
                              p_input->p_fmt->i_extra );
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            }
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            else
            {
                bo_addle_u16( &bo, i_extra );
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                if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
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                {
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                    msg_Dbg( p_mux, "adding mp3 header" );
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                    bo_addle_u16( &bo, 1 );     /* wId */
                    bo_addle_u32( &bo, 2 );     /* fdwFlags */
                    bo_addle_u16( &bo, 1152 );  /* nBlockSize */
                    bo_addle_u16( &bo, 1 );     /* nFramesPerBlock */
                    bo_addle_u16( &bo, 1393 );  /* nCodecDelay */
                }
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                else if( tk->i_tag == WAVE_FORMAT_MPEG )
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                {
                    msg_Dbg( p_mux, "adding mp2 header" );
                    bo_addle_u16( &bo, 2 );     /* fwHeadLayer */
                    bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
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                    bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
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                    bo_addle_u16( &bo, 0 );     /* fwHeadModeExt */
                    bo_addle_u16( &bo, 1 );     /* wHeadEmphasis */
                    bo_addle_u16( &bo, 16 );    /* fwHeadFlags */
                    bo_addle_u32( &bo, 0 );     /* dwPTSLow */
                    bo_addle_u32( &bo, 0 );     /* dwPTSHigh */
                }
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            }

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            if( p_input->p_fmt->i_bitrate > 24000 )
            {
                p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
            }
            else
            {
                p_sys->i_bitrate += 512000;
            }
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            break;
        }
        case VIDEO_ES:
        {
            tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) +
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                          p_input->p_fmt->i_extra;
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            tk->p_extra = malloc( tk->i_extra );
            bo_init( &bo, tk->p_extra, tk->i_extra );
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            bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
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            bo_add_u8   ( &bo, 0x02 );  /* flags */
            bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) +
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                               p_input->p_fmt->i_extra );
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            bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) +
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                               p_input->p_fmt->i_extra );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
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            bo_addle_u16( &bo, 1 );
            bo_addle_u16( &bo, 24 );
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            if( p_input->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') )
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            {
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                tk->psz_name = "MPEG-4 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
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            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','3') )
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            {
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                tk->psz_name = "MSMPEG-4 V3 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
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            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','2') )
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            {
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                tk->psz_name = "MSMPEG-4 V2 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
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            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','1') )
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            {
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                tk->psz_name = "MSMPEG-4 V1 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','1') )
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            {
                tk->psz_name = "Windows Media Video 1";
                tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','2') )
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            {
                tk->psz_name = "Windows Media Video 2";
                tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
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            }
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            else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','3') )
            {
                tk->psz_name = "Windows Media Video 3";
                tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
            }
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            else
            {
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                tk->psz_name = _("Unknown Video");
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                tk->i_fourcc = p_input->p_fmt->i_codec;
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            }
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            bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
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            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
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            if( p_input->p_fmt->i_extra > 0 )
508
            {
509
510
                bo_add_mem  ( &bo, p_input->p_fmt->p_extra,
                              p_input->p_fmt->i_extra );
511
512
            }

513
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516
517
518
519
520
            if( p_input->p_fmt->i_bitrate > 50000 )
            {
                p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
            }
            else
            {
                p_sys->i_bitrate += 1000000;
            }
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541
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            break;
        }
        default:
            msg_Err(p_mux, "unhandled track type" );
            return VLC_EGENERIC;
    }

    p_sys->i_track++;
    return VLC_SUCCESS;
}

/*****************************************************************************
 * DelStream:
 *****************************************************************************/
static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
    msg_Dbg( p_mux, "removing input" );
    return VLC_SUCCESS;
}

/*****************************************************************************
 * Mux:
 *****************************************************************************/
static int Mux      ( sout_mux_t *p_mux )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

    if( p_sys->b_write_header )
    {
550
        block_t *out = asf_header_create( p_mux, VLC_TRUE );
551

552
        out->i_flags |= BLOCK_FLAG_HEADER;
553
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560
561
562
563
        sout_AccessOutWrite( p_mux->p_access, out );

        p_sys->b_write_header = VLC_FALSE;
    }

    for( ;; )
    {
        sout_input_t  *p_input;
        asf_track_t   *tk;
        int           i_stream;
        mtime_t       i_dts;
564
565
        block_t *data;
        block_t *pk;
566
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568
569
570
571
572
573
574
575
576

        if( MuxGetStream( p_mux, &i_stream, &i_dts ) )
        {
            /* not enough data */
            return VLC_SUCCESS;
        }

        if( p_sys->i_dts_first < 0 )
        {
            p_sys->i_dts_first = i_dts;
        }
577
578
579
580
        if( p_sys->i_dts_last < i_dts )
        {
            p_sys->i_dts_last = i_dts;
        }
581
582
583
584

        p_input = p_mux->pp_inputs[i_stream];
        tk      = (asf_track_t*)p_input->p_sys;

585
        data = block_FifoGet( p_input->p_fifo );
586
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600
601
602
603
604
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606
607

        if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
        {
            sout_AccessOutWrite( p_mux->p_access, pk );
        }
    }

    return VLC_SUCCESS;
}


static int MuxGetStream( sout_mux_t *p_mux,
                         int        *pi_stream,
                         mtime_t    *pi_dts )
{
    mtime_t i_dts;
    int     i_stream;
    int     i;

    for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
    {
        sout_input_t  *p_input = p_mux->pp_inputs[i];
608
        block_t *p_data;
609
610
611
612
613
614
615
616
617
618
619
620
621

        if( p_input->p_fifo->i_depth <= 0 )
        {
            if( p_input->p_fmt->i_cat == AUDIO_ES ||
                p_input->p_fmt->i_cat == VIDEO_ES )
            {
                /* We need that audio+video fifo contain at least 1 packet */
                return VLC_EGENERIC;
            }
            /* SPU */
            continue;
        }

622
        p_data = block_FifoShow( p_input->p_fifo );
623
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        if( i_stream == -1 ||
            p_data->i_dts < i_dts )
        {
            i_stream = i;
            i_dts    = p_data->i_dts;
        }
    }

    *pi_stream = i_stream;
    *pi_dts = i_dts;

    return VLC_SUCCESS;
}

/****************************************************************************
 * Asf header construction
 ****************************************************************************/

/****************************************************************************
 * Buffer out
 ****************************************************************************/
static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
{
    p_bo->i_buffer_size = i_size;
    p_bo->i_buffer = 0;
    p_bo->p_buffer = p_buffer;
}
static void bo_add_u8( bo_t *p_bo, uint8_t i )
{
    if( p_bo->i_buffer < p_bo->i_buffer_size )
    {
        p_bo->p_buffer[p_bo->i_buffer] = i;
    }
    p_bo->i_buffer++;
}
static void bo_addle_u16( bo_t *p_bo, uint16_t i )
{
    bo_add_u8( p_bo, i &0xff );
    bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
}
static void bo_addle_u32( bo_t *p_bo, uint32_t i )
{
    bo_addle_u16( p_bo, i &0xffff );
    bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
}
static void bo_addle_u64( bo_t *p_bo, uint64_t i )
{
    bo_addle_u32( p_bo, i &0xffffffff );
    bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
}

static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
{
    int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );

    if( i_copy > 0 )
    {
        memcpy( &p_bo->p_buffer[p_bo->i_buffer],
                p_mem,
                i_copy );
    }
    p_bo->i_buffer += i_size;
}

687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
static void bo_addle_str16( bo_t *bo, char *str )
{
    bo_addle_u16( bo, strlen( str ) + 1 );
    for( ;; )
    {
        uint16_t c;

        c = (uint8_t)*str++;
        bo_addle_u16( bo, c );
        if( c == '\0' )
        {
            break;
        }
    }
}

703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
static void bo_addle_str16_nosize( bo_t *bo, char *str )
{
    for( ;; )
    {
        uint16_t c;

        c = (uint8_t)*str++;
        bo_addle_u16( bo, c );
        if( c == '\0' )
        {
            break;
        }
    }
}

718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
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740
741
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743
744
745
746
747
748
749
750
751
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753
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758
759
760
761
762
763
764
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766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
/****************************************************************************
 * guid
 ****************************************************************************/
static void bo_add_guid( bo_t *p_bo, const guid_t *id )
{
    int i;
    bo_addle_u32( p_bo, id->v1 );
    bo_addle_u16( p_bo, id->v2 );
    bo_addle_u16( p_bo, id->v3 );
    for( i = 0; i < 8; i++ )
    {
        bo_add_u8( p_bo, id->v4[i] );
    }
}

static const guid_t asf_object_header_guid =
{
    0x75B22630,
    0x668E,
    0x11CF,
    { 0xA6,0xD9, 0x00,0xAA,0x00,0x62,0xCE,0x6C }
};
static const guid_t asf_object_data_guid =
{
    0x75B22636,
    0x668E,
    0x11CF,
    { 0xA6,0xD9, 0x00,0xAA,0x00,0x62,0xCE,0x6C }
};

static const guid_t asf_object_file_properties_guid =
{
    0x8cabdca1,
    0xa947,
    0x11cf,
    { 0x8e,0xe4, 0x00,0xC0,0x0C,0x20,0x53,0x65 }

};
static const guid_t asf_object_stream_properties_guid =
{
    0xB7DC0791,
    0xA9B7,
    0x11CF,
    { 0x8E,0xE6, 0x00,0xC0,0x0C,0x20,0x53,0x65 }

};
static const guid_t asf_object_header_extention_guid =
{
   0x5FBF03B5,
   0xA92E,
   0x11CF,
   { 0x8E,0xE3, 0x00,0xC0,0x0C,0x20,0x53,0x65 }
};

static const guid_t asf_object_stream_type_audio =
{
    0xF8699E40,
    0x5B4D,
    0x11CF,
    { 0xA8,0xFD, 0x00,0x80,0x5F,0x5C,0x44,0x2B }
};

static const guid_t asf_object_stream_type_video =
{
    0xbc19efc0,
    0x5B4D,
    0x11CF,
    { 0xA8,0xFD, 0x00,0x80,0x5F,0x5C,0x44,0x2B }
};

static const guid_t asf_guid_audio_conceal_none =
{
    0x20FB5700,
    0x5B55,
    0x11CF,
    { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B }
};
static const guid_t asf_guid_video_conceal_none =
{
    0x20FB5700,
    0x5B55,
    0x11CF,
    { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B }
};
static const guid_t asf_guid_reserved_1 =
{
    0xABD3D211,
    0xA9BA,
    0x11cf,
    { 0x8E, 0xE6,0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65 }
};
809
static const guid_t asf_object_codec_comment_guid =
810
811
812
813
814
815
{
    0x86D15240,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
816
static const guid_t asf_object_codec_comment_reserved_guid =
817
818
819
820
821
822
{
    0x86D15241,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
823
824
825
826
827
828
829
static const guid_t asf_object_content_description_guid =
{
    0x75B22633,
    0x668E,
    0x11CF,
    { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c }
};
830

831
832
833
834
835
836
837
838
839
840
static void asf_chunk_add( bo_t *bo,
                           int i_type, int i_len, int i_flags, int i_seq )
{
    bo_addle_u16( bo, i_type );
    bo_addle_u16( bo, i_len + 8 );
    bo_addle_u32( bo, i_seq );
    bo_addle_u16( bo, i_flags );
    bo_addle_u16( bo, i_len + 8 );
}

841
static block_t *asf_header_create( sout_mux_t *p_mux,
842
843
844
845
846
                                         vlc_bool_t b_broadcast )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;
    asf_track_t    *tk;

847
    mtime_t        i_duration = 0;
848
    int i_size;
849
    int i_ci_size;
850
    int i_cd_size = 0;
851
    block_t *out;
852
853
854
    bo_t          bo;
    int           i;

855
856
857
858
859
860
861
862
863
    if( p_sys->i_dts_first > 0 )
    {
        i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
        if( i_duration < 0 )
        {
            i_duration = 0;
        }
    }

864
865
    /* calculate header size */
    i_size = 30 + 104 + 46;
866
    i_ci_size = 44;
867
868
869
    for( i = 1; i < p_sys->i_track; i++ )
    {
        i_size += 78 + p_sys->track[i].i_extra;
870
871
872
873
874
875
876
877
878
        i_ci_size += 8 + 2 * strlen( p_sys->track[i].psz_name );
        if( p_sys->track[i].i_cat == AUDIO_ES )
        {
            i_ci_size += 4;
        }
        else if( p_sys->track[i].i_cat == VIDEO_ES )
        {
            i_ci_size += 6;
        }
879
    }
880
881
882
883
884
885
886
887
888
    if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
        *p_sys->psz_comment || *p_sys->psz_rating )
    {
        i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
                             strlen( p_sys->psz_author ) + 1 +
                             strlen( p_sys->psz_copyright ) + 1 +
                             strlen( p_sys->psz_comment ) + 1 +
                             strlen( p_sys->psz_rating ) + 1 );
    }
889

890
    i_size += i_ci_size + i_cd_size;
891

892
893
    if( p_sys->b_asf_http )
    {
894
        out = block_New( p_mux, i_size + 50 + 12 );
895
896
897
898
899
        bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
        asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
    }
    else
    {
900
        out = block_New( p_mux, i_size + 50 );
901
902
        bo_init( &bo, out->p_buffer, i_size + 50 );
    }
903
904
905
    /* header object */
    bo_add_guid ( &bo, &asf_object_header_guid );
    bo_addle_u64( &bo, i_size );
906
    bo_addle_u32( &bo, 2 + p_sys->i_track - 1 );
907
908
909
910
911
912
913
914
915
    bo_add_u8   ( &bo, 1 );
    bo_add_u8   ( &bo, 2 );

    /* sub object */

    /* file properties */
    bo_add_guid ( &bo, &asf_object_file_properties_guid );
    bo_addle_u64( &bo, 104 );
    bo_add_guid ( &bo, &p_sys->fid );
916
    bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
917
                                p_sys->i_packet_size ); /* file size */
918
    bo_addle_u64( &bo, 0 );                 /* creation date */
919
    bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
920
921
    bo_addle_u64( &bo, i_duration * 10 );   /* play duration (100ns) */
    bo_addle_u64( &bo, i_duration * 10 );   /* send duration (100ns) */
922
    bo_addle_u64( &bo, 3000 );              /* preroll duration (ms) */
923
924
925
    bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x00);      /* flags */
    bo_addle_u32( &bo, p_sys->i_packet_size );  /* packet size min */
    bo_addle_u32( &bo, p_sys->i_packet_size );  /* packet size max */
926
    bo_addle_u32( &bo, p_sys->i_bitrate );      /* maxbitrate */
927
928
929
930
931
932
933
934

    /* header extention */
    bo_add_guid ( &bo, &asf_object_header_extention_guid );
    bo_addle_u64( &bo, 46 );
    bo_add_guid ( &bo, &asf_guid_reserved_1 );
    bo_addle_u16( &bo, 6 );
    bo_addle_u32( &bo, 0 );

935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
    /* content description header */
    if( i_cd_size > 0 )
    {
        bo_add_guid ( &bo, &asf_object_content_description_guid );
        bo_addle_u64( &bo, i_cd_size );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );

        bo_addle_str16_nosize( &bo, p_sys->psz_title );
        bo_addle_str16_nosize( &bo, p_sys->psz_author );
        bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
        bo_addle_str16_nosize( &bo, p_sys->psz_comment );
        bo_addle_str16_nosize( &bo, p_sys->psz_rating );
    }

953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
    /* stream properties */
    for( i = 1; i < p_sys->i_track; i++ )
    {
        tk = &p_sys->track[i];

        bo_add_guid ( &bo, &asf_object_stream_properties_guid );
        bo_addle_u64( &bo, 78 + tk->i_extra );
        if( tk->i_cat == AUDIO_ES )
        {
            bo_add_guid( &bo, &asf_object_stream_type_audio );
            bo_add_guid( &bo, &asf_guid_audio_conceal_none );
        }
        else if( tk->i_cat == VIDEO_ES )
        {
            bo_add_guid( &bo, &asf_object_stream_type_video );
            bo_add_guid( &bo, &asf_guid_video_conceal_none );
        }
        bo_addle_u64( &bo, 0 );         /* time offset */
        bo_addle_u32( &bo, tk->i_extra );
        bo_addle_u32( &bo, 0 );         /* 0 */
        bo_addle_u16( &bo, tk->i_id );  /* stream number */
        bo_addle_u32( &bo, 0 );
        bo_add_mem  ( &bo, tk->p_extra, tk->i_extra );
    }

978
    /* Codec Infos */
979
    bo_add_guid ( &bo, &asf_object_codec_comment_guid );
980
    bo_addle_u64( &bo, i_ci_size );
981
    bo_add_guid ( &bo, &asf_object_codec_comment_reserved_guid );
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
    bo_addle_u32( &bo, p_sys->i_track - 1 );
    for( i = 1; i < p_sys->i_track; i++ )
    {
        tk = &p_sys->track[i];

        bo_addle_u16( &bo, tk->i_id );
        bo_addle_str16( &bo, tk->psz_name );
        bo_addle_u16( &bo, 0 );
        if( tk->i_cat == AUDIO_ES )
        {
            bo_addle_u16( &bo, 2 );
            bo_addle_u16( &bo, tk->i_tag );
        }
        else if( tk->i_cat == VIDEO_ES )
        {
            bo_addle_u16( &bo, 4 );
            bo_add_mem  ( &bo, (uint8_t*)&tk->i_fourcc, 4 );

        }
    }

1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
    /* data object */
    bo_add_guid ( &bo, &asf_object_data_guid );
    bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
    bo_add_guid ( &bo, &p_sys->fid );
    bo_addle_u64( &bo, p_sys->i_packet_count );
    bo_addle_u16( &bo, 0x101 );

    return out;
}

/****************************************************************************
 *
 ****************************************************************************/
1016
1017
static block_t *asf_packet_create( sout_mux_t *p_mux,
                                         asf_track_t *tk, block_t *data )
1018
1019
1020
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

1021
    int     i_data = data->i_buffer;
1022
1023
    int     i_pos  = 0;
    uint8_t *p_data= data->p_buffer;
1024
    block_t *first = NULL, **last = &first;
1025
    int     i_preheader = p_sys->b_asf_http ? 12 : 0;
1026
1027
1028
1029
1030
1031
1032
1033

    while( i_pos < i_data )
    {
        bo_t          bo;
        int           i_payload;

        if( p_sys->pk == NULL )
        {
1034
1035
            p_sys->pk = block_New( p_mux,
                                   p_sys->i_packet_size + i_preheader);
1036
            /* reserve 14 bytes for the packet header */
1037
            p_sys->i_pk_used = 14 + i_preheader;
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
            p_sys->i_pk_frame = 0;
            p_sys->i_pk_dts = data->i_dts;
        }


        bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
                      p_sys->i_packet_size - p_sys->i_pk_used );

        /* add payload (header size = 17) */
        i_payload = __MIN( i_data - i_pos,
                           p_sys->i_packet_size - p_sys->i_pk_used - 17 );
        bo_add_u8   ( &bo, 0x80 | tk->i_id );
        bo_add_u8   ( &bo, tk->i_sequence );
        bo_addle_u32( &bo, i_pos );
        bo_add_u8   ( &bo, 0x08 );  /* flags */
        bo_addle_u32( &bo, i_data );
        bo_addle_u32( &bo, ( data->i_dts - p_sys->i_dts_first )/ 1000 );
        bo_addle_u16( &bo, i_payload );
        bo_add_mem  ( &bo, &p_data[i_pos], i_payload );
        i_pos += i_payload;
        p_sys->i_pk_used += 17 + i_payload;

        p_sys->i_pk_frame++;

1062
        if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1063
1064
1065
1066
        {
            /* not enough data for another payload, flush the packet */
            int i_pad = p_sys->i_packet_size - p_sys->i_pk_used;

1067
1068
1069
1070
1071
1072
1073
            bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );

            if( p_sys->b_asf_http )
            {
                asf_chunk_add( &bo, 0x4424,
                               p_sys->i_packet_size, 0x00, p_sys->i_seq++);
            }
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
            bo_add_u8   ( &bo, 0x82 );
            bo_addle_u16( &bo, 0 );
            bo_add_u8( &bo, 0x11 );
            bo_add_u8( &bo, 0x5d );
            bo_addle_u16( &bo, i_pad );
            bo_addle_u32( &bo, ( p_sys->i_pk_dts - p_sys->i_dts_first )/ 1000 );
            bo_addle_u16( &bo, 0 * data->i_length / 1000 );
            bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );

            /* append the packet */
            *last = p_sys->pk;
            last  = &p_sys->pk->p_next;

            p_sys->pk = NULL;

            p_sys->i_packet_count++;
        }
    }

    tk->i_sequence++;
1094
    block_Release( data );
1095
1096
1097
1098

    return first;
}

1099
static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1100
1101
1102
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

1103
    block_t *out = NULL;
1104
    bo_t          bo;
1105

1106
1107
    if( p_sys->b_asf_http )
    {
1108
        out = block_New( p_mux, 12 );
1109
1110
1111
1112
1113
        bo_init( &bo, out->p_buffer, 12 );
        asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
    }
    return out;
}