asf.c 34.3 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
            {
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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 )
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            {
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                bo_add_mem  ( &bo, p_input->p_fmt->p_extra,
                              p_input->p_fmt->i_extra );
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            }

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            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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            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 )
    {
545
        block_t *out = asf_header_create( p_mux, VLC_TRUE );
546

547
        out->i_flags |= BLOCK_FLAG_HEADER;
548
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555
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557
558
        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;
559
560
        block_t *data;
        block_t *pk;
561
562
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564
565
566
567
568
569
570
571

        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;
        }
572
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574
575
        if( p_sys->i_dts_last < i_dts )
        {
            p_sys->i_dts_last = i_dts;
        }
576
577
578
579

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

580
        data = block_FifoGet( p_input->p_fifo );
581
582
583
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591
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595
596
597
598
599
600
601
602

        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];
603
        block_t *p_data;
604
605
606
607
608
609
610
611
612
613
614
615
616

        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;
        }

617
        p_data = block_FifoShow( p_input->p_fifo );
618
619
620
621
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623
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625
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681
        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;
}

682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
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;
        }
    }
}

698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
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;
        }
    }
}

713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
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735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
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753
754
755
756
757
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759
760
761
762
763
764
765
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
/****************************************************************************
 * 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 }
};
804
static const guid_t asf_object_codec_comment_guid =
805
806
807
808
809
810
{
    0x86D15240,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
811
static const guid_t asf_object_codec_comment_reserved_guid =
812
813
814
815
816
817
{
    0x86D15241,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
818
819
820
821
822
823
824
static const guid_t asf_object_content_description_guid =
{
    0x75B22633,
    0x668E,
    0x11CF,
    { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c }
};
825

826
827
828
829
830
831
832
833
834
835
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 );
}

836
static block_t *asf_header_create( sout_mux_t *p_mux,
837
838
839
840
841
                                         vlc_bool_t b_broadcast )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;
    asf_track_t    *tk;

842
    mtime_t        i_duration = 0;
843
    int i_size;
844
    int i_ci_size;
845
    int i_cd_size = 0;
846
    block_t *out;
847
848
849
    bo_t          bo;
    int           i;

850
851
852
853
854
855
856
857
858
    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;
        }
    }

859
860
    /* calculate header size */
    i_size = 30 + 104 + 46;
861
    i_ci_size = 44;
862
863
864
    for( i = 1; i < p_sys->i_track; i++ )
    {
        i_size += 78 + p_sys->track[i].i_extra;
865
866
867
868
869
870
871
872
873
        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;
        }
874
    }
875
876
877
878
879
880
881
882
883
    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 );
    }
884

885
    i_size += i_ci_size + i_cd_size;
886

887
888
    if( p_sys->b_asf_http )
    {
889
        out = block_New( p_mux, i_size + 50 + 12 );
890
891
892
893
894
        bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
        asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
    }
    else
    {
895
        out = block_New( p_mux, i_size + 50 );
896
897
        bo_init( &bo, out->p_buffer, i_size + 50 );
    }
898
899
900
    /* header object */
    bo_add_guid ( &bo, &asf_object_header_guid );
    bo_addle_u64( &bo, i_size );
901
    bo_addle_u32( &bo, 2 + p_sys->i_track - 1 );
902
903
904
905
906
907
908
909
910
    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 );
911
    bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
912
                                p_sys->i_packet_size ); /* file size */
913
    bo_addle_u64( &bo, 0 );                 /* creation date */
914
    bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
915
916
    bo_addle_u64( &bo, i_duration * 10 );   /* play duration (100ns) */
    bo_addle_u64( &bo, i_duration * 10 );   /* send duration (100ns) */
917
    bo_addle_u64( &bo, 3000 );              /* preroll duration (ms) */
918
919
920
    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 */
921
    bo_addle_u32( &bo, p_sys->i_bitrate );      /* maxbitrate */
922
923
924
925
926
927
928
929

    /* 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 );

930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
    /* 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 );
    }

948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
    /* 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 );
    }

973
    /* Codec Infos */
974
    bo_add_guid ( &bo, &asf_object_codec_comment_guid );
975
    bo_addle_u64( &bo, i_ci_size );
976
    bo_add_guid ( &bo, &asf_object_codec_comment_reserved_guid );
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
    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 );

        }
    }

998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
    /* 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;
}

/****************************************************************************
 *
 ****************************************************************************/
1011
1012
static block_t *asf_packet_create( sout_mux_t *p_mux,
                                         asf_track_t *tk, block_t *data )
1013
1014
1015
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

1016
    int     i_data = data->i_buffer;
1017
1018
    int     i_pos  = 0;
    uint8_t *p_data= data->p_buffer;
1019
    block_t *first = NULL, **last = &first;
1020
    int     i_preheader = p_sys->b_asf_http ? 12 : 0;
1021
1022
1023
1024
1025
1026
1027
1028

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

        if( p_sys->pk == NULL )
        {
1029
1030
            p_sys->pk = block_New( p_mux,
                                   p_sys->i_packet_size + i_preheader);
1031
            /* reserve 14 bytes for the packet header */
1032
            p_sys->i_pk_used = 14 + i_preheader;
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
            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++;

1057
        if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1058
1059
1060
1061
        {
            /* not enough data for another payload, flush the packet */
            int i_pad = p_sys->i_packet_size - p_sys->i_pk_used;

1062
1063
1064
1065
1066
1067
1068
            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++);
            }
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
            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++;
1089
    block_Release( data );
1090
1091
1092
1093

    return first;
}

1094
static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1095
1096
1097
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

1098
    block_t *out = NULL;
1099
    bo_t          bo;
1100

1101
1102
    if( p_sys->b_asf_http )
    {
1103
        out = block_New( p_mux, 12 );
1104
1105
1106
1107
1108
        bo_init( &bo, out->p_buffer, 12 );
        asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
    }
    return out;
}