X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fdemux%2Flivedotcom.cpp;h=0f20ade11477ee22cc890ac094fa102f34028057;hb=a90a19a6b0468ea9fedadc27cfc1118d70295263;hp=13c41f9ec7b9c2e52497dded9d0e3951c233664f;hpb=2d0e1f208224c11c107b71ca8f210fef43dacbf3;p=vlc diff --git a/modules/demux/livedotcom.cpp b/modules/demux/livedotcom.cpp index 13c41f9ec7..0f20ade114 100644 --- a/modules/demux/livedotcom.cpp +++ b/modules/demux/livedotcom.cpp @@ -1,8 +1,8 @@ /***************************************************************************** * live.cpp : live.com support. ***************************************************************************** - * Copyright (C) 2003 VideoLAN - * $Id: livedotcom.cpp,v 1.4 2003/11/07 18:08:54 fenrir Exp $ + * Copyright (C) 2003-2004 VideoLAN + * $Id$ * * Authors: Laurent Aimar * @@ -29,77 +29,100 @@ #include #include -#include /* BITMAPINFOHEADER, WAVEFORMATEX */ #include +#if defined( WIN32 ) +# include +#endif + #include "BasicUsageEnvironment.hh" #include "GroupsockHelper.hh" #include "liveMedia.hh" +extern "C" { +#include "../access/mms/asf.h" /* Who said ugly ? */ +} + +#if (LIVEMEDIA_LIBRARY_VERSION_INT < 1089936000) +#define RECLAIM_ENV(env) delete (env) +#else +#define RECLAIM_ENV(env) (env)->reclaim() +#endif + + using namespace std; /***************************************************************************** * Module descriptor *****************************************************************************/ -static int DemuxOpen ( vlc_object_t * ); -static void DemuxClose( vlc_object_t * ); - -static int AccessOpen ( vlc_object_t * ); -static void AccessClose( vlc_object_t * ); +static int Open ( vlc_object_t * ); +static void Close( vlc_object_t * ); -#define CACHING_TEXT N_("Caching value in ms") +#define CACHING_TEXT N_("Caching value (ms)") #define CACHING_LONGTEXT N_( \ - "Allows you to modify the default caching value for rtsp streams. This " \ - "value should be set in miliseconds units." ) + "Allows you to modify the default caching value for RTSP streams. This " \ + "value should be set in millisecond units." ) + +#define KASENNA_TEXT N_( "Kasenna RTSP dialect") +#define KASENNA_LONGTEXT N_( "Kasenna server speaks an old and unstandard dialect of RTSP. " \ + "When you set this parameter, VLC will try this dialect for communication. In " \ + "this mode you cannot talk to normal RTSP servers." ) vlc_module_begin(); set_description( _("live.com (RTSP/RTP/SDP) demuxer" ) ); - set_capability( "demux", 50 ); - set_callbacks( DemuxOpen, DemuxClose ); + set_capability( "demux2", 50 ); + set_name( "Live.com RTP/RTSP"); + set_callbacks( Open, Close ); add_shortcut( "live" ); + set_category( CAT_INPUT ); + set_subcategory( SUBCAT_INPUT_DEMUX ); add_submodule(); - set_description( _("RTSP/RTP describe") ); + set_description( _("RTSP/RTP access and demux") ); add_shortcut( "rtsp" ); - set_capability( "access", 0 ); - set_callbacks( AccessOpen, AccessClose ); - add_category_hint( N_("RTSP"), NULL, VLC_TRUE ); - add_bool( "rtsp-tcp", 0, NULL, - "Use rtp over rtsp(tcp)", - "Use rtp over rtsp(tcp)", VLC_TRUE ); - add_integer( "rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE ); + add_shortcut( "sdp" ); + set_capability( "access_demux", 0 ); + set_callbacks( Open, Close ); + add_bool( "rtsp-tcp", 0, NULL, + N_("Use RTP over RTSP (TCP)"), + N_("Use RTP over RTSP (TCP)"), VLC_TRUE ); + add_integer( "rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL, + CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE ); + add_bool( "rtsp-kasenna", VLC_FALSE, NULL, KASENNA_TEXT, + KASENNA_LONGTEXT, VLC_TRUE ); vlc_module_end(); /* TODO: - * - Support PS/TS (need to rework the TS/PS demuxer a lot). - * - Support X-QT/X-QUICKTIME generic codec. - * - Handle PTS (for now I just use mdate()) + * - Improve support of PS/TS + * - Support X-QT/X-QUICKTIME generic codec for audio. * - * - Check memory leak, delete/free. + * - Check memory leak, delete/free -> still one when using rtsp-tcp but I'm + * not sure if it comes from me. * */ /***************************************************************************** * Local prototypes *****************************************************************************/ -struct access_sys_t -{ - int i_sdp; - char *p_sdp; - - int i_pos; -}; - typedef struct { - input_thread_t *p_input; + demux_t *p_demux; + + vlc_bool_t b_quicktime; + vlc_bool_t b_muxed; + vlc_bool_t b_asf; es_format_t fmt; es_out_id_t *p_es; + stream_t *p_out_muxed; /* for muxed stream */ + + RTPSource *rtpSource; FramedSource *readSource; + vlc_bool_t b_rtcp_sync; - uint8_t buffer[65536]; + uint8_t *p_buffer; + unsigned int i_buffer; char waiting; @@ -115,184 +138,75 @@ struct demux_sys_t UsageEnvironment *env ; RTSPClient *rtsp; + /* */ int i_track; live_track_t **track; /* XXX mallocated */ mtime_t i_pcr; mtime_t i_pcr_start; - char event; -}; - -static ssize_t Read ( input_thread_t *, byte_t *, size_t ); + /* Asf */ + asf_header_t asfh; + stream_t *p_out_asf; -static int Demux ( input_thread_t * ); -static int Control( input_thread_t *, int, va_list ); + /* */ + mtime_t i_length; + mtime_t i_start; + char event; +}; +static int Demux ( demux_t * ); +static int Control( demux_t *, int, va_list ); -/***************************************************************************** - * AccessOpen: - *****************************************************************************/ -static int AccessOpen( vlc_object_t *p_this ) -{ - input_thread_t *p_input = (input_thread_t *)p_this; - access_sys_t *p_sys; - - TaskScheduler *scheduler = NULL; - UsageEnvironment *env = NULL; - RTSPClient *rtsp = NULL; - - vlc_value_t val; - char *psz_url; - - if( p_input->psz_access == NULL || strcasecmp( p_input->psz_access, "rtsp" ) ) - { - msg_Warn( p_input, "RTSP access discarded" ); - return VLC_EGENERIC; - } - if( ( scheduler = BasicTaskScheduler::createNew() ) == NULL ) - { - msg_Err( p_input, "BasicTaskScheduler::createNew failed" ); - return VLC_EGENERIC; - } - if( ( env = BasicUsageEnvironment::createNew(*scheduler) ) == NULL ) - { - delete scheduler; - msg_Err( p_input, "BasicUsageEnvironment::createNew failed" ); - return VLC_EGENERIC; - } - if( ( rtsp = RTSPClient::createNew(*env, 1/*verbose*/, "VLC Media Player" ) ) == NULL ) - { - delete env; - delete scheduler; - msg_Err( p_input, "RTSPClient::createNew failed" ); - return VLC_EGENERIC; - } - - psz_url = (char*)malloc( strlen( p_input->psz_name ) + 8 ); - sprintf( psz_url, "rtsp://%s", p_input->psz_name ); - - p_sys = (access_sys_t*)malloc( sizeof( access_sys_t ) ); - p_sys->p_sdp = rtsp->describeURL( psz_url ); - - if( p_sys->p_sdp == NULL ) - { - msg_Err( p_input, "describeURL failed (%s)", env->getResultMsg() ); - - free( psz_url ); - delete env; - delete scheduler; - free( p_sys ); - return VLC_EGENERIC; - } - free( psz_url ); - p_sys->i_sdp = strlen( p_sys->p_sdp ); - p_sys->i_pos = 0; - - //fprintf( stderr, "sdp=%s\n", p_sys->p_sdp ); - - delete env; - delete scheduler; - - var_Create( p_input, "rtsp-tcp", VLC_VAR_BOOL|VLC_VAR_DOINHERIT ); - var_Get( p_input, "rtsp-tcp", &val ); - - p_input->p_access_data = p_sys; - p_input->i_mtu = 0; - - /* Set exported functions */ - p_input->pf_read = Read; - p_input->pf_seek = NULL; - p_input->pf_set_program = input_SetProgram; - p_input->pf_set_area = NULL; - p_input->p_private = NULL; - - p_input->psz_demux = "live"; - - /* Finished to set some variable */ - vlc_mutex_lock( &p_input->stream.stream_lock ); - /* FIXME that's not true but eg over tcp, server send data too fast */ - p_input->stream.b_pace_control = val.b_bool; - p_input->stream.p_selected_area->i_tell = 0; - p_input->stream.b_seekable = 1; /* Hack to display time */ - p_input->stream.p_selected_area->i_size = 0; - p_input->stream.i_method = INPUT_METHOD_NETWORK; - vlc_mutex_unlock( &p_input->stream.stream_lock ); - - /* Update default_pts to a suitable value for RTSP access */ - var_Create( p_input, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT ); - var_Get( p_input, "rtsp-caching", &val ); - p_input->i_pts_delay = val.i_int * 1000; - - return VLC_SUCCESS; -} - -/***************************************************************************** - * AccessClose: - *****************************************************************************/ -static void AccessClose( vlc_object_t *p_this ) -{ - input_thread_t *p_input = (input_thread_t *)p_this; - access_sys_t *p_sys = p_input->p_access_data; - - delete[] p_sys->p_sdp; - free( p_sys ); -} - -/***************************************************************************** - * Read: - *****************************************************************************/ -static ssize_t Read ( input_thread_t *p_input, byte_t *p_buffer, size_t i_len ) -{ - access_sys_t *p_sys = p_input->p_access_data; - int i_copy = __MIN( (int)i_len, p_sys->i_sdp - p_sys->i_pos ); +static int ParseASF( demux_t * ); - if( i_copy > 0 ) - { - memcpy( p_buffer, &p_sys->p_sdp[p_sys->i_pos], i_copy ); - p_sys->i_pos += i_copy; - } - return i_copy; -} +static void StreamRead( void *p_private, unsigned int i_size, unsigned int i_truncated_bytes, struct timeval pts, unsigned int i_duration ); +static void StreamClose( void *p_private ); +static void TaskInterrupt( void *p_private ); /***************************************************************************** * DemuxOpen: *****************************************************************************/ -static int DemuxOpen ( vlc_object_t *p_this ) +static int Open ( vlc_object_t *p_this ) { - input_thread_t *p_input = (input_thread_t *)p_this; - demux_sys_t *p_sys; + demux_t *p_demux = (demux_t*)p_this; + demux_sys_t *p_sys; MediaSubsessionIterator *iter; MediaSubsession *sub; - vlc_value_t val; - + vlc_bool_t b_rtsp_tcp; uint8_t *p_peek; int i_sdp; int i_sdp_max; uint8_t *p_sdp; - /* See if it looks like a SDP - v, o, s fields are mandatory and in this order */ - if( stream_Peek( p_input->s, &p_peek, 7 ) < 7 ) + if( p_demux->s ) { - msg_Err( p_input, "cannot peek" ); - return VLC_EGENERIC; + /* See if it looks like a SDP + v, o, s fields are mandatory and in this order */ + if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) + { + msg_Err( p_demux, "cannot peek" ); + return VLC_EGENERIC; + } + if( strncmp( (char*)p_peek, "v=0\r\n", 5 ) && strncmp( (char*)p_peek, "v=0\n", 4 ) && + ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) ) + { + msg_Warn( p_demux, "SDP module discarded" ); + return VLC_EGENERIC; + } } - if( strncmp( (char*)p_peek, "v=0\r\n", 5 ) && strncmp( (char*)p_peek, "v=0\n", 4 ) && - ( p_input->psz_access == NULL || strcasecmp( p_input->psz_access, "rtsp" ) || - p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) ) + else { - msg_Warn( p_input, "SDP module discarded" ); - return VLC_EGENERIC; + var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT ); } - p_input->pf_demux = Demux; - p_input->pf_demux_control = Control; - p_input->p_demux_data = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) ); + p_demux->pf_demux = Demux; + p_demux->pf_control= Control; + p_demux->p_sys = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) ); p_sys->p_sdp = NULL; p_sys->scheduler = NULL; p_sys->env = NULL; @@ -302,109 +216,138 @@ static int DemuxOpen ( vlc_object_t *p_this ) p_sys->track = NULL; p_sys->i_pcr = 0; p_sys->i_pcr_start = 0; + p_sys->i_length = 0; + p_sys->i_start = 0; + p_sys->p_out_asf = NULL; - /* Gather the complete sdp file */ - i_sdp = 0; - i_sdp_max = 1000; - p_sdp = (uint8_t*)malloc( i_sdp_max ); - for( ;; ) - { - int i_read = stream_Read( p_input->s, &p_sdp[i_sdp], i_sdp_max - i_sdp - 1 ); - - if( i_read < 0 ) - { - msg_Err( p_input, "failed to read SDP" ); - free( p_sys ); - return VLC_EGENERIC; - } - - i_sdp += i_read; - - if( i_read < i_sdp_max - i_sdp - 1 ) - { - p_sdp[i_sdp] = '\0'; - break; - } - - i_sdp_max += 1000; - p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max ); - } - p_sys->p_sdp = (char*)p_sdp; - - fprintf( stderr, "sdp=%s\n", p_sys->p_sdp ); if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL ) { - msg_Err( p_input, "BasicTaskScheduler::createNew failed" ); + msg_Err( p_demux, "BasicTaskScheduler::createNew failed" ); goto error; } if( ( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) == NULL ) { - msg_Err( p_input, "BasicUsageEnvironment::createNew failed" ); + msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" ); goto error; } - if( p_input->psz_access != NULL && !strcasecmp( p_input->psz_access, "rtsp" ) ) + + if( p_demux->s == NULL && !strcasecmp( p_demux->psz_access, "rtsp" ) ) { char *psz_url; char *psz_options; if( ( p_sys->rtsp = RTSPClient::createNew(*p_sys->env, 1/*verbose*/, "VLC Media Player" ) ) == NULL ) { - msg_Err( p_input, "RTSPClient::createNew failed (%s)", p_sys->env->getResultMsg() ); + msg_Err( p_demux, "RTSPClient::createNew failed (%s)", p_sys->env->getResultMsg() ); goto error; } - psz_url = (char*)malloc( strlen( p_input->psz_name ) + 8 ); - sprintf( psz_url, "rtsp://%s", p_input->psz_name ); + psz_url = (char*)malloc( strlen( p_demux->psz_path ) + 8 ); + sprintf( psz_url, "rtsp://%s", p_demux->psz_path ); psz_options = p_sys->rtsp->sendOptionsCmd( psz_url ); - /* FIXME psz_options -> delete or free */ + if( psz_options ) + delete [] psz_options; + + p_sdp = (uint8_t*)p_sys->rtsp->describeURL( psz_url, + NULL, var_CreateGetBool( p_demux, "rtsp-kasenna" ) ); + if( p_sdp == NULL ) + { + msg_Err( p_demux, "describeURL failed (%s)", p_sys->env->getResultMsg() ); + + free( psz_url ); + goto error; + } free( psz_url ); + + /* malloc-ated copy */ + p_sys->p_sdp = strdup( (char*)p_sdp ); + delete[] p_sdp; + fprintf( stderr, "sdp=%s\n", p_sys->p_sdp ); + } + else if( p_demux->s == NULL && !strcasecmp( p_demux->psz_access, "sdp" ) ) + { + p_sys->p_sdp = strdup( p_demux->psz_path ); + } + else + { + /* Gather the complete sdp file */ + i_sdp = 0; + i_sdp_max = 1000; + p_sdp = (uint8_t*)malloc( i_sdp_max ); + for( ;; ) + { + int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp], i_sdp_max - i_sdp - 1 ); + + if( i_read < 0 ) + { + msg_Err( p_demux, "failed to read SDP" ); + free( p_sys ); + return VLC_EGENERIC; + } + + i_sdp += i_read; + + if( i_read < i_sdp_max - i_sdp - 1 ) + { + p_sdp[i_sdp] = '\0'; + break; + } + + i_sdp_max += 1000; + p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max ); + } + p_sys->p_sdp = (char*)p_sdp; + + msg_Dbg( p_demux, "sdp=%s\n", p_sys->p_sdp ); } if( ( p_sys->ms = MediaSession::createNew(*p_sys->env, p_sys->p_sdp ) ) == NULL ) { - msg_Err( p_input, "MediaSession::createNew failed" ); + msg_Err( p_demux, "MediaSession::createNew failed" ); goto error; } - var_Create( p_input, "rtsp-tcp", VLC_VAR_BOOL|VLC_VAR_DOINHERIT ); - var_Get( p_input, "rtsp-tcp", &val ); + b_rtsp_tcp = var_CreateGetBool( p_demux, "rtsp-tcp" ); /* Initialise each media subsession */ iter = new MediaSubsessionIterator( *p_sys->ms ); while( ( sub = iter->next() ) != NULL ) { unsigned int i_buffer = 0; + Boolean bInit; /* Value taken from mplayer */ if( !strcmp( sub->mediumName(), "audio" ) ) - { i_buffer = 100000; - } else if( !strcmp( sub->mediumName(), "video" ) ) - { i_buffer = 2000000; - } else - { continue; - } - if( !sub->initiate() ) + if( !strcmp( sub->codecName(), "X-ASF-PF" ) ) + bInit = sub->initiate( 4 ); /* Constant ? */ + else + bInit = sub->initiate(); + + if( !bInit ) { - msg_Warn( p_input, "RTP subsession '%s/%s' failed(%s)", sub->mediumName(), sub->codecName(), p_sys->env->getResultMsg() ); + msg_Warn( p_demux, "RTP subsession '%s/%s' failed(%s)", sub->mediumName(), sub->codecName(), p_sys->env->getResultMsg() ); } else { - int fd = sub->rtpSource()->RTPgs()->socketNum(); + if( sub->rtpSource() ) + { + int fd = sub->rtpSource()->RTPgs()->socketNum(); + /* Increase the buffer size */ + increaseReceiveBufferTo( *p_sys->env, fd, i_buffer ); + } - msg_Warn( p_input, "RTP subsession '%s/%s'", sub->mediumName(), sub->codecName() ); + msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(), sub->codecName() ); - /* Increase the buffer size */ - increaseReceiveBufferTo( *p_sys->env, fd, i_buffer ); /* Issue the SETUP */ if( p_sys->rtsp ) { - p_sys->rtsp->setupMediaSubsession( *sub, False, val.b_bool ? True : False ); + p_sys->rtsp->setupMediaSubsession( *sub, False, b_rtsp_tcp ? True : False ); } } } @@ -414,7 +357,7 @@ static int DemuxOpen ( vlc_object_t *p_this ) /* The PLAY */ if( !p_sys->rtsp->playMediaSession( *p_sys->ms ) ) { - msg_Err( p_input, "PLAY failed %s", p_sys->env->getResultMsg() ); + msg_Err( p_demux, "PLAY failed %s", p_sys->env->getResultMsg() ); goto error; } } @@ -431,28 +374,36 @@ static int DemuxOpen ( vlc_object_t *p_this ) } tk = (live_track_t*)malloc( sizeof( live_track_t ) ); - tk->p_input = p_input; + tk->p_demux = p_demux; tk->waiting = 0; tk->i_pts = 0; + tk->b_quicktime = VLC_FALSE; + tk->b_muxed = VLC_FALSE; + tk->b_asf = VLC_FALSE; + tk->b_rtcp_sync = VLC_FALSE; + tk->p_out_muxed = NULL; + tk->p_es = NULL; + tk->i_buffer = 65536; + tk->p_buffer = (uint8_t *)malloc( 65536 ); /* Value taken from mplayer */ if( !strcmp( sub->mediumName(), "audio" ) ) { es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC( 'u', 'n', 'd', 'f' ) ); tk->fmt.audio.i_channels = sub->numChannels(); - tk->fmt.audio.i_samplerate = sub->rtpSource()->timestampFrequency(); + tk->fmt.audio.i_rate = sub->rtpSource()->timestampFrequency(); if( !strcmp( sub->codecName(), "MPA" ) || !strcmp( sub->codecName(), "MPA-ROBUST" ) || !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) ) { tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' ); - tk->fmt.audio.i_samplerate = 0; + tk->fmt.audio.i_rate = 0; } else if( !strcmp( sub->codecName(), "AC3" ) ) { tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' ); - tk->fmt.audio.i_samplerate = 0; + tk->fmt.audio.i_rate = 0; } else if( !strcmp( sub->codecName(), "L16" ) ) { @@ -481,9 +432,8 @@ static int DemuxOpen ( vlc_object_t *p_this ) if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(), i_extra ) ) ) { - tk->fmt.i_extra_type = ES_EXTRA_TYPE_WAVEFORMATEX; tk->fmt.i_extra = i_extra; - tk->fmt.p_extra = malloc( sizeof( i_extra ) ); + tk->fmt.p_extra = malloc( i_extra ); memcpy( tk->fmt.p_extra, p_extra, i_extra ); delete[] p_extra; } @@ -497,13 +447,18 @@ static int DemuxOpen ( vlc_object_t *p_this ) if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(), i_extra ) ) ) { - tk->fmt.i_extra_type = ES_EXTRA_TYPE_WAVEFORMATEX; tk->fmt.i_extra = i_extra; tk->fmt.p_extra = malloc( i_extra ); memcpy( tk->fmt.p_extra, p_extra, i_extra ); delete[] p_extra; } } + else if( !strcmp( sub->codecName(), "X-ASF-PF" ) ) + { + tk->b_asf = VLC_TRUE; + if( p_sys->p_out_asf == NULL ) + p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf", p_demux->out );; + } } else if( !strcmp( sub->mediumName(), "video" ) ) { @@ -513,17 +468,18 @@ static int DemuxOpen ( vlc_object_t *p_this ) tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' ); } else if( !strcmp( sub->codecName(), "H263" ) || - !strcmp( sub->codecName(), "H263-1998" ) ) + !strcmp( sub->codecName(), "H263-1998" ) || + !strcmp( sub->codecName(), "H263-2000" ) ) { - tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' ); + tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' ); } else if( !strcmp( sub->codecName(), "H261" ) ) { - tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '1' ); + tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' ); } else if( !strcmp( sub->codecName(), "JPEG" ) ) { - tk->fmt.i_codec = VLC_FOURCC( 'J', 'P', 'E', 'G' ); + tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' ); } else if( !strcmp( sub->codecName(), "MP4V-ES" ) ) { @@ -534,24 +490,54 @@ static int DemuxOpen ( vlc_object_t *p_this ) if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(), i_extra ) ) ) { - tk->fmt.i_extra_type = ES_EXTRA_TYPE_BITMAPINFOHEADER; tk->fmt.i_extra = i_extra; tk->fmt.p_extra = malloc( i_extra ); memcpy( tk->fmt.p_extra, p_extra, i_extra ); delete[] p_extra; } } + else if( !strcmp( sub->codecName(), "X-QT" ) || !strcmp( sub->codecName(), "X-QUICKTIME" ) || + !strcmp( sub->codecName(), "X-QDM" ) || !strcmp( sub->codecName(), "X-SV3V-ES" ) || + !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) ) + { + tk->b_quicktime = VLC_TRUE; + } + else if( !strcmp( sub->codecName(), "MP2T" ) ) + { + tk->b_muxed = VLC_TRUE; + tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out ); + } + else if( !strcmp( sub->codecName(), "MP2P" ) || !strcmp( sub->codecName(), "MP1S" ) ) + { + tk->b_muxed = VLC_TRUE; + tk->p_out_muxed = stream_DemuxNew( p_demux, "ps", p_demux->out ); + } + else if( !strcmp( sub->codecName(), "X-ASF-PF" ) ) + { + tk->b_asf = VLC_TRUE; + if( p_sys->p_out_asf == NULL ) + p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf", p_demux->out );; + } } if( tk->fmt.i_codec != VLC_FOURCC( 'u', 'n', 'd', 'f' ) ) { - tk->p_es = es_out_Add( p_input->p_es_out, &tk->fmt ); + tk->p_es = es_out_Add( p_demux->out, &tk->fmt ); + } + + if( sub->rtcpInstance() != NULL ) + { + sub->rtcpInstance()->setByeHandler( StreamClose, tk ); } - if( tk->p_es ) + if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf ) { - TAB_APPEND( p_sys->i_track, (void**)p_sys->track, (void*)tk ); tk->readSource = sub->readSource(); + tk->rtpSource = sub->rtpSource(); + + /* Append */ + p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) ); + p_sys->track[p_sys->i_track++] = tk; } else { @@ -559,12 +545,39 @@ static int DemuxOpen ( vlc_object_t *p_this ) } } - delete iter; + if( p_sys->p_out_asf && ParseASF( p_demux ) ) + { + msg_Err( p_demux, "cannot find a usable asf header" ); + /* TODO Clean tracks */ + goto error; + } + + p_sys->i_length = (mtime_t)(p_sys->ms->playEndTime() * 1000000.0); + if( p_sys->i_length < 0 ) + { + p_sys->i_length = 0; + } + else if( p_sys->i_length > 0 ) + { + /* FIXME */ + /* p_input->stream.p_selected_area->i_size = 1000;*/ /* needed for now */ + } + + if( p_sys->i_track <= 0 ) + { + msg_Err( p_demux, "no codec supported, aborting" ); + goto error; + } + return VLC_SUCCESS; error: + if( p_sys->p_out_asf ) + { + stream_DemuxDelete( p_sys->p_out_asf ); + } if( p_sys->ms ) { Medium::close( p_sys->ms ); @@ -575,7 +588,7 @@ error: } if( p_sys->env ) { - delete p_sys->env; + RECLAIM_ENV(p_sys->env); } if( p_sys->scheduler ) { @@ -594,22 +607,31 @@ error: /***************************************************************************** * DemuxClose: *****************************************************************************/ -static void DemuxClose( vlc_object_t *p_this ) +static void Close( vlc_object_t *p_this ) { - input_thread_t *p_input = (input_thread_t *)p_this; - demux_sys_t *p_sys = p_input->p_demux_data; + demux_t *p_demux = (demux_t*)p_this; + demux_sys_t *p_sys = p_demux->p_sys; int i; for( i = 0; i < p_sys->i_track; i++ ) { live_track_t *tk = p_sys->track[i]; + if( tk->b_muxed ) + { + stream_DemuxDelete( tk->p_out_muxed ); + } + free( tk->p_buffer ); free( tk ); } if( p_sys->i_track ) { free( p_sys->track ); } + if( p_sys->p_out_asf ) + { + stream_DemuxDelete( p_sys->p_out_asf ); + } if( p_sys->rtsp && p_sys->ms ) { @@ -624,7 +646,7 @@ static void DemuxClose( vlc_object_t *p_this ) if( p_sys->env ) { - delete p_sys->env; + RECLAIM_ENV(p_sys->env); } if( p_sys->scheduler ) { @@ -637,19 +659,15 @@ static void DemuxClose( vlc_object_t *p_this ) free( p_sys ); } - -static void StreamRead( void *p_private, unsigned int i_size, struct timeval pts ); -static void StreamClose( void *p_private ); -static void TaskInterrupt( void *p_private ); - /***************************************************************************** * Demux: *****************************************************************************/ -static int Demux ( input_thread_t *p_input ) +static int Demux( demux_t *p_demux ) { - demux_sys_t *p_sys = p_input->p_demux_data; + demux_sys_t *p_sys = p_demux->p_sys; TaskToken task; + vlc_bool_t b_send_pcr = VLC_TRUE; mtime_t i_pcr = 0; int i; @@ -657,6 +675,9 @@ static int Demux ( input_thread_t *p_input ) { live_track_t *tk = p_sys->track[i]; + if( tk->b_asf || tk->b_muxed ) + b_send_pcr = VLC_FALSE; + if( i_pcr == 0 ) { i_pcr = tk->i_pts; @@ -666,13 +687,14 @@ static int Demux ( input_thread_t *p_input ) i_pcr = tk->i_pts ; } } - if( i_pcr != p_sys->i_pcr ) + if( i_pcr != p_sys->i_pcr && i_pcr > 0 ) { - input_ClockManageRef( p_input, - p_input->stream.p_selected_program, - i_pcr * 9 / 100 ); p_sys->i_pcr = i_pcr; - if( p_sys->i_pcr_start <= 0 || p_sys->i_pcr_start > i_pcr ) + + if( b_send_pcr ) + es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pcr ); + if( p_sys->i_pcr_start <= 0 || p_sys->i_pcr_start > i_pcr || + ( p_sys->i_length > 0 && i_pcr - p_sys->i_pcr_start > p_sys->i_length ) ) { p_sys->i_pcr_start = i_pcr; } @@ -687,13 +709,13 @@ static int Demux ( input_thread_t *p_input ) if( tk->waiting == 0 ) { tk->waiting = 1; - tk->readSource->getNextFrame( tk->buffer, 65536, + tk->readSource->getNextFrame( tk->p_buffer, tk->i_buffer, StreamRead, tk, StreamClose, tk ); } } /* Create a task that will be called if we wait more than 300ms */ - task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_input ); + task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux ); /* Do the read */ p_sys->scheduler->doEventLoop( &p_sys->event ); @@ -701,75 +723,277 @@ static int Demux ( input_thread_t *p_input ) /* remove the task */ p_sys->scheduler->unscheduleDelayedTask( task ); - return p_input->b_error ? 0 : 1; + /* Check for gap in pts value */ + for( i = 0; i < p_sys->i_track; i++ ) + { + live_track_t *tk = p_sys->track[i]; + + if( !tk->b_muxed && !tk->b_rtcp_sync && tk->rtpSource->hasBeenSynchronizedUsingRTCP() ) + { + msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" ); + + es_out_Control( p_demux->out, ES_OUT_RESET_PCR ); + tk->b_rtcp_sync = VLC_TRUE; + + /* reset PCR and PCR start, mmh won't work well for multi-stream I fear */ + tk->i_pts = 0; + p_sys->i_pcr_start = 0; + p_sys->i_pcr = 0; + i_pcr = 0; + } + } + + return p_demux->b_error ? 0 : 1; } -static int Control( input_thread_t *p_input, int i_query, va_list args ) +/***************************************************************************** + * Control: + *****************************************************************************/ +static int Control( demux_t *p_demux, int i_query, va_list args ) { - demux_sys_t *p_sys = p_input->p_demux_data; + demux_sys_t *p_sys = p_demux->p_sys; int64_t *pi64; + double *pf, f; + vlc_bool_t *pb, b_bool; + int i; switch( i_query ) { case DEMUX_GET_TIME: pi64 = (int64_t*)va_arg( args, int64_t * ); - *pi64 = p_sys->i_pcr - p_sys->i_pcr_start; + *pi64 = p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start; + return VLC_SUCCESS; + + case DEMUX_GET_LENGTH: + pi64 = (int64_t*)va_arg( args, int64_t * ); + *pi64 = p_sys->i_length; + return VLC_SUCCESS; + + case DEMUX_GET_POSITION: + pf = (double*)va_arg( args, double* ); + if( p_sys->i_length > 0 ) + { + *pf = (double)( p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start)/ + (double)(p_sys->i_length); + } + else + { + *pf = 0; + } + return VLC_SUCCESS; + + case DEMUX_SET_POSITION: + { + float time; + + f = (double)va_arg( args, double ); + time = f * (double)p_sys->i_length / 1000000.0; /* in second */ + + if( p_sys->rtsp && p_sys->i_length > 0 ) + { + MediaSubsessionIterator *iter = new MediaSubsessionIterator( *p_sys->ms ); + MediaSubsession *sub; + int i; + + while( ( sub = iter->next() ) != NULL ) + { + p_sys->rtsp->playMediaSubsession( *sub, time ); + } + delete iter; + p_sys->i_start = (mtime_t)(f * (double)p_sys->i_length); + p_sys->i_pcr_start = 0; + p_sys->i_pcr = 0; + + for( i = 0; i < p_sys->i_track; i++ ) + { + p_sys->track[i]->i_pts = 0; + } + return VLC_SUCCESS; + } + return VLC_SUCCESS; + } + + /* Special for access_demux */ + case DEMUX_CAN_PAUSE: + pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * ); + if( p_sys->rtsp && p_sys->i_length ) + *pb = VLC_TRUE; /* Not always true, but will be handled in SET_PAUSE_STATE */ + else + *pb = VLC_FALSE; + return VLC_SUCCESS; + + case DEMUX_CAN_CONTROL_PACE: + pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * ); + *pb = VLC_FALSE; + return VLC_SUCCESS; + + case DEMUX_SET_PAUSE_STATE: + double d_npt; + MediaSubsessionIterator *iter; + MediaSubsession *sub; + + d_npt = ( (double)( p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start ) ) / 1000000.00; + + b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t ); + if( p_sys->rtsp == NULL ) + return VLC_EGENERIC; + + iter = new MediaSubsessionIterator( *p_sys->ms ); + while( ( sub = iter->next() ) != NULL ) + { + if( ( b_bool && !p_sys->rtsp->pauseMediaSubsession( *sub ) ) || + ( !b_bool && !p_sys->rtsp->playMediaSubsession( *sub, d_npt > 0 ? d_npt : -1 ) ) ) + { + delete iter; + return VLC_EGENERIC; + } + } + delete iter; +#if 0 + /* reset PCR and PCR start, mmh won't work well for multi-stream I fear */ + for( i = 0; i < p_sys->i_track; i++ ) + { + p_sys->track[i]->i_pts = 0; + } + p_sys->i_pcr_start = 0; /* FIXME Wrong */ + p_sys->i_pcr = 0; +#endif + return VLC_SUCCESS; + + case DEMUX_GET_TITLE_INFO: + case DEMUX_SET_TITLE: + case DEMUX_SET_SEEKPOINT: + return VLC_EGENERIC; + + case DEMUX_GET_PTS_DELAY: + pi64 = (int64_t*)va_arg( args, int64_t * ); + *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * I64C(1000); return VLC_SUCCESS; default: - return demux_vaControlDefault( p_input, i_query, args ); + return VLC_EGENERIC; } } /***************************************************************************** * *****************************************************************************/ -static void StreamRead( void *p_private, unsigned int i_size, struct timeval pts ) +static void StreamRead( void *p_private, unsigned int i_size, unsigned int i_truncated_bytes, struct timeval pts, unsigned int duration ) { live_track_t *tk = (live_track_t*)p_private; - input_thread_t *p_input = tk->p_input; - demux_sys_t *p_sys = p_input->p_demux_data; - pes_packet_t *p_pes; - data_packet_t *p_data; + demux_t *p_demux = tk->p_demux; + demux_sys_t *p_sys = p_demux->p_sys; + block_t *p_block; + + mtime_t i_pts = (uint64_t)pts.tv_sec * UI64C(1000000) + (uint64_t)pts.tv_usec; + + /* XXX Beurk beurk beurk Avoid having negative value XXX */ + i_pts &= UI64C(0x00ffffffffffffff); + + if( tk->b_quicktime && tk->p_es == NULL ) + { + QuickTimeGenericRTPSource *qtRTPSource = (QuickTimeGenericRTPSource*)tk->rtpSource; + QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState; + uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4]; - mtime_t i_pts = (mtime_t)pts.tv_sec * 1000000LL + (mtime_t)pts.tv_usec; + if( qtState.sdAtomSize < 16 + 32 ) + { + /* invalid */ + p_sys->event = 0xff; + tk->waiting = 0; + return; + } + tk->fmt.i_codec = VLC_FOURCC( sdAtom[0], sdAtom[1], sdAtom[2], sdAtom[3] ); + tk->fmt.video.i_width = (sdAtom[28] << 8) | sdAtom[29]; + tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31]; + + tk->fmt.i_extra = qtState.sdAtomSize - 16; + tk->fmt.p_extra = malloc( tk->fmt.i_extra ); + memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra ); + + tk->p_es = es_out_Add( p_demux->out, &tk->fmt ); + } #if 0 fprintf( stderr, "StreamRead size=%d pts=%lld\n", i_size, pts.tv_sec * 1000000LL + pts.tv_usec ); #endif - /* Create a PES */ - if( ( p_pes = input_NewPES( p_input->p_method_data ) ) == NULL ) + + /* grow buffer if it looks like buffer is too small, but don't eat + * up all the memory on strange streams */ + if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 ) + { + void *p_tmp; + msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes ); + msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 ); + tk->i_buffer *= 2; + p_tmp = realloc( tk->p_buffer, tk->i_buffer ); + if (p_tmp == NULL) + { + msg_Warn( p_demux, "realloc failed" ); + } + else + { + tk->p_buffer = (uint8_t*)p_tmp; + } + } + if( i_size > tk->i_buffer ) { - return; + msg_Warn( p_demux, "buffer overflow" ); } /* FIXME could i_size be > buffer size ? */ - p_data = input_NewPacket( p_input->p_method_data, i_size ); + if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','1') ) + { +#if LIVEMEDIA_LIBRARY_VERSION_INT >= 1081468800 + H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->rtpSource; + uint32_t header = h261Source->lastSpecialHeader(); +#else + uint32_t header = 0; + msg_Warn( p_demux, "need livemedia library >= \"2004.04.09\"" ); +#endif + p_block = block_New( p_demux, i_size + 4 ); + memcpy( p_block->p_buffer, &header, 4 ); + memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size ); + } + else if( tk->b_asf ) + { + int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, i_size ); + p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size ); - memcpy( p_data->p_payload_start, tk->buffer, i_size ); - p_data->p_payload_end = p_data->p_payload_start + i_size; + memcpy( p_block->p_buffer, tk->p_buffer, i_copy ); + } + else + { + p_block = block_New( p_demux, i_size ); + memcpy( p_block->p_buffer, tk->p_buffer, i_size ); + } + if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','1') && + tk->rtpSource->curPacketMarkerBit() ) + { + p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME; + } + //p_block->i_rate = p_input->stream.control.i_rate; - p_pes->p_first = p_pes->p_last = p_data; - p_pes->i_nb_data = 1; - p_pes->i_pes_size = i_size; - p_pes->i_rate = p_input->stream.control.i_rate; + if( i_pts != tk->i_pts && !tk->b_muxed ) + { + p_block->i_dts = i_pts; + p_block->i_pts = i_pts; + } + //fprintf( stderr, "tk -> dpts=%lld\n", i_pts - tk->i_pts ); - if( i_pts != tk->i_pts ) + if( tk->b_muxed ) + { + stream_DemuxSend( tk->p_out_muxed, p_block ); + } + else if( tk->b_asf ) { - p_pes->i_dts = - p_pes->i_pts = input_ClockGetTS( p_input, - p_input->stream.p_selected_program, - i_pts * 9 / 100 ); + stream_DemuxSend( p_sys->p_out_asf, p_block ); } else { - p_pes->i_dts = 0; - p_pes->i_pts = 0; + es_out_Send( p_demux->out, tk->p_es, p_block ); } - //fprintf( stderr, "tk -> dpts=%lld\n", i_pts - tk->i_pts ); - - es_out_Send( p_input->p_es_out, tk->p_es, p_pes ); /* warm that's ok */ p_sys->event = 0xff; @@ -777,7 +1001,10 @@ static void StreamRead( void *p_private, unsigned int i_size, struct timeval pts /* we have read data */ tk->waiting = 0; - tk->i_pts = i_pts; + if( i_pts > 0 && !tk->b_muxed ) + { + tk->i_pts = i_pts; + } } /***************************************************************************** @@ -786,13 +1013,13 @@ static void StreamRead( void *p_private, unsigned int i_size, struct timeval pts static void StreamClose( void *p_private ) { live_track_t *tk = (live_track_t*)p_private; - input_thread_t *p_input = tk->p_input; - demux_sys_t *p_sys = p_input->p_demux_data; + demux_t *p_demux = tk->p_demux; + demux_sys_t *p_sys = p_demux->p_sys; fprintf( stderr, "StreamClose\n" ); p_sys->event = 0xff; - p_input->b_error = VLC_TRUE; + p_demux->b_error = VLC_TRUE; } @@ -801,11 +1028,121 @@ static void StreamClose( void *p_private ) *****************************************************************************/ static void TaskInterrupt( void *p_private ) { - input_thread_t *p_input = (input_thread_t*)p_private; + demux_t *p_demux = (demux_t*)p_private; fprintf( stderr, "TaskInterrupt\n" ); /* Avoid lock */ - p_input->p_demux_data->event = 0xff; + p_demux->p_sys->event = 0xff; +} + +/***************************************************************************** + * + *****************************************************************************/ +static int b64_decode( char *dest, char *src ); + +static int ParseASF( demux_t *p_demux ) +{ + demux_sys_t *p_sys = p_demux->p_sys; + + const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,"; + char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker ); + char *psz_end; + block_t *p_header; + + /* Parse the asf header */ + if( psz_asf == NULL ) + return VLC_EGENERIC; + + psz_asf += strlen( psz_marker ); + psz_asf = strdup( psz_asf ); /* Duplicate it */ + psz_end = strchr( psz_asf, '\n' ); + + while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) ) + *psz_end-- = '\0'; + + if( psz_asf >= psz_end ) + { + free( psz_asf ); + return VLC_EGENERIC; + } + + /* Always smaller */ + p_header = block_New( p_demux, psz_end - psz_asf ); + p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf ); + fprintf( stderr, "Size=%d Hdrb64=%s\n", p_header->i_buffer, psz_asf ); + if( p_header->i_buffer <= 0 ) + { + free( psz_asf ); + return VLC_EGENERIC; + } + + /* Parse it to get packet size */ + E_(asf_HeaderParse)( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer ); + + /* Send it to demuxer */ + stream_DemuxSend( p_sys->p_out_asf, p_header ); + + free( psz_asf ); + return VLC_SUCCESS; +} +/*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/ +static int b64_decode( char *dest, char *src ) +{ + const char *dest_start = dest; + int i_level; + int last = 0; + int b64[256] = { + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 00-0F */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 10-1F */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63, /* 20-2F */ + 52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1, /* 30-3F */ + -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14, /* 40-4F */ + 15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1, /* 50-5F */ + -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40, /* 60-6F */ + 41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1, /* 70-7F */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 80-8F */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 90-9F */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* A0-AF */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* B0-BF */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* C0-CF */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* D0-DF */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* E0-EF */ + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 /* F0-FF */ + }; + + for( i_level = 0; *src != '\0'; src++ ) + { + int c; + + c = b64[(unsigned int)*src]; + if( c == -1 ) + { + continue; + } + + switch( i_level ) + { + case 0: + i_level++; + break; + case 1: + *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 ); + i_level++; + break; + case 2: + *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f ); + i_level++; + break; + case 3: + *dest++ = ( ( last &0x03 ) << 6 ) | c; + i_level = 0; + } + last = c; + } + + *dest = '\0'; + + return dest - dest_start; }