git.sesse.net Git - vlc/blob - modules/access_output/rtmp.c

   1 /*****************************************************************************
   2  * rtmp.c: RTMP output.
   3  *****************************************************************************
   4  * Copyright (C) URJC - LADyR - Luis Lopez Fernandez
   5  *
   6  * Author: Miguel Angel Cabrera Moya
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <vlc_common.h>
  31 #include <vlc_plugin.h>
  32 #include <vlc_sout.h>
  33
  34 #include <vlc_network.h> /* DOWN: #include <network.h> */
  35 #include <vlc_url.h>
  36 #include <vlc_block.h>
  37
  38 #include "../access/rtmp/rtmp_amf_flv.h"
  39
  40 /*****************************************************************************
  41  * Module descriptor
  42  *****************************************************************************/
  43
  44 #define RTMP_CONNECT_TEXT N_( "Active TCP connection" )
  45 #define RTMP_CONNECT_LONGTEXT N_( \
  46     "If enabled, VLC will connect to a remote destination instead of " \
  47     "waiting for an incoming connection." )
  48
  49 static int  Open ( vlc_object_t * );
  50 static void Close( vlc_object_t * );
  51
  52 #define SOUT_CFG_PREFIX "sout-rtmp-"
  53
  54 vlc_module_begin();
  55     set_description( N_("RTMP stream output") );
  56     set_shortname( N_("RTMP" ) );
  57     set_capability( "sout access", 50 );
  58     set_category( CAT_SOUT );
  59     set_subcategory( SUBCAT_SOUT_STREAM );
  60     add_shortcut( "rtmp" );
  61     set_callbacks( Open, Close );
  62     add_bool( "rtmp-connect", false, NULL, RTMP_CONNECT_TEXT,
  63               RTMP_CONNECT_LONGTEXT, false );
  64 vlc_module_end();
  65
  66 /*****************************************************************************
  67  * Local prototypes
  68  *****************************************************************************/
  69 static ssize_t Write( sout_access_out_t *, block_t * );
  70 static int     Seek ( sout_access_out_t *, off_t  );
  71 static void* ThreadControl( vlc_object_t * );
  72
  73 struct sout_access_out_sys_t
  74 {
  75     int active;
  76
  77     /* thread for filtering and handling control messages */
  78     rtmp_control_thread_t *p_thread;
  79 };
  80
  81 /*****************************************************************************
  82  * Open: open the rtmp connection
  83  *****************************************************************************/
  84 static int Open( vlc_object_t *p_this )
  85 {
  86     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
  87     sout_access_out_sys_t *p_sys;
  88     char *psz, *p;
  89     int length_path, length_media_name;
  90     int i;
  91
  92     if( !( p_sys = calloc ( 1, sizeof( sout_access_out_sys_t ) ) ) )
  93     {
  94         msg_Err( p_access, "not enough memory" );
  95         return VLC_ENOMEM;
  96     }
  97     p_access->p_sys = p_sys;
  98
  99     p_sys->p_thread =
 100         vlc_object_create( p_access, sizeof( rtmp_control_thread_t ) );
 101     if( !p_sys->p_thread )
 102     {
 103         msg_Err( p_access, "out of memory" );
 104         return VLC_ENOMEM;
 105     }
 106     vlc_object_attach( p_sys->p_thread, p_access );
 107
 108     /* Parse URI - remove spaces */
 109     p = psz = strdup( p_access->psz_path );
 110     while( ( p = strchr( p, ' ' ) ) != NULL )
 111         *p = '+';
 112     vlc_UrlParse( &p_sys->p_thread->url, psz, 0 );
 113     free( psz );
 114
 115     if( p_sys->p_thread->url.psz_host == NULL
 116         || *p_sys->p_thread->url.psz_host == '\0' )
 117     {
 118          msg_Warn( p_access, "invalid host" );
 119          goto error;
 120     }
 121
 122     if( p_sys->p_thread->url.i_port <= 0 )
 123         p_sys->p_thread->url.i_port = 1935;
 124
 125     if ( p_sys->p_thread->url.psz_path == NULL )
 126     {
 127         msg_Warn( p_access, "invalid path" );
 128         goto error;
 129     }
 130
 131     length_path = strlen( p_sys->p_thread->url.psz_path );
 132     char* psz_tmp = strrchr( p_sys->p_thread->url.psz_path, '/' );
 133     if( !psz_tmp )
 134         goto error;
 135     length_media_name = strlen( psz_tmp ) - 1;
 136
 137     p_sys->p_thread->psz_application = strndup( p_sys->p_thread->url.psz_path + 1, length_path - length_media_name - 2 );
 138     p_sys->p_thread->psz_media = strdup( p_sys->p_thread->url.psz_path + ( length_path - length_media_name ) );
 139
 140     msg_Dbg( p_access, "rtmp: host='%s' port=%d path='%s'",
 141              p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port, p_sys->p_thread->url.psz_path );
 142
 143     if( p_sys->p_thread->url.psz_username && *p_sys->p_thread->url.psz_username )
 144     {
 145         msg_Dbg( p_access, "      user='%s', pwd='%s'",
 146                  p_sys->p_thread->url.psz_username, p_sys->p_thread->url.psz_password );
 147     }
 148
 149     /* Initialize thread variables */
 150     p_sys->p_thread->b_die = 0;
 151     p_sys->p_thread->b_error= 0;
 152     p_sys->p_thread->p_fifo_input = block_FifoNew();
 153     p_sys->p_thread->p_empty_blocks = block_FifoNew();
 154     p_sys->p_thread->has_audio = 0;
 155     p_sys->p_thread->has_video = 0;
 156     p_sys->p_thread->metadata_received = 0;
 157     p_sys->p_thread->first_media_packet = 1;
 158     p_sys->p_thread->flv_tag_previous_tag_size = 0x00000000; /* FLV_TAG_FIRST_PREVIOUS_TAG_SIZE */
 159
 160     p_sys->p_thread->flv_body = rtmp_body_new( -1 );
 161     p_sys->p_thread->flv_length_body = 0;
 162
 163     p_sys->p_thread->chunk_size_recv = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 164     p_sys->p_thread->chunk_size_send = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 165     for(i = 0; i < 64; i++)
 166     {
 167         memset( &p_sys->p_thread->rtmp_headers_recv[i], 0, sizeof( rtmp_packet_t ) );
 168         p_sys->p_thread->rtmp_headers_send[i].length_header = -1;
 169         p_sys->p_thread->rtmp_headers_send[i].stream_index = -1;
 170         p_sys->p_thread->rtmp_headers_send[i].timestamp = -1;
 171         p_sys->p_thread->rtmp_headers_send[i].timestamp_relative = -1;
 172         p_sys->p_thread->rtmp_headers_send[i].length_encoded = -1;
 173         p_sys->p_thread->rtmp_headers_send[i].length_body = -1;
 174         p_sys->p_thread->rtmp_headers_send[i].content_type = -1;
 175         p_sys->p_thread->rtmp_headers_send[i].src_dst = -1;
 176         p_sys->p_thread->rtmp_headers_send[i].body = NULL;
 177     }
 178
 179     vlc_cond_init( &p_sys->p_thread->wait );
 180     vlc_mutex_init( &p_sys->p_thread->lock );
 181
 182     p_sys->p_thread->result_connect = 1;
 183     /* p_sys->p_thread->result_publish = only used on access */
 184     p_sys->p_thread->result_play = 1;
 185     p_sys->p_thread->result_stop = 0;
 186     p_sys->p_thread->fd = -1;
 187
 188     /* Open connection */
 189     if( var_CreateGetBool( p_access, "rtmp-connect" ) > 0 )
 190     {
 191 #if 0
 192         p_sys->p_thread->fd = net_ConnectTCP( p_access,
 193                                               p_sys->p_thread->url.psz_host,
 194                                               p_sys->p_thread->url.i_port );
 195 #endif
 196         msg_Err( p_access, "to be implemented" );
 197         goto error2;
 198     }
 199     else
 200     {
 201         int *p_fd_listen;
 202
 203         p_sys->active = 0;
 204         p_fd_listen = net_ListenTCP( p_access, p_sys->p_thread->url.psz_host,
 205                                      p_sys->p_thread->url.i_port );
 206         if( p_fd_listen == NULL )
 207         {
 208             msg_Warn( p_access, "cannot listen to %s port %i",
 209                       p_sys->p_thread->url.psz_host,
 210                       p_sys->p_thread->url.i_port );
 211             goto error2;
 212         }
 213
 214         do
 215             p_sys->p_thread->fd = net_Accept( p_access, p_fd_listen, -1 );
 216         while( p_sys->p_thread->fd == -1 );
 217         net_ListenClose( p_fd_listen );
 218
 219         if( rtmp_handshake_passive( p_this, p_sys->p_thread->fd ) < 0 )
 220         {
 221             msg_Err( p_access, "handshake passive failed");
 222             goto error2;
 223         }
 224     }
 225
 226     if( vlc_thread_create( p_sys->p_thread, "rtmp control thread", ThreadControl,
 227                            VLC_THREAD_PRIORITY_INPUT, false ) )
 228     {
 229         msg_Err( p_access, "cannot spawn rtmp control thread" );
 230         goto error2;
 231     }
 232
 233     if( !p_sys->active )
 234     {
 235         if( rtmp_connect_passive( p_sys->p_thread ) < 0 )
 236         {
 237             msg_Err( p_access, "connect passive failed");
 238             goto error2;
 239         }
 240     }
 241
 242     p_access->pf_write = Write;
 243     p_access->pf_seek = Seek;
 244
 245     return VLC_SUCCESS;
 246
 247 error2:
 248     vlc_cond_destroy( &p_sys->p_thread->wait );
 249     vlc_mutex_destroy( &p_sys->p_thread->lock );
 250
 251     free( p_sys->p_thread->psz_application );
 252     free( p_sys->p_thread->psz_media );
 253
 254     if( p_sys->p_thread->fd != -1 )
 255         net_Close( p_sys->p_thread->fd );
 256 error:
 257     vlc_object_detach( p_sys->p_thread );
 258     vlc_object_release( p_sys->p_thread );
 259
 260     vlc_UrlClean( &p_sys->p_thread->url );
 261     free( p_sys );
 262
 263     return VLC_EGENERIC;
 264 }
 265
 266 /*****************************************************************************
 267  * Close: close the target
 268  *****************************************************************************/
 269 static void Close( vlc_object_t * p_this )
 270 {
 271     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
 272     sout_access_out_sys_t *p_sys = p_access->p_sys;
 273     int i;
 274
 275 //    p_sys->p_thread->b_die = true;
 276     vlc_object_kill( p_sys->p_thread );
 277     block_FifoWake( p_sys->p_thread->p_fifo_input );
 278
 279     vlc_thread_join( p_sys->p_thread );
 280
 281     vlc_cond_destroy( &p_sys->p_thread->wait );
 282     vlc_mutex_destroy( &p_sys->p_thread->lock );
 283
 284     block_FifoRelease( p_sys->p_thread->p_fifo_input );
 285     block_FifoRelease( p_sys->p_thread->p_empty_blocks );
 286
 287     for( i = 0; i < 64; i++ ) /* RTMP_HEADER_STREAM_INDEX_MASK */
 288     {
 289         if( p_sys->p_thread->rtmp_headers_recv[i].body != NULL )
 290         {
 291             free( p_sys->p_thread->rtmp_headers_recv[i].body->body );
 292             free( p_sys->p_thread->rtmp_headers_recv[i].body );
 293         }
 294     }
 295
 296     net_Close( p_sys->p_thread->fd );
 297
 298     vlc_object_detach( p_sys->p_thread );
 299     vlc_object_release( p_sys->p_thread );
 300
 301     vlc_UrlClean( &p_sys->p_thread->url );
 302     free( p_sys->p_thread->psz_application );
 303     free( p_sys->p_thread->psz_media );
 304     free( p_sys );
 305 }
 306
 307 /*****************************************************************************
 308  * Write: standard write on a file descriptor.
 309  *****************************************************************************/
 310 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 311 {
 312     rtmp_packet_t *rtmp_packet;
 313     uint8_t *tmp_buffer;
 314     ssize_t i_ret;
 315     ssize_t i_write = 0;
 316
 317     if( p_access->p_sys->p_thread->first_media_packet )
 318     {
 319         /* 13 == FLV_HEADER_SIZE + PreviousTagSize*/
 320         memmove( p_buffer->p_buffer, p_buffer->p_buffer + 13, p_buffer->i_buffer - 13 );
 321         p_buffer = block_Realloc( p_buffer, 0, p_buffer->i_buffer - 13 );
 322
 323         p_access->p_sys->p_thread->first_media_packet = 0;
 324     }
 325
 326     while( p_buffer )
 327     {
 328         block_t *p_next = p_buffer->p_next;
 329 //////////////////////////////
 330 /*msg_Warn(p_access, "XXXXXXXXXXXXXXXXX");
 331 int i;
 332 for(i = 0; i < p_buffer->i_buffer; i += 16)
 333 {
 334     msg_Warn(p_access,"%.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x",
 335 p_buffer->p_buffer[i], p_buffer->p_buffer[i+1], p_buffer->p_buffer[i+2], p_buffer->p_buffer[i+3], p_buffer->p_buffer[i+4], p_buffer->p_buffer[i+5], p_buffer->p_buffer[i+6], p_buffer->p_buffer[i+7],
 336 p_buffer->p_buffer[i+8], p_buffer->p_buffer[i+9], p_buffer->p_buffer[i+10], p_buffer->p_buffer[i+11], p_buffer->p_buffer[i+12], p_buffer->p_buffer[i+13], p_buffer->p_buffer[i+14], p_buffer->p_buffer[i+15]);
 337 }*/
 338 ////////////////////////
 339         msg_Warn(p_access, "rtmp.c:360 i_dts %"PRIu64" i_pts %"PRIu64,
 340                  p_buffer->i_dts, p_buffer->i_pts);
 341         rtmp_packet = rtmp_build_flv_over_rtmp( p_access->p_sys->p_thread, p_buffer );
 342
 343         if( rtmp_packet )
 344         {
 345             tmp_buffer = rtmp_encode_packet( p_access->p_sys->p_thread, rtmp_packet );
 346
 347             i_ret = net_Write( p_access->p_sys->p_thread, p_access->p_sys->p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
 348             if( i_ret != rtmp_packet->length_encoded )
 349             {
 350                 free( rtmp_packet->body->body );
 351                 free( rtmp_packet->body );
 352                 free( rtmp_packet );
 353                 free( tmp_buffer );
 354                 msg_Err( p_access->p_sys->p_thread, "failed send flv packet" );
 355                 return -1;
 356             }
 357             free( rtmp_packet->body->body );
 358             free( rtmp_packet->body );
 359             free( rtmp_packet );
 360             free( tmp_buffer );
 361         }
 362
 363         i_write += p_buffer->i_buffer;
 364
 365         p_buffer = p_next;
 366     }
 367
 368     return i_write;
 369 }
 370
 371 /********************a*********************************************************
 372  * Seek: seek to a specific location in a file
 373  *****************************************************************************/
 374 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 375 {
 376     (void)i_pos;
 377     msg_Err( p_access, "RTMP sout access cannot seek" );
 378     return -1;
 379 }
 380
 381 /*****************************************************************************
 382  * ThreadControl: manage control messages and pipe media to Read
 383  *****************************************************************************/
 384 static void* ThreadControl( vlc_object_t *p_this )
 385 {
 386     rtmp_control_thread_t *p_thread = (rtmp_control_thread_t *) p_this;
 387     rtmp_packet_t *rtmp_packet;
 388     int canc = vlc_savecancel ();
 389
 390     rtmp_init_handler( p_thread->rtmp_handler );
 391
 392     while( vlc_object_alive (p_thread) )
 393     {
 394         rtmp_packet = rtmp_read_net_packet( p_thread );
 395         if( rtmp_packet != NULL )
 396         {
 397             if( rtmp_packet->content_type < 0x01 /* RTMP_CONTENT_TYPE_CHUNK_SIZE */
 398                 || rtmp_packet->content_type > 0x14 ) /* RTMP_CONTENT_TYPE_INVOKE */
 399             {
 400                 free( rtmp_packet->body->body );
 401                 free( rtmp_packet->body );
 402                 free( rtmp_packet );
 403
 404                 msg_Warn( p_thread, "unknown content type received" );
 405             }
 406             else
 407                 p_thread->rtmp_handler[rtmp_packet->content_type]( p_thread, rtmp_packet );
 408         }
 409         else
 410         {
 411             /* Sometimes server close connection too soon */
 412             if( p_thread->result_connect )
 413             {
 414                 vlc_mutex_lock( &p_thread->lock );
 415                 vlc_cond_signal( &p_thread->wait );
 416                 vlc_mutex_unlock( &p_thread->lock );
 417             }
 418
 419             p_thread->b_die = 1;
 420         }
 421     }
 422     vlc_restorecancel (canc);
 423     return NULL;
 424 }