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( "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     length_media_name = strlen( strrchr( p_sys->p_thread->url.psz_path, '/' ) ) - 1;
 133
 134     p_sys->p_thread->psz_application = strndup( p_sys->p_thread->url.psz_path + 1, length_path - length_media_name - 2 );
 135     p_sys->p_thread->psz_media = strdup( p_sys->p_thread->url.psz_path + ( length_path - length_media_name ) );
 136
 137     msg_Dbg( p_access, "rtmp: host='%s' port=%d path='%s'",
 138              p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port, p_sys->p_thread->url.psz_path );
 139
 140     if( p_sys->p_thread->url.psz_username && *p_sys->p_thread->url.psz_username )
 141     {
 142         msg_Dbg( p_access, "      user='%s', pwd='%s'",
 143                  p_sys->p_thread->url.psz_username, p_sys->p_thread->url.psz_password );
 144     }
 145
 146     /* Initialize thread variables */
 147     p_sys->p_thread->b_die = 0;
 148     p_sys->p_thread->b_error= 0;
 149     p_sys->p_thread->p_fifo_input = block_FifoNew();
 150     p_sys->p_thread->p_empty_blocks = block_FifoNew();
 151     p_sys->p_thread->has_audio = 0;
 152     p_sys->p_thread->has_video = 0;
 153     p_sys->p_thread->metadata_received = 0;
 154     p_sys->p_thread->first_media_packet = 1;
 155     p_sys->p_thread->flv_tag_previous_tag_size = 0x00000000; /* FLV_TAG_FIRST_PREVIOUS_TAG_SIZE */
 156
 157     p_sys->p_thread->flv_body = rtmp_body_new( -1 );
 158     p_sys->p_thread->flv_length_body = 0;
 159
 160     p_sys->p_thread->chunk_size_recv = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 161     p_sys->p_thread->chunk_size_send = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 162     for(i = 0; i < 64; i++)
 163     {
 164         memset( &p_sys->p_thread->rtmp_headers_recv[i], 0, sizeof( rtmp_packet_t ) );
 165         p_sys->p_thread->rtmp_headers_send[i].length_header = -1;
 166         p_sys->p_thread->rtmp_headers_send[i].stream_index = -1;
 167         p_sys->p_thread->rtmp_headers_send[i].timestamp = -1;
 168         p_sys->p_thread->rtmp_headers_send[i].timestamp_relative = -1;
 169         p_sys->p_thread->rtmp_headers_send[i].length_encoded = -1;
 170         p_sys->p_thread->rtmp_headers_send[i].length_body = -1;
 171         p_sys->p_thread->rtmp_headers_send[i].content_type = -1;
 172         p_sys->p_thread->rtmp_headers_send[i].src_dst = -1;
 173         p_sys->p_thread->rtmp_headers_send[i].body = NULL;
 174     }
 175
 176     vlc_cond_init( p_sys->p_thread, &p_sys->p_thread->wait );
 177     vlc_mutex_init( &p_sys->p_thread->lock );
 178
 179     p_sys->p_thread->result_connect = 1;
 180     /* p_sys->p_thread->result_publish = only used on access */
 181     p_sys->p_thread->result_play = 1;
 182     p_sys->p_thread->result_stop = 0;
 183     p_sys->p_thread->fd = -1;
 184
 185     /* Open connection */
 186     if( var_CreateGetBool( p_access, "rtmp-connect" ) > 0 )
 187     {
 188 #if 0
 189         p_sys->p_thread->fd = net_ConnectTCP( p_access,
 190                                               p_sys->p_thread->url.psz_host,
 191                                               p_sys->p_thread->url.i_port );
 192 #endif
 193         msg_Err( p_access, "to be implemented" );
 194         goto error2;
 195     }
 196     else
 197     {
 198         int *p_fd_listen;
 199
 200         p_sys->active = 0;
 201         p_fd_listen = net_ListenTCP( p_access, p_sys->p_thread->url.psz_host,
 202                                      p_sys->p_thread->url.i_port );
 203         if( p_fd_listen == NULL )
 204         {
 205             msg_Warn( p_access, "cannot listen to %s port %i",
 206                       p_sys->p_thread->url.psz_host,
 207                       p_sys->p_thread->url.i_port );
 208             goto error2;
 209         }
 210
 211         do
 212             p_sys->p_thread->fd = net_Accept( p_access, p_fd_listen, -1 );
 213         while( p_sys->p_thread->fd == -1 );
 214         net_ListenClose( p_fd_listen );
 215
 216         if( rtmp_handshake_passive( p_this, p_sys->p_thread->fd ) < 0 )
 217         {
 218             msg_Err( p_access, "handshake passive failed");
 219             goto error2;
 220         }
 221     }
 222
 223     if( vlc_thread_create( p_sys->p_thread, "rtmp control thread", ThreadControl,
 224                            VLC_THREAD_PRIORITY_INPUT, false ) )
 225     {
 226         msg_Err( p_access, "cannot spawn rtmp control thread" );
 227         goto error2;
 228     }
 229
 230     if( !p_sys->active )
 231     {
 232         if( rtmp_connect_passive( p_sys->p_thread ) < 0 )
 233         {
 234             msg_Err( p_access, "connect passive failed");
 235             goto error2;
 236         }
 237     }
 238
 239     p_access->pf_write = Write;
 240     p_access->pf_seek = Seek;
 241
 242     return VLC_SUCCESS;
 243
 244 error2:
 245     vlc_cond_destroy( &p_sys->p_thread->wait );
 246     vlc_mutex_destroy( &p_sys->p_thread->lock );
 247
 248     free( p_sys->p_thread->psz_application );
 249     free( p_sys->p_thread->psz_media );
 250
 251     if( p_sys->p_thread->fd != -1 )
 252         net_Close( p_sys->p_thread->fd );
 253 error:
 254     vlc_object_detach( p_sys->p_thread );
 255     vlc_object_release( p_sys->p_thread );
 256
 257     vlc_UrlClean( &p_sys->p_thread->url );
 258     free( p_sys );
 259
 260     return VLC_EGENERIC;
 261 }
 262
 263 /*****************************************************************************
 264  * Close: close the target
 265  *****************************************************************************/
 266 static void Close( vlc_object_t * p_this )
 267 {
 268     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
 269     sout_access_out_sys_t *p_sys = p_access->p_sys;
 270     int i;
 271
 272 //    p_sys->p_thread->b_die = true;
 273     vlc_object_kill( p_sys->p_thread );
 274     block_FifoWake( p_sys->p_thread->p_fifo_input );
 275     block_FifoWake( p_sys->p_thread->p_empty_blocks );
 276
 277     vlc_thread_join( p_sys->p_thread );
 278
 279     vlc_cond_destroy( &p_sys->p_thread->wait );
 280     vlc_mutex_destroy( &p_sys->p_thread->lock );
 281
 282     block_FifoRelease( p_sys->p_thread->p_fifo_input );
 283     block_FifoRelease( p_sys->p_thread->p_empty_blocks );
 284
 285     for( i = 0; i < 64; i++ ) /* RTMP_HEADER_STREAM_INDEX_MASK */
 286     {
 287         if( p_sys->p_thread->rtmp_headers_recv[i].body != NULL )
 288         {
 289             free( p_sys->p_thread->rtmp_headers_recv[i].body->body );
 290             free( p_sys->p_thread->rtmp_headers_recv[i].body );
 291         }
 292     }
 293
 294     net_Close( p_sys->p_thread->fd );
 295
 296     vlc_object_detach( p_sys->p_thread );
 297     vlc_object_release( p_sys->p_thread );
 298
 299     vlc_UrlClean( &p_sys->p_thread->url );
 300     free( p_sys->p_thread->psz_application );
 301     free( p_sys->p_thread->psz_media );
 302     free( p_sys );
 303 }
 304
 305 /*****************************************************************************
 306  * Write: standard write on a file descriptor.
 307  *****************************************************************************/
 308 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 309 {
 310     rtmp_packet_t *rtmp_packet;
 311     uint8_t *tmp_buffer;
 312     ssize_t i_ret;
 313     ssize_t i_write = 0;
 314
 315     if( p_access->p_sys->p_thread->first_media_packet )
 316     {
 317         /* 13 == FLV_HEADER_SIZE + PreviousTagSize*/
 318         memmove( p_buffer->p_buffer, p_buffer->p_buffer + 13, p_buffer->i_buffer - 13 );
 319         p_buffer = block_Realloc( p_buffer, 0, p_buffer->i_buffer - 13 );
 320
 321         p_access->p_sys->p_thread->first_media_packet = 0;
 322     }
 323
 324     while( p_buffer )
 325     {
 326         block_t *p_next = p_buffer->p_next;
 327 //////////////////////////////
 328 /*msg_Warn(p_access, "XXXXXXXXXXXXXXXXX");
 329 int i;
 330 for(i = 0; i < p_buffer->i_buffer; i += 16)
 331 {
 332     msg_Warn(p_access,"%.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x",
 333 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],
 334 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]);
 335 }*/
 336 ////////////////////////
 337         msg_Warn(p_access, "rtmp.c:360 i_dts %"PRIu64" i_pts %"PRIu64,
 338                  p_buffer->i_dts, p_buffer->i_pts);
 339         rtmp_packet = rtmp_build_flv_over_rtmp( p_access->p_sys->p_thread, p_buffer );
 340
 341         if( rtmp_packet )
 342         {
 343             tmp_buffer = rtmp_encode_packet( p_access->p_sys->p_thread, rtmp_packet );
 344
 345             i_ret = net_Write( p_access->p_sys->p_thread, p_access->p_sys->p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
 346             if( i_ret != rtmp_packet->length_encoded )
 347             {
 348                 free( rtmp_packet->body->body );
 349                 free( rtmp_packet->body );
 350                 free( rtmp_packet );
 351                 free( tmp_buffer );
 352                 msg_Err( p_access->p_sys->p_thread, "failed send flv packet" );
 353                 return -1;
 354             }
 355             free( rtmp_packet->body->body );
 356             free( rtmp_packet->body );
 357             free( rtmp_packet );
 358             free( tmp_buffer );
 359         }
 360
 361         i_write += p_buffer->i_buffer;
 362
 363         p_buffer = p_next;
 364     }
 365
 366     return i_write;
 367 }
 368
 369 /********************a*********************************************************
 370  * Seek: seek to a specific location in a file
 371  *****************************************************************************/
 372 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 373 {
 374     (void)i_pos;
 375     msg_Err( p_access, "RTMP sout access cannot seek" );
 376     return -1;
 377 }
 378
 379 /*****************************************************************************
 380  * ThreadControl: manage control messages and pipe media to Read
 381  *****************************************************************************/
 382 static void ThreadControl( vlc_object_t *p_this )
 383 {
 384     rtmp_control_thread_t *p_thread = (rtmp_control_thread_t *) p_this;
 385     rtmp_packet_t *rtmp_packet;
 386
 387     rtmp_init_handler( p_thread->rtmp_handler );
 388
 389     while( vlc_object_alive (p_thread) )
 390     {
 391         rtmp_packet = rtmp_read_net_packet( p_thread );
 392         if( rtmp_packet != NULL )
 393         {
 394             if( rtmp_packet->content_type < 0x01 /* RTMP_CONTENT_TYPE_CHUNK_SIZE */
 395                 || rtmp_packet->content_type > 0x14 ) /* RTMP_CONTENT_TYPE_INVOKE */
 396             {
 397                 free( rtmp_packet->body->body );
 398                 free( rtmp_packet->body );
 399                 free( rtmp_packet );
 400
 401                 msg_Warn( p_thread, "unknown content type received" );
 402             }
 403             else
 404                 p_thread->rtmp_handler[rtmp_packet->content_type]( p_thread, rtmp_packet );
 405         }
 406         else
 407         {
 408             /* Sometimes server close connection too soon */
 409             if( p_thread->result_connect )
 410             {
 411                 vlc_mutex_lock( &p_thread->lock );
 412                 vlc_cond_signal( &p_thread->wait );
 413                 vlc_mutex_unlock( &p_thread->lock );
 414             }
 415
 416             p_thread->b_die = 1;
 417         }
 418     }
 419 }