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/vlc.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 URL_TEXT N_( "Destination" )
  45 #define URL_LONGTEXT N_( \
  46     "This is the output URL that will be used." )
  47
  48 static int  Open ( vlc_object_t * );
  49 static void Close( vlc_object_t * );
  50
  51 #define SOUT_CFG_PREFIX "sout-rtmp-"
  52
  53 vlc_module_begin();
  54     set_description( N_("RTMP stream output") );
  55     set_shortname( N_("RTMP" ) );
  56     set_capability( "sout access", 50 );
  57     set_category( CAT_SOUT );
  58     set_subcategory( SUBCAT_SOUT_STREAM );
  59     add_shortcut( "rtmp" );
  60     set_callbacks( Open, Close );
  61 vlc_module_end();
  62
  63 /*****************************************************************************
  64  * Local prototypes
  65  *****************************************************************************/
  66 static const char *ppsz_sout_options[] = {
  67     NULL
  68 };
  69
  70 static ssize_t Write( sout_access_out_t *, block_t * );
  71 static int     Seek ( sout_access_out_t *, off_t  );
  72 static void ThreadControl( vlc_object_t * );
  73
  74 struct sout_access_out_sys_t
  75 {
  76     int active;
  77
  78     /* thread for filtering and handling control messages */
  79     rtmp_control_thread_t *p_thread;
  80 };
  81
  82 /*****************************************************************************
  83  * Open: open the rtmp connection
  84  *****************************************************************************/
  85 static int Open( vlc_object_t *p_this )
  86 {
  87     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
  88     sout_access_out_sys_t *p_sys;
  89     char *psz, *p;
  90     int length_path, length_media_name;
  91     int i;
  92
  93     config_ChainParse( p_access, SOUT_CFG_PREFIX, ppsz_sout_options, p_access->p_cfg );
  94
  95     if( !( p_sys = calloc ( 1, sizeof( sout_access_out_sys_t ) ) ) )
  96     {
  97         msg_Err( p_access, "not enough memory" );
  98         return VLC_ENOMEM;
  99     }
 100     p_access->p_sys = p_sys;
 101
 102     p_sys->p_thread =
 103         vlc_object_create( p_access, sizeof( rtmp_control_thread_t ) );
 104     if( !p_sys->p_thread )
 105     {
 106         msg_Err( p_access, "out of memory" );
 107         return VLC_ENOMEM;
 108     }
 109     vlc_object_attach( p_sys->p_thread, p_access );
 110
 111     /* Parse URI - remove spaces */
 112     p = psz = strdup( p_access->psz_path );
 113     while( ( p = strchr( p, ' ' ) ) != NULL )
 114         *p = '+';
 115     vlc_UrlParse( &p_sys->p_thread->url, psz, 0 );
 116     free( psz );
 117
 118     if( p_sys->p_thread->url.psz_host == NULL
 119         || *p_sys->p_thread->url.psz_host == '\0' )
 120     {
 121          msg_Warn( p_access, "invalid host" );
 122          goto error;
 123     }
 124
 125     if( p_sys->p_thread->url.i_port <= 0 )
 126         p_sys->p_thread->url.i_port = 1935;
 127
 128     if ( p_sys->p_thread->url.psz_path == NULL )
 129     {
 130         msg_Warn( p_access, "invalid path" );
 131         goto error;
 132     }
 133
 134     length_path = strlen( p_sys->p_thread->url.psz_path );
 135     length_media_name = strlen( strrchr( p_sys->p_thread->url.psz_path, '/' ) ) - 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, &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
 187     /* Open connection */
 188     p_sys->p_thread->fd = net_ConnectTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 189     if( p_sys->p_thread->fd == -1 )
 190     {
 191         int *p_fd_listen;
 192
 193         msg_Warn( p_access, "cannot connect to %s:%d", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 194         msg_Dbg( p_access, "switching to passive mode" );
 195
 196         p_sys->active = 0;
 197
 198         p_fd_listen = net_ListenTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 199         if( p_fd_listen == NULL )
 200         {
 201             msg_Warn( p_access, "cannot listen to %s port %i", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 202             goto error2;
 203         }
 204
 205         p_sys->p_thread->fd = net_Accept( p_access, p_fd_listen, -1 );
 206
 207         net_ListenClose( p_fd_listen );
 208
 209         if( rtmp_handshake_passive( p_this, p_sys->p_thread->fd ) < 0 )
 210         {
 211             msg_Err( p_access, "handshake passive failed");
 212             goto error2;
 213         }
 214     }
 215     else
 216     {
 217         msg_Err( p_access, "to be implemented" );
 218         goto error2;
 219     }
 220
 221     if( vlc_thread_create( p_sys->p_thread, "rtmp control thread", ThreadControl,
 222                            VLC_THREAD_PRIORITY_INPUT, false ) )
 223     {
 224         msg_Err( p_access, "cannot spawn rtmp control thread" );
 225         goto error2;
 226     }
 227
 228     if( !p_sys->active )
 229     {
 230         if( rtmp_connect_passive( p_sys->p_thread ) < 0 )
 231         {
 232             msg_Err( p_access, "connect passive failed");
 233             goto error2;
 234         }
 235     }
 236
 237     p_access->pf_write = Write;
 238     p_access->pf_seek = Seek;
 239
 240     return VLC_SUCCESS;
 241
 242 error2:
 243     vlc_cond_destroy( &p_sys->p_thread->wait );
 244     vlc_mutex_destroy( &p_sys->p_thread->lock );
 245
 246     free( p_sys->p_thread->psz_application );
 247     free( p_sys->p_thread->psz_media );
 248
 249     net_Close( p_sys->p_thread->fd );
 250 error:
 251     vlc_object_detach( p_sys->p_thread );
 252     vlc_object_release( p_sys->p_thread );
 253
 254     vlc_UrlClean( &p_sys->p_thread->url );
 255     free( p_sys );
 256
 257     return VLC_EGENERIC;
 258 }
 259
 260 /*****************************************************************************
 261  * Close: close the target
 262  *****************************************************************************/
 263 static void Close( vlc_object_t * p_this )
 264 {
 265     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
 266     sout_access_out_sys_t *p_sys = p_access->p_sys;
 267     int i;
 268
 269 //    p_sys->p_thread->b_die = true;
 270     vlc_object_kill( p_sys->p_thread );
 271     block_FifoWake( p_sys->p_thread->p_fifo_input );
 272     block_FifoWake( p_sys->p_thread->p_empty_blocks );
 273
 274     vlc_thread_join( p_sys->p_thread );
 275
 276     vlc_cond_destroy( &p_sys->p_thread->wait );
 277     vlc_mutex_destroy( &p_sys->p_thread->lock );
 278
 279     block_FifoRelease( p_sys->p_thread->p_fifo_input );
 280     block_FifoRelease( p_sys->p_thread->p_empty_blocks );
 281
 282     for( i = 0; i < 64; i++ ) /* RTMP_HEADER_STREAM_INDEX_MASK */
 283     {
 284         if( p_sys->p_thread->rtmp_headers_recv[i].body != NULL )
 285         {
 286             free( p_sys->p_thread->rtmp_headers_recv[i].body->body );
 287             free( p_sys->p_thread->rtmp_headers_recv[i].body );
 288         }
 289     }
 290
 291     net_Close( p_sys->p_thread->fd );
 292
 293     vlc_object_detach( p_sys->p_thread );
 294     vlc_object_release( p_sys->p_thread );
 295
 296     vlc_UrlClean( &p_sys->p_thread->url );
 297     free( p_sys->p_thread->psz_application );
 298     free( p_sys->p_thread->psz_media );
 299     free( p_sys );
 300 }
 301
 302 /*****************************************************************************
 303  * Write: standard write on a file descriptor.
 304  *****************************************************************************/
 305 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 306 {
 307     rtmp_packet_t *rtmp_packet;
 308     uint8_t *tmp_buffer;
 309     ssize_t i_ret;
 310     ssize_t i_write = 0;
 311
 312     if( p_access->p_sys->p_thread->first_media_packet )
 313     {
 314         /* 13 == FLV_HEADER_SIZE + PreviousTagSize*/
 315         memmove( p_buffer->p_buffer, p_buffer->p_buffer + 13, p_buffer->i_buffer - 13 );
 316         p_buffer = block_Realloc( p_buffer, 0, p_buffer->i_buffer - 13 );
 317
 318         p_access->p_sys->p_thread->first_media_packet = 0;
 319     }
 320
 321     while( p_buffer )
 322     {
 323         block_t *p_next = p_buffer->p_next;
 324 //////////////////////////////
 325 /*msg_Warn(p_access, "XXXXXXXXXXXXXXXXX");
 326 int i;
 327 for(i = 0; i < p_buffer->i_buffer; i += 16)
 328 {
 329     msg_Warn(p_access,"%.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x",
 330 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],
 331 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]);
 332 }*/
 333 ////////////////////////
 334 msg_Warn(p_access, "rtmp.c:360 i_dts %d i_pts %d", p_buffer->i_dts, p_buffer->i_pts);
 335         rtmp_packet = rtmp_build_flv_over_rtmp( p_access->p_sys->p_thread, p_buffer );
 336
 337         if( rtmp_packet )
 338         {
 339             tmp_buffer = rtmp_encode_packet( p_access->p_sys->p_thread, rtmp_packet );
 340
 341             i_ret = net_Write( p_access->p_sys->p_thread, p_access->p_sys->p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
 342             if( i_ret != rtmp_packet->length_encoded )
 343             {
 344                 free( rtmp_packet->body->body );
 345                 free( rtmp_packet->body );
 346                 free( rtmp_packet );
 347                 free( tmp_buffer );
 348                 msg_Err( p_access->p_sys->p_thread, "failed send flv packet" );
 349                 return -1;
 350             }
 351             free( rtmp_packet->body->body );
 352             free( rtmp_packet->body );
 353             free( rtmp_packet );
 354             free( tmp_buffer );
 355         }
 356
 357         i_write += p_buffer->i_buffer;
 358
 359         p_buffer = p_next;
 360     }
 361
 362     return i_write;
 363 }
 364
 365 /********************a*********************************************************
 366  * Seek: seek to a specific location in a file
 367  *****************************************************************************/
 368 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 369 {
 370     msg_Err( p_access, "RTMP sout access cannot seek" );
 371     return -1;
 372 }
 373
 374 /*****************************************************************************
 375  * ThreadControl: manage control messages and pipe media to Read
 376  *****************************************************************************/
 377 static void ThreadControl( vlc_object_t *p_this )
 378 {
 379     rtmp_control_thread_t *p_thread = (rtmp_control_thread_t *) p_this;
 380     rtmp_packet_t *rtmp_packet;
 381
 382     rtmp_init_handler( p_thread->rtmp_handler );
 383
 384     while( !p_thread->b_die )
 385     {
 386         rtmp_packet = rtmp_read_net_packet( p_thread );
 387         if( rtmp_packet != NULL )
 388         {
 389             if( rtmp_packet->content_type < 0x01 /* RTMP_CONTENT_TYPE_CHUNK_SIZE */
 390                 || rtmp_packet->content_type > 0x14 ) /* RTMP_CONTENT_TYPE_INVOKE */
 391             {
 392                 free( rtmp_packet->body->body );
 393                 free( rtmp_packet->body );
 394                 free( rtmp_packet );
 395
 396                 msg_Warn( p_thread, "unknown content type received" );
 397             }
 398             else
 399                 p_thread->rtmp_handler[rtmp_packet->content_type]( p_thread, rtmp_packet );
 400         }
 401         else
 402         {
 403             /* Sometimes server close connection too soon */
 404             if( p_thread->result_connect )
 405             {
 406                 vlc_mutex_lock( &p_thread->lock );
 407                 vlc_cond_signal( &p_thread->wait );
 408                 vlc_mutex_unlock( &p_thread->lock );
 409             }
 410
 411             p_thread->b_die = 1;
 412         }
 413     }
 414 }