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 ssize_t Write( sout_access_out_t *, block_t * );
  67 static int     Seek ( sout_access_out_t *, off_t  );
  68 static void ThreadControl( vlc_object_t * );
  69
  70 struct sout_access_out_sys_t
  71 {
  72     int active;
  73
  74     /* thread for filtering and handling control messages */
  75     rtmp_control_thread_t *p_thread;
  76 };
  77
  78 /*****************************************************************************
  79  * Open: open the rtmp connection
  80  *****************************************************************************/
  81 static int Open( vlc_object_t *p_this )
  82 {
  83     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
  84     sout_access_out_sys_t *p_sys;
  85     char *psz, *p;
  86     int length_path, length_media_name;
  87     int i;
  88
  89     if( !( p_sys = calloc ( 1, sizeof( sout_access_out_sys_t ) ) ) )
  90     {
  91         msg_Err( p_access, "not enough memory" );
  92         return VLC_ENOMEM;
  93     }
  94     p_access->p_sys = p_sys;
  95
  96     p_sys->p_thread =
  97         vlc_object_create( p_access, sizeof( rtmp_control_thread_t ) );
  98     if( !p_sys->p_thread )
  99     {
 100         msg_Err( p_access, "out of memory" );
 101         return VLC_ENOMEM;
 102     }
 103     vlc_object_attach( p_sys->p_thread, p_access );
 104
 105     /* Parse URI - remove spaces */
 106     p = psz = strdup( p_access->psz_path );
 107     while( ( p = strchr( p, ' ' ) ) != NULL )
 108         *p = '+';
 109     vlc_UrlParse( &p_sys->p_thread->url, psz, 0 );
 110     free( psz );
 111
 112     if( p_sys->p_thread->url.psz_host == NULL
 113         || *p_sys->p_thread->url.psz_host == '\0' )
 114     {
 115          msg_Warn( p_access, "invalid host" );
 116          goto error;
 117     }
 118
 119     if( p_sys->p_thread->url.i_port <= 0 )
 120         p_sys->p_thread->url.i_port = 1935;
 121
 122     if ( p_sys->p_thread->url.psz_path == NULL )
 123     {
 124         msg_Warn( p_access, "invalid path" );
 125         goto error;
 126     }
 127
 128     length_path = strlen( p_sys->p_thread->url.psz_path );
 129     length_media_name = strlen( strrchr( p_sys->p_thread->url.psz_path, '/' ) ) - 1;
 130
 131     p_sys->p_thread->psz_application = strndup( p_sys->p_thread->url.psz_path + 1, length_path - length_media_name - 2 );
 132     p_sys->p_thread->psz_media = strdup( p_sys->p_thread->url.psz_path + ( length_path - length_media_name ) );
 133
 134     msg_Dbg( p_access, "rtmp: host='%s' port=%d path='%s'",
 135              p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port, p_sys->p_thread->url.psz_path );
 136
 137     if( p_sys->p_thread->url.psz_username && *p_sys->p_thread->url.psz_username )
 138     {
 139         msg_Dbg( p_access, "      user='%s', pwd='%s'",
 140                  p_sys->p_thread->url.psz_username, p_sys->p_thread->url.psz_password );
 141     }
 142
 143     /* Initialize thread variables */
 144     p_sys->p_thread->b_die = 0;
 145     p_sys->p_thread->b_error= 0;
 146     p_sys->p_thread->p_fifo_input = block_FifoNew();
 147     p_sys->p_thread->p_empty_blocks = block_FifoNew();
 148     p_sys->p_thread->has_audio = 0;
 149     p_sys->p_thread->has_video = 0;
 150     p_sys->p_thread->metadata_received = 0;
 151     p_sys->p_thread->first_media_packet = 1;
 152     p_sys->p_thread->flv_tag_previous_tag_size = 0x00000000; /* FLV_TAG_FIRST_PREVIOUS_TAG_SIZE */
 153
 154     p_sys->p_thread->flv_body = rtmp_body_new( -1 );
 155     p_sys->p_thread->flv_length_body = 0;
 156
 157     p_sys->p_thread->chunk_size_recv = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 158     p_sys->p_thread->chunk_size_send = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 159     for(i = 0; i < 64; i++)
 160     {
 161         memset( &p_sys->p_thread->rtmp_headers_recv[i], 0, sizeof( rtmp_packet_t ) );
 162         p_sys->p_thread->rtmp_headers_send[i].length_header = -1;
 163         p_sys->p_thread->rtmp_headers_send[i].stream_index = -1;
 164         p_sys->p_thread->rtmp_headers_send[i].timestamp = -1;
 165         p_sys->p_thread->rtmp_headers_send[i].timestamp_relative = -1;
 166         p_sys->p_thread->rtmp_headers_send[i].length_encoded = -1;
 167         p_sys->p_thread->rtmp_headers_send[i].length_body = -1;
 168         p_sys->p_thread->rtmp_headers_send[i].content_type = -1;
 169         p_sys->p_thread->rtmp_headers_send[i].src_dst = -1;
 170         p_sys->p_thread->rtmp_headers_send[i].body = NULL;
 171     }
 172
 173     vlc_cond_init( p_sys->p_thread, &p_sys->p_thread->wait );
 174     vlc_mutex_init( &p_sys->p_thread->lock );
 175
 176     p_sys->p_thread->result_connect = 1;
 177     /* p_sys->p_thread->result_publish = only used on access */
 178     p_sys->p_thread->result_play = 1;
 179     p_sys->p_thread->result_stop = 0;
 180
 181     /* Open connection */
 182     p_sys->p_thread->fd = net_ConnectTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 183     if( p_sys->p_thread->fd == -1 )
 184     {
 185         int *p_fd_listen;
 186
 187         msg_Warn( p_access, "cannot connect to %s:%d", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 188         msg_Dbg( p_access, "switching to passive mode" );
 189
 190         p_sys->active = 0;
 191
 192         p_fd_listen = net_ListenTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 193         if( p_fd_listen == NULL )
 194         {
 195             msg_Warn( p_access, "cannot listen to %s port %i", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 196             goto error2;
 197         }
 198
 199         p_sys->p_thread->fd = net_Accept( p_access, p_fd_listen, -1 );
 200
 201         net_ListenClose( p_fd_listen );
 202
 203         if( rtmp_handshake_passive( p_this, p_sys->p_thread->fd ) < 0 )
 204         {
 205             msg_Err( p_access, "handshake passive failed");
 206             goto error2;
 207         }
 208     }
 209     else
 210     {
 211         msg_Err( p_access, "to be implemented" );
 212         goto error2;
 213     }
 214
 215     if( vlc_thread_create( p_sys->p_thread, "rtmp control thread", ThreadControl,
 216                            VLC_THREAD_PRIORITY_INPUT, false ) )
 217     {
 218         msg_Err( p_access, "cannot spawn rtmp control thread" );
 219         goto error2;
 220     }
 221
 222     if( !p_sys->active )
 223     {
 224         if( rtmp_connect_passive( p_sys->p_thread ) < 0 )
 225         {
 226             msg_Err( p_access, "connect passive failed");
 227             goto error2;
 228         }
 229     }
 230
 231     p_access->pf_write = Write;
 232     p_access->pf_seek = Seek;
 233
 234     return VLC_SUCCESS;
 235
 236 error2:
 237     vlc_cond_destroy( &p_sys->p_thread->wait );
 238     vlc_mutex_destroy( &p_sys->p_thread->lock );
 239
 240     free( p_sys->p_thread->psz_application );
 241     free( p_sys->p_thread->psz_media );
 242
 243     net_Close( p_sys->p_thread->fd );
 244 error:
 245     vlc_object_detach( p_sys->p_thread );
 246     vlc_object_release( p_sys->p_thread );
 247
 248     vlc_UrlClean( &p_sys->p_thread->url );
 249     free( p_sys );
 250
 251     return VLC_EGENERIC;
 252 }
 253
 254 /*****************************************************************************
 255  * Close: close the target
 256  *****************************************************************************/
 257 static void Close( vlc_object_t * p_this )
 258 {
 259     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
 260     sout_access_out_sys_t *p_sys = p_access->p_sys;
 261     int i;
 262
 263 //    p_sys->p_thread->b_die = true;
 264     vlc_object_kill( p_sys->p_thread );
 265     block_FifoWake( p_sys->p_thread->p_fifo_input );
 266     block_FifoWake( p_sys->p_thread->p_empty_blocks );
 267
 268     vlc_thread_join( p_sys->p_thread );
 269
 270     vlc_cond_destroy( &p_sys->p_thread->wait );
 271     vlc_mutex_destroy( &p_sys->p_thread->lock );
 272
 273     block_FifoRelease( p_sys->p_thread->p_fifo_input );
 274     block_FifoRelease( p_sys->p_thread->p_empty_blocks );
 275
 276     for( i = 0; i < 64; i++ ) /* RTMP_HEADER_STREAM_INDEX_MASK */
 277     {
 278         if( p_sys->p_thread->rtmp_headers_recv[i].body != NULL )
 279         {
 280             free( p_sys->p_thread->rtmp_headers_recv[i].body->body );
 281             free( p_sys->p_thread->rtmp_headers_recv[i].body );
 282         }
 283     }
 284
 285     net_Close( p_sys->p_thread->fd );
 286
 287     vlc_object_detach( p_sys->p_thread );
 288     vlc_object_release( p_sys->p_thread );
 289
 290     vlc_UrlClean( &p_sys->p_thread->url );
 291     free( p_sys->p_thread->psz_application );
 292     free( p_sys->p_thread->psz_media );
 293     free( p_sys );
 294 }
 295
 296 /*****************************************************************************
 297  * Write: standard write on a file descriptor.
 298  *****************************************************************************/
 299 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 300 {
 301     rtmp_packet_t *rtmp_packet;
 302     uint8_t *tmp_buffer;
 303     ssize_t i_ret;
 304     ssize_t i_write = 0;
 305
 306     if( p_access->p_sys->p_thread->first_media_packet )
 307     {
 308         /* 13 == FLV_HEADER_SIZE + PreviousTagSize*/
 309         memmove( p_buffer->p_buffer, p_buffer->p_buffer + 13, p_buffer->i_buffer - 13 );
 310         p_buffer = block_Realloc( p_buffer, 0, p_buffer->i_buffer - 13 );
 311
 312         p_access->p_sys->p_thread->first_media_packet = 0;
 313     }
 314
 315     while( p_buffer )
 316     {
 317         block_t *p_next = p_buffer->p_next;
 318 //////////////////////////////
 319 /*msg_Warn(p_access, "XXXXXXXXXXXXXXXXX");
 320 int i;
 321 for(i = 0; i < p_buffer->i_buffer; i += 16)
 322 {
 323     msg_Warn(p_access,"%.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x",
 324 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],
 325 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]);
 326 }*/
 327 ////////////////////////
 328 msg_Warn(p_access, "rtmp.c:360 i_dts %d i_pts %d", p_buffer->i_dts, p_buffer->i_pts);
 329         rtmp_packet = rtmp_build_flv_over_rtmp( p_access->p_sys->p_thread, p_buffer );
 330
 331         if( rtmp_packet )
 332         {
 333             tmp_buffer = rtmp_encode_packet( p_access->p_sys->p_thread, rtmp_packet );
 334
 335             i_ret = net_Write( p_access->p_sys->p_thread, p_access->p_sys->p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
 336             if( i_ret != rtmp_packet->length_encoded )
 337             {
 338                 free( rtmp_packet->body->body );
 339                 free( rtmp_packet->body );
 340                 free( rtmp_packet );
 341                 free( tmp_buffer );
 342                 msg_Err( p_access->p_sys->p_thread, "failed send flv packet" );
 343                 return -1;
 344             }
 345             free( rtmp_packet->body->body );
 346             free( rtmp_packet->body );
 347             free( rtmp_packet );
 348             free( tmp_buffer );
 349         }
 350
 351         i_write += p_buffer->i_buffer;
 352
 353         p_buffer = p_next;
 354     }
 355
 356     return i_write;
 357 }
 358
 359 /********************a*********************************************************
 360  * Seek: seek to a specific location in a file
 361  *****************************************************************************/
 362 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 363 {
 364     msg_Err( p_access, "RTMP sout access cannot seek" );
 365     return -1;
 366 }
 367
 368 /*****************************************************************************
 369  * ThreadControl: manage control messages and pipe media to Read
 370  *****************************************************************************/
 371 static void ThreadControl( vlc_object_t *p_this )
 372 {
 373     rtmp_control_thread_t *p_thread = (rtmp_control_thread_t *) p_this;
 374     rtmp_packet_t *rtmp_packet;
 375
 376     rtmp_init_handler( p_thread->rtmp_handler );
 377
 378     while( !p_thread->b_die )
 379     {
 380         rtmp_packet = rtmp_read_net_packet( p_thread );
 381         if( rtmp_packet != NULL )
 382         {
 383             if( rtmp_packet->content_type < 0x01 /* RTMP_CONTENT_TYPE_CHUNK_SIZE */
 384                 || rtmp_packet->content_type > 0x14 ) /* RTMP_CONTENT_TYPE_INVOKE */
 385             {
 386                 free( rtmp_packet->body->body );
 387                 free( rtmp_packet->body );
 388                 free( rtmp_packet );
 389
 390                 msg_Warn( p_thread, "unknown content type received" );
 391             }
 392             else
 393                 p_thread->rtmp_handler[rtmp_packet->content_type]( p_thread, rtmp_packet );
 394         }
 395         else
 396         {
 397             /* Sometimes server close connection too soon */
 398             if( p_thread->result_connect )
 399             {
 400                 vlc_mutex_lock( &p_thread->lock );
 401                 vlc_cond_signal( &p_thread->wait );
 402                 vlc_mutex_unlock( &p_thread->lock );
 403             }
 404
 405             p_thread->b_die = 1;
 406         }
 407     }
 408 }