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_sout.h>
  32
  33 #include <vlc_network.h> /* DOWN: #include <network.h> */
  34 #include <vlc_url.h>
  35 #include <vlc_block.h>
  36
  37 #include "../access/rtmp/rtmp_amf_flv.h"
  38
  39 /*****************************************************************************
  40  * Module descriptor
  41  *****************************************************************************/
  42
  43 #define URL_TEXT N_( "Destination" )
  44 #define URL_LONGTEXT N_( \
  45     "This is the output URL that will be used." )
  46
  47 static int  Open ( vlc_object_t * );
  48 static void Close( vlc_object_t * );
  49
  50 #define SOUT_CFG_PREFIX "sout-rtmp-"
  51
  52 vlc_module_begin();
  53     set_description( _("RTMP stream output") );
  54     set_shortname( _("RTMP" ) );
  55     set_capability( "sout access", 50 );
  56     set_category( CAT_SOUT );
  57     set_subcategory( SUBCAT_SOUT_STREAM );
  58     add_shortcut( "rtmp" );
  59     set_callbacks( Open, Close );
  60 vlc_module_end();
  61
  62 /*****************************************************************************
  63  * Local prototypes
  64  *****************************************************************************/
  65 static const char *ppsz_sout_options[] = {
  66     NULL
  67 };
  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     config_ChainParse( p_access, SOUT_CFG_PREFIX, ppsz_sout_options, p_access->p_cfg );
  93
  94     if( !( p_sys = calloc ( 1, sizeof( sout_access_out_sys_t ) ) ) )
  95     {
  96         msg_Err( p_access, "not enough memory" );
  97         return VLC_ENOMEM;
  98     }
  99     p_access->p_sys = p_sys;
 100
 101     p_sys->p_thread =
 102         vlc_object_create( p_access, sizeof( rtmp_control_thread_t ) );
 103     if( !p_sys->p_thread )
 104     {
 105         msg_Err( p_access, "out of memory" );
 106         return VLC_ENOMEM;
 107     }
 108     vlc_object_attach( p_sys->p_thread, p_access );
 109
 110     /* Parse URI - remove spaces */
 111     p = psz = strdup( p_access->psz_path );
 112     while( ( p = strchr( p, ' ' ) ) != NULL )
 113         *p = '+';
 114     vlc_UrlParse( &p_sys->p_thread->url, psz, 0 );
 115     free( psz );
 116
 117     if( p_sys->p_thread->url.psz_host == NULL
 118         || *p_sys->p_thread->url.psz_host == '\0' )
 119     {
 120          msg_Warn( p_access, "invalid host" );
 121          goto error;
 122     }
 123
 124     if( p_sys->p_thread->url.i_port <= 0 )
 125         p_sys->p_thread->url.i_port = 1935;
 126
 127     if ( p_sys->p_thread->url.psz_path == NULL )
 128     {
 129         msg_Warn( p_access, "invalid path" );
 130         goto error;
 131     }
 132
 133     length_path = strlen( p_sys->p_thread->url.psz_path );
 134     length_media_name = strlen( strrchr( p_sys->p_thread->url.psz_path, '/' ) ) - 1;
 135
 136     p_sys->p_thread->psz_application = strndup( p_sys->p_thread->url.psz_path + 1, length_path - length_media_name - 2 );
 137     p_sys->p_thread->psz_media = strdup( p_sys->p_thread->url.psz_path + ( length_path - length_media_name ) );
 138
 139     msg_Dbg( p_access, "rtmp: host='%s' port=%d path='%s'",
 140              p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port, p_sys->p_thread->url.psz_path );
 141
 142     if( p_sys->p_thread->url.psz_username && *p_sys->p_thread->url.psz_username )
 143     {
 144         msg_Dbg( p_access, "      user='%s', pwd='%s'",
 145                  p_sys->p_thread->url.psz_username, p_sys->p_thread->url.psz_password );
 146     }
 147
 148     /* Initialize thread variables */
 149     p_sys->p_thread->b_die = 0;
 150     p_sys->p_thread->b_error= 0;
 151     p_sys->p_thread->p_fifo_input = block_FifoNew();
 152     p_sys->p_thread->p_empty_blocks = block_FifoNew();
 153     p_sys->p_thread->has_audio = 0;
 154     p_sys->p_thread->has_video = 0;
 155     p_sys->p_thread->metadata_received = 0;
 156     p_sys->p_thread->first_media_packet = 1;
 157     p_sys->p_thread->flv_tag_previous_tag_size = 0x00000000; /* FLV_TAG_FIRST_PREVIOUS_TAG_SIZE */
 158
 159     p_sys->p_thread->flv_body = rtmp_body_new( -1 );
 160     p_sys->p_thread->flv_length_body = 0;
 161
 162     p_sys->p_thread->chunk_size_recv = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 163     p_sys->p_thread->chunk_size_send = 128; /* RTMP_DEFAULT_CHUNK_SIZE */
 164     for(i = 0; i < 64; i++)
 165     {
 166         memset( &p_sys->p_thread->rtmp_headers_recv[i], 0, sizeof( rtmp_packet_t ) );
 167         p_sys->p_thread->rtmp_headers_send[i].length_header = -1;
 168         p_sys->p_thread->rtmp_headers_send[i].stream_index = -1;
 169         p_sys->p_thread->rtmp_headers_send[i].timestamp = -1;
 170         p_sys->p_thread->rtmp_headers_send[i].timestamp_relative = -1;
 171         p_sys->p_thread->rtmp_headers_send[i].length_encoded = -1;
 172         p_sys->p_thread->rtmp_headers_send[i].length_body = -1;
 173         p_sys->p_thread->rtmp_headers_send[i].content_type = -1;
 174         p_sys->p_thread->rtmp_headers_send[i].src_dst = -1;
 175         p_sys->p_thread->rtmp_headers_send[i].body = NULL;
 176     }
 177
 178     vlc_cond_init( p_sys->p_thread, &p_sys->p_thread->wait );
 179     vlc_mutex_init( &p_sys->p_thread->lock );
 180
 181     p_sys->p_thread->result_connect = 1;
 182     /* p_sys->p_thread->result_publish = only used on access */
 183     p_sys->p_thread->result_play = 1;
 184     p_sys->p_thread->result_stop = 0;
 185
 186     /* Open connection */
 187     p_sys->p_thread->fd = net_ConnectTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 188     if( p_sys->p_thread->fd == -1 )
 189     {
 190         int *p_fd_listen;
 191
 192         msg_Warn( p_access, "cannot connect to %s:%d", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 193         msg_Dbg( p_access, "switching to passive mode" );
 194
 195         p_sys->active = 0;
 196
 197         p_fd_listen = net_ListenTCP( p_access, p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 198         if( p_fd_listen == NULL )
 199         {
 200             msg_Warn( p_access, "cannot listen to %s port %i", p_sys->p_thread->url.psz_host, p_sys->p_thread->url.i_port );
 201             goto error2;
 202         }
 203
 204         p_sys->p_thread->fd = net_Accept( p_access, p_fd_listen, -1 );
 205
 206         net_ListenClose( p_fd_listen );
 207
 208         if( rtmp_handshake_passive( p_this, p_sys->p_thread->fd ) < 0 )
 209         {
 210             msg_Err( p_access, "handshake passive failed");
 211             goto error2;
 212         }
 213     }
 214     else
 215     {
 216         msg_Err( p_access, "to be implemented" );
 217         goto error2;
 218     }
 219
 220     if( vlc_thread_create( p_sys->p_thread, "rtmp control thread", ThreadControl,
 221                            VLC_THREAD_PRIORITY_INPUT, false ) )
 222     {
 223         msg_Err( p_access, "cannot spawn rtmp control thread" );
 224         goto error2;
 225     }
 226
 227     if( !p_sys->active )
 228     {
 229         if( rtmp_connect_passive( p_sys->p_thread ) < 0 )
 230         {
 231             msg_Err( p_access, "connect passive failed");
 232             goto error2;
 233         }
 234     }
 235
 236     p_access->pf_write = Write;
 237     p_access->pf_seek = Seek;
 238
 239     return VLC_SUCCESS;
 240
 241 error2:
 242     vlc_cond_destroy( &p_sys->p_thread->wait );
 243     vlc_mutex_destroy( &p_sys->p_thread->lock );
 244
 245     free( p_sys->p_thread->psz_application );
 246     free( p_sys->p_thread->psz_media );
 247
 248     net_Close( p_sys->p_thread->fd );
 249 error:
 250     vlc_object_detach( p_sys->p_thread );
 251     vlc_object_release( p_sys->p_thread );
 252
 253     vlc_UrlClean( &p_sys->p_thread->url );
 254     free( p_sys );
 255
 256     return VLC_EGENERIC;
 257 }
 258
 259 /*****************************************************************************
 260  * Close: close the target
 261  *****************************************************************************/
 262 static void Close( vlc_object_t * p_this )
 263 {
 264     sout_access_out_t *p_access = (sout_access_out_t *) p_this;
 265     sout_access_out_sys_t *p_sys = p_access->p_sys;
 266     int i;
 267
 268 //    p_sys->p_thread->b_die = true;
 269     vlc_object_kill( p_sys->p_thread );
 270     block_FifoWake( p_sys->p_thread->p_fifo_input );
 271     block_FifoWake( p_sys->p_thread->p_empty_blocks );
 272
 273     vlc_thread_join( p_sys->p_thread );
 274
 275     vlc_cond_destroy( &p_sys->p_thread->wait );
 276     vlc_mutex_destroy( &p_sys->p_thread->lock );
 277
 278     block_FifoRelease( p_sys->p_thread->p_fifo_input );
 279     block_FifoRelease( p_sys->p_thread->p_empty_blocks );
 280
 281     for( i = 0; i < 64; i++ ) /* RTMP_HEADER_STREAM_INDEX_MASK */
 282     {
 283         if( p_sys->p_thread->rtmp_headers_recv[i].body != NULL )
 284         {
 285             free( p_sys->p_thread->rtmp_headers_recv[i].body->body );
 286             free( p_sys->p_thread->rtmp_headers_recv[i].body );
 287         }
 288     }
 289
 290     net_Close( p_sys->p_thread->fd );
 291
 292     vlc_object_detach( p_sys->p_thread );
 293     vlc_object_release( p_sys->p_thread );
 294
 295     vlc_UrlClean( &p_sys->p_thread->url );
 296     free( p_sys->p_thread->psz_application );
 297     free( p_sys->p_thread->psz_media );
 298     free( p_sys );
 299 }
 300
 301 /*****************************************************************************
 302  * Write: standard write on a file descriptor.
 303  *****************************************************************************/
 304 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 305 {
 306     rtmp_packet_t *rtmp_packet;
 307     uint8_t *tmp_buffer;
 308     ssize_t i_ret;
 309     ssize_t i_write = 0;
 310
 311     if( p_access->p_sys->p_thread->first_media_packet )
 312     {
 313         /* 13 == FLV_HEADER_SIZE + PreviousTagSize*/
 314         memmove( p_buffer->p_buffer, p_buffer->p_buffer + 13, p_buffer->i_buffer - 13 );
 315         p_buffer = block_Realloc( p_buffer, 0, p_buffer->i_buffer - 13 );
 316
 317         p_access->p_sys->p_thread->first_media_packet = 0;
 318     }
 319
 320     while( p_buffer )
 321     {
 322         block_t *p_next = p_buffer->p_next;
 323 //////////////////////////////
 324 /*msg_Warn(p_access, "XXXXXXXXXXXXXXXXX");
 325 int i;
 326 for(i = 0; i < p_buffer->i_buffer; i += 16)
 327 {
 328     msg_Warn(p_access,"%.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x %.2x%.2x",
 329 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],
 330 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]);
 331 }*/
 332 ////////////////////////
 333 msg_Warn(p_access, "rtmp.c:360 i_dts %d i_pts %d", p_buffer->i_dts, p_buffer->i_pts);
 334         rtmp_packet = rtmp_build_flv_over_rtmp( p_access->p_sys->p_thread, p_buffer );
 335
 336         if( rtmp_packet )
 337         {
 338             tmp_buffer = rtmp_encode_packet( p_access->p_sys->p_thread, rtmp_packet );
 339
 340             i_ret = net_Write( p_access->p_sys->p_thread, p_access->p_sys->p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
 341             if( i_ret != rtmp_packet->length_encoded )
 342             {
 343                 free( rtmp_packet->body->body );
 344                 free( rtmp_packet->body );
 345                 free( rtmp_packet );
 346                 free( tmp_buffer );
 347                 msg_Err( p_access->p_sys->p_thread, "failed send flv packet" );
 348                 return -1;
 349             }
 350             free( rtmp_packet->body->body );
 351             free( rtmp_packet->body );
 352             free( rtmp_packet );
 353             free( tmp_buffer );
 354         }
 355
 356         i_write += p_buffer->i_buffer;
 357
 358         p_buffer = p_next;
 359     }
 360
 361     return i_write;
 362 }
 363
 364 /********************a*********************************************************
 365  * Seek: seek to a specific location in a file
 366  *****************************************************************************/
 367 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 368 {
 369     msg_Err( p_access, "RTMP sout access cannot seek" );
 370     return -1;
 371 }
 372
 373 /*****************************************************************************
 374  * ThreadControl: manage control messages and pipe media to Read
 375  *****************************************************************************/
 376 static void ThreadControl( vlc_object_t *p_this )
 377 {
 378     rtmp_control_thread_t *p_thread = (rtmp_control_thread_t *) p_this;
 379     rtmp_packet_t *rtmp_packet;
 380
 381     rtmp_init_handler( p_thread->rtmp_handler );
 382
 383     while( !p_thread->b_die )
 384     {
 385         rtmp_packet = rtmp_read_net_packet( p_thread );
 386         if( rtmp_packet != NULL )
 387         {
 388             if( rtmp_packet->content_type < 0x01 /* RTMP_CONTENT_TYPE_CHUNK_SIZE */
 389                 || rtmp_packet->content_type > 0x14 ) /* RTMP_CONTENT_TYPE_INVOKE */
 390             {
 391                 free( rtmp_packet->body->body );
 392                 free( rtmp_packet->body );
 393                 free( rtmp_packet );
 394
 395                 msg_Warn( p_thread, "unknown content type received" );
 396             }
 397             else
 398                 p_thread->rtmp_handler[rtmp_packet->content_type]( p_thread, rtmp_packet );
 399         }
 400         else
 401         {
 402             /* Sometimes server close connection too soon */
 403             if( p_thread->result_connect )
 404             {
 405                 vlc_mutex_lock( &p_thread->lock );
 406                 vlc_cond_signal( &p_thread->wait );
 407                 vlc_mutex_unlock( &p_thread->lock );
 408             }
 409
 410             p_thread->b_die = 1;
 411         }
 412     }
 413 }