/*****************************************************************************
* rtmp_amf_flv.c: RTMP, AMF and FLV over RTMP implementation.
*****************************************************************************
* Copyright (C) URJC - LADyR - Luis Lopez Fernandez
*
* Author: Miguel Angel Cabrera Moya
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* RTMP header:
******************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "vlc_common.h"
#include "vlc_access.h"
#include "vlc_network.h" /* DOWN: #include <network.h> */
#include "vlc_url.h"
#include "vlc_block.h"
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "rtmp_amf_flv.h"
/* header length (including itself) */
const uint8_t RTMP_HEADER_SIZE_MASK = 0xC0;
const uint8_t RTMP_HEADER_SIZE_12 = 0x00;
const uint8_t RTMP_HEADER_SIZE_8 = 0x40;
const uint8_t RTMP_HEADER_SIZE_4 = 0x80;
const uint8_t RTMP_HEADER_SIZE_1 = 0xC0;
/* streams */
const uint8_t RTMP_HEADER_STREAM_MAX = 64;
const uint8_t RTMP_HEADER_STREAM_INDEX_MASK = 0x3F;
/* handshake */
const uint8_t RTMP_HANDSHAKE = 0x03;
const uint16_t RTMP_HANDSHAKE_BODY_SIZE = 1536;
/* content types */
const uint8_t RTMP_CONTENT_TYPE_CHUNK_SIZE = 0x01;
const uint8_t RTMP_CONTENT_TYPE_UNKNOWN_02 = 0x02;
const uint8_t RTMP_CONTENT_TYPE_BYTES_READ = 0x03;
const uint8_t RTMP_CONTENT_TYPE_PING = 0x04;
const uint8_t RTMP_CONTENT_TYPE_SERVER_BW = 0x05;
const uint8_t RTMP_CONTENT_TYPE_CLIENT_BW = 0x06;
const uint8_t RTMP_CONTENT_TYPE_UNKNOWN_07 = 0x07;
const uint8_t RTMP_CONTENT_TYPE_AUDIO_DATA = 0x08;
const uint8_t RTMP_CONTENT_TYPE_VIDEO_DATA = 0x09;
const uint8_t RTMP_CONTENT_TYPE_UNKNOWN_0A_0E = 0x0A;
const uint8_t RTMP_CONTENT_TYPE_FLEX_STREAM = 0x0F;
const uint8_t RTMP_CONTENT_TYPE_FLEX_SHARED_OBJECT = 0x10;
const uint8_t RTMP_CONTENT_TYPE_MESSAGE = 0x11;
const uint8_t RTMP_CONTENT_TYPE_NOTIFY = 0x12;
const uint8_t RTMP_CONTENT_TYPE_SHARED_OBJECT = 0x13;
const uint8_t RTMP_CONTENT_TYPE_INVOKE = 0x14;
/* shared object datatypes */
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_CONNECT = 0x01;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_DISCONNECT = 0x02;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_SET_ATTRIBUTE = 0x03;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_UPDATE_DATA = 0x04;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_UPDATE_ATTRIBUTE = 0x05;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_SEND_MESSAGE = 0x06;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_STATUS = 0x07;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_CLEAR_DATA = 0x08;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_DELETE_DATA = 0x09;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_DELETE_ATTRIBUTE = 0x0A;
const uint8_t RTMP_SHARED_OBJECT_DATATYPE_INITIAL_DATA = 0x0B;
/* pings */
const uint16_t RTMP_PING_CLEAR_STREAM = 0x0000;
const uint16_t RTMP_PING_CLEAR_PLAYING_BUFFER = 0x0001;
const uint16_t RTMP_PING_BUFFER_TIME_CLIENT = 0x0003;
const uint16_t RTMP_PING_RESET_STREAM = 0x0004;
const uint16_t RTMP_PING_CLIENT_FROM_SERVER = 0x0006;
const uint16_t RTMP_PING_PONG_FROM_CLIENT = 0x0007;
/* pings sizes */
const uint8_t RTMP_PING_SIZE_CLEAR_STREAM = 6;
const uint8_t RTMP_PING_SIZE_CLEAR_PLAYING_BUFFER = 6;
const uint8_t RTMP_PING_SIZE_BUFFER_TIME_CLIENT = 10;
const uint8_t RTMP_PING_SIZE_RESET_STREAM = 6;
/*const uint8_t RTMP_PING_SIZE_CLIENT_FROM_SERVER = 0x0006; TODO
const uint8_t RTMP_PING_SIZE_PONG_FROM_CLIENT = 0x0007;
*/
/* default values */
const uint8_t RTMP_DEFAULT_STREAM_INDEX_CONTROL = 0x02;
const uint8_t RTMP_DEFAULT_STREAM_INDEX_INVOKE = 0x03;
const uint8_t RTMP_DEFAULT_STREAM_INDEX_NOTIFY = 0x04;
const uint8_t RTMP_DEFAULT_STREAM_INDEX_VIDEO_DATA = 0x05;
const uint8_t RTMP_DEFAULT_STREAM_INDEX_AUDIO_DATA = 0x06;
const uint32_t RTMP_DEFAULT_CHUNK_SIZE = 128;
const double RTMP_DEFAULT_STREAM_CLIENT_ID = 1.0;
const double RTMP_DEFAULT_STREAM_SERVER_ID = 1.0;
/* misc */
const uint16_t MAX_EMPTY_BLOCKS = 200; /* empty blocks in fifo for media*/
const uint16_t RTMP_BODY_SIZE_ALLOC = 1024;
const uint32_t RTMP_TIME_CLIENT_BUFFER = 2000; /* miliseconds */
const uint32_t RTMP_SERVER_BW = 0x00000200;
const uint32_t RTMP_SRC_DST_CONNECT_OBJECT = 0x00000000;
const uint32_t RTMP_SRC_DST_CONNECT_OBJECT2 = 0x00000001;
const uint32_t RTMP_SRC_DST_DEFAULT = 0x01000000;
const uint64_t RTMP_AUDIOCODECS = 0x4083380000000000;
const uint64_t RTMP_VIDEOCODECS = 0x405f000000000000;
const uint64_t RTMP_VIDEOFUNCTION = 0x3ff0000000000000;
/*****************************************************************************
* AMF header:
******************************************************************************/
/* boolean constants */
const uint8_t AMF_BOOLEAN_FALSE = 0x00;
const uint8_t AMF_BOOLEAN_TRUE = 0x01;
/* datatypes */
const uint8_t AMF_DATATYPE_NUMBER = 0x00;
const uint8_t AMF_DATATYPE_BOOLEAN = 0x01;
const uint8_t AMF_DATATYPE_STRING = 0x02;
const uint8_t AMF_DATATYPE_OBJECT = 0x03;
const uint8_t AMF_DATATYPE_MOVIE_CLIP = 0x04;
const uint8_t AMF_DATATYPE_NULL = 0x05;
const uint8_t AMF_DATATYPE_UNDEFINED = 0x06;
const uint8_t AMF_DATATYPE_REFERENCE = 0x07;
const uint8_t AMF_DATATYPE_MIXED_ARRAY = 0x08;
const uint8_t AMF_DATATYPE_END_OF_OBJECT = 0x09;
const uint8_t AMF_DATATYPE_ARRAY = 0x0A;
const uint8_t AMF_DATATYPE_DATE = 0x0B;
const uint8_t AMF_DATATYPE_LONG_STRING = 0x0C;
const uint8_t AMF_DATATYPE_UNSUPPORTED = 0x0D;
const uint8_t AMF_DATATYPE_RECORDSET = 0x0E;
const uint8_t AMF_DATATYPE_XML = 0x0F;
const uint8_t AMF_DATATYPE_TYPED_OBJECT = 0x10;
const uint8_t AMF_DATATYPE_AMF3_DATA = 0x11;
/* datatypes sizes */
const uint8_t AMF_DATATYPE_SIZE_NUMBER = 9;
const uint8_t AMF_DATATYPE_SIZE_BOOLEAN = 2;
const uint8_t AMF_DATATYPE_SIZE_STRING = 3;
const uint8_t AMF_DATATYPE_SIZE_OBJECT = 1;
const uint8_t AMF_DATATYPE_SIZE_NULL = 1;
const uint8_t AMF_DATATYPE_SIZE_OBJECT_VARIABLE = 2;
const uint8_t AMF_DATATYPE_SIZE_MIXED_ARRAY = 5;
const uint8_t AMF_DATATYPE_SIZE_END_OF_OBJECT = 3;
/* amf remote calls */
const uint64_t AMF_CALL_NETCONNECTION_CONNECT = 0x3FF0000000000000;
const uint64_t AMF_CALL_NETCONNECTION_CONNECT_AUDIOCODECS = 0x4083380000000000;
const uint64_t AMF_CALL_NETCONNECTION_CONNECT_VIDEOCODECS = 0x405F000000000000;
const uint64_t AMF_CALL_NETCONNECTION_CONNECT_VIDEOFUNCTION = 0x3FF0000000000000;
const uint64_t AMF_CALL_NETCONNECTION_CONNECT_OBJECTENCODING = 0x0;
const double AMF_CALL_STREAM_CLIENT_NUMBER = 3.0;
const double AMF_CALL_ONBWDONE = 2.0;
const uint64_t AMF_CALL_NETSTREAM_PLAY = 0x0;
/*****************************************************************************
* FLV header:
******************************************************************************/
const uint8_t FLV_HEADER_SIGNATURE[3] = { 0x46, 0x4C, 0x56 }; /* always "FLV" */
const uint8_t FLV_HEADER_VERSION = 0x01;
const uint8_t FLV_HEADER_AUDIO = 0x04;
const uint8_t FLV_HEADER_VIDEO = 0x01;
const uint32_t FLV_HEADER_SIZE = 0x00000009; /* always 9 for known FLV files */
const uint32_t FLV_TAG_FIRST_PREVIOUS_TAG_SIZE = 0x00000000;
const uint8_t FLV_TAG_PREVIOUS_TAG_SIZE = 4;
const uint8_t FLV_TAG_SIZE = 11;
/* audio stereo types */
const uint8_t FLV_AUDIO_STEREO_MASK = 0x01;
const uint8_t FLV_AUDIO_STEREO_MONO = 0x00;
const uint8_t FLV_AUDIO_STEREO_STEREO = 0x01;
/* audio size */
const uint8_t FLV_AUDIO_SIZE_MASK = 0x02;
const uint8_t FLV_AUDIO_SIZE_8_BIT = 0x00;
const uint8_t FLV_AUDIO_SIZE_16_BIT = 0x02;
/* audio rate */
const uint8_t FLV_AUDIO_RATE_MASK = 0x0C;
const uint8_t FLV_AUDIO_RATE_5_5_KHZ = 0x00;
const uint8_t FLV_AUDIO_RATE_11_KHZ = 0x04;
const uint8_t FLV_AUDIO_RATE_22_KHZ = 0x08;
const uint8_t FLV_AUDIO_RATE_44_KHZ = 0x0C;
/* audio codec types */
const uint8_t FLV_AUDIO_CODEC_ID_MASK = 0xF0;
const uint8_t FLV_AUDIO_CODEC_ID_UNCOMPRESSED = 0x00;
const uint8_t FLV_AUDIO_CODEC_ID_ADPCM = 0x10;
const uint8_t FLV_AUDIO_CODEC_ID_MP3 = 0x20;
const uint8_t FLV_AUDIO_CODEC_ID_NELLYMOSER_8KHZ_MONO = 0x50;
const uint8_t FLV_AUDIO_CODEC_ID_NELLYMOSER = 0x60;
/* video codec types */
const uint8_t FLV_VIDEO_CODEC_ID_MASK = 0x0F;
const uint8_t FLV_VIDEO_CODEC_ID_SORENSEN_H263 = 0x02;
const uint8_t FLV_VIDEO_CODEC_ID_SCREEN_VIDEO = 0x03;
const uint8_t FLV_VIDEO_CODEC_ID_ON2_VP6 = 0x04;
const uint8_t FLV_VIDEO_CODEC_ID_ON2_VP6_ALPHA = 0x05;
const uint8_t FLV_VIDEO_CODEC_ID_SCREEN_VIDEO_2 = 0x06;
/* video frame types */
const uint8_t FLV_VIDEO_FRAME_TYPE_MASK = 0xF0;
const uint8_t FLV_VIDEO_FRAME_TYPE_KEYFRAME = 0x10;
const uint8_t FLV_VIDEO_FRAME_TYPE_INTER_FRAME = 0x20;
const uint8_t FLV_VIDEO_FRAME_TYPE_DISPOSABLE_INTER_FRAME = 0x30;
/*****************************************************************************
* static RTMP functions:
******************************************************************************/
static void rtmp_handler_null ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void rtmp_handler_chunk_size ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void rtmp_handler_invoke ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void rtmp_handler_audio_data ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void rtmp_handler_video_data ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void rtmp_handler_notify ( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static rtmp_packet_t *rtmp_new_packet( rtmp_control_thread_t *p_thread, uint8_t stream_index, uint32_t timestamp, uint8_t content_type, uint32_t src_dst, rtmp_body_t *body );
static block_t *rtmp_new_block( rtmp_control_thread_t *p_thread, uint8_t *buffer, int32_t length_buffer );
static rtmp_packet_t *rtmp_encode_onBWDone( rtmp_control_thread_t *p_thread, double number );
static rtmp_packet_t *rtmp_encode_server_bw( rtmp_control_thread_t *p_thread, uint32_t number );
static rtmp_packet_t *rtmp_encode_NetConnection_connect_result( rtmp_control_thread_t *p_thread, double number );
static rtmp_packet_t *rtmp_encode_createStream_result( rtmp_control_thread_t *p_thread, double stream_client, double stream_server );
static rtmp_packet_t *rtmp_encode_ping_reset_stream( rtmp_control_thread_t *p_thread );
static rtmp_packet_t *rtmp_encode_ping_clear_stream( rtmp_control_thread_t *p_thread, uint32_t src_dst );
static rtmp_packet_t *rtmp_encode_NetStream_play_reset_onStatus( rtmp_control_thread_t *p_thread, char *psz_media );
static rtmp_packet_t *rtmp_encode_NetStream_play_start_onStatus( rtmp_control_thread_t *p_thread, char *psz_media );
static uint8_t rtmp_encode_header_size( vlc_object_t *p_this, uint8_t header_size );
static uint8_t rtmp_decode_header_size( vlc_object_t *p_this, uint8_t header_size );
static uint8_t rtmp_get_stream_index( uint8_t content_type );
static void rtmp_body_append( rtmp_body_t *rtmp_body, uint8_t *buffer, uint32_t length );
static uint8_t *rtmp_encode_ping( uint16_t type, uint32_t src_dst, uint32_t third_arg, uint32_t fourth_arg );
/*****************************************************************************
* static AMF functions:
******************************************************************************/
static uint8_t *amf_encode_element( uint8_t element, const void *value );
static uint8_t *amf_encode_object_variable( const char *key, uint8_t element, const void *value );
static double amf_decode_number( uint8_t **buffer );
static int amf_decode_boolean( uint8_t **buffer );
static char *amf_decode_string( uint8_t **buffer );
static char *amf_decode_object( uint8_t **buffer );
/*****************************************************************************
* static FLV functions:
******************************************************************************/
static void flv_rebuild( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
static void flv_get_metadata_audio( rtmp_control_thread_t *p_thread, rtmp_packet_t *packet_audio, uint8_t *stereo, uint8_t *audiosamplesize, uint32_t *audiosamplerate, uint8_t *audiocodecid );
static void flv_get_metadata_video( rtmp_control_thread_t *p_thread, rtmp_packet_t *packet_video, uint8_t *videocodecid, uint8_t *frametype );
static rtmp_packet_t *flv_build_onMetaData( access_t *p_access, uint64_t duration, uint8_t stereo, uint8_t audiosamplesize, uint32_t audiosamplerate, uint8_t audiocodecid, uint8_t videocodecid );
/*****************************************************************************
* RTMP implementation:
******************************************************************************/
int
rtmp_handshake_passive( vlc_object_t *p_this, int fd )
{
uint8_t p_read[RTMP_HANDSHAKE_BODY_SIZE + 1];
uint8_t p_write[RTMP_HANDSHAKE_BODY_SIZE * 2 + 1];
ssize_t i_ret;
int i;
/* Receive handshake */
i_ret = net_Read( p_this, fd, NULL, p_read, RTMP_HANDSHAKE_BODY_SIZE + 1, true );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE + 1 )
{
msg_Err( p_this, "failed to receive handshake" );
return -1;
}
/* Check handshake */
if ( p_read[0] != RTMP_HANDSHAKE )
{
msg_Err( p_this, "first byte in handshake corrupt" );
return -1;
}
/* Answer handshake */
p_write[0] = RTMP_HANDSHAKE;
memset( p_write + 1, 0, RTMP_HANDSHAKE_BODY_SIZE );
memcpy( p_write + 1 + RTMP_HANDSHAKE_BODY_SIZE, p_read + 1, RTMP_HANDSHAKE_BODY_SIZE );
/* Send handshake*/
i_ret = net_Write( p_this, fd, NULL, p_write, RTMP_HANDSHAKE_BODY_SIZE * 2 + 1 );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE * 2 + 1 )
{
msg_Err( p_this, "failed to send handshake" );
return -1;
}
/* Receive acknowledge */
i_ret = net_Read( p_this, fd, NULL, p_read, RTMP_HANDSHAKE_BODY_SIZE, true );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE )
{
msg_Err( p_this, "failed to receive acknowledge" );
return -1;
}
/* Check acknowledge */
for(i = 8; i < RTMP_HANDSHAKE_BODY_SIZE; i++ )
if( p_write[i + 1] != p_read[i] )
{
msg_Err( p_this, "body acknowledge received corrupt" );
return -1;
}
return 0;
}
int
rtmp_handshake_active( vlc_object_t *p_this, int fd )
{
uint8_t p_read[RTMP_HANDSHAKE_BODY_SIZE * 2 + 1];
uint8_t p_write[RTMP_HANDSHAKE_BODY_SIZE + 1];
ssize_t i_ret;
int i;
p_write[0] = RTMP_HANDSHAKE;
for( i = 0; i < RTMP_HANDSHAKE_BODY_SIZE; i++ )
p_write[i + 1] = i & 0xFF;
/* Send handshake*/
i_ret = net_Write( p_this, fd, NULL, p_write, RTMP_HANDSHAKE_BODY_SIZE + 1 );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE + 1 )
{
msg_Err( p_this, "failed to send handshake" );
return -1;
}
/* Receive handshake */
i_ret = net_Read( p_this, fd, NULL, p_read, RTMP_HANDSHAKE_BODY_SIZE * 2 + 1, true );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE * 2 + 1 )
{
msg_Err( p_this, "failed to receive handshake" );
return -1;
}
/* Check handshake */
if( p_read[0] != RTMP_HANDSHAKE )
{
msg_Err( p_this, "first byte in handshake received corrupt" );
return -1;
}
for(i = 8; i < RTMP_HANDSHAKE_BODY_SIZE; i++ )
if( p_write[i + 1] != p_read[i + 1 + RTMP_HANDSHAKE_BODY_SIZE] )
{
msg_Err( p_this, "body handshake received corrupt" );
return -1;
}
/* Acknowledge handshake */
i_ret = net_Write( p_this, fd, NULL, p_read + 1, RTMP_HANDSHAKE_BODY_SIZE );
if( i_ret != RTMP_HANDSHAKE_BODY_SIZE )
{
msg_Err( p_this, "failed to acknowledge handshake" );
return -1;
}
return 0;
}
int
rtmp_connect_active( rtmp_control_thread_t *p_thread )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
char *tmp_url;
ssize_t i_ret;
/* Build NetConnection.connect call */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "connect" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "connect" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&AMF_CALL_NETCONNECTION_CONNECT );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_OBJECT );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "app",
AMF_DATATYPE_STRING, p_thread->psz_application );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "app" ) +
AMF_DATATYPE_SIZE_STRING + strlen( p_thread->psz_application ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "flashVer",
AMF_DATATYPE_STRING, "LNX 9,0,48,0" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "flashVer" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "LNX 9,0,48,0" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "swfUrl",
AMF_DATATYPE_STRING, "file:///mac.flv" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "swfUrl" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "file:///mac.flv" ) );
free( tmp_buffer );
tmp_url = (char *) malloc( strlen( "rtmp://") + strlen( p_thread->url.psz_buffer ) + 1 );
if( !tmp_url )
{
free( rtmp_body->body );
free( rtmp_body );
return -1;
}
sprintf( tmp_url, "rtmp://%s", p_thread->url.psz_buffer );
tmp_buffer = amf_encode_object_variable( "tcUrl",
AMF_DATATYPE_STRING, tmp_url );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "tcUrl" ) +
AMF_DATATYPE_SIZE_STRING + strlen( tmp_url ) );
free( tmp_url );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "fpad",
AMF_DATATYPE_BOOLEAN, &AMF_BOOLEAN_FALSE );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "fpad" ) +
AMF_DATATYPE_SIZE_BOOLEAN );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "audioCodecs",
AMF_DATATYPE_NUMBER, &AMF_CALL_NETCONNECTION_CONNECT_AUDIOCODECS );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "audioCodecs" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "videoCodecs",
AMF_DATATYPE_NUMBER, &AMF_CALL_NETCONNECTION_CONNECT_VIDEOCODECS );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "videoCodecs" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "videoFunction",
AMF_DATATYPE_NUMBER, &AMF_CALL_NETCONNECTION_CONNECT_VIDEOFUNCTION );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "videoFunction" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "pageUrl",
AMF_DATATYPE_STRING, "file:///mac.html" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "pageUrl" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "file:///mac.html" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "objectEncoding",
AMF_DATATYPE_NUMBER, &AMF_CALL_NETCONNECTION_CONNECT_OBJECTENCODING );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "objectEncoding" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element ( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_thread, rtmp_packet );
/* Call NetConnection.connect */
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret != rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_thread, "failed send call NetConnection.connect" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
/* Wait for NetConnection.connect result */
vlc_mutex_lock( &p_thread->lock );
vlc_cond_wait( &p_thread->wait, &p_thread->lock );
vlc_mutex_unlock( &p_thread->lock );
if( p_thread->result_connect )
{
msg_Err( p_thread, "failed call NetConnection.connect" );
return -1;
}
/* Force control thread to stop if receive NetStream.play call and wait is not ready */
vlc_mutex_lock( &p_thread->lock );
/* Build NetStream.createStream call */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "createStream" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "createStream" ) );
free( tmp_buffer );
p_thread->stream_client_id = RTMP_DEFAULT_STREAM_CLIENT_ID;
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&AMF_CALL_STREAM_CLIENT_NUMBER );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_thread, rtmp_packet );
/* Call NetStream.createStream */
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret != rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_thread, "failed send call NetStream.createStream" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
/*TODO: read server stream number*/
/* Build ping packet */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = rtmp_encode_ping( RTMP_PING_BUFFER_TIME_CLIENT, RTMP_SRC_DST_CONNECT_OBJECT, RTMP_TIME_CLIENT_BUFFER, 0 );
rtmp_body_append( rtmp_body, tmp_buffer, RTMP_PING_SIZE_BUFFER_TIME_CLIENT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_PING, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_thread, rtmp_packet );
/* Send ping packet */
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret != rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_thread, "failed send ping BUFFER_TIME_CLIENT" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
/* Build NetStream.play call */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "play" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "play" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&AMF_CALL_NETSTREAM_PLAY );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, p_thread->psz_media );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( p_thread->psz_media ) );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, RTMP_SRC_DST_DEFAULT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_thread, rtmp_packet );
/* Call NetStream.play */
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret != rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_thread, "failed send call NetStream.play" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
/* Build ping packet */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = rtmp_encode_ping( RTMP_PING_BUFFER_TIME_CLIENT, RTMP_SRC_DST_CONNECT_OBJECT2, RTMP_TIME_CLIENT_BUFFER, 0 );
rtmp_body_append( rtmp_body, tmp_buffer, RTMP_PING_SIZE_BUFFER_TIME_CLIENT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_PING, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_thread, rtmp_packet );
/* Send ping packet */
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret != rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_thread, "failed send ping BUFFER_TIME_CLIENT" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
/* Wait for NetStream.play.start result */
vlc_cond_wait( &p_thread->wait, &p_thread->lock );
vlc_mutex_unlock( &p_thread->lock );
if( p_thread->result_play )
{
msg_Err( p_thread, "failed call NetStream.play" );
return -1;
}
/* Next packet is the beginning of flv stream */
msg_Dbg( p_thread, "next packet is the beginning of flv stream" );
return 0;
}
int
rtmp_connect_passive( rtmp_control_thread_t *p_thread )
{
/* Force control thread to stop if receive NetStream.play call and wait is not ready */
vlc_mutex_lock( &p_thread->lock );
/* Wait for NetStream.play.start result */
vlc_cond_wait( &p_thread->wait, &p_thread->lock );
vlc_mutex_unlock( &p_thread->lock );
if( p_thread->result_play )
{
msg_Err( p_thread, "failed call NetStream.play" );
return -1;
}
return 0;
}
/* TODO
int
rtmp_seek( access_t *p_access, int64_t i_pos )
{
access_sys_t *p_sys = p_access->p_sys;
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
uint64_t tmp_number;
ssize_t i_ret;
msg_Warn(p_access, "i_pos %lld", i_pos);
// Build NetStream.seek call //
rtmp_body = rtmp_body_new();
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "seek" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "seek" ) );
free( tmp_buffer );
tmp_number = 0;
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&tmp_number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
//TODO: convert i_pos to double and see if they are milliseconds
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&i_pos );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_sys->p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_DATATYPE_INVOKE, RTMP_SRC_DST_DEFAULT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
tmp_buffer = rtmp_encode_packet( p_access, rtmp_packet );
// Call NetStream.seek //
i_ret = net_Write( p_access, p_sys->fd, NULL, tmp_buffer, rtmp_packet->length_encoded );
if( i_ret < rtmp_packet->length_encoded )
{
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
msg_Err( p_access, "failed call NetStream.seek" );
return -1;
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
free( tmp_buffer );
// Receive TODO: see what //
rtmp_packet = rtmp_read_net_packet( p_access, p_sys->fd );
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
return 0;
}
*/
rtmp_packet_t *
rtmp_build_bytes_read( rtmp_control_thread_t *p_thread, uint32_t reply )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build bytes read packet */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = (uint8_t *) malloc( sizeof( uint32_t ) * sizeof( uint8_t ) );
if( !tmp_buffer ) return NULL;
reply = hton32( reply );
memcpy( tmp_buffer, &reply, sizeof( uint32_t ) );
rtmp_body_append( rtmp_body, tmp_buffer, sizeof( uint32_t ) );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_BYTES_READ, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
rtmp_packet_t *
rtmp_build_publish_start( rtmp_control_thread_t *p_thread )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build publish start event */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "onStatus" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "onStatus" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER,
&p_thread->stream_server_id );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_OBJECT );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "level",
AMF_DATATYPE_STRING, "status" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "level" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "status" ) );
free ( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "code",
AMF_DATATYPE_STRING, "NetStream.Publish.Start" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "code" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "NetStream.Publish.Start" ) );
free ( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "description",
AMF_DATATYPE_STRING, "" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "description" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "" ) );
free ( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "details",
AMF_DATATYPE_STRING, p_thread->psz_publish );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "details" ) +
AMF_DATATYPE_SIZE_STRING + strlen( p_thread->psz_publish ) );
free ( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "clientid",
AMF_DATATYPE_NUMBER, &p_thread->stream_client_id );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "clientid" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element ( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
rtmp_packet_t *
rtmp_build_flv_over_rtmp( rtmp_control_thread_t *p_thread, block_t *p_buffer )
{
rtmp_packet_t *rtmp_packet;
if( p_thread->flv_length_body > 0 )
{
p_thread->flv_length_body -= p_buffer->i_buffer;
rtmp_body_append( p_thread->flv_body, p_buffer->p_buffer, p_buffer->i_buffer );
if( p_thread->flv_length_body > 0 )
return NULL;
}
else
{
p_thread->flv_content_type = *p_buffer->p_buffer;
p_buffer->p_buffer[0] = 0;
p_thread->flv_length_body = ntoh32( *(uint32_t *) (p_buffer->p_buffer) );
p_buffer->p_buffer[3] = 0;
p_thread->flv_timestamp = ntoh32( *(uint32_t *) (p_buffer->p_buffer + 3) );
}
if( p_thread->flv_length_body > p_buffer->i_buffer - FLV_TAG_SIZE - FLV_TAG_PREVIOUS_TAG_SIZE )
{
p_thread->flv_length_body -= p_buffer->i_buffer - FLV_TAG_SIZE - FLV_TAG_PREVIOUS_TAG_SIZE;
rtmp_body_append( p_thread->flv_body, p_buffer->p_buffer + FLV_TAG_SIZE, p_buffer->i_buffer - FLV_TAG_SIZE );
return NULL;
}
else
{
rtmp_body_append( p_thread->flv_body, p_buffer->p_buffer + FLV_TAG_SIZE, p_thread->flv_length_body );
}
rtmp_packet = rtmp_new_packet( p_thread, rtmp_get_stream_index( p_thread->flv_content_type ),
p_thread->flv_timestamp, p_thread->flv_content_type, RTMP_SRC_DST_DEFAULT, p_thread->flv_body );
p_thread->flv_length_body = 0;
rtmp_body_reset( p_thread->flv_body );
return rtmp_packet;
}
rtmp_packet_t *
rtmp_read_net_packet( rtmp_control_thread_t *p_thread )
{
int length_header;
int stream_index;
int bytes_left;
uint8_t p_read[12];
rtmp_packet_t *rtmp_packet;
ssize_t i_ret;
for(;;)
{
i_ret = net_Read( p_thread, p_thread->fd, NULL, p_read, 1, true );
if( i_ret != 1 )
goto error;
length_header = rtmp_decode_header_size( (vlc_object_t *) p_thread, p_read[0] & RTMP_HEADER_SIZE_MASK );
stream_index = p_read[0] & RTMP_HEADER_STREAM_INDEX_MASK;
i_ret = net_Read( p_thread, p_thread->fd, NULL, p_read + 1, length_header - 1, true );
if( i_ret != length_header - 1 )
goto error;
/* Update timestamp if not is an interchunk packet */
if( length_header == 1 && p_thread->rtmp_headers_recv[stream_index].body == NULL )
{
p_thread->rtmp_headers_recv[stream_index].timestamp +=
p_thread->rtmp_headers_recv[stream_index].timestamp_relative;
}
/* Length 4 and 8 headers have relative timestamp */
if( length_header == 4 || length_header == 8 )
{
p_read[0] = 0;
p_thread->rtmp_headers_recv[stream_index].timestamp_relative = ntoh32( *(uint32_t *) p_read );
p_thread->rtmp_headers_recv[stream_index].timestamp +=
p_thread->rtmp_headers_recv[stream_index].timestamp_relative;
}
if( length_header >= 8 )
{
p_read[3] = 0;
p_thread->rtmp_headers_recv[stream_index].length_body = ntoh32( *(uint32_t *) (p_read + 3) );
p_thread->rtmp_headers_recv[stream_index].content_type = p_read[7];
}
/* Length 12 headers have absolute timestamp */
if( length_header >= 12 )
{
p_read[0] = 0;
p_thread->rtmp_headers_recv[stream_index].timestamp = ntoh32( *(uint32_t *) p_read );
p_thread->rtmp_headers_recv[stream_index].src_dst = ntoh32( *(uint32_t *) (p_read + 8) );
}
if( p_thread->rtmp_headers_recv[stream_index].body == NULL )
{
p_thread->rtmp_headers_recv[stream_index].body =
rtmp_body_new( p_thread->rtmp_headers_recv[stream_index].length_body );
}
bytes_left = p_thread->rtmp_headers_recv[stream_index].body->length_buffer -
p_thread->rtmp_headers_recv[stream_index].body->length_body;
if( bytes_left > p_thread->chunk_size_recv )
bytes_left = p_thread->chunk_size_recv;
i_ret = net_Read( p_thread, p_thread->fd, NULL,
p_thread->rtmp_headers_recv[stream_index].body->body +
p_thread->rtmp_headers_recv[stream_index].body->length_body,
bytes_left, true );
if( i_ret != bytes_left )
goto error;
p_thread->rtmp_headers_recv[stream_index].body->length_body += bytes_left;
if( p_thread->rtmp_headers_recv[stream_index].length_body == p_thread->rtmp_headers_recv[stream_index].body->length_body )
{
rtmp_packet = (rtmp_packet_t *) malloc( sizeof( rtmp_packet_t ) );
if( !rtmp_packet ) goto error;
rtmp_packet->stream_index = stream_index;
rtmp_packet->timestamp = p_thread->rtmp_headers_recv[stream_index].timestamp;
rtmp_packet->timestamp_relative = p_thread->rtmp_headers_recv[stream_index].timestamp_relative;
rtmp_packet->content_type = p_thread->rtmp_headers_recv[stream_index].content_type;
rtmp_packet->src_dst = p_thread->rtmp_headers_recv[stream_index].src_dst;
rtmp_packet->length_body = p_thread->rtmp_headers_recv[stream_index].length_body;
rtmp_packet->body = p_thread->rtmp_headers_recv[stream_index].body;
p_thread->rtmp_headers_recv[stream_index].body = NULL;
return rtmp_packet;
}
}
error:
msg_Err( p_thread, "rtmp_read_net_packet: net_Read error");
return NULL;
}
void
rtmp_init_handler( rtmp_handler_t *rtmp_handler )
{
rtmp_handler[RTMP_CONTENT_TYPE_CHUNK_SIZE] = rtmp_handler_chunk_size;
rtmp_handler[RTMP_CONTENT_TYPE_UNKNOWN_02] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_BYTES_READ] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_PING] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_SERVER_BW] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_CLIENT_BW] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_UNKNOWN_07] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_AUDIO_DATA] = rtmp_handler_audio_data;
rtmp_handler[RTMP_CONTENT_TYPE_VIDEO_DATA] = rtmp_handler_video_data;
rtmp_handler[RTMP_CONTENT_TYPE_UNKNOWN_0A_0E] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_FLEX_STREAM] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_FLEX_SHARED_OBJECT] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_MESSAGE] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_NOTIFY] = rtmp_handler_notify;
rtmp_handler[RTMP_CONTENT_TYPE_SHARED_OBJECT] = rtmp_handler_null;
rtmp_handler[RTMP_CONTENT_TYPE_INVOKE] = rtmp_handler_invoke;
}
static void
rtmp_handler_null( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
VLC_UNUSED(p_thread);
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
}
static void
rtmp_handler_chunk_size( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
p_thread->chunk_size_recv = ntoh32( *(uint32_t *) (rtmp_packet->body->body) );
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
}
static void
rtmp_handler_audio_data( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
block_t *p_buffer;
if( !p_thread->has_audio )
{
p_thread->has_audio = 1;
flv_get_metadata_audio( p_thread, rtmp_packet,
&p_thread->metadata_stereo, &p_thread->metadata_samplesize,
&p_thread->metadata_samplerate, &p_thread->metadata_audiocodecid );
}
flv_rebuild( p_thread, rtmp_packet );
p_buffer = rtmp_new_block( p_thread, rtmp_packet->body->body, rtmp_packet->body->length_body );
block_FifoPut( p_thread->p_fifo_input, p_buffer );
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
}
static void
rtmp_handler_video_data( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
block_t *p_buffer;
if( !p_thread->has_video )
{
p_thread->has_video = 1;
flv_get_metadata_video( p_thread, rtmp_packet,
&p_thread->metadata_videocodecid, &p_thread->metadata_frametype );
}
flv_rebuild( p_thread, rtmp_packet );
p_buffer = rtmp_new_block( p_thread, rtmp_packet->body->body, rtmp_packet->body->length_body );
block_FifoPut( p_thread->p_fifo_input, p_buffer );
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
}
static void
rtmp_handler_notify( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
block_t *p_buffer;
p_thread->metadata_received = 1;
flv_rebuild( p_thread, rtmp_packet );
p_buffer = rtmp_new_block( p_thread, rtmp_packet->body->body, rtmp_packet->body->length_body );
block_FifoPut( p_thread->p_fifo_input, p_buffer );
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
}
static void
rtmp_handler_invoke( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
rtmp_packet_t *tmp_rtmp_packet;
uint8_t *i, *end, *tmp_buffer;
double number;
char *string, *string2;
ssize_t i_ret;
i = rtmp_packet->body->body;
end = rtmp_packet->body->body + rtmp_packet->body->length_body;
i++; /* Pass over AMF_DATATYPE_STRING */
string = amf_decode_string( &i );
i++; /* Pass over AMF_DATATYPE_NUMBER */
number = amf_decode_number( &i );
msg_Dbg( p_thread, "%s %.1f", string, number );
if( strcmp( "connect", string ) == 0 )
{
/* Connection bandwith */
tmp_rtmp_packet = rtmp_encode_onBWDone( p_thread, AMF_CALL_ONBWDONE );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send connection bandwith" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Server bandwith */
tmp_rtmp_packet = rtmp_encode_server_bw( p_thread, RTMP_SERVER_BW );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send server bandwith" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Clear stream */
tmp_rtmp_packet = rtmp_encode_ping_clear_stream( p_thread, RTMP_SRC_DST_CONNECT_OBJECT );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send clear stream" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Reply NetConnection.connect */
tmp_rtmp_packet = rtmp_encode_NetConnection_connect_result( p_thread, number );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send reply NetConnection.connect" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
}
else if( strcmp( "createStream", string ) == 0 )
{
p_thread->stream_client_id = number;
p_thread->stream_server_id = RTMP_DEFAULT_STREAM_SERVER_ID;
/* Reply createStream */
tmp_rtmp_packet = rtmp_encode_createStream_result( p_thread, p_thread->stream_client_id, p_thread->stream_server_id );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send reply createStream" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Reset stream */
tmp_rtmp_packet = rtmp_encode_ping_reset_stream( p_thread );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send reset stream" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Clear stream */
tmp_rtmp_packet = rtmp_encode_ping_clear_stream( p_thread, RTMP_SRC_DST_CONNECT_OBJECT2 );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send clear stream" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
}
else if( strcmp( "publish", string ) == 0 )
{
i++;
msg_Dbg( p_thread, "null" );
i++;
string2 = amf_decode_string( &i );
msg_Dbg( p_thread, "string: %s", string2 );
p_thread->psz_publish = strdup( string2 );
free( string2 );
}
else if( strcmp( "play", string ) == 0 )
{
i++;
msg_Dbg( p_thread, "null" );
i++;
string2 = amf_decode_string( &i );
msg_Dbg( p_thread, "string: %s", string2 );
/* Reply NetStream.play.reset */
tmp_rtmp_packet = rtmp_encode_NetStream_play_reset_onStatus( p_thread, string2 );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send reply NetStream.play.reset" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
/* Reply NetStream.play.start */
tmp_rtmp_packet = rtmp_encode_NetStream_play_start_onStatus( p_thread, string2 );
tmp_buffer = rtmp_encode_packet( p_thread, tmp_rtmp_packet );
i_ret = net_Write( p_thread, p_thread->fd, NULL, tmp_buffer, tmp_rtmp_packet->length_encoded );
if( i_ret != tmp_rtmp_packet->length_encoded )
{
msg_Err( p_thread, "failed send reply NetStream.play.start" );
goto error;
}
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
free( string2 );
p_thread->result_play = 0;
vlc_mutex_lock( &p_thread->lock );
vlc_cond_signal( &p_thread->wait );
vlc_mutex_unlock( &p_thread->lock );
}
free( string );
while( i < end )
{
if( *i == AMF_DATATYPE_NUMBER )
{
i++;
msg_Dbg( p_thread, "number: %le", amf_decode_number( &i ) );
}
else if( *i == AMF_DATATYPE_BOOLEAN )
{
i++;
msg_Dbg( p_thread, "boolean: %s", amf_decode_boolean( &i ) ? "true" : "false" );
}
else if( *i == AMF_DATATYPE_STRING )
{
i++;
string = amf_decode_string( &i );
msg_Dbg( p_thread, "string: %s", string );
free( string );
}
else if( *i == AMF_DATATYPE_OBJECT )
{
i++;
msg_Dbg( p_thread, "object" );
while( ( string = amf_decode_object( &i ) ) != NULL )
{
if( *i == AMF_DATATYPE_NUMBER )
{
i++;
msg_Dbg( p_thread, "key: %s value: %le", string, amf_decode_number( &i ) );
}
else if( *i == AMF_DATATYPE_BOOLEAN )
{
i++;
msg_Dbg( p_thread, "key: %s value: %s", string, amf_decode_boolean( &i ) ? "true" : "false" );
}
else if( *i == AMF_DATATYPE_STRING )
{
i++;
string2 = amf_decode_string( &i );
msg_Dbg( p_thread, "key: %s value: %s", string, string2 );
if( strcmp( "code", string ) == 0 )
{
if( strcmp( "NetConnection.Connect.Success", string2 ) == 0 )
{
p_thread->result_connect = 0;
vlc_mutex_lock( &p_thread->lock );
vlc_cond_signal( &p_thread->wait );
vlc_mutex_unlock( &p_thread->lock );
}
else if( strcmp( "NetConnection.Connect.InvalidApp", string2 ) == 0 )
{
p_thread->b_die = 1;
vlc_mutex_lock( &p_thread->lock );
vlc_cond_signal( &p_thread->wait );
vlc_mutex_unlock( &p_thread->lock );
}
else if( strcmp( "NetStream.Play.Start", string2 ) == 0 )
{
p_thread->result_play = 0;
vlc_mutex_lock( &p_thread->lock );
vlc_cond_signal( &p_thread->wait );
vlc_mutex_unlock( &p_thread->lock );
}
else if( strcmp( "NetStream.Play.Stop", string2 ) == 0 )
{
p_thread->result_stop = 1;
block_FifoWake( p_thread->p_fifo_input );
}
}
free( string2 );
}
else if( *i == AMF_DATATYPE_NULL )
{
i++;
msg_Dbg( p_thread, "key: %s value: Null", string );
}
else if( *i == AMF_DATATYPE_UNDEFINED )
{
i++;
msg_Dbg( p_thread, "key: %s value: undefined (Null)", string );
}
else
{
i++;
msg_Warn( p_thread, "key: %s value: undefined AMF type", string );
}
free( string );
}
msg_Dbg( p_thread, "end of object" );
}
else if( *i == AMF_DATATYPE_NULL)
{
i++;
msg_Dbg( p_thread, "null" );
}
else if( *i == AMF_DATATYPE_UNDEFINED )
{
i++;
msg_Dbg( p_thread, "undefined (null)" );
}
else
{
i++;
msg_Warn( p_thread, "undefined AMF type" );
}
}
free( rtmp_packet->body->body );
free( rtmp_packet->body );
free( rtmp_packet );
return;
error:
free( tmp_rtmp_packet->body->body );
free( tmp_rtmp_packet->body );
free( tmp_rtmp_packet );
free( tmp_buffer );
}
/* length header calculated automatically based on last packet in the same channel */
/* timestamps passed are always absolute */
static rtmp_packet_t *
rtmp_new_packet( rtmp_control_thread_t *p_thread, uint8_t stream_index, uint32_t timestamp, uint8_t content_type, uint32_t src_dst, rtmp_body_t *body )
{
int interchunk_headers;
rtmp_packet_t *rtmp_packet;
rtmp_packet = (rtmp_packet_t *) malloc( sizeof( rtmp_packet_t ) );
if( !rtmp_packet ) return NULL;
interchunk_headers = body->length_body / p_thread->chunk_size_send;
if( body->length_body % p_thread->chunk_size_send == 0 )
interchunk_headers--;
if( src_dst != p_thread->rtmp_headers_send[stream_index].src_dst )
{
p_thread->rtmp_headers_send[stream_index].timestamp = timestamp;
p_thread->rtmp_headers_send[stream_index].length_body = body->length_body;
p_thread->rtmp_headers_send[stream_index].content_type = content_type;
p_thread->rtmp_headers_send[stream_index].src_dst = src_dst;
rtmp_packet->length_header = 12;
}
else if( content_type != p_thread->rtmp_headers_send[stream_index].content_type
|| body->length_body != p_thread->rtmp_headers_send[stream_index].length_body )
{
p_thread->rtmp_headers_send[stream_index].timestamp_relative =
timestamp - p_thread->rtmp_headers_send[stream_index].timestamp;
p_thread->rtmp_headers_send[stream_index].timestamp = timestamp;
p_thread->rtmp_headers_send[stream_index].length_body = body->length_body;
p_thread->rtmp_headers_send[stream_index].content_type = content_type;
rtmp_packet->length_header = 8;
}
else if( timestamp != p_thread->rtmp_headers_send[stream_index].timestamp )
{
p_thread->rtmp_headers_send[stream_index].timestamp_relative =
timestamp - p_thread->rtmp_headers_send[stream_index].timestamp;
p_thread->rtmp_headers_send[stream_index].timestamp = timestamp;
rtmp_packet->length_header = 4;
}
else
{
rtmp_packet->length_header = 1;
}
/*TODO: puede que no haga falta guardar el timestamp relative */
rtmp_packet->stream_index = stream_index;
if( rtmp_packet->length_header == 12 )
{
rtmp_packet->timestamp = timestamp;
rtmp_packet->timestamp_relative = 0;
}
else
{
rtmp_packet->timestamp = timestamp;
rtmp_packet->timestamp_relative = p_thread->rtmp_headers_send[stream_index].timestamp_relative;
}
rtmp_packet->length_encoded = rtmp_packet->length_header + body->length_body + interchunk_headers;
rtmp_packet->length_body = body->length_body;
rtmp_packet->content_type = content_type;
rtmp_packet->src_dst = src_dst;
rtmp_packet->body = (rtmp_body_t *) malloc( sizeof( rtmp_body_t ) );
if( !rtmp_packet->body )
{
free( rtmp_packet );
return NULL;
}
rtmp_packet->body->length_body = body->length_body;
rtmp_packet->body->length_buffer = body->length_body;
rtmp_packet->body->body = (uint8_t *) malloc( rtmp_packet->body->length_buffer * sizeof( uint8_t ) );
if( !rtmp_packet->body->body )
{
free( rtmp_packet->body );
free( rtmp_packet );
return NULL;
}
memcpy( rtmp_packet->body->body, body->body, rtmp_packet->body->length_body );
return rtmp_packet;
}
static block_t *
rtmp_new_block( rtmp_control_thread_t *p_thread, uint8_t *buffer, int32_t length_buffer )
{
block_t *p_buffer;
/* DOWN: p_thread->p_empty_blocks->i_depth */
while ( block_FifoCount( p_thread->p_empty_blocks ) > MAX_EMPTY_BLOCKS )
{
p_buffer = block_FifoGet( p_thread->p_empty_blocks );
block_Release( p_buffer );
}
/* DOWN: p_thread->p_empty_blocks->i_depth */
if( block_FifoCount( p_thread->p_empty_blocks ) == 0 )
{
p_buffer = block_New( p_thread, length_buffer );
}
else
{
p_buffer = block_FifoGet( p_thread->p_empty_blocks );
p_buffer = block_Realloc( p_buffer, 0, length_buffer );
}
p_buffer->i_buffer = length_buffer;
memcpy( p_buffer->p_buffer, buffer, p_buffer->i_buffer );
return p_buffer;
}
/* call sequence for each packet rtmp_new_packet -> rtmp_encode_packet -> send */
/* no parallelism allowed because of optimization in header length */
uint8_t *
rtmp_encode_packet( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
uint8_t *out;
int interchunk_headers;
uint32_t timestamp, length_body, src_dst;
int i, j;
out = (uint8_t *) malloc( rtmp_packet->length_encoded * sizeof( uint8_t ) );
if( !out ) return NULL;
interchunk_headers = rtmp_packet->body->length_body / p_thread->chunk_size_send;
if( rtmp_packet->body->length_body % p_thread->chunk_size_send == 0 )
interchunk_headers--;
if( rtmp_packet->length_header == 12 )
{
/* Timestamp absolute */
timestamp = hton32( rtmp_packet->timestamp );
memcpy( out, ×tamp, sizeof( uint32_t ) );
src_dst = hton32( rtmp_packet->src_dst );
memcpy( out + 8, &src_dst, sizeof( uint32_t ) );
}
if( rtmp_packet->length_header >= 8 )
{
/* Length without inter chunk headers */
length_body = hton32( rtmp_packet->body->length_body );
memcpy( out + 3, &length_body, sizeof( uint32_t ) );
out[7] = rtmp_packet->content_type;
}
if( rtmp_packet->length_header >= 4 && rtmp_packet->length_header != 12 )
{
/* Timestamp relative */
timestamp = hton32( rtmp_packet->timestamp_relative );
memcpy( out, ×tamp, sizeof( uint32_t ) );
}
out[0] = rtmp_encode_header_size( (vlc_object_t *) p_thread, rtmp_packet->length_header ) + rtmp_packet->stream_index;
/* Insert inter chunk headers */
for(i = 0, j = 0; i < rtmp_packet->body->length_body + interchunk_headers; i++, j++)
{
if( j % p_thread->chunk_size_send == 0 && j != 0 )
out[rtmp_packet->length_header + i++] = RTMP_HEADER_SIZE_1 + rtmp_packet->stream_index;
out[rtmp_packet->length_header + i] = rtmp_packet->body->body[j];
}
return out;
}
static rtmp_packet_t *
rtmp_encode_onBWDone( rtmp_control_thread_t *p_thread, double number )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build onBWDone */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "onBWDone" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "onBWDone" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, RTMP_SRC_DST_CONNECT_OBJECT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_server_bw( rtmp_control_thread_t *p_thread, uint32_t number )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
/* Build server bw */
rtmp_body = rtmp_body_new( -1 );
rtmp_body_append( rtmp_body, (uint8_t *) &number, sizeof( uint32_t ) );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_SERVER_BW, RTMP_SRC_DST_CONNECT_OBJECT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_NetConnection_connect_result( rtmp_control_thread_t *p_thread, double number )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build NetConnection.connect result */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "_result" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "_result" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_OBJECT );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "level",
AMF_DATATYPE_STRING, "status" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "level" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "status" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "code",
AMF_DATATYPE_STRING, "NetConnection.Connect.Success" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "code" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "NetConnection.Connect.Success" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "description",
AMF_DATATYPE_STRING, "Connection succeeded." );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "description" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "Connection succeeded." ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element ( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_createStream_result( rtmp_control_thread_t *p_thread, double stream_client_id, double stream_server_id )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build createStream result */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "_result" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "_result" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &stream_client_id );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &stream_server_id );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_INVOKE, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_ping_reset_stream( rtmp_control_thread_t *p_thread )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build ping reset stream */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = rtmp_encode_ping( RTMP_PING_RESET_STREAM, RTMP_SRC_DST_CONNECT_OBJECT2, 0, 0 );
rtmp_body_append( rtmp_body, tmp_buffer, RTMP_PING_SIZE_RESET_STREAM );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_PING, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_ping_clear_stream( rtmp_control_thread_t *p_thread, uint32_t src_dst )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
/* Build ping clear stream */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = rtmp_encode_ping( RTMP_PING_CLEAR_STREAM, src_dst, 0, 0 );
rtmp_body_append( rtmp_body, tmp_buffer, RTMP_PING_SIZE_CLEAR_STREAM );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_CONTROL,
0, RTMP_CONTENT_TYPE_PING, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_NetStream_play_reset_onStatus( rtmp_control_thread_t *p_thread, char *psz_media )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
double number;
char *description;
/* Build NetStream.play.reset onStatus */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "onStatus" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "onStatus" ) );
free( tmp_buffer );
number = 1; /* TODO: review this number*/
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_OBJECT );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "level",
AMF_DATATYPE_STRING, "status" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "level" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "status" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "code",
AMF_DATATYPE_STRING, "NetStream.Play.Reset" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "code" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "NetStream.Play.Reset" ) );
free( tmp_buffer );
description = (char *) malloc( strlen( "Playing and resetting ") + strlen( psz_media ) + strlen( "." ) + 1 );
if( !description )
{
free( rtmp_body->body );
free( rtmp_body );
return NULL;
}
sprintf( description, "Playing and resetting %s.", psz_media );
tmp_buffer = amf_encode_object_variable( "description",
AMF_DATATYPE_STRING, description );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "description" ) +
AMF_DATATYPE_SIZE_STRING + strlen( description ) );
free( tmp_buffer );
free( description );
tmp_buffer = amf_encode_object_variable( "details",
AMF_DATATYPE_STRING, psz_media );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "details" ) +
AMF_DATATYPE_SIZE_STRING + strlen( psz_media ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "clientid",
AMF_DATATYPE_NUMBER, &p_thread->stream_client_id );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "clientid" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element ( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_NOTIFY,
0, RTMP_CONTENT_TYPE_INVOKE, RTMP_SRC_DST_DEFAULT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static rtmp_packet_t *
rtmp_encode_NetStream_play_start_onStatus( rtmp_control_thread_t *p_thread, char *psz_media )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
double number;
char *description;
/* Build NetStream.play.start onStatus */
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "onStatus" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "onStatus" ) );
free( tmp_buffer );
number = 1; /* TODO: review this number*/
tmp_buffer = amf_encode_element( AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_NULL, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_NULL );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_OBJECT );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "level",
AMF_DATATYPE_STRING, "status" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "level" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "status" ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "code",
AMF_DATATYPE_STRING, "NetStream.Play.Start" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "code" ) +
AMF_DATATYPE_SIZE_STRING + strlen( "NetStream.Play.Start" ) );
free( tmp_buffer );
description = (char *) malloc( strlen( "Started playing ") + strlen( psz_media ) + strlen( "." ) + 1 );
if( !description )
{
free( rtmp_body->body );
free( rtmp_body );
return NULL;
}
sprintf( description, "Started playing %s.", psz_media );
tmp_buffer = amf_encode_object_variable( "description",
AMF_DATATYPE_STRING, description );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "description" ) +
AMF_DATATYPE_SIZE_STRING + strlen( description ) );
free( tmp_buffer );
free( description );
tmp_buffer = amf_encode_object_variable( "details",
AMF_DATATYPE_STRING, psz_media );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "details" ) +
AMF_DATATYPE_SIZE_STRING + strlen( psz_media ) );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "clientid",
AMF_DATATYPE_NUMBER, &p_thread->stream_client_id );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "clientid" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element ( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_thread, RTMP_DEFAULT_STREAM_INDEX_NOTIFY,
0, RTMP_CONTENT_TYPE_INVOKE, RTMP_SRC_DST_DEFAULT, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
static uint8_t
rtmp_encode_header_size( vlc_object_t *p_this, uint8_t header_size )
{
if( header_size == 1 )
return RTMP_HEADER_SIZE_1;
else if( header_size == 4 )
return RTMP_HEADER_SIZE_4;
else if( header_size == 8 )
return RTMP_HEADER_SIZE_8;
else if( header_size == 12 )
return RTMP_HEADER_SIZE_12;
else
{
msg_Err( p_this, "invalid header size for encoding" );
return 0;
}
}
static uint8_t
rtmp_decode_header_size( vlc_object_t *p_this, uint8_t header_size )
{
if( header_size == RTMP_HEADER_SIZE_1 )
return 1;
else if( header_size == RTMP_HEADER_SIZE_4 )
return 4;
else if( header_size == RTMP_HEADER_SIZE_8 )
return 8;
else if( header_size == RTMP_HEADER_SIZE_12 )
return 12;
else
{
msg_Err( p_this, "invalid RTMP_HEADER_SIZE_XX " );
return 0;
}
}
static uint8_t
rtmp_get_stream_index( uint8_t content_type )
{
if( content_type == RTMP_CONTENT_TYPE_AUDIO_DATA )
return RTMP_DEFAULT_STREAM_INDEX_AUDIO_DATA;
else if( content_type == RTMP_CONTENT_TYPE_VIDEO_DATA )
return RTMP_DEFAULT_STREAM_INDEX_VIDEO_DATA;
else if( content_type == RTMP_CONTENT_TYPE_NOTIFY )
return RTMP_DEFAULT_STREAM_INDEX_NOTIFY;
else
return -1;
}
/*****************************************************************************
* Body handling implementation:
******************************************************************************/
rtmp_body_t *
rtmp_body_new( int length_buffer )
{
rtmp_body_t *rtmp_body;
rtmp_body = (rtmp_body_t *) malloc( sizeof( rtmp_body_t ) );
if( !rtmp_body ) return NULL;
rtmp_body->length_body = 0;
if( length_buffer < 0 )
rtmp_body->length_buffer = RTMP_BODY_SIZE_ALLOC;
else
rtmp_body->length_buffer = length_buffer;
rtmp_body->body = (uint8_t *) malloc( rtmp_body->length_buffer * sizeof( uint8_t ) );
if( !rtmp_body->body )
{
free( rtmp_body );
return NULL;
}
return rtmp_body;
}
void
rtmp_body_reset( rtmp_body_t *rtmp_body )
{
rtmp_body->length_body = 0;
}
static void
rtmp_body_append( rtmp_body_t *rtmp_body, uint8_t *buffer, uint32_t length )
{
if( rtmp_body->length_body + length > rtmp_body->length_buffer )
{
uint8_t *tmp;
rtmp_body->length_buffer = rtmp_body->length_body + length;
tmp = realloc( rtmp_body->body,
rtmp_body->length_buffer * sizeof( uint8_t ) );
if( !tmp ) return;
rtmp_body->body = tmp;
}
memcpy( rtmp_body->body + rtmp_body->length_body, buffer, length );
rtmp_body->length_body += length;
}
/*****************************************************************************
* RTMP ping implementation:
******************************************************************************/
static uint8_t *
rtmp_encode_ping( uint16_t type, uint32_t src_dst, uint32_t third_arg, uint32_t fourth_arg )
{
uint8_t *out = NULL;
VLC_UNUSED(fourth_arg);
if( type == RTMP_PING_CLEAR_STREAM )
out = (uint8_t *) malloc( RTMP_PING_SIZE_CLEAR_STREAM * sizeof( uint8_t ) );
else if( type == RTMP_PING_CLEAR_PLAYING_BUFFER )
out = (uint8_t *) malloc( RTMP_PING_SIZE_CLEAR_PLAYING_BUFFER * sizeof( uint8_t ) );
else if( type == RTMP_PING_BUFFER_TIME_CLIENT )
{
out = (uint8_t *) malloc( RTMP_PING_SIZE_BUFFER_TIME_CLIENT * sizeof( uint8_t ) );
if( !out ) goto error;
third_arg = hton32( third_arg );
memcpy( out + 6, &third_arg, sizeof( uint32_t ) );
}
else if( type == RTMP_PING_RESET_STREAM )
{
out = (uint8_t *) malloc( RTMP_PING_SIZE_RESET_STREAM * sizeof( uint8_t ) );
}
/* else if( type == RTMP_PING_CLIENT_FROM_SERVER ) TODO: research this
{
}
else if( type == RTMP_PING_PONG_FROM_CLIENT )
{
}
*/ else
{
out = (uint8_t *) malloc( RTMP_PING_SIZE_BUFFER_TIME_CLIENT * sizeof( uint8_t ) );
if( !out ) goto error;
out[6] = 0x0D; out[7] = 0x0E; out[8] = 0x0A; out[9] = 0x0D;
}
if( !out ) goto error;
type = hton16( type );
memcpy( out, &type, sizeof( uint16_t ) );
src_dst = hton32( src_dst );
memcpy( out + 2, &src_dst, sizeof( uint32_t ) );
return out;
error:
return NULL;
}
/*****************************************************************************
* AMF implementation:
******************************************************************************/
static uint8_t *
amf_encode_element( uint8_t element, const void *value )
{
uint8_t *out;
if ( element == AMF_DATATYPE_NUMBER )
{
uint64_t number = *(uint64_t *) value;
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_NUMBER * sizeof( uint8_t ) );
if( !out ) return NULL;
number = hton64( number );
out[0] = AMF_DATATYPE_NUMBER;
memcpy( out + 1, &number, sizeof( uint64_t ) );
} else if ( element == AMF_DATATYPE_BOOLEAN )
{
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_BOOLEAN * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_BOOLEAN;
out[1] = *(uint8_t *) value;
} else if ( element == AMF_DATATYPE_STRING )
{
uint16_t length_psz, length_psz_cpy;
length_psz = length_psz_cpy = strlen( (char *) value );
out = (uint8_t *) malloc( ( AMF_DATATYPE_SIZE_STRING + length_psz ) * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_STRING;
length_psz = hton16( length_psz );
memcpy( out + 1, &length_psz, sizeof( uint16_t ) );
memcpy( out + 3, value, length_psz_cpy );
} else if ( element == AMF_DATATYPE_OBJECT )
{
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_OBJECT * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_OBJECT;
} else if ( element == AMF_DATATYPE_NULL )
{
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_NULL * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_NULL;
} else if ( element == AMF_DATATYPE_MIXED_ARRAY )
{
uint32_t highest_index = *(uint32_t *) value;
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_MIXED_ARRAY * sizeof( uint8_t ) );
if( !out ) return NULL;
highest_index = hton32( highest_index );
out[0] = AMF_DATATYPE_MIXED_ARRAY;
memcpy( out + 1, &highest_index, sizeof( uint32_t ) );
} else if ( element == AMF_DATATYPE_END_OF_OBJECT )
{
out = (uint8_t *) calloc( AMF_DATATYPE_SIZE_END_OF_OBJECT, sizeof( uint8_t ) );
out[AMF_DATATYPE_SIZE_END_OF_OBJECT - 1] = AMF_DATATYPE_END_OF_OBJECT;
} else
{
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_NUMBER * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_NUMBER;
out[1] = 0x0D; out[2] = 0x0E; out[3] = 0x0A; out[4] = 0x0D;
out[5] = 0x0B; out[6] = 0x0E; out[7] = 0x0E; out[8] = 0x0F;
}
return out;
}
static uint8_t *
amf_encode_object_variable( const char *key, uint8_t element, const void *value )
{
uint8_t *out, *out_value;
int length_value;
uint16_t length_psz, length_psz_cpy;
length_psz = length_psz_cpy = strlen( key );
if( element == AMF_DATATYPE_NUMBER )
length_value = AMF_DATATYPE_SIZE_NUMBER;
else if( element == AMF_DATATYPE_BOOLEAN )
length_value = AMF_DATATYPE_SIZE_BOOLEAN;
else if( element == AMF_DATATYPE_STRING )
length_value = AMF_DATATYPE_SIZE_STRING + strlen( (char *) value );
else if( element == AMF_DATATYPE_NULL )
length_value = AMF_DATATYPE_SIZE_NULL;
else
{
out = (uint8_t *) malloc( AMF_DATATYPE_SIZE_NUMBER * sizeof( uint8_t ) );
if( !out ) return NULL;
out[0] = AMF_DATATYPE_NUMBER;
out[1] = 0xD; out[2] = 0xE; out[3] = 0xA; out[4] = 0xD;
out[5] = 0xB; out[6] = 0xE; out[7] = 0xE; out[8] = 0xF;
return out;
}
out = (uint8_t *) malloc( ( AMF_DATATYPE_SIZE_OBJECT_VARIABLE + length_psz + length_value ) * sizeof( uint8_t ) );
if( !out ) return NULL;
length_psz = hton16( length_psz );
memcpy( out, &length_psz, sizeof( uint16_t ) );
memcpy( out + 2, key, length_psz_cpy );
out_value = amf_encode_element( element, value );
memcpy( out + 2 + length_psz_cpy, out_value, length_value );
free( out_value );
return out;
}
static double
amf_decode_number( uint8_t **buffer )
{
uint64_t number;
double out;
number = ntoh64( *(uint64_t *) *buffer );
memcpy(&out, &number, sizeof( uint64_t ) );
*buffer += sizeof( uint64_t );
return out;
}
static int
amf_decode_boolean( uint8_t **buffer )
{
int out;
out = **buffer;
*buffer += 1;
return out;
}
/* return value allocated dinamically */
static char *
amf_decode_string( uint8_t **buffer )
{
char *out;
int length;
int i;
length = ntoh16( *(uint16_t *) *buffer );
*buffer += sizeof( uint16_t );
out = (char *) malloc( length + 1 ); /* '\0' terminated */
if( !out ) return NULL;
for(i = 0; i < length; i++)
out[i] = (*buffer)[i];
*buffer += length;
out[i] = '\0';
return out;
}
/* returns in each call next key, at end of object returns NULL */
/* need to decode value of key after call */
static char *
amf_decode_object( uint8_t **buffer )
{
if( **buffer == 0x0 && *(*buffer + 1) == 0x00 && *(*buffer + 2) == 0x09)
{
*buffer += 3;
return NULL;
}
else
return amf_decode_string( buffer );
}
/*****************************************************************************
* FLV rebuilding implementation:
******************************************************************************/
static void
flv_rebuild( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet )
{
uint32_t length_tag, timestamp;
uint8_t *tmp;
tmp = (uint8_t *) realloc( rtmp_packet->body->body,
rtmp_packet->body->length_body +
FLV_TAG_PREVIOUS_TAG_SIZE + FLV_TAG_SIZE );
if( !tmp ) return;
rtmp_packet->body->body = tmp;
memmove( rtmp_packet->body->body + FLV_TAG_PREVIOUS_TAG_SIZE + FLV_TAG_SIZE,
rtmp_packet->body->body, rtmp_packet->body->length_body );
/* Insert tag */
p_thread->flv_tag_previous_tag_size = hton32( p_thread->flv_tag_previous_tag_size );
memcpy( rtmp_packet->body->body, &p_thread->flv_tag_previous_tag_size, sizeof( uint32_t ) );
/* Fill backwards because of overlapping*/
rtmp_packet->body->body[11] = 0x00;
timestamp = hton32( rtmp_packet->timestamp );
memcpy( rtmp_packet->body->body + 7, ×tamp, sizeof( uint32_t ) );
length_tag = hton32( rtmp_packet->body->length_body );
memcpy( rtmp_packet->body->body + 4, &length_tag, sizeof( uint32_t ) );
rtmp_packet->body->body[4] = rtmp_packet->content_type;
rtmp_packet->body->body[12] = 0x00;
rtmp_packet->body->body[13] = 0x00;
rtmp_packet->body->body[14] = 0x00;
p_thread->flv_tag_previous_tag_size = rtmp_packet->body->length_body + FLV_TAG_SIZE;
/* Update size */
rtmp_packet->body->length_body += FLV_TAG_PREVIOUS_TAG_SIZE + FLV_TAG_SIZE;
rtmp_packet->body->length_buffer = rtmp_packet->body->length_body;
}
static void
flv_get_metadata_audio( rtmp_control_thread_t *p_thread, rtmp_packet_t *packet_audio, uint8_t *stereo, uint8_t *audiosamplesize, uint32_t *audiosamplerate, uint8_t *audiocodecid )
{
uint8_t data_audio;
data_audio = *packet_audio->body->body;
if( ( data_audio & FLV_AUDIO_STEREO_MASK ) == FLV_AUDIO_STEREO_MONO )
*stereo = FLV_AUDIO_STEREO_MONO;
else if( ( data_audio & FLV_AUDIO_STEREO_MASK ) == FLV_AUDIO_STEREO_STEREO )
*stereo = FLV_AUDIO_STEREO_STEREO;
else
msg_Warn( p_thread, "unknown metadata audio stereo" );
if( ( data_audio & FLV_AUDIO_SIZE_MASK ) == FLV_AUDIO_SIZE_8_BIT )
*audiosamplesize = FLV_AUDIO_SIZE_8_BIT >> 1;
else if( ( data_audio & FLV_AUDIO_SIZE_MASK ) == FLV_AUDIO_SIZE_16_BIT )
*audiosamplesize = FLV_AUDIO_SIZE_16_BIT >> 1;
else
msg_Warn( p_thread, "unknown metadata audio sample size" );
if( ( data_audio & FLV_AUDIO_RATE_MASK ) == FLV_AUDIO_RATE_5_5_KHZ )
*audiosamplerate = 5512;
else if( ( data_audio & FLV_AUDIO_RATE_MASK ) == FLV_AUDIO_RATE_11_KHZ )
*audiosamplerate = 11025;
else if( ( data_audio & FLV_AUDIO_RATE_MASK ) == FLV_AUDIO_RATE_22_KHZ )
*audiosamplerate = 22050;
else if( ( data_audio & FLV_AUDIO_RATE_MASK ) == FLV_AUDIO_RATE_44_KHZ )
*audiosamplerate = 44100;
else
msg_Warn( p_thread, "unknown metadata audio sample rate" );
if( ( data_audio & FLV_AUDIO_CODEC_ID_MASK ) == FLV_AUDIO_CODEC_ID_UNCOMPRESSED )
*audiocodecid = FLV_AUDIO_CODEC_ID_UNCOMPRESSED >> 4;
else if( ( data_audio & FLV_AUDIO_CODEC_ID_MASK ) == FLV_AUDIO_CODEC_ID_ADPCM )
*audiocodecid = FLV_AUDIO_CODEC_ID_ADPCM >> 4;
else if( ( data_audio & FLV_AUDIO_CODEC_ID_MASK ) == FLV_AUDIO_CODEC_ID_MP3 )
*audiocodecid = FLV_AUDIO_CODEC_ID_MP3 >> 4;
else if( ( data_audio & FLV_AUDIO_CODEC_ID_MASK ) == FLV_AUDIO_CODEC_ID_NELLYMOSER_8KHZ_MONO )
*audiocodecid = FLV_AUDIO_CODEC_ID_NELLYMOSER_8KHZ_MONO >> 4;
else if( ( data_audio & FLV_AUDIO_CODEC_ID_MASK ) == FLV_AUDIO_CODEC_ID_NELLYMOSER )
*audiocodecid = FLV_AUDIO_CODEC_ID_NELLYMOSER >> 4;
else
msg_Warn( p_thread, "unknown metadata audio codec id" );
}
static void
flv_get_metadata_video( rtmp_control_thread_t *p_thread, rtmp_packet_t *packet_video, uint8_t *videocodecid, uint8_t *frametype )
{
uint8_t data_video;
data_video = *packet_video->body->body;
if( ( data_video & FLV_VIDEO_CODEC_ID_MASK ) == FLV_VIDEO_CODEC_ID_SORENSEN_H263 )
*videocodecid = FLV_VIDEO_CODEC_ID_SORENSEN_H263;
else if( ( data_video & FLV_VIDEO_CODEC_ID_MASK ) == FLV_VIDEO_CODEC_ID_SCREEN_VIDEO )
*videocodecid = FLV_VIDEO_CODEC_ID_SCREEN_VIDEO;
else if( ( data_video & FLV_VIDEO_CODEC_ID_MASK ) == FLV_VIDEO_CODEC_ID_ON2_VP6 )
*videocodecid = FLV_VIDEO_CODEC_ID_ON2_VP6;
else if( ( data_video & FLV_VIDEO_CODEC_ID_MASK ) == FLV_VIDEO_CODEC_ID_ON2_VP6_ALPHA )
*videocodecid = FLV_VIDEO_CODEC_ID_ON2_VP6_ALPHA;
else if( ( data_video & FLV_VIDEO_CODEC_ID_MASK ) == FLV_VIDEO_CODEC_ID_SCREEN_VIDEO_2 )
*videocodecid = FLV_VIDEO_CODEC_ID_SCREEN_VIDEO_2;
else
msg_Warn( p_thread, "unknown metadata video codec id" );
if( ( data_video & FLV_VIDEO_FRAME_TYPE_MASK ) == FLV_VIDEO_FRAME_TYPE_KEYFRAME )
*frametype = FLV_VIDEO_FRAME_TYPE_KEYFRAME >> 4;
else if( ( data_video & FLV_VIDEO_FRAME_TYPE_MASK ) == FLV_VIDEO_FRAME_TYPE_INTER_FRAME )
*frametype = FLV_VIDEO_FRAME_TYPE_INTER_FRAME >> 4;
else if( ( data_video & FLV_VIDEO_FRAME_TYPE_MASK ) == FLV_VIDEO_FRAME_TYPE_DISPOSABLE_INTER_FRAME )
*frametype = FLV_VIDEO_FRAME_TYPE_DISPOSABLE_INTER_FRAME >> 4;
else
msg_Warn( p_thread, "unknown metadata video frame type" );
}
static rtmp_packet_t *
flv_build_onMetaData( access_t *p_access, uint64_t duration, uint8_t stereo, uint8_t audiosamplesize, uint32_t audiosamplerate, uint8_t audiocodecid, uint8_t videocodecid )
{
rtmp_packet_t *rtmp_packet;
rtmp_body_t *rtmp_body;
uint8_t *tmp_buffer;
double number;
rtmp_body = rtmp_body_new( -1 );
tmp_buffer = amf_encode_element( AMF_DATATYPE_STRING, "onMetaData" );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_STRING + strlen( "onMetaData" ) );
free( tmp_buffer );
number = 0;
tmp_buffer = amf_encode_element( AMF_DATATYPE_MIXED_ARRAY, &number );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_MIXED_ARRAY );
free( tmp_buffer );
number = duration;
tmp_buffer = amf_encode_object_variable( "duration",
AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "duration" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_object_variable( "stereo",
AMF_DATATYPE_BOOLEAN, &stereo );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "stereo" ) +
AMF_DATATYPE_SIZE_BOOLEAN );
free( tmp_buffer );
number = audiosamplesize;
tmp_buffer = amf_encode_object_variable( "audiosamplesize",
AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "audiosamplesize" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
number = audiosamplerate;
tmp_buffer = amf_encode_object_variable( "audiosamplerate",
AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "audiosamplerate" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
number = audiocodecid;
tmp_buffer = amf_encode_object_variable( "audiocodecid",
AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "audiocodecid" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
number = videocodecid;
tmp_buffer = amf_encode_object_variable( "videocodecid",
AMF_DATATYPE_NUMBER, &number );
rtmp_body_append( rtmp_body, tmp_buffer,
AMF_DATATYPE_SIZE_OBJECT_VARIABLE + strlen( "videocodecid" ) +
AMF_DATATYPE_SIZE_NUMBER );
free( tmp_buffer );
tmp_buffer = amf_encode_element( AMF_DATATYPE_END_OF_OBJECT, NULL );
rtmp_body_append( rtmp_body, tmp_buffer, AMF_DATATYPE_SIZE_END_OF_OBJECT );
free( tmp_buffer );
rtmp_packet = rtmp_new_packet( p_access->p_sys->p_thread, RTMP_DEFAULT_STREAM_INDEX_INVOKE,
0, RTMP_CONTENT_TYPE_NOTIFY, 0, rtmp_body );
free( rtmp_body->body );
free( rtmp_body );
return rtmp_packet;
}
block_t *
flv_get_metadata( access_t *p_access )
{
access_sys_t *p_sys = p_access->p_sys;
rtmp_packet_t *flv_metadata_packet;
block_t *p_buffer;
flv_metadata_packet = flv_build_onMetaData( p_access, 0, p_sys->p_thread->metadata_stereo,
p_sys->p_thread->metadata_samplesize, p_sys->p_thread->metadata_samplerate,
p_sys->p_thread->metadata_audiocodecid, p_sys->p_thread->metadata_videocodecid );
flv_rebuild( p_sys->p_thread, flv_metadata_packet );
p_buffer = rtmp_new_block( p_sys->p_thread, flv_metadata_packet->body->body, flv_metadata_packet->body->length_buffer );
free( flv_metadata_packet->body->body );
free( flv_metadata_packet->body );
free( flv_metadata_packet );
return p_buffer;
}
block_t *
flv_insert_header( access_t *p_access, block_t *first_packet )
{
access_sys_t *p_sys = p_access->p_sys;
int old_buffer_size;
uint32_t tmp_number;
old_buffer_size = first_packet->i_buffer;
first_packet = block_Realloc( first_packet, 0, first_packet->i_buffer + FLV_HEADER_SIZE );
memmove( first_packet->p_buffer + FLV_HEADER_SIZE,
first_packet->p_buffer, old_buffer_size );
memcpy( first_packet->p_buffer, FLV_HEADER_SIGNATURE, sizeof( FLV_HEADER_SIGNATURE ) );
first_packet->p_buffer[3] = FLV_HEADER_VERSION;
if( p_sys->p_thread->has_audio && p_sys->p_thread->has_video )
first_packet->p_buffer[4] = FLV_HEADER_AUDIO | FLV_HEADER_VIDEO;
else if( p_sys->p_thread->has_audio )
first_packet->p_buffer[4] = FLV_HEADER_AUDIO;
else
first_packet->p_buffer[4] = FLV_HEADER_VIDEO;
tmp_number = hton32( FLV_HEADER_SIZE );
memcpy( first_packet->p_buffer + 5, &tmp_number, sizeof( uint32_t ) );
return first_packet;
}
