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https://code.videolan.org/videolan/vlc
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147 lines
4.9 KiB
C
147 lines
4.9 KiB
C
/*****************************************************************************
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* rtmp_amf_flv.h: RTMP, AMF and FLV over RTMP implementation.
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*****************************************************************************
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* Copyright (C) URJC - LADyR - Luis Lopez Fernandez
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*
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* Author: Miguel Angel Cabrera Moya
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Local prototypes (continued from access.c)
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*****************************************************************************/
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typedef struct rtmp_packet_t rtmp_packet_t;
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typedef struct rtmp_body_t rtmp_body_t;
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typedef struct rtmp_control_thread_t rtmp_control_thread_t;
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typedef void (*rtmp_handler_t)( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
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struct rtmp_packet_t
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{
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int length_header;
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int stream_index;
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uint32_t timestamp;
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uint32_t timestamp_relative;
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int32_t length_encoded;
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int32_t length_body;
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uint8_t content_type;
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uint32_t src_dst;
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rtmp_body_t *body;
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};
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struct rtmp_body_t
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{
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int32_t length_body; /* without interchunk headers */
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int32_t length_buffer;
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uint8_t *body;
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};
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struct rtmp_control_thread_t
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{
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VLC_COMMON_MEMBERS
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int fd;
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vlc_url_t url;
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char *psz_application;
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char *psz_media;
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block_fifo_t *p_fifo_input;
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block_fifo_t *p_empty_blocks;
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vlc_mutex_t lock;
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vlc_cond_t wait;
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int result_connect;
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int result_publish;
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int result_play;
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int result_stop;
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double stream_client_id;
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double stream_server_id;
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char *psz_publish;
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/* Rebuild FLV variables (access) */
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int has_audio;
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int has_video;
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int metadata_received;
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uint8_t metadata_stereo;
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uint8_t metadata_samplesize;
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uint32_t metadata_samplerate;
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uint8_t metadata_audiocodecid;
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uint8_t metadata_videocodecid;
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uint8_t metadata_frametype;
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int first_media_packet;
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uint32_t flv_tag_previous_tag_size;
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/* Vars for rebuilding FLV (access_output) */
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rtmp_body_t *flv_body;
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uint8_t flv_content_type;
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uint32_t flv_length_body;
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uint32_t flv_timestamp;
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/* vars for channel state */
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uint32_t chunk_size_recv;
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uint32_t chunk_size_send;
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rtmp_packet_t rtmp_headers_recv[64]; /* RTMP_HEADER_STREAM_MAX */
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rtmp_packet_t rtmp_headers_send[64];
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rtmp_handler_t rtmp_handler[21]; /* index by RTMP_CONTENT_TYPE */
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/* Pointer to base module object (later needs to casted) */
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void *p_base_object;
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};
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struct access_sys_t
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{
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int active;
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/* vars for reading from fifo */
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block_t *flv_packet;
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int read_packet;
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/* thread for filtering and handling control messages */
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rtmp_control_thread_t *p_thread;
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};
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/*****************************************************************************
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* RTMP header:
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******************************************************************************/
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int rtmp_handshake_active( vlc_object_t *p_this, int fd );
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int rtmp_handshake_passive( vlc_object_t *p_this, int fd );
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int rtmp_connect_active( rtmp_control_thread_t *p_thread );
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int rtmp_connect_passive( rtmp_control_thread_t *p_thread );
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//int rtmp_seek( access_t *p_access, int64_t i_pos ); TODO
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//
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rtmp_packet_t *rtmp_build_bytes_read( rtmp_control_thread_t *p_thread, uint32_t reply );
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rtmp_packet_t *rtmp_build_publish_start( rtmp_control_thread_t *p_thread );
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rtmp_packet_t *rtmp_build_flv_over_rtmp( rtmp_control_thread_t *p_thread, block_t *p_buffer );
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rtmp_packet_t *rtmp_read_net_packet( rtmp_control_thread_t *p_thread );
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uint8_t *rtmp_encode_packet( rtmp_control_thread_t *p_thread, rtmp_packet_t *rtmp_packet );
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void rtmp_init_handler( rtmp_handler_t *rtmp_handler );
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/*****************************************************************************
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* FLV header:
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******************************************************************************/
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block_t *flv_get_metadata( access_t *p_access );
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block_t *flv_insert_header( access_t *p_access, block_t *first_packet );
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/*****************************************************************************
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* RTMP body header:
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******************************************************************************/
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rtmp_body_t *rtmp_body_new( int length_buffer );
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void rtmp_body_reset( rtmp_body_t * );
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