libavformat/mmst.c File Reference

#include "avformat.h"
#include "mms.h"
#include "internal.h"
#include "avio_internal.h"
#include "libavutil/intreadwrite.h"
#include "libavcodec/bytestream.h"
#include "network.h"
#include "url.h"

Go to the source code of this file.

Data Structures

struct MMSTContext

Defines

#define LOCAL_ADDRESS   0xc0a80081

#define LOCAL_PORT   1037

Enumerations

enum MMSCSPacketType {
  CS_PKT_INITIAL = 0x01, CS_PKT_PROTOCOL_SELECT = 0x02, CS_PKT_MEDIA_FILE_REQUEST = 0x05, CS_PKT_START_FROM_PKT_ID = 0x07,
  CS_PKT_STREAM_PAUSE = 0x09, CS_PKT_STREAM_CLOSE = 0x0d, CS_PKT_MEDIA_HEADER_REQUEST = 0x15, CS_PKT_TIMING_DATA_REQUEST = 0x18,
  CS_PKT_USER_PASSWORD = 0x1a, CS_PKT_KEEPALIVE = 0x1b, CS_PKT_STREAM_ID_REQUEST = 0x33
}

Client to server packet types. More...

enum MMSSCPacketType {
  SC_PKT_CLIENT_ACCEPTED = 0x01, SC_PKT_PROTOCOL_ACCEPTED = 0x02, SC_PKT_PROTOCOL_FAILED = 0x03, SC_PKT_MEDIA_PKT_FOLLOWS = 0x05,
  SC_PKT_MEDIA_FILE_DETAILS = 0x06, SC_PKT_HEADER_REQUEST_ACCEPTED = 0x11, SC_PKT_TIMING_TEST_REPLY = 0x15, SC_PKT_PASSWORD_REQUIRED = 0x1a,
  SC_PKT_KEEPALIVE = 0x1b, SC_PKT_STREAM_STOPPED = 0x1e, SC_PKT_STREAM_CHANGING = 0x20, SC_PKT_STREAM_ID_ACCEPTED = 0x21,
  SC_PKT_CANCEL = -1, SC_PKT_NO_DATA = -2, SC_PKT_ASF_HEADER = 0x010000, SC_PKT_ASF_MEDIA = 0x010001
}

Server to client packet types. More...

Functions

static void start_command_packet (MMSTContext *mmst, MMSCSPacketType packet_type)

Create MMST command packet header.

static void insert_command_prefixes (MMSContext *mms, uint32_t prefix1, uint32_t prefix2)

Add prefixes to MMST command packet.

static int send_command_packet (MMSTContext *mmst)

Send a prepared MMST command packet.

static void mms_put_utf16 (MMSContext *mms, const uint8_t *src)

static int send_time_test_data (MMSTContext *mmst)

static int send_protocol_select (MMSTContext *mmst)

static int send_media_file_request (MMSTContext *mmst)

static void handle_packet_stream_changing_type (MMSTContext *mmst)

static int send_keepalive_packet (MMSTContext *mmst)

static void pad_media_packet (MMSContext *mms)

Pad media packets smaller than max_packet_size and/or adjust read position after a seek.

static MMSSCPacketType get_tcp_server_response (MMSTContext *mmst)

Read incoming MMST media, header or command packet.

static int mms_safe_send_recv (MMSTContext *mmst, int(*send_fun)(MMSTContext *mmst), const MMSSCPacketType expect_type)

static int send_media_header_request (MMSTContext *mmst)

static int send_startup_packet (MMSTContext *mmst)

Send the initial handshake.

static int send_stream_selection_request (MMSTContext *mmst)

Send MMST stream selection command based on the AVStream->discard values.

static int send_close_packet (MMSTContext *mmst)

static int mms_close (URLContext *h)

Close the MMSH/MMST connection.

static int send_media_packet_request (MMSTContext *mmst)

static void clear_stream_buffers (MMSContext *mms)

static int mms_open (URLContext *h, const char *uri, int flags)

static int mms_read (URLContext *h, uint8_t *buf, int size)

Read ASF data through the protocol.

Variables

URLProtocol ff_mmst_protocol

Define Documentation

#define LOCAL_ADDRESS 0xc0a80081

Definition at line 40 of file mmst.c.

Referenced by send_protocol_select().

#define LOCAL_PORT 1037

Definition at line 41 of file mmst.c.

Referenced by send_protocol_select().

Enumeration Type Documentation

enum MMSCSPacketType

Client to server packet types.

Enumerator:

CS_PKT_INITIAL
CS_PKT_PROTOCOL_SELECT
CS_PKT_MEDIA_FILE_REQUEST
CS_PKT_START_FROM_PKT_ID
CS_PKT_STREAM_PAUSE
CS_PKT_STREAM_CLOSE
CS_PKT_MEDIA_HEADER_REQUEST
CS_PKT_TIMING_DATA_REQUEST
CS_PKT_USER_PASSWORD
CS_PKT_KEEPALIVE
CS_PKT_STREAM_ID_REQUEST

Definition at line 43 of file mmst.c.

enum MMSSCPacketType

Server to client packet types.

Enumerator:

SC_PKT_CLIENT_ACCEPTED	Control packets.
SC_PKT_PROTOCOL_ACCEPTED
SC_PKT_PROTOCOL_FAILED
SC_PKT_MEDIA_PKT_FOLLOWS
SC_PKT_MEDIA_FILE_DETAILS
SC_PKT_HEADER_REQUEST_ACCEPTED
SC_PKT_TIMING_TEST_REPLY
SC_PKT_PASSWORD_REQUIRED
SC_PKT_KEEPALIVE
SC_PKT_STREAM_STOPPED
SC_PKT_STREAM_CHANGING
SC_PKT_STREAM_ID_ACCEPTED
SC_PKT_CANCEL	Pseudo packets.
SC_PKT_NO_DATA
SC_PKT_ASF_HEADER	Data packets.
SC_PKT_ASF_MEDIA

Definition at line 58 of file mmst.c.

Function Documentation

static void clear_stream_buffers ( MMSContext * mms ) [static]

Definition at line 497 of file mmst.c.

Referenced by mms_open().

static MMSSCPacketType get_tcp_server_response ( MMSTContext * mmst ) [static]

Read incoming MMST media, header or command packet.

Definition at line 238 of file mmst.c.

Referenced by mms_safe_send_recv().

static void handle_packet_stream_changing_type ( MMSTContext * mmst ) [static]

Definition at line 208 of file mmst.c.

Referenced by get_tcp_server_response().

static void insert_command_prefixes	(	MMSContext *	mms,
		uint32_t	prefix1,
		uint32_t	prefix2
	)			`[static]`

Add prefixes to MMST command packet.

Definition at line 118 of file mmst.c.

Referenced by send_close_packet(), send_keepalive_packet(), send_media_file_request(), send_media_header_request(), send_media_packet_request(), send_protocol_select(), send_startup_packet(), and send_time_test_data().

static int mms_close ( URLContext * h ) [static]

Close the MMSH/MMST connection.

Definition at line 461 of file mmst.c.

Referenced by mms_open().

static int mms_open	(	URLContext *	h,
		const char *	uri,
		int	flags
	)			`[static]`

Definition at line 503 of file mmst.c.

static void mms_put_utf16	(	MMSContext *	mms,
		const uint8_t *	src
	)			`[static]`

Definition at line 155 of file mmst.c.

Referenced by send_media_file_request(), send_protocol_select(), and send_startup_packet().

static int mms_read	(	URLContext *	h,
		uint8_t *	buf,
		int	size
	)			`[static]`

Read ASF data through the protocol.

Definition at line 584 of file mmst.c.

static int mms_safe_send_recv	(	MMSTContext *	mmst,
		int()(MMSTContext mmst)	send_fun,
		const MMSSCPacketType	expect_type
	)			`[static]`

Definition at line 372 of file mmst.c.

Referenced by mms_open(), and mms_read().

static void pad_media_packet ( MMSContext * mms ) [static]

Pad media packets smaller than max_packet_size and/or adjust read position after a seek.

Definition at line 228 of file mmst.c.

Referenced by get_tcp_server_response().

static int send_close_packet ( MMSTContext * mmst ) [static]

Definition at line 452 of file mmst.c.

Referenced by mms_close().

static int send_command_packet ( MMSTContext * mmst ) [static]

Send a prepared MMST command packet.

Definition at line 126 of file mmst.c.

Referenced by send_close_packet(), send_keepalive_packet(), send_media_file_request(), send_media_header_request(), send_media_packet_request(), send_protocol_select(), send_startup_packet(), send_stream_selection_request(), and send_time_test_data().

static int send_keepalive_packet ( MMSTContext * mmst ) [static]

Definition at line 218 of file mmst.c.

Referenced by get_tcp_server_response().

static int send_media_file_request ( MMSTContext * mmst ) [static]

Definition at line 196 of file mmst.c.

Referenced by mms_open().

static int send_media_header_request ( MMSTContext * mmst ) [static]

Definition at line 395 of file mmst.c.

Referenced by mms_open().

static int send_media_packet_request ( MMSTContext * mmst ) [static]

Definition at line 478 of file mmst.c.

Referenced by mms_open().

static int send_protocol_select ( MMSTContext * mmst ) [static]

Definition at line 174 of file mmst.c.

Referenced by mms_open().

static int send_startup_packet ( MMSTContext * mmst ) [static]

Send the initial handshake.

Definition at line 417 of file mmst.c.

Referenced by mms_open().

static int send_stream_selection_request ( MMSTContext * mmst ) [static]

Send MMST stream selection command based on the AVStream->discard values.

Definition at line 437 of file mmst.c.

Referenced by mms_open().

static int send_time_test_data ( MMSTContext * mmst ) [static]

Definition at line 167 of file mmst.c.

Referenced by mms_open().

static void start_command_packet	(	MMSTContext *	mmst,
		MMSCSPacketType	packet_type
	)			`[static]`

Create MMST command packet header.

Definition at line 100 of file mmst.c.

Referenced by send_close_packet(), send_keepalive_packet(), send_media_file_request(), send_media_header_request(), send_media_packet_request(), send_protocol_select(), send_startup_packet(), send_stream_selection_request(), and send_time_test_data().

Variable Documentation

URLProtocol ff_mmst_protocol

Initial value:

 {
    .name      = "mmst",
    .url_open  = mms_open,
    .url_read  = mms_read,
    .url_close = mms_close,
}

Definition at line 625 of file mmst.c.


Data Structures
struct	MMSTContext
Defines
#define	LOCAL_ADDRESS 0xc0a80081
#define	LOCAL_PORT 1037
Enumerations
enum	MMSCSPacketType { CS_PKT_INITIAL = 0x01, CS_PKT_PROTOCOL_SELECT = 0x02, CS_PKT_MEDIA_FILE_REQUEST = 0x05, CS_PKT_START_FROM_PKT_ID = 0x07, CS_PKT_STREAM_PAUSE = 0x09, CS_PKT_STREAM_CLOSE = 0x0d, CS_PKT_MEDIA_HEADER_REQUEST = 0x15, CS_PKT_TIMING_DATA_REQUEST = 0x18, CS_PKT_USER_PASSWORD = 0x1a, CS_PKT_KEEPALIVE = 0x1b, CS_PKT_STREAM_ID_REQUEST = 0x33 }
	Client to server packet types. More...
enum	MMSSCPacketType { SC_PKT_CLIENT_ACCEPTED = 0x01, SC_PKT_PROTOCOL_ACCEPTED = 0x02, SC_PKT_PROTOCOL_FAILED = 0x03, SC_PKT_MEDIA_PKT_FOLLOWS = 0x05, SC_PKT_MEDIA_FILE_DETAILS = 0x06, SC_PKT_HEADER_REQUEST_ACCEPTED = 0x11, SC_PKT_TIMING_TEST_REPLY = 0x15, SC_PKT_PASSWORD_REQUIRED = 0x1a, SC_PKT_KEEPALIVE = 0x1b, SC_PKT_STREAM_STOPPED = 0x1e, SC_PKT_STREAM_CHANGING = 0x20, SC_PKT_STREAM_ID_ACCEPTED = 0x21, SC_PKT_CANCEL = -1, SC_PKT_NO_DATA = -2, SC_PKT_ASF_HEADER = 0x010000, SC_PKT_ASF_MEDIA = 0x010001 }
	Server to client packet types. More...
Functions
static void	start_command_packet (MMSTContext *mmst, MMSCSPacketType packet_type)
	Create MMST command packet header.
static void	insert_command_prefixes (MMSContext *mms, uint32_t prefix1, uint32_t prefix2)
	Add prefixes to MMST command packet.
static int	send_command_packet (MMSTContext *mmst)
	Send a prepared MMST command packet.
static void	mms_put_utf16 (MMSContext mms, const uint8_t src)
static int	send_time_test_data (MMSTContext *mmst)
static int	send_protocol_select (MMSTContext *mmst)
static int	send_media_file_request (MMSTContext *mmst)
static void	handle_packet_stream_changing_type (MMSTContext *mmst)
static int	send_keepalive_packet (MMSTContext *mmst)
static void	pad_media_packet (MMSContext *mms)
	Pad media packets smaller than max_packet_size and/or adjust read position after a seek.
static MMSSCPacketType	get_tcp_server_response (MMSTContext *mmst)
	Read incoming MMST media, header or command packet.
static int	mms_safe_send_recv (MMSTContext mmst, int(send_fun)(MMSTContext *mmst), const MMSSCPacketType expect_type)
static int	send_media_header_request (MMSTContext *mmst)
static int	send_startup_packet (MMSTContext *mmst)
	Send the initial handshake.
static int	send_stream_selection_request (MMSTContext *mmst)
	Send MMST stream selection command based on the AVStream->discard values.
static int	send_close_packet (MMSTContext *mmst)
static int	mms_close (URLContext *h)
	Close the MMSH/MMST connection.
static int	send_media_packet_request (MMSTContext *mmst)
static void	clear_stream_buffers (MMSContext *mms)
static int	mms_open (URLContext h, const char uri, int flags)
static int	mms_read (URLContext h, uint8_t buf, int size)
	Read ASF data through the protocol.
Variables
URLProtocol	ff_mmst_protocol