FFmpeg
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#include "libavutil/mathematics.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/time.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "network.h"
#include "srtp.h"
#include "url.h"
#include "rtpdec.h"
#include "rtpdec_formats.h"
#include "internal.h"
Go to the source code of this file.
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#define | MIN_FEEDBACK_INTERVAL 200000 /* 200 ms in us */ |
#define | RTP_SEQ_MOD (1 << 16) |
Variables | |
static const RTPDynamicProtocolHandler | l24_dynamic_handler |
static const RTPDynamicProtocolHandler | gsm_dynamic_handler |
static const RTPDynamicProtocolHandler | realmedia_mp3_dynamic_handler |
static const RTPDynamicProtocolHandler | speex_dynamic_handler |
static const RTPDynamicProtocolHandler | opus_dynamic_handler |
static const RTPDynamicProtocolHandler | t140_dynamic_handler |
const RTPDynamicProtocolHandler | ff_rdt_video_handler |
const RTPDynamicProtocolHandler | ff_rdt_audio_handler |
const RTPDynamicProtocolHandler | ff_rdt_live_video_handler |
const RTPDynamicProtocolHandler | ff_rdt_live_audio_handler |
static const RTPDynamicProtocolHandler *const | rtp_dynamic_protocol_handler_list [] |
Definition at line 37 of file rtpdec.c.
Referenced by ff_rtp_send_rtcp_feedback().
#define RTP_SEQ_MOD (1 << 16) |
Definition at line 211 of file rtpdec.c.
Referenced by rtp_init_sequence(), and rtp_valid_packet_in_sequence().
const RTPDynamicProtocolHandler* ff_rtp_handler_iterate | ( | void ** | opaque | ) |
Iterate over all registered rtp dynamic protocol handlers.
opaque | a pointer where libavformat will store the iteration state. Must point to NULL to start the iteration. |
Definition at line 138 of file rtpdec.c.
Referenced by ff_rtp_handler_find_by_id(), and ff_rtp_handler_find_by_name().
const RTPDynamicProtocolHandler* ff_rtp_handler_find_by_name | ( | const char * | name, |
enum AVMediaType | codec_type | ||
) |
Find a registered rtp dynamic protocol handler with the specified name.
name | name of the requested rtp dynamic protocol handler |
Definition at line 149 of file rtpdec.c.
Referenced by get_sockaddr().
const RTPDynamicProtocolHandler* ff_rtp_handler_find_by_id | ( | int | id, |
enum AVMediaType | codec_type | ||
) |
Find a registered rtp dynamic protocol handler with a matching codec ID.
id | AVCodecID of the requested rtp dynamic protocol handler. |
Definition at line 163 of file rtpdec.c.
Referenced by get_sockaddr().
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Definition at line 176 of file rtpdec.c.
Referenced by rtp_parse_one_packet().
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Definition at line 213 of file rtpdec.c.
Referenced by ff_rtp_parse_open().
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Definition at line 224 of file rtpdec.c.
Referenced by rtp_valid_packet_in_sequence().
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Definition at line 238 of file rtpdec.c.
Referenced by rtp_parse_packet_internal().
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Definition at line 284 of file rtpdec.c.
Referenced by rtp_parse_one_packet().
int ff_rtp_check_and_send_back_rr | ( | RTPDemuxContext * | s, |
URLContext * | fd, | ||
AVIOContext * | avio, | ||
int | count | ||
) |
some rtp servers assume client is dead if they don't hear from them...
so we send a Receiver Report to the provided URLContext or AVIOContext (we don't have access to the rtcp handle from here)
Definition at line 302 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
void ff_rtp_send_punch_packets | ( | URLContext * | rtp_handle | ) |
Send a dummy packet on both port pairs to set up the connection state in potential NAT routers, so that we're able to receive packets.
Note, this only works if the NAT router doesn't remap ports. This isn't a standardized procedure, but it works in many cases in practice.
The same routine is used with RDT too, even if RDT doesn't use normal RTP packets otherwise.
Definition at line 405 of file rtpdec.c.
Referenced by rtsp_read_play().
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Definition at line 441 of file rtpdec.c.
Referenced by ff_rtp_send_rtcp_feedback().
int ff_rtp_send_rtcp_feedback | ( | RTPDemuxContext * | s, |
URLContext * | fd, | ||
AVIOContext * | avio | ||
) |
Definition at line 471 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
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Definition at line 535 of file rtpdec.c.
Referenced by ff_rtp_parse_open().
RTPDemuxContext* ff_rtp_parse_open | ( | AVFormatContext * | s1, |
AVStream * | st, | ||
int | payload_type, | ||
int | queue_size | ||
) |
open a new RTP parse context for stream 'st'.
'st' can be NULL for MPEG-2 TS streams.
Definition at line 576 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
void ff_rtp_parse_set_dynamic_protocol | ( | RTPDemuxContext * | s, |
PayloadContext * | ctx, | ||
const RTPDynamicProtocolHandler * | handler | ||
) |
Definition at line 623 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
void ff_rtp_parse_set_crypto | ( | RTPDemuxContext * | s, |
const char * | suite, | ||
const char * | params | ||
) |
Definition at line 630 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
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This was the second switch in rtp_parse packet.
Normalizes time, if required, sets stream_index, etc.
Definition at line 641 of file rtpdec.c.
Referenced by rtp_parse_one_packet(), and rtp_parse_packet_internal().
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Definition at line 676 of file rtpdec.c.
Referenced by rtp_parse_one_packet(), and rtp_parse_queued_packet().
void ff_rtp_reset_packet_queue | ( | RTPDemuxContext * | s | ) |
Definition at line 759 of file rtpdec.c.
Referenced by ff_rtp_parse_close(), and rtsp_read_play().
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Definition at line 772 of file rtpdec.c.
Referenced by rtp_parse_one_packet().
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Definition at line 799 of file rtpdec.c.
Referenced by ff_rtp_parse_packet(), and rtp_parse_queued_packet().
int64_t ff_rtp_queued_packet_time | ( | RTPDemuxContext * | s | ) |
Definition at line 804 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
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Definition at line 809 of file rtpdec.c.
Referenced by ff_rtp_parse_packet(), and rtp_parse_one_packet().
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Definition at line 831 of file rtpdec.c.
Referenced by ff_rtp_parse_packet().
int ff_rtp_parse_packet | ( | RTPDemuxContext * | s, |
AVPacket * | pkt, | ||
uint8_t ** | bufptr, | ||
int | len | ||
) |
Parse an RTP or RTCP packet directly sent as a buffer.
s | RTP parse context. |
pkt | returned packet |
bufptr | pointer to the input buffer or NULL to read the next packets |
len | buffer len |
Definition at line 918 of file rtpdec.c.
Referenced by ff_rtsp_open_transport_ctx().
void ff_rtp_parse_close | ( | RTPDemuxContext * | s | ) |
Definition at line 931 of file rtpdec.c.
Referenced by ff_rtsp_undo_setup(), and rtsp_read_setup().
int ff_parse_fmtp | ( | AVFormatContext * | s, |
AVStream * | stream, | ||
PayloadContext * | data, | ||
const char * | p, | ||
int(*)(AVFormatContext *s, AVStream *stream, PayloadContext *data, const char *attr, const char *value) | parse_fmtp | ||
) |
Definition at line 938 of file rtpdec.c.
Referenced by amr_parse_sdp_line(), dv_parse_sdp_line(), hevc_parse_sdp_line(), ilbc_parse_sdp_line(), latm_parse_sdp_line(), parse_h264_sdp_line(), parse_sdp_line(), rfc4175_parse_sdp_line(), and xiph_parse_sdp_line().
int ff_rtp_finalize_packet | ( | AVPacket * | pkt, |
AVIOContext ** | dyn_buf, | ||
int | stream_idx | ||
) |
Close the dynamic buffer and make a packet from it.
Definition at line 976 of file rtpdec.c.
Referenced by ac3_handle_packet(), dv_handle_packet(), h261_handle_packet(), h263_handle_packet(), jpeg_parse_packet(), mpa_robust_parse_packet(), svq3_parse_packet(), vc2hq_handle_frame_fragment(), vp8_handle_packet(), vp9_handle_packet(), and xiph_handle_packet().
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const RTPDynamicProtocolHandler ff_rdt_video_handler |
const RTPDynamicProtocolHandler ff_rdt_audio_handler |
const RTPDynamicProtocolHandler ff_rdt_live_video_handler |
const RTPDynamicProtocolHandler ff_rdt_live_audio_handler |
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