* Copyright (c) 2002 Fabrice Bellard
* Copyright (c) 2006 Ryan Martell <rdm4@martellventures.com>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
#ifndef AVFORMAT_RTPDEC_H
#define AVFORMAT_RTPDEC_H
#include "libavcodec/avcodec.h"
#include "avformat.h"
#include "rtp.h"
-
-#define SPACE_CHARS " \t\r\n"
+#include "url.h"
+#include "srtp.h"
typedef struct PayloadContext PayloadContext;
-typedef struct RTPDynamicProtocolHandler_s RTPDynamicProtocolHandler;
+typedef struct RTPDynamicProtocolHandler RTPDynamicProtocolHandler;
#define RTP_MIN_PACKET_LENGTH 12
-#define RTP_MAX_PACKET_LENGTH 1500 /* XXX: suppress this define */
+#define RTP_MAX_PACKET_LENGTH 1500
+
+#define RTP_REORDER_QUEUE_DEFAULT_SIZE 10
+
+#define RTP_NOTS_VALUE ((uint32_t)-1)
typedef struct RTPDemuxContext RTPDemuxContext;
-RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type);
-void rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx,
- RTPDynamicProtocolHandler *handler);
-int rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
- const uint8_t *buf, int len);
-void rtp_parse_close(RTPDemuxContext *s);
-#if (LIBAVFORMAT_VERSION_MAJOR <= 53)
-int rtp_get_local_port(URLContext *h);
-#endif
-int rtp_get_local_rtp_port(URLContext *h);
-int rtp_get_local_rtcp_port(URLContext *h);
-
-int rtp_set_remote_url(URLContext *h, const char *uri);
-#if (LIBAVFORMAT_VERSION_MAJOR <= 52)
-void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd);
-#endif
+RTPDemuxContext *ff_rtp_parse_open(AVFormatContext *s1, AVStream *st,
+ int payload_type, int queue_size);
+void ff_rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx,
+ RTPDynamicProtocolHandler *handler);
+void ff_rtp_parse_set_crypto(RTPDemuxContext *s, const char *suite,
+ const char *params);
+int ff_rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
+ uint8_t **buf, int len);
+void ff_rtp_parse_close(RTPDemuxContext *s);
+int64_t ff_rtp_queued_packet_time(RTPDemuxContext *s);
+void ff_rtp_reset_packet_queue(RTPDemuxContext *s);
+int ff_rtp_get_local_rtp_port(URLContext *h);
+int ff_rtp_get_local_rtcp_port(URLContext *h);
+
+int ff_rtp_set_remote_url(URLContext *h, const char *uri);
/**
* Send a dummy packet on both port pairs to set up the connection
* The same routine is used with RDT too, even if RDT doesn't use normal
* RTP packets otherwise.
*/
-void rtp_send_punch_packets(URLContext* rtp_handle);
+void ff_rtp_send_punch_packets(URLContext* rtp_handle);
/**
* some rtp servers assume client is dead if they don't hear from them...
- * so we send a Receiver Report to the provided ByteIO context
+ * so we send a Receiver Report to the provided URLContext or AVIOContext
* (we don't have access to the rtcp handle from here)
*/
-int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count);
+int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, URLContext *fd,
+ AVIOContext *avio, int count);
+int ff_rtp_send_rtcp_feedback(RTPDemuxContext *s, URLContext *fd,
+ AVIOContext *avio);
// these statistics are used for rtcp receiver reports...
-typedef struct {
+typedef struct RTPStatistics {
uint16_t max_seq; ///< highest sequence number seen
uint32_t cycles; ///< shifted count of sequence number cycles
uint32_t base_seq; ///< base sequence number
uint32_t bad_seq; ///< last bad sequence number + 1
int probation; ///< sequence packets till source is valid
- int received; ///< packets received
- int expected_prior; ///< packets expected in last interval
- int received_prior; ///< packets received in last interval
+ uint32_t received; ///< packets received
+ uint32_t expected_prior; ///< packets expected in last interval
+ uint32_t received_prior; ///< packets received in last interval
uint32_t transit; ///< relative transit time for previous packet
uint32_t jitter; ///< estimated jitter.
} RTPStatistics;
* @param s stream context
* @param st stream that this packet belongs to
* @param pkt packet in which to write the parsed data
- * @param timestamp pointer in which to write the timestamp of this RTP packet
+ * @param timestamp pointer to the RTP timestamp of the input data, can be
+ * updated by the function if returning older, buffered data
* @param buf pointer to raw RTP packet data
* @param len length of buf
+ * @param seq RTP sequence number of the packet
* @param flags flags from the RTP packet header (RTP_FLAG_*)
*/
-typedef int (*DynamicPayloadPacketHandlerProc) (AVFormatContext *ctx,
- PayloadContext *s,
- AVStream *st,
- AVPacket * pkt,
- uint32_t *timestamp,
- const uint8_t * buf,
- int len, int flags);
-
-struct RTPDynamicProtocolHandler_s {
- // fields from AVRtpDynamicPayloadType_s
- const char enc_name[50]; /* XXX: still why 50 ? ;-) */
+typedef int (*DynamicPayloadPacketHandlerProc)(AVFormatContext *ctx,
+ PayloadContext *s,
+ AVStream *st, AVPacket *pkt,
+ uint32_t *timestamp,
+ const uint8_t * buf,
+ int len, uint16_t seq, int flags);
+
+struct RTPDynamicProtocolHandler {
+ const char enc_name[50];
enum AVMediaType codec_type;
- enum CodecID codec_id;
-
- // may be null
- int (*parse_sdp_a_line) (AVFormatContext *s,
- int st_index,
- PayloadContext *priv_data,
- const char *line); ///< Parse the a= line from the sdp field
- PayloadContext *(*open) (void); ///< allocate any data needed by the rtp parsing for this dynamic data.
- void (*close)(PayloadContext *protocol_data); ///< free any data needed by the rtp parsing for this dynamic data.
- DynamicPayloadPacketHandlerProc parse_packet; ///< parse handler for this dynamic packet.
-
- struct RTPDynamicProtocolHandler_s *next;
+ enum AVCodecID codec_id;
+ int static_payload_id; /* 0 means no payload id is set. 0 is a valid
+ * payload ID (PCMU), too, but that format doesn't
+ * require any custom depacketization code. */
+
+ /** Initialize dynamic protocol handler, called after the full rtpmap line is parsed, may be null */
+ int (*init)(AVFormatContext *s, int st_index, PayloadContext *priv_data);
+ /** Parse the a= line from the sdp field */
+ int (*parse_sdp_a_line)(AVFormatContext *s, int st_index,
+ PayloadContext *priv_data, const char *line);
+ /** Allocate any data needed by the rtp parsing for this dynamic data. */
+ PayloadContext *(*alloc)(void);
+ /** Free any data needed by the rtp parsing for this dynamic data. */
+ void (*free)(PayloadContext *protocol_data);
+ /** Parse handler for this dynamic packet */
+ DynamicPayloadPacketHandlerProc parse_packet;
+ int (*need_keyframe)(PayloadContext *context);
+
+ struct RTPDynamicProtocolHandler *next;
};
-// moved out of rtp.c, because the h264 decoder needs to know about this structure..
+typedef struct RTPPacket {
+ uint16_t seq;
+ uint8_t *buf;
+ int len;
+ int64_t recvtime;
+ struct RTPPacket *next;
+} RTPPacket;
+
struct RTPDemuxContext {
AVFormatContext *ic;
AVStream *st;
uint32_t timestamp;
uint32_t base_timestamp;
uint32_t cur_timestamp;
+ int64_t unwrapped_timestamp;
int64_t range_start_offset;
int max_payload_size;
- struct MpegTSContext *ts; /* only used for MP2T payloads */
- int read_buf_index;
- int read_buf_size;
/* used to send back RTCP RR */
- URLContext *rtp_ctx;
char hostname[256];
- RTPStatistics statistics; ///< Statistics for this stream (used by RTCP receiver reports)
+ int srtp_enabled;
+ struct SRTPContext srtp;
+
+ /** Statistics for this stream (used by RTCP receiver reports) */
+ RTPStatistics statistics;
+
+ /** Fields for packet reordering @{ */
+ int prev_ret; ///< The return value of the actual parsing of the previous packet
+ RTPPacket* queue; ///< A sorted queue of buffered packets not yet returned
+ int queue_len; ///< The number of packets in queue
+ int queue_size; ///< The size of queue, or 0 if reordering is disabled
+ /*@}*/
/* rtcp sender statistics receive */
- int64_t last_rtcp_ntp_time; // TODO: move into statistics
- int64_t first_rtcp_ntp_time; // TODO: move into statistics
- uint32_t last_rtcp_timestamp; // TODO: move into statistics
+ int64_t last_rtcp_ntp_time;
+ int64_t last_rtcp_reception_time;
+ int64_t first_rtcp_ntp_time;
+ uint32_t last_rtcp_timestamp;
+ int64_t rtcp_ts_offset;
/* rtcp sender statistics */
- unsigned int packet_count; // TODO: move into statistics (outgoing)
- unsigned int octet_count; // TODO: move into statistics (outgoing)
- unsigned int last_octet_count; // TODO: move into statistics (outgoing)
- int first_packet;
- /* buffer for output */
- uint8_t buf[RTP_MAX_PACKET_LENGTH];
- uint8_t *buf_ptr;
+ unsigned int packet_count;
+ unsigned int octet_count;
+ unsigned int last_octet_count;
+ int64_t last_feedback_time;
/* dynamic payload stuff */
- DynamicPayloadPacketHandlerProc parse_packet; ///< This is also copied from the dynamic protocol handler structure
- PayloadContext *dynamic_protocol_context; ///< This is a copy from the values setup from the sdp parsing, in rtsp.c don't free me.
- int max_frames_per_packet;
+ const RTPDynamicProtocolHandler *handler;
+ PayloadContext *dynamic_protocol_context;
};
-extern RTPDynamicProtocolHandler *RTPFirstDynamicPayloadHandler;
void ff_register_dynamic_payload_handler(RTPDynamicProtocolHandler *handler);
+RTPDynamicProtocolHandler *ff_rtp_handler_find_by_name(const char *name,
+ enum AVMediaType codec_type);
+RTPDynamicProtocolHandler *ff_rtp_handler_find_by_id(int id,
+ enum AVMediaType codec_type);
-int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size); ///< from rtsp.c, but used by rtp dynamic protocol handlers.
+/* from rtsp.c, but used by rtp dynamic protocol handlers. */
+int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
+ char *value, int value_size);
int ff_parse_fmtp(AVStream *stream, PayloadContext *data, const char *p,
int (*parse_fmtp)(AVStream *stream,
void av_register_rtp_dynamic_payload_handlers(void);
+/**
+ * Close the dynamic buffer and make a packet from it.
+ */
+int ff_rtp_finalize_packet(AVPacket *pkt, AVIOContext **dyn_buf, int stream_idx);
+
#endif /* AVFORMAT_RTPDEC_H */
projects / ffmpeg / blobdiff