#include "avformat.h"
#include "rtp.h"
-/** Structure listing useful vars to parse RTP packet payload*/
-typedef struct rtp_payload_data
-{
- int sizelength;
- int indexlength;
- int indexdeltalength;
- int profile_level_id;
- int streamtype;
- int objecttype;
- char *mode;
-
- /** mpeg 4 AU headers */
- struct AUHeaders {
- int size;
- int index;
- int cts_flag;
- int cts;
- int dts_flag;
- int dts;
- int rap_flag;
- int streamstate;
- } *au_headers;
- int nb_au_headers;
- int au_headers_length_bytes;
- int cur_au_index;
-} RTPPayloadData;
-
typedef struct PayloadContext PayloadContext;
typedef struct RTPDynamicProtocolHandler_s RTPDynamicProtocolHandler;
#define RTP_MIN_PACKET_LENGTH 12
+#define RTP_MAX_PACKET_LENGTH 1500 /* XXX: suppress this define */
+
+#define RTP_REORDER_QUEUE_DEFAULT_SIZE 10
-int rtp_get_codec_info(AVCodecContext *codec, int payload_type);
+#define RTP_NOTS_VALUE ((uint32_t)-1)
typedef struct RTPDemuxContext RTPDemuxContext;
-RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, RTPPayloadData *rtp_payload_data);
+RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, int queue_size);
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);
+ uint8_t **buf, int len);
void rtp_parse_close(RTPDemuxContext *s);
+int64_t ff_rtp_queued_packet_time(RTPDemuxContext *s);
+void ff_rtp_reset_packet_queue(RTPDemuxContext *s);
+int rtp_get_local_rtp_port(URLContext *h);
+int rtp_get_local_rtcp_port(URLContext *h);
-int rtp_get_local_port(URLContext *h);
int rtp_set_remote_url(URLContext *h, const char *uri);
-void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd);
+
+/**
+ * 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.
+ */
+void rtp_send_punch_packets(URLContext* rtp_handle);
/**
* some rtp servers assume client is dead if they don't hear from them...
*/
int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count);
+/**
+ * Get the file handle for the RTCP socket.
+ */
+int rtp_get_rtcp_file_handle(URLContext *h);
+
// these statistics are used for rtcp receiver reports...
typedef struct {
uint16_t max_seq; ///< highest sequence number seen
uint32_t jitter; ///< estimated jitter.
} RTPStatistics;
+#define RTP_FLAG_KEY 0x1 ///< RTP packet contains a keyframe
+#define RTP_FLAG_MARKER 0x2 ///< RTP marker bit was set for this packet
/**
* Packet parsing for "private" payloads in the RTP specs.
*
* @param timestamp pointer in which to write the timestamp of this RTP packet
* @param buf pointer to raw RTP packet data
* @param len length of buf
- * @param flags flags from the RTP packet header (PKT_FLAG_*)
+ * @param flags flags from the RTP packet header (RTP_FLAG_*)
*/
typedef int (*DynamicPayloadPacketHandlerProc) (AVFormatContext *ctx,
PayloadContext *s,
struct RTPDynamicProtocolHandler_s {
// fields from AVRtpDynamicPayloadType_s
const char enc_name[50]; /* XXX: still why 50 ? ;-) */
- enum CodecType codec_type;
+ enum AVMediaType codec_type;
enum CodecID codec_id;
// may be null
int st_index,
PayloadContext *priv_data,
const char *line); ///< Parse the a= line from the sdp field
- PayloadContext *(*open) (); ///< allocate any data needed by the rtp parsing for this dynamic data.
+ 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;
};
+typedef struct RTPPacket {
+ uint16_t seq;
+ uint8_t *buf;
+ int len;
+ int64_t recvtime;
+ struct RTPPacket *next;
+} RTPPacket;
+
// moved out of rtp.c, because the h264 decoder needs to know about this structure..
struct RTPDemuxContext {
AVFormatContext *ic;
uint32_t timestamp;
uint32_t base_timestamp;
uint32_t cur_timestamp;
+ int64_t range_start_offset;
int max_payload_size;
struct MpegTSContext *ts; /* only used for MP2T payloads */
int read_buf_index;
RTPStatistics statistics; ///< Statistics for this stream (used by RTCP receiver reports)
+ /** 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
uint8_t buf[RTP_MAX_PACKET_LENGTH];
uint8_t *buf_ptr;
- /* special infos for au headers parsing */
- RTPPayloadData *rtp_payload_data; // TODO: Move into dynamic payload handlers
-
/* 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.
extern RTPDynamicProtocolHandler *RTPFirstDynamicPayloadHandler;
void ff_register_dynamic_payload_handler(RTPDynamicProtocolHandler *handler);
-int 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.
+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.
-const char *ff_rtp_enc_name(int payload_type);
-enum CodecID ff_rtp_codec_id(const char *buf, enum CodecType codec_type);
+int ff_parse_fmtp(AVStream *stream, PayloadContext *data, const char *p,
+ int (*parse_fmtp)(AVStream *stream,
+ PayloadContext *data,
+ char *attr, char *value));
void av_register_rtp_dynamic_payload_handlers(void);
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