* 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
#include "libavcodec/avcodec.h"
#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 au_headers_allocated;
- int nb_au_headers;
- int au_headers_length_bytes;
- int cur_au_index;
-} RTPPayloadData;
+#include "url.h"
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
+
+#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);
-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);
-
-int rtp_get_local_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, URLContext *rtpc, int payload_type, int queue_size);
+void ff_rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx,
+ RTPDynamicProtocolHandler *handler);
+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
* (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, int count);
// 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
// fields from AVRtpDynamicPayloadType_s
const char enc_name[50]; /* XXX: still why 50 ? ;-) */
enum AVMediaType codec_type;
- enum CodecID codec_id;
+ 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. */
// may be null
+ int (*init)(AVFormatContext *s, int st_index, PayloadContext *priv_data); ///< Initialize dynamic protocol handler, called after the full rtpmap line is parsed
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.
+ PayloadContext *(*alloc) (void); ///< allocate any data needed by the rtp parsing for this dynamic data.
+ void (*free)(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 unwrapped_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
uint32_t last_rtcp_timestamp; // TODO: move into statistics
+ int64_t rtcp_ts_offset;
/* rtcp sender statistics */
unsigned int packet_count; // TODO: move into statistics (outgoing)
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.
int max_frames_per_packet;
};
-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.
+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);
#endif /* AVFORMAT_RTPDEC_H */
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