* RTSP/SDP client
* Copyright (c) 2002 Fabrice Bellard.
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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 this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-#include <unistd.h> /* for select() prototype */
#include <sys/time.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#ifndef __BEOS__
-# include <arpa/inet.h>
-#else
-# include "barpainet.h"
-#endif
+#include <unistd.h> /* for select() prototype */
+#include "network.h"
+
+#include "rtp_internal.h"
//#define DEBUG
//#define DEBUG_RTP_TCP
int sdp_ttl; /* IP TTL (from SDP content - not used in RTSP) */
int sdp_payload_type; /* payload type - only used in SDP */
rtp_payload_data_t rtp_payload_data; /* rtp payload parsing infos from SDP */
+
+ RTPDynamicProtocolHandler *dynamic_handler; ///< Only valid if it's a dynamic protocol. (This is the handler structure)
+ void *dynamic_protocol_context; ///< Only valid if it's a dynamic protocol. (This is any private data associated with the dynamic protocol)
} RTSPStream;
static int rtsp_read_play(AVFormatContext *s);
int rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_UDP);
-FFRTSPCallback *ff_rtsp_callback = NULL;
-
static int rtsp_probe(AVProbeData *p)
{
if (strstart(p->filename, "rtsp:", NULL))
/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other
params>] */
-static int sdp_parse_rtpmap(AVCodecContext *codec, int payload_type, const char *p)
+static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payload_type, const char *p)
{
char buf[256];
int i;
see if we can handle this kind of payload */
get_word_sep(buf, sizeof(buf), "/", &p);
if (payload_type >= RTP_PT_PRIVATE) {
- /* We are in dynmaic payload type case ... search into AVRtpDynamicPayloadTypes[] */
- for (i = 0; AVRtpDynamicPayloadTypes[i].codec_id != CODEC_ID_NONE; ++i)
- if (!strcmp(buf, AVRtpDynamicPayloadTypes[i].enc_name) && (codec->codec_type == AVRtpDynamicPayloadTypes[i].codec_type)) {
- codec->codec_id = AVRtpDynamicPayloadTypes[i].codec_id;
+ RTPDynamicProtocolHandler *handler= RTPFirstDynamicPayloadHandler;
+ while(handler) {
+ if (!strcmp(buf, handler->enc_name) && (codec->codec_type == handler->codec_type)) {
+ codec->codec_id = handler->codec_id;
+ rtsp_st->dynamic_handler= handler;
+ if(handler->open) {
+ rtsp_st->dynamic_protocol_context= handler->open();
+ }
break;
}
+ handler= handler->next;
+ }
} else {
/* We are in a standard case ( from http://www.iana.org/assignments/rtp-parameters) */
/* search into AVRtpPayloadTypes[] */
i = atoi(buf);
if (i > 0)
codec->channels = i;
+ // TODO: there is a bug here; if it is a mono stream, and less than 22000Hz, faad upconverts to stereo and twice the
+ // frequency. No problem, but the sample rate is being set here by the sdp line. Upcoming patch forthcoming. (rdm)
}
av_log(codec, AV_LOG_DEBUG, " audio samplerate set to : %i\n", codec->sample_rate);
av_log(codec, AV_LOG_DEBUG, " audio channels set to : %i\n", codec->channels);
{
switch (codec->codec_id) {
case CODEC_ID_MPEG4:
- case CODEC_ID_MPEG4AAC:
+ case CODEC_ID_AAC:
if (!strcmp(attr, "config")) {
/* decode the hexa encoded parameter */
int len = hex_to_data(NULL, value);
{NULL, -1, -1},
};
+/** parse the attribute line from the fmtp a line of an sdp resonse. This is broken out as a function
+* because it is used in rtp_h264.c, which is forthcoming.
+*/
+int rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size)
+{
+ skip_spaces(p);
+ if(**p)
+ {
+ get_word_sep(attr, attr_size, "=", p);
+ if (**p == '=')
+ (*p)++;
+ get_word_sep(value, value_size, ";", p);
+ if (**p == ';')
+ (*p)++;
+ return 1;
+ }
+ return 0;
+}
+
/* parse a SDP line and save stream attributes */
static void sdp_parse_fmtp(AVStream *st, const char *p)
{
rtp_payload_data_t *rtp_payload_data = &rtsp_st->rtp_payload_data;
/* loop on each attribute */
- for(;;) {
- skip_spaces(&p);
- if (*p == '\0')
- break;
- get_word_sep(attr, sizeof(attr), "=", &p);
- if (*p == '=')
- p++;
- get_word_sep(value, sizeof(value), ";", &p);
- if (*p == ';')
- p++;
+ while(rtsp_next_attr_and_value(&p, attr, sizeof(attr), value, sizeof(value)))
+ {
/* grab the codec extra_data from the config parameter of the fmtp line */
sdp_parse_fmtp_config(codec, attr, value);
/* Looking for a known attribute */
}
}
+/** Parse a string \p in the form of Range:npt=xx-xx, and determine the start
+ * and end time.
+ * Used for seeking in the rtp stream.
+ */
+static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
+{
+ char buf[256];
+
+ skip_spaces(&p);
+ if (!stristart(p, "npt=", &p))
+ return;
+
+ *start = AV_NOPTS_VALUE;
+ *end = AV_NOPTS_VALUE;
+
+ get_word_sep(buf, sizeof(buf), "-", &p);
+ *start = parse_date(buf, 1);
+ if (*p == '-') {
+ p++;
+ get_word_sep(buf, sizeof(buf), "-", &p);
+ *end = parse_date(buf, 1);
+ }
+// av_log(NULL, AV_LOG_DEBUG, "Range Start: %lld\n", *start);
+// av_log(NULL, AV_LOG_DEBUG, "Range End: %lld\n", *end);
+}
+
typedef struct SDPParseState {
/* SDP only */
struct in_addr default_ip;
st = s->streams[i];
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
- sdp_parse_rtpmap(st->codec, payload_type, p);
+ sdp_parse_rtpmap(st->codec, rtsp_st, payload_type, p);
}
}
} else if (strstart(p, "fmtp:", &p)) {
st = s->streams[i];
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
- sdp_parse_fmtp(st, p);
+ if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
+ if(!rtsp_st->dynamic_handler->parse_sdp_a_line(st, rtsp_st->dynamic_protocol_context, buf)) {
+ sdp_parse_fmtp(st, p);
+ }
+ } else {
+ sdp_parse_fmtp(st, p);
+ }
}
}
+ } else if(strstart(p, "framesize:", &p)) {
+ // let dynamic protocol handlers have a stab at the line.
+ get_word(buf1, sizeof(buf1), &p);
+ payload_type = atoi(buf1);
+ for(i = 0; i < s->nb_streams;i++) {
+ st = s->streams[i];
+ rtsp_st = st->priv_data;
+ if (rtsp_st->sdp_payload_type == payload_type) {
+ if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
+ rtsp_st->dynamic_handler->parse_sdp_a_line(st, rtsp_st->dynamic_protocol_context, buf);
+ }
+ }
+ }
+ } else if(strstart(p, "range:", &p)) {
+ int64_t start, end;
+
+ // this is so that seeking on a streamed file can work.
+ rtsp_parse_range_npt(p, &start, &end);
+ s->start_time= start;
+ s->duration= (end==AV_NOPTS_VALUE)?AV_NOPTS_VALUE:end-start; // AV_NOPTS_VALUE means live broadcast (and can't seek)
}
break;
}
}
}
-static void rtsp_parse_range_npt(RTSPHeader *reply, const char *p)
-{
- char buf[256];
-
- skip_spaces(&p);
- if (!stristart(p, "npt=", &p))
- return;
-
- reply->range_start = AV_NOPTS_VALUE;
- reply->range_end = AV_NOPTS_VALUE;
-
- get_word_sep(buf, sizeof(buf), "-", &p);
- reply->range_start = parse_date(buf, 1);
- if (*p == '-') {
- p++;
- get_word_sep(buf, sizeof(buf), "-", &p);
- reply->range_end = parse_date(buf, 1);
- }
-}
-
void rtsp_parse_line(RTSPHeader *reply, const char *buf)
{
const char *p;
} else if (stristart(p, "CSeq:", &p)) {
reply->seq = strtol(p, NULL, 10);
} else if (stristart(p, "Range:", &p)) {
- rtsp_parse_range_npt(reply, p);
+ rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
}
}
*content_ptr = content;
}
-/* useful for modules: set RTSP callback function */
-
-void rtsp_set_callback(FFRTSPCallback *rtsp_cb)
-{
- ff_rtsp_callback = rtsp_cb;
-}
-
/* close and free RTSP streams */
static void rtsp_close_streams(RTSPState *rt)
rtp_parse_close(rtsp_st->rtp_ctx);
if (rtsp_st->rtp_handle)
url_close(rtsp_st->rtp_handle);
+ if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context)
+ rtsp_st->dynamic_handler->close(rtsp_st->dynamic_protocol_context);
}
av_free(rtsp_st);
}
AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
- char host[1024], path[1024], tcpname[1024], cmd[2048];
+ char host[1024], path[1024], tcpname[1024], cmd[2048], *option_list, *option;
URLContext *rtsp_hd;
int port, i, j, ret, err;
RTSPHeader reply1, *reply = &reply1;
unsigned char *content = NULL;
RTSPStream *rtsp_st;
- int protocol_mask;
+ int protocol_mask = 0;
AVStream *st;
/* extract hostname and port */
if (port < 0)
port = RTSP_DEFAULT_PORT;
+ /* search for options */
+ option_list = strchr(path, '?');
+ if (option_list) {
+ /* remove the options from the path */
+ *option_list++ = 0;
+ while(option_list) {
+ /* move the option pointer */
+ option = option_list;
+ option_list = strchr(option_list, '&');
+ if (option_list)
+ *(option_list++) = 0;
+ /* handle the options */
+ if (strcmp(option, "udp") == 0)
+ protocol_mask = (1<< RTSP_PROTOCOL_RTP_UDP);
+ else if (strcmp(option, "multicast") == 0)
+ protocol_mask = (1<< RTSP_PROTOCOL_RTP_UDP_MULTICAST);
+ else if (strcmp(option, "tcp") == 0)
+ protocol_mask = (1<< RTSP_PROTOCOL_RTP_TCP);
+ }
+ }
+
+ if (!protocol_mask)
+ protocol_mask = rtsp_default_protocols;
+
/* open the tcp connexion */
snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port);
if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0)
goto fail;
}
- protocol_mask = rtsp_default_protocols;
-
/* for each stream, make the setup request */
/* XXX: we assume the same server is used for the control of each
RTSP stream */
if (RTSP_RTP_PORT_MIN != 0) {
while(j <= RTSP_RTP_PORT_MAX) {
snprintf(buf, sizeof(buf), "rtp://?localport=%d", j);
- if (url_open(&rtsp_st->rtp_handle, buf, URL_RDONLY) == 0) {
+ if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0) {
j += 2; /* we will use two port by rtp stream (rtp and rtcp) */
goto rtp_opened;
}
host,
reply->transports[0].server_port_min,
ttl);
- if (url_open(&rtsp_st->rtp_handle, url, URL_RDONLY) < 0) {
+ if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
st = s->streams[rtsp_st->stream_index];
if (!st)
s->ctx_flags |= AVFMTCTX_NOHEADER;
- rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->sdp_payload_type, &rtsp_st->rtp_payload_data);
+ rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->rtp_handle, rtsp_st->sdp_payload_type, &rtsp_st->rtp_payload_data);
if (!rtsp_st->rtp_ctx) {
err = AVERROR_NOMEM;
goto fail;
+ } else {
+ if(rtsp_st->dynamic_handler) {
+ rtsp_st->rtp_ctx->dynamic_protocol_context= rtsp_st->dynamic_protocol_context;
+ rtsp_st->rtp_ctx->parse_packet= rtsp_st->dynamic_handler->parse_packet;
+ }
}
}
- /* use callback if available to extend setup */
- if (ff_rtsp_callback) {
- if (ff_rtsp_callback(RTSP_ACTION_CLIENT_SETUP, rt->session_id,
- NULL, 0, rt->last_reply) < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- }
-
-
rt->state = RTSP_STATE_IDLE;
rt->seek_timestamp = 0; /* default is to start stream at position
zero */
case RTSP_PROTOCOL_RTP_UDP:
case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
len = udp_read_packet(s, &rtsp_st, buf, sizeof(buf));
+ if (rtsp_st->rtp_ctx)
+ rtp_check_and_send_back_rr(rtsp_st->rtp_ctx, len);
break;
}
if (len < 0)
s->filename);
rtsp_send_cmd(s, cmd, reply, NULL);
- if (ff_rtsp_callback) {
- ff_rtsp_callback(RTSP_ACTION_CLIENT_TEARDOWN, rt->session_id,
- NULL, 0, NULL);
- }
-
rtsp_close_streams(rt);
url_close(rt->rtsp_hd);
return 0;
}
+#ifdef CONFIG_RTSP_DEMUXER
AVInputFormat rtsp_demuxer = {
"rtsp",
"RTSP input format",
.read_play = rtsp_read_play,
.read_pause = rtsp_read_pause,
};
+#endif
static int sdp_probe(AVProbeData *p1)
{
inet_ntoa(rtsp_st->sdp_ip),
rtsp_st->sdp_port,
rtsp_st->sdp_ttl);
- if (url_open(&rtsp_st->rtp_handle, url, URL_RDONLY) < 0) {
+ if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
st = s->streams[rtsp_st->stream_index];
if (!st)
s->ctx_flags |= AVFMTCTX_NOHEADER;
- rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->sdp_payload_type, &rtsp_st->rtp_payload_data);
+ rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->rtp_handle, rtsp_st->sdp_payload_type, &rtsp_st->rtp_payload_data);
if (!rtsp_st->rtp_ctx) {
err = AVERROR_NOMEM;
goto fail;
+ } else {
+ if(rtsp_st->dynamic_handler) {
+ rtsp_st->rtp_ctx->dynamic_protocol_context= rtsp_st->dynamic_protocol_context;
+ rtsp_st->rtp_ctx->parse_packet= rtsp_st->dynamic_handler->parse_packet;
+ }
}
}
return 0;
};
#endif
+#ifdef CONFIG_REDIR_DEMUXER
/* dummy redirector format (used directly in av_open_input_file now) */
static int redir_probe(AVProbeData *pd)
{
NULL,
NULL,
};
+#endif
projects / ffmpeg / blobdiff