[FFmpeg-cvslog] r25601 - in trunk/libavformat: Makefile rtsp.c rtsp.h rtspdec.c
mstorsjo
subversion
Fri Oct 29 10:43:57 CEST 2010
Author: mstorsjo
Date: Fri Oct 29 10:43:57 2010
New Revision: 25601
Log:
rtsp: Split out the RTSP demuxer functions to a separate, new file
Added:
trunk/libavformat/rtspdec.c
- copied, changed from r25600, trunk/libavformat/rtsp.c
Modified:
trunk/libavformat/Makefile
trunk/libavformat/rtsp.c
trunk/libavformat/rtsp.h
Modified: trunk/libavformat/Makefile
==============================================================================
--- trunk/libavformat/Makefile Fri Oct 29 10:41:49 2010 (r25600)
+++ trunk/libavformat/Makefile Fri Oct 29 10:43:57 2010 (r25601)
@@ -243,7 +243,7 @@ OBJS-$(CONFIG_RTPDEC)
rtpdec_svq3.o \
rtpdec_vp8.o \
rtpdec_xiph.o
-OBJS-$(CONFIG_RTSP_DEMUXER) += rtsp.o httpauth.o
+OBJS-$(CONFIG_RTSP_DEMUXER) += rtsp.o rtspdec.o httpauth.o
OBJS-$(CONFIG_RTSP_MUXER) += rtsp.o rtspenc.o httpauth.o \
rtpenc_chain.o
OBJS-$(CONFIG_SAP_DEMUXER) += sapdec.o
Modified: trunk/libavformat/rtsp.c
==============================================================================
--- trunk/libavformat/rtsp.c Fri Oct 29 10:41:49 2010 (r25600)
+++ trunk/libavformat/rtsp.c Fri Oct 29 10:43:57 2010 (r25601)
@@ -411,7 +411,7 @@ static void sdp_parse_line(AVFormatConte
}
}
-static int sdp_parse(AVFormatContext *s, const char *content)
+int ff_sdp_parse(AVFormatContext *s, const char *content)
{
const char *p;
int letter;
@@ -1177,98 +1177,6 @@ fail:
return err;
}
-static int rtsp_read_play(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- RTSPMessageHeader reply1, *reply = &reply1;
- int i;
- char cmd[1024];
-
- av_log(s, AV_LOG_DEBUG, "hello state=%d\n", rt->state);
- rt->nb_byes = 0;
-
- if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) {
- if (rt->state == RTSP_STATE_PAUSED) {
- cmd[0] = 0;
- } else {
- snprintf(cmd, sizeof(cmd),
- "Range: npt=%0.3f-\r\n",
- (double)rt->seek_timestamp / AV_TIME_BASE);
- }
- ff_rtsp_send_cmd(s, "PLAY", rt->control_uri, cmd, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK) {
- return -1;
- }
- if (rt->transport == RTSP_TRANSPORT_RTP) {
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- RTSPStream *rtsp_st = rt->rtsp_streams[i];
- RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
- AVStream *st = NULL;
- if (!rtpctx)
- continue;
- if (rtsp_st->stream_index >= 0)
- st = s->streams[rtsp_st->stream_index];
- ff_rtp_reset_packet_queue(rtpctx);
- if (reply->range_start != AV_NOPTS_VALUE) {
- rtpctx->last_rtcp_ntp_time = AV_NOPTS_VALUE;
- rtpctx->first_rtcp_ntp_time = AV_NOPTS_VALUE;
- if (st)
- rtpctx->range_start_offset =
- av_rescale_q(reply->range_start, AV_TIME_BASE_Q,
- st->time_base);
- }
- }
- }
- }
- rt->state = RTSP_STATE_STREAMING;
- return 0;
-}
-
-#if CONFIG_RTSP_DEMUXER
-static int rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply)
-{
- RTSPState *rt = s->priv_data;
- char cmd[1024];
- unsigned char *content = NULL;
- int ret;
-
- /* describe the stream */
- snprintf(cmd, sizeof(cmd),
- "Accept: application/sdp\r\n");
- if (rt->server_type == RTSP_SERVER_REAL) {
- /**
- * The Require: attribute is needed for proper streaming from
- * Realmedia servers.
- */
- av_strlcat(cmd,
- "Require: com.real.retain-entity-for-setup\r\n",
- sizeof(cmd));
- }
- ff_rtsp_send_cmd(s, "DESCRIBE", rt->control_uri, cmd, reply, &content);
- if (!content)
- return AVERROR_INVALIDDATA;
- if (reply->status_code != RTSP_STATUS_OK) {
- av_freep(&content);
- return AVERROR_INVALIDDATA;
- }
-
- av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", content);
- /* now we got the SDP description, we parse it */
- ret = sdp_parse(s, (const char *)content);
- av_freep(&content);
- if (ret < 0)
- return AVERROR_INVALIDDATA;
-
- return 0;
-}
-#else /* !CONFIG_RTSP_DEMUXER */
-/* A declaration of this function is needed so that the function is
- * defined when parsing the call to it, even if dead code elimination
- * will remove the call later.
- */
-static int rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply);
-#endif /* !CONFIG_RTSP_DEMUXER */
-
void ff_rtsp_close_connections(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
@@ -1485,7 +1393,7 @@ redirect:
}
if (s->iformat && CONFIG_RTSP_DEMUXER)
- err = rtsp_setup_input_streams(s, reply);
+ err = ff_rtsp_setup_input_streams(s, reply);
else if (CONFIG_RTSP_MUXER)
err = ff_rtsp_setup_output_streams(s, host);
if (err)
@@ -1597,10 +1505,7 @@ static int udp_read_packet(AVFormatConte
}
}
-static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
- uint8_t *buf, int buf_size);
-
-static int rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
+int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
{
RTSPState *rt = s->priv_data;
int ret, len;
@@ -1653,7 +1558,7 @@ static int rtsp_fetch_packet(AVFormatCon
default:
#if CONFIG_RTSP_DEMUXER
case RTSP_LOWER_TRANSPORT_TCP:
- len = tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);
+ len = ff_rtsp_tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);
break;
#endif
case RTSP_LOWER_TRANSPORT_UDP:
@@ -1716,255 +1621,6 @@ end:
}
#endif /* CONFIG_RTPDEC */
-#if CONFIG_RTSP_DEMUXER
-static int rtsp_probe(AVProbeData *p)
-{
- if (av_strstart(p->filename, "rtsp:", NULL))
- return AVPROBE_SCORE_MAX;
- return 0;
-}
-
-static int rtsp_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
-{
- RTSPState *rt = s->priv_data;
- int ret;
-
- ret = ff_rtsp_connect(s);
- if (ret)
- return ret;
-
- rt->real_setup_cache = av_mallocz(2 * s->nb_streams * sizeof(*rt->real_setup_cache));
- if (!rt->real_setup_cache)
- return AVERROR(ENOMEM);
- rt->real_setup = rt->real_setup_cache + s->nb_streams * sizeof(*rt->real_setup);
-
- if (ap->initial_pause) {
- /* do not start immediately */
- } else {
- if (rtsp_read_play(s) < 0) {
- ff_rtsp_close_streams(s);
- ff_rtsp_close_connections(s);
- return AVERROR_INVALIDDATA;
- }
- }
-
- return 0;
-}
-
-static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
- uint8_t *buf, int buf_size)
-{
- RTSPState *rt = s->priv_data;
- int id, len, i, ret;
- RTSPStream *rtsp_st;
-
-#ifdef DEBUG_RTP_TCP
- dprintf(s, "tcp_read_packet:\n");
-#endif
-redo:
- for (;;) {
- RTSPMessageHeader reply;
-
- ret = ff_rtsp_read_reply(s, &reply, NULL, 1);
- if (ret < 0)
- return ret;
- if (ret == 1) /* received '$' */
- break;
- /* XXX: parse message */
- if (rt->state != RTSP_STATE_STREAMING)
- return 0;
- }
- ret = url_read_complete(rt->rtsp_hd, buf, 3);
- if (ret != 3)
- return -1;
- id = buf[0];
- len = AV_RB16(buf + 1);
-#ifdef DEBUG_RTP_TCP
- dprintf(s, "id=%d len=%d\n", id, len);
-#endif
- if (len > buf_size || len < 12)
- goto redo;
- /* get the data */
- ret = url_read_complete(rt->rtsp_hd, buf, len);
- if (ret != len)
- return -1;
- if (rt->transport == RTSP_TRANSPORT_RDT &&
- ff_rdt_parse_header(buf, len, &id, NULL, NULL, NULL, NULL) < 0)
- return -1;
-
- /* find the matching stream */
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- rtsp_st = rt->rtsp_streams[i];
- if (id >= rtsp_st->interleaved_min &&
- id <= rtsp_st->interleaved_max)
- goto found;
- }
- goto redo;
-found:
- *prtsp_st = rtsp_st;
- return len;
-}
-static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- RTSPState *rt = s->priv_data;
- int ret;
- RTSPMessageHeader reply1, *reply = &reply1;
- char cmd[1024];
-
- if (rt->server_type == RTSP_SERVER_REAL) {
- int i;
-
- for (i = 0; i < s->nb_streams; i++)
- rt->real_setup[i] = s->streams[i]->discard;
-
- if (!rt->need_subscription) {
- if (memcmp (rt->real_setup, rt->real_setup_cache,
- sizeof(enum AVDiscard) * s->nb_streams)) {
- snprintf(cmd, sizeof(cmd),
- "Unsubscribe: %s\r\n",
- rt->last_subscription);
- ff_rtsp_send_cmd(s, "SET_PARAMETER", rt->control_uri,
- cmd, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK)
- return AVERROR_INVALIDDATA;
- rt->need_subscription = 1;
- }
- }
-
- if (rt->need_subscription) {
- int r, rule_nr, first = 1;
-
- memcpy(rt->real_setup_cache, rt->real_setup,
- sizeof(enum AVDiscard) * s->nb_streams);
- rt->last_subscription[0] = 0;
-
- snprintf(cmd, sizeof(cmd),
- "Subscribe: ");
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- rule_nr = 0;
- for (r = 0; r < s->nb_streams; r++) {
- if (s->streams[r]->priv_data == rt->rtsp_streams[i]) {
- if (s->streams[r]->discard != AVDISCARD_ALL) {
- if (!first)
- av_strlcat(rt->last_subscription, ",",
- sizeof(rt->last_subscription));
- ff_rdt_subscribe_rule(
- rt->last_subscription,
- sizeof(rt->last_subscription), i, rule_nr);
- first = 0;
- }
- rule_nr++;
- }
- }
- }
- av_strlcatf(cmd, sizeof(cmd), "%s\r\n", rt->last_subscription);
- ff_rtsp_send_cmd(s, "SET_PARAMETER", rt->control_uri,
- cmd, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK)
- return AVERROR_INVALIDDATA;
- rt->need_subscription = 0;
-
- if (rt->state == RTSP_STATE_STREAMING)
- rtsp_read_play (s);
- }
- }
-
- ret = rtsp_fetch_packet(s, pkt);
- if (ret < 0)
- return ret;
-
- /* send dummy request to keep TCP connection alive */
- if ((av_gettime() - rt->last_cmd_time) / 1000000 >= rt->timeout / 2) {
- if (rt->server_type == RTSP_SERVER_WMS) {
- ff_rtsp_send_cmd_async(s, "GET_PARAMETER", rt->control_uri, NULL);
- } else {
- ff_rtsp_send_cmd_async(s, "OPTIONS", "*", NULL);
- }
- }
-
- return 0;
-}
-
-/* pause the stream */
-static int rtsp_read_pause(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- RTSPMessageHeader reply1, *reply = &reply1;
-
- if (rt->state != RTSP_STATE_STREAMING)
- return 0;
- else if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) {
- ff_rtsp_send_cmd(s, "PAUSE", rt->control_uri, NULL, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK) {
- return -1;
- }
- }
- rt->state = RTSP_STATE_PAUSED;
- return 0;
-}
-
-static int rtsp_read_seek(AVFormatContext *s, int stream_index,
- int64_t timestamp, int flags)
-{
- RTSPState *rt = s->priv_data;
-
- rt->seek_timestamp = av_rescale_q(timestamp,
- s->streams[stream_index]->time_base,
- AV_TIME_BASE_Q);
- switch(rt->state) {
- default:
- case RTSP_STATE_IDLE:
- break;
- case RTSP_STATE_STREAMING:
- if (rtsp_read_pause(s) != 0)
- return -1;
- rt->state = RTSP_STATE_SEEKING;
- if (rtsp_read_play(s) != 0)
- return -1;
- break;
- case RTSP_STATE_PAUSED:
- rt->state = RTSP_STATE_IDLE;
- break;
- }
- return 0;
-}
-
-static int rtsp_read_close(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
-
-#if 0
- /* NOTE: it is valid to flush the buffer here */
- if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
- url_fclose(&rt->rtsp_gb);
- }
-#endif
- ff_rtsp_send_cmd_async(s, "TEARDOWN", rt->control_uri, NULL);
-
- ff_rtsp_close_streams(s);
- ff_rtsp_close_connections(s);
- ff_network_close();
- rt->real_setup = NULL;
- av_freep(&rt->real_setup_cache);
- return 0;
-}
-
-AVInputFormat rtsp_demuxer = {
- "rtsp",
- NULL_IF_CONFIG_SMALL("RTSP input format"),
- sizeof(RTSPState),
- rtsp_probe,
- rtsp_read_header,
- rtsp_read_packet,
- rtsp_read_close,
- rtsp_read_seek,
- .flags = AVFMT_NOFILE,
- .read_play = rtsp_read_play,
- .read_pause = rtsp_read_pause,
-};
-#endif /* CONFIG_RTSP_DEMUXER */
-
#if CONFIG_SDP_DEMUXER
static int sdp_probe(AVProbeData *p1)
{
@@ -2006,7 +1662,7 @@ static int sdp_read_header(AVFormatConte
}
content[size] ='\0';
- sdp_parse(s, content);
+ ff_sdp_parse(s, content);
av_free(content);
/* open each RTP stream */
@@ -2047,7 +1703,7 @@ AVInputFormat sdp_demuxer = {
sizeof(RTSPState),
sdp_probe,
sdp_read_header,
- rtsp_fetch_packet,
+ ff_rtsp_fetch_packet,
sdp_read_close,
};
#endif /* CONFIG_SDP_DEMUXER */
@@ -2151,7 +1807,7 @@ AVInputFormat rtp_demuxer = {
sizeof(RTSPState),
rtp_probe,
rtp_read_header,
- rtsp_fetch_packet,
+ ff_rtsp_fetch_packet,
sdp_read_close,
.flags = AVFMT_NOFILE,
};
Modified: trunk/libavformat/rtsp.h
==============================================================================
--- trunk/libavformat/rtsp.h Fri Oct 29 10:41:49 2010 (r25600)
+++ trunk/libavformat/rtsp.h Fri Oct 29 10:43:57 2010 (r25601)
@@ -469,9 +469,33 @@ void ff_rtsp_close_streams(AVFormatConte
void ff_rtsp_close_connections(AVFormatContext *rt);
/**
+ * Get the description of the stream and set up the RTSPStream child
+ * objects.
+ */
+int ff_rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply);
+
+/**
* Announce the stream to the server and set up the RTSPStream child
* objects for each media stream.
*/
int ff_rtsp_setup_output_streams(AVFormatContext *s, const char *addr);
+/**
+ * Parse a SDP description of streams by populating an RTSPState struct
+ * within the AVFormatContext.
+ */
+int ff_sdp_parse(AVFormatContext *s, const char *content);
+
+/**
+ * Receive one RTP packet from an TCP interleaved RTSP stream.
+ */
+int ff_rtsp_tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
+ uint8_t *buf, int buf_size);
+
+/**
+ * Receive one packet from the RTSPStreams set up in the AVFormatContext
+ * (which should contain a RTSPState struct as priv_data).
+ */
+int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt);
+
#endif /* AVFORMAT_RTSP_H */
Copied and modified: trunk/libavformat/rtspdec.c (from r25600, trunk/libavformat/rtsp.c)
==============================================================================
--- trunk/libavformat/rtsp.c Fri Oct 29 10:41:49 2010 (r25600, copy source)
+++ trunk/libavformat/rtspdec.c Fri Oct 29 10:43:57 2010 (r25601)
@@ -1,5 +1,5 @@
/*
- * RTSP/SDP client
+ * RTSP demuxer
* Copyright (c) 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
@@ -19,1164 +19,19 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/base64.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
-#include "libavutil/random_seed.h"
#include "avformat.h"
-#include <sys/time.h>
-#if HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#include <strings.h>
#include "internal.h"
#include "network.h"
#include "os_support.h"
-#include "http.h"
#include "rtsp.h"
-
-#include "rtpdec.h"
#include "rdt.h"
-#include "rtpdec_formats.h"
-#include "rtpenc_chain.h"
//#define DEBUG
//#define DEBUG_RTP_TCP
-/* Timeout values for socket select, in ms,
- * and read_packet(), in seconds */
-#define SELECT_TIMEOUT_MS 100
-#define READ_PACKET_TIMEOUT_S 10
-#define MAX_TIMEOUTS READ_PACKET_TIMEOUT_S * 1000 / SELECT_TIMEOUT_MS
-#define SDP_MAX_SIZE 16384
-#define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
-
-static void get_word_until_chars(char *buf, int buf_size,
- const char *sep, const char **pp)
-{
- const char *p;
- char *q;
-
- p = *pp;
- p += strspn(p, SPACE_CHARS);
- q = buf;
- while (!strchr(sep, *p) && *p != '\0') {
- if ((q - buf) < buf_size - 1)
- *q++ = *p;
- p++;
- }
- if (buf_size > 0)
- *q = '\0';
- *pp = p;
-}
-
-static void get_word_sep(char *buf, int buf_size, const char *sep,
- const char **pp)
-{
- if (**pp == '/') (*pp)++;
- get_word_until_chars(buf, buf_size, sep, pp);
-}
-
-static void get_word(char *buf, int buf_size, const char **pp)
-{
- get_word_until_chars(buf, buf_size, SPACE_CHARS, pp);
-}
-
-/** 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];
-
- p += strspn(p, SPACE_CHARS);
- if (!av_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);
-}
-
-static int get_sockaddr(const char *buf, struct sockaddr_storage *sock)
-{
- struct addrinfo hints, *ai = NULL;
- memset(&hints, 0, sizeof(hints));
- hints.ai_flags = AI_NUMERICHOST;
- if (getaddrinfo(buf, NULL, &hints, &ai))
- return -1;
- memcpy(sock, ai->ai_addr, FFMIN(sizeof(*sock), ai->ai_addrlen));
- freeaddrinfo(ai);
- return 0;
-}
-
-#if CONFIG_RTPDEC
-/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */
-static int sdp_parse_rtpmap(AVFormatContext *s,
- AVCodecContext *codec, RTSPStream *rtsp_st,
- int payload_type, const char *p)
-{
- char buf[256];
- int i;
- AVCodec *c;
- const char *c_name;
-
- /* Loop into AVRtpDynamicPayloadTypes[] and AVRtpPayloadTypes[] and
- * see if we can handle this kind of payload.
- * The space should normally not be there but some Real streams or
- * particular servers ("RealServer Version 6.1.3.970", see issue 1658)
- * have a trailing space. */
- get_word_sep(buf, sizeof(buf), "/ ", &p);
- if (payload_type >= RTP_PT_PRIVATE) {
- RTPDynamicProtocolHandler *handler;
- for (handler = RTPFirstDynamicPayloadHandler;
- handler; handler = handler->next) {
- if (!strcasecmp(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;
- }
- }
- /* If no dynamic handler was found, check with the list of standard
- * allocated types, if such a stream for some reason happens to
- * use a private payload type. This isn't handled in rtpdec.c, since
- * the format name from the rtpmap line never is passed into rtpdec. */
- if (!rtsp_st->dynamic_handler)
- codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
- } else {
- /* We are in a standard case
- * (from http://www.iana.org/assignments/rtp-parameters). */
- /* search into AVRtpPayloadTypes[] */
- codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
- }
-
- c = avcodec_find_decoder(codec->codec_id);
- if (c && c->name)
- c_name = c->name;
- else
- c_name = "(null)";
-
- get_word_sep(buf, sizeof(buf), "/", &p);
- i = atoi(buf);
- switch (codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
- codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
- codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
- if (i > 0) {
- codec->sample_rate = i;
- get_word_sep(buf, sizeof(buf), "/", &p);
- 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. Patch on its way. (rdm)
- }
- av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
- codec->sample_rate);
- av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n",
- codec->channels);
- break;
- case AVMEDIA_TYPE_VIDEO:
- av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
- break;
- default:
- break;
- }
- return 0;
-}
-
-/* parse the attribute line from the fmtp a line of an sdp response. This
- * is broken out as a function because it is used in rtp_h264.c, which is
- * forthcoming. */
-int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
- char *value, int value_size)
-{
- *p += strspn(*p, SPACE_CHARS);
- 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;
-}
-
-typedef struct SDPParseState {
- /* SDP only */
- struct sockaddr_storage default_ip;
- int default_ttl;
- int skip_media; ///< set if an unknown m= line occurs
-} SDPParseState;
-
-static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
- int letter, const char *buf)
-{
- RTSPState *rt = s->priv_data;
- char buf1[64], st_type[64];
- const char *p;
- enum AVMediaType codec_type;
- int payload_type, i;
- AVStream *st;
- RTSPStream *rtsp_st;
- struct sockaddr_storage sdp_ip;
- int ttl;
-
- dprintf(s, "sdp: %c='%s'\n", letter, buf);
-
- p = buf;
- if (s1->skip_media && letter != 'm')
- return;
- switch (letter) {
- case 'c':
- get_word(buf1, sizeof(buf1), &p);
- if (strcmp(buf1, "IN") != 0)
- return;
- get_word(buf1, sizeof(buf1), &p);
- if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6"))
- return;
- get_word_sep(buf1, sizeof(buf1), "/", &p);
- if (get_sockaddr(buf1, &sdp_ip))
- return;
- ttl = 16;
- if (*p == '/') {
- p++;
- get_word_sep(buf1, sizeof(buf1), "/", &p);
- ttl = atoi(buf1);
- }
- if (s->nb_streams == 0) {
- s1->default_ip = sdp_ip;
- s1->default_ttl = ttl;
- } else {
- st = s->streams[s->nb_streams - 1];
- rtsp_st = st->priv_data;
- rtsp_st->sdp_ip = sdp_ip;
- rtsp_st->sdp_ttl = ttl;
- }
- break;
- case 's':
- av_metadata_set2(&s->metadata, "title", p, 0);
- break;
- case 'i':
- if (s->nb_streams == 0) {
- av_metadata_set2(&s->metadata, "comment", p, 0);
- break;
- }
- break;
- case 'm':
- /* new stream */
- s1->skip_media = 0;
- get_word(st_type, sizeof(st_type), &p);
- if (!strcmp(st_type, "audio")) {
- codec_type = AVMEDIA_TYPE_AUDIO;
- } else if (!strcmp(st_type, "video")) {
- codec_type = AVMEDIA_TYPE_VIDEO;
- } else if (!strcmp(st_type, "application")) {
- codec_type = AVMEDIA_TYPE_DATA;
- } else {
- s1->skip_media = 1;
- return;
- }
- rtsp_st = av_mallocz(sizeof(RTSPStream));
- if (!rtsp_st)
- return;
- rtsp_st->stream_index = -1;
- dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
-
- rtsp_st->sdp_ip = s1->default_ip;
- rtsp_st->sdp_ttl = s1->default_ttl;
-
- get_word(buf1, sizeof(buf1), &p); /* port */
- rtsp_st->sdp_port = atoi(buf1);
-
- get_word(buf1, sizeof(buf1), &p); /* protocol (ignored) */
-
- /* XXX: handle list of formats */
- get_word(buf1, sizeof(buf1), &p); /* format list */
- rtsp_st->sdp_payload_type = atoi(buf1);
-
- if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) {
- /* no corresponding stream */
- } else {
- st = av_new_stream(s, 0);
- if (!st)
- return;
- st->priv_data = rtsp_st;
- rtsp_st->stream_index = st->index;
- st->codec->codec_type = codec_type;
- if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) {
- /* if standard payload type, we can find the codec right now */
- ff_rtp_get_codec_info(st->codec, rtsp_st->sdp_payload_type);
- }
- }
- /* put a default control url */
- av_strlcpy(rtsp_st->control_url, rt->control_uri,
- sizeof(rtsp_st->control_url));
- break;
- case 'a':
- if (av_strstart(p, "control:", &p)) {
- if (s->nb_streams == 0) {
- if (!strncmp(p, "rtsp://", 7))
- av_strlcpy(rt->control_uri, p,
- sizeof(rt->control_uri));
- } else {
- char proto[32];
- /* get the control url */
- st = s->streams[s->nb_streams - 1];
- rtsp_st = st->priv_data;
-
- /* XXX: may need to add full url resolution */
- av_url_split(proto, sizeof(proto), NULL, 0, NULL, 0,
- NULL, NULL, 0, p);
- if (proto[0] == '\0') {
- /* relative control URL */
- if (rtsp_st->control_url[strlen(rtsp_st->control_url)-1]!='/')
- av_strlcat(rtsp_st->control_url, "/",
- sizeof(rtsp_st->control_url));
- av_strlcat(rtsp_st->control_url, p,
- sizeof(rtsp_st->control_url));
- } else
- av_strlcpy(rtsp_st->control_url, p,
- sizeof(rtsp_st->control_url));
- }
- } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) {
- /* NOTE: rtpmap is only supported AFTER the 'm=' tag */
- get_word(buf1, sizeof(buf1), &p);
- payload_type = atoi(buf1);
- st = s->streams[s->nb_streams - 1];
- rtsp_st = st->priv_data;
- sdp_parse_rtpmap(s, st->codec, rtsp_st, payload_type, p);
- } else if (av_strstart(p, "fmtp:", &p) ||
- av_strstart(p, "framesize:", &p)) {
- /* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */
- // 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 &&
- rtsp_st->dynamic_handler &&
- rtsp_st->dynamic_handler->parse_sdp_a_line)
- rtsp_st->dynamic_handler->parse_sdp_a_line(s, i,
- rtsp_st->dynamic_protocol_context, buf);
- }
- } else if (av_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;
- /* AV_NOPTS_VALUE means live broadcast (and can't seek) */
- s->duration = (end == AV_NOPTS_VALUE) ?
- AV_NOPTS_VALUE : end - start;
- } else if (av_strstart(p, "IsRealDataType:integer;",&p)) {
- if (atoi(p) == 1)
- rt->transport = RTSP_TRANSPORT_RDT;
- } else {
- if (rt->server_type == RTSP_SERVER_WMS)
- ff_wms_parse_sdp_a_line(s, p);
- if (s->nb_streams > 0) {
- if (rt->server_type == RTSP_SERVER_REAL)
- ff_real_parse_sdp_a_line(s, s->nb_streams - 1, p);
-
- rtsp_st = s->streams[s->nb_streams - 1]->priv_data;
- if (rtsp_st->dynamic_handler &&
- rtsp_st->dynamic_handler->parse_sdp_a_line)
- rtsp_st->dynamic_handler->parse_sdp_a_line(s,
- s->nb_streams - 1,
- rtsp_st->dynamic_protocol_context, buf);
- }
- }
- break;
- }
-}
-
-static int sdp_parse(AVFormatContext *s, const char *content)
-{
- const char *p;
- int letter;
- /* Some SDP lines, particularly for Realmedia or ASF RTSP streams,
- * contain long SDP lines containing complete ASF Headers (several
- * kB) or arrays of MDPR (RM stream descriptor) headers plus
- * "rulebooks" describing their properties. Therefore, the SDP line
- * buffer is large.
- *
- * The Vorbis FMTP line can be up to 16KB - see xiph_parse_sdp_line
- * in rtpdec_xiph.c. */
- char buf[16384], *q;
- SDPParseState sdp_parse_state, *s1 = &sdp_parse_state;
-
- memset(s1, 0, sizeof(SDPParseState));
- p = content;
- for (;;) {
- p += strspn(p, SPACE_CHARS);
- letter = *p;
- if (letter == '\0')
- break;
- p++;
- if (*p != '=')
- goto next_line;
- p++;
- /* get the content */
- q = buf;
- while (*p != '\n' && *p != '\r' && *p != '\0') {
- if ((q - buf) < sizeof(buf) - 1)
- *q++ = *p;
- p++;
- }
- *q = '\0';
- sdp_parse_line(s, s1, letter, buf);
- next_line:
- while (*p != '\n' && *p != '\0')
- p++;
- if (*p == '\n')
- p++;
- }
- return 0;
-}
-#endif /* CONFIG_RTPDEC */
-
-/* close and free RTSP streams */
-void ff_rtsp_close_streams(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- int i;
- RTSPStream *rtsp_st;
-
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- rtsp_st = rt->rtsp_streams[i];
- if (rtsp_st) {
- if (rtsp_st->transport_priv) {
- if (s->oformat) {
- AVFormatContext *rtpctx = rtsp_st->transport_priv;
- av_write_trailer(rtpctx);
- if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
- uint8_t *ptr;
- url_close_dyn_buf(rtpctx->pb, &ptr);
- av_free(ptr);
- } else {
- url_fclose(rtpctx->pb);
- }
- av_metadata_free(&rtpctx->streams[0]->metadata);
- av_metadata_free(&rtpctx->metadata);
- av_free(rtpctx->streams[0]);
- av_free(rtpctx);
- } else if (rt->transport == RTSP_TRANSPORT_RDT && CONFIG_RTPDEC)
- ff_rdt_parse_close(rtsp_st->transport_priv);
- else if (CONFIG_RTPDEC)
- rtp_parse_close(rtsp_st->transport_priv);
- }
- 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(rt->rtsp_streams);
- if (rt->asf_ctx) {
- av_close_input_stream (rt->asf_ctx);
- rt->asf_ctx = NULL;
- }
- av_free(rt->recvbuf);
-}
-
-static int rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
-{
- RTSPState *rt = s->priv_data;
- AVStream *st = NULL;
-
- /* open the RTP context */
- if (rtsp_st->stream_index >= 0)
- st = s->streams[rtsp_st->stream_index];
- if (!st)
- s->ctx_flags |= AVFMTCTX_NOHEADER;
-
- if (s->oformat && CONFIG_RTSP_MUXER) {
- rtsp_st->transport_priv = ff_rtp_chain_mux_open(s, st,
- rtsp_st->rtp_handle,
- RTSP_TCP_MAX_PACKET_SIZE);
- /* Ownership of rtp_handle is passed to the rtp mux context */
- rtsp_st->rtp_handle = NULL;
- } else if (rt->transport == RTSP_TRANSPORT_RDT && CONFIG_RTPDEC)
- rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index,
- rtsp_st->dynamic_protocol_context,
- rtsp_st->dynamic_handler);
- else if (CONFIG_RTPDEC)
- rtsp_st->transport_priv = rtp_parse_open(s, st, rtsp_st->rtp_handle,
- rtsp_st->sdp_payload_type,
- (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP || !s->max_delay)
- ? 0 : RTP_REORDER_QUEUE_DEFAULT_SIZE);
-
- if (!rtsp_st->transport_priv) {
- return AVERROR(ENOMEM);
- } else if (rt->transport != RTSP_TRANSPORT_RDT && CONFIG_RTPDEC) {
- if (rtsp_st->dynamic_handler) {
- rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv,
- rtsp_st->dynamic_protocol_context,
- rtsp_st->dynamic_handler);
- }
- }
-
- return 0;
-}
-
-#if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
-static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
-{
- const char *p;
- int v;
-
- p = *pp;
- p += strspn(p, SPACE_CHARS);
- v = strtol(p, (char **)&p, 10);
- if (*p == '-') {
- p++;
- *min_ptr = v;
- v = strtol(p, (char **)&p, 10);
- *max_ptr = v;
- } else {
- *min_ptr = v;
- *max_ptr = v;
- }
- *pp = p;
-}
-
-/* XXX: only one transport specification is parsed */
-static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p)
-{
- char transport_protocol[16];
- char profile[16];
- char lower_transport[16];
- char parameter[16];
- RTSPTransportField *th;
- char buf[256];
-
- reply->nb_transports = 0;
-
- for (;;) {
- p += strspn(p, SPACE_CHARS);
- if (*p == '\0')
- break;
-
- th = &reply->transports[reply->nb_transports];
-
- get_word_sep(transport_protocol, sizeof(transport_protocol),
- "/", &p);
- if (!strcasecmp (transport_protocol, "rtp")) {
- get_word_sep(profile, sizeof(profile), "/;,", &p);
- lower_transport[0] = '\0';
- /* rtp/avp/<protocol> */
- if (*p == '/') {
- get_word_sep(lower_transport, sizeof(lower_transport),
- ";,", &p);
- }
- th->transport = RTSP_TRANSPORT_RTP;
- } else if (!strcasecmp (transport_protocol, "x-pn-tng") ||
- !strcasecmp (transport_protocol, "x-real-rdt")) {
- /* x-pn-tng/<protocol> */
- get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p);
- profile[0] = '\0';
- th->transport = RTSP_TRANSPORT_RDT;
- }
- if (!strcasecmp(lower_transport, "TCP"))
- th->lower_transport = RTSP_LOWER_TRANSPORT_TCP;
- else
- th->lower_transport = RTSP_LOWER_TRANSPORT_UDP;
-
- if (*p == ';')
- p++;
- /* get each parameter */
- while (*p != '\0' && *p != ',') {
- get_word_sep(parameter, sizeof(parameter), "=;,", &p);
- if (!strcmp(parameter, "port")) {
- if (*p == '=') {
- p++;
- rtsp_parse_range(&th->port_min, &th->port_max, &p);
- }
- } else if (!strcmp(parameter, "client_port")) {
- if (*p == '=') {
- p++;
- rtsp_parse_range(&th->client_port_min,
- &th->client_port_max, &p);
- }
- } else if (!strcmp(parameter, "server_port")) {
- if (*p == '=') {
- p++;
- rtsp_parse_range(&th->server_port_min,
- &th->server_port_max, &p);
- }
- } else if (!strcmp(parameter, "interleaved")) {
- if (*p == '=') {
- p++;
- rtsp_parse_range(&th->interleaved_min,
- &th->interleaved_max, &p);
- }
- } else if (!strcmp(parameter, "multicast")) {
- if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP)
- th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST;
- } else if (!strcmp(parameter, "ttl")) {
- if (*p == '=') {
- p++;
- th->ttl = strtol(p, (char **)&p, 10);
- }
- } else if (!strcmp(parameter, "destination")) {
- if (*p == '=') {
- p++;
- get_word_sep(buf, sizeof(buf), ";,", &p);
- get_sockaddr(buf, &th->destination);
- }
- } else if (!strcmp(parameter, "source")) {
- if (*p == '=') {
- p++;
- get_word_sep(buf, sizeof(buf), ";,", &p);
- av_strlcpy(th->source, buf, sizeof(th->source));
- }
- }
-
- while (*p != ';' && *p != '\0' && *p != ',')
- p++;
- if (*p == ';')
- p++;
- }
- if (*p == ',')
- p++;
-
- reply->nb_transports++;
- }
-}
-
-void ff_rtsp_parse_line(RTSPMessageHeader *reply, const char *buf,
- HTTPAuthState *auth_state)
-{
- const char *p;
-
- /* NOTE: we do case independent match for broken servers */
- p = buf;
- if (av_stristart(p, "Session:", &p)) {
- int t;
- get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
- if (av_stristart(p, ";timeout=", &p) &&
- (t = strtol(p, NULL, 10)) > 0) {
- reply->timeout = t;
- }
- } else if (av_stristart(p, "Content-Length:", &p)) {
- reply->content_length = strtol(p, NULL, 10);
- } else if (av_stristart(p, "Transport:", &p)) {
- rtsp_parse_transport(reply, p);
- } else if (av_stristart(p, "CSeq:", &p)) {
- reply->seq = strtol(p, NULL, 10);
- } else if (av_stristart(p, "Range:", &p)) {
- rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
- } else if (av_stristart(p, "RealChallenge1:", &p)) {
- p += strspn(p, SPACE_CHARS);
- av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge));
- } else if (av_stristart(p, "Server:", &p)) {
- p += strspn(p, SPACE_CHARS);
- av_strlcpy(reply->server, p, sizeof(reply->server));
- } else if (av_stristart(p, "Notice:", &p) ||
- av_stristart(p, "X-Notice:", &p)) {
- reply->notice = strtol(p, NULL, 10);
- } else if (av_stristart(p, "Location:", &p)) {
- p += strspn(p, SPACE_CHARS);
- av_strlcpy(reply->location, p , sizeof(reply->location));
- } else if (av_stristart(p, "WWW-Authenticate:", &p) && auth_state) {
- p += strspn(p, SPACE_CHARS);
- ff_http_auth_handle_header(auth_state, "WWW-Authenticate", p);
- } else if (av_stristart(p, "Authentication-Info:", &p) && auth_state) {
- p += strspn(p, SPACE_CHARS);
- ff_http_auth_handle_header(auth_state, "Authentication-Info", p);
- }
-}
-
-/* skip a RTP/TCP interleaved packet */
-void ff_rtsp_skip_packet(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- int ret, len, len1;
- uint8_t buf[1024];
-
- ret = url_read_complete(rt->rtsp_hd, buf, 3);
- if (ret != 3)
- return;
- len = AV_RB16(buf + 1);
-
- dprintf(s, "skipping RTP packet len=%d\n", len);
-
- /* skip payload */
- while (len > 0) {
- len1 = len;
- if (len1 > sizeof(buf))
- len1 = sizeof(buf);
- ret = url_read_complete(rt->rtsp_hd, buf, len1);
- if (ret != len1)
- return;
- len -= len1;
- }
-}
-
-int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply,
- unsigned char **content_ptr,
- int return_on_interleaved_data)
-{
- RTSPState *rt = s->priv_data;
- char buf[4096], buf1[1024], *q;
- unsigned char ch;
- const char *p;
- int ret, content_length, line_count = 0;
- unsigned char *content = NULL;
-
- memset(reply, 0, sizeof(*reply));
-
- /* parse reply (XXX: use buffers) */
- rt->last_reply[0] = '\0';
- for (;;) {
- q = buf;
- for (;;) {
- ret = url_read_complete(rt->rtsp_hd, &ch, 1);
-#ifdef DEBUG_RTP_TCP
- dprintf(s, "ret=%d c=%02x [%c]\n", ret, ch, ch);
-#endif
- if (ret != 1)
- return AVERROR_EOF;
- if (ch == '\n')
- break;
- if (ch == '$') {
- /* XXX: only parse it if first char on line ? */
- if (return_on_interleaved_data) {
- return 1;
- } else
- ff_rtsp_skip_packet(s);
- } else if (ch != '\r') {
- if ((q - buf) < sizeof(buf) - 1)
- *q++ = ch;
- }
- }
- *q = '\0';
-
- dprintf(s, "line='%s'\n", buf);
-
- /* test if last line */
- if (buf[0] == '\0')
- break;
- p = buf;
- if (line_count == 0) {
- /* get reply code */
- get_word(buf1, sizeof(buf1), &p);
- get_word(buf1, sizeof(buf1), &p);
- reply->status_code = atoi(buf1);
- av_strlcpy(reply->reason, p, sizeof(reply->reason));
- } else {
- ff_rtsp_parse_line(reply, p, &rt->auth_state);
- av_strlcat(rt->last_reply, p, sizeof(rt->last_reply));
- av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply));
- }
- line_count++;
- }
-
- if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0')
- av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id));
-
- content_length = reply->content_length;
- if (content_length > 0) {
- /* leave some room for a trailing '\0' (useful for simple parsing) */
- content = av_malloc(content_length + 1);
- (void)url_read_complete(rt->rtsp_hd, content, content_length);
- content[content_length] = '\0';
- }
- if (content_ptr)
- *content_ptr = content;
- else
- av_free(content);
-
- if (rt->seq != reply->seq) {
- av_log(s, AV_LOG_WARNING, "CSeq %d expected, %d received.\n",
- rt->seq, reply->seq);
- }
-
- /* EOS */
- if (reply->notice == 2101 /* End-of-Stream Reached */ ||
- reply->notice == 2104 /* Start-of-Stream Reached */ ||
- reply->notice == 2306 /* Continuous Feed Terminated */) {
- rt->state = RTSP_STATE_IDLE;
- } else if (reply->notice >= 4400 && reply->notice < 5500) {
- return AVERROR(EIO); /* data or server error */
- } else if (reply->notice == 2401 /* Ticket Expired */ ||
- (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ )
- return AVERROR(EPERM);
-
- return 0;
-}
-
-int ff_rtsp_send_cmd_with_content_async(AVFormatContext *s,
- const char *method, const char *url,
- const char *headers,
- const unsigned char *send_content,
- int send_content_length)
-{
- RTSPState *rt = s->priv_data;
- char buf[4096], *out_buf;
- char base64buf[AV_BASE64_SIZE(sizeof(buf))];
-
- /* Add in RTSP headers */
- out_buf = buf;
- rt->seq++;
- snprintf(buf, sizeof(buf), "%s %s RTSP/1.0\r\n", method, url);
- if (headers)
- av_strlcat(buf, headers, sizeof(buf));
- av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", rt->seq);
- if (rt->session_id[0] != '\0' && (!headers ||
- !strstr(headers, "\nIf-Match:"))) {
- av_strlcatf(buf, sizeof(buf), "Session: %s\r\n", rt->session_id);
- }
- if (rt->auth[0]) {
- char *str = ff_http_auth_create_response(&rt->auth_state,
- rt->auth, url, method);
- if (str)
- av_strlcat(buf, str, sizeof(buf));
- av_free(str);
- }
- if (send_content_length > 0 && send_content)
- av_strlcatf(buf, sizeof(buf), "Content-Length: %d\r\n", send_content_length);
- av_strlcat(buf, "\r\n", sizeof(buf));
-
- /* base64 encode rtsp if tunneling */
- if (rt->control_transport == RTSP_MODE_TUNNEL) {
- av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
- out_buf = base64buf;
- }
-
- dprintf(s, "Sending:\n%s--\n", buf);
-
- url_write(rt->rtsp_hd_out, out_buf, strlen(out_buf));
- if (send_content_length > 0 && send_content) {
- if (rt->control_transport == RTSP_MODE_TUNNEL) {
- av_log(s, AV_LOG_ERROR, "tunneling of RTSP requests "
- "with content data not supported\n");
- return AVERROR_PATCHWELCOME;
- }
- url_write(rt->rtsp_hd_out, send_content, send_content_length);
- }
- rt->last_cmd_time = av_gettime();
-
- return 0;
-}
-
-int ff_rtsp_send_cmd_async(AVFormatContext *s, const char *method,
- const char *url, const char *headers)
-{
- return ff_rtsp_send_cmd_with_content_async(s, method, url, headers, NULL, 0);
-}
-
-int ff_rtsp_send_cmd(AVFormatContext *s, const char *method, const char *url,
- const char *headers, RTSPMessageHeader *reply,
- unsigned char **content_ptr)
-{
- return ff_rtsp_send_cmd_with_content(s, method, url, headers, reply,
- content_ptr, NULL, 0);
-}
-
-int ff_rtsp_send_cmd_with_content(AVFormatContext *s,
- const char *method, const char *url,
- const char *header,
- RTSPMessageHeader *reply,
- unsigned char **content_ptr,
- const unsigned char *send_content,
- int send_content_length)
-{
- RTSPState *rt = s->priv_data;
- HTTPAuthType cur_auth_type;
- int ret;
-
-retry:
- cur_auth_type = rt->auth_state.auth_type;
- if ((ret = ff_rtsp_send_cmd_with_content_async(s, method, url, header,
- send_content,
- send_content_length)))
- return ret;
-
- if ((ret = ff_rtsp_read_reply(s, reply, content_ptr, 0) ) < 0)
- return ret;
-
- if (reply->status_code == 401 && cur_auth_type == HTTP_AUTH_NONE &&
- rt->auth_state.auth_type != HTTP_AUTH_NONE)
- goto retry;
-
- if (reply->status_code > 400){
- av_log(s, AV_LOG_ERROR, "method %s failed: %d%s\n",
- method,
- reply->status_code,
- reply->reason);
- av_log(s, AV_LOG_DEBUG, "%s\n", rt->last_reply);
- }
-
- return 0;
-}
-
-/**
- * @return 0 on success, <0 on error, 1 if protocol is unavailable.
- */
-static int make_setup_request(AVFormatContext *s, const char *host, int port,
- int lower_transport, const char *real_challenge)
-{
- RTSPState *rt = s->priv_data;
- int rtx, j, i, err, interleave = 0;
- RTSPStream *rtsp_st;
- RTSPMessageHeader reply1, *reply = &reply1;
- char cmd[2048];
- const char *trans_pref;
-
- if (rt->transport == RTSP_TRANSPORT_RDT)
- trans_pref = "x-pn-tng";
- else
- trans_pref = "RTP/AVP";
-
- /* default timeout: 1 minute */
- rt->timeout = 60;
-
- /* for each stream, make the setup request */
- /* XXX: we assume the same server is used for the control of each
- * RTSP stream */
-
- for (j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) {
- char transport[2048];
-
- /**
- * WMS serves all UDP data over a single connection, the RTX, which
- * isn't necessarily the first in the SDP but has to be the first
- * to be set up, else the second/third SETUP will fail with a 461.
- */
- if (lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
- rt->server_type == RTSP_SERVER_WMS) {
- if (i == 0) {
- /* rtx first */
- for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {
- int len = strlen(rt->rtsp_streams[rtx]->control_url);
- if (len >= 4 &&
- !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4,
- "/rtx"))
- break;
- }
- if (rtx == rt->nb_rtsp_streams)
- return -1; /* no RTX found */
- rtsp_st = rt->rtsp_streams[rtx];
- } else
- rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1];
- } else
- rtsp_st = rt->rtsp_streams[i];
-
- /* RTP/UDP */
- if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) {
- char buf[256];
-
- if (rt->server_type == RTSP_SERVER_WMS && i > 1) {
- port = reply->transports[0].client_port_min;
- goto have_port;
- }
-
- /* first try in specified port range */
- if (RTSP_RTP_PORT_MIN != 0) {
- while (j <= RTSP_RTP_PORT_MAX) {
- ff_url_join(buf, sizeof(buf), "rtp", NULL, host, -1,
- "?localport=%d", j);
- /* we will use two ports per rtp stream (rtp and rtcp) */
- j += 2;
- if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0)
- goto rtp_opened;
- }
- }
-
-#if 0
- /* then try on any port */
- if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-#endif
-
- rtp_opened:
- port = rtp_get_local_rtp_port(rtsp_st->rtp_handle);
- have_port:
- snprintf(transport, sizeof(transport) - 1,
- "%s/UDP;", trans_pref);
- if (rt->server_type != RTSP_SERVER_REAL)
- av_strlcat(transport, "unicast;", sizeof(transport));
- av_strlcatf(transport, sizeof(transport),
- "client_port=%d", port);
- if (rt->transport == RTSP_TRANSPORT_RTP &&
- !(rt->server_type == RTSP_SERVER_WMS && i > 0))
- av_strlcatf(transport, sizeof(transport), "-%d", port + 1);
- }
-
- /* RTP/TCP */
- else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
- /** For WMS streams, the application streams are only used for
- * UDP. When trying to set it up for TCP streams, the server
- * will return an error. Therefore, we skip those streams. */
- if (rt->server_type == RTSP_SERVER_WMS &&
- s->streams[rtsp_st->stream_index]->codec->codec_type ==
- AVMEDIA_TYPE_DATA)
- continue;
- snprintf(transport, sizeof(transport) - 1,
- "%s/TCP;", trans_pref);
- if (rt->server_type == RTSP_SERVER_WMS)
- av_strlcat(transport, "unicast;", sizeof(transport));
- av_strlcatf(transport, sizeof(transport),
- "interleaved=%d-%d",
- interleave, interleave + 1);
- interleave += 2;
- }
-
- else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) {
- snprintf(transport, sizeof(transport) - 1,
- "%s/UDP;multicast", trans_pref);
- }
- if (s->oformat) {
- av_strlcat(transport, ";mode=receive", sizeof(transport));
- } else if (rt->server_type == RTSP_SERVER_REAL ||
- rt->server_type == RTSP_SERVER_WMS)
- av_strlcat(transport, ";mode=play", sizeof(transport));
- snprintf(cmd, sizeof(cmd),
- "Transport: %s\r\n",
- transport);
- if (i == 0 && rt->server_type == RTSP_SERVER_REAL && CONFIG_RTPDEC) {
- char real_res[41], real_csum[9];
- ff_rdt_calc_response_and_checksum(real_res, real_csum,
- real_challenge);
- av_strlcatf(cmd, sizeof(cmd),
- "If-Match: %s\r\n"
- "RealChallenge2: %s, sd=%s\r\n",
- rt->session_id, real_res, real_csum);
- }
- ff_rtsp_send_cmd(s, "SETUP", rtsp_st->control_url, cmd, reply, NULL);
- if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) {
- err = 1;
- goto fail;
- } else if (reply->status_code != RTSP_STATUS_OK ||
- reply->nb_transports != 1) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-
- /* XXX: same protocol for all streams is required */
- if (i > 0) {
- if (reply->transports[0].lower_transport != rt->lower_transport ||
- reply->transports[0].transport != rt->transport) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- } else {
- rt->lower_transport = reply->transports[0].lower_transport;
- rt->transport = reply->transports[0].transport;
- }
-
- /* close RTP connection if not chosen */
- if (reply->transports[0].lower_transport != RTSP_LOWER_TRANSPORT_UDP &&
- (lower_transport == RTSP_LOWER_TRANSPORT_UDP)) {
- url_close(rtsp_st->rtp_handle);
- rtsp_st->rtp_handle = NULL;
- }
-
- switch(reply->transports[0].lower_transport) {
- case RTSP_LOWER_TRANSPORT_TCP:
- rtsp_st->interleaved_min = reply->transports[0].interleaved_min;
- rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
- break;
-
- case RTSP_LOWER_TRANSPORT_UDP: {
- char url[1024];
-
- /* Use source address if specified */
- if (reply->transports[0].source[0]) {
- ff_url_join(url, sizeof(url), "rtp", NULL,
- reply->transports[0].source,
- reply->transports[0].server_port_min, NULL);
- } else {
- ff_url_join(url, sizeof(url), "rtp", NULL, host,
- reply->transports[0].server_port_min, NULL);
- }
- if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
- rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- /* Try to initialize the connection state in a
- * potential NAT router by sending dummy packets.
- * RTP/RTCP dummy packets are used for RDT, too.
- */
- if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && s->iformat &&
- CONFIG_RTPDEC)
- rtp_send_punch_packets(rtsp_st->rtp_handle);
- break;
- }
- case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: {
- char url[1024], namebuf[50];
- struct sockaddr_storage addr;
- int port, ttl;
-
- if (reply->transports[0].destination.ss_family) {
- addr = reply->transports[0].destination;
- port = reply->transports[0].port_min;
- ttl = reply->transports[0].ttl;
- } else {
- addr = rtsp_st->sdp_ip;
- port = rtsp_st->sdp_port;
- ttl = rtsp_st->sdp_ttl;
- }
- getnameinfo((struct sockaddr*) &addr, sizeof(addr),
- namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
- ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
- port, "?ttl=%d", ttl);
- if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- break;
- }
- }
-
- if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
- goto fail;
- }
-
- if (reply->timeout > 0)
- rt->timeout = reply->timeout;
-
- if (rt->server_type == RTSP_SERVER_REAL)
- rt->need_subscription = 1;
-
- return 0;
-
-fail:
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- if (rt->rtsp_streams[i]->rtp_handle) {
- url_close(rt->rtsp_streams[i]->rtp_handle);
- rt->rtsp_streams[i]->rtp_handle = NULL;
- }
- }
- return err;
-}
-
static int rtsp_read_play(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
@@ -1224,8 +79,7 @@ static int rtsp_read_play(AVFormatContex
return 0;
}
-#if CONFIG_RTSP_DEMUXER
-static int rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply)
+int ff_rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply)
{
RTSPState *rt = s->priv_data;
char cmd[1024];
@@ -1254,469 +108,14 @@ static int rtsp_setup_input_streams(AVFo
av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", content);
/* now we got the SDP description, we parse it */
- ret = sdp_parse(s, (const char *)content);
+ ret = ff_sdp_parse(s, (const char *)content);
av_freep(&content);
if (ret < 0)
return AVERROR_INVALIDDATA;
return 0;
}
-#else /* !CONFIG_RTSP_DEMUXER */
-/* A declaration of this function is needed so that the function is
- * defined when parsing the call to it, even if dead code elimination
- * will remove the call later.
- */
-static int rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply);
-#endif /* !CONFIG_RTSP_DEMUXER */
-
-void ff_rtsp_close_connections(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- if (rt->rtsp_hd_out != rt->rtsp_hd) url_close(rt->rtsp_hd_out);
- url_close(rt->rtsp_hd);
- rt->rtsp_hd = rt->rtsp_hd_out = NULL;
-}
-
-int ff_rtsp_connect(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
- char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128];
- char *option_list, *option, *filename;
- int port, err, tcp_fd;
- RTSPMessageHeader reply1 = {0}, *reply = &reply1;
- int lower_transport_mask = 0;
- char real_challenge[64];
- struct sockaddr_storage peer;
- socklen_t peer_len = sizeof(peer);
-
- if (!ff_network_init())
- return AVERROR(EIO);
-redirect:
- rt->control_transport = RTSP_MODE_PLAIN;
- /* extract hostname and port */
- av_url_split(NULL, 0, auth, sizeof(auth),
- host, sizeof(host), &port, path, sizeof(path), s->filename);
- if (*auth) {
- av_strlcpy(rt->auth, auth, sizeof(rt->auth));
- }
- if (port < 0)
- port = RTSP_DEFAULT_PORT;
-
- /* search for options */
- option_list = strrchr(path, '?');
- if (option_list) {
- /* Strip out the RTSP specific options, write out the rest of
- * the options back into the same string. */
- filename = option_list;
- 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")) {
- lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_UDP);
- } else if (!strcmp(option, "multicast")) {
- lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
- } else if (!strcmp(option, "tcp")) {
- lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_TCP);
- } else if(!strcmp(option, "http")) {
- lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_TCP);
- rt->control_transport = RTSP_MODE_TUNNEL;
- } else {
- /* Write options back into the buffer, using memmove instead
- * of strcpy since the strings may overlap. */
- int len = strlen(option);
- memmove(++filename, option, len);
- filename += len;
- if (option_list) *filename = '&';
- }
- }
- *filename = 0;
- }
-
- if (!lower_transport_mask)
- lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
-
- if (s->oformat) {
- /* Only UDP or TCP - UDP multicast isn't supported. */
- lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_UDP) |
- (1 << RTSP_LOWER_TRANSPORT_TCP);
- if (!lower_transport_mask || rt->control_transport == RTSP_MODE_TUNNEL) {
- av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, "
- "only UDP and TCP are supported for output.\n");
- err = AVERROR(EINVAL);
- goto fail;
- }
- }
-
- /* Construct the URI used in request; this is similar to s->filename,
- * but with authentication credentials removed and RTSP specific options
- * stripped out. */
- ff_url_join(rt->control_uri, sizeof(rt->control_uri), "rtsp", NULL,
- host, port, "%s", path);
-
- if (rt->control_transport == RTSP_MODE_TUNNEL) {
- /* set up initial handshake for tunneling */
- char httpname[1024];
- char sessioncookie[17];
- char headers[1024];
-
- ff_url_join(httpname, sizeof(httpname), "http", auth, host, port, "%s", path);
- snprintf(sessioncookie, sizeof(sessioncookie), "%08x%08x",
- av_get_random_seed(), av_get_random_seed());
- /* GET requests */
- if (url_alloc(&rt->rtsp_hd, httpname, URL_RDONLY) < 0) {
- err = AVERROR(EIO);
- goto fail;
- }
-
- /* generate GET headers */
- snprintf(headers, sizeof(headers),
- "x-sessioncookie: %s\r\n"
- "Accept: application/x-rtsp-tunnelled\r\n"
- "Pragma: no-cache\r\n"
- "Cache-Control: no-cache\r\n",
- sessioncookie);
- ff_http_set_headers(rt->rtsp_hd, headers);
-
- /* complete the connection */
- if (url_connect(rt->rtsp_hd)) {
- err = AVERROR(EIO);
- goto fail;
- }
-
- /* POST requests */
- if (url_alloc(&rt->rtsp_hd_out, httpname, URL_WRONLY) < 0 ) {
- err = AVERROR(EIO);
- goto fail;
- }
-
- /* generate POST headers */
- snprintf(headers, sizeof(headers),
- "x-sessioncookie: %s\r\n"
- "Content-Type: application/x-rtsp-tunnelled\r\n"
- "Pragma: no-cache\r\n"
- "Cache-Control: no-cache\r\n"
- "Content-Length: 32767\r\n"
- "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
- sessioncookie);
- ff_http_set_headers(rt->rtsp_hd_out, headers);
- ff_http_set_chunked_transfer_encoding(rt->rtsp_hd_out, 0);
-
- /* Initialize the authentication state for the POST session. The HTTP
- * protocol implementation doesn't properly handle multi-pass
- * authentication for POST requests, since it would require one of
- * the following:
- * - implementing Expect: 100-continue, which many HTTP servers
- * don't support anyway, even less the RTSP servers that do HTTP
- * tunneling
- * - sending the whole POST data until getting a 401 reply specifying
- * what authentication method to use, then resending all that data
- * - waiting for potential 401 replies directly after sending the
- * POST header (waiting for some unspecified time)
- * Therefore, we copy the full auth state, which works for both basic
- * and digest. (For digest, we would have to synchronize the nonce
- * count variable between the two sessions, if we'd do more requests
- * with the original session, though.)
- */
- ff_http_init_auth_state(rt->rtsp_hd_out, rt->rtsp_hd);
-
- /* complete the connection */
- if (url_connect(rt->rtsp_hd_out)) {
- err = AVERROR(EIO);
- goto fail;
- }
- } else {
- /* open the tcp connection */
- ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, host, port, NULL);
- if (url_open(&rt->rtsp_hd, tcpname, URL_RDWR) < 0) {
- err = AVERROR(EIO);
- goto fail;
- }
- rt->rtsp_hd_out = rt->rtsp_hd;
- }
- rt->seq = 0;
-
- tcp_fd = url_get_file_handle(rt->rtsp_hd);
- if (!getpeername(tcp_fd, (struct sockaddr*) &peer, &peer_len)) {
- getnameinfo((struct sockaddr*) &peer, peer_len, host, sizeof(host),
- NULL, 0, NI_NUMERICHOST);
- }
-
- /* request options supported by the server; this also detects server
- * type */
- for (rt->server_type = RTSP_SERVER_RTP;;) {
- cmd[0] = 0;
- if (rt->server_type == RTSP_SERVER_REAL)
- av_strlcat(cmd,
- /**
- * The following entries are required for proper
- * streaming from a Realmedia server. They are
- * interdependent in some way although we currently
- * don't quite understand how. Values were copied
- * from mplayer SVN r23589.
- * @param CompanyID is a 16-byte ID in base64
- * @param ClientChallenge is a 16-byte ID in hex
- */
- "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
- "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
- "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
- "GUID: 00000000-0000-0000-0000-000000000000\r\n",
- sizeof(cmd));
- ff_rtsp_send_cmd(s, "OPTIONS", rt->control_uri, cmd, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-
- /* detect server type if not standard-compliant RTP */
- if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) {
- rt->server_type = RTSP_SERVER_REAL;
- continue;
- } else if (!strncasecmp(reply->server, "WMServer/", 9)) {
- rt->server_type = RTSP_SERVER_WMS;
- } else if (rt->server_type == RTSP_SERVER_REAL)
- strcpy(real_challenge, reply->real_challenge);
- break;
- }
-
- if (s->iformat && CONFIG_RTSP_DEMUXER)
- err = rtsp_setup_input_streams(s, reply);
- else if (CONFIG_RTSP_MUXER)
- err = ff_rtsp_setup_output_streams(s, host);
- if (err)
- goto fail;
-
- do {
- int lower_transport = ff_log2_tab[lower_transport_mask &
- ~(lower_transport_mask - 1)];
-
- err = make_setup_request(s, host, port, lower_transport,
- rt->server_type == RTSP_SERVER_REAL ?
- real_challenge : NULL);
- if (err < 0)
- goto fail;
- lower_transport_mask &= ~(1 << lower_transport);
- if (lower_transport_mask == 0 && err == 1) {
- err = FF_NETERROR(EPROTONOSUPPORT);
- goto fail;
- }
- } while (err);
-
- rt->state = RTSP_STATE_IDLE;
- rt->seek_timestamp = 0; /* default is to start stream at position zero */
- return 0;
- fail:
- ff_rtsp_close_streams(s);
- ff_rtsp_close_connections(s);
- if (reply->status_code >=300 && reply->status_code < 400 && s->iformat) {
- av_strlcpy(s->filename, reply->location, sizeof(s->filename));
- av_log(s, AV_LOG_INFO, "Status %d: Redirecting to %s\n",
- reply->status_code,
- s->filename);
- goto redirect;
- }
- ff_network_close();
- return err;
-}
-#endif /* CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER */
-
-#if CONFIG_RTPDEC
-static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
- uint8_t *buf, int buf_size, int64_t wait_end)
-{
- RTSPState *rt = s->priv_data;
- RTSPStream *rtsp_st;
- fd_set rfds;
- int fd, fd_rtcp, fd_max, n, i, ret, tcp_fd, timeout_cnt = 0;
- struct timeval tv;
-
- for (;;) {
- if (url_interrupt_cb())
- return AVERROR(EINTR);
- if (wait_end && wait_end - av_gettime() < 0)
- return AVERROR(EAGAIN);
- FD_ZERO(&rfds);
- if (rt->rtsp_hd) {
- tcp_fd = fd_max = url_get_file_handle(rt->rtsp_hd);
- FD_SET(tcp_fd, &rfds);
- } else {
- fd_max = 0;
- tcp_fd = -1;
- }
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- rtsp_st = rt->rtsp_streams[i];
- if (rtsp_st->rtp_handle) {
- fd = url_get_file_handle(rtsp_st->rtp_handle);
- fd_rtcp = rtp_get_rtcp_file_handle(rtsp_st->rtp_handle);
- if (FFMAX(fd, fd_rtcp) > fd_max)
- fd_max = FFMAX(fd, fd_rtcp);
- FD_SET(fd, &rfds);
- FD_SET(fd_rtcp, &rfds);
- }
- }
- tv.tv_sec = 0;
- tv.tv_usec = SELECT_TIMEOUT_MS * 1000;
- n = select(fd_max + 1, &rfds, NULL, NULL, &tv);
- if (n > 0) {
- timeout_cnt = 0;
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- rtsp_st = rt->rtsp_streams[i];
- if (rtsp_st->rtp_handle) {
- fd = url_get_file_handle(rtsp_st->rtp_handle);
- fd_rtcp = rtp_get_rtcp_file_handle(rtsp_st->rtp_handle);
- if (FD_ISSET(fd_rtcp, &rfds) || FD_ISSET(fd, &rfds)) {
- ret = url_read(rtsp_st->rtp_handle, buf, buf_size);
- if (ret > 0) {
- *prtsp_st = rtsp_st;
- return ret;
- }
- }
- }
- }
-#if CONFIG_RTSP_DEMUXER
- if (tcp_fd != -1 && FD_ISSET(tcp_fd, &rfds)) {
- RTSPMessageHeader reply;
-
- ret = ff_rtsp_read_reply(s, &reply, NULL, 0);
- if (ret < 0)
- return ret;
- /* XXX: parse message */
- if (rt->state != RTSP_STATE_STREAMING)
- return 0;
- }
-#endif
- } else if (n == 0 && ++timeout_cnt >= MAX_TIMEOUTS) {
- return FF_NETERROR(ETIMEDOUT);
- } else if (n < 0 && errno != EINTR)
- return AVERROR(errno);
- }
-}
-
-static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
- uint8_t *buf, int buf_size);
-
-static int rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
-{
- RTSPState *rt = s->priv_data;
- int ret, len;
- RTSPStream *rtsp_st, *first_queue_st = NULL;
- int64_t wait_end = 0;
-
- if (rt->nb_byes == rt->nb_rtsp_streams)
- return AVERROR_EOF;
-
- /* get next frames from the same RTP packet */
- if (rt->cur_transport_priv) {
- if (rt->transport == RTSP_TRANSPORT_RDT) {
- ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
- } else
- ret = rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
- if (ret == 0) {
- rt->cur_transport_priv = NULL;
- return 0;
- } else if (ret == 1) {
- return 0;
- } else
- rt->cur_transport_priv = NULL;
- }
-
- if (rt->transport == RTSP_TRANSPORT_RTP) {
- int i;
- int64_t first_queue_time = 0;
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
- int64_t queue_time = ff_rtp_queued_packet_time(rtpctx);
- if (queue_time && (queue_time - first_queue_time < 0 ||
- !first_queue_time)) {
- first_queue_time = queue_time;
- first_queue_st = rt->rtsp_streams[i];
- }
- }
- if (first_queue_time)
- wait_end = first_queue_time + s->max_delay;
- }
-
- /* read next RTP packet */
- redo:
- if (!rt->recvbuf) {
- rt->recvbuf = av_malloc(RECVBUF_SIZE);
- if (!rt->recvbuf)
- return AVERROR(ENOMEM);
- }
-
- switch(rt->lower_transport) {
- default:
-#if CONFIG_RTSP_DEMUXER
- case RTSP_LOWER_TRANSPORT_TCP:
- len = tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);
- break;
-#endif
- case RTSP_LOWER_TRANSPORT_UDP:
- case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
- len = udp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
- if (len >=0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
- rtp_check_and_send_back_rr(rtsp_st->transport_priv, len);
- break;
- }
- if (len == AVERROR(EAGAIN) && first_queue_st &&
- rt->transport == RTSP_TRANSPORT_RTP) {
- rtsp_st = first_queue_st;
- ret = rtp_parse_packet(rtsp_st->transport_priv, pkt, NULL, 0);
- goto end;
- }
- if (len < 0)
- return len;
- if (len == 0)
- return AVERROR_EOF;
- if (rt->transport == RTSP_TRANSPORT_RDT) {
- ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
- } else {
- ret = rtp_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
- if (ret < 0) {
- /* Either bad packet, or a RTCP packet. Check if the
- * first_rtcp_ntp_time field was initialized. */
- RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
- if (rtpctx->first_rtcp_ntp_time != AV_NOPTS_VALUE) {
- /* first_rtcp_ntp_time has been initialized for this stream,
- * copy the same value to all other uninitialized streams,
- * in order to map their timestamp origin to the same ntp time
- * as this one. */
- int i;
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- RTPDemuxContext *rtpctx2 = rt->rtsp_streams[i]->transport_priv;
- if (rtpctx2 &&
- rtpctx2->first_rtcp_ntp_time == AV_NOPTS_VALUE)
- rtpctx2->first_rtcp_ntp_time = rtpctx->first_rtcp_ntp_time;
- }
- }
- if (ret == -RTCP_BYE) {
- rt->nb_byes++;
-
- av_log(s, AV_LOG_DEBUG, "Received BYE for stream %d (%d/%d)\n",
- rtsp_st->stream_index, rt->nb_byes, rt->nb_rtsp_streams);
-
- if (rt->nb_byes == rt->nb_rtsp_streams)
- return AVERROR_EOF;
- }
- }
- }
-end:
- if (ret < 0)
- goto redo;
- if (ret == 1)
- /* more packets may follow, so we save the RTP context */
- rt->cur_transport_priv = rtsp_st->transport_priv;
-
- return ret;
-}
-#endif /* CONFIG_RTPDEC */
-
-#if CONFIG_RTSP_DEMUXER
static int rtsp_probe(AVProbeData *p)
{
if (av_strstart(p->filename, "rtsp:", NULL))
@@ -1752,8 +151,8 @@ static int rtsp_read_header(AVFormatCont
return 0;
}
-static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
- uint8_t *buf, int buf_size)
+int ff_rtsp_tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
+ uint8_t *buf, int buf_size)
{
RTSPState *rt = s->priv_data;
int id, len, i, ret;
@@ -1870,7 +269,7 @@ static int rtsp_read_packet(AVFormatCont
}
}
- ret = rtsp_fetch_packet(s, pkt);
+ ret = ff_rtsp_fetch_packet(s, pkt);
if (ret < 0)
return ret;
@@ -1963,197 +362,3 @@ AVInputFormat rtsp_demuxer = {
.read_play = rtsp_read_play,
.read_pause = rtsp_read_pause,
};
-#endif /* CONFIG_RTSP_DEMUXER */
-
-#if CONFIG_SDP_DEMUXER
-static int sdp_probe(AVProbeData *p1)
-{
- const char *p = p1->buf, *p_end = p1->buf + p1->buf_size;
-
- /* we look for a line beginning "c=IN IP" */
- while (p < p_end && *p != '\0') {
- if (p + sizeof("c=IN IP") - 1 < p_end &&
- av_strstart(p, "c=IN IP", NULL))
- return AVPROBE_SCORE_MAX / 2;
-
- while (p < p_end - 1 && *p != '\n') p++;
- if (++p >= p_end)
- break;
- if (*p == '\r')
- p++;
- }
- return 0;
-}
-
-static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- RTSPState *rt = s->priv_data;
- RTSPStream *rtsp_st;
- int size, i, err;
- char *content;
- char url[1024];
-
- if (!ff_network_init())
- return AVERROR(EIO);
-
- /* read the whole sdp file */
- /* XXX: better loading */
- content = av_malloc(SDP_MAX_SIZE);
- size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);
- if (size <= 0) {
- av_free(content);
- return AVERROR_INVALIDDATA;
- }
- content[size] ='\0';
-
- sdp_parse(s, content);
- av_free(content);
-
- /* open each RTP stream */
- for (i = 0; i < rt->nb_rtsp_streams; i++) {
- char namebuf[50];
- rtsp_st = rt->rtsp_streams[i];
-
- getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),
- namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
- ff_url_join(url, sizeof(url), "rtp", NULL,
- namebuf, rtsp_st->sdp_port,
- "?localport=%d&ttl=%d", rtsp_st->sdp_port,
- rtsp_st->sdp_ttl);
- if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
- goto fail;
- }
- return 0;
-fail:
- ff_rtsp_close_streams(s);
- ff_network_close();
- return err;
-}
-
-static int sdp_read_close(AVFormatContext *s)
-{
- ff_rtsp_close_streams(s);
- ff_network_close();
- return 0;
-}
-
-AVInputFormat sdp_demuxer = {
- "sdp",
- NULL_IF_CONFIG_SMALL("SDP"),
- sizeof(RTSPState),
- sdp_probe,
- sdp_read_header,
- rtsp_fetch_packet,
- sdp_read_close,
-};
-#endif /* CONFIG_SDP_DEMUXER */
-
-#if CONFIG_RTP_DEMUXER
-static int rtp_probe(AVProbeData *p)
-{
- if (av_strstart(p->filename, "rtp:", NULL))
- return AVPROBE_SCORE_MAX;
- return 0;
-}
-
-static int rtp_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
-{
- uint8_t recvbuf[1500];
- char host[500], sdp[500];
- int ret, port;
- URLContext* in = NULL;
- int payload_type;
- AVCodecContext codec;
- struct sockaddr_storage addr;
- ByteIOContext pb;
- socklen_t addrlen = sizeof(addr);
-
- if (!ff_network_init())
- return AVERROR(EIO);
-
- ret = url_open(&in, s->filename, URL_RDONLY);
- if (ret)
- goto fail;
-
- while (1) {
- ret = url_read(in, recvbuf, sizeof(recvbuf));
- if (ret == AVERROR(EAGAIN))
- continue;
- if (ret < 0)
- goto fail;
- if (ret < 12) {
- av_log(s, AV_LOG_WARNING, "Received too short packet\n");
- continue;
- }
-
- if ((recvbuf[0] & 0xc0) != 0x80) {
- av_log(s, AV_LOG_WARNING, "Unsupported RTP version packet "
- "received\n");
- continue;
- }
-
- payload_type = recvbuf[1] & 0x7f;
- break;
- }
- getsockname(url_get_file_handle(in), (struct sockaddr*) &addr, &addrlen);
- url_close(in);
- in = NULL;
-
- memset(&codec, 0, sizeof(codec));
- if (ff_rtp_get_codec_info(&codec, payload_type)) {
- av_log(s, AV_LOG_ERROR, "Unable to receive RTP payload type %d "
- "without an SDP file describing it\n",
- payload_type);
- goto fail;
- }
- if (codec.codec_type != AVMEDIA_TYPE_DATA) {
- av_log(s, AV_LOG_WARNING, "Guessing on RTP content - if not received "
- "properly you need an SDP file "
- "describing it\n");
- }
-
- av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port,
- NULL, 0, s->filename);
-
- snprintf(sdp, sizeof(sdp),
- "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
- addr.ss_family == AF_INET ? 4 : 6, host,
- codec.codec_type == AVMEDIA_TYPE_DATA ? "application" :
- codec.codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
- port, payload_type);
- av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
-
- init_put_byte(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
- s->pb = &pb;
-
- /* sdp_read_header initializes this again */
- ff_network_close();
-
- ret = sdp_read_header(s, ap);
- s->pb = NULL;
- return ret;
-
-fail:
- if (in)
- url_close(in);
- ff_network_close();
- return ret;
-}
-
-AVInputFormat rtp_demuxer = {
- "rtp",
- NULL_IF_CONFIG_SMALL("RTP input format"),
- sizeof(RTSPState),
- rtp_probe,
- rtp_read_header,
- rtsp_fetch_packet,
- sdp_read_close,
- .flags = AVFMT_NOFILE,
-};
-#endif /* CONFIG_RTP_DEMUXER */
-
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