* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavutil/avstring.h"
#include "avformat.h"
#include <sys/time.h>
#include <unistd.h> /* for select() prototype */
#include "network.h"
+#include "rtsp.h"
#include "rtp_internal.h"
/* XXX: currently, the only way to change the protocols consists in
changing this variable */
+#if LIBAVFORMAT_VERSION_INT < (53 << 16)
int rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_UDP);
+#endif
static int rtsp_probe(AVProbeData *p)
{
- if (strstart(p->filename, "rtsp:", NULL))
+ if (av_strstart(p->filename, "rtsp:", NULL))
return AVPROBE_SCORE_MAX;
return 0;
}
static int redir_isspace(int c)
{
- return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
+ return c == ' ' || c == '\t' || c == '\n' || c == '\r';
}
static void skip_spaces(const char **pp)
} else {
/* We are in a standard case ( from http://www.iana.org/assignments/rtp-parameters) */
/* search into AVRtpPayloadTypes[] */
- for (i = 0; AVRtpPayloadTypes[i].pt >= 0; ++i)
- if (!strcmp(buf, AVRtpPayloadTypes[i].enc_name) && (codec->codec_type == AVRtpPayloadTypes[i].codec_type)){
- codec->codec_id = AVRtpPayloadTypes[i].codec_id;
- break;
- }
+ codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
}
c = avcodec_find_decoder(codec->codec_id);
char buf[256];
skip_spaces(&p);
- if (!stristart(p, "npt=", &p))
+ if (!av_stristart(p, "npt=", &p))
return;
*start = AV_NOPTS_VALUE;
}
break;
case 's':
- pstrcpy(s->title, sizeof(s->title), p);
+ av_strlcpy(s->title, p, sizeof(s->title));
break;
case 'i':
if (s->nb_streams == 0) {
- pstrcpy(s->comment, sizeof(s->comment), p);
+ av_strlcpy(s->comment, p, sizeof(s->comment));
break;
}
break;
get_word(buf1, sizeof(buf1), &p); /* format list */
rtsp_st->sdp_payload_type = atoi(buf1);
- if (!strcmp(AVRtpPayloadTypes[rtsp_st->sdp_payload_type].enc_name, "MP2T")) {
+ if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) {
/* no corresponding stream */
} else {
st = av_new_stream(s, 0);
}
}
/* put a default control url */
- pstrcpy(rtsp_st->control_url, sizeof(rtsp_st->control_url), s->filename);
+ av_strlcpy(rtsp_st->control_url, s->filename, sizeof(rtsp_st->control_url));
break;
case 'a':
- if (strstart(p, "control:", &p) && s->nb_streams > 0) {
+ if (av_strstart(p, "control:", &p) && s->nb_streams > 0) {
char proto[32];
/* get the control url */
st = s->streams[s->nb_streams - 1];
url_split(proto, sizeof(proto), NULL, 0, NULL, 0, NULL, NULL, 0, p);
if (proto[0] == '\0') {
/* relative control URL */
- pstrcat(rtsp_st->control_url, sizeof(rtsp_st->control_url), "/");
- pstrcat(rtsp_st->control_url, sizeof(rtsp_st->control_url), p);
+ av_strlcat(rtsp_st->control_url, "/", sizeof(rtsp_st->control_url));
+ av_strlcat(rtsp_st->control_url, p, sizeof(rtsp_st->control_url));
} else {
- pstrcpy(rtsp_st->control_url, sizeof(rtsp_st->control_url), p);
+ av_strlcpy(rtsp_st->control_url, p, sizeof(rtsp_st->control_url));
}
- } else if (strstart(p, "rtpmap:", &p)) {
+ } else if (av_strstart(p, "rtpmap:", &p)) {
/* NOTE: rtpmap is only supported AFTER the 'm=' tag */
get_word(buf1, sizeof(buf1), &p);
payload_type = atoi(buf1);
sdp_parse_rtpmap(st->codec, rtsp_st, payload_type, p);
}
}
- } else if (strstart(p, "fmtp:", &p)) {
+ } else if (av_strstart(p, "fmtp:", &p)) {
/* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */
get_word(buf1, sizeof(buf1), &p);
payload_type = atoi(buf1);
}
}
}
- } else if(strstart(p, "framesize:", &p)) {
+ } else if(av_strstart(p, "framesize:", &p)) {
// let dynamic protocol handlers have a stab at the line.
get_word(buf1, sizeof(buf1), &p);
payload_type = atoi(buf1);
}
}
}
- } else if(strstart(p, "range:", &p)) {
+ } else if(av_strstart(p, "range:", &p)) {
int64_t start, end;
// this is so that seeking on a streamed file can work.
"/", &p);
if (*p == '/')
p++;
- get_word_sep(profile, sizeof(profile), "/;,", &p);
- lower_transport[0] = '\0';
- if (*p == '/') {
- p++;
- get_word_sep(lower_transport, sizeof(lower_transport),
- ";,", &p);
+ if (!strcasecmp (transport_protocol, "rtp")) {
+ get_word_sep(profile, sizeof(profile), "/;,", &p);
+ lower_transport[0] = '\0';
+ /* rtp/avp/<protocol> */
+ if (*p == '/') {
+ p++;
+ get_word_sep(lower_transport, sizeof(lower_transport),
+ ";,", &p);
+ }
+ } else if (!strcasecmp (transport_protocol, "x-pn-tng")) {
+ /* x-pn-tng/<protocol> */
+ get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p);
+ profile[0] = '\0';
}
if (!strcasecmp(lower_transport, "TCP"))
th->protocol = RTSP_PROTOCOL_RTP_TCP;
/* NOTE: we do case independent match for broken servers */
p = buf;
- if (stristart(p, "Session:", &p)) {
+ if (av_stristart(p, "Session:", &p)) {
get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
- } else if (stristart(p, "Content-Length:", &p)) {
+ } else if (av_stristart(p, "Content-Length:", &p)) {
reply->content_length = strtol(p, NULL, 10);
- } else if (stristart(p, "Transport:", &p)) {
+ } else if (av_stristart(p, "Transport:", &p)) {
rtsp_parse_transport(reply, p);
- } else if (stristart(p, "CSeq:", &p)) {
+ } else if (av_stristart(p, "CSeq:", &p)) {
reply->seq = strtol(p, NULL, 10);
- } else if (stristart(p, "Range:", &p)) {
+ } else if (av_stristart(p, "Range:", &p)) {
rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
}
}
ret = url_readbuf(rt->rtsp_hd, buf, 3);
if (ret != 3)
return;
- len = (buf[1] << 8) | buf[2];
+ len = AV_RB16(buf + 1);
#ifdef DEBUG
printf("skipping RTP packet len=%d\n", len);
#endif
memset(reply, 0, sizeof(RTSPHeader));
rt->seq++;
- pstrcpy(buf, sizeof(buf), cmd);
+ av_strlcpy(buf, cmd, sizeof(buf));
snprintf(buf1, sizeof(buf1), "CSeq: %d\r\n", rt->seq);
- pstrcat(buf, sizeof(buf), buf1);
+ av_strlcat(buf, buf1, sizeof(buf));
if (rt->session_id[0] != '\0' && !strstr(cmd, "\nIf-Match:")) {
snprintf(buf1, sizeof(buf1), "Session: %s\r\n", rt->session_id);
- pstrcat(buf, sizeof(buf), buf1);
+ av_strlcat(buf, buf1, sizeof(buf));
}
- pstrcat(buf, sizeof(buf), "\r\n");
+ av_strlcat(buf, "\r\n", sizeof(buf));
#ifdef DEBUG
printf("Sending:\n%s--\n", buf);
#endif
reply->status_code = atoi(buf1);
} else {
rtsp_parse_line(reply, p);
- pstrcat(rt->last_reply, sizeof(rt->last_reply), p);
- pstrcat(rt->last_reply, sizeof(rt->last_reply), "\n");
+ 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')
- pstrcpy(rt->session_id, sizeof(rt->session_id), reply->session_id);
+ av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id));
content_length = reply->content_length;
if (content_length > 0) {
}
if (content_ptr)
*content_ptr = content;
+ else
+ av_free(content);
}
av_free(rt->rtsp_streams);
}
-static int rtsp_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+/**
+ * @returns 0 on success, <0 on error, 1 if protocol is unavailable.
+ */
+static int
+make_setup_request (AVFormatContext *s, const char *host, int port, int protocol)
{
RTSPState *rt = s->priv_data;
- char host[1024], path[1024], tcpname[1024], cmd[2048];
- URLContext *rtsp_hd;
- int port, i, j, ret, err;
- RTSPHeader reply1, *reply = &reply1;
- unsigned char *content = NULL;
+ int j, i, err;
RTSPStream *rtsp_st;
- int protocol_mask;
AVStream *st;
-
- /* extract hostname and port */
- url_split(NULL, 0, NULL, 0,
- host, sizeof(host), &port, path, sizeof(path), s->filename);
- if (port < 0)
- port = RTSP_DEFAULT_PORT;
-
- /* open the tcp connexion */
- snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port);
- if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0)
- return AVERROR_IO;
- rt->rtsp_hd = rtsp_hd;
- rt->seq = 0;
-
- /* describe the stream */
- snprintf(cmd, sizeof(cmd),
- "DESCRIBE %s RTSP/1.0\r\n"
- "Accept: application/sdp\r\n",
- s->filename);
- rtsp_send_cmd(s, cmd, reply, &content);
- if (!content) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
- if (reply->status_code != RTSP_STATUS_OK) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-
- /* now we got the SDP description, we parse it */
- ret = sdp_parse(s, (const char *)content);
- av_freep(&content);
- if (ret < 0) {
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-
- protocol_mask = rtsp_default_protocols;
+ RTSPHeader reply1, *reply = &reply1;
+ char cmd[2048];
/* for each stream, make the setup request */
/* XXX: we assume the same server is used for the control of each
transport[0] = '\0';
/* RTP/UDP */
- if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP)) {
+ if (protocol == RTSP_PROTOCOL_RTP_UDP) {
char buf[256];
/* first try in specified port range */
if (RTSP_RTP_PORT_MIN != 0) {
while(j <= RTSP_RTP_PORT_MAX) {
- snprintf(buf, sizeof(buf), "rtp://?localport=%d", j);
+ snprintf(buf, sizeof(buf), "rtp://%s?localport=%d", host, j);
+ j += 2; /* we will use two port by rtp stream (rtp and rtcp) */
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;
}
}
rtp_opened:
port = rtp_get_local_port(rtsp_st->rtp_handle);
if (transport[0] != '\0')
- pstrcat(transport, sizeof(transport), ",");
+ av_strlcat(transport, ",", sizeof(transport));
snprintf(transport + strlen(transport), sizeof(transport) - strlen(transport) - 1,
"RTP/AVP/UDP;unicast;client_port=%d-%d",
port, port + 1);
}
/* RTP/TCP */
- else if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_TCP)) {
+ else if (protocol == RTSP_PROTOCOL_RTP_TCP) {
if (transport[0] != '\0')
- pstrcat(transport, sizeof(transport), ",");
+ av_strlcat(transport, ",", sizeof(transport));
snprintf(transport + strlen(transport), sizeof(transport) - strlen(transport) - 1,
"RTP/AVP/TCP");
}
- else if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP_MULTICAST)) {
+ else if (protocol == RTSP_PROTOCOL_RTP_UDP_MULTICAST) {
if (transport[0] != '\0')
- pstrcat(transport, sizeof(transport), ",");
+ av_strlcat(transport, ",", sizeof(transport));
snprintf(transport + strlen(transport),
sizeof(transport) - strlen(transport) - 1,
"RTP/AVP/UDP;multicast");
"Transport: %s\r\n",
rtsp_st->control_url, transport);
rtsp_send_cmd(s, cmd, reply, NULL);
- if (reply->status_code != RTSP_STATUS_OK ||
- reply->nb_transports != 1) {
+ 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;
}
/* close RTP connection if not choosen */
if (reply->transports[0].protocol != RTSP_PROTOCOL_RTP_UDP &&
- (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP))) {
+ (protocol == RTSP_PROTOCOL_RTP_UDP)) {
url_close(rtsp_st->rtp_handle);
rtsp_st->rtp_handle = NULL;
}
case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
{
char url[1024];
- int ttl;
-
- ttl = reply->transports[0].ttl;
- if (!ttl)
- ttl = 16;
- snprintf(url, sizeof(url), "rtp://%s:%d?multicast=1&ttl=%d",
- host,
- reply->transports[0].server_port_min,
- ttl);
+ struct in_addr in;
+
+ in.s_addr = htonl(reply->transports[0].destination);
+ snprintf(url, sizeof(url), "rtp://%s:%d?ttl=%d",
+ inet_ntoa(in),
+ reply->transports[0].port_min,
+ reply->transports[0].ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
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;
+ err = AVERROR(ENOMEM);
goto fail;
} else {
if(rtsp_st->dynamic_handler) {
}
}
+ 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_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ RTSPState *rt = s->priv_data;
+ char host[1024], path[1024], tcpname[1024], cmd[2048], *option_list, *option;
+ URLContext *rtsp_hd;
+ int port, ret, err;
+ RTSPHeader reply1, *reply = &reply1;
+ unsigned char *content = NULL;
+ int protocol_mask = 0;
+
+ /* extract hostname and port */
+ url_split(NULL, 0, NULL, 0,
+ host, sizeof(host), &port, path, sizeof(path), s->filename);
+ 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 = (1 << RTSP_PROTOCOL_RTP_LAST) - 1;
+
+ /* open the tcp connexion */
+ snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port);
+ if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0)
+ return AVERROR(EIO);
+ rt->rtsp_hd = rtsp_hd;
+ rt->seq = 0;
+
+ /* describe the stream */
+ snprintf(cmd, sizeof(cmd),
+ "DESCRIBE %s RTSP/1.0\r\n"
+ "Accept: application/sdp\r\n",
+ s->filename);
+ rtsp_send_cmd(s, cmd, reply, &content);
+ if (!content) {
+ err = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+ if (reply->status_code != RTSP_STATUS_OK) {
+ err = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ /* now we got the SDP description, we parse it */
+ ret = sdp_parse(s, (const char *)content);
+ av_freep(&content);
+ if (ret < 0) {
+ err = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ do {
+ int protocol = ff_log2_tab[protocol_mask & ~(protocol_mask - 1)];
+
+ err = make_setup_request(s, host, port, protocol);
+ if (err < 0)
+ goto fail;
+ protocol_mask &= ~(1 << protocol);
+ if (protocol_mask == 0 && err == 1) {
+ err = AVERROR(FF_NETERROR(EPROTONOSUPPORT));
+ goto fail;
+ }
+ } while (err);
+
rt->state = RTSP_STATE_IDLE;
rt->seek_timestamp = 0; /* default is to start stream at position
zero */
if (ret != 3)
return -1;
id = buf[0];
- len = (buf[1] << 8) | buf[2];
+ len = AV_RB16(buf + 1);
#ifdef DEBUG_RTP_TCP
printf("id=%d len=%d\n", id, len);
#endif
for(;;) {
if (url_interrupt_cb())
- return -1;
+ return AVERROR(EINTR);
FD_ZERO(&rfds);
fd_max = -1;
for(i = 0; i < rt->nb_rtsp_streams; i++) {
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)
+ if (len >=0 && rtsp_st->rtp_ctx)
rtp_check_and_send_back_rr(rtsp_st->rtp_ctx, len);
break;
}
if (len < 0)
- return AVERROR_IO;
+ return len;
ret = rtp_parse_packet(rtsp_st->rtp_ctx, pkt, buf, len);
if (ret < 0)
goto redo;
{
RTSPState *rt = s->priv_data;
- rt->seek_timestamp = timestamp;
+ 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:
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)
{
/* we look for a line beginning "c=IN IP4" */
while (p < p_end && *p != '\0') {
- if (p + sizeof("c=IN IP4") - 1 < p_end && strstart(p, "c=IN IP4", NULL))
+ if (p + sizeof("c=IN IP4") - 1 < p_end && av_strstart(p, "c=IN IP4", NULL))
return AVPROBE_SCORE_MAX / 2;
while(p < p_end - 1 && *p != '\n') p++;
/* read the whole sdp file */
/* XXX: better loading */
content = av_malloc(SDP_MAX_SIZE);
- size = get_buffer(&s->pb, content, SDP_MAX_SIZE - 1);
+ size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);
if (size <= 0) {
av_free(content);
return AVERROR_INVALIDDATA;
for(i=0;i<rt->nb_rtsp_streams;i++) {
rtsp_st = rt->rtsp_streams[i];
- snprintf(url, sizeof(url), "rtp://%s:%d?multicast=1&ttl=%d",
+ snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d",
inet_ntoa(rtsp_st->sdp_ip),
rtsp_st->sdp_port,
+ rtsp_st->sdp_port,
rtsp_st->sdp_ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
s->ctx_flags |= AVFMTCTX_NOHEADER;
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;
+ err = AVERROR(ENOMEM);
goto fail;
} else {
if(rtsp_st->dynamic_handler) {
p = pd->buf;
while (redir_isspace(*p))
p++;
- if (strstart(p, "http://", NULL) ||
- strstart(p, "rtsp://", NULL))
+ if (av_strstart(p, "http://", NULL) ||
+ av_strstart(p, "rtsp://", NULL))
return AVPROBE_SCORE_MAX;
return 0;
}
-/* called from utils.c */
-int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f)
+static int redir_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
char buf[4096], *q;
int c;
AVFormatContext *ic = NULL;
+ ByteIOContext *f = s->pb;
/* parse each URL and try to open it */
c = url_fgetc(f);
if (av_open_input_file(&ic, buf, NULL, 0, NULL) == 0)
break;
}
- *ic_ptr = ic;
if (!ic)
- return AVERROR_IO;
- else
- return 0;
+ return AVERROR(EIO);
+
+ *s = *ic;
+ url_fclose(f);
+
+ return 0;
}
AVInputFormat redir_demuxer = {
"Redirector format",
0,
redir_probe,
- NULL,
+ redir_read_header,
NULL,
NULL,
};
projects / ffmpeg / blobdiff