* RTSP demuxer
* Copyright (c) 2002 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
#include "avformat.h"
#include "internal.h"
#include "os_support.h"
#include "rtsp.h"
#include "rdt.h"
-
-//#define DEBUG
-//#define DEBUG_RTP_TCP
+#include "url.h"
static int rtsp_read_play(AVFormatContext *s)
{
rt->nb_byes = 0;
if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) {
+ 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;
+ if (!rtpctx)
+ continue;
+ ff_rtp_reset_packet_queue(rtpctx);
+ rtpctx->last_rtcp_ntp_time = AV_NOPTS_VALUE;
+ rtpctx->first_rtcp_ntp_time = AV_NOPTS_VALUE;
+ rtpctx->base_timestamp = 0;
+ rtpctx->rtcp_ts_offset = 0;
+ }
+ }
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);
+ "Range: npt=%"PRId64".%03"PRId64"-\r\n",
+ rt->seek_timestamp / AV_TIME_BASE,
+ rt->seek_timestamp / (AV_TIME_BASE / 1000) % 1000);
}
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) {
+ if (rt->transport == RTSP_TRANSPORT_RTP &&
+ reply->range_start != AV_NOPTS_VALUE) {
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)
+ if (!rtpctx || rtsp_st->stream_index < 0)
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);
- }
+ st = s->streams[rtsp_st->stream_index];
+ rtpctx->range_start_offset =
+ av_rescale_q(reply->range_start, AV_TIME_BASE_Q,
+ st->time_base);
}
}
}
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;
+}
+
int ff_rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply)
{
RTSPState *rt = s->priv_data;
av_freep(&content);
return AVERROR_INVALIDDATA;
}
- if (reply->content_base[0])
- av_strlcpy(rt->control_uri, reply->content_base,
- sizeof(rt->control_uri));
av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", content);
/* now we got the SDP description, we parse it */
ret = ff_sdp_parse(s, (const char *)content);
av_freep(&content);
if (ret < 0)
- return AVERROR_INVALIDDATA;
+ return ret;
return 0;
}
return AVERROR(ENOMEM);
rt->real_setup = rt->real_setup_cache + s->nb_streams;
- if (ap->initial_pause) {
+ if (rt->initial_pause) {
/* do not start immediately */
} else {
if (rtsp_read_play(s) < 0) {
int id, len, i, ret;
RTSPStream *rtsp_st;
-#ifdef DEBUG_RTP_TCP
- dprintf(s, "tcp_read_packet:\n");
-#endif
+ av_dlog(s, "tcp_read_packet:\n");
redo:
for (;;) {
RTSPMessageHeader reply;
- ret = ff_rtsp_read_reply(s, &reply, NULL, 1);
+ ret = ff_rtsp_read_reply(s, &reply, NULL, 1, NULL);
if (ret < 0)
return ret;
if (ret == 1) /* received '$' */
if (rt->state != RTSP_STATE_STREAMING)
return 0;
}
- ret = url_read_complete(rt->rtsp_hd, buf, 3);
+ ret = ffurl_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
+ av_dlog(s, "id=%d len=%d\n", id, len);
if (len > buf_size || len < 12)
goto redo;
/* get the data */
- ret = url_read_complete(rt->rtsp_hd, buf, len);
+ ret = ffurl_read_complete(rt->rtsp_hd, buf, len);
if (ret != len)
return -1;
if (rt->transport == RTSP_TRANSPORT_RDT &&
*prtsp_st = rtsp_st;
return len;
}
+
+static int resetup_tcp(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ char host[1024];
+ int port;
+
+ av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port, NULL, 0,
+ s->filename);
+ ff_rtsp_undo_setup(s);
+ return ff_rtsp_make_setup_request(s, host, port, RTSP_LOWER_TRANSPORT_TCP,
+ rt->real_challenge);
+}
+
static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt)
{
RTSPState *rt = s->priv_data;
RTSPMessageHeader reply1, *reply = &reply1;
char cmd[1024];
+retry:
if (rt->server_type == RTSP_SERVER_REAL) {
int i;
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]->id == i) {
if (s->streams[r]->discard != AVDISCARD_ALL) {
if (!first)
av_strlcat(rt->last_subscription, ",",
}
ret = ff_rtsp_fetch_packet(s, pkt);
- if (ret < 0)
+ if (ret < 0) {
+ if (ret == AVERROR(ETIMEDOUT) && !rt->packets) {
+ if (rt->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
+ rt->lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_TCP)) {
+ RTSPMessageHeader reply1, *reply = &reply1;
+ av_log(s, AV_LOG_WARNING, "UDP timeout, retrying with TCP\n");
+ if (rtsp_read_pause(s) != 0)
+ return -1;
+ // TEARDOWN is required on Real-RTSP, but might make
+ // other servers close the connection.
+ if (rt->server_type == RTSP_SERVER_REAL)
+ ff_rtsp_send_cmd(s, "TEARDOWN", rt->control_uri, NULL,
+ reply, NULL);
+ rt->session_id[0] = '\0';
+ if (resetup_tcp(s) == 0) {
+ rt->state = RTSP_STATE_IDLE;
+ rt->need_subscription = 1;
+ if (rtsp_read_play(s) != 0)
+ return -1;
+ goto retry;
+ }
+ }
+ }
return ret;
+ }
+ rt->packets++;
/* 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) {
+ if (rt->server_type == RTSP_SERVER_WMS ||
+ (rt->server_type != RTSP_SERVER_REAL &&
+ rt->get_parameter_supported)) {
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;
-#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);
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,
+static const AVOption options[] = {
+ { "initial_pause", "Don't start playing the stream immediately", offsetof(RTSPState, initial_pause), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+ { NULL },
+};
+
+const AVClass rtsp_demuxer_class = {
+ .class_name = "RTSP demuxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVInputFormat ff_rtsp_demuxer = {
+ .name = "rtsp",
+ .long_name = NULL_IF_CONFIG_SMALL("RTSP input format"),
+ .priv_data_size = sizeof(RTSPState),
+ .read_probe = rtsp_probe,
+ .read_header = rtsp_read_header,
+ .read_packet = rtsp_read_packet,
+ .read_close = rtsp_read_close,
+ .read_seek = rtsp_read_seek,
.flags = AVFMT_NOFILE,
.read_play = rtsp_read_play,
.read_pause = rtsp_read_pause,
+ .priv_class = &rtsp_demuxer_class,
};
projects / ffmpeg / blobdiff