* Session Announcement Protocol (RFC 2974) demuxer
* Copyright (c) 2010 Martin Storsjo
*
- * 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 "network.h"
#include "os_support.h"
#include "internal.h"
-#if HAVE_SYS_SELECT_H
-#include <sys/select.h>
+#include "avio_internal.h"
+#include "url.h"
+#include "rtpdec.h"
+#if HAVE_POLL_H
+#include <poll.h>
#endif
-#include <sys/time.h>
struct SAPState {
URLContext *ann_fd;
AVFormatContext *sdp_ctx;
- ByteIOContext sdp_pb;
+ AVIOContext sdp_pb;
uint16_t hash;
char *sdp;
int eof;
{
struct SAPState *sap = s->priv_data;
if (sap->sdp_ctx)
- av_close_input_stream(sap->sdp_ctx);
+ avformat_close_input(&sap->sdp_ctx);
if (sap->ann_fd)
- url_close(sap->ann_fd);
+ ffurl_close(sap->ann_fd);
av_freep(&sap->sdp);
ff_network_close();
return 0;
}
-static int sap_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int sap_read_header(AVFormatContext *s)
{
struct SAPState *sap = s->priv_data;
char host[1024], path[1024], url[1024];
- uint8_t recvbuf[1500];
+ uint8_t recvbuf[RTP_MAX_PACKET_LENGTH];
int port;
int ret, i;
AVInputFormat* infmt;
ff_url_join(url, sizeof(url), "udp", NULL, host, port, "?localport=%d",
port);
- ret = url_open(&sap->ann_fd, url, URL_RDONLY);
+ ret = ffurl_open(&sap->ann_fd, url, AVIO_FLAG_READ,
+ &s->interrupt_callback, NULL);
if (ret)
goto fail;
int addr_type, auth_len;
int pos;
- ret = url_read(sap->ann_fd, recvbuf, sizeof(recvbuf) - 1);
+ ret = ffurl_read(sap->ann_fd, recvbuf, sizeof(recvbuf) - 1);
if (ret == AVERROR(EAGAIN))
continue;
if (ret < 0)
}
av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sap->sdp);
- init_put_byte(&sap->sdp_pb, sap->sdp, strlen(sap->sdp), 0, NULL, NULL,
+ ffio_init_context(&sap->sdp_pb, sap->sdp, strlen(sap->sdp), 0, NULL, NULL,
NULL, NULL);
infmt = av_find_input_format("sdp");
goto fail;
}
sap->sdp_ctx->max_delay = s->max_delay;
- ap->prealloced_context = 1;
- ret = av_open_input_stream(&sap->sdp_ctx, &sap->sdp_pb, "temp.sdp",
- infmt, ap);
+ sap->sdp_ctx->pb = &sap->sdp_pb;
+ sap->sdp_ctx->interrupt_callback = s->interrupt_callback;
+ ret = avformat_open_input(&sap->sdp_ctx, "temp.sdp", infmt, NULL);
if (ret < 0)
goto fail;
if (sap->sdp_ctx->ctx_flags & AVFMTCTX_NOHEADER)
s->ctx_flags |= AVFMTCTX_NOHEADER;
for (i = 0; i < sap->sdp_ctx->nb_streams; i++) {
- AVStream *st = av_new_stream(s, i);
+ AVStream *st = avformat_new_stream(s, NULL);
if (!st) {
ret = AVERROR(ENOMEM);
goto fail;
}
+ st->id = i;
avcodec_copy_context(st->codec, sap->sdp_ctx->streams[i]->codec);
st->time_base = sap->sdp_ctx->streams[i]->time_base;
}
static int sap_fetch_packet(AVFormatContext *s, AVPacket *pkt)
{
struct SAPState *sap = s->priv_data;
- int fd = url_get_file_handle(sap->ann_fd);
+ int fd = ffurl_get_file_handle(sap->ann_fd);
int n, ret;
- fd_set rfds;
- struct timeval tv;
- uint8_t recvbuf[1500];
+ struct pollfd p = {fd, POLLIN, 0};
+ uint8_t recvbuf[RTP_MAX_PACKET_LENGTH];
if (sap->eof)
return AVERROR_EOF;
while (1) {
- FD_ZERO(&rfds);
- FD_SET(fd, &rfds);
- tv.tv_sec = tv.tv_usec = 0;
- n = select(fd + 1, &rfds, NULL, NULL, &tv);
- if (n <= 0 || !FD_ISSET(fd, &rfds))
+ n = poll(&p, 1, 0);
+ if (n <= 0 || !(p.revents & POLLIN))
break;
- ret = url_read(sap->ann_fd, recvbuf, sizeof(recvbuf));
+ ret = ffurl_read(sap->ann_fd, recvbuf, sizeof(recvbuf));
if (ret >= 8) {
uint16_t hash = AV_RB16(&recvbuf[2]);
/* Should ideally check the source IP address, too */
if (s->ctx_flags & AVFMTCTX_NOHEADER) {
while (sap->sdp_ctx->nb_streams > s->nb_streams) {
int i = s->nb_streams;
- AVStream *st = av_new_stream(s, i);
+ AVStream *st = avformat_new_stream(s, NULL);
if (!st) {
av_free_packet(pkt);
return AVERROR(ENOMEM);
}
+ st->id = i;
avcodec_copy_context(st->codec, sap->sdp_ctx->streams[i]->codec);
st->time_base = sap->sdp_ctx->streams[i]->time_base;
}
}
AVInputFormat ff_sap_demuxer = {
- "sap",
- NULL_IF_CONFIG_SMALL("SAP input format"),
- sizeof(struct SAPState),
- sap_probe,
- sap_read_header,
- sap_fetch_packet,
- sap_read_close,
- .flags = AVFMT_NOFILE,
+ .name = "sap",
+ .long_name = NULL_IF_CONFIG_SMALL("SAP input"),
+ .priv_data_size = sizeof(struct SAPState),
+ .read_probe = sap_probe,
+ .read_header = sap_read_header,
+ .read_packet = sap_fetch_packet,
+ .read_close = sap_read_close,
+ .flags = AVFMT_NOFILE,
};
-