jstring Java_org_devtcg_rojocam_ffmpeg_FFStreamConfig_nativeGetSDPDescription(JNIEnv *env,
jclass clazz, jint nativeInt) {
FFStreamConfig *config = (FFStreamConfig *)nativeInt;
AVFormatContext *avc;
AVStream *avs = NULL;
char buf[2048];
int i;
avc = avformat_alloc_context();
if (avc == NULL) {
jniThrowOOM(env);
return NULL;
}
av_dict_set(&avc->metadata, "title",
config->title ? config->title : "No Title", 0);
avc->nb_streams = config->num_streams;
snprintf(avc->filename, sizeof(avc->filename), "rtp://0.0.0.0");
avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams));
avs = av_malloc(avc->nb_streams * sizeof(*avs));
for (i = 0; i < avc->nb_streams; i++) {
avc->streams[i] = &avs[i];
avc->streams[i]->codec = config->streams[i]->codec;
}
memset(buf, 0, sizeof(buf));
avf_sdp_create(&avc, 1, buf, sizeof(buf));
av_free(avc->streams);
av_dict_free(&avc->metadata);
av_free(avc);
av_free(avs);
return (*env)->NewStringUTF(env, buf);
}
int ff_rtsp_setup_output_streams(AVFormatContext *s, const char *addr)
{
RTSPState *rt = s->priv_data;
RTSPMessageHeader reply1, *reply = &reply1;
int i;
char *sdp;
AVFormatContext sdp_ctx, *ctx_array[1];
s->start_time_realtime = av_gettime();
/* Announce the stream */
sdp = av_mallocz(SDP_MAX_SIZE);
if (sdp == NULL)
return AVERROR(ENOMEM);
/* We create the SDP based on the RTSP AVFormatContext where we
* aren't allowed to change the filename field. (We create the SDP
* based on the RTSP context since the contexts for the RTP streams
* don't exist yet.) In order to specify a custom URL with the actual
* peer IP instead of the originally specified hostname, we create
* a temporary copy of the AVFormatContext, where the custom URL is set.
*
* FIXME: Create the SDP without copying the AVFormatContext.
* This either requires setting up the RTP stream AVFormatContexts
* already here (complicating things immensely) or getting a more
* flexible SDP creation interface.
*/
sdp_ctx = *s;
ff_url_join(sdp_ctx.filename, sizeof(sdp_ctx.filename),
"rtsp", NULL, addr, -1, NULL);
ctx_array[0] = &sdp_ctx;
if (avf_sdp_create(ctx_array, 1, sdp, SDP_MAX_SIZE)) {
av_free(sdp);
return AVERROR_INVALIDDATA;
}
av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
ff_rtsp_send_cmd_with_content(s, "ANNOUNCE", rt->control_uri,
"Content-Type: application/sdp\r\n",
reply, NULL, sdp, strlen(sdp));
av_free(sdp);
if (reply->status_code != RTSP_STATUS_OK)
return AVERROR_INVALIDDATA;
/* Set up the RTSPStreams for each AVStream */
for (i = 0; i < s->nb_streams; i++) {
RTSPStream *rtsp_st;
AVStream *st = s->streams[i];
rtsp_st = av_mallocz(sizeof(RTSPStream));
if (!rtsp_st)
return AVERROR(ENOMEM);
dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
st->priv_data = rtsp_st;
rtsp_st->stream_index = i;
av_strlcpy(rtsp_st->control_url, rt->control_uri, sizeof(rtsp_st->control_url));
/* Note, this must match the relative uri set in the sdp content */
av_strlcatf(rtsp_st->control_url, sizeof(rtsp_st->control_url),
"/streamid=%d", i);
}
return 0;
}
