1 files changed, 107 insertions, 0 deletions
diff --git a/ffmpeg/libavformat/rtpenc_chain.c b/ffmpeg/libavformat/rtpenc_chain.c
new file mode 100644
index 0000000..70d68ce
--- /dev/null
+++ b/ffmpeg/libavformat/rtpenc_chain.c
@@ -0,0 +1,107 @@
+/*
+ * RTP muxer chaining code
+ * Copyright (c) 2010 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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,
+ * 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avformat.h"
+#include "avio_internal.h"
+#include "rtpenc_chain.h"
+#include "avio_internal.h"
+#include "rtp.h"
+#include "libavutil/opt.h"
+
+int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s,
+                          AVStream *st, URLContext *handle, int packet_size,
+                          int idx)
+{
+    AVFormatContext *rtpctx = NULL;
+    int ret;
+    AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
+    uint8_t *rtpflags;
+    AVDictionary *opts = NULL;
+
+    if (!rtp_format) {
+        ret = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    /* Allocate an AVFormatContext for each output stream */
+    rtpctx = avformat_alloc_context();
+    if (!rtpctx) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    rtpctx->oformat = rtp_format;
+    if (!avformat_new_stream(rtpctx, NULL)) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    /* Pass the interrupt callback on */
+    rtpctx->interrupt_callback = s->interrupt_callback;
+    /* Copy the max delay setting; the rtp muxer reads this. */
+    rtpctx->max_delay = s->max_delay;
+    /* Copy other stream parameters. */
+    rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio;
+    rtpctx->flags |= s->flags & AVFMT_FLAG_MP4A_LATM;
+
+    /* Get the payload type from the codec */
+    if (st->id < RTP_PT_PRIVATE)
+        rtpctx->streams[0]->id =
+            ff_rtp_get_payload_type(s, st->codec, idx);
+    else
+        rtpctx->streams[0]->id = st->id;
+
+
+    if (av_opt_get(s, "rtpflags", AV_OPT_SEARCH_CHILDREN, &rtpflags) >= 0)
+        av_dict_set(&opts, "rtpflags", rtpflags, AV_DICT_DONT_STRDUP_VAL);
+
+    /* Set the synchronized start time. */
+    rtpctx->start_time_realtime = s->start_time_realtime;
+
+    avcodec_copy_context(rtpctx->streams[0]->codec, st->codec);
+
+    if (handle) {
+        ffio_fdopen(&rtpctx->pb, handle);
+    } else
+        ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size);
+    ret = avformat_write_header(rtpctx, &opts);
+    av_dict_free(&opts);
+
+    if (ret) {
+        if (handle) {
+            avio_close(rtpctx->pb);
+        } else {
+            uint8_t *ptr;
+            avio_close_dyn_buf(rtpctx->pb, &ptr);
+            av_free(ptr);
+        }
+        avformat_free_context(rtpctx);
+        return ret;
+    }
+
+    *out = rtpctx;
+    return 0;
+
+fail:
+    av_free(rtpctx);
+    if (handle)
+        ffurl_close(handle);
+    return ret;
+}