---
 libavformat/rtp.c  | 10 ++++----
 libavformat/rtp.h  |  4 ++--
 libavformat/rtsp.c | 68 ++++++++++++++++++++++++++++++------------------------
 3 files changed, 45 insertions(+), 37 deletions(-)

diff --git a/libavformat/rtp.c b/libavformat/rtp.c
index 2c9284b..5eb92e4 100644
--- a/libavformat/rtp.c
+++ b/libavformat/rtp.c
@@ -67,19 +67,19 @@ static const struct {
   {-1, "",           AVMEDIA_TYPE_UNKNOWN, AV_CODEC_ID_NONE, -1, -1}
 };
 
-int ff_rtp_get_codec_info(AVCodecContext *codec, int payload_type)
+int ff_rtp_get_codec_info(AVCodecParameters *par, int payload_type)
 {
     int i = 0;
 
     for (i = 0; rtp_payload_types[i].pt >= 0; i++)
         if (rtp_payload_types[i].pt == payload_type) {
             if (rtp_payload_types[i].codec_id != AV_CODEC_ID_NONE) {
-                codec->codec_type = rtp_payload_types[i].codec_type;
-                codec->codec_id = rtp_payload_types[i].codec_id;
+                par->codec_type = rtp_payload_types[i].codec_type;
+                par->codec_id = rtp_payload_types[i].codec_id;
                 if (rtp_payload_types[i].audio_channels > 0)
-                    codec->channels = rtp_payload_types[i].audio_channels;
+                    par->channels = rtp_payload_types[i].audio_channels;
                 if (rtp_payload_types[i].clock_rate > 0)
-                    codec->sample_rate = rtp_payload_types[i].clock_rate;
+                    par->sample_rate = rtp_payload_types[i].clock_rate;
                 return 0;
             }
         }
diff --git a/libavformat/rtp.h b/libavformat/rtp.h
index d1bd123..01b83df 100644
--- a/libavformat/rtp.h
+++ b/libavformat/rtp.h
@@ -46,12 +46,12 @@ int ff_rtp_get_payload_type(AVFormatContext *fmt, 
AVCodecParameters *par,
  * information depending on the payload type; for audio codecs, the
  * channels and sample_rate fields are also filled.
  *
- * @param codec The context of the codec
+ * @param par The codec parameters
  * @param payload_type The payload type (the 'PT' field in the RTP header)
  * @return In case of unknown payload type or dynamic payload type, a
  * negative value is returned; otherwise, 0 is returned
  */
-int ff_rtp_get_codec_info(AVCodecContext *codec, int payload_type);
+int ff_rtp_get_codec_info(AVCodecParameters *par, int payload_type);
 
 /**
  * Return the encoding name (as defined in
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 4beb275..2f98fe5 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -200,11 +200,11 @@ static int get_sockaddr(AVFormatContext *s,
 static void init_rtp_handler(RTPDynamicProtocolHandler *handler,
                              RTSPStream *rtsp_st, AVStream *st)
 {
-    AVCodecContext *codec = st ? st->codec : NULL;
+    AVCodecParameters *par = st ? st->codecpar : NULL;
     if (!handler)
         return;
-    if (codec)
-        codec->codec_id          = handler->codec_id;
+    if (par)
+        par->codec_id          = handler->codec_id;
     rtsp_st->dynamic_handler = handler;
     if (st)
         st->need_parsing = handler->need_parsing;
@@ -239,7 +239,7 @@ static int sdp_parse_rtpmap(AVFormatContext *s,
                             AVStream *st, RTSPStream *rtsp_st,
                             int payload_type, const char *p)
 {
-    AVCodecContext *codec = st->codec;
+    AVCodecParameters *par = st->codecpar;
     char buf[256];
     int i;
     AVCodec *c;
@@ -253,22 +253,22 @@ static int sdp_parse_rtpmap(AVFormatContext *s,
     if (payload_type < RTP_PT_PRIVATE) {
         /* We are in a standard case
          * (from http://www.iana.org/assignments/rtp-parameters). */
-        codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
+        par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
     }
 
-    if (codec->codec_id == AV_CODEC_ID_NONE) {
+    if (par->codec_id == AV_CODEC_ID_NONE) {
         RTPDynamicProtocolHandler *handler =
-            ff_rtp_handler_find_by_name(buf, codec->codec_type);
+            ff_rtp_handler_find_by_name(buf, par->codec_type);
         init_rtp_handler(handler, rtsp_st, st);
         /* If no dynamic handler was found, check with the list of standard
          * allocated types, if such a stream for some reason happens to
          * use a private payload type. This isn't handled in rtpdec.c, since
          * the format name from the rtpmap line never is passed into rtpdec. */
         if (!rtsp_st->dynamic_handler)
-            codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
+            par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
     }
 
-    c = avcodec_find_decoder(codec->codec_id);
+    c = avcodec_find_decoder(par->codec_id);
     if (c && c->name)
         c_name = c->name;
     else
@@ -276,23 +276,23 @@ static int sdp_parse_rtpmap(AVFormatContext *s,
 
     get_word_sep(buf, sizeof(buf), "/", &p);
     i = atoi(buf);
-    switch (codec->codec_type) {
+    switch (par->codec_type) {
     case AVMEDIA_TYPE_AUDIO:
         av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
-        codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
-        codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
+        par->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
+        par->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
         if (i > 0) {
-            codec->sample_rate = i;
-            avpriv_set_pts_info(st, 32, 1, codec->sample_rate);
+            par->sample_rate = i;
+            avpriv_set_pts_info(st, 32, 1, par->sample_rate);
             get_word_sep(buf, sizeof(buf), "/", &p);
             i = atoi(buf);
             if (i > 0)
-                codec->channels = i;
+                par->channels = i;
         }
         av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
-               codec->sample_rate);
+               par->sample_rate);
         av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n",
-               codec->channels);
+               par->channels);
         break;
     case AVMEDIA_TYPE_VIDEO:
         av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
@@ -495,17 +495,17 @@ static void sdp_parse_line(AVFormatContext *s, 
SDPParseState *s1,
                 return;
             st->id = rt->nb_rtsp_streams - 1;
             rtsp_st->stream_index = st->index;
-            st->codec->codec_type = codec_type;
+            st->codecpar->codec_type = codec_type;
             if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) {
                 RTPDynamicProtocolHandler *handler;
                 /* if standard payload type, we can find the codec right now */
-                ff_rtp_get_codec_info(st->codec, rtsp_st->sdp_payload_type);
-                if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
-                    st->codec->sample_rate > 0)
-                    avpriv_set_pts_info(st, 32, 1, st->codec->sample_rate);
+                ff_rtp_get_codec_info(st->codecpar, rtsp_st->sdp_payload_type);
+                if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
+                    st->codecpar->sample_rate > 0)
+                    avpriv_set_pts_info(st, 32, 1, st->codecpar->sample_rate);
                 /* Even static payload types may need a custom depacketizer */
                 handler = ff_rtp_handler_find_by_id(
-                              rtsp_st->sdp_payload_type, 
st->codec->codec_type);
+                              rtsp_st->sdp_payload_type, 
st->codecpar->codec_type);
                 init_rtp_handler(handler, rtsp_st, st);
                 finalize_rtp_handler_init(s, rtsp_st, st);
             }
@@ -590,7 +590,7 @@ static void sdp_parse_line(AVFormatContext *s, 
SDPParseState *s1,
         } else if (av_strstart(p, "SampleRate:integer;", &p) &&
                    s->nb_streams > 0) {
             st = s->streams[s->nb_streams - 1];
-            st->codec->sample_rate = atoi(p);
+            st->codecpar->sample_rate = atoi(p);
         } else if (av_strstart(p, "crypto:", &p) && s->nb_streams > 0) {
             // RFC 4568
             rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
@@ -1498,7 +1498,7 @@ int ff_rtsp_make_setup_request(AVFormatContext *s, const 
char *host, int port,
              * will return an error. Therefore, we skip those streams. */
             if (rt->server_type == RTSP_SERVER_WMS &&
                 (rtsp_st->stream_index < 0 ||
-                 s->streams[rtsp_st->stream_index]->codec->codec_type ==
+                 s->streams[rtsp_st->stream_index]->codecpar->codec_type ==
                     AVMEDIA_TYPE_DATA))
                 continue;
             snprintf(transport, sizeof(transport) - 1,
@@ -2356,7 +2356,7 @@ static int rtp_read_header(AVFormatContext *s)
     int ret, port;
     URLContext* in = NULL;
     int payload_type;
-    AVCodecContext codec = { 0 };
+    AVCodecParameters *par = NULL;
     struct sockaddr_storage addr;
     AVIOContext pb;
     socklen_t addrlen = sizeof(addr);
@@ -2397,13 +2397,19 @@ static int rtp_read_header(AVFormatContext *s)
     ffurl_close(in);
     in = NULL;
 
-    if (ff_rtp_get_codec_info(&codec, payload_type)) {
+    par = avcodec_parameters_alloc();
+    if (!par) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    if (ff_rtp_get_codec_info(par, payload_type)) {
         av_log(s, AV_LOG_ERROR, "Unable to receive RTP payload type %d "
                                 "without an SDP file describing it\n",
                                  payload_type);
         goto fail;
     }
-    if (codec.codec_type != AVMEDIA_TYPE_DATA) {
+    if (par->codec_type != AVMEDIA_TYPE_DATA) {
         av_log(s, AV_LOG_WARNING, "Guessing on RTP content - if not received "
                                   "properly you need an SDP file "
                                   "describing it\n");
@@ -2415,10 +2421,11 @@ static int rtp_read_header(AVFormatContext *s)
     snprintf(sdp, sizeof(sdp),
              "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
              addr.ss_family == AF_INET ? 4 : 6, host,
-             codec.codec_type == AVMEDIA_TYPE_DATA  ? "application" :
-             codec.codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
+             par->codec_type == AVMEDIA_TYPE_DATA  ? "application" :
+             par->codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
              port, payload_type);
     av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
+    avcodec_parameters_free(&par);
 
     ffio_init_context(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
     s->pb = &pb;
@@ -2433,6 +2440,7 @@ static int rtp_read_header(AVFormatContext *s)
     return ret;
 
 fail:
+    avcodec_parameters_free(&par);
     if (in)
         ffurl_close(in);
     ff_network_close();
-- 
2.0.0

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