X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fsdp.c;h=11b50a0d071e32e6811dbde73dd1714aa99c3d00;hb=b5a69e79c579e6e15e2019ffd34ef0e09aeab586;hp=37eee264858fe8a70e40f4ebb16ddea7c3a8f04f;hpb=7876f14f8be9d78de1875ff38390d2a37ac86ec3;p=ffmpeg

diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 37eee264858..11b50a0d071 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -156,6 +156,8 @@ static char *extradata2psets(AVCodecContext *c)
     char *psets, *p;
     const uint8_t *r;
     const char *pset_string = "; sprop-parameter-sets=";
+    uint8_t *orig_extradata = NULL;
+    int orig_extradata_size = 0;
 
     if (c->extradata_size > MAX_EXTRADATA_SIZE) {
         av_log(c, AV_LOG_ERROR, "Too much extradata!\n");
@@ -172,6 +174,15 @@ static char *extradata2psets(AVCodecContext *c)
 
             return NULL;
         }
+
+        orig_extradata_size = c->extradata_size;
+        orig_extradata = av_mallocz(orig_extradata_size +
+                                    FF_INPUT_BUFFER_PADDING_SIZE);
+        if (!orig_extradata) {
+            av_bitstream_filter_close(bsfc);
+            return NULL;
+        }
+        memcpy(orig_extradata, c->extradata, orig_extradata_size);
         av_bitstream_filter_filter(bsfc, c, NULL, &dummy_p, &dummy_int, NULL, 0, 0);
         av_bitstream_filter_close(bsfc);
     }
@@ -179,6 +190,7 @@ static char *extradata2psets(AVCodecContext *c)
     psets = av_mallocz(MAX_PSET_SIZE);
     if (psets == NULL) {
         av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the parameter sets.\n");
+        av_free(orig_extradata);
         return NULL;
     }
     memcpy(psets, pset_string, strlen(pset_string));
@@ -208,6 +220,11 @@ static char *extradata2psets(AVCodecContext *c)
         p += strlen(p);
         r = r1;
     }
+    if (orig_extradata) {
+        av_free(c->extradata);
+        c->extradata      = orig_extradata;
+        c->extradata_size = orig_extradata_size;
+    }
 
     return psets;
 }
@@ -402,7 +419,7 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
                                      payload_type, config ? config : "");
             break;
         case CODEC_ID_AAC:
-            if (fmt && fmt->oformat->priv_class &&
+            if (fmt && fmt->oformat && fmt->oformat->priv_class &&
                 av_opt_flag_is_set(fmt->priv_data, "rtpflags", "latm")) {
                 config = latm_context2config(c);
                 if (!config)
@@ -517,6 +534,14 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
                                          payload_type,
                                          8000, c->channels);
             break;
+        case CODEC_ID_ADPCM_G726: {
+            if (payload_type >= RTP_PT_PRIVATE)
+                av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n",
+                                         payload_type,
+                                         c->bits_per_coded_sample*8,
+                                         c->sample_rate);
+            break;
+        }
         default:
             /* Nothing special to do here... */
             break;