diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index ab7a8a5e51..1522c95382 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -447,6 +447,8 @@ enum AVCodecID {
     AV_CODEC_ID_PAF_AUDIO   = MKBETAG('P','A','F','A'),
     AV_CODEC_ID_OPUS        = MKBETAG('O','P','U','S'),
     AV_CODEC_ID_TAK         = MKBETAG('t','B','a','K'),
+    AV_CODEC_ID_EVRC        = MKBETAG('s','e','v','c'),
+    AV_CODEC_ID_SMV         = MKBETAG('s','s','m','v'),
 
     /* subtitle codecs */
     AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index 7508ac3f35..780209470b 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -2343,6 +2343,20 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"),
         .props     = AV_CODEC_PROP_LOSSLESS,
     },
+    {
+        .id        = AV_CODEC_ID_EVRC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "evrc",
+        .long_name = NULL_IF_CONFIG_SMALL("EVRC (Enhanced Variable Rate Codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SMV,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "smv",
+        .long_name = NULL_IF_CONFIG_SMALL("SMV (Selectable Mode Vocoder)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
 
     /* subtitle codecs */
     {
diff --git a/libavformat/isom.c b/libavformat/isom.c
index 3b609db00a..3f419a83dd 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -294,6 +294,8 @@ const AVCodecTag ff_codec_movaudio_tags[] = {
     { AV_CODEC_ID_QDMC,            MKTAG('Q', 'D', 'M', 'C') },
     { AV_CODEC_ID_SPEEX,           MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
     { AV_CODEC_ID_WMAV2,           MKTAG('W', 'M', 'A', '2') },
+    { AV_CODEC_ID_EVRC,            MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
+    { AV_CODEC_ID_SMV,             MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
     { AV_CODEC_ID_NONE, 0 },
 };
 
diff --git a/libavformat/qcp.c b/libavformat/qcp.c
index 3cb85fb00a..1ef86fe34d 100644
--- a/libavformat/qcp.c
+++ b/libavformat/qcp.c
@@ -102,11 +102,9 @@ static int qcp_read_header(AVFormatContext *s)
     if (is_qcelp_13k_guid(buf)) {
         st->codec->codec_id = AV_CODEC_ID_QCELP;
     } else if (!memcmp(buf, guid_evrc, 16)) {
-        av_log(s, AV_LOG_ERROR, "EVRC codec is not supported.\n");
-        return AVERROR_PATCHWELCOME;
+        st->codec->codec_id = AV_CODEC_ID_EVRC;
     } else if (!memcmp(buf, guid_smv, 16)) {
-        av_log(s, AV_LOG_ERROR, "SMV codec is not supported.\n");
-        return AVERROR_PATCHWELCOME;
+        st->codec->codec_id = AV_CODEC_ID_SMV;
     } else {
         av_log(s, AV_LOG_ERROR, "Unknown codec GUID.\n");
         return AVERROR_INVALIDDATA;