Support iLBC in caf.

libavformat/caf.c

@@ -44,6 +44,7 @@ const AVCodecTag ff_codec_caf_tags[] = {
   /*{ AV_CODEC_ID_DVAUDIO,         MKTAG('d','v','c','a') },*/
     { AV_CODEC_ID_GSM,             MKTAG('a','g','s','m') },
     { AV_CODEC_ID_GSM_MS,          MKTAG('m','s', 0, '1') },
+    { AV_CODEC_ID_ILBC,            MKTAG('i','l','b','c') },
     { AV_CODEC_ID_MACE3,           MKTAG('M','A','C','3') },
     { AV_CODEC_ID_MACE6,           MKTAG('M','A','C','6') },
     { AV_CODEC_ID_MP1,             MKTAG('.','m','p','1') },

libavformat/cafenc.c

@@ -75,6 +75,7 @@ static uint32_t samples_per_packet(enum AVCodecID codec_id, int channels) {
         return 64;
     case AV_CODEC_ID_AMR_NB:
     case AV_CODEC_ID_GSM:
+    case AV_CODEC_ID_ILBC:
     case AV_CODEC_ID_QCELP:
         return 160;
     case AV_CODEC_ID_GSM_MS: