lavf/rtpenc: Add support for little-endian G.726.

Changelog

@@ -52,6 +52,7 @@ version <next>:
 - V4L2 mem2mem HW assisted codecs
 - Rockchip MPP hardware decoding
 - vmafmotion video filter
+- use MIME type "G726" for little-endian G.726, "AAL2-G726" for big-endian G.726
 
 
 version 3.3:

libavformat/rtpenc.c

@@ -78,6 +78,7 @@ static int is_supported(enum AVCodecID id)
     case AV_CODEC_ID_VP9:
     case AV_CODEC_ID_ADPCM_G722:
     case AV_CODEC_ID_ADPCM_G726:
+    case AV_CODEC_ID_ADPCM_G726LE:
     case AV_CODEC_ID_ILBC:
     case AV_CODEC_ID_MJPEG:
     case AV_CODEC_ID_SPEEX:
@@ -550,6 +551,7 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
          * clock. */
         return rtp_send_samples(s1, pkt->data, size, 8 * st->codecpar->channels);
     case AV_CODEC_ID_ADPCM_G726:
+    case AV_CODEC_ID_ADPCM_G726LE:
         return rtp_send_samples(s1, pkt->data, size,
                                 st->codecpar->bits_per_coded_sample * st->codecpar->channels);
     case AV_CODEC_ID_MP2:

libavformat/sdp.c

@@ -680,6 +680,14 @@ static char *sdp_write_media_attributes(char *buff, int size, AVStream *st, int
                                          p->sample_rate);
             break;
         }
+        case AV_CODEC_ID_ADPCM_G726LE: {
+            if (payload_type >= RTP_PT_PRIVATE)
+                av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n",
+                                         payload_type,
+                                         p->bits_per_coded_sample*8,
+                                         p->sample_rate);
+            break;
+        }
         case AV_CODEC_ID_ILBC:
             av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n"
                                     "a=fmtp:%d mode=%d\r\n",

libavformat/version.h

@@ -33,7 +33,7 @@
 // Also please add any ticket numbers that you believe might be affected here
 #define LIBAVFORMAT_VERSION_MAJOR  57
 #define LIBAVFORMAT_VERSION_MINOR  82
-#define LIBAVFORMAT_VERSION_MICRO 103
+#define LIBAVFORMAT_VERSION_MICRO 104
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                LIBAVFORMAT_VERSION_MINOR, \