Hi!
Attached patch adds little-endian G.726 support to rtpenc, using the
MIME-type suggested by RFC 3551.
Please comment, Carl Eugen
From 5834684eb2692fbc10f9e70ced66cedab661a828 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Sat, 26 Aug 2017 11:49:46 +0200
Subject: [PATCH 2/2] lavf/rtpenc: Add support for little-endian G.726.
---
libavformat/rtpenc.c | 2 ++
libavformat/sdp.c | 8 ++++++++
2 files changed, 10 insertions(+)
diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index af631a8..573593f 100644
--- a/libavformat/rtpenc.c
+++ b/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:
diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 7751e67..935b5a1 100644
--- a/libavformat/sdp.c
+++ b/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",
--
1.7.10.4
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