WHIP: Add WebRTC WHIP muxer.

Author: winlinvip

.gitignore

@@ -41,3 +41,4 @@
 /src
 /mapfile
 /tools/python/__pycache__/
+.idea

libavformat/Makefile

@@ -492,6 +492,7 @@ OBJS-$(CONFIG_RSD_DEMUXER)               += rsd.o
 OBJS-$(CONFIG_RPL_DEMUXER)               += rpl.o
 OBJS-$(CONFIG_RSO_DEMUXER)               += rsodec.o rso.o pcm.o
 OBJS-$(CONFIG_RSO_MUXER)                 += rsoenc.o rso.o rawenc.o
+OBJS-$(CONFIG_RTC_MUXER)                 += rtcenc.o avc.o
 OBJS-$(CONFIG_RTP_MPEGTS_MUXER)          += rtpenc_mpegts.o
 OBJS-$(CONFIG_RTP_MUXER)                 += rtp.o         \
                                             rtpenc_aac.o     \

libavformat/allformats.c

@@ -391,6 +391,7 @@ extern const AVInputFormat  ff_rpl_demuxer;
 extern const AVInputFormat  ff_rsd_demuxer;
 extern const AVInputFormat  ff_rso_demuxer;
 extern const FFOutputFormat ff_rso_muxer;
+extern const FFOutputFormat ff_rtc_muxer;
 extern const AVInputFormat  ff_rtp_demuxer;
 extern const FFOutputFormat ff_rtp_muxer;
 extern const FFOutputFormat ff_rtp_mpegts_muxer;

libavformat/rtcenc.c

@@ -0,0 +1,84 @@
+/*
+ * FLV muxer
+ * Copyright (c) 2003 The FFmpeg Project
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/dict.h"
+#include "libavutil/avassert.h"
+#include "libavutil/mathematics.h"
+#include "libavcodec/codec_desc.h"
+#include "libavcodec/mpeg4audio.h"
+#include "avformat.h"
+#include "internal.h"
+#include "mux.h"
+#include "libavutil/opt.h"
+
+typedef struct RTCContext {
+    AVClass *av_class;
+} RTCContext;
+
+static int rtc_init(struct AVFormatContext *s)
+{
+    return 0;
+}
+
+static int rtc_write_header(struct AVFormatContext *s)
+{
+    return 0;
+}
+
+static int rtc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
+{
+    return 0;
+}
+
+static int rtc_write_trailer(struct AVFormatContext *s)
+{
+    return 0;
+}
+
+static void rtc_deinit(struct AVFormatContext *s)
+{
+}
+
+static const AVOption options[] = {
+    { NULL },
+};
+
+static const AVClass rtc_muxer_class = {
+    .class_name = "RTC WHIP muxer",
+    .item_name  = av_default_item_name,
+    .option     = NULL,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+const FFOutputFormat ff_rtc_muxer = {
+    .p.name             = "rtc",
+    .p.long_name        = NULL_IF_CONFIG_SMALL("WebRTC WHIP muxer"),
+    .p.audio_codec      = AV_CODEC_ID_OPUS,
+    .p.video_codec      = AV_CODEC_ID_H264,
+    .p.flags            = AVFMT_NOFILE,
+    .p.priv_class       = &rtc_muxer_class,
+    .priv_data_size     = sizeof(RTCContext),
+    .init               = rtc_init,
+    .write_header       = rtc_write_header,
+    .write_packet       = rtc_write_packet,
+    .write_trailer      = rtc_write_trailer,
+    .deinit             = rtc_deinit,
+};