sbc: add raw demuxer for SBC

doc/general.texi

@@ -501,6 +501,7 @@ library:
 @item raw NULL                  @tab X @tab
 @item raw video                 @tab X @tab X
 @item raw id RoQ                @tab X @tab
+@item raw SBC                   @tab   @tab X
 @item raw Shorten               @tab   @tab X
 @item raw TAK                   @tab   @tab X
 @item raw TrueHD                @tab X @tab X

libavformat/Makefile

@@ -452,6 +452,7 @@ OBJS-$(CONFIG_S337M_DEMUXER)             += s337m.o spdif.o
 OBJS-$(CONFIG_SAMI_DEMUXER)              += samidec.o subtitles.o
 OBJS-$(CONFIG_SAP_DEMUXER)               += sapdec.o
 OBJS-$(CONFIG_SAP_MUXER)                 += sapenc.o
+OBJS-$(CONFIG_SBC_DEMUXER)               += sbcdec.o rawdec.o
 OBJS-$(CONFIG_SBG_DEMUXER)               += sbgdec.o
 OBJS-$(CONFIG_SCC_DEMUXER)               += sccdec.o subtitles.o
 OBJS-$(CONFIG_SCC_MUXER)                 += sccenc.o subtitles.o

libavformat/allformats.c

@@ -354,6 +354,7 @@ extern AVInputFormat  ff_s337m_demuxer;
 extern AVInputFormat  ff_sami_demuxer;
 extern AVInputFormat  ff_sap_demuxer;
 extern AVOutputFormat ff_sap_muxer;
+extern AVInputFormat  ff_sbc_demuxer;
 extern AVInputFormat  ff_sbg_demuxer;
 extern AVInputFormat  ff_scc_demuxer;
 extern AVOutputFormat ff_scc_muxer;

libavformat/sbcdec.c

+/*
+ * RAW SBC demuxer
+ * Copyright (C) 2017  Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * 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 "avformat.h"
+#include "rawdec.h"
+
+AVInputFormat ff_sbc_demuxer = {
+    .name           = "sbc",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw SBC (low-complexity subband codec)"),
+    .extensions     = "sbc,msbc",
+    .raw_codec_id   = AV_CODEC_ID_SBC,
+    .read_header    = ff_raw_audio_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .flags          = AVFMT_GENERIC_INDEX,
+};