RealAudio Lossless decoder

Changelog

@@ -13,6 +13,7 @@ version <next>:
 - ID3v2 attached pictures reading and writing
 - WMA Lossless decoder
 - XBM encoder
+- RealAudio Lossless decoder
 
 
 version 0.8:

doc/general.texi

@@ -752,6 +752,7 @@ following image formats are supported:
     @tab Real 28800 bit/s codec
 @item RealAudio 3.0 (dnet)   @tab IX  @tab  X
     @tab Real low bitrate AC-3 codec
+@item RealAudio Lossless     @tab     @tab  X
 @item RealAudio SIPR / ACELP.NET @tab     @tab  X
 @item Shorten                @tab     @tab  X
 @item Sierra VMD audio       @tab     @tab  X

libavcodec/Makefile

@@ -322,6 +322,7 @@ OBJS-$(CONFIG_R210_DECODER)            += r210dec.o
 OBJS-$(CONFIG_RA_144_DECODER)          += ra144dec.o ra144.o celp_filters.o
 OBJS-$(CONFIG_RA_144_ENCODER)          += ra144enc.o ra144.o celp_filters.o
 OBJS-$(CONFIG_RA_288_DECODER)          += ra288.o celp_math.o celp_filters.o
+OBJS-$(CONFIG_RALF_DECODER)            += ralf.o
 OBJS-$(CONFIG_RAWVIDEO_DECODER)        += rawdec.o
 OBJS-$(CONFIG_RAWVIDEO_ENCODER)        += rawenc.o
 OBJS-$(CONFIG_RL2_DECODER)             += rl2.o

libavcodec/allcodecs.c

@@ -280,6 +280,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER (QDM2, qdm2);
     REGISTER_ENCDEC  (RA_144, ra_144);
     REGISTER_DECODER (RA_288, ra_288);
+    REGISTER_DECODER (RALF, ralf);
     REGISTER_DECODER (SHORTEN, shorten);
     REGISTER_DECODER (SIPR, sipr);
     REGISTER_DECODER (SMACKAUD, smackaud);

libavcodec/avcodec.h

@@ -383,6 +383,7 @@ enum CodecID {
     CODEC_ID_8SVX_EXP,
     CODEC_ID_8SVX_FIB,
     CODEC_ID_BMV_AUDIO,
+    CODEC_ID_RALF,
 
     /* subtitle codecs */
     CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.

libavcodec/version.h

@@ -21,7 +21,7 @@
 #define AVCODEC_VERSION_H
 
 #define LIBAVCODEC_VERSION_MAJOR 54
-#define LIBAVCODEC_VERSION_MINOR  9
+#define LIBAVCODEC_VERSION_MINOR 10
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/rm.c

@@ -42,5 +42,6 @@ const AVCodecTag ff_rm_codec_tags[] = {
     { CODEC_ID_SIPR,   MKTAG('s','i','p','r') },
     { CODEC_ID_AAC,    MKTAG('r','a','a','c') },
     { CODEC_ID_AAC,    MKTAG('r','a','c','p') },
+    { CODEC_ID_RALF,   MKTAG('L','S','D',':') },
     { CODEC_ID_NONE },
 };

libavformat/rmdec.c

@@ -310,6 +310,15 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
         /* ra type header */
         if (rm_read_audio_stream_info(s, pb, st, rst, 0))
             return -1;
+    } else if (v == MKBETAG('L', 'S', 'D', ':')) {
+        avio_seek(pb, -4, SEEK_CUR);
+        if ((ret = rm_read_extradata(pb, st->codec, codec_data_size)) < 0)
+            return ret;
+
+        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+        st->codec->codec_tag  = AV_RL32(st->codec->extradata);
+        st->codec->codec_id   = ff_codec_get_id(ff_rm_codec_tags,
+                                                st->codec->codec_tag);
     } else {
         int fps;
         if (avio_rl32(pb) != MKTAG('V', 'I', 'D', 'O')) {