nut: support pcm codecs not mapped in avi

The native tags will be used when available.

doc/nut.texi

@@ -50,7 +50,7 @@ to be read big-endian.
 @end multitable
 
 <type> is S for signed integer, U for unsigned integer, F for IEEE float
-<interleaving> is D for default, as a historical artefact.
+<interleaving> is D for default, P is for planar.
 <bits> is 8/16/24/32
 
 @example

libavformat/nut.c

@@ -90,8 +90,33 @@ const AVCodecTag ff_nut_video_tags[] = {
     { AV_CODEC_ID_NONE    , 0                         }
 };
 
+const AVCodecTag ff_nut_audio_tags[] = {
+    { AV_CODEC_ID_PCM_ALAW,         MKTAG('A', 'L', 'A', 'W') },
+    { AV_CODEC_ID_PCM_MULAW,        MKTAG('U', 'L', 'A', 'W') },
+    { AV_CODEC_ID_PCM_F32BE,        MKTAG(32 , 'D', 'F', 'P') },
+    { AV_CODEC_ID_PCM_F32LE,        MKTAG('P', 'F', 'D', 32 ) },
+    { AV_CODEC_ID_PCM_F64BE,        MKTAG(64 , 'D', 'F', 'P') },
+    { AV_CODEC_ID_PCM_F64LE,        MKTAG('P', 'F', 'D', 64 ) },
+    { AV_CODEC_ID_PCM_S16BE,        MKTAG(16 , 'D', 'S', 'P') },
+    { AV_CODEC_ID_PCM_S16LE,        MKTAG('P', 'S', 'D', 16 ) },
+    { AV_CODEC_ID_PCM_S24BE,        MKTAG(24 , 'D', 'S', 'P') },
+    { AV_CODEC_ID_PCM_S24LE,        MKTAG('P', 'S', 'D', 24 ) },
+    { AV_CODEC_ID_PCM_S32BE,        MKTAG(32 , 'D', 'S', 'P') },
+    { AV_CODEC_ID_PCM_S32LE,        MKTAG('P', 'S', 'D', 32 ) },
+    { AV_CODEC_ID_PCM_S8,           MKTAG('P', 'S', 'D',  8 ) },
+    { AV_CODEC_ID_PCM_U16BE,        MKTAG(16 , 'D', 'U', 'P') },
+    { AV_CODEC_ID_PCM_U16LE,        MKTAG('P', 'U', 'D', 16 ) },
+    { AV_CODEC_ID_PCM_U24BE,        MKTAG(24 , 'D', 'U', 'P') },
+    { AV_CODEC_ID_PCM_U24LE,        MKTAG('P', 'U', 'D', 24 ) },
+    { AV_CODEC_ID_PCM_U32BE,        MKTAG(32 , 'D', 'U', 'P') },
+    { AV_CODEC_ID_PCM_U32LE,        MKTAG('P', 'U', 'D', 32 ) },
+    { AV_CODEC_ID_PCM_U8,           MKTAG('P', 'U', 'D',  8 ) },
+    { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
+    { AV_CODEC_ID_NONE,             0                         }
+};
+
 const AVCodecTag * const ff_nut_codec_tags[] = {
-    ff_nut_video_tags, ff_nut_subtitle_tags,
+    ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
     ff_codec_bmp_tags, ff_codec_wav_tags, 0
 };
 

libavformat/nut.h

@@ -105,6 +105,7 @@ typedef struct NUTContext {
 
 extern const AVCodecTag ff_nut_subtitle_tags[];
 extern const AVCodecTag ff_nut_video_tags[];
+extern const AVCodecTag ff_nut_audio_tags[];
 
 extern const AVCodecTag * const ff_nut_codec_tags[];
 

libavformat/nutdec.c

@@ -358,7 +358,12 @@ static int decode_stream_header(NUTContext *nut)
         break;
     case 1:
         st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
-        st->codec->codec_id   = ff_codec_get_id(ff_codec_wav_tags, tmp);
+        st->codec->codec_id   = av_codec_get_id((const AVCodecTag * const []) {
+                                                    ff_nut_audio_tags,
+                                                    ff_codec_wav_tags,
+                                                    0
+                                                },
+                                                tmp);
         break;
     case 2:
         st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;