demux: avi: add support for creative adpcm

refs samples/A-codecs/Creative/

NEWS

@@ -51,6 +51,7 @@ Demuxers:
  * Fixes for DTS detection in WAV and MKV files
  * Basic support for MPEG4-SL in TS and T-DMB
  * Support for Creative ADPCM/alaw/ulaw/S16L in VOC files
+ * Support for Creative ADPCM in AVI
 
 Stream filter:
  * Added ARIB STD-B25 TS streams decoder

include/vlc_codecs.h

@@ -252,6 +252,8 @@ ATTR_PACKED
 #define WAVE_FORMAT_WMAP                0x0162 /* WMA 9 Professional */
 #define WAVE_FORMAT_WMAL                0x0163 /* WMA 9 Lossless */
 
+#define WAVE_FORMAT_CREATIVE_ADPCM      0x0200 /* Creative */
+
 #define WAVE_FORMAT_ULEAD_DV_AUDIO_NTSC 0x0215 /* Ulead */
 #define WAVE_FORMAT_ULEAD_DV_AUDIO_PAL  0x0216 /* Ulead */
 
@@ -369,6 +371,7 @@ wave_format_tag_to_fourcc[] =
     { WAVE_FORMAT_ALAW,             VLC_CODEC_ALAW,                   "A-Law" },
     { WAVE_FORMAT_MULAW,            VLC_CODEC_MULAW,                  "Mu-Law" },
     { WAVE_FORMAT_IMA_ADPCM,        VLC_CODEC_ADPCM_IMA_WAV,          "Ima-ADPCM" },
+    { WAVE_FORMAT_CREATIVE_ADPCM,   VLC_CODEC_ADPCM_CREATIVE,         "Creative ADPCM" },
     { WAVE_FORMAT_YAMAHA_ADPCM,     VLC_CODEC_ADPCM_YAMAHA,           "Yamaha ADPCM" },
     { WAVE_FORMAT_TRUESPEECH,       VLC_CODEC_TRUESPEECH,             "Truespeech" },
     { WAVE_FORMAT_GSM610,           VLC_CODEC_GSM_MS,                 "Microsoft WAV GSM" },

include/vlc_fourcc.h

@@ -395,6 +395,7 @@
 #define VLC_CODEC_ADPCM_YAMAHA               VLC_FOURCC('m','s',0x00,0x20)
 #define VLC_CODEC_ADPCM_DK3                  VLC_FOURCC('m','s',0x00,0x62)
 #define VLC_CODEC_ADPCM_DK4                  VLC_FOURCC('m','s',0x00,0x61)
+#define VLC_CODEC_ADPCM_CREATIVE             VLC_FOURCC('m','s',0x00,0xC0)
 #define VLC_CODEC_ADPCM_SBPRO_2              VLC_FOURCC('m','s',0x00,0xC2)
 #define VLC_CODEC_ADPCM_SBPRO_3              VLC_FOURCC('m','s',0x00,0xC3)
 #define VLC_CODEC_ADPCM_SBPRO_4              VLC_FOURCC('m','s',0x00,0xC4)

modules/codec/avcodec/fourcc.c

@@ -344,7 +344,7 @@ static const struct
     { VLC_CODEC_ADPCM_ADX, AV_CODEC_ID_ADPCM_ADX, AUDIO_ES },
     { VLC_CODEC_ADPCM_EA, AV_CODEC_ID_ADPCM_EA, AUDIO_ES },
     { VLC_CODEC_ADPCM_G726, AV_CODEC_ID_ADPCM_G726, AUDIO_ES },
-    /* AV_CODEC_ID_ADPCM_CT */
+    { VLC_CODEC_ADPCM_CREATIVE, AV_CODEC_ID_ADPCM_CT, AUDIO_ES },
     { VLC_CODEC_ADPCM_SWF, AV_CODEC_ID_ADPCM_SWF, AUDIO_ES },
     { VLC_CODEC_ADPCM_YAMAHA, AV_CODEC_ID_ADPCM_YAMAHA, AUDIO_ES },
     { VLC_CODEC_ADPCM_SBPRO_4, AV_CODEC_ID_ADPCM_SBPRO_4, AUDIO_ES },

modules/demux/wav.c

@@ -79,6 +79,7 @@ static int ChunkFind( demux_t *, const char *, unsigned int * );
 
 static int FrameInfo_IMA_ADPCM( unsigned int *, int *, const es_format_t * );
 static int FrameInfo_MS_ADPCM ( unsigned int *, int *, const es_format_t * );
+static int FrameInfo_Creative_ADPCM( unsigned int *, int *, const es_format_t * );
 static int FrameInfo_PCM      ( unsigned int *, int *, const es_format_t * );
 static int FrameInfo_MSGSM    ( unsigned int *, int *, const es_format_t * );
 
@@ -345,6 +346,11 @@ static int Open( vlc_object_t * p_this )
                                  &p_sys->fmt ) )
             goto error;
         break;
+    case VLC_CODEC_ADPCM_CREATIVE:
+        if( FrameInfo_Creative_ADPCM( &p_sys->i_frame_size, &p_sys->i_frame_samples,
+                                      &p_sys->fmt ) )
+            goto error;
+        break;
     case VLC_CODEC_MPGA:
     case VLC_CODEC_A52:
         /* FIXME set end of area FIXME */
@@ -572,6 +578,19 @@ static int FrameInfo_IMA_ADPCM( unsigned int *pi_size, int *pi_samples,
     return VLC_SUCCESS;
 }
 
+static int FrameInfo_Creative_ADPCM( unsigned int *pi_size, int *pi_samples,
+                                     const es_format_t *p_fmt )
+{
+    if( p_fmt->audio.i_channels <= 0 )
+        return VLC_EGENERIC;
+
+    /* 4 bits / sample */
+    *pi_samples = p_fmt->audio.i_blockalign * 2 / p_fmt->audio.i_channels;
+    *pi_size = p_fmt->audio.i_blockalign;
+
+    return VLC_SUCCESS;
+}
+
 static int FrameInfo_MSGSM( unsigned int *pi_size, int *pi_samples,
                             const es_format_t *p_fmt )
 {