+ case VLC_FOURCC( 'l', 'p', 'c', 'm' ):
+ {
+ MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
+ if( p_soun->i_qt_version == 2 &&
+ p_soun->i_qt_description > 20 + 28 )
+ {
+ /* Flags:
+ * 0x01: IsFloat
+ * 0x02: IsBigEndian
+ * 0x04: IsSigned
+ */
+ static const struct {
+ unsigned i_flags;
+ unsigned i_mask;
+ unsigned i_bits;
+ vlc_fourcc_t i_codec;
+ } p_formats[] = {
+ { 0x01, 0x03, 32, VLC_CODEC_F32L },
+ { 0x01, 0x03, 64, VLC_CODEC_F64L },
+ { 0x01|0x02, 0x03, 32, VLC_CODEC_F32B },
+ { 0x01|0x02, 0x03, 64, VLC_CODEC_F64B },
+
+ { 0x00, 0x05, 8, VLC_CODEC_U8 },
+ { 0x00| 0x04, 0x05, 8, VLC_CODEC_S8 },
+
+ { 0x00, 0x07, 16, VLC_CODEC_U16L },
+ { 0x00|0x02, 0x07, 16, VLC_CODEC_U16B },
+ { 0x00 |0x04, 0x07, 16, VLC_CODEC_S16L },
+ { 0x00|0x02|0x04, 0x07, 16, VLC_CODEC_S16B },
+
+ { 0x00, 0x07, 24, VLC_CODEC_U24L },
+ { 0x00|0x02, 0x07, 24, VLC_CODEC_U24B },
+ { 0x00 |0x04, 0x07, 24, VLC_CODEC_S24L },
+ { 0x00|0x02|0x04, 0x07, 24, VLC_CODEC_S24B },
+
+ { 0x00, 0x07, 32, VLC_CODEC_U32L },
+ { 0x00|0x02, 0x07, 32, VLC_CODEC_U32B },
+ { 0x00 |0x04, 0x07, 32, VLC_CODEC_S32L },
+ { 0x00|0x02|0x04, 0x07, 32, VLC_CODEC_S32B },
+
+ {0, 0, 0, 0}
+ };
+ uint32_t i_bits = GetDWBE(&p_soun->p_qt_description[20 + 20]);
+ uint32_t i_flags = GetDWBE(&p_soun->p_qt_description[20 + 24]);
+
+ for( int i = 0; p_formats[i].i_codec; i++ )
+ {
+ if( p_formats[i].i_bits == i_bits &&
+ (i_flags & p_formats[i].i_mask) == p_formats[i].i_flags )
+ {
+ p_track->fmt.i_codec = p_formats[i].i_codec;
+ p_track->fmt.audio.i_bitspersample = i_bits;
+ p_track->fmt.audio.i_blockalign = p_soun->i_channelcount * i_bits / 8;
+ p_track->i_sample_size = p_track->fmt.audio.i_blockalign;