fate/id3v2: Add test for reading and writing UTF-16 BOM tags

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

tests/fate/id3v2.mak

@@ -7,6 +7,11 @@ fate-id3v2-priv-remux: CMD = transcode mp3 $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp
 FATE_ID3V2_FFMPEG_FFPROBE-$(call REMUX, AIFF, WAV_DEMUXER) += fate-id3v2-chapters
 fate-id3v2-chapters: CMD = transcode wav $(TARGET_SAMPLES)/wav/200828-005.wav aiff "-c copy -metadata:c:0 description=foo -metadata:c:0 date=2021 -metadata:c copyright=none -metadata:c:1 genre=nonsense -write_id3v2 1" "-c copy -t 0.05" "-show_entries format_tags:chapters"
 
+# Tests reading and writing UTF-16 BOM strings; also tests
+# the AIFF muxer's and demuxer's ability to preserve channel layouts.
+FATE_ID3V2_FFMPEG_FFPROBE-$(call REMUX, AIFF, WAV_DEMUXER FLAC_DEMUXER PCM_S16LE_DECODER MJPEG_DECODER ARESAMPLE_FILTER CHANNELMAP_FILTER PCM_S24BE_ENCODER) += fate-id3v2-utf16-bom
+fate-id3v2-utf16-bom: CMD = transcode wav $(TARGET_SAMPLES)/audio-reference/yo.raw-short.wav aiff "-map 0:a -map 1:v -af aresample,channelmap=channel_layout=hexagonal,aresample -c:a pcm_s24be -c:v copy -write_id3v2 1 -id3v2_version 3 -map_metadata:g:0 1:g -map_metadata:s:v 1:g" "-c copy -t 0.05" "-show_entries stream=channel_layout:stream_tags:format_tags" "-i $(TARGET_SAMPLES)/cover_art/cover_art.flac"
+
 FATE_SAMPLES_FFPROBE        += $(FATE_ID3V2_FFPROBE-yes)
 FATE_SAMPLES_FFMPEG_FFPROBE += $(FATE_ID3V2_FFMPEG_FFPROBE-yes)
 fate-id3v2: $(FATE_ID3V2_FFPROBE-yes) $(FATE_ID3V2_FFMPEG_FFPROBE-yes)

tests/ref/fate/id3v2-utf16-bom

@@ -0,0 +1,42 @@
+9b8bfdf87a8d3d089819ef9f6f264ec4 *tests/data/fate/id3v2-utf16-bom.aiff
+885482 tests/data/fate/id3v2-utf16-bom.aiff
+#tb 0: 1/90000
+#media_type 0: video
+#codec_id 0: mjpeg
+#dimensions 0: 350x350
+#sar 0: 1/1
+#tb 1: 1/48000
+#media_type 1: audio
+#codec_id 1: pcm_s24be
+#sample_rate 1: 48000
+#channel_layout_name 1: hexagonal
+0,          0,          0,        0,    19650, 0xd5662610
+1,          0,          0,      227,     4086, 0x00000000
+1,        227,        227,      227,     4086, 0x00000000
+1,        454,        454,      227,     4086, 0x00000000
+1,        681,        681,      227,     4086, 0x667b2643
+1,        908,        908,      227,     4086, 0x9a09957d
+1,       1135,       1135,      227,     4086, 0x763e27c5
+1,       1362,       1362,      227,     4086, 0x2a47f536
+1,       1589,       1589,      227,     4086, 0xed32e5f2
+1,       1816,       1816,      227,     4086, 0x2e96c720
+1,       2043,       2043,      227,     4086, 0x84c5b5f0
+1,       2270,       2270,      227,     4086, 0xe3dfeefc
+[STREAM]
+channel_layout=hexagonal
+[/STREAM]
+[STREAM]
+TAG:title=Дороги
+TAG:comment=Other
+[/STREAM]
+[FORMAT]
+TAG:artist=Мельница
+TAG:RATING=0
+TAG:album=Ангелофрения
+TAG:title=Дороги
+TAG:tracktotal=11
+TAG:totaltracks=11
+TAG:genre=Folk
+TAG:track=2
+TAG:date=2012
+[/FORMAT]