FATE_ID3V2_FFPROBE-$(CONFIG_MP3_DEMUXER) += fate-id3v2-priv
fate-id3v2-priv: CMD = probetags $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3

FATE_ID3V2_FFMPEG-$(CONFIG_MP3_DEMUXER) += fate-id3v2-invalid-tags
fate-id3v2-invalid-tags: CMD = run $(FFMPEG) -nostdin -hide_banner -i $(TARGET_SAMPLES)/id3v2/invalid-tags.mp3 -f null - || true
fate-id3v2-invalid-tags: CMP = null

FATE_ID3V2_FFMPEG_FFPROBE-$(call REMUX, MP3) += fate-id3v2-priv-remux
fate-id3v2-priv-remux: CMD = transcode mp3 $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 mp3 "-c copy" "-c copy -t 0.1" "-show_entries format_tags"

ID3V2_TESTBIN = libavformat/tests/id3v2$(EXESUF)

FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm
fate-id3v2-comm: $(ID3V2_TESTBIN)
fate-id3v2-comm: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment=test -metadata comment-eng=test2 -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-lyrics
fate-id3v2-lyrics: $(ID3V2_TESTBIN)
fate-id3v2-lyrics: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -id3v2_version 3 -metadata lyrics=test -metadata lyrics-fra=test2 -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-txxx
fate-id3v2-txxx: $(ID3V2_TESTBIN)
fate-id3v2-txxx: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata foobar=baz -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

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"

# Test legacy COMM descriptor behavior: non-empty descriptor becomes the key.
# MusicMatch tools embed artist bio etc. this way.
FATE_ID3V2_FFPROBE-$(CONFIG_ASF_DEMUXER) += fate-id3v2-wma-comm
fate-id3v2-wma-comm: CMD = probetags $(TARGET_SAMPLES)/cover_art/wma_with_ID3_APIC_trimmed.wma

FATE_ID3V2_FFPROBE-$(CONFIG_ASF_O_DEMUXER) += fate-id3v2-wma-comm-asf_o
fate-id3v2-wma-comm-asf_o: CMD = probetags -f asf_o $(TARGET_SAMPLES)/cover_art/wma_with_ID3_APIC_trimmed.wma

# Round-trip: write COMM with descriptor, read back (legacy: descriptor as key).
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-descriptor
fate-id3v2-comm-descriptor: $(ID3V2_TESTBIN)
fate-id3v2-comm-descriptor: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-MusicMatch_Bio-eng=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# Round-trip: COMM descriptor containing a dash is preserved.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-dashed-descriptor
fate-id3v2-comm-dashed-descriptor: $(ID3V2_TESTBIN)
fate-id3v2-comm-dashed-descriptor: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-Foo-Bar-eng=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# Round-trip: COMM with descriptor and empty lang (trailing dash).
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-descriptor-no-lang
fate-id3v2-comm-descriptor-no-lang: $(ID3V2_TESTBIN)
fate-id3v2-comm-descriptor-no-lang: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-MusicMatch_Bio-=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# Descriptor that looks like a lang code (eng) with empty lang: must round-trip
# as comment-eng- (trailing dash), not comment-eng (which means lang-only).
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-lang-as-descriptor
fate-id3v2-comm-lang-as-descriptor: $(ID3V2_TESTBIN)
fate-id3v2-comm-lang-as-descriptor: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-eng-=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# Raw 4CC key "COMM" (length 4): treated as bare COMM frame, no descriptor, no lang.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-raw-key
fate-id3v2-comm-raw-key: $(ID3V2_TESTBIN)
fate-id3v2-comm-raw-key: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata COMM=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# Raw 4CC key with suffix ("COMM-eng"): not an exact 4CC match, must pass through as TXXX.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-raw-key-suffix
fate-id3v2-comm-raw-key-suffix: $(ID3V2_TESTBIN)
fate-id3v2-comm-raw-key-suffix: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata COMM-eng=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# comment-xyz: single 3-char suffix that is NOT a valid ISO 639-2 lang → descriptor only, no lang.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-invalid-lang
fate-id3v2-comm-invalid-lang: $(ID3V2_TESTBIN)
fate-id3v2-comm-invalid-lang: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-xyz=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# comment-foobar: single suffix longer than 3 chars → descriptor only, no lang.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-long-descriptor
fate-id3v2-comm-long-descriptor: $(ID3V2_TESTBIN)
fate-id3v2-comm-long-descriptor: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-foobar=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# comment-desc-xyz: multi-dash, last component "xyz" not a valid ISO 639-2 lang → full "desc-xyz" as descriptor.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-multi-invalid-lang
fate-id3v2-comm-multi-invalid-lang: $(ID3V2_TESTBIN)
fate-id3v2-comm-multi-invalid-lang: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-desc-xyz=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

# comment-sort must not be treated as COMM (lang "sor"): it must pass through as TXXX.
FATE_ID3V2_RAW-$(call REMUX, MP3) += fate-id3v2-comm-sort
fate-id3v2-comm-sort: $(ID3V2_TESTBIN)
fate-id3v2-comm-sort: CMD = run_with_temp "$(FFMPEG) -nostdin -hide_banner -loglevel error -i $(TARGET_SAMPLES)/id3v2/id3v2_priv.mp3 -map_metadata -1 -c copy -fflags +bitexact -metadata comment-sort=test -f mp3 -y" "$(ID3V2_TESTBIN)" mp3

FATE_SAMPLES_FFPROBE        += $(FATE_ID3V2_FFPROBE-yes)
FATE_SAMPLES_FFMPEG         += $(FATE_ID3V2_FFMPEG-yes) $(FATE_ID3V2_RAW-yes)
FATE_SAMPLES_FFMPEG_FFPROBE += $(FATE_ID3V2_FFMPEG_FFPROBE-yes)
fate-id3v2: $(FATE_ID3V2_FFPROBE-yes) $(FATE_ID3V2_FFMPEG_FFPROBE-yes) $(FATE_ID3V2_FFMPEG-yes) $(FATE_ID3V2_RAW-yes)