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in repository ffmpeg.

commit 1de77bb8987e2c7364302c91b9f13958e419124e
Author:     Jun Zhao <[email protected]>
AuthorDate: Fri Aug 28 07:44:27 2026 +0800
Commit:     Jun Zhao <[email protected]>
CommitDate: Tue Sep 8 05:00:37 2026 +0000

    tests/fate: Add a VPK regression test for a zeroed channel layout
    
    Generate the 21-byte sample from issue #24290 and copy it with
    ffmpeg. avformat_find_stream_info() must keep the container channel
    count at 80 instead of replacing it with 0 after adpcm_psx fails to
    open; the decoder cannot be opened, so ffprobe -show_entries is not
    usable here.
    
    Signed-off-by: Jun Zhao <[email protected]>
---
 tests/fate/demux.mak | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/fate/demux.mak b/tests/fate/demux.mak
index 4cdc1a583f..b02f0d5010 100644
--- a/tests/fate/demux.mak
+++ b/tests/fate/demux.mak
@@ -189,6 +189,20 @@ fate-ts-timed-id3-hls-demux: CMD = ffprobe_demux 
$(TARGET_PATH)/tests/data/id3.m
 FATE_SAMPLES_DEMUX-$(call PARSERDEM, JPEGXS, IMAGE_JPEGXS_PIPE, 
CONCAT_PROTOCOL) += fate-jxs-concat-demux
 fate-jxs-concat-demux: CMD = framecrc "-i 
concat:$(TARGET_SAMPLES)/jxs/lena.jxs|$(TARGET_SAMPLES)/jxs/lena.jxs -c:v copy"
 
+# 21-byte crafted VPK: header parses (nb_channels=80) but adpcm_psx open
+# fails. After find_stream_info the layout must stay 80, not 0.
+# ffprobe cannot be used: it aborts on the failed decoder open before
+# printing -show_entries.
+tests/data/vpk-div0.vpk: TAG = GEN
+tests/data/vpk-div0.vpk: | tests/data
+       $(Q)printf 
'\040\113\120\126\126\120\000\370\004\000\073\003\141\071\126\062\066\066\060\070\120'
 > $@
+
+FATE_FFMPEG-$(call ALLYES, VPK_DEMUXER ADPCM_PSX_DECODER FILE_PROTOCOL 
NULL_MUXER) += fate-demux-vpk-div0
+fate-demux-vpk-div0: tests/data/vpk-div0.vpk
+fate-demux-vpk-div0: CMD = ffmpeg -i $(TARGET_PATH)/tests/data/vpk-div0.vpk 
-map 0 -c copy -f null -
+fate-demux-vpk-div0: CMP = grep
+fate-demux-vpk-div0: REF = 80 channels
+
 FATE_SAMPLES_DEMUX += $(FATE_SAMPLES_DEMUX-yes)
 FATE_SAMPLES_FFMPEG += $(FATE_SAMPLES_DEMUX)
 FATE_FFPROBE_DEMUX   += $(FATE_FFPROBE_DEMUX-yes)

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