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fix(media-proxy): reject AVIF tracks with zero timescales (#1579)

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This commit is contained in:
Hampus
2026-08-13 14:59:08 +02:00
committed by GitHub
parent dba1ba1112
commit 0c291a01da
1 changed files with 6 additions and 3 deletions
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fluxer_media_proxy/src/vips_shim.c
+6 -3
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@@ -2346,16 +2346,18 @@ static int cb_collect_mdhd(const uint8_t *payload, size_t len, void *user) {
trak_info *t = (trak_info *)user;
if (len < 1) return 0;
uint8_t version = payload[0];
uint32_t timescale;
if (version == 0) {
if (len < 16) return 0;
t->timescale = bmff_read_u32(payload + 12);
timescale = bmff_read_u32(payload + 12);
} else if (version == 1) {
if (len < 24) return 0;
t->timescale = bmff_read_u32(payload + 20);
timescale = bmff_read_u32(payload + 20);
} else {
return 0;
}
if (t->timescale > 0) t->have_mdhd = 1;
t->timescale = timescale;
t->have_mdhd = timescale > 0;
return 0;
}
@@ -2452,6 +2454,7 @@ static int parse_isobmff_track_delays(const void *buf, size_t len,
if (total_samples == 0) { free(list.traks); return -1; }
uint32_t timescale = picked->timescale;
if (timescale == 0) { free(list.traks); return -1; }
int *delays = (int *)malloc((size_t)total_samples * sizeof(int));
if (delays == NULL) { free(list.traks); return -1; }