If depth is 0, then the component is invalid/unset.

Signed-off-by: James Almer <jamr...@gmail.com>
---
 libavutil/pixdesc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index d73c3f0d58..4d61e32a1e 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -45,6 +45,9 @@ void av_read_image_line2(void *dst,
     uint16_t *dst16 = dst;
     uint32_t *dst32 = dst;
 
+    if (!depth)
+        return;
+
     if (flags & AV_PIX_FMT_FLAG_BITSTREAM) {
         if (depth == 10) {
             // Assume all channels are packed into a 32bit value
@@ -124,6 +127,9 @@ void av_write_image_line2(const void *src,
     const uint32_t *src32 = src;
     const uint16_t *src16 = src;
 
+    if (!depth)
+        return;
+
     if (flags & AV_PIX_FMT_FLAG_BITSTREAM) {
         if (depth == 10) {
             // Assume all channels are packed into a 32bit value
-- 
2.47.0

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