ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Mon Jun 17 11:20:57 
2024 -0300| [4e608e90eb9a05e92d7f2ae92065e2898b0fbe0e] | committer: James Almer

avformat/evc: fix writing reserved bits

They are all zeroes, not ones.

Signed-off-by: James Almer <jamr...@gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4e608e90eb9a05e92d7f2ae92065e2898b0fbe0e
---

 libavformat/evc.c           | 6 +++---
 tests/ref/lavf-fate/evc.mp4 | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavformat/evc.c b/libavformat/evc.c
index 928ae1ff65..6a63630b0c 100644
--- a/libavformat/evc.c
+++ b/libavformat/evc.c
@@ -257,10 +257,10 @@ static int evcc_write(AVIOContext *pb, 
EVCDecoderConfigurationRecord *evcc)
     avio_wb16(pb, evcc->pic_height_in_luma_samples);
 
     /*
-     * bit(6) reserved = '111111'b;
-     * unsigned int(2) chromaFormat;
+     * unsigned int(6) reserved = '000000'b;
+     * unsigned int(2) lengthSizeMinusOne;
      */
-    avio_w8(pb, evcc->lengthSizeMinusOne | 0xfc);
+    avio_w8(pb, evcc->lengthSizeMinusOne & 0x3);
 
     /* unsigned int(8) numOfArrays; */
     avio_w8(pb, evcc->num_of_arrays);
diff --git a/tests/ref/lavf-fate/evc.mp4 b/tests/ref/lavf-fate/evc.mp4
index 4b410b84f3..6ef7af4ddc 100644
--- a/tests/ref/lavf-fate/evc.mp4
+++ b/tests/ref/lavf-fate/evc.mp4
@@ -1,3 +1,3 @@
-885fb330b20632b88ef9d7fb03dfa2e9 *tests/data/lavf-fate/lavf.evc.mp4
+bebb66fc3e13ece081d1aa96802e3c1f *tests/data/lavf-fate/lavf.evc.mp4
 37386 tests/data/lavf-fate/lavf.evc.mp4
 tests/data/lavf-fate/lavf.evc.mp4 CRC=0x48063f85

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