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Check arrayview is not empty before accessing it

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Bug: webrtc:353764813
No-Try: True
Change-Id: I873f115c13e23d827f3967bc505da4b9d1a70753
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/357580
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42657}
This commit is contained in:
Sergio Garcia Murillo 2024-07-20 09:47:06 +02:00 committed by WebRTC LUCI CQ
parent 4bded9601b
commit 02f375da42
2 changed files with 6 additions and 1 deletions
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3
common_video/h264/h264_bitstream_parser.cc
View File

@ -307,6 +307,9 @@ H264BitstreamParser::Result H264BitstreamParser::ParseNonParameterSetNalu(
}
void H264BitstreamParser::ParseSlice(rtc::ArrayView<const uint8_t> slice) {
if (slice.empty()) {
return;
}
H264::NaluType nalu_type = H264::ParseNaluType(slice[0]);
switch (nalu_type) {
case H264::NaluType::kSps: {

4
common_video/h264/sps_vui_rewriter.cc
View File

@ -238,7 +238,9 @@ rtc::Buffer SpsVuiRewriter::ParseOutgoingBitstreamAndRewrite(
nalu_index.payload_start_offset - nalu_index.start_offset);
rtc::ArrayView<const uint8_t> nalu = buffer.subview(
nalu_index.payload_start_offset, nalu_index.payload_size);
if (nalu.empty()) {
continue;
}
if (H264::ParseNaluType(nalu[0]) == H264::NaluType::kSps) {
// Check if stream uses picture order count type 0, and if so rewrite it
// to enable faster decoding. Streams in that format incur additional