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Register filter loop parameters' start position in VP9 frame header.

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This is needed in order to create corruptions (by altering the filter loop params) to test the corruption detection algorithm.

Bug: webrtc:358039777
Change-Id: Ib26e9c0187b79c13b9862898625742def4091b91
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/360780
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Emil Vardar (xWF) <vardar@google.com>
Cr-Commit-Position: refs/heads/main@{#42890}
This commit is contained in:
Emil Vardar 2024-08-29 12:09:50 +00:00 committed by WebRTC LUCI CQ
parent 427b712a49
commit 2c637aa16f
3 changed files with 6 additions and 0 deletions
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2
modules/video_coding/utility/vp9_uncompressed_header_parser.cc
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@ -488,6 +488,8 @@ void Parse(BitstreamReader& br,
// Frame context index.
frame_info->frame_context_idx = br.ReadBits(2);
frame_info->loop_filter_params_offset_bits =
total_buffer_size_bits - br.RemainingBitCount();
Vp9ReadLoopfilter(br);
// Read base QP.

3
modules/video_coding/utility/vp9_uncompressed_header_parser.h
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@ -106,6 +106,9 @@ struct Vp9UncompressedHeader {
size_t tile_cols_log2 = 0; // tile_cols = 1 << tile_cols_log2
size_t tile_rows_log2 = 0; // tile_rows = 1 << tile_rows_log2
absl::optional<size_t> render_size_offset_bits;
// Number of bits from the start of the frame header to where the loop filter
// parameters are located.
absl::optional<size_t> loop_filter_params_offset_bits;
Vp9InterpolationFilter interpolation_filter =
Vp9InterpolationFilter::kEightTap;
bool allow_high_precision_mv = false;

1
modules/video_coding/utility/vp9_uncompressed_header_parser_unittest.cc
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@ -56,6 +56,7 @@ TEST(Vp9UncompressedHeaderParserTest, FrameWithSegmentation) {
EXPECT_EQ(frame_info->tile_cols_log2, 0u);
EXPECT_EQ(frame_info->tile_rows_log2, 0u);
EXPECT_EQ(frame_info->render_size_offset_bits, 64u);
EXPECT_EQ(frame_info->loop_filter_params_offset_bits, 100u);
EXPECT_EQ(frame_info->compressed_header_size, 23u);
EXPECT_EQ(frame_info->uncompressed_header_size, 37u);