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ladybird/Tests/LibMedia/TestVP9Decode.cpp

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LibVideo: Add test to ensure that a VP9 WebM file will decode This will test decoding of one second of video, to ensure that it can fully decode the entire file.
2022-09-25 20:24:07 -03:00
/*
* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
LibMedia: Remove the home-grown VP9 decoder
2024-06-21 01:11:08 -03:00
#include <LibMedia/FFmpeg/FFmpegVideoDecoder.h>
LibVideo: Add test to ensure that a VP9 WebM file will decode This will test decoding of one second of video, to ensure that it can fully decode the entire file.
2022-09-25 20:24:07 -03:00
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
#include "TestMediaCommon.h"
LibVideo: Read Matroska lazily so that large files can start quickly The Demuxer class was changed to return errors for more functions so that all of the underlying reading can be done lazily. Other than that, the demuxer interface is unchanged, and only the underlying reader was modified. The MatroskaDocument class is no more, and MatroskaReader's getter functions replace it. Every MatroskaReader getter beyond the Segment element's position is parsed lazily from the file as needed. This means that all getter functions can return DecoderErrors which must be handled by callers.
2022-11-11 20:14:27 -03:00
LibMedia: Calculate Matroska block timestamps for their actual tracks Instead of using a single track entry for all blocks in the file, use a lookup to get the info needed to calculate the timestamp for the specific track a block belongs to. No change in behavior for SampleIterator, since that only returns blocks from the track that was passed. This will be useful for MSE, since it demuxes all tracks at once.
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static NonnullOwnPtr<Media::VideoDecoder> make_decoder(Media::Matroska::TrackEntry const& track)
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
{
LibMedia: Calculate Matroska block timestamps for their actual tracks Instead of using a single track entry for all blocks in the file, use a lookup to get the info needed to calculate the timestamp for the specific track a block belongs to. No change in behavior for SampleIterator, since that only returns blocks from the track that was passed. This will be useful for MSE, since it demuxes all tracks at once.
2026-03-26 16:32:26 -03:00
return MUST(Media::FFmpeg::FFmpegVideoDecoder::try_create(Media::CodecID::VP9, track.codec_private_data()));
LibVideo: Allow the VP9 decoder to decode ultra high resolution video Previously, some integer overflows and truncations were causing parsing errors for 4K videos, with those fixed it can fully decode 8K video. This adds a test to ensure that 4K video will continue to be decoded. Note: There seems to be unexpectedly high memory usage while decoding them, causing 8K video to require more than a gigabyte of RAM. (!!!)
2022-10-01 19:28:37 -03:00
}
LibVideo: Add test to ensure that a VP9 WebM file will decode This will test decoding of one second of video, to ensure that it can fully decode the entire file.
2022-09-25 20:24:07 -03:00
LibVideo: Allow the VP9 decoder to decode ultra high resolution video Previously, some integer overflows and truncations were causing parsing errors for 4K videos, with those fixed it can fully decode 8K video. This adds a test to ensure that 4K video will continue to be decoded. Note: There seems to be unexpectedly high memory usage while decoding them, causing 8K video to require more than a gigabyte of RAM. (!!!)
2022-10-01 19:28:37 -03:00
TEST_CASE(webm_in_vp9)
{
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
decode_video("./vp9_in_webm.webm"sv, 25, make_decoder);
LibVideo: Allow the VP9 decoder to decode ultra high resolution video Previously, some integer overflows and truncations were causing parsing errors for 4K videos, with those fixed it can fully decode 8K video. This adds a test to ensure that 4K video will continue to be decoded. Note: There seems to be unexpectedly high memory usage while decoding them, causing 8K video to require more than a gigabyte of RAM. (!!!)
2022-10-01 19:28:37 -03:00
}
LibVideo/VP9: Revert framebuffer size reduction to allow OOB blocks The framebuffer size was reduced in f2c0cee, but this caused some niche block layouts to write outside of the frame. This could be fixed by adding checks to see if a block being predicted/ reconstructed is within the frame, but the branches introduced by that reduce performance slightly. Therefore, it's better to keep the framebuffer sized according to the decoded frame size in 8x8 blocks so that any block can be decoded without bounds checking. A test was added to ensure that this continues to work.
2023-05-01 10:48:51 -03:00
TEST_CASE(vp9_oob_blocks)
{
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
decode_video("./vp9_oob_blocks.webm"sv, 240, make_decoder);
LibVideo/VP9: Revert framebuffer size reduction to allow OOB blocks The framebuffer size was reduced in f2c0cee, but this caused some niche block layouts to write outside of the frame. This could be fixed by adding checks to see if a block being predicted/ reconstructed is within the frame, but the branches introduced by that reduce performance slightly. Therefore, it's better to keep the framebuffer sized according to the decoded frame size in 8x8 blocks so that any block can be decoded without bounds checking. A test was added to ensure that this continues to work.
2023-05-01 10:48:51 -03:00
}
LibVideo: Allow the VP9 decoder to decode ultra high resolution video Previously, some integer overflows and truncations were causing parsing errors for 4K videos, with those fixed it can fully decode 8K video. This adds a test to ensure that 4K video will continue to be decoded. Note: There seems to be unexpectedly high memory usage while decoding them, causing 8K video to require more than a gigabyte of RAM. (!!!)
2022-10-01 19:28:37 -03:00
BENCHMARK_CASE(vp9_4k)
{
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
decode_video("./vp9_4k.webm"sv, 2, make_decoder);
LibVideo: Add test to ensure that a VP9 WebM file will decode This will test decoding of one second of video, to ensure that it can fully decode the entire file.
2022-09-25 20:24:07 -03:00
}
Tests/LibVideo: Test to ensure that VP9 reference vector clamping works The test file is a short clip from Big Buck Bunny, so a license file was added to the directory to attribute it.
2023-01-30 20:22:41 -03:00
BENCHMARK_CASE(vp9_clamp_reference_mvs)
{
Tests/LibMedia: Move video decode testing function to a header This will be useful for other video codecs, but putting all codecs in one file will be a little messy.
2024-06-20 01:04:25 -03:00
decode_video("./vp9_clamp_reference_mvs.webm"sv, 92, make_decoder);
Tests/LibVideo: Test to ensure that VP9 reference vector clamping works The test file is a short clip from Big Buck Bunny, so a license file was added to the directory to attribute it.
2023-01-30 20:22:41 -03:00
}
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