The `__FILE__` macro does not always get you an absolute path, so our
assumptions about it in test_data_util.cc were flawed.
If `foo.c` references `__FILE__`, something like `gcc -c foo.c`, will
define `__FILE__` as `"foo.c"`. If you use `gcc -c /path/to/foo.c`, then
`__FILE__` will be `"/path/to/foo.c"`.
The Ninja generator for CMake only generates absolute paths for source
files in certain CMake versions. (Exact range unknown.) Rather than
require newer CMake versions and depend on CMake's Ninja generator
maintaining the latest behavior forever, set the macro TEST_DATA_DIR to
point to the test data folder. This is consistent and never depends on
unspecified behavior.
This change will allow the use of the Ninja generator with older
versions of CMake, as found in most of our Docker builds.
- Update protobuf to v23.4, to fix the cstdint error on Arch Linux, and
make some related changes:
- Silence additional compiler warnings for the new protobuf
- Update absl to 20230125.3, to support the protobuf update, and make
some related changes:
- Silence additional compiler warnings for the new protobuf
- Replace GOOGLE_CHECK_OK with ABSL_CHECK_OK
- Replace GUARDED_BY with ABSL_GUARDED_BY
- Update other instances of cstdint missing in our own code
- Always pull the latest docker images, to avoid stale results when your
workstation has pulled an older image at the same label
Rebasing #1148 on top of current cmake branch
Related to #1047
---------
Co-authored-by: Bartek Zdanowski <bartek.zdanowski@gmail.com>
Co-authored-by: Joey Parrish <joeyparrish@google.com>
All HTTP-based tests now use an embedded test server instead of
httpbin.org, which makes them much faster and more reliable.
These more reliable tests also exposed some issues that began recently
with PR #1201. HttpFile's Flush() semantics were different than those
documented for files in general. Flush() used to close the file for
uploading, so that no further writes were allowed, but the documentation
stated that it would only flush data to its destination. PR #1201
brought HttpFile's Flush() in line with the docs, but gave us no way to
terminate a chunked upload.
This adds a new method to File called CloseForWriting(), which
terminates a chunked upload for HttpFile. The only other implementation
that does anything is UdpFile, which uses the socket library function
shutdown() to terminate writes while allowing reads.
This also tweaks HttpFile::CloseWithStatus() so that it will not
generate an error if the file is closed before the HTTP response is
written to the download cache.
This modifies the test HttpFileTest.MultipleWrites so that the file is
Flushed after each chunk. This adds test coverage for the changes
introduced in PR #1201.
Fixes#1224 (missing test coverage for HttpFile::Flush)
This adds Mongoose as a third-party library, and builds on top of that
an embedded HTTP server for our unit tests.
We are using a fork of Mongoose pending the merging of this PR:
https://github.com/cesanta/mongoose/pull/2301
The embedded web server will make our HTTP-based tests independent of
httpbin.org, which will make them quick and reliable.
Rebasing #1155 and applying some fixes. Had to comment out the
`mpd_notify_muxer_listener_unittest` because it depends on
`MockMpdNotifier` from `mpd/base` which has not been ported yet. Can
bring this test back once that has been ported.
Related to #1047
---------
Co-authored-by: Carlos Bentzen <carlos.bentzen@bitmovin.com>
Co-authored-by: Joey Parrish <joeyparrish@google.com>
This reverts commit 2e349845c6 from PR
#1203.
We are moving away from httpbin.org for testing, and this revert will
make subsequent changes to the tests easier to read.
This removes all chromium dependencies from media/base/ and completes
the build system in CMake.
The ClosureThread class and its classes were removed, as they were
specific to chromium base. ClosureThread has been replaced by
std::thread.
The byte-swapping utilities in network_util.cc have been removed and
replaced with absl.
generate_unique_temp_path() was split out of file_unittest.cc into
file_test_util.cc, where other test suites could make use of it.
WARN_UNUSED_RESULT was replaced with the C++ standard attribute
[[nodiscard]].
The base::Clock interface was replaced with a typedef for a function
pointer that returns the current time.
This re-enables the tests in http_key_fetcher_unittest.cc by using
httpbin.org.
Issue #1047 (CMake porting)
Issue #346 (absl porting)
This does not depend on absl, which frees macros.h from any library deps
that would make the CMake dependency tree more complicated. This also
fixes build errors in some environments.
mbedtls works very differently from BoringSSL, and many changes had to
be made in the details of AES decryption to accomodate this.
Beyond the basic changes required for mbedtls, part of the CTS padding
implementation had to be rewritten. I believe this is because of an
assumption that held for BoringSSL, but not for mbedtls. I was unable to
determine what it was, so I rewrote the CTS decryption using reference
materials. After this, tests passed.
The deterministc PRNG I used with mbedtls in the RSA tests differs
somewhat from the old one, so the expected vectors had to be
regenerated. The old determinstic tests were also disabled, and are now
re-enabled.
Since cryptography is sensitive code, and because there were far more
changes needed here than just updating some headers and utility function
calls, this has been split into its own PR for separate review from the
rest of the media/base porting work.
Issue #1047 (CMake porting)
Issue #346 (absl porting)
Rewrite test_data_util.cc to locate files relative to the source file
itself, rather than using a service from chromium `base::`.
Issue #1047 (CMake porting)
Issue #346 (absl porting)
For some reason, the status util unittest was in media/base/ instead of
status/
The broken headers in the status library were not obviously broken until
media/base/ porting started, and they were used for the first time.
Issue #1047 (CMake porting)
Note:
* An xHE-AAC capable encoder will auto adjust the user-specified SAP/RAP
value to the allowed grid where SAP/RAPs can occur.
e.g.: `-rapInterval 5000` (5s) may result in actual SAPs/RAPs every
4.984s.
* To ensure SAP/RAP starts a new segment, Shaka needs to executed with a
"--segment_duration" is less than or equal to that adjusted value.
* If every SAP/RAP should trigger a new segment, just set the segment
length to a very low value e.g.: `--segment_duration 0.1`
Note:
* An xHE-AAC capable encoder will auto adjust the user-specified SAP/RAP
value to the allowed grid where SAP/RAPs can occur.
e.g.: `-rapInterval 5000` (5s) may result in actual SAPs/RAPs every
4.984s.
* To ensure SAP/RAP starts a new segment, Shaka needs to executed with a
"--segment_duration" is less than or equal to that adjusted value.
* If every SAP/RAP should trigger a new segment, just set the segment
length to a very low value e.g.: `--segment_duration 0.1`
In many places, we used std::numeric_limits without including the
proper header. This would build on some Linux distributions, but not
others.
This adds the missing includes, fixing the build on Fedora, among
other distros.
Change-Id: I63e9e37e5973fe23bbdf9868552db51062b1dae4
## The issue
- With LL-DASH mode enabled, the gap size warning was hit and printed to the console every time a new segment was registered to the manifest.
- This occurred because the first chunk's size and duration were being stored for each segment, rather than the full segment size and duration. Note, only the first chunk's metrics are known at first because in low latency mode, the segment is registered to the manifest before it is finished being processed and written.
- Because of this, the gap size check was comparing the end time of the first chunk in the previous segment to the beginning time of the current segment, causing the check to fail every time.
## The Fix
- Update a low latency segment's duration and size once the segment file has been fully written.
- The full segment size and duration will be used to update the bandwidth estimator and the segment info list.
- Updating the segment info list to hold the full duration is necessary for satisfying [the gap size check found in Represenation.cc](https://github.com/google/shaka-packager/blob/master/packager/mpd/base/representation.cc#L391).
- NOTE: bandwidth estimation is currently only used in HLS
# LL-DASH Support
These changes add support for LL-DASH streaming.
**NOTE:** LL-HLS support is still in progress, but it's coming. :)
## Testing
`./chunking_unittest --gtest_filter="ChunkingHandlerTest.LowLatencyDash"`
`./media_event_unittest --gtest_filter="MpdNotifyMuxerListenerTest.LowLatencyDash"`
`./mpd_unittest --gtest_filter="PeriodTest.LowLatencyDashMpdGetXml"`
`./mpd_unittest --gtest_filter="SimpleMpdNotifierTest.NotifyAvailabilityTimeOffset"`
`./mpd_unittest --gtest_filter="SimpleMpdNotifierTest.NotifySegmentDuration"`
`./mpd_unittest --gtest_filter="LowLatencySegmentTest.LowLatencySegmentTemplate"`
Note, packager_test must be run from the main project directory
`./out/Release/packager_test --gtest_filter="PackagerTest.LowLatencyDashEnabledAndUtcTimingNotSet"`
`./out/Release/packager_test --gtest_filter="PackagerTest.LowLatencyDashEnabledAndUtcTimingNotSet"`
This converts all time parameters to signed, finishing a cleanup that
was started in 2018 in b4256bf0. This changes the type of:
- timestamps
- PTS specifically
- timestamp offsets
- timescales
- durations
This excludes:
- MP4 box definitions
- DTS specifically
This is meant to address signed/unsigned conversion issues on arm64
that caused some test cases to fail.
Change-Id: Ic752a20cbc6e31fea6bc0894d1771833171e7cbe
This brings our default build config more in line with what is
necessary for some platforms anyway: using the system-installed
toolchain and sysroot to build everything.
We will no longer fetch source or binaries for any specific build
tools, such as libc++, clang, gold, binutils, or valgrind.
The main part of this change is the changing of default gyp settings
in gyp_packager.py. For this, a bug in gyp_packager.py had to be
fixed, in which similar GYP_DEFINE key names (such as clang and
host_clang) would conflict, causing some defaults not to be installed
properly.
In order to enable clang=0 by default, some changes had to be made in
common.gypi:
- compiler macros added to fix a compatibility issue between
Chromium's base/mac/ folder and the actual OSX SDK
- replaced clang_warning_flags variables with standard cflags
settings, plus xcode_settings for OSX
- turned off warnings-as-errors for non-shaka code, rather than
allow-listing specific warning types, since we can't actually fix
those warnings on any platform
- disabled two specific warnings in shaka code, both of which are
caused by headers from our non-shaka dependencies
Also, one warning (missing "override" keyword) has been fixed in
vod_media_info_dump_muxer_listener.h.
Although these changes were done to make building simpler on a wider
array of platforms (arm64, for example), it seems to make the build a
bit faster, too. For me, at least, on my main Linux workstation:
- "gclient sync" now runs 20-30% faster
- "ninja -C out/Release" now runs 5-13% faster
The following environment variables are no longer required:
- DEPOT_TOOLS_WIN_TOOLCHAIN
- MACOSX_DEPLOYMENT_TARGET
Documentation, Dockerfiles, and GitHub Actions workflows have been
updated to reflect this.
The following GYP_DEFINES are no longer required for anyone:
- clang=0
- host_clang=0
- clang_xcode=1
- use_allocator=none
- use_experimental_allocator_shim=0
Documentation, Dockerfiles, and GitHub Actions workflows have been
updated to reflect this.
The following repos are no longer dependencies in gclient:
- binutils
- clang
- gold
- libc++
- libc++abi
- valgrind
The following gclient hooks have been removed:
- clang
- mac_toolchain
- sysroot
Change-Id: Ie94ccbeec722ab73c291cb7df897d20761a09a70
Because a StreamState object contains a unique_ptr, it is not
copyable. A vector of StreamStates, therefore, causes a compile error
on resize or push_back, both of which invoke the copy constructor.
I don't know why MSVS complains, but clang does not.
To fix this, I'm changing vector<StreamState> into deque<StreamState>.
At this point static_library builds are working in MSVS 2019.
shared_library builds are still not working.
Issue #867 (MSVS 2019)
Issue #336 (progress toward replacing Travis & Appveyor with GitHub
Actions, which uses MSVS 2019)
b/190743862 (internal; tracking replacement of Travis)
Change-Id: Iaa9d5fc357102d15eac96c29ebeee7c7236e976b
It is not working correctly in gcc 4.8 or earlier, which is still
popular (bundled by default in CentOS 7).
Issue #865, #929.
Change-Id: I136446a70831bd0237cd29646dd349fe7558176b
Legacy players, e.g. older versions of ExoPlayer, do not handle default webvtt text alignment correctly. Need to specify `align:center` explicitly cues without text alignment for backwards compatibility.
Fixes#925.
It is not working correctly in gcc 4.8 or earlier, which is still
popular (e.g. bundled by default in CentOS 7).
Fixes#865, #929.
Change-Id: I55a42428dbd2a12fc2c3b1e6a49fdd662a295dca
Joey Parrish
Cosmin Stejerean
Joey Parrish
Carlos Bentzen
Marcus Spangenberg
Bartek Zdanowski
Geoff Jukes
Vishal Shah
Caitlin O'Callaghan
nvincen
KongQun Yang
Samidh
Mattias Wadman
Daniel Cantarín
Jacob Trimble
Sergio Garcia Murillo