There are a lot of changes in this first phase, because there was a
lot of infrastructure required to get some meaningful amount of
porting done. Future PRs should be simpler.
<b>Summary of changes:</b><details>
- Remove old deps:
- boringssl (replaced with mbedtls, lighter, easier to build)
- gflags (replaced with absl::flags)
- Chromium build tools
- New deps to replace parts of Chromium base:
- abseil-cpp
- glog
- nlohmann::json (for tests only)
- Submodules, updates, and CMake build rules for third-party
libraries:
- curl
- gmock/gtest
- Ported internal libraries and their tests by removing Chromium deps
and adding CMake build rules:
- file (now using C++17 filesystem APIs)
- license_notice
- status
- version
- Test improvements
- Removed file tests that can never be re-enabled
- Re-enabled all other disabled file tests
- Debug JSON values when HTTP tests fail
- Fixed chunked-encoding issues in HTTP tests
- Updated and refactored Dockerfiles testing
- All docker files working, with OS versions updated to meet the
new tool requirements
- Local docker builds no longer write files to your working
directory as root
- Local docker builds can now be run in parallel without clobbering
each others' build outputs
- DEBUG=1 can drop you into an interactive shell when a docker
build fails
- Updated and heavily refactored workflows and Dockerfiles
- All docker files now tested in parallel on GitHub, speeding up CI
- All common workflow components broken out and using workflow_call
instead of custom actions
- Self-hosted runners now optional, to make testing easier on forks
- CMake porting works-in-process can now be fully tested on GitHub
- Building ported libraries and passing ported tests on all three
platforms!
- CI hacks for macOS removed, now testing on macos-latest!
- Python2 no longer required! (Only Python3)
- Using strict build flags, treating all warnings as errors.
</details>
<b>Required to build:</b>
- CMake >= 3.16
- Python 3
- A compiler supporting C++ >= 17
- g++ >= 9 if using GCC (Clang also fine)
- MSVC for Windows
<b>Still needs work:</b><details>
- Moving other dependencies into submodules (if we keep them):
- apple_apsl
- icu
- libevent
- libpng
- libwebm
- libxml
- modp_b64
- protobuf
- zlib
- Port remaining internal libraries:
- app
- hls
- media/base
- media/chunking
- media/codecs
- media/crypto
- media/demuxer
- media/event
- media/formats/dvb
- media/formats/mp2t
- media/formats/mp4
- media/formats/packed_audio
- media/formats/ttml
- media/formats/webm
- media/formats/webvtt
- media/formats/wvm
- media/origin
- media/public
- media/replicator
- media/trick_play
- mpd
- Port main application
- Add logging flags in absl and connect them to glog (which expects
gflags)
- Port pssh-box.py
- Port main test targets (packager_test.py and packager_app.py)
- Updating all requirement and build documentation
- Remove any remaining refs to gclient, depot_tools, ninja
- Update and complete release workflows using release-please
</details>
Issue #346 (Switch to abseil)
Issue #1047 (New build system)
In one of the low-latency changes, a change was made to HttpFile that
caused responses to HTTP POST requests to go missing. This resulted
in failures to fetch encryption keys.
The breaking change was recommended by me in a PR review, and was not
caught by any unit tests. New tests would be ideal, but I chose to
fix the bug first, rather than leave the repo broken.
This bug was brought to my attention in google/shaka-streamer#87 and
has not appeared in any release versions.
Change-Id: I9eca73d187a8a30f16c4a920fcdb7b4872253858
# 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
- Do not write the HTTP PUT response to cache which can potentially overflow the cache buffer as it is not consumed.
- VLOG(1) instead of LOG(ERROR) on HttpFile::Size() as it can be called during normal code execution.
- Add a command line flag `--user_agent` to allow users to specify their custom user agent string.
Fixes#939.
Issue #149
Co-authored-by: Andreas Motl <andreas.motl@elmyra.de>
Co-authored-by: Rintaro Kuroiwa <rkuroiwa@google.com>
Co-authored-by: Ole Andre Birkedal <o.birkedal@sportradar.com>
Joey Parrish
Joey Parrish
Caitlin O'Callaghan
Daniel Cantarín
Jacob Trimble
Ole Andre Birkedal