This only supports TTML output; meaning the user can convert WebVTT
into TTML, but not the other way around. This will be useful for
DVB-sub subtitles that would be better supported within TTML.
This only adds text-based output; a follow-up will add MP4 support.
Change-Id: I0944b7df95d7765e55f203fc5e9a644f5c455dd8
This was introduced earlier to indicate FairPlay protection system. But
in fact, it is sufficient to just use the system id for the indication.
- Also updated various parts of the pipeline to support empty PSSH.
- Added an additional FairPlay end to end test using fMP4.
Change-Id: Ica48b7b5235e9a2b5a7f722bcd0fc1ef2073ac13
Use protobuf utilities instead.
packager/base/json_writer comes from Chromium base. We are going
to switch to abseil which does not have a JSON library.
This is unfortunately, at the expense of increased output binary size.
packager binary increases by about 300KB due to:
- Protos cannot be compiled with LITE_RUNTIME any more.
- Additional protobuf library needed to convert between JSON and proto.
Change-Id: I45a497376925b42d147ffcaabcfc2fa4dbdeacc1
Seeing some failures on some platforms when compiled with clang
disabled:
GYP_DEFINES="clang=0" gclient runhooks
Several changes to make it work:
1. Mark packager code with packager_code=1 in GYP definitions.
2. Disable a few checks in non-packager code, which we do not have
direct control: dangling-else, deprecated-declarations,
unused-function
3. Fix the relevant errors in packager code.
4. Revert HAVE_STROPTS_H in curl config which is not available in
all linux distributions.
Fixes#286Fixes#293
Change-Id: I729b41f99403c5ad9487c6cc4a7dc06f6323cef8
- Changed OnMediaEnd() to take (sub)segment ranges.
- Define a structure to pass the ranges.
- This requires muxers to "cache" the segment ranges but in most cases,
they already do it, e.g. 'sidx' for mp4.
Change-Id: I16b974c1f0f54ca658cc6dbe605efff84a3f52eb
Shared libpackager can be built by setting libpackager_type to
shared_library, e.g.
GYP_DEFINES='libpackager_type=shared_library' gclient runhooks
ninja -C out/Debug
will generate libpackager.so in out/Debug/lib directory.
Here is a few other changes to make shared_library builds and
tests pass:
- Add several test parameters to packager.h, which is needed for
testing.
- Create a protoc.gypi from build/protoc.gypi but depending on
protobuf_full_do_not_use instead of protobuf_lite, since we need
protobuf_full_do_not_use for text parsing and generation of media
info proto. Somehow shared_library build does not allow mixed use
of protobuf_full_do_not_use and protobuf_lite.
- Remove the use of LazyInstance in version/version.cc and use static
variable directly. This is because LazyInstance needs AtExitManager
which may not be easy to setup when calling GetVersion.
- Allow skipping testPackageWvmInputWithoutStrippingParameterSetNalus
with flag --shared_library, which is needed as shared_library build
does not support --strip_parameter_set_nalus flag yet.
Fixes#227
Change-Id: Iff05a50baa28134faa7218664c96114cb9e70329
Added a text sample type that can be passed between media handlers.
This will allow text samples to safely be moved between media
handlers before converting to their final format.
Bug: 36138902
Change-Id: Ic4946f774a7d37c43066b9ea46596d5c5f3c05a8
- Also fix the misleading error if an invalid input is provided
The command line app now correctly reports that the file is not
found instead of stream not available.
Change-Id: I8cfccb62d7a50de57766666f126cf061e3df5ded
This CL also removes EncryptionConfig stream data type and merges it
into StreamInfo/SegmentInfo instead.
Change-Id: Idb70ce503e61d3c951225cc78b6b15c084e16dcd
Before this, HLS output did not contain language information.
Now, media playlists are properly tagged with a language in the
master playlist.
b/36134267
Change-Id: I172e946dbedd096a44cb2f917b007cc004756228
- Also sets up the packaging and verify it works.
Some of the changes are temporary to get the integration going.
Change-Id: I0cf6c379d185e157808acabb9ef58ff93d4a39ae
This handler is a multi-in multi-out handler. If more than one input is
provided, there should be one and only one video stream; also, all inputs
should come from the same thread and are synchronized.
There can be multiple chunking handler running in different threads or even
different processes, we use the "consistent chunking algorithm" to make sure
the chunks in different streams are aligned without explicit communcating
with each other - which is not efficient and often difficult.
Consistent Chunking Algorithm:
1. Find the consistent chunkable boundary
Let the timestamps for video frames be (t1, t2, t3, ...). Then a
consistent chunkable boundary is simply the first chunkable boundary after
(tk / N) != (tk-1 / N), where '/' denotes integer division, and N is the
intended chunk duration.
2. Chunk only at the consistent chunkable boundary
This algorithm will make sure the chunks from different video streams are
aligned if they have aligned GoPs. However, this algorithm will only work
for video streams. To be able to chunk non video streams at similar
positions as video streams, ChunkingHandler is designed to accept one video
input and multiple non video inputs, the non video inputs are chunked when
the video input is chunked. If the inputs are synchronized - which is true
if the inputs come from the same demuxer, the video and non video chunks
are aligned.
Change-Id: Id3bad51ab14f311efdb8713b6cd36d36cf9e4639
- Add MSVS related patterns to gitignore.
- Removed encryption_modes.h from media_base.gyp. It doesn't exist.
Change-Id: I44bc86ff7e79daf6f7bc61c21a558937530d8e66
- FOURCC is not a mp4 only concept. It is also used elsewhere.
- RCHECK has been used outside formats/mp4.
Also updated the FOURCC enum names to match the actual fourcc code, e.g.
FOURCC_mdat for "mdat".
Change-Id: I5be02f12695882c0fb41d359305fb8ec01303a06
- Create AesCryptor class as the common base
- AesCryptor::Crypt function will serve as an Encrypt function for
encryptor and a Decrypt function for Decryptor.
Change-Id: Ie91fb14964b5091786705bf510656f40d73af160
KeySource is now an abstract class that is implemented in two
types WidevineKeySource and FixedKeySource. This also updates
fixed key encryption to use v1 PSSH boxes with the common system
ID.
This also updates the --pssh argument. Now it accepts full PSSH
boxes rather than data. Multiple PSSH boxes can be concatenated
together.
Issue #88
Change-Id: I4bd0290f6d8b965f7d118f075c96e0f267d7e831
- Part 1.
- Add packager command line argument "protection_scheme" to specify
protection scheme. Plumb through packager code to enable CBC
encryption/decryption.
- Add scheme type "cbc1" to sinf.
- Refactor AES encryptor and decryptor.
- Need more work in the subsample handling.
Issue #77
Change-Id: I3a9304d89adf5efbfb226b6e805a3077b6cb8c68
Add another overload to fetch by key ID directly, used by WebM.
Changed the one using PSSH data in favor of the entire PSSH box.
This also moves the Widevine proto to media base. Now, the
Widevine key source handles creating the Widevine specific PSSH
data.
Change-Id: I6f4633facad39207809ffbad970635d1f9d70983
This moves pssh parsing to its own class in media base. This type
can be used to parse and generate pssh boxes. This new type also
supports both v0 an v1 boxes.
This also modifies the pssh box definition to only have the |raw_box|
and moves all pssh parsing and handling into mp4 media parser.
A follow-up change will replace the remaining usages of 'raw' pssh
box data with the new type.
Issue #88
Change-Id: Ic2436ecb5df8b3558b81e600dc095b0efd122ab1
On Linux the generated ninja files use path/libbase.a as target name.
In the Mac ninja file the target is just libbase.a.
As we have two libbase.a (base/base.gyp and media/base/media_base.gyp) the linking stage fails to include both libs.
Solve by renaming media_base.gyp's base target to media_base
- Also refactor decryptor management code out of mp4_media_parser.cc
- Move decryptor managment logic to DecryptorSource class to make it
available for webm as well
- Remove data_offset member from DecryptConfig which is not useful
- Add widevine_pssh_data.proto file
Closes#72
Change-Id: I1d32baf4013ebd3382b5372c7433fae5033a260e
For mp4 outputs, a metadata box with version information is added to
moov box.
For mpd outputs, a text comment with version information is added in
the beginning of mpd file.
Issue #60
Change-Id: I783ba370781c0a8f77c910ff1172bad2e7edff75
- Check whether if it can be parsed by libxml2 and check if the root
element is a 'tt' element.
- Added unit tests for determining TTML and WebVTT.
Change-Id: I4fea1881f0ab70970700601d8d7cea32cc04752c
This fixes a circular dependency of media_base depends on filter and
filter depends on media_base.
Also added code to extract sar in WvmMediaParser if it is not yet
extracted when setting extra_data.
Change-Id: I1b5aef2444e4134c9b6663911ac5e5c4c220404a
- Added logic to container parsers to extract pixel width and height.
- If the container doesn't contain the pixel width and height of the
stream and the stream is H264, this parses the SPS to get the
sar_width and sar_height.
- If extracted sar_width and sar_height are 0s then they imply 1s.
- Add hb2_v_frag.mp4 for test media. This does not have a
'pasp' box and has sar_width = 8 sar_height = 9.
Change-Id: I4a06ce95582547bec19adb7905e7612c5a1f359e
Also rename mpd/base/bandwidth_estimator_test.cc to
bandwidth_estimator_unittest.cc for consistency.
And remove mpd/base/simple_vod_mpd_notifier.* as they are not used
anywhere.
Change-Id: Iaeb096aef9259837a4eb356c18d5ca15f08d2376
Jacob Trimble
KongQun Yang
Haoming Chen
Rintaro Kuroiwa
Aaron Vaage
Joey Parrish
Yohann Connell
Bei Li
Anders Hasselqvist
Ramji Chandramouli