https://tools.ietf.org/html/rfc8216#section-4.1
The peak segment bit rate of a Media Playlist is the largest bit rate
of any contiguous set of segments whose total duration is between 0.5
and 1.5 times the target duration.
Fixes#498.
Change-Id: I1f28972b9cc5977735e47906bdcd88ba3942db5a
kFrameSizeCodeTable rows are ordered by 32kHz, 44.1kHz and 48kHz,
which is the reverse of fscod (48kHz, 44.1kHz and 32kHz).
Also updated unittests.
Fixes#487.
Change-Id: Icb0afb8bb895afde0028eee05b403bc85bf7b538
Dump the first 512 bytes of the buffer if container is unknown. This
can help us find out what the actual container is; and fix the
container detection bug if there is.
Closes#505.
Change-Id: I4a8fe5954d0419ef2ccbb9067ec2e9ffe1da417e
Created SubsampleGenerator to generate subsamples.
This is part of the EncryptionHandler clean up to make it more modular
and testable.
Change-Id: I6f4076b057027c72335beb3cbf1965341eb18031
Created EncryptorFactory to set up the encryptors.
This is part of the EncryptionHandler clean up to make it more modular
and testable.
Change-Id: I839bcd8a84fa873396360d67afb540fef1345673
Only Marlin Adaptive Streaming Specification – Simple Profile is
supported.
Two additional updates:
- Remove FairPlay ContentProtection element from DASH mpd as FairPlay
does not define a signaling in DASH.
- Updated end to end test to include all DRMs we support.
Closes#381.
Change-Id: Id12269b471ea34983b782cbd92f687332292ef59
Implemented according to bitstream spec at
https://aomediacodec.github.io/av1-spec/.
It will be used to do AV1 subsample encryption later.
Issue #453.
Change-Id: I84d8a2a780d95f2c9f430ee598838b97474cc0af
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
Note that TTML in ISO-BMFF is not supported yet.
Also updated packager_test.py:
- Added a test using TTML passthrough.
- Computed output extension from input extension unless output_format
is specified.
Fixes#478.
Change-Id: Ia917fc4ed3c326782791ed67601fba02ea28b11d
The time for the previous segment was used when generating the segment
name. This resulted in the first segment being overwritten and
mismatching manifest and media files. It led to playback problems.
Issue #472.
Change-Id: Ia8130ce261585e1a2ede83b26de3e32508de087f
The VP9 level is computed when the container is missing a codec config
or if the level is missing from the codec config.
This fixes VP9 in ISO-BMFF files generated by FFmpeg v4.0.2 or earlier
which does not have level set in the codec config.
Fixes#469.
Change-Id: I685bfd48be16ee6b2209da1c3173f7d6bb02b36a
Implemented per AV1 Codec ISO Media File Format Binding at
https://aomediacodec.github.io/av1-isobmff/
And AOM AV1 codec mapping in Matroska/WebM at
https://github.com/Matroska-Org/matroska-specification/blob/av1-mappin/codec/av1.md
Note that AV1 specific boxes are not supported in this CL, i.e.
AV1 Forward Key Frame sample group entry 'av1f', AV1 Multi-Frame
sample group entry 'av1m' etc are not supported. These boxes are optional.
We will add support later if they are useful to the clients / players.
Encryption is not supported yet.
Issue #453.
Change-Id: I630432d0a9bf82d263ffaf40e57f67fc65eee902
We used to skip all the remaining bytes if the size is less than
|crypt_byte_block| blocks.
This interpretation is incorrect. We should only leave the last partial
16-byte block un-encrypted.
Change-Id: I4f09600efa52e2fdf4d0b661dfc418dcb675f9f6
Renamed "FakeMediaHandler" to "CachingMediaHandler" so that it
is easier to differentiate from "FakeInputMediaHandler". It will
be used as the single method to verify media handler output.
This is part of an effort to find a cleaner way to test media handlers.
Change-Id: Ie391fe23ee3389d13b012ae3093744a453106c19
Negative duration is not allowed, so set the duration of that sample to
an arbitrary small value in case it is needed to decode future samples.
Issue #451.
Change-Id: I9250d71d163f769ea2657d56e108b6dbd583de67
Keep bundled binutil scripts but not downloading actual binaries by default.
Automatic downloading of binutils has been causing problems for some users:
see #164, #412, #440.
Using bundled binutils helps reduce linking time, but packager codebase is
relatively small, so the gain is not significant.
Local testing shows that the full build time increases from 1m42s to 1m50s, i.e.
an increase of about 8s, or ~8%.
User can still enable the usage of bundled binutils by running
'python src/packager/third_party/binutils/download.py' and set
'linux_use_bundled_binutils' and 'linux_use_bundled_gold' to 1 in GYP_DEFINES.
Change-Id: I7ecae2333861f41054f957d0a6081dae948167bd
Note that STYLE and REGION are not supported in mp4 container due to
spec limitation as 14496-30:2014 does not specify a way to signal
styles/regions inside mp4.
Closes#344.
Change-Id: I05c14df916f7b2c7ca4364ee9407e0eda4dc7a3f
- Also fixed compilations in Alpine Linux and other flavors of Linux.
- Added container versions in docker files to always use a verified
version.
Closes#164.
Change-Id: I949a8709e4d70c49129c9c2e8608dd78193d964c
Configurable under --enable_legacy_widevine_hls_signaling, off by
default.
When it is enabled, do not fail if provider or content_id are missing,
but log a warning instead.
Bug: 112268769.
Change-Id: I2531aa7474d2818700b90fa0679b49891bb935ef
--io_block_size determines the buffer size for each read/write in
ThreadedIO.
A big io_block_size does not help much as long as --io_cache_size
is big enough.
Instead, it may cause problems. For example, Linux pipes block until
reading io_block_size number of bytes, which causes a large delay
when reading audio streams.
Change-Id: I5bdd3d61388579c7e8647cdab3152135a40a752b
In some ISO-BMFF files, there is an initial non-zero composition offset,
but there is no EditList present.
This is against ISO-BMFF spec recommentation [1] and we believe in most
cases it is just missing the EditList.
[1] 14496-12:2015 8.6.6.1
It is recommended that such an edit be used to establish a presentation
time of 0 for the first presented sample, when composition offsets are
used.
Issue: #112.
Change-Id: I178d5ec9d8c294c9f70aac4f4dd6254c824e2255
Previously it is possible that the same file path is generated when
the function is called consecutively in the same thread.
The problem can be re-produced in Windows. Does not seem to be
re-producible in Linux and Mac.
Fixes#448, #449.
Change-Id: Ia0163492e3494eba00f56f4d356aa1010b9660cc
- Also make it explicit that MemoryFile does not support opening an
already open file. An error will be returned when trying to open an
already open file. Previously the code may crash with memory problems.
- Also updated packager_test to use different test directories for
different tests.
Fixes Appveyor crash due to memory corruption: #449.
Appveyor may still fail but will contain a meaningful error logging.
Change-Id: Ibc9346ef7f301e416a4a09f120bca56504c939d8
KongQun Yang
Denis Akhmetzyanov
Aaron Vaage