- Tracks other than video are protected using whole-block full-sample
encryption as specified in ISO/IEC 23001-7:2016(E) 9.7, which is
equivalent to a pattern of 1:0. This is different to the non pattern
encryption counterparts.
- Also updated the code to allow the existence of other protection
schemes in the original content, which will simply be ignored.
- The internal cryptor used by AesPatternCryptor should not use
constant iv, add a DCHECK for that.
- Optimize AesPatternCryptor handling on the special pattern 1:0.
Change-Id: Idc704e7bc6b347741336f38c6d3620fc19392960
This is part of the effort to support Opus in iso-bmff #83.
Changes in this CL:
- Add support for multiple SampleGroupDescription and SampleToGroup
boxes in TrackFragment box;
- Add support for SampleGroupDescription and SampleToGroup boxes
in SampleTable box;
- Add support for AudioRollRecoveryEntry in Sample Group and 'roll'
sample grouping type;
- Also fix a bug that default length was not set correctly in
SampleGroupDescription when constant iv is used.
Change-Id: I7e31386ea6cd17a8ee5e1dca4c1a90937d51368f
- BytesOfProtectedData in 'cens' SHALL also be 16-byte aligned
- Fix an incorrect box definition bug w.r.t to 'cbcs' and 'cens'
- Also add various protection scheme tests
Close#77Close#78
Change-Id: I63c8d8b01ce16ed60affa97ec95fc62bc2da06df
Replaces the InitializeFromH264 and InitializeFromH265 methods with
a single Initialize method that accepts a CodecType. Also moves the
CodecType enum from NaluReader to Nalu.
Change-Id: Ie33aa9c0d772a7f3c6a2e9c867e25be3edfe7828
- CBC cryptors should accept IV of size 8 bytes - it will be zero
extended to 16 bytes.
- Fixed iv() not updated problem in AesPatternCryptor.
- Replace kChainAcrossCalls with ConstantIvFlag enum flags.
Change-Id: I3fb4de0e8abbe891e6271e779373ba53f8df660d
- Add hls_name and hls_group_id fields to MuxerOptions. This is used to
pass the NAME and GROUP-ID values for EXT-X-MEDIA tag to
MuxerListener.
- Change MuxerListener::OnEncryptionInfoReady() to take an
initialization vector.
- Change MuxerListener::OnNewSegment() to take segment name.
- Reworded and formatted MuxerListener comments to Doxygen style.
Issue #85
Change-Id: Iea06e68552a56ae180177ffd6ca315a7cf39456c
- crypt_byte_block and skip_byte_block for pattern-based encryption.
- constant_iv for constant iv (used by 'cbcs' protection scheme).
- Also renamed iv_size to per_sample_iv_size.
- Also changed "bool is_encrypted" to "uint8_t is_protected" to align
with CENC spec.
Issue #78
Change-Id: I2878a91e0ebe536a08a3e3109daf157fe4440e27
- Remove EncryptionMode enums
- Remove AesEncryptor::InitializeWithRandomIv, replaced with
a static function AesCryptor::GenerateRandomIv, which should
be called to generate the iv if the iv is empty.
This change is to prepare support for CBCS and CENS pattern-based
protection schemes.
Issue #77
Change-Id: Icba35089d6e451cbea7ebbf5dd5674079f206390
- 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
- Optimize and clean up encryption and decryption code.
- Consolidate various CBC encryption/decryption schemes into a
common class.
- Make it a constructor argument whether cipher block chain is
continuous across Encrypt/Decrypt calls.
- Also align protected region size as required in CENC spec.
Issue #77
Change-Id: I533d92ada3cd80933b532b9c3a1cca105ba66f8e
This adds a preliminary H.265 parser. The parser only support
reading the slice header. This also attaches the H.265 parser to the
VideoSliceHeaderReader so H.265 frames can have unencrypted headers.
Issue #46Closes#40
Change-Id: I8b98e1f8bb04e359d9bf896fd5b2939c326b196b
The new algorithm will parse NAL unit header and only starts a new
NAL unit if it is valid, otherwise it will be considered part of
the previous NAL unit.
Closes#96
Change-Id: I45f2a0f37d51841ee8345d6d0d38fcda57e0a009
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
* EncryptionKey now contains them rather than a PSSH box.
* Outputs PSSH boxes for each entry.
* Outputs a ContentProtection element for each entry.
* Removed SystemName and UUID from KeySource.
* Removed --scheme_id_uri packager argument.
Issue #88
Change-Id: I2651784c3220fd64f5b1773fdcd70285690cf8c0
When normalizing language tags to their shortest form, we need to
split off subtags and treat them as separate components that do not
get changed.
Furthermore, MP4 can only store language tags without subtags. So
only store the main language in MP4 output.
Fixes b/27533973
Change-Id: I96049e274aae9841e321c53039ef6464a2e61574
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
Now the AVCDecoderConfiguration and HEVCDecoderConfiguration classes
will read the Nalu from the blocks, meaning they will store a
vector of Nalu objects for the data.
Also added H.265 to the Nalu class and added argument to NaluReader
to read H.264 vs H.265 Nalus.
Change-Id: I8d8194a90fd72a30af66e9776e01379f8428542c
This member refers to the size of the payload (the data after the
header). Since the pointer is called |data|, calling this size
|data_size| is confusing.
Change-Id: I9174cf6c5c402beddaebbce7c16514470ba0c3da
Now the Nalu data pointer points to the start of the NALU header
rather than pointing to the start code. Added a new method on
NaluReader to check whether the stream starts with a start code.
Change-Id: Ifaecbe0c911aa5cffdf0a966028e6cada8621cc3
For non-video slices, the data is not encrypted. This also skips the
frame headers for H.264; support for H.265 will be added later.
Issue #40
Change-Id: Id0cb0fb9ddb6adedf63ef4aef6b3a26260a21654
Removed the code for NALU splitting in the H.264 parser and moved
it to its own class. Also added support for length-prefixed
NALU splitting for use with the encrypting fragmenter.
Change-Id: I1e91266681f1b117fb2382cf80590651efc06619
Parse channel layout value from dec3 box. Pass it through audio stream
info. MPD builder forms audio channel configuration to signal ec-3
codec.
Specs: 1) ETSI TS 102 366 V1.3.1 Digital Audio Compression (AC-3,
Enhanced AC-3) Standard E.1.3.1.8.
2) DASH-IF Interoperability Points v3.0 9.2.1.2.
Issue #64
Change-Id: Ia2c22dd3d82e757ba5a88ba1de35c5d593f5005e
Before this change, the media file will fail to be parsed if it contains
non-wvtt text streams. This change allows demuxing of video and audio
streams in these media files even though the text stream is ignored.
Fixes#74.
Change-Id: I7ef108a51125c4965fe48c39efe9638f3a0e4759
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
For WebM contents, it is possible that we may receive some NewSampleEvent
before receiving ParserInitEvent. This is because init event is fired
after analyzing a video block which could come after an audio block.
Also modified Flush() function to return a bool to indicate whether the
the flush is successful and whether the samples are handled correctly.
And added macro to ensure Flush() and Parse() results are handled.
Fixes#71
Change-Id: I2294d6f529f54e4578344916559bb1bc116c745a
Kongqun Yang
Rintaro Kuroiwa
Jacob Trimble
Bei Li
Joey Parrish
Anders Hasselqvist