This BSF is supposed to be used in conjunction with mp3_header_compress,
which has been removed more than ten years ago in commit
c6080d89009056530119ab794ad02e4d515c7754. It mangled the headers
by removing the CRC field as well as fields that are supposed
to stay constant for the entirety of a stream (which are put into
extradata). This made these files unplayable; they need to be
decompressed with the BSF first (which does not happen automatically).
Even in this case the CRC does not get restored.
I am not aware that such compressed files exist at all; therefore
this commit removes the BSF completely.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Starting with an h264 implementation. Can be extended to support other codecs.
A few caveats:
- OpenGOP streams are currently not supported. The firt packet must be an IDR
frame.
- In some streams, a few frames at the end may not get a reordered PTS when
they reference frames past EOS. The code added to derive timestamps from
previous frames needs to extended.
Addresses ticket #502.
Signed-off-by: James Almer <jamrial@gmail.com>
Required to remux m2ts to mkv
Minor changes and porting to FFBitStreamFilter done by the committer.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This patch is analogous to 20f972701806be20a77f808db332d9489343bb78:
It hides the internal part of AVBitStreamFilter by adding a new
internal structure FFBitStreamFilter (declared in bsf_internal.h)
that has an AVBitStreamFilter as its first member; the internal
part of AVBitStreamFilter is moved to this new structure.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This BSF takes Temporal Units split across different AVPackets and merges them
by looking for Temporal Delimiter OBUs.
Signed-off-by: James Almer <jamrial@gmail.com>
This can remove units with types in or not in a given set from a stream.
For example, it can be used to remove all non-VCL NAL units from an H.264 or
H.265 stream.
This is able to modify some header metadata found in the VPS/SPS/VUI,
and can also add/remove AUDs.
(cherry picked from commit b31a9eae0233325c4b382c657f4b687d5d8b0812)
This applies a specific fixup to some Blu-ray streams which contain
redundant PPSs modifying irrelevant parameters of the stream which
confuse other transformations which require correct extradata.
A new single global PPS is created, and all of the redundant PPSs
within the stream are removed.
(cherry picked from commit e6874bc3af2f09af39b5d91b9c5f9ded67459696)
This is able to modify some header metadata found in the SPS/VUI,
and can also add/remove AUDs and insert user data in SEI NAL units.
(cherry picked from commit 9e93001b6135a23fe4e200196c08fb4fbffed6fc)
(cherry picked from commit c42b62d1f9641f10ffc23cad9abbe47d8a4a165b)
Supports all streams that the coded bitstream infrastructure does
(currently H.264, H.265 and MPEG-2).
(cherry picked from commit f11d8a5e8b185340cc50fcbc8a1437b0fbe7e931)
Takes a raw input stream containing frames with correct timestamps but
possibly out of order and inserts additional show-existing-frame
packets to correct the ordering.
(cherry picked from commit 34e051d16850701694410a0e72e0e4ff3a5ec293)
(cherry picked from commit b43b95f4789b6e60f9684918fd3c0a5f3f18aef6)
Also converted from bitstream to get_bits.
* commit '89b35a139e838deeb32ec20d8d034c81014401d0':
lavc: add a bitstream filter for extracting extradata from packets
Merged-by: James Almer <jamrial@gmail.com>
It is useful for testing/debugging and will also be used as the default
filter in the following commit adding pre-decode filtering to avoid
having a separate non-filtered codepath.
* commit '06edef3d5e072ef3c4face9ce946d2d9c36cc477':
Generate the lists of enabled protocols/bsfs from configure.
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
