Diego Biurrun [Wed, 14 Mar 2018 13:47:43 +0000 (14:47 +0100)]
configure: Use indirection for the -o assembler flag also for x86asm
Similar indirections are used for the -o compiler/assembler flag to
account for differences in compiler/assembler syntax. For x86asm half
the infrastructure for doing the same currently exists unused.
Finish and use that infrastructure for consistency.
Ruiling Song [Tue, 6 Mar 2018 02:35:56 +0000 (10:35 +0800)]
qsv: align surface width/height to 16.
Per MediaSDK documentation, it requires width/height to 16 alignment.
Without this patch, hwupload pipeline may fail if 16 alignment is
not met. Although this patch also apply 16 alignment to qsv encoder/decoder,
it will not bring any side-effect to them as they are already aligned.
Signed-off-by: Ruiling Song <ruiling.song@intel.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Martin Storsjö [Mon, 12 Mar 2018 22:13:55 +0000 (00:13 +0200)]
configure: Don't assume an aligned stack on clang on windows
If we'd enable a 16 byte aligned stack, clang/llvm would also assume
that alignment everywhere and produce code that strictly requires it.
That would require adding realignment (via attribute_align_arg) on every
single public library function or enable -mstackrealign (which does the
same on every single function).
Also relatedly; the parameter currently tested (-mllvm
-stack-alignment=16) hasn't actually been supported for quite some
time; current clang versions use -mstack-alignment=16 for the same.
Actually testing for that parameter would be a different change
though, since it has a real risk of changing behaviour on any other
platform where clang is used.
Diego Biurrun [Thu, 8 Mar 2018 10:47:04 +0000 (11:47 +0100)]
configure: Restore original endianness test
Previously the bit pattern for the endianness test was declared as a
global, instead of a local, variable. This ensures that the pattern
appears unchanged in the object file and is not optimized out.
amf: Replace writer_id option with LIBAV_AMF_WRITER_ID constant
AMFTraceWriter is an abstraction to configure how AMF outputs its logs
for the current process and can be configured to output different levels
of trace output. If multiple LibavWriter objects are used in one process,
there will be duplication of output in av_log. Use a constant writer_id
to prevent this scenario.
Diego Biurrun [Thu, 15 Feb 2018 12:26:20 +0000 (13:26 +0100)]
fate: Error out more gracefully on configure failure
If configure fails before config.fate is generated, the report file misses
some values and gets discarded by the FATE server. In these cases, print
those values as "failed" along with the failing configure command line.
Mark Thompson [Sun, 11 Feb 2018 00:51:33 +0000 (00:51 +0000)]
cbs: Refcount all the things!
This makes it easier for users of the CBS API to get alloc/free right -
all subelements use the buffer API so that it's clear how to free them.
It also allows eliding some redundant copies: the packet -> fragment copy
disappears after this change if the input packet is refcounted, and more
codec-specific cases are now possible (but not included in this patch).
Mark Thompson [Mon, 11 Dec 2017 00:28:40 +0000 (00:28 +0000)]
cbs: Demote the "decomposition unimplemented" warning
This is harmless and should not be a warning - unknown units are passed
through to the write functions unchanged, and no other code will interact
with them.
While the linker produced import libraries might work with MSVC in
simple test cases, they don't if e.g. linking to multiple GNU ld
produced import libraries at the same time. (They end up importing
functions from the wrong libraries.) The ones produced by dlltool
work fine though.
Mark Thompson [Sat, 5 Aug 2017 21:10:46 +0000 (22:10 +0100)]
vf_hwupload/hwmap: Support setting a fixed pool size
These filters do not directly know whether the API they are using will
support dynamic frame pools, so this is somewhat tricky. If the user
sets extra_hw_frames, we assume that they are aware of the problem and
set a fixed size based on that. If not, most cases use dynamic sizing
just like they did previously. The hardware-reverse-mapping case for
hwmap previously had a large fixed size (64) here, primarily as a hack
for QSV use - this is removed and extra_hw_frames will need to be set
for QSV to work since it requires fixed-size pools (as the other cases
do, and which didn't work before).
Mark Thompson [Mon, 29 Jan 2018 22:18:00 +0000 (22:18 +0000)]
lavc: Add support for increasing hardware frame pool sizes
AVCodecContext.extra_hw_frames is added to the size of hardware frame
pools created by libavcodec for APIs which require fixed-size pools.
This allows the user to keep references to a greater number of frames
after decode, which may be necessary for some use-cases.
It is also added to the initial_pool_size value returned by
avcodec_get_hw_frames_parameters() if a fixed-size pool is required.
Martin Storsjö [Thu, 1 Feb 2018 12:56:49 +0000 (14:56 +0200)]
avpacket: Initialize the allocated padding area in side data
This makes sure that consumers of the side data actually can
rely on the padding as intended, without having the callers of
av_packet_new_side_data to explicitly zero initialize it.
Ruiling, Song [Wed, 24 Jan 2018 02:14:51 +0000 (10:14 +0800)]
qsv: Skip the packet if decoding failure
MediaSDK may fail to decode some frame, just skip it.
Otherwise, it will keep decoding the failure packet repeatedly
without processing any packet afterwards.
Signed-off-by: Ruiling Song <ruiling.song@intel.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Mark Thompson [Wed, 25 Oct 2017 23:18:45 +0000 (00:18 +0100)]
lavc: Remove register mechanism for hwaccels
There is no longer any need for a list of them at runtime, because
decoders now carry the pointers to their associated hwaccels internally.
The file containing external declarations is now used to make the list
of hwaccels for configure.
Mark Thompson [Wed, 25 Oct 2017 23:18:43 +0000 (00:18 +0100)]
lavc: Use hardware config information in ff_get_format()
This removes the dependency that hardware pixel formats previously had on
AVHWAccel instances, meaning only those which actually do something need
exist after this patch.
Also updates avcodec_default_get_format() to be able to choose hardware
formats if either a matching device has been supplied or no additional
external configuration is required, and avcodec_get_hw_frames_parameters()
to use the hardware config rather than searching the old hwaccel list.
Mark Thompson [Wed, 25 Oct 2017 23:18:42 +0000 (00:18 +0100)]
webp: Fix alpha initialisation
ff_get_format() in the next patch will reject formats which aren't in the
offered list, so the hack in 7cb9296db872c4221453e5411f242ebcfca62664 is
no longer valid. Change the hack by adding a new field in the VP8 decoder
context to indicate that it's actually WebP and don't call ff_get_format()
at all in that case.
Mark Thompson [Wed, 25 Oct 2017 23:18:40 +0000 (00:18 +0100)]
lavc: Add hardware config metadata for decoders supporting hardware output
This includes a pointer to the associated hwaccel for decoders using
hwaccels - these will be used later to implement the hwaccel setup
without needing a global list.
Also added is a new file listing all hwaccels as external declarations -
this will be used later to generate the hwaccel list at configure time.
wm4 [Tue, 12 Dec 2017 10:03:43 +0000 (11:03 +0100)]
avcodec: add metadata to identify wrappers and hardware decoders
Explicitly identify decoder/encoder wrappers with a common name. This
saves API users from guessing by the name suffix. For example, they
don't have to guess that "h264_qsv" is the h264 QSV implementation, and
instead they can just check the AVCodec .codec and .wrapper_name fields.
Explicitly mark AVCodec entries that are hardware decoders or most
likely hardware decoders with new AV_CODEC_CAPs. The purpose is allowing
API users listing hardware decoders in a more generic way. The proposed
AVCodecHWConfig does not provide this information fully, because it's
concerned with decoder configuration, not information about the fact
whether the hardware is used or not.
AV_CODEC_CAP_HYBRID exists specifically for QSV, which can have software
implementations in case the hardware is not capable.
Based on a patch by Philip Langdale <philipl@overt.org>.
Li, Zhong [Fri, 1 Dec 2017 08:48:45 +0000 (16:48 +0800)]
lavc/qsvenc: set HRD buffer size
Hypothetical Reference Decoding (HRD) model assumes that data flows
into a buffer of the fixed size BufferSizeInKB with a constant bitrate.
Smaller BufferSizeInKB means smaller frame size variations,
but more difficult to maintain HRD.
Signed-off-by: Zhong Li <zhong.li@intel.com> Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
projects / ffmpeg / log