Decoding pipeline has multiple stages, some of which may have their own
delay (e.g. bitstream filters). The code currently uses
AVCodecInternal.draining to track all of them, but they do not have to
all be in sync.
The goal is to distinguish between APIs provided by the generic layer to
individual codecs and APIs internal to the generic layer.
Start by moving ff_{decode,encode}_receive_frame() and
ff_{decode,encode}_preinit() into this new header, as those functions
are called from generic code and should not be visible to individual
codecs.
For uint8_t buf[EVC_NALU_LENGTH_PREFIX_SIZE], &buf still points
to the beginning of buf, but it is of type "pointer to array of
EVC_NALU_LENGTH_PREFIX_SIZE uint8_t" (i.e. pointer arithmetic
would operate on blocks of size EVC_NALU_LENGTH_PREFIX_SIZE).
This is of course a different type than uint8_t*, which is why
there have been casts in evc_read_packet(). But these are unnecessary
if one justs removes the unnecessary address-of operator.
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Not sure if the function naming frame_queue_destory is intended because
"destory" is not really a word. Changing it to "destroy" makes more sense.
Signed-off-by: QiTong Li <liqitong@163.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
example clips:
* 12b444vvc1_E_Sony_2
* 12b444Ietsrc_A_Kwai_2
* 10b444P16_D_Sony_2
* 12b444Iepp_A_Sharp_2
* 12b444SPetsrc_B_Kwai_2
Co-authored-by: Nuo Mi <nuomi2021@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Add an optional filter_line3 to the available optimisations.
filter_line3 is equivalent to filter_line, memcpy, filter_line
filter_line shares quite a number of loads and some calculations in
common with its next iteration and testing shows that using aarch64
neon filter_line3s performance is 30% better than two filter_lines
and a memcpy.
Adds a test for vf_bwdif filter_line3 to checkasm
Rounds job start lines down to a multiple of 4. This means that if
filter_line3 exists then filter_line will not sometimes be called
once at the end of a slice depending on thread count. The final slice
may do up to 3 extra lines but filter_edge is faster than filter_line
so it is unlikely to create any noticable thread load variation.
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Exports C filter_line needed for tail fixup of neon code
Adds neon for filter_line
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Adds clip and spatial macros for aarch64 neon
Exports C filter_edge needed for tail fixup of neon code
Adds neon for filter_edge
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Adds an outline for aarch neon functions
Adds common macros and consts for aarch64 neon
Exports C filter_intra needed for tail fixup of neon code
Adds neon for filter_intra
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Stop overwriting values from the bitstream arrays pps_tile_column_width_minus1
and pps_tile_row_height_minus1.
Signed-off-by: James Almer <jamrial@gmail.com>
Uses the existing code for av_get_random_seed() to return a buffer with
cryptographically secure random data, or an error if none could be generated.
Signed-off-by: James Almer <jamrial@gmail.com>
This ensures the requested amount of bytes is read.
Also remove /dev/random as it's no longer necessary.
Signed-off-by: James Almer <jamrial@gmail.com>
The HDR metadata should be removed after HDR to SDR conversion,
otherwise the output frame still has HDR side data.
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
This makes the filter output match that of the C version.
It was left intentionally while we figured out if it was better
or not, and while it makes certain samples better, it makes static
samples jump around slightly.
The standard only defined configurationVersion 1.
configurationVersion 0 is for backward compatibility predates the
standard.
This patch reduces the chance that some malformated streams being
detected as hvcC.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This is needed to ensure that AFD data continues to work when
capturing V210 video with the Decklink libavdevice input.
Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
Support decoding and embedding VANC packets delivered via SMPTE 2038
into the SDI output. We leverage an intermediate queue because
data packets are announced separately from video but we need to embed
the data into the video frame when it is output.
Note that this patch has some additional abstraction for data
streams in general as opposed to just SMPTE 2038 packets. This is
because subsequent patches will introduce support for other
data codecs.
Thanks to Marton Balint for review/feedback.
Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
The existing queue initialization function would always sets it's
maximum queue size to ctx->queue_size. But because we are introducing
more queues we may want the sizes to differ between them.
Move the specification of the queue size into an argument, which can
be passed from the caller.
This patch makes no functional change to the behavior. It is being
made to accommodate Marton Balin's request to split out the queue
size for the new VANC queue being introduced in a later patch.
Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
Use CFDictionarySetValue to enable low-latency encoding mode.
Since the key is a type of "EncoderSpecification", instead of
"CompressionProperty".
Signed-off-by: xufuji456 <839789740@qq.com>
Signed-off-by: Rick Kern <kernrj@gmail.com>
No need to generate intermediate files and probe them. We only care to know that the
output of the bsf excludes the frames in question, and a simple checksum is enough.
Signed-off-by: James Almer <jamrial@gmail.com>
Anton Khirnov
Andreas Rheinhardt
QiTong Li
Marton Balint
James Almer
Frank Plowman
John Cox
Paul B Mahol
Philip Langdale
Nuo Mi
Haihao Xiang
Lynne
Zhao Zhili
Tomas Härdin
Devin Heitmueller
xufuji456