This prevents leaking stale metadata from previous frames, for example if
an overlay temporarily obscures this input and then un-obscures it again. It
is worth pointing out that this does change the semantics subtly, because of
the smoothing period on detected HDR metadata, but I argue that the new
behavior is an improvement, as it will avoid leaking past metadata that is
definitely no longer relevant after an image is unobscured.
Sometimes, one input fully obscures another. In this case, we can skip
actually rendering any input below the obscuring one.
The reason I don't simply start the main render loop at `idx_start` will
become apparent in the following commit.
We can't use pl_frame_is_cropped() on this dummy frame, but we need to
determine the reference frame before we can map the real output, so to
resolve this conflict, we just reimplement the crop detection logic using
the output link dimensions.
It is possible for pl_queue_update() to return PL_QUEUE_OK, but to generate
an empty frame mix. This happens if the first frame of that input is in the
future.
In this case, we should skip an input as not active, similar to inputs that
have already reached EOF.
Instead of copying over the entire target and changing a few fields,
set the entire struct to a whitelist of safe properties that we want to
persist on the intermediate texture.
In particular, this avoids leaking irrelevant state related to the
acquire/release callbacks, e.g., which can otherwise cause deadlocks
when the same vulkan frame is attempted to be acquired twice.
This creates a new codec id for mxf vbi_vanc_smpte_436M streams.
This makes it easier to use from other [de]muxers and bitstream filters.
It's just the data in Table 7 (starts on page 13) of:
https://pub.smpte.org/latest/st436/s436m-2006.pdf
Signed-off-by: Jacob Lifshay <programmerjake@gmail.com>
They were not sorted before, sort using: LC_ALL=C sort --ignore-case
since that's what file-contents-sorter (added in next commit) supports.
Signed-off-by: Jacob Lifshay <programmerjake@gmail.com>
This commit adds a ProRes RAW hardware implementation written in Vulkan.
Both version 0 and version 1 streams are supported.
The implementation is highly parallelized, with 512 invocations dispatched
per every tile, with generally 4k tiles on a 5.8k stream.
Thanks to unlord for the 8-point iDCT.
Benchmark for a generic 5.8k RAW HQ file:
6900XT: 63fps
7900XTX: 84fps
6000 Ada: 120fps
Intel: 9fps
Simple parser that only parses frame information.
This helps avoid requiring the software decoder on init to decode a
single frame, since the decoder can be quite slow.
Fixes: out of array access
Fixes: BIGSLEEP-436510316/dwa_uncompress_write.exr
Found-by: Google Big Sleep
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: out of array read
Fixes: BIGSLEEP-436510153/dwa_uncompress_read.exr
Found-by: Google Big Sleep
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: utils.c:524:9: runtime error: call to function
handle_init_section_args through pointer to incorrect function type
'void (*)(void *, const char *, int, char **, int *)'
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
Add check for the return value of av_packet_alloc() to avoid potential NULL pointer dereference.
Moreover, replace redundant av_free() with fprintf().
Fixes: 9a38184a14 ("examples/decode_audio: allocate the packet dynamically")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Add av_free() to free s.temp_dwt_buffer and s.temp_idwt_buffer at the end of the function to avoid memory leak.
Fixes: 5d48e4eafa ("Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Add check for the return value of av_malloc_array() to avoid potential NULL pointer dereference.
Fixes: d3be186ed1 ("avfilter/firequalizer: add dumpfile and dumpscale option")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Move av_malloc() after the check for subsampling to avoid memory leak if subsampling < 0 and av_malloc() succeeds.
Fixes: a41a2efc85 ("lavc/videotoolbox: add VP9 hardware acceleration")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
In general, a provider code corresponds to a company/organization, and
the name should be that of the company, not of a given feature.
The feature is signalled in the "provider oriented code".
The exception is HDR Vivid, where the code 0x0004 indicates the HDR Vivid
feature itself rather than CUVA (China UHD Video Industry Alliance),
according to the UHD World Associations 'HDR Video Technology Part 2-1
Application Guide to System Integration' document.
ITU_T_T35_PROVIDER_CODE_CUVA -> ITU_T_T35_PROVIDER_CODE_HDR_VIVID
ITU_T_T35_PROVIDER_CODE_LCEVC-> ITU_T_T35_PROVIDER_CODE_VNOVA
ITU_T_T35_PROVIDER_CODE_SMTPE -> ITU_T_T35_PROVIDER_CODE_SAMSUNG
Signed-off-by: Maryla Ustarroz-Calonge <maryla@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
