Export each tile as its own stream, and the grid information as a Stream Group
of type TILE_GRID.
This also enables exporting other stream items like thumbnails, which may be
present in non tiled HEIF images too. For those, the primary stream will be
tagged with the default disposition.
Based on a patch by Swaraj Hota
Signed-off-by: James Almer <jamrial@gmail.com>
Previously, the following syntax elements were not read in the case
sps_num_subpics_minus is 0:
* sps_subpic_id_len_minus1
* sps_subpic_id_mapping_explicitly_signalled_flag
* sps_subpic_id_mapping_present_flag
* sps_subpic_id[i]
This was causing failures to decode bitstreams, for example the DVB's
"VVC HDR UHDTV1 OpenGOP 3840x2160 50fps HLG10 PiP" V&V bitstream.
Patch fixes this by moving the reads for these syntax elements out a
scope.
Signed-off-by: Frank Plowman <post@frankplowman.com>
Signed-off-by: James Almer <jamrial@gmail.com>
The spec says "the value of sps_num_subpics_minus1 shall be in the
range of 0 to MaxSlicesPerAu − 1, inclusive."
Signed-off-by: Frank Plowman <post@frankplowman.com>
Signed-off-by: James Almer <jamrial@gmail.com>
The SEI message read/write functions are called
via function pointers where the SEI message-specific
context is passed as void*. But the actual function
definitions use a pointer to their proper context
in place of void*, making the calls undefined behaviour.
Clang UBSan 17 warns about this.
This commit fixes this by adding wrapper functions
(created via macros) that have the right type that
call the actual functions. This reduced the number of failing
FATE tests with UBSan from 164 to 85 here.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Previously to support dynamic reconfigurations of the matrix string (e.g. 0m),
the rdiv values would always be cleared to 0.f, causing the rdiv to be
recalculated based on the new filter. This however had the side effect of
always ignoring user specified rdiv values.
Instead float user_rdiv[0] is added to ConvolutionContext which will store the
user specified rdiv values. Then the original rdiv array will store either the
user_rdiv or the automatically calculated 1/sum.
This fixes trac ticket #10294, #10867.
Signed-off-by: Stone Chen <chen.stonechen@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
av_get_sample/pix_fmt() return their respective enums
and are therefore not of the type int (*)(const char*),
yet they are called as-if they were of this type.
This works in practice, but is actually undefined behaviour.
With Clang 17 UBSan these violations are flagged, affecting lots
of tests. The number of failing tests went down from 3363 to 164
here with this patch.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The calls to the sei_decoded_picture_hash read and write functions
are performed with four pointer arguments; just because one
of them is unused by the callees does not mean that they
can be omitted: This is undefined behaviour.
(This was not recognized because the SEI_MESSAGE_RW macro
contains casts.)
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Jpeg2000 decoder is decoding in native endian, so let's use the same workaround
as in fate-mxf-probe-applehdr10.
Fixes ticket #10868.
Signed-off-by: Marton Balint <cus@passwd.hu>
This is the proper poll mode for waiting for an incoming connection according
to the SRT API docs.
Fixes ticket #9142.
Signed-off-by: Marton Balint <cus@passwd.hu>
For IBC, we'll utilize the check_available function.
However, neither MVP nor merge mode need to check the motion estimation region.
Let's rename it to avoid confusion.
Intra Block Copy relies on reconstructed pixels from the current frame.
We skip IBC during the inter prediction stage and handle it during the reconstruction stage.
An Intra Block Copy clip may use different modes for luma and chroma.
For example, MODE_IBC for luma and MODE_INTRA for chroma.
We have to check luma and chroma CuPredMode (cpm) separately.
AV_CODEC_CAP_VARIABLE_FRAME_SIZE has been set for alac_at encoder,
which means avctx->frame_size should be zero. However, alac_at
encoder also set avctx->frame_size. This leading to assert failure
in ffmpeg_sched.c
av_assert0(enc->sq_idx[0] >= 0);
Actually, the implementation of audiotoolboxenc.c doesn't support
frame_size been zero.
Fix#10720.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
The output of TX is extremely verbose and makes it harder to find other debug
log messages, so print most of it at trace level.
Signed-off-by: James Almer <jamrial@gmail.com>
Using av_bprint_init_for_buffer() avoids copying data
into the internal AVBPrint buffer (or worse: to allocate
a temporary buffer in case the internal buffer does not
suffice).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
