get_y_image() wraps the decoder Y plane zero-copy but recorded
FFALIGN(width,32) as the Image stride instead of the frame's real
linesize[0]. For widths that are not a multiple of 32 the decoder packs
the plane tighter than FFALIGN, so:
- Image::Rotate/Flip re-derived the source stride via
av_image_fill_arrays(...,32) and read past the end of the borrowed
plane (and skewed Y-channel motion analysis, which reads the same
buffer).
- Image::Flip sized its destination from this->size, which is tight for a
borrowed plane and smaller than the 32-aligned layout the planes are
written at, overrunning the destination.
Record the frame's real linesize in get_y_image(); use the Image's own
linesize for the source plane-0 stride in Rotate/Flip; size Flip's
destination from av_image_get_buffer_size(...,32). All are no-ops for
self-consistent ZM-allocated (32-aligned) images.
tests/zm_image_linesize.cpp: Rotate 90/180/270 and Flip H/V over a tight,
non-32-aligned GRAY8 source verifying correct output.
refs #4788
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a uint64_t queue_index field to ZMPacket, assigned by PacketQueue
on enqueue via a monotonic counter. This lets clearPackets() find the
earliest iterator-pointed packet with a single min() over the 2-3
iterators, then check each scanned packet with one integer comparison
instead of searching a vector of shared_ptrs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The nvidia-vaapi-driver would fail with "list argument exceeds maximum
number" when decoding HEVC because GPU surfaces were being held in the
packet queue after transfer, exhausting the VAAPI surface pool.
Changes:
- Transfer hw frames to software immediately in receive_frame() while
the VA context is still valid, then release the GPU surface
- Check hw_frames_ctx in needs_hw_transfer() to detect already-transferred
frames
- Remove extra_hw_frames and thread_count settings (not needed with
immediate surface release)
- Fix EAGAIN handling in send_packet to wait instead of busy-loop
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Switch all owning AVFrame* variables to av_frame_ptr for
automatic cleanup.
Use AVBufferRef to store frame data in AVFrame where appropriate
so that it can be freed automatically with it's AVFrame.
Handle allocation errors.
Remove all uses of deprecated av_init_packet() and switch any stack
based AVPackets to unique_ptrs allocated with av_packet_alloc().
Ensure that all code paths call av_packet_unref() after use to reset
before next usage.
With this commit a unified structure for includes is introduced.
The general rules:
* Only include what you need
* Include wherever possible in the cpp and forward-declare in the header
The includes are sorted in a local to global fashion. This means for the include order:
0. If cpp file: The corresponding h file and an empty line
1. Includes from the project sorted alphabetically
2. System/library includes sorted alphabetically
3. Conditional includes
