[Libav-user] Encode x265 annexb stream from grayscale images

[Marina Vasilevsky]

Hello,

Trying to create simple utility that encodes multiple images to x265 annexB
stream.
OS Ubuntu
libav version: 3.4.2

Command line works:
ffmpeg -loglevel 48 -f image2 -s 640x640 -pattern_type sequence
-start_number 180 -i /media/marina/sdxdata/sw/records/pattern/%08d.pgm -c:v
libx265 -preset veryslow -x265-params lossless=1 -vf "format=gray8" -f hevc
out1.bin


Source code - I followed guiding and examples of ffmpeg
avcodec_receive_packet always returns EAGAIN,
When I send null frame, it returns packet - with encoded latest frame.

Attached file is implementation of frame encode and codec init
There is main loop that  calls "AppendFrame" multiple times

Thanks,
Marina
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