Encoder hangs when too few frames in source file

[karlsharman]

If the encoder is unable to read a frame from the source video file due to EOF, it hangs (goes in an endless loop).

A quick way to demonstrate this is:

./bin/EncoderAppStatic -c cfg/encoder_intra_vtm.cfg -c cfg/per-sequence/BasketballPass.cfg -fs 499 -f 3 --TemporalSubsampleRatio=1

Possible fix might be:

EncApp.cpp:1100:encodePrep(...)

Change

return keepDoing;

to

return keepDoing && !eos;

EncLib.cpp:799:encode(...)

Add

if (!m_iNumPicRcvd) { return false; }

to the start of the function.

EncLib.cpp:926:encode(...)

Add

if (!m_iNumPicRcvd) { return false; }

to the start of the function.