Adjust get_format() to prefer the exact hwaccel_output_format requested
by the user when multiple hardware formats are available (e.g. both
AV_PIX_FMT_CUDA and AV_PIX_FMT_CUARRAY). Previously, the loop would
break on the first matching device type, ignoring the user's preferred
output format.
When the preferred format is not available, the code now falls back
gracefully and emits a warning.
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
1eb4712621