libFlac: Exit at EOS in verify mode

When verify mode is enabled, once decoder flags end of stream, encode processing is considered complete

Bug: 174302683

Test: poc in bug description

Change-Id: I6d02103f58b86c303b05b312568382ce88e6b73c
Merged-In: I6d02103f58b86c303b05b312568382ce88e6b73c

libFLAC/stream_encoder.c

diff --git a/libFLAC/stream_encoder.c b/libFLAC/stream_encoder.c
index 037b8cb..b0b2650 100644
--- a/libFLAC/stream_encoder.c
+++ b/libFLAC/stream_encoder.c
@@ -2578,7 +2578,9 @@
 			encoder->private_->verify.needs_magic_hack = true;
 		}
 		else {
-			if(!FLAC__stream_decoder_process_single(encoder->private_->verify.decoder)) {
+			if(!FLAC__stream_decoder_process_single(encoder->private_->verify.decoder)
+			    || (!is_last_block
+				    && (FLAC__stream_encoder_get_verify_decoder_state(encoder) == FLAC__STREAM_DECODER_END_OF_STREAM))) {
 				FLAC__bitwriter_release_buffer(encoder->private_->frame);
 				FLAC__bitwriter_clear(encoder->private_->frame);
 				if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA)