diff --git a/tests/ffmpeg.regression.ref b/tests/ffmpeg.regression.ref
index 4a43f6adebcc3326e704876d368dee0d23bc5fd2..bd558228967e0547dff736d6fb2e722daa51ff7e 100644
--- a/tests/ffmpeg.regression.ref
+++ b/tests/ffmpeg.regression.ref
@@ -75,6 +75,14 @@ stddev: 10.40 PSNR:27.78 bytes:7602176
 600188 ./data/a-mpeg4-adv.avi
 60edc5a67271e425d0a2a52981895b81 *./data/out.yuv
 stddev: 10.25 PSNR:27.91 bytes:7602176
+e8387041071301c4527377e1666136b0 *./data/a-mpeg4-qprd.avi
+658496 ./data/a-mpeg4-qprd.avi
+d2fa3fecdf033e70590e948a3c88976b *./data/out.yuv
+stddev: 12.13 PSNR:26.44 bytes:7602176
+cf202860731f8a85d07dae559417f330 *./data/a-mpeg4-adap.avi
+400830 ./data/a-mpeg4-adap.avi
+e9fb8b8e8bef48085d19c4969b012f36 *./data/out.yuv
+stddev: 14.68 PSNR:24.78 bytes:7602176
 5fff534f0b958547dfdb811d4f289931 *./data/a-mpeg4-thread.avi
 761170 ./data/a-mpeg4-thread.avi
 fe1d119938f8a26174b38eeaa18dff85 *./data/out.yuv
diff --git a/tests/regression.sh b/tests/regression.sh
index 9b410d7562e15c0832fd20a7a59e7c4704ac3564..85c9e28ee1f95bfc37e3b6cd2b398d3a2e75ac25 100755
--- a/tests/regression.sh
+++ b/tests/regression.sh
@@ -368,6 +368,18 @@ if [ -n "$do_mpeg4adv" ] ; then
 # mpeg4
 do_video_encoding mpeg4-adv.avi "-qscale 9 -flags +mv4+part+aic+trell -mbd bits -ps 200" pgmyuv "-an -vcodec mpeg4"
 
+# mpeg4 decoding
+do_video_decoding
+
+# mpeg4
+do_video_encoding mpeg4-qprd.avi "-b 450k -bf 2 -flags +mv4+trell+qprd+mv0 -cmp 2 -subcmp 2 -mbd rd" pgmyuv "-an -vcodec mpeg4"
+
+# mpeg4 decoding
+do_video_decoding
+
+# mpeg4
+do_video_encoding mpeg4-adap.avi "-b 550k -bf 2 -flags +mv4+trell+mv0 -cmp 1 -subcmp 2 -mbd rd -scplx_mask 0.3" pgmyuv "-an -vcodec mpeg4"
+
 # mpeg4 decoding
 do_video_decoding
 fi
diff --git a/tests/rotozoom.regression.ref b/tests/rotozoom.regression.ref
index 711bd2784b8a6b0c6055040c741bdb03eed2941e..01581a8daeb4b354d9e1b2d9963fa8a539289912 100644
--- a/tests/rotozoom.regression.ref
+++ b/tests/rotozoom.regression.ref
@@ -75,6 +75,14 @@ stddev:  4.24 PSNR:35.56 bytes:7602176
 173590 ./data/a-mpeg4-adv.avi
 699edf05648fdc42196b7bebef9be269 *./data/out.yuv
 stddev:  4.84 PSNR:34.41 bytes:7602176
+a5dca818743c7871287160c5834a7536 *./data/a-mpeg4-qprd.avi
+235794 ./data/a-mpeg4-qprd.avi
+2cd225619e34fe8c12d10e7a28bb6cca *./data/out.yuv
+stddev:  4.27 PSNR:35.50 bytes:7602176
+c43ef40b07d77347beedd4ee16be0646 *./data/a-mpeg4-adap.avi
+206290 ./data/a-mpeg4-adap.avi
+ac55933a03c32f3941dfc8b71d738cd0 *./data/out.yuv
+stddev:  4.10 PSNR:35.85 bytes:7602176
 8cd8940d7451925784536fe9b2f2a5e3 *./data/a-mpeg4-thread.avi
 254260 ./data/a-mpeg4-thread.avi
 d160a4224ea1af66c85178912f8d3a7c *./data/out.yuv