Including a unit test.
---
libavcodec/Makefile| 3 +-
libavcodec/h264_levels.c | 130 +++
libavcodec/h264_levels.h | 53 ++
libavcodec/tests/.gitignore| 1 +
libavcodec/tests/h264_levels.c | 183 +
tests/fate/libavcodec.mak | 5 +
6 files changed, 374 insertions(+), 1 deletion(-)
create mode 100644 libavcodec/h264_levels.c
create mode 100644 libavcodec/h264_levels.h
create mode 100644 libavcodec/tests/h264_levels.c
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index cbbfc9af2e..d07a9073af 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -355,7 +355,7 @@ OBJS-$(CONFIG_H264_OMX_ENCODER)+= omx.o
OBJS-$(CONFIG_H264_QSV_DECODER)+= qsvdec_h2645.o
OBJS-$(CONFIG_H264_QSV_ENCODER)+= qsvenc_h264.o
OBJS-$(CONFIG_H264_RKMPP_DECODER) += rkmppdec.o
-OBJS-$(CONFIG_H264_VAAPI_ENCODER) += vaapi_encode_h264.o
+OBJS-$(CONFIG_H264_VAAPI_ENCODER) += h264_levels.o vaapi_encode_h264.o
OBJS-$(CONFIG_H264_VIDEOTOOLBOX_ENCODER) += videotoolboxenc.o
OBJS-$(CONFIG_H264_V4L2M2M_DECODER)+= v4l2_m2m_dec.o
OBJS-$(CONFIG_H264_V4L2M2M_ENCODER)+= v4l2_m2m_enc.o
@@ -1134,6 +1134,7 @@ TESTPROGS-$(CONFIG_IDCTDSP) += dct
TESTPROGS-$(CONFIG_IIRFILTER) += iirfilter
TESTPROGS-$(HAVE_MMX) += motion
TESTPROGS-$(CONFIG_MPEGVIDEO) += mpeg12framerate
+TESTPROGS-$(CONFIG_H264_VAAPI_ENCODER)+= h264_levels
TESTPROGS-$(CONFIG_RANGECODER)+= rangecoder
TESTPROGS-$(CONFIG_SNOW_ENCODER) += snowenc
diff --git a/libavcodec/h264_levels.c b/libavcodec/h264_levels.c
new file mode 100644
index 00..6b4e18a914
--- /dev/null
+++ b/libavcodec/h264_levels.c
@@ -0,0 +1,130 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "h264_levels.h"
+
+// H.264 table A-1.
+static const H264LevelDescriptor h264_levels[] = {
+// Name MaxMBPS MaxBR MinCR
+// | level_idc | MaxFS|MaxCPB|
MaxMvsPer2Mb
+// | | cs3f| | MaxDpbMbs | | MaxVmvR | |
+{ "1", 10, 0, 1485, 99,396, 64,175, 64, 2, 0 },
+{ "1b", 10, 1, 1485, 99,396,128,350, 64, 2, 0 },
+{ "1b", 9, 0, 1485, 99,396,128,350, 64, 2, 0 },
+{ "1.1", 11, 0, 3000,396,900,192,500, 128, 2, 0 },
+{ "1.2", 12, 0, 6000,396, 2376,384, 1000, 128, 2, 0 },
+{ "1.3", 13, 0,11880,396, 2376,768, 2000, 128, 2, 0 },
+{ "2", 20, 0,11880,396, 2376, 2000, 2000, 128, 2, 0 },
+{ "2.1", 21, 0,19800,792, 4752, 4000, 4000, 256, 2, 0 },
+{ "2.2", 22, 0,20250, 1620, 8100, 4000, 4000, 256, 2, 0 },
+{ "3", 30, 0,40500, 1620, 8100, 1, 1, 256, 2, 32 },
+{ "3.1", 31, 0, 108000, 3600, 18000, 14000, 14000, 512, 4, 16 },
+{ "3.2", 32, 0, 216000, 5120, 20480, 2, 2, 512, 4, 16 },
+{ "4", 40, 0, 245760, 8192, 32768, 2, 25000, 512, 4, 16 },
+{ "4.1", 41, 0, 245760, 8192, 32768, 5, 62500, 512, 2, 16 },
+{ "4.2", 42, 0, 522240, 8704, 34816, 5, 62500, 512, 2, 16 },
+{ "5", 50, 0, 589824, 22080, 110400, 135000, 135000, 512, 2, 16 },
+{ "5.1", 51, 0, 983040, 36864, 184320, 24, 24, 512, 2, 16 },
+{ "5.2", 52, 0, 2073600, 36864, 184320, 24, 24, 512, 2, 16 },
+{ "6", 60, 0, 4177920, 139264, 696320, 24, 24, 8192, 2, 16 },
+{ "6.1", 61, 0, 8355840, 139264, 696320, 48, 48, 8192, 2, 16 },
+{ "6.2", 62, 0, 16711680, 139264, 696320, 80, 80, 8192, 2, 16 },
+};
+
+// H.264 table A-2 plus values from A-1.
+static const struct {
+int profile_idc;
+int cpb_br_vcl_factor;
+int cpb_br_nal_factor;
+} h264_br_factors[] = {
+{ 66, 1000, 1200 },
+{ 77, 1000, 1200 },
+{ 88, 1000, 1200 },
+{ 100, 1250, 1500 },
+{ 110, 3000, 3600 },
+{ 122, 4000, 4800 },
+{ 244, 4000, 4800 },
+{ 44, 4000, 4800 },
+};
+
+// We are only ever
