summaryrefslogtreecommitdiff
path: root/libavcodec/rv40data.h
diff options
context:
space:
mode:
authorKostya Shishkov <kostya.shishkov@gmail.com>2007-11-24 17:42:16 +0000
committerKostya Shishkov <kostya.shishkov@gmail.com>2007-11-24 17:42:16 +0000
commite082f4a89b8da92c4af39121febfb55aedc7cd11 (patch)
tree547a65d933e2b871010b1a82e8b19e2b29338af1 /libavcodec/rv40data.h
parentd3a9c44e1d151eec2dfed53fa29ad15c7cc97f19 (diff)
downloadffmpeg-e082f4a89b8da92c4af39121febfb55aedc7cd11.tar.gz
Data tables for future RV30/40 decoder
Originally committed as revision 11089 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/rv40data.h')
-rw-r--r--libavcodec/rv40data.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/libavcodec/rv40data.h b/libavcodec/rv40data.h
new file mode 100644
index 0000000000..d0a5493c2b
--- /dev/null
+++ b/libavcodec/rv40data.h
@@ -0,0 +1,116 @@
+/*
+ * RealVideo 4 decoder
+ * copyright (c) 2007 Konstantin Shishkov
+ *
+ * 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
+ */
+
+/**
+ * @file rv40data.h
+ * Miscellaneous RV40 tables.
+ */
+
+#ifndef FFMPEG_RV40DATA_H
+#define FFMPEG_RV40DATA_H
+
+#include <stdint.h>
+
+/**
+ * Standard widths and heights coded in RV40
+ */
+//@{
+static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0};
+static const int rv40_standard_heights[] = { 120, 132, 144, 240, 288, 480, 0, 0};
+static const int rv40_standard_heights2[] = { 180, 360, 576, 0};
+//@}
+
+#define MODE2_PATTERNS_NUM 20
+/**
+ * Intra types table
+ *
+ * These values are actually coded 3-tuples
+ * used for detecting standard block configurations
+ */
+static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = {
+ 0x000, 0x100, 0x200,
+ 0x011, 0x111, 0x211, 0x511, 0x611,
+ 0x022, 0x122, 0x222, 0x722,
+ 0x272, 0x227,
+ 0x822, 0x282, 0x228,
+ 0x112, 0x116, 0x221
+};
+
+/**
+ * Luma quantizer values
+ * Second table is used for inter blocks
+ */
+static const uint8_t rv40_luma_dc_quant[2][32] = {
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 },
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 }
+};
+
+/**
+ * @begingroup loopfilter coefficients used by RV40 loop filter
+ * @{
+ */
+/**
+ * Dither values for deblocking filter - left/top values
+ */
+static const uint8_t rv40_dither_l[16] = {
+ 0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
+ 0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
+};
+/**
+ * Dither values for deblocking filter - right/bottom values
+ */
+static const uint8_t rv40_dither_r[16] = {
+ 0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
+ 0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
+};
+
+/** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */
+static const uint8_t rv40_alpha_tab[32] = {
+ 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128, 122, 96, 75, 59, 47, 37,
+ 29, 23, 18, 15, 13, 11, 10, 9,
+ 8, 7, 6, 5, 4, 3, 2, 1
+};
+/** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */
+static const uint8_t rv40_beta_tab[32] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 4, 4, 4, 6, 6,
+ 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17
+};
+/** clip table for RV40 loop filter - the same as in JVT-A003r1 */
+static const uint8_t rv40_filter_clip_tbl[3][32] = {
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ },
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5
+ },
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
+ 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9
+ }
+};
+/** @} */ // end loopfilter group
+
+#endif /* FFMPEG_RV40DATA_H */