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authorAlex Beregszaszi <alex@rtfs.hu>2005-01-22 17:52:01 +0000
committerAlex Beregszaszi <alex@rtfs.hu>2005-01-22 17:52:01 +0000
commit21aa398f3d9d949b81fc0888efcae68f83986ce8 (patch)
tree6c507b6cc4bdd731941bad42a042ab658475133b
parentb9866ebcc7d9891fb6b07cab70319fe1742a100a (diff)
preliminary vc9 bitstream decoder, committing to make syncing and team-work on it easier
Originally committed as revision 3861 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat
-rw-r--r--libavcodec/Makefile2
-rw-r--r--libavcodec/avcodec.h4
-rw-r--r--libavcodec/vc9.c1723
-rw-r--r--libavcodec/vc9data.h373
4 files changed, 2101 insertions, 1 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index fe468ca5ad..e95b888a34 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -21,7 +21,7 @@ OBJS= bitstream.o utils.o mem.o allcodecs.o \
msvideo1.o vqavideo.o idcinvideo.o adx.o rational.o faandct.o 8bps.o \
smc.o parser.o flicvideo.o truemotion1.o vmdav.o lcl.o qtrle.o g726.o \
flac.o vp3dsp.o integer.o snow.o tscc.o sonic.o ulti.o h264idct.o \
- qdrw.o xl.o rangecoder.o png.o pnm.o qpeg.o
+ qdrw.o xl.o rangecoder.o png.o pnm.o qpeg.o vc9.o
AMROBJS=
ifeq ($(AMR_NB),yes)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 921ea68b29..8cf6500ca3 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -102,6 +102,8 @@ enum CodecID {
CODEC_ID_FFVHUFF,
CODEC_ID_RV30,
CODEC_ID_RV40,
+ CODEC_ID_VC9,
+ CODEC_ID_WMV3,
/* various pcm "codecs" */
@@ -1886,6 +1888,8 @@ extern AVCodec msmpeg4v2_decoder;
extern AVCodec msmpeg4v3_decoder;
extern AVCodec wmv1_decoder;
extern AVCodec wmv2_decoder;
+extern AVCodec vc9_decoder;
+extern AVCodec wmv3_decoder;
extern AVCodec mpeg1video_decoder;
extern AVCodec mpeg2video_decoder;
extern AVCodec mpegvideo_decoder;
diff --git a/libavcodec/vc9.c b/libavcodec/vc9.c
new file mode 100644
index 0000000000..8f469d074c
--- /dev/null
+++ b/libavcodec/vc9.c
@@ -0,0 +1,1723 @@
+/*
+ * VC-9 and WMV3 decoder
+ * Copyright (c) 2005 Anonymous
+ * Copyright (c) 2005 Alex Beregszaszi
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/**
+ * @file vc9.c
+ * VC-9 and WMV3 decoder
+ *
+ * TODO: Norm-6 bitplane imode, most AP stuff, optimize, all of MB layer :)
+ * TODO: use MPV_ !!
+ */
+#include "common.h"
+#include "dsputil.h"
+#include "avcodec.h"
+#include "mpegvideo.h"
+#include "vc9data.h"
+
+/* Some inhibiting stuff */
+#define HAS_ADVANCED_PROFILE 1
+#define TRACE 1
+
+#if TRACE
+# define INIT_VLC(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, \
+ codes, codes_wrap, codes_size, use_static) \
+ if (init_vlc(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, \
+ codes, codes_wrap, codes_size, use_static) < 0) \
+ { \
+ av_log(v->avctx, AV_LOG_ERROR, "Error for " # vlc " (%i)\n", i); \
+ return -1; \
+ }
+#else
+# define INIT_VLC(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, \
+ codes, codes_wrap, codes_size, use_static) \
+ init_vlc(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, \
+ codes, codes_wrap, codes_size, use_static)
+#endif
+
+#define PROFILE_SIMPLE 0
+#define PROFILE_MAIN 1
+#define PROFILE_ADVANCED 3
+
+#define QUANT_FRAME_IMPLICIT 0
+#define QUANT_FRAME_EXPLICIT 1
+#define QUANT_NON_UNIFORM 2
+#define QUANT_UNIFORM 3
+
+/* Where quant can be changed */
+#define DQPROFILE_FOUR_EDGES 0
+#define DQPROFILE_DOUBLE_EDGES 1
+#define DQPROFILE_SINGLE_EDGE 2
+#define DQPROFILE_ALL_MBS 3
+
+/* Which edge is quantized with ALTPQUANT */
+#define DQSINGLE_BEDGE_LEFT 0
+#define DQSINGLE_BEDGE_TOP 1
+#define DQSINGLE_BEDGE_RIGHT 2
+#define DQSINGLE_BEDGE_BOTTOM 3
+
+/* Which pair of edges is quantized with ALTPQUANT */
+#define DQDOUBLE_BEDGE_TOPLEFT 0
+#define DQDOUBLE_BEDGE_TOPRIGHT 1
+#define DQDOUBLE_BEDGE_BOTTOMRIGHT 2
+#define DQDOUBLE_BEDGE_BOTTOMLEFT 3
+
+
+/* Start Codes */
+#define SEQ_SC 0x00000010F /* Sequence Start Code */
+#define SEQ_EC 0x00000000A /* Sequence End code */
+#define SEQ_HDR /* Sequence Header */
+#define ENTRY_SC 0x00000010E /* Entry Point Start Code */
+#define ENTRY_HDR /* Entry Point Header */
+#define FRM_SC 0x00000010D /* Frame Start Code */
+#define FRM_DAT /* Frame Data (includes a Frame Header) */
+#define FLD_SC 0x00000010C /* Field Start Code */
+#define FLD1_DAT /* Field 1 Data (includes a Frame Header) */
+#define FLD2_DAT /* Field 2 Data (includes a Field Header) */
+#define SLC_SC 0x00000010B /* Slice Start Code */
+#define SLC_HDR /* Slice Header */
+#define SLC_DAT /* Slice Data (FrH or FiH possible) */
+
+/* MV P modes */
+#define MV_PMODE_1MV_HPEL_BILIN 0
+#define MV_PMODE_1MV 1
+#define MV_PMODE_1MV_HPEL 2
+#define MV_PMODE_MIXED_MV 3
+#define MV_PMODE_INTENSITY_COMP 4
+
+/* MV P mode - the 5th element is only used for mode 1 */
+static const uint8_t mv_pmode_table[2][5] = {
+ { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV, MV_PMODE_INTENSITY_COMP },
+ { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_INTENSITY_COMP }
+};
+
+/* One more frame type */
+#define BI_TYPE 7
+
+/* FIXME Worse than ugly */
+static const int fps_nr[5] = { 24, 25, 30, 50, 60 },
+ fps_dr[2] = { 1000, 1001 };
+static const uint8_t pquant_table[3][32] = {
+ { /* Implicit quantizer */
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 11, 12,
+ 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 31
+ },
+ { /* Explicit quantizer, pquantizer uniform */
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+ },
+ { /* Explicit quantizer, pquantizer non-uniform */
+ 0, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
+ 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 31
+ }
+};
+
+// FIXME move this into the context
+#define VC9_BFRACTION_VLC_BITS 7
+static VLC vc9_bfraction_vlc;
+#define VC9_IMODE_VLC_BITS 4
+static VLC vc9_imode_vlc;
+#define VC9_NORM2_VLC_BITS 3
+static VLC vc9_norm2_vlc;
+/* Could be optimized, one table only needs 8 bits */
+#define VC9_TTMB_VLC_BITS 12
+static VLC vc9_ttmb_vlc[3];
+#define VC9_MV_DIFF_VLC_BITS 15
+static VLC vc9_mv_diff_vlc[4];
+#define VC9_CBPCY_I_VLC_BITS 13
+static VLC vc9_cbpcy_i_vlc;
+#define VC9_CBPCY_P_VLC_BITS 14
+static VLC vc9_cbpcy_p_vlc[4];
+#define VC9_4MV_BLOCK_PATTERN_VLC_BITS 6
+static VLC vc9_4mv_block_pattern_vlc[4];
+#define VC9_LUMA_DC_VLC_BITS 26
+static VLC vc9_luma_dc_vlc[2];
+
+typedef struct VC9Context{
+ /* No MpegEnc context, might be good to use it */
+ GetBitContext gb;
+ AVCodecContext *avctx;
+
+ /***************************/
+ /* Sequence Header */
+ /***************************/
+ /* Simple/Main Profile */
+ int res_sm; //reserved, 2b
+ int res_x8; //reserved
+ int multires; //frame-level RESPIC syntax element present
+ int res_fasttx; //always 1
+ int res_transtab; //always 0
+ int syncmarker; //Sync markers presents
+ int rangered; //RANGEREDFRM (range reduction) syntax element present
+ int res_rtm_flag; //reserved, set to 1
+ int reserved; //duh
+
+#if HAS_ADVANCED_PROFILE
+ /* Advanced Profile */
+ int level; //3
+ int chromaformat; //2
+ int postprocflag; //frame-based processing use
+ int broadcast; //TFF/RFF present
+ int interlace; //Progressive/interlaced (RPTFTM syntax element)
+ int tfcntrflag; //TFCNTR present
+ int panscanflag; //NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} presents
+ int extended_dmv;
+ int color_prim; //8
+ int transfer_char; //8
+ int matrix_coef; //8
+ int hrd_param_flag;
+#endif
+
+ /* All Profiles */
+ /* TODO: move all int to flags */
+ int profile; //2
+ int frmrtq_postproc; //3
+ int bitrtq_postproc; //5
+ int loopfilter;
+ int fastuvmc; //Rounding of qpel vector to hpel ? (not in Simple)
+ int extended_mv; //Ext MV in P/B (not in Simple)
+ int dquant; //Q varies with MBs, 2bits (not in Simple)
+ int vstransform; //variable-size transform46
+
+ int overlap; //overlapped transforms in use
+ int quantizer_mode; //2, quantizer mode used for sequence, see QUANT_*
+ int finterpflag; //INTERPFRM present
+
+
+ /*****************************/
+ /* Frame decoding */
+ /*****************************/
+ /* All profiles */
+ uint8_t mv_mode, mv_mode2; /* MV coding mode */
+ uint8_t pict_type; /* Picture type, mapped on MPEG types */
+ uint8_t pq, altpq; /* Quantizers */
+ uint8_t dquantfrm, dqprofile, dqsbedge, dqbilevel; /* pquant parameters */
+ int width_mb, height_mb;
+ int tile; /* 3x2 if (width_mb%3) else 2x3 */
+ int transacfrm2, transacfrm, transacdctab; //1bit elements
+ uint8_t ttmbf, ttfrm; /* Transform type */
+ uint8_t lumscale, lumshift; /* Luma compensation parameters */
+ int16_t bfraction; /* Relative position % anchors=> how to scale MVs */
+ uint8_t halfpq; /* Uniform quant over image and qp+.5 */
+ uint8_t respic;
+ /* Ranges:
+ * 0 -> [-64n 63.f] x [-32, 31.f]
+ * 1 -> [-128, 127.f] x [-64, 63.f]
+ * 2 -> [-512, 511.f] x [-128, 127.f]
+ * 3 -> [-1024, 1023.f] x [-256, 255.f]
+ */
+ uint8_t mvrange;
+ uint8_t pquantizer;
+ VLC *cbpcy_vlc /* Current CBPCY VLC table */,
+ *mv_diff_vlc /* Current MV Diff VLC table */,
+ *ttmb_vlc /* Current MB Transform Type VLC table */;
+ uint8_t *mv_type_mb_plane; /* bitplane for mv_type == "raw" */
+ uint8_t *skip_mb_plane, /* bitplane for skipped MBs */
+ *direct_mb_plane; /* bitplane for "direct" MBs */
+
+ /* S/M only ? */
+ uint8_t rangeredfrm, interpfrm;
+
+#if HAS_ADVANCED_PROFILE
+ /* Advanced */
+ uint8_t fcm; //0->Progressive, 2->Frame-Interlace, 3->Field-Interlace
+ uint8_t numpanscanwin;
+ uint8_t tfcntr;
+ uint8_t rptfrm, tff, rff;
+ uint8_t topleftx;
+ uint8_t toplefty;
+ uint8_t bottomrightx;
+ uint8_t bottomrighty;
+ uint8_t rndctrl;
+ uint8_t uvsamp;
+ uint8_t postproc;
+ int hrd_num_leaky_buckets;
+ uint8_t bit_rate_exponent;
+ uint8_t buffer_size_exponent;
+ uint8_t *ac_pred_plane;
+ uint8_t *over_flags_plane;
+ uint16_t *hrd_rate, *hrd_buffer;
+#endif
+} VC9Context;
+
+/* FIXME Slow and ugly */
+static int get_prefix(GetBitContext *gb, int stop, int len)
+{
+ int i = 0, tmp = !stop;
+
+ while (i != len && tmp != stop)
+ {
+ tmp = get_bits(gb, 1);
+ i++;
+ }
+ return i;
+}
+
+static int init_common(VC9Context *v)
+{
+ static int done = 0;
+ int i;
+
+ v->mv_type_mb_plane = v->direct_mb_plane = v->skip_mb_plane = NULL;
+ v->pq = -1;
+#if HAS_ADVANCED_PROFILE
+ v->ac_pred_plane = v->over_flags_plane = NULL;
+ v->hrd_rate = v->hrd_buffer = NULL;
+#endif
+ if(!done)
+ {
+ done = 1;
+ INIT_VLC(&vc9_bfraction_vlc, VC9_BFRACTION_VLC_BITS, 23,
+ vc9_bfraction_bits, 1, 1,
+ vc9_bfraction_codes, 1, 1, 1);
+ INIT_VLC(&vc9_norm2_vlc, VC9_NORM2_VLC_BITS, 4,
+ vc9_norm2_bits, 1, 1,
+ vc9_norm2_codes, 1, 1, 1);
+ INIT_VLC(&vc9_cbpcy_i_vlc, VC9_CBPCY_I_VLC_BITS, 64,
+ vc9_cbpcy_i_bits, 1, 1,
+ vc9_cbpcy_i_codes, 2, 2, 1);
+ INIT_VLC(&vc9_imode_vlc, VC9_IMODE_VLC_BITS, 7,
+ vc9_imode_bits, 1, 1,
+ vc9_imode_codes, 1, 1, 1);
+ for(i=0; i<3; i++)
+ {
+ INIT_VLC(&vc9_4mv_block_pattern_vlc[i], VC9_4MV_BLOCK_PATTERN_VLC_BITS, 16,
+ vc9_4mv_block_pattern_bits[i], 1, 1,
+ vc9_4mv_block_pattern_codes[i], 1, 1, 1);
+ INIT_VLC(&vc9_cbpcy_p_vlc[i], VC9_CBPCY_P_VLC_BITS, 64,
+ vc9_cbpcy_p_bits[i], 1, 1,
+ vc9_cbpcy_p_codes[i], 2, 2, 1);
+ }
+ for (i=0; i<2; i++)
+ {
+ INIT_VLC(&vc9_mv_diff_vlc[i], VC9_MV_DIFF_VLC_BITS, 73,
+ vc9_mv_diff_bits[i], 1, 1,
+ vc9_mv_diff_codes[i], 2, 2, 1);
+ INIT_VLC(&vc9_luma_dc_vlc[i], VC9_LUMA_DC_VLC_BITS, 26,
+ vc9_luma_dc_bits[i], 1, 1,
+ vc9_luma_dc_codes[i], 4, 4, 1);
+ INIT_VLC(&vc9_ttmb_vlc[i], VC9_TTMB_VLC_BITS, 16,
+ vc9_ttmb_bits[i], 1, 1,
+ vc9_ttmb_codes[i], 2, 2, 1);
+ }
+ }
+
+ return 0;
+}
+
+#if HAS_ADVANCED_PROFILE
+static int decode_hrd(VC9Context *v, GetBitContext *gb)
+{
+ int i, num;
+
+ num = get_bits(gb, 5);
+
+ if (v->hrd_rate || num != v->hrd_num_leaky_buckets)
+ {
+ av_free(v->hrd_rate);
+ v->hrd_rate = NULL;
+ }
+ if (!v->hrd_rate) v->hrd_rate = av_malloc(num);
+ if (!v->hrd_rate) return -1;
+
+ if (v->hrd_buffer || num != v->hrd_num_leaky_buckets)
+ {
+ av_free(v->hrd_buffer);
+ v->hrd_buffer = NULL;
+ }
+ if (!v->hrd_buffer) v->hrd_buffer = av_malloc(num);
+ if (!v->hrd_buffer) return -1;
+
+ v->hrd_num_leaky_buckets = num;
+
+ //exponent in base-2 for rate
+ v->bit_rate_exponent = get_bits(gb, 4);
+ //exponent in base-2 for buffer_size
+ v->buffer_size_exponent = get_bits(gb, 4);
+
+ for (i=0; i<num; i++)
+ {
+ //mantissae, ordered (if not, use a function ?
+ v->hrd_rate[i] = get_bits(gb, 16);
+ if (i && v->hrd_rate[i-1]>=v->hrd_rate[i])
+ {
+ av_log(v, AV_LOG_ERROR, "HDR Rates aren't strictly increasing:"
+ "%i vs %i\n", v->hrd_rate[i-1], v->hrd_rate[i]);
+ return -1;
+ }
+ v->hrd_buffer[i] = get_bits(gb, 16);
+ if (i && v->hrd_buffer[i-1]<v->hrd_buffer[i])
+ {
+ av_log(v, AV_LOG_ERROR, "HDR Buffers aren't decreasing:"
+ "%i vs %i\n", v->hrd_buffer[i-1], v->hrd_buffer[i]);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int decode_advanced_sequence_header(AVCodecContext *avctx, GetBitContext *gb)
+{
+ VC9Context *v = avctx->priv_data;
+ int nr, dr, aspect_ratio;
+
+ v->postprocflag = get_bits(gb, 1);
+ v->broadcast = get_bits(gb, 1);
+ v->interlace = get_bits(gb, 1);
+
+ v->tfcntrflag = get_bits(gb, 1);
+ v->finterpflag = get_bits(gb, 1); //common
+ v->panscanflag = get_bits(gb, 1);
+ v->reserved = get_bits(gb, 1);
+ if (v->reserved)
+ {
+ av_log(avctx, AV_LOG_ERROR, "RESERVED should be 0 (is %i)\n",
+ v->reserved);
+ return -1;
+ }
+ if (v->extended_mv)
+ v->extended_dmv = get_bits(gb, 1);
+
+ if (get_bits(gb, 1) /* pic_size_flag */)
+ {
+ avctx->coded_width = get_bits(gb, 12);
+ avctx->coded_height = get_bits(gb, 12);
+ if ( get_bits(gb, 1) /* disp_size_flag */)
+ {
+ avctx->width = get_bits(gb, 14);
+ avctx->height = get_bits(gb, 14);
+ }
+
+ if ( get_bits(gb, 1) /* aspect_ratio_flag */)
+ {
+ aspect_ratio = get_bits(gb, 4); //SAR
+ if (aspect_ratio == 0x0F) //FF_ASPECT_EXTENDED
+ {
+ avctx->sample_aspect_ratio.num = get_bits(gb, 8);
+ avctx->sample_aspect_ratio.den = get_bits(gb, 8);
+ }
+ else if (aspect_ratio == 0x0E)
+ {
+ av_log(avctx, AV_LOG_DEBUG, "Reserved AR found\n");
+ }
+ else
+ {
+ avctx->sample_aspect_ratio = vc9_pixel_aspect[aspect_ratio];
+ }
+ }
+ }
+ else
+ {
+ avctx->coded_width = avctx->width;
+ avctx->coded_height = avctx->height;
+ }
+
+ if ( get_bits(gb, 1) /* framerateflag */)
+ {
+ if ( get_bits(gb, 1) /* framerateind */)
+ {
+ nr = get_bits(gb, 8);
+ dr = get_bits(gb, 4);
+ if (nr<1)
+ {
+ av_log(avctx, AV_LOG_ERROR, "0 is forbidden for FRAMERATENR\n");
+ return -1;
+ }
+ if (nr>5)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Reserved FRAMERATENR %i not handled\n", nr);
+ }
+ if (dr<1)
+ {
+ av_log(avctx, AV_LOG_ERROR, "0 is forbidden for FRAMERATEDR\n");
+ }
+ if (dr>2)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Reserved FRAMERATEDR %i not handled\n", dr);
+ }
+ avctx->frame_rate_base = fps_nr[dr];
+ avctx->frame_rate = fps_nr[nr];
+ }
+ else
+ {
+ nr = get_bits(gb, 16);
+ // 0.03125->2048Hz / 0.03125Hz
+ avctx->frame_rate = 1000000;
+ avctx->frame_rate_base = 31250*(1+nr);
+ }
+ }
+
+ if ( get_bits(gb, 1) /* color_format_flag */)
+ {
+ //Chromacity coordinates of color primaries
+ //like ITU-R BT.709-2, BT.470-2, ...
+ v->color_prim = get_bits(gb, 8);
+ if (v->color_prim<1)
+ {
+ av_log(avctx, AV_LOG_ERROR, "0 for COLOR_PRIM is reserved\n");
+ return -1;
+ }
+ if (v->color_prim == 3 || v->color_prim>6)
+ {
+ av_log(avctx, AV_LOG_DEBUG, "Reserved COLOR_PRIM %i found\n",
+ v->color_prim);
+ return -1;
+ }
+
+ //Opto-electronic transfer characteristics
+ v->transfer_char = get_bits(gb, 8);
+ if (v->transfer_char == 3 || v->transfer_char>8)
+ {
+ av_log(avctx, AV_LOG_DEBUG, "Reserved TRANSFERT_CHAR %i found\n",
+ v->color_prim);
+ return -1;
+ }
+
+ //Matrix coefficient for primariev->YCbCr
+ v->matrix_coef = get_bits(gb, 8);
+ if (v->matrix_coef < 1) return -1; //forbidden
+ if ((v->matrix_coef>3 && v->matrix_coef<6) || v->matrix_coef>7)
+ {
+ av_log(avctx, AV_LOG_DEBUG, "Reserved MATRIX_COEF %i found\n",
+ v->color_prim);
+ return -1;
+ }
+ }
+
+ //Hypothetical reference decoder indicator flag
+ v->hrd_param_flag = get_bits(gb, 1);
+ if (v->hrd_param_flag)
+ {
+ if (decode_hrd(v, gb) < 0) return -1;
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Advanced profile not supported yet\n");
+ return -1;
+}
+#endif
+
+static int decode_sequence_header(AVCodecContext *avctx, GetBitContext *gb)
+{
+ VC9Context *v = avctx->priv_data;
+
+ v->profile = get_bits(gb, 2);
+ av_log(avctx, AV_LOG_DEBUG, "Profile: %i\n", v->profile);
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile > PROFILE_MAIN)
+ {
+ v->level = get_bits(gb, 3);
+ v->chromaformat = get_bits(gb, 2);
+ if (v->chromaformat != 1)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Only 4:2:0 chroma format supported\n");
+ return -1;
+ }
+ }
+ else
+#endif
+ {
+ v->res_sm = get_bits(gb, 2); //reserved
+ if (v->res_sm)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Reserved RES_SM=%i is forbidden\n", v->res_sm);
+ //return -1;
+ }
+ }
+
+ // (fps-2)/4 (->30)
+ v->frmrtq_postproc = get_bits(gb, 3); //common
+ // (bitrate-32kbps)/64kbps
+ v->bitrtq_postproc = get_bits(gb, 5); //common
+ v->loopfilter = get_bits(gb, 1); //common
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile <= PROFILE_MAIN)
+#endif
+ {
+ v->res_x8 = get_bits(gb, 1); //reserved
+ if (v->res_x8)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "1 for reserved RES_X8 is forbidden\n");
+ return -1;
+ }
+ v->multires = get_bits(gb, 1);
+ v->res_fasttx = get_bits(gb, 1);
+ if (!v->res_fasttx)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "0 for reserved RES_FASTTX is forbidden\n");
+ //return -1;
+ }
+ }
+
+ v->fastuvmc = get_bits(gb, 1); //common
+ if (!v->profile && !v->fastuvmc)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "FASTUVMC unavailable in Simple Profile\n");
+ return -1;
+ }
+ v->extended_mv = get_bits(gb, 1); //common
+ if (!v->profile && v->extended_mv)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Extended MVs unavailable in Simple Profile\n");
+ return -1;
+ }
+ v->dquant = get_bits(gb, 2); //common
+ v->vstransform = get_bits(gb, 1); //common
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile <= PROFILE_MAIN)
+#endif
+ {
+ v->res_transtab = get_bits(gb, 1);
+ if (v->res_transtab)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "1 for reserved RES_TRANSTAB is forbidden\n");
+ return -1;
+ }
+ }
+
+ v->overlap = get_bits(gb, 1); //common
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile <= PROFILE_MAIN)
+#endif
+ {
+ v->syncmarker = get_bits(gb, 1);
+ v->rangered = get_bits(gb, 1);
+ }
+
+ avctx->max_b_frames = get_bits(gb, 3); //common
+ v->quantizer_mode = get_bits(gb, 2); //common
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile <= PROFILE_MAIN)
+#endif
+ {
+ v->finterpflag = get_bits(gb, 1); //common
+ v->res_rtm_flag = get_bits(gb, 1); //reserved
+ if (!v->res_rtm_flag)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "0 for reserved RES_RTM_FLAG is forbidden\n");
+ //return -1;
+ }
+#if TRACE
+ av_log(avctx, AV_LOG_INFO,
+ "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, MultiRes=%i, FastUVMV=%i, Extended MV=%i\n"
+ "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
+ "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
+ v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->loopfilter, v->multires, v->fastuvmc, v->extended_mv,
+ v->rangered, v->vstransform, v->overlap, v->syncmarker,
+ v->dquant, v->quantizer_mode, avctx->max_b_frames
+ );
+#endif
+ }
+#if HAS_ADVANCED_PROFILE
+ else decode_advanced_sequence_header(avctx, gb);
+#endif
+}
+
+
+#if HAS_ADVANCED_PROFILE
+/*****************************************************************************/
+/* Entry point decoding (Advanced Profile) */
+/*****************************************************************************/
+static int advanced_entry_point_process(AVCodecContext *avctx, GetBitContext *gb)
+{
+ VC9Context *v = avctx->priv_data;
+ int range_mapy_flag, range_mapuv_flag, i;
+ if (v->profile != PROFILE_ADVANCED)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Entry point are only defined in Advanced Profile!\n");
+ return -1; //Only for advanced profile!
+ }
+ if (v->hrd_param_flag)
+ {
+ //Update buffer fullness
+ av_log(avctx, AV_LOG_DEBUG, "Buffer fullness update\n");
+ for (i=0; i<v->hrd_num_leaky_buckets; i++)
+ skip_bits(gb, 8);
+ }
+ if ((range_mapy_flag = get_bits(gb, 1)))
+ {
+ //RANGE_MAPY
+ av_log(avctx, AV_LOG_DEBUG, "RANGE_MAPY\n");
+ skip_bits(gb, 3);
+ }
+ if ((range_mapuv_flag = get_bits(gb, 1)))
+ {
+ //RANGE_MAPUV
+ av_log(avctx, AV_LOG_DEBUG, "RANGE_MAPUV\n");
+ skip_bits(gb, 3);
+ }
+ if (v->panscanflag)
+ {
+ //NUMPANSCANWIN
+ v->numpanscanwin = get_bits(gb, 3);
+ av_log(avctx, AV_LOG_DEBUG, "NUMPANSCANWIN: %u\n", v->numpanscanwin);
+ }
+ return 0;
+}
+#endif
+
+/******************************************************************************/
+/* Bitplane decoding */
+/******************************************************************************/
+#define IMODE_RAW 0
+#define IMODE_NORM2 1
+#define IMODE_DIFF2 2
+#define IMODE_NORM6 3
+#define IMODE_DIFF6 4
+#define IMODE_ROWSKIP 5
+#define IMODE_COLSKIP 6
+
+//FIXME optimize
+static int bitplane_decoding(uint8_t* plane, int width, int height, VC9Context *v)
+{
+ int imode, x, y, code;
+ uint8_t invert, *planep = plane;
+
+ invert = get_bits(&v->gb, 1);
+ imode = get_vlc2(&v->gb, vc9_imode_vlc.table, VC9_IMODE_VLC_BITS, 2);
+ av_log(v->avctx, AV_LOG_DEBUG, "Bitplane: imode=%i, invert=%i\n",
+ imode, invert);
+
+ switch (imode)
+ {
+ case IMODE_RAW:
+ for (y=0; y<height; y++)
+ {
+ for (x=0; x<width; x++)
+ planep[x] = (-get_bits(&v->gb, 1)); //-1=0xFF
+ planep += width;
+ }
+ break;
+ case IMODE_DIFF2:
+ case IMODE_NORM2:
+ if ((height*width) & 1) *(++planep) = get_bits(&v->gb, 1);
+ code = get_vlc2(&v->gb, vc9_norm2_vlc.table, VC9_NORM2_VLC_BITS, 2);
+ *(++planep) = code&1; //lsb => left
+ *(++planep) = code&2; //msb => right - this is a bitplane, so only !0 matters
+ break;
+ case IMODE_DIFF6:
+ case IMODE_NORM6:
+ av_log(v->avctx, AV_LOG_ERROR, "Imode using Norm-6 isn't supported\n");
+ return -1;
+ break;
+ case IMODE_ROWSKIP:
+ for (y=0; y<height; y++)
+ {
+ if (get_bits(&v->gb, 1)) //rowskip
+ memset(planep, 0, width);
+ else for (x=0; x<width; x++) planep[x] = get_bits(&v->gb, 1);
+ planep += width;
+ }
+ break;
+ case IMODE_COLSKIP: //Teh ugly
+ for (x=0; x<width; x++)
+ {
+ planep = plane;
+ if (get_bits(&v->gb, 1)) //colskip
+ {
+ for (y=0; y<height; y++)
+ {
+ planep[x] = 0;
+ planep += width;
+ }
+ }
+ else
+ {
+ for (y=0; y<height; y++)
+ {
+ planep[x] = get_bits(&v->gb, 1);
+ planep += width;
+ }
+ }
+ }
+ break;
+ default: break;
+ }
+
+ /* Applying diff operator */
+ if (imode == IMODE_DIFF2 || imode == IMODE_DIFF2)
+ {
+ /* And what about j=0 !? */
+ planep = plane + width;
+ memset(plane, invert, width);
+ for (y=0; y<height; y++)
+ {
+ planep[0] = planep[-width];
+ for (x=1; x<width; x++)
+ {
+ if (planep[x-1] != planep[-width]) planep[x] = invert;
+ else planep[x] = planep[x-1];
+ }
+ planep += width;
+ }
+ }
+ else if (invert)
+ {
+ planep = plane;
+ for (x=0; x<width*height; x++) planep[x] = !planep[x];
+ }
+ return 0;
+}
+
+/*****************************************************************************/
+/* VOP Dquant decoding */
+/*****************************************************************************/
+static int vop_dquant_decoding(VC9Context *v)
+{
+ int pqdiff;
+
+ //variable size
+ if (v->dquant == 2)
+ {
+ pqdiff = get_bits(&v->gb, 3);
+ if (pqdiff == 7) v->altpq = get_bits(&v->gb, 5);
+ else v->altpq = v->pq + pqdiff + 1;
+ }
+ else
+ {
+ v->dquantfrm = get_bits(&v->gb, 1);
+ if ( v->dquantfrm )
+ {
+ v->dqprofile = get_bits(&v->gb, 2);
+ switch (v->dqprofile)
+ {
+ case DQPROFILE_SINGLE_EDGE:
+ case DQPROFILE_DOUBLE_EDGES:
+ v->dqsbedge = get_bits(&v->gb, 2);
+ break;
+ case DQPROFILE_ALL_MBS:
+ v->dqbilevel = get_bits(&v->gb, 1);
+ default: break; //Forbidden ?
+ }
+ if (!v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)
+ {
+ pqdiff = get_bits(&v->gb, 3);
+ if (pqdiff == 7) v->altpq = get_bits(&v->gb, 5);
+ else v->altpq = v->pq + pqdiff + 1;
+ }
+ }
+ }
+ return 0;
+}
+
+/*****************************************************************************/
+/* All Profiles picture header decoding specific functions */
+/* Only pro/epilog differs between Simple/Main and Advanced => check caller */
+/*****************************************************************************/
+static int decode_bi_picture_header(VC9Context *v)
+{
+ /* Very particular case:
+ - for S/M Profiles, decode_b_picture_header reads BF,
+ bfraction then determine if this is a BI frame, calling
+ this function afterwards
+ - for A Profile, PTYPE already tells so and we can go
+ directly there
+ */
+ int pqindex;
+
+ /* Read the quantization stuff */
+ pqindex = get_bits(&v->gb, 5);
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = pquant_table[0][pqindex];
+ else
+ {
+ v->pq = pquant_table[v->quantizer_mode-1][pqindex];
+ }
+ if (pqindex < 9) v->halfpq = get_bits(&v->gb, 1);
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits(&v->gb, 1);
+
+ /* Read the MV type/mode */
+ if (v->extended_mv == 1)
+ v->mvrange = get_prefix(&v->gb, 0, 3);
+
+ /* FIXME: what table are used in that case ? */
+ v->mv_diff_vlc = &vc9_mv_diff_vlc[0];
+ v->cbpcy_vlc = &vc9_cbpcy_i_vlc;
+
+ av_log(v->avctx, AV_LOG_DEBUG, "B frame, QP=%i\n", v->pq);
+ av_log(v->avctx, AV_LOG_ERROR, "BI_TYPE not supported yet\n");
+ /* Epilog should be done in caller */
+ return -1;
+}
+
+static int decode_b_picture_header(VC9Context *v)
+{
+ int pqindex;
+
+ /* Prolog common to all frametypes should be done in caller */
+ if (v->profile == PROFILE_SIMPLE)
+ {
+ av_log(v, AV_LOG_ERROR, "Found a B frame while in Simple Profile!\n");
+ return FRAME_SKIPED;
+ }
+
+ v->bfraction = vc9_bfraction_lut[get_vlc2(&v->gb, vc9_bfraction_vlc.table,
+ VC9_BFRACTION_VLC_BITS, 2)];
+ if (v->bfraction < -1)
+ {
+ av_log(v, AV_LOG_ERROR, "Invalid BFRaction\n");
+ return FRAME_SKIPED;
+ }
+ else if (!v->bfraction)
+ {
+ /* We actually have a BI frame */
+ return decode_bi_picture_header(v);
+ }
+
+ /* Read the quantization stuff */
+ pqindex = get_bits(&v->gb, 5);
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = pquant_table[0][pqindex];
+ else
+ {
+ v->pq = pquant_table[v->quantizer_mode-1][pqindex];
+ }
+ if (pqindex < 9) v->halfpq = get_bits(&v->gb, 1);
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits(&v->gb, 1);
+
+ /* Read the MV type/mode */
+ if (v->extended_mv == 1)
+ v->mvrange = get_prefix(&v->gb, 0, 3);
+ v->mv_mode = get_bits(&v->gb, 1);
+ if (v->pq < 13)
+ {
+ if (!v->mv_mode)
+ {
+ v->mv_mode = get_bits(&v->gb, 2);
+ if (v->mv_mode)
+ av_log(v, AV_LOG_ERROR,
+ "mv_mode for lowquant B frame was %i\n", v->mv_mode);
+ }
+ }
+ else
+ {
+ if (!v->mv_mode)
+ {
+ if (get_bits(&v->gb, 1))
+ av_log(v, AV_LOG_ERROR,
+ "mv_mode for highquant B frame was %i\n", v->mv_mode);
+ }
+ v->mv_mode = 1-v->mv_mode; //To match (pq < 13) mapping
+ }
+
+ if (v->mv_mode == MV_PMODE_MIXED_MV)
+ {
+ if (bitplane_decoding( v->mv_type_mb_plane, v->width_mb,
+ v->height_mb, v)<0)
+ return -1;
+ }
+
+ //bitplane
+ bitplane_decoding(v->direct_mb_plane, v->width_mb, v->height_mb, v);
+ bitplane_decoding(v->skip_mb_plane, v->width_mb, v->height_mb, v);
+
+ /* FIXME: what is actually chosen for B frames ? */
+ v->mv_diff_vlc = &vc9_mv_diff_vlc[get_bits(&v->gb, 2)];
+ v->cbpcy_vlc = &vc9_cbpcy_p_vlc[get_bits(&v->gb, 2)];
+ if (v->dquant)
+ {
+ vop_dquant_decoding(v);
+ }
+
+ if (v->vstransform)
+ {
+ v->ttmbf = get_bits(&v->gb, 1);
+ if (v->ttmbf)
+ {
+ v->ttfrm = get_bits(&v->gb, 2);
+ av_log(v, AV_LOG_INFO, "Transform used: %ix%i\n",
+ (v->ttfrm & 2) ? 4 : 8, (v->ttfrm & 1) ? 4 : 8);
+ }
+ }
+ /* Epilog should be done in caller */
+ return 0;
+}
+
+static int decode_i_picture_header(VC9Context *v)
+{
+ int pqindex, status = 0, ac_pred, condover;
+
+ /* Prolog common to all frametypes should be done in caller */
+ //BF = Buffer Fullness
+ if (v->profile <= PROFILE_MAIN && get_bits(&v->gb, 7))
+ {
+ av_log(v, AV_LOG_DEBUG, "I BufferFullness not 0\n");
+ }
+
+ /* Quantizer stuff */
+ pqindex = get_bits(&v->gb, 5);
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = pquant_table[0][pqindex];
+ else
+ {
+ v->pq = pquant_table[v->quantizer_mode-1][pqindex];
+ }
+ if (pqindex < 9) v->halfpq = get_bits(&v->gb, 1);
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits(&v->gb, 1);
+ av_log(v->avctx, AV_LOG_DEBUG, "I frame: QP=%i (+%i/2)\n",
+ v->pq, v->halfpq);
+#if HAS_ADVANCED_PROFILE
+ if (v->profile <= PROFILE_MAIN)
+#endif
+ {
+ if (v->extended_mv) v->mvrange = get_prefix(&v->gb, 0, 3);
+ if (v->multires) v->respic = get_bits(&v->gb, 2);
+ }
+#if HAS_ADVANCED_PROFILE
+ else
+ {
+ ac_pred = get_bits(&v->gb, 1);
+ if (v->postprocflag) v->postproc = get_bits(&v->gb, 1);
+ /* 7.1.1.34 + 8.5.2 */
+ if (v->overlap && v->pq<9)
+ {
+ condover = get_bits(&v->gb, 1);
+ if (condover)
+ {
+ condover = 2+get_bits(&v->gb, 1);
+ if (condover == 3)
+ status = bitplane_decoding(v->over_flags_plane,
+ v->width_mb, v->height_mb, v);
+ }
+ }
+ }
+#endif
+
+ /* Epilog should be done in caller */
+ return status;
+}
+
+static int decode_p_picture_header(VC9Context *v)
+{
+ /* INTERFRM, FRMCNT, RANGEREDFRM read in caller */
+ int lowquant, pqindex;
+
+ pqindex = get_bits(&v->gb, 5);
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = pquant_table[0][pqindex];
+ else
+ {
+ v->pq = pquant_table[v->quantizer_mode-1][pqindex];
+ }
+ if (pqindex < 9) v->halfpq = get_bits(&v->gb, 1);
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits(&v->gb, 1);
+ av_log(v->avctx, AV_LOG_DEBUG, "P Frame: QP=%i (+%i/2)\n",
+ v->pq, v->halfpq);
+ if (v->extended_mv == 1) v->mvrange = get_prefix(&v->gb, 0, 3);
+#if HAS_ADVANCED_PROFILE
+ if (v->profile > PROFILE_MAIN)
+ {
+ if (v->postprocflag) v->postproc = get_bits(&v->gb, 1);
+ }
+ else
+#endif
+ if (v->multires) v->respic = get_bits(&v->gb, 2);
+ lowquant = (v->pquantizer>12) ? 0 : 1;
+ v->mv_mode = mv_pmode_table[lowquant][get_prefix(&v->gb, 1, 4)];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
+ {
+ v->mv_mode2 = mv_pmode_table[lowquant][get_prefix(&v->gb, 1, 3)];
+ v->lumscale = get_bits(&v->gb, 6);
+ v->lumshift = get_bits(&v->gb, 6);
+ }
+
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV)
+ || v->mv_mode == MV_PMODE_MIXED_MV)
+ {
+ if (bitplane_decoding(v->mv_type_mb_plane, v->width_mb,
+ v->height_mb, v) < 0)
+ return -1;
+ }
+
+ if (bitplane_decoding(v->skip_mb_plane, v->width_mb,
+ v->height_mb, v) < 0)
+ return -1;
+
+ /* Hopefully this is correct for P frames */
+ v->mv_diff_vlc = &vc9_mv_diff_vlc[get_bits(&v->gb, 2)];
+ v->cbpcy_vlc = &vc9_cbpcy_p_vlc[get_bits(&v->gb, 2)];
+
+ if (v->dquant)
+ {
+ av_log(v->avctx, AV_LOG_INFO, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ if (v->vstransform)
+ {
+ v->ttmbf = get_bits(&v->gb, 1);
+ if (v->ttmbf)
+ {
+ v->ttfrm = get_bits(&v->gb, 2);
+ av_log(v->avctx, AV_LOG_INFO, "Transform used: %ix%i\n",
+ (v->ttfrm & 2) ? 4 : 8, (v->ttfrm & 1) ? 4 : 8);
+ }
+ }
+ /* Epilog should be done in caller */
+ return 0;
+}
+
+
+static int standard_decode_picture_header(VC9Context *v)
+{
+ int status = 0;
+
+ if (v->finterpflag) v->interpfrm = get_bits(&v->gb, 1);
+ skip_bits(&v->gb, 2); //framecnt unused
+ if (v->rangered) v->rangeredfrm = get_bits(&v->gb, 1);
+ v->pict_type = get_bits(&v->gb, 1);
+ if (v->avctx->max_b_frames && !v->pict_type)
+ {
+ if (get_bits(&v->gb, 1)) v->pict_type = I_TYPE;
+ else v->pict_type = P_TYPE;
+ }
+ else v->pict_type++; //P_TYPE
+
+ switch (v->pict_type)
+ {
+ case I_TYPE: status = decode_i_picture_header(v); break;
+ case BI_TYPE: status = decode_b_picture_header(v); break;
+ case P_TYPE: status = decode_p_picture_header(v); break;
+ case B_TYPE: status = decode_b_picture_header(v); break;
+ }
+
+ if (status == FRAME_SKIPED)
+ {
+ av_log(v, AV_LOG_INFO, "Skipping frame...\n");
+ return status;
+ }
+
+ /* AC/DC Syntax */
+ v->transacfrm = get_bits(&v->gb, 1);
+ if (v->transacfrm) v->transacfrm += get_bits(&v->gb, 1);
+ if (v->pict_type == I_TYPE || v->pict_type == BI_TYPE)
+ {
+ v->transacfrm2 = get_bits(&v->gb, 1);
+ if (v->transacfrm2) v->transacfrm2 += get_bits(&v->gb, 1);
+ }
+ v->transacdctab = get_bits(&v->gb, 1);
+
+ return 0;
+}
+
+
+#if HAS_ADVANCED_PROFILE
+/******************************************************************************/
+/* Advanced Profile picture header decoding specific functions */
+/******************************************************************************/
+static int advanced_decode_picture_header(VC9Context *v)
+{
+ static const int type_table[4] = { P_TYPE, B_TYPE, I_TYPE, BI_TYPE };
+ int type, i, ret;
+
+ if (v->interlace)
+ {
+ v->fcm = get_bits(&v->gb, 1);
+ if (v->fcm) v->fcm = 2+get_bits(&v->gb, 1);
+ }
+
+ type = get_prefix(&v->gb, 0, 4);
+ if (type > 4 || type < 0) return FRAME_SKIPED;
+ v->pict_type = type_table[type];
+ av_log(v->avctx, AV_LOG_INFO, "AP Frame Type: %i\n", v->pict_type);
+
+ if (v->tfcntrflag) v->tfcntr = get_bits(&v->gb, 8);
+ if (v->broadcast)
+ {
+ if (!v->interlace) v->rptfrm = get_bits(&v->gb, 2);
+ else
+ {
+ v->tff = get_bits(&v->gb, 1);
+ v->rff = get_bits(&v->gb, 1);
+ }
+ }
+
+ if (v->panscanflag)
+ {
+#if 0
+ for (i=0; i<v->numpanscanwin; i++)
+ {
+ v->topleftx[i] = get_bits(&v->gb, 16);
+ v->toplefty[i] = get_bits(&v->gb, 16);
+ v->bottomrightx[i] = get_bits(&v->gb, 16);
+ v->bottomrighty[i] = get_bits(&v->gb, 16);
+ }
+#else
+ skip_bits(&v->gb, 16*4*v->numpanscanwin);
+#endif
+ }
+ v->rndctrl = get_bits(&v->gb, 1);
+ v->uvsamp = get_bits(&v->gb, 1);
+ if (v->finterpflag == 1) v->interpfrm = get_bits(&v->gb, 1);
+
+ switch(v->pict_type)
+ {
+ case I_TYPE: if (decode_i_picture_header(v) < 0) return -1;
+ case P_TYPE: if (decode_p_picture_header(v) < 0) return -1;
+ case BI_TYPE:
+ case B_TYPE: if (decode_b_picture_header(v) < 0) return FRAME_SKIPED;
+ default: break;
+ }
+
+ /* AC/DC Syntax */
+ v->transacfrm = get_bits(&v->gb, 1);
+ if (v->transacfrm) v->transacfrm += get_bits(&v->gb, 1);
+ if (v->pict_type == I_TYPE || v->pict_type == BI_TYPE)
+ {
+ v->transacfrm2 = get_bits(&v->gb, 1);
+ if (v->transacfrm2) v->transacfrm2 += get_bits(&v->gb, 1);
+ }
+ v->transacdctab = get_bits(&v->gb, 1);
+ if (v->pict_type == I_TYPE) vop_dquant_decoding(v);
+
+ return 0;
+}
+#endif
+
+/******************************************************************************/
+/* MacroBlock decoding functions */
+/******************************************************************************/
+static int standard_decode_i_mbs(VC9Context *v)
+{
+ int x, y, ac_pred, cbpcy;
+
+ /* Select ttmb table depending on pq */
+ if (v->pq < 5) v->ttmb_vlc = &vc9_ttmb_vlc[0];
+ else if (v->pq < 13) v->ttmb_vlc = &vc9_ttmb_vlc[1];
+ else v->ttmb_vlc = &vc9_ttmb_vlc[2];
+
+ for (y=0; y<v->height_mb; y++)
+ {
+ for (x=0; x<v->width_mb; x++)
+ {
+ cbpcy = get_vlc2(&v->gb, vc9_cbpcy_i_vlc.table,
+ VC9_CBPCY_I_VLC_BITS, 2);
+ ac_pred = get_bits(&v->gb, 1);
+ //Decode blocks from that mb wrt cbpcy
+ }
+ }
+ return 0;
+}
+
+#define GET_MQUANT() \
+ if (v->dquantfrm) \
+ { \
+ if (v->dqprofile == DQPROFILE_ALL_MBS) \
+ { \
+ if (v->dqbilevel) \
+ { \
+ mquant = (get_bits(&v->gb, 1)) ? v->pq : v->altpq; \
+ } \
+ else \
+ { \
+ mqdiff = get_bits(&v->gb, 3); \
+ if (mqdiff != 7) mquant = v->pq + mqdiff; \
+ else mquant = get_bits(&v->gb, 5); \
+ } \
+ } \
+ }
+
+/* MVDATA decoding from 8.3.5.2 */
+#define GET_MVDATA() \
+ index = 1 + get_vlc2(&v->gb, v->mv_diff_vlc->table, \
+ VC9_MV_DIFF_VLC_BITS, 2); \
+ if (index > 36) \
+ { \
+ mb_has_coeffs = 1; \
+ index -= 37; \
+ } \
+ else mb_has_coeffs = 0; \
+ mb_is_intra = 0; \
+ if (!index) { dmv_x = dmv_y = 0; } \
+ else if (index == 35) \
+ { \
+ dmv_x = get_bits(&v->gb, k_x); \
+ dmv_y = get_bits(&v->gb, k_y); \
+ mb_is_intra = 1; \
+ } \
+ else \
+ { \
+ index1 = index%6; \
+ if (hpel_flag && index1 == 5) val = 1; \
+ else val = 0; \
+ val = get_bits(&v->gb, size_table[index1] - val); \
+ sign = 0 - (val&1); \
+ dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
+ \
+ index1 = index/6; \
+ if (hpel_flag && index1 == 5) val = 1; \
+ else val = 0; \
+ val = get_bits(&v->gb, size_table[index1] - val); \
+ sign = 0 - (val&1); \
+ dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
+ }
+
+static int decode_p_mbs(VC9Context *v)
+{
+ int x, y, current_mb = 0, i; /* MB/Block Position info */
+ int skip_mb_bit = 0, cbpcy; /* MB/B skip */
+ int hybrid_pred, ac_pred; /* Prediction types */
+ int mb_has_coeffs = 1 /* last_flag */, mb_is_intra;
+ int dmv_x, dmv_y; /* Differential MV components */
+ int mv_mode_bit = 0; /* mv_mode_bit: 1MV=0, 4MV=0 */
+ int mqdiff, mquant; /* MB quantization */
+ int tt_block; /* MB Transform type */
+ static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
+ offset_table[6] = { 0, 1, 3, 7, 15, 31 };
+ int k_x, k_y; /* Long MV fixed bitlength */
+ int hpel_flag, intra_flag; /* Some MB properties */
+ int index, index1; /* LUT indices */
+ int val, sign;
+
+ /* Select ttmb table depending on pq */
+ if (v->pq < 5) v->ttmb_vlc = &vc9_ttmb_vlc[0];
+ else if (v->pq < 13) v->ttmb_vlc = &vc9_ttmb_vlc[1];
+ else v->ttmb_vlc = &vc9_ttmb_vlc[2];
+
+ /* Select proper long MV range */
+ switch (v->mvrange)
+ {
+ case 1: k_x = 10; k_y = 9; break;
+ case 2: k_x = 12; k_y = 10; break;
+ case 3: k_x = 13; k_y = 11; break;
+ default: /*case 0 too */ k_x = 9; k_y = 8; break;
+ }
+
+ hpel_flag = v->mv_mode & 1; //MV_PMODE is HPEL
+ k_x -= hpel_flag;
+ k_y -= hpel_flag;
+
+ for (y=0; y<v->height_mb; y++)
+ {
+ for (x=0; x<v->width_mb; x++)
+ {
+ if (v->mv_type_mb_plane[current_mb])
+ mv_mode_bit = get_bits(&v->gb, 1);
+ if (0) //skipmb is rawmode
+ skip_mb_bit = get_bits(&v->gb, 1);
+ if (!mv_mode_bit) /* 1MV mode */
+ {
+ if (!v->skip_mb_plane[current_mb])
+ {
+ GET_MVDATA();
+
+ /* hybrid mv pred, 8.3.5.3.4 */
+ if (v->mv_mode == MV_PMODE_1MV ||
+ v->mv_mode == MV_PMODE_MIXED_MV)
+ hybrid_pred = get_bits(&v->gb, 1);
+ if (mb_is_intra && !mb_has_coeffs)
+ {
+ GET_MQUANT();
+ ac_pred = get_bits(&v->gb, 1);
+ }
+ else if (mb_has_coeffs)
+ {
+ if (mb_is_intra) ac_pred = get_bits(&v->gb, 1);
+ cbpcy = get_vlc2(&v->gb, v->cbpcy_vlc->table,
+ VC9_CBPCY_P_VLC_BITS, 2);
+ GET_MQUANT();
+ }
+ if (!v->ttmbf)
+ v->ttfrm = get_vlc2(&v->gb, v->ttmb_vlc->table,
+ VC9_TTMB_VLC_BITS, 12);
+ //Decode blocks from that mb wrt cbpcy
+ }
+ else //Skipped
+ {
+ /* hybrid mv pred, 8.3.5.3.4 */
+ if (v->mv_mode == MV_PMODE_1MV ||
+ v->mv_mode == MV_PMODE_MIXED_MV)
+ hybrid_pred = get_bits(&v->gb, 1);
+ }
+ } //1MV mode
+ else //4MV mode
+ {
+ if (!v->skip_mb_plane[current_mb] /* unskipped MB */)
+ {
+ cbpcy = get_vlc2(&v->gb, v->cbpcy_vlc->table,
+ VC9_CBPCY_P_VLC_BITS, 2);
+ for (i=0; i<4; i++) //For all 4 Y blocks
+ {
+ if (cbpcy & (1<<6) /* cbpcy set for this block */)
+ {
+ GET_MVDATA();
+ }
+ if (v->mv_mode == MV_PMODE_MIXED_MV /* Hybrid pred */)
+ hybrid_pred = get_bits(&v->gb, 1);
+ GET_MQUANT();
+ if (mb_is_intra /* One of the 4 blocks is intra */ &&
+ index /* non-zero pred for that block */)
+ ac_pred = get_bits(&v->gb, 1);
+ if (!v->ttmbf)
+ tt_block = get_vlc2(&v->gb, v->ttmb_vlc->table,
+ VC9_TTMB_VLC_BITS, 12);
+
+ /* TODO: Process blocks wrt cbpcy */
+
+ /* Prepare cbpcy for next block */
+ cbpcy <<= 1;
+ }
+ }
+ else //Skipped MB
+ {
+ for (i=0; i<4; i++) //All 4 Y blocks
+ {
+ if (v->mv_mode == MV_PMODE_MIXED_MV /* Hybrid pred */)
+ hybrid_pred = get_bits(&v->gb, 1);
+
+ /* FIXME: do something */
+ }
+ }
+ }
+ }
+ current_mb++;
+ }
+ return 0;
+}
+
+static int decode_b_mbs(VC9Context *v)
+{
+ int x, y, current_mb = 0 , last_mb = v->height_mb*v->width_mb,
+ i /* MB / B postion information */;
+ int direct_b_bit = 0, skip_mb_bit = 0;
+ int ac_pred;
+ int b_mv1 = 0, b_mv2 = 0, b_mv_type = 0;
+ int mquant, mqdiff; /* MB quant stuff */
+ int tt_block; /* Block transform type */
+
+ for (y=0; y<v->height_mb; y++)
+ {
+ for (x=0; x<v->width_mb; x++)
+ {
+ if (v->direct_mb_plane[current_mb])
+ direct_b_bit = get_bits(&v->gb, 1);
+ if (1 /* Skip mode is raw */)
+ {
+ /* FIXME getting tired commenting */
+#if 0
+ skip_mb_bit = get_bits(&v->gb, n); //vlc
+#endif
+ }
+ if (!direct_b_bit)
+ {
+ if (skip_mb_bit)
+ {
+ /* FIXME getting tired commenting */
+#if 0
+ b_mv_type = get_bits(&v->gb, n); //vlc
+#endif
+ }
+ else
+ {
+ /* FIXME getting tired commenting */
+#if 0
+ b_mv1 = get_bits(&v->gb, n); //VLC
+#endif
+ if (1 /* b_mv1 isn't intra */)
+ {
+ /* FIXME: actually read it */
+ b_mv_type = 0; //vlc
+ }
+ }
+ }
+ if (!skip_mb_bit)
+ {
+ if (b_mv1 != last_mb)
+ {
+ GET_MQUANT();
+ if (1 /* intra mb */)
+ ac_pred = get_bits(&v->gb, 1);
+ }
+ else
+ {
+ if (1 /* forward_mb is interpolate */)
+ {
+ /* FIXME: actually read it */
+ b_mv2 = 0; //vlc
+ }
+ if (1 /* b_mv2 isn't the last */)
+ {
+ if (1 /* intra_mb */)
+ ac_pred = get_bits(&v->gb, 1);
+ GET_MQUANT();
+ }
+ }
+ }
+ //End1
+ /* FIXME getting tired, commenting */
+#if 0
+ if (v->ttmbf)
+ v->ttmb = get_bits(&v->gb, n); //vlc
+#endif
+ }
+ //End2
+ for (i=0; i<6; i++)
+ {
+ /* FIXME: process the block */
+ }
+
+ current_mb++;
+ }
+ return 0;
+}
+
+#if HAS_ADVANCED_PROFILE
+static int advanced_decode_i_mbs(VC9Context *v)
+{
+ int i, x, y, cbpcy, mqdiff, absmq, mquant, ac_pred, condover,
+ current_mb = 0, over_flags_mb = 0;
+
+ for (y=0; y<v->height_mb; y++)
+ {
+ for (x=0; x<v->width_mb; x++)
+ {
+ if (v->ac_pred_plane[i])
+ ac_pred = get_bits(&v->gb, 1);
+ if (condover == 3 && v->over_flags_plane)
+ over_flags_mb = get_bits(&v->gb, 1);
+ GET_MQUANT();
+ }
+ current_mb++;
+ }
+ return 0;
+}
+#endif
+
+static int vc9_decode_init(AVCodecContext *avctx)
+{
+ VC9Context *v = avctx->priv_data;
+ GetBitContext gb;
+
+ if (!avctx->extradata_size || !avctx->extradata) return -1;
+ avctx->pix_fmt = PIX_FMT_YUV420P;
+ v->avctx = avctx;
+
+ if (init_common(v) < 0) return -1;
+
+ if (avctx->codec_id == CODEC_ID_WMV3)
+ {
+ int count = 0;
+
+ // looks like WMV3 has a sequence header stored in the extradata
+ // advanced sequence header may be before the first frame
+ // the last byte of the extradata is a version number, 1 for the
+ // samples we can decode
+
+ init_get_bits(&gb, avctx->extradata, avctx->extradata_size);
+
+ decode_sequence_header(avctx, &gb);
+
+ count = avctx->extradata_size*8 - get_bits_count(&gb);
+ if (count>0)
+ {
+ av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
+ count, get_bits(&gb, count));
+ }
+ else
+ {
+ av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
+ }
+ }
+
+ /* Done with header parsing */
+ //FIXME I feel like this is wrong
+ v->width_mb = (avctx->coded_width+15)>>4;
+ v->height_mb = (avctx->coded_height+15)>>4;
+
+ /* Allocate mb bitplanes */
+ v->mv_type_mb_plane = (uint8_t *)av_malloc(v->width_mb*v->height_mb);
+ if (!v->mv_type_mb_plane) return -1;
+ v->skip_mb_plane = (uint8_t *)av_malloc(v->width_mb*v->height_mb);
+ if (!v->skip_mb_plane) return -1;
+ v->direct_mb_plane = (uint8_t *)av_malloc(v->width_mb*v->height_mb);
+ if (!v->direct_mb_plane) return -1;
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile > PROFILE_MAIN)
+ {
+ v->over_flags_plane = (uint8_t *)av_malloc(v->width_mb*v->height_mb);
+ if (!v->over_flags_plane) return -1;
+ v->ac_pred_plane = (uint8_t *)av_malloc(v->width_mb*v->height_mb);
+ if (!v->ac_pred_plane) return -1;
+ }
+#endif
+
+ return 0;
+}
+
+static int vc9_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ VC9Context *v = avctx->priv_data;
+ int ret = FRAME_SKIPED, len, start_code;
+ AVFrame *pict = data;
+ uint8_t *tmp_buf;
+ v->avctx = avctx;
+
+ //buf_size = 0 -> last frame
+ if (!buf_size) return 0;
+
+ len = avpicture_get_size(avctx->pix_fmt, avctx->width,
+ avctx->height);
+ tmp_buf = (uint8_t *)av_mallocz(len);
+ avpicture_fill((AVPicture *)pict, tmp_buf, avctx->pix_fmt,
+ avctx->width, avctx->height);
+
+ if (avctx->codec_id == CODEC_ID_WMV3)
+ {
+ init_get_bits(&v->gb, buf, buf_size*8);
+ av_log(avctx, AV_LOG_INFO, "Frame: %i bits to decode\n", buf_size*8);
+
+#if HAS_ADVANCED_PROFILE
+ if (v->profile > PROFILE_MAIN)
+ {
+ if (advanced_decode_picture_header(v) == FRAME_SKIPED) return buf_size;
+ switch(v->pict_type)
+ {
+ case I_TYPE: ret = advanced_decode_i_mbs(v); break;
+ case P_TYPE: ret = decode_p_mbs(v); break;
+ case B_TYPE:
+ case BI_TYPE: ret = decode_b_mbs(v); break;
+ default: ret = FRAME_SKIPED;
+ }
+ if (ret == FRAME_SKIPED) return buf_size; //We ignore for now failures
+ }
+ else
+#endif
+ {
+ if (standard_decode_picture_header(v) == FRAME_SKIPED) return buf_size;
+ switch(v->pict_type)
+ {
+ case I_TYPE: ret = standard_decode_i_mbs(v); break;
+ case P_TYPE: ret = decode_p_mbs(v); break;
+ case B_TYPE:
+ case BI_TYPE: ret = decode_b_mbs(v); break;
+ default: ret = FRAME_SKIPED;
+ }
+ if (ret == FRAME_SKIPED) return buf_size;
+ }
+
+ /* Size of the output data = image */
+ av_log(avctx, AV_LOG_DEBUG, "Consumed %i/%i bits\n",
+ get_bits_count(&v->gb), buf_size*8);
+ }
+ else
+ {
+#if 0
+ // search for IDU's
+ // FIXME
+ uint32_t scp = 0;
+ int scs = 0, i = 0;
+
+ while (i < buf_size)
+ {
+ for (; i < buf_size && scp != 0x000001; i++)
+ scp = ((scp<<8)|buf[i])&0xffffff;
+
+ if (scp != 0x000001)
+ break; // eof ?
+
+ scs = buf[i++];
+
+ init_get_bits(&v->gb, buf+i, (buf_size-i)*8);
+
+ switch(scs)
+ {
+ case 0xf:
+ decode_sequence_header(avctx, &v->gb);
+ break;
+ // to be finished
+ }
+
+ i += get_bits_count(&v->gb)*8;
+ }
+#else
+ av_abort();
+#endif
+ }
+
+ *data_size = len;
+
+ /* Fake consumption of all data */
+ return buf_size; //Number of bytes consumed
+}
+
+static int vc9_decode_end(AVCodecContext *avctx)
+{
+ VC9Context *v = avctx->priv_data;
+
+#if HAS_ADVANCED_PROFILE
+ if (v->hrd_rate) av_free(v->hrd_rate);
+ if (v->hrd_buffer) av_free(v->hrd_buffer);
+#endif
+ if (v->mv_type_mb_plane) av_free(v->mv_type_mb_plane);
+ if (v->skip_mb_plane) av_free(v->skip_mb_plane);
+ if (v->direct_mb_plane) av_free(v->direct_mb_plane);
+ return 0;
+}
+
+AVCodec vc9_decoder = {
+ "vc9",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_VC9,
+ sizeof(VC9Context),
+ vc9_decode_init,
+ NULL,
+ vc9_decode_end,
+ vc9_decode_frame,
+ 0,
+ NULL
+};
+
+AVCodec wmv3_decoder = {
+ "wmv3",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_WMV3,
+ sizeof(VC9Context),
+ vc9_decode_init,
+ NULL,
+ vc9_decode_end,
+ vc9_decode_frame,
+ 0,
+ NULL
+};
diff --git a/libavcodec/vc9data.h b/libavcodec/vc9data.h
new file mode 100644
index 0000000000..c3826f1a63
--- /dev/null
+++ b/libavcodec/vc9data.h
@@ -0,0 +1,373 @@
+/**
+ * @file vc9data.h
+ * VC9 tables.
+ */
+
+#ifndef VC9DATA_H
+#define VC9DATA_H
+
+/* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */
+const int16_t vc9_bfraction_lut[23] = {
+ 420 /*1/2*/, 280 /*1/3*/, 560 /*2/3*/, 210 /*1/4*/,
+ 630 /*3/4*/, 168 /*1/5*/, 336 /*2/5*/,
+ 504 /*3/5*/, 672 /*4/5*/, 140 /*1/6*/, 700 /*5/6*/,
+ 120 /*1/7*/, 240 /*2/7*/, 360 /*3/7*/, 480 /*4/7*/,
+ 600 /*5/7*/, 720 /*6/7*/, 105 /*1/8*/, 315 /*3/8*/,
+ 525 /*5/8*/, 735 /*7/8*/,
+ -1 /*inv.*/, 0 /*BI fm*/
+};
+const uint8_t vc9_bfraction_bits[23] = {
+ 3, 3, 3, 3,
+ 3, 3, 3,
+ 7, 7, 7, 7,
+ 7, 7, 7, 7,
+ 7, 7, 7, 7,
+ 7, 7,
+ 7, 7
+};
+const uint8_t vc9_bfraction_codes[23] = {
+ 0, 1, 2, 3,
+ 4, 5, 6,
+ 112, 113, 114, 115,
+ 116, 117, 118, 119,
+ 120, 121, 122, 123,
+ 124, 125,
+ 126, 127
+};
+
+//Same as H.264
+static const AVRational vc9_pixel_aspect[16]={
+ {0, 1},
+ {1, 1},
+ {12, 11},
+ {10, 11},
+ {16, 11},
+ {40, 33},
+ {24, 11},
+ {20, 11},
+ {32, 11},
+ {80, 33},
+ {18, 11},
+ {15, 11},
+ {64, 33},
+ {160, 99},
+ {0, 1},
+ {0, 1}
+};
+
+/* BitPlane IMODE - such a small table... */
+static const uint8_t vc9_imode_codes[7] = {
+ 0, 2, 1, 3, 1, 2, 3
+};
+static const uint8_t vc9_imode_bits[7] = {
+ 4, 2, 3, 2, 4, 3, 3
+};
+
+/* Normal-2 imode */
+static const uint8_t vc9_norm2_codes[4] = {
+ 0, 4, 5, 3
+};
+static const uint8_t vc9_norm2_bits[4] = {
+ 1, 3, 3, 2
+};
+
+/* 4MV Block pattern VLC tables */
+static const uint8_t vc9_4mv_block_pattern_codes[4][16] = {
+ { 14, 58, 59, 25, 12, 26, 15, 15, 13, 24, 27, 0, 28, 1, 2, 2},
+ { 8, 18, 19, 4, 20, 5, 30, 11, 21, 31, 6, 12, 7, 13, 14, 0},
+ { 15, 6, 7, 2, 8, 3, 28, 9, 10, 29, 4, 11, 5, 12, 13, 0},
+ { 0, 11, 12, 4, 13, 5, 30, 16, 14, 31, 6, 17, 7, 18, 19, 19}
+};
+static const uint8_t vc9_4mv_block_pattern_bits[4][16] = {
+ { 5, 6, 6, 5, 5, 5, 5, 4, 5, 5, 5, 3, 5, 3, 3, 2},
+ { 4, 5, 5, 4, 5, 4, 5, 4, 5, 5, 4, 4, 4, 4, 4, 2},
+ { 4, 4, 4, 4, 4, 4, 5, 4, 4, 5, 4, 4, 4, 4, 4, 3},
+ { 2, 4, 4, 4, 4, 4, 5, 5, 4, 5, 4, 5, 4, 5, 5, 4}
+};
+
+/* I-Picture CBPCY VLC tables */
+static const uint16_t vc9_cbpcy_i_codes[64] = {
+ 1, 23, 9, 5, 6, 71, 32, 16,
+ 2, 124, 58, 29, 2, 236, 119, 0,
+ 3, 183, 44, 19, 1, 360, 70, 63,
+ 30, 1810, 181, 66, 34, 453, 286, 135,
+ 6, 3, 30, 28, 18, 904, 68, 112,
+ 31, 574, 57, 142, 1, 454, 182, 69,
+ 20, 575, 125, 24, 7, 455, 134, 25,
+ 21, 475, 2, 70, 13, 1811, 474, 361
+};
+static const uint8_t vc9_cbpcy_i_bits[64] = {
+ 1, 6, 5, 5, 5, 9, 7, 7, 5, 9, 7, 7, 6, 9, 8, 8,
+ 5, 9, 7, 7, 6, 10, 8, 8, 6, 13, 9, 8, 7, 11, 10, 9,
+ 4, 9, 7, 6, 7, 12, 9, 9, 6, 11, 8, 9, 7, 11, 9, 9,
+ 6, 11, 9, 9, 7, 11, 9, 9, 6, 10, 9, 9, 8, 13, 10, 10
+};
+
+/* P-Picture CBPCY VLC tables */
+static const uint16_t vc9_cbpcy_p_codes[4][64] = {
+ {
+ 0, 1, 1, 4, 5, 1, 12, 4, 13, 14, 10, 11, 12, 7, 13, 2,
+ 15, 1, 96, 1, 49, 97, 2, 100, 3, 4, 5, 101, 102, 52, 53, 4,
+ 6, 7, 54, 103, 8, 9, 10, 110, 11, 12, 111, 56, 114, 58, 115, 5,
+ 13, 7, 8, 9, 10, 11, 12, 30, 13, 14, 15, 118, 119, 62, 63, 3
+ },
+ {
+ 0, 1, 2, 1, 3, 1, 16, 17, 5, 18, 12, 19, 13, 1, 28, 58,
+ 1, 1, 1, 2, 3, 2, 3, 236, 237, 4, 5, 238, 6, 7, 239, 8,
+ 9, 240, 10, 11, 121, 122, 12, 13, 14, 15, 241, 246, 16, 17, 124, 63,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 247, 125
+ },
+ {
+ 0, 1, 2, 3, 2, 3, 1, 4, 5, 24, 7, 13, 16, 17, 9, 5,
+ 25, 1, 1, 1, 2, 3, 96, 194, 1, 2, 98, 99, 195, 200, 101, 26,
+ 201, 102, 412, 413, 414, 54, 220, 111, 221, 3, 224, 113, 225, 114, 230, 29,
+ 231, 415, 240, 4, 241, 484, 5, 243, 3, 244, 245, 485, 492, 493, 247, 31
+ },
+ {
+ 0, 1, 1, 1, 2, 2, 3, 4, 3, 5, 6, 7, 8, 9, 10, 11,
+ 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 28, 29, 30, 31
+ }
+};
+static const uint8_t vc9_cbpcy_p_bits[4][64] = {
+ {
+ 13, 6, 5, 6, 6, 7, 7, 5, 7, 7, 6, 6, 6, 5, 6, 3,
+ 7, 8, 8, 13, 7, 8, 13, 8, 13, 13, 13, 8, 8, 7, 7, 3,
+ 13, 13, 7, 8, 13, 13, 13, 8, 13, 13, 8, 7, 8, 7, 8, 3,
+ 13, 12, 12, 12, 12, 12, 12, 6, 12, 12, 12, 8, 8, 7, 7, 2
+ },
+ {
+ 14, 3, 3, 5, 3, 4, 5, 5, 3, 5, 4, 5, 4, 6, 5, 6,
+ 8, 14, 13, 8, 8, 13, 13, 8, 8, 13, 13, 8, 13, 13, 8, 13,
+ 13, 8, 13, 13, 7, 7, 13, 13, 13, 13, 8, 8, 13, 13, 7, 6,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 8, 7
+ },
+ {
+ 13, 5, 5, 5, 4, 4, 6, 4, 4, 6, 4, 5, 5, 5, 4, 3,
+ 6, 8, 10, 9, 8, 8, 7, 8, 13, 13, 7, 7, 8, 8, 7, 5,
+ 8, 7, 9, 9, 9, 6, 8, 7, 8, 13, 8, 7, 8, 7, 8, 5,
+ 8, 9, 8, 13, 8, 9, 13, 8, 12, 8, 8, 9, 9, 9, 8, 5
+ },
+ {
+ 9, 2, 3, 9, 2, 9, 9, 9, 2, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8
+ }
+};
+
+/* MacroBlock Transform Type
+ * 8x8:B
+ * 8x4:B:btm 8x4:B:top 8x4:B:both,
+ * 4x8:B:right 4x8:B:left 4x8:B:both
+ * 4x4:B 8x8:MB
+ * 8x4:MB:btm 8x4:MB:top 8x4,MB,both
+ * 4x8,MB,right 4x8,MB,left
+ * 4x4,MB */
+static const uint16_t vc9_ttmb_codes[3][16] = {
+ {
+ 0x0003,
+ 0x002E, 0x005F, 0x0000,
+ 0x0016, 0x0015, 0x0001,
+ 0x0004, 0x0014,
+ 0x02F1, 0x0179, 0x017B,
+ 0x0BC0, 0x0BC1, 0x05E1,
+ 0x017A
+ },
+ {
+ 0x0006,
+ 0x0006, 0x0003, 0x0007,
+ 0x000F, 0x000E, 0x0000,
+ 0x0002, 0x0002,
+ 0x0014, 0x0011, 0x000B,
+ 0x0009, 0x0021, 0x0015,
+ 0x0020
+ },
+ {
+ 0x0006,
+ 0x0000, 0x000E, 0x0005,
+ 0x0002, 0x0003, 0x0003,
+ 0x000F, 0x0002,
+ 0x0081, 0x0011, 0x0009,
+ 0x0101, 0x0041, 0x0011,
+ 0x0100
+ }
+};
+
+static const uint8_t vc9_ttmb_bits[3][16] = {
+ {
+ 2,
+ 6, 7, 2,
+ 5, 5, 2,
+ 3, 5,
+ 10, 9, 9,
+ 12, 12, 11,
+ 9
+ },
+ {
+ 3,
+ 4, 4, 4,
+ 4, 4, 3,
+ 3, 2,
+ 7, 7, 6,
+ 6, 8, 7,
+ 8
+ },
+ {
+ 3,
+ 3, 4, 5,
+ 3, 3, 4,
+ 4, 2,
+ 9, 7, 6,
+ 10, 9, 7,
+ 11
+ }
+};
+
+
+/* MV differential tables, p265 */
+static const uint16_t vc9_mv_diff_codes[4][73] = {
+ {
+ 0, 2, 3, 8, 576, 3, 2, 6,
+ 5, 577, 578, 7, 8, 9, 40, 19,
+ 37, 82, 21, 22, 23, 579, 580, 166,
+ 96, 167, 49, 194, 195, 581, 582, 583,
+ 292, 293, 294, 13, 2, 7, 24, 50,
+ 102, 295, 13, 7, 8, 18, 50, 103,
+ 38, 20, 21, 22, 39, 204, 103, 23,
+ 24, 25, 104, 410, 105, 106, 107, 108,
+ 109, 220, 411, 442, 222, 443, 446, 447,
+ 7 /* 73 elements */
+ },
+ {
+ 0, 4, 5, 3, 4, 3, 4, 5,
+ 20, 6, 21, 44, 45, 46, 3008, 95,
+ 112, 113, 57, 3009, 3010, 116, 117, 3011,
+ 118, 3012, 3013, 3014, 3015, 3016, 3017, 3018,
+ 3019, 3020, 3021, 3022, 1, 4, 15, 160,
+ 161, 41, 6, 11, 42, 162, 43, 119,
+ 56, 57, 58, 163, 236, 237, 3023, 119,
+ 120, 242, 122, 486, 1512, 487, 246, 494,
+ 1513, 495, 1514, 1515, 1516, 1517, 1518, 1519,
+ 31 /* 73 elements */
+ },
+ {
+ 0, 512, 513, 514, 515, 2, 3, 258,
+ 259, 260, 261, 262, 263, 264, 265, 266,
+ 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 278, 279, 280, 281, 282,
+ 283, 284, 285, 286, 1, 5, 287, 288,
+ 289, 290, 6, 7, 291, 292, 293, 294,
+ 295, 296, 297, 298, 299, 300, 301, 302,
+ 303, 304, 305, 306, 307, 308, 309, 310,
+ 311, 312, 313, 314, 315, 316, 317, 318,
+ 319 /* 73 elements */
+ },
+ {
+ 0, 1, 1, 2, 3, 4, 1, 5,
+ 4, 3, 5, 8, 6, 9, 10, 11,
+ 12, 7, 104, 14, 105, 4, 10, 15,
+ 11, 6, 14, 8, 106, 107, 108, 15,
+ 109, 9, 55, 10, 1, 2, 1, 2,
+ 3, 12, 6, 2, 6, 7, 28, 7,
+ 15, 8, 5, 18, 29, 152, 77, 24,
+ 25, 26, 39, 108, 13, 109, 55, 56,
+ 57, 116, 11, 153, 234, 235, 118, 119,
+ 15 /* 73 elements */
+ }
+};
+static const uint8_t vc9_mv_diff_bits[4][73] = {
+ {
+ 6, 7, 7, 8, 14, 6, 5, 6, 7, 14, 14, 6, 6, 6, 8, 9,
+ 10, 9, 7, 7, 7, 14, 14, 10, 9, 10, 8, 10, 10, 14, 14, 14,
+ 13, 13, 13, 6, 3, 5, 6, 8, 9, 13, 5, 4, 4, 5, 7, 9,
+ 6, 5, 5, 5, 6, 9, 8, 5, 5, 5, 7, 10, 7, 7, 7, 7,
+ 7, 8, 10, 9, 8, 9, 9, 9, 3 /* 73 elements */
+ },
+ {
+ 5, 7, 7, 6, 6, 5, 5, 6, 7, 5, 7, 8, 8, 8, 14, 9,
+ 9, 9, 8, 14, 14, 9, 9, 14, 9, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 2, 3, 6, 8, 8, 6, 3, 4, 6, 8, 6, 9,
+ 6, 6, 6, 8, 8, 8, 14, 7, 7, 8, 7, 9, 13, 9, 8, 9,
+ 13, 9, 13, 13, 13, 13, 13, 13, 5 /* 73 elements */
+
+ },
+ {
+ 3, 12, 12, 12, 12, 3, 4, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+ 11, 11, 11, 11, 1, 5, 11, 11, 11, 11, 4, 4, 11, 11, 11, 11,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11 /* 73 elements */
+ },
+ {
+ 15, 11, 15, 15, 15, 15, 12, 15, 12, 11, 12, 12, 15, 12, 12, 12,
+ 12, 15, 15, 12, 15, 10, 11, 12, 11, 10, 11, 10, 15, 15, 15, 11,
+ 15, 10, 14, 10, 4, 4, 5, 7, 8, 9, 5, 3, 4, 5, 6, 8,
+ 5, 4, 3, 5, 6, 8, 7, 5, 5, 5, 6, 7, 9, 7, 6, 6,
+ 6, 7, 10, 8, 8, 8, 7, 7, 4 /* 73 elements */
+ }
+};
+
+/* DC luma differentials low+hi-mo, p217 */
+static const uint32_t vc9_luma_dc_codes[2][120] = {
+ {
+ 1, 1, 1, 1, 5, 7, 8, 12,
+ 0, 2, 18, 26, 3, 7, 39, 55,
+ 5, 76, 108, 109, 8, 25, 155, 27,
+ 154, 19, 52, 53, 97, 72, 196, 74,
+ 198, 199, 146, 395, 147, 387, 386, 150,
+ 151, 384, 788, 789, 1541, 1540, 1542, 3086,
+ 197581, 197577, 197576, 197578, 197579, 197580, 197582, 197583,
+ 197584, 197585, 197586, 197587, 197588, 197589, 197590, 197591,
+ 197592, 197593, 197594, 197595, 197596, 197597, 197598, 197599,
+ 197600, 197601, 197602, 197603, 197604, 197605, 197606, 197607,
+ 197608, 197609, 197610, 197611, 197612, 197613, 197614, 197615,
+ 197616, 197617, 197618, 197619, 197620, 197621, 197622, 197623,
+ 197624, 197625, 197626, 197627, 197628, 197629, 197630, 197631,
+ 395136, 395137, 395138, 395139, 395140, 395141, 395142, 395143,
+ 395144, 395145, 395146, 395147, 395148, 395149, 395150, 395151
+ },
+ {
+ 2, 3, 3, 2, 5, 1, 3, 8,
+ 0, 5, 13, 15, 19, 8, 24, 28,
+ 36, 4, 6, 18, 50, 59, 74, 75,
+ 11, 38, 39, 102, 116, 117, 20, 28,
+ 31, 29, 43, 61, 413, 415, 84, 825,
+ 824, 829, 171, 241, 1656, 242, 480, 481,
+ 340, 3314, 972, 683, 6631, 974, 6630, 1364,
+ 1951, 1365, 3901, 3895, 3900, 3893, 7789, 7784,
+ 15576, 15571, 15577, 31140, 996538, 996532, 996533, 996534,
+ 996535, 996536, 996537, 996539, 996540, 996541, 996542, 996543,
+ 1993024, 1993025, 1993026, 1993027, 1993029, 1993029, 1993030, 1993031,
+ 1993032, 1993033, 1993034, 1993035, 1993036, 1993037, 1993038, 1993039,
+ 1993040, 1993041, 1993042, 1993043, 1993044, 1993045, 1993046, 1993047,
+ 1993048, 1993049, 1993050, 1993051, 1993052, 1993053, 1993054, 1993055,
+ 1993056, 1993057, 1993058, 1993059, 1993060, 1993061, 1993062, 1993063
+ }
+};
+static const uint8_t vc9_luma_dc_bits[2][120] = {
+ {
+ 1, 2, 4, 5, 5, 5, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
+ 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 12, 13, 13, 13,
+ 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 16, 16, 16, 17,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24 /* lowmo, 120 values */
+ },
+ {
+ 2, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7,
+ 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10,
+ 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14,
+ 14, 14, 15, 15, 15, 15, 15, 16, 16, 16, 17, 17, 17, 17, 18, 18,
+ 19, 19, 19, 20, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26 /* himo, 120 values */
+ }
+};
+
+/* DC chroma differentials low+hi-mo */
+
+#endif /* VC9DATA_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 19:01:20 +0000