/*
* Copyright (C) 2003-2004 the ffmpeg project
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file vp3.c
+ * @file libavcodec/vp3.c
* On2 VP3 Video Decoder
*
* VP3 Video Decoder by Mike Melanson (mike at multimedia.cx)
* For more information about the VP3 coding process, visit:
- * http://multimedia.cx/
+ * http://wiki.multimedia.cx/index.php?title=On2_VP3
*
* Theora decoder by Alex Beregszaszi
*/
#include <string.h>
#include <unistd.h>
-#include "common.h"
#include "avcodec.h"
#include "dsputil.h"
-#include "mpegvideo.h"
+#include "get_bits.h"
#include "vp3data.h"
+#include "xiph.h"
#define FRAGMENT_PIXELS 8
-/*
- * Debugging Variables
- *
- * Define one or more of the following compile-time variables to 1 to obtain
- * elaborate information about certain aspects of the decoding process.
- *
- * KEYFRAMES_ONLY: set this to 1 to only see keyframes (VP3 slideshow mode)
- * DEBUG_VP3: high-level decoding flow
- * DEBUG_INIT: initialization parameters
- * DEBUG_DEQUANTIZERS: display how the dequanization tables are built
- * DEBUG_BLOCK_CODING: unpacking the superblock/macroblock/fragment coding
- * DEBUG_MODES: unpacking the coding modes for individual fragments
- * DEBUG_VECTORS: display the motion vectors
- * DEBUG_TOKEN: display exhaustive information about each DCT token
- * DEBUG_VLC: display the VLCs as they are extracted from the stream
- * DEBUG_DC_PRED: display the process of reversing DC prediction
- * DEBUG_IDCT: show every detail of the IDCT process
- */
-
-#define KEYFRAMES_ONLY 0
-
-#define DEBUG_VP3 0
-#define DEBUG_INIT 0
-#define DEBUG_DEQUANTIZERS 0
-#define DEBUG_BLOCK_CODING 0
-#define DEBUG_MODES 0
-#define DEBUG_VECTORS 0
-#define DEBUG_TOKEN 0
-#define DEBUG_VLC 0
-#define DEBUG_DC_PRED 0
-#define DEBUG_IDCT 0
-
-#if DEBUG_VP3
-#define debug_vp3(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_vp3(const char *format, ...) { }
-#endif
-
-#if DEBUG_INIT
-#define debug_init(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_init(const char *format, ...) { }
-#endif
-
-#if DEBUG_DEQUANTIZERS
-#define debug_dequantizers(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_dequantizers(const char *format, ...) { }
-#endif
-
-#if DEBUG_BLOCK_CODING
-#define debug_block_coding(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_block_coding(const char *format, ...) { }
-#endif
-
-#if DEBUG_MODES
-#define debug_modes(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_modes(const char *format, ...) { }
-#endif
-
-#if DEBUG_VECTORS
-#define debug_vectors(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_vectors(const char *format, ...) { }
-#endif
-
-#if DEBUG_TOKEN
-#define debug_token(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_token(const char *format, ...) { }
-#endif
-
-#if DEBUG_VLC
-#define debug_vlc(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_vlc(const char *format, ...) { }
-#endif
-
-#if DEBUG_DC_PRED
-#define debug_dc_pred(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_dc_pred(const char *format, ...) { }
-#endif
-
-#if DEBUG_IDCT
-#define debug_idct(args...) av_log(NULL, AV_LOG_DEBUG, ## args)
-#else
-static inline void debug_idct(const char *format, ...) { }
-#endif
-
typedef struct Coeff {
struct Coeff *next;
DCTELEM coeff;
/* this is the macroblock that the fragment belongs to */
uint16_t macroblock;
uint8_t coding_method;
- uint8_t coeff_count;
int8_t motion_x;
int8_t motion_y;
} Vp3Fragment;
#define MODE_COPY 8
/* There are 6 preset schemes, plus a free-form scheme */
-static int ModeAlphabet[7][CODING_MODE_COUNT] =
+static const int ModeAlphabet[6][CODING_MODE_COUNT] =
{
- /* this is the custom scheme */
- { 0, 0, 0, 0, 0, 0, 0, 0 },
-
/* scheme 1: Last motion vector dominates */
- { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
+ { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
MODE_INTER_PLUS_MV, MODE_INTER_NO_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_INTRA, MODE_USING_GOLDEN,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 2 */
- { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
+ { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
MODE_INTER_NO_MV, MODE_INTER_PLUS_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_INTRA, MODE_USING_GOLDEN,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 3 */
- { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
+ { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
MODE_INTER_PRIOR_LAST, MODE_INTER_NO_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_INTRA, MODE_USING_GOLDEN,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 4 */
- { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
+ { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
MODE_INTER_NO_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_INTRA, MODE_USING_GOLDEN,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 5: No motion vector dominates */
- { MODE_INTER_NO_MV, MODE_INTER_LAST_MV,
+ { MODE_INTER_NO_MV, MODE_INTER_LAST_MV,
MODE_INTER_PRIOR_LAST, MODE_INTER_PLUS_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_INTRA, MODE_USING_GOLDEN,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 6 */
- { MODE_INTER_NO_MV, MODE_USING_GOLDEN,
+ { MODE_INTER_NO_MV, MODE_USING_GOLDEN,
MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTER_PLUS_MV, MODE_INTRA,
+ MODE_INTER_PLUS_MV, MODE_INTRA,
MODE_GOLDEN_MV, MODE_INTER_FOURMV },
};
DSPContext dsp;
int flipped_image;
+ int qis[3];
+ int nqis;
int quality_index;
int last_quality_index;
int superblock_count;
- int superblock_width;
- int superblock_height;
int y_superblock_width;
int y_superblock_height;
int c_superblock_width;
int fragment_height;
Vp3Fragment *all_fragments;
+ uint8_t *coeff_counts;
Coeff *coeffs;
Coeff *next_coeff;
- int u_fragment_start;
- int v_fragment_start;
-
+ int fragment_start[3];
+
ScanTable scantable;
-
+
/* tables */
uint16_t coded_dc_scale_factor[64];
uint32_t coded_ac_scale_factor[64];
- uint16_t coded_intra_y_dequant[64];
- uint16_t coded_intra_c_dequant[64];
- uint16_t coded_inter_dequant[64];
+ uint8_t base_matrix[384][64];
+ uint8_t qr_count[2][3];
+ uint8_t qr_size [2][3][64];
+ uint16_t qr_base[2][3][64];
- /* this is a list of indices into the all_fragments array indicating
+ /* this is a list of indexes into the all_fragments array indicating
* which of the fragments are coded */
int *coded_fragment_list;
int coded_fragment_list_index;
- int pixel_addresses_inited;
+ int pixel_addresses_initialized;
VLC dc_vlc[16];
VLC ac_vlc_1[16];
/* these arrays need to be on 16-byte boundaries since SSE2 operations
* index into them */
- int16_t __align16 intra_y_dequant[64];
- int16_t __align16 intra_c_dequant[64];
- int16_t __align16 inter_dequant[64];
+ DECLARE_ALIGNED_16(int16_t, qmat[2][4][64]); //<qmat[is_inter][plane]
/* This table contains superblock_count * 16 entries. Each set of 16
- * numbers corresponds to the fragment indices 0..15 of the superblock.
+ * numbers corresponds to the fragment indexes 0..15 of the superblock.
* An entry will be -1 to indicate that no entry corresponds to that
* index. */
int *superblock_fragments;
/* This table contains superblock_count * 4 entries. Each set of 4
- * numbers corresponds to the macroblock indices 0..3 of the superblock.
+ * numbers corresponds to the macroblock indexes 0..3 of the superblock.
* An entry will be -1 to indicate that no entry corresponds to that
* index. */
int *superblock_macroblocks;
/* This table contains macroblock_count * 6 entries. Each set of 6
- * numbers corresponds to the fragment indices 0..5 which comprise
+ * numbers corresponds to the fragment indexes 0..5 which comprise
* the macroblock (4 Y fragments and 2 C fragments). */
int *macroblock_fragments;
- /* This is an array that indicates how a particular macroblock
+ /* This is an array that indicates how a particular macroblock
* is coded. */
unsigned char *macroblock_coding;
int last_coded_c_fragment;
uint8_t edge_emu_buffer[9*2048]; //FIXME dynamic alloc
- uint8_t qscale_table[2048]; //FIXME dynamic alloc (width+15)/16
+ int8_t qscale_table[2048]; //FIXME dynamic alloc (width+15)/16
/* Huffman decode */
int hti;
int huff_code_size;
uint16_t huffman_table[80][32][2];
- uint32_t filter_limit_values[64];
- int bounding_values_array[256];
+ uint8_t filter_limit_values[64];
+ DECLARE_ALIGNED_8(int, bounding_values_array[256+2]);
} Vp3DecodeContext;
-static int theora_decode_comments(AVCodecContext *avctx, GetBitContext gb);
-static int theora_decode_tables(AVCodecContext *avctx, GetBitContext gb);
-
/************************************************************************
* VP3 specific functions
************************************************************************/
*
* Returns 0 is successful; returns 1 if *anything* went wrong.
*/
-static int init_block_mapping(Vp3DecodeContext *s)
+static int init_block_mapping(Vp3DecodeContext *s)
{
int i, j;
- signed int hilbert_walk_y[16];
- signed int hilbert_walk_c[16];
signed int hilbert_walk_mb[4];
int current_fragment = 0;
int right_edge = 0;
int bottom_edge = 0;
int superblock_row_inc = 0;
- int *hilbert = NULL;
int mapping_index = 0;
int current_macroblock;
int c_fragment;
signed char travel_width[16] = {
- 1, 1, 0, -1,
+ 1, 1, 0, -1,
0, 0, 1, 0,
1, 0, 1, 0,
0, -1, 0, 1
0, 1, 0, -1
};
- debug_vp3(" vp3: initialize block mapping tables\n");
-
- /* figure out hilbert pattern per these frame dimensions */
- hilbert_walk_y[0] = 1;
- hilbert_walk_y[1] = 1;
- hilbert_walk_y[2] = s->fragment_width;
- hilbert_walk_y[3] = -1;
- hilbert_walk_y[4] = s->fragment_width;
- hilbert_walk_y[5] = s->fragment_width;
- hilbert_walk_y[6] = 1;
- hilbert_walk_y[7] = -s->fragment_width;
- hilbert_walk_y[8] = 1;
- hilbert_walk_y[9] = s->fragment_width;
- hilbert_walk_y[10] = 1;
- hilbert_walk_y[11] = -s->fragment_width;
- hilbert_walk_y[12] = -s->fragment_width;
- hilbert_walk_y[13] = -1;
- hilbert_walk_y[14] = -s->fragment_width;
- hilbert_walk_y[15] = 1;
-
- hilbert_walk_c[0] = 1;
- hilbert_walk_c[1] = 1;
- hilbert_walk_c[2] = s->fragment_width / 2;
- hilbert_walk_c[3] = -1;
- hilbert_walk_c[4] = s->fragment_width / 2;
- hilbert_walk_c[5] = s->fragment_width / 2;
- hilbert_walk_c[6] = 1;
- hilbert_walk_c[7] = -s->fragment_width / 2;
- hilbert_walk_c[8] = 1;
- hilbert_walk_c[9] = s->fragment_width / 2;
- hilbert_walk_c[10] = 1;
- hilbert_walk_c[11] = -s->fragment_width / 2;
- hilbert_walk_c[12] = -s->fragment_width / 2;
- hilbert_walk_c[13] = -1;
- hilbert_walk_c[14] = -s->fragment_width / 2;
- hilbert_walk_c[15] = 1;
-
hilbert_walk_mb[0] = 1;
hilbert_walk_mb[1] = s->macroblock_width;
hilbert_walk_mb[2] = 1;
/* iterate through each superblock (all planes) and map the fragments */
for (i = 0; i < s->superblock_count; i++) {
- debug_init(" superblock %d (u starts @ %d, v starts @ %d)\n",
- i, s->u_superblock_start, s->v_superblock_start);
-
/* time to re-assign the limits? */
if (i == 0) {
bottom_edge = s->fragment_height;
current_width = -1;
current_height = 0;
- superblock_row_inc = 3 * s->fragment_width -
+ superblock_row_inc = 3 * s->fragment_width -
(s->y_superblock_width * 4 - s->fragment_width);
- hilbert = hilbert_walk_y;
/* the first operation for this variable is to advance by 1 */
current_fragment = -1;
bottom_edge = s->fragment_height / 2;
current_width = -1;
current_height = 0;
- superblock_row_inc = 3 * (s->fragment_width / 2) -
+ superblock_row_inc = 3 * (s->fragment_width / 2) -
(s->c_superblock_width * 4 - s->fragment_width / 2);
- hilbert = hilbert_walk_c;
/* the first operation for this variable is to advance by 1 */
- current_fragment = s->u_fragment_start - 1;
+ current_fragment = s->fragment_start[1] - 1;
} else if (i == s->v_superblock_start) {
bottom_edge = s->fragment_height / 2;
current_width = -1;
current_height = 0;
- superblock_row_inc = 3 * (s->fragment_width / 2) -
+ superblock_row_inc = 3 * (s->fragment_width / 2) -
(s->c_superblock_width * 4 - s->fragment_width / 2);
- hilbert = hilbert_walk_c;
/* the first operation for this variable is to advance by 1 */
- current_fragment = s->v_fragment_start - 1;
+ current_fragment = s->fragment_start[2] - 1;
}
/* iterate through all 16 fragments in a superblock */
for (j = 0; j < 16; j++) {
- current_fragment += hilbert[j];
+ current_fragment += travel_width[j] + right_edge * travel_height[j];
current_width += travel_width[j];
current_height += travel_height[j];
if ((current_width < right_edge) &&
(current_height < bottom_edge)) {
s->superblock_fragments[mapping_index] = current_fragment;
- debug_init(" mapping fragment %d to superblock %d, position %d (%d/%d x %d/%d)\n",
- s->superblock_fragments[mapping_index], i, j,
- current_width, right_edge, current_height, bottom_edge);
} else {
s->superblock_fragments[mapping_index] = -1;
- debug_init(" superblock %d, position %d has no fragment (%d/%d x %d/%d)\n",
- i, j,
- current_width, right_edge, current_height, bottom_edge);
}
mapping_index++;
current_width = -1;
current_height = 0;
superblock_row_inc = s->macroblock_width -
- (s->y_superblock_width * 2 - s->macroblock_width);;
- hilbert = hilbert_walk_mb;
+ (s->y_superblock_width * 2 - s->macroblock_width);
mapping_index = 0;
current_macroblock = -1;
for (i = 0; i < s->u_superblock_start; i++) {
if ((current_width < right_edge) &&
(current_height < bottom_edge)) {
s->superblock_macroblocks[mapping_index] = current_macroblock;
- debug_init(" mapping macroblock %d to superblock %d, position %d (%d/%d x %d/%d)\n",
- s->superblock_macroblocks[mapping_index], i, j,
- current_width, right_edge, current_height, bottom_edge);
} else {
s->superblock_macroblocks[mapping_index] = -1;
- debug_init(" superblock %d, position %d has no macroblock (%d/%d x %d/%d)\n",
- i, j,
- current_width, right_edge, current_height, bottom_edge);
}
mapping_index++;
for (j = 0; j < s->fragment_width; j += 2) {
- debug_init(" macroblock %d contains fragments: ", current_macroblock);
s->all_fragments[current_fragment].macroblock = current_macroblock;
s->macroblock_fragments[mapping_index++] = current_fragment;
- debug_init("%d ", current_fragment);
if (j + 1 < s->fragment_width) {
s->all_fragments[current_fragment + 1].macroblock = current_macroblock;
s->macroblock_fragments[mapping_index++] = current_fragment + 1;
- debug_init("%d ", current_fragment + 1);
} else
s->macroblock_fragments[mapping_index++] = -1;
if (i + 1 < s->fragment_height) {
- s->all_fragments[current_fragment + s->fragment_width].macroblock =
+ s->all_fragments[current_fragment + s->fragment_width].macroblock =
current_macroblock;
- s->macroblock_fragments[mapping_index++] =
+ s->macroblock_fragments[mapping_index++] =
current_fragment + s->fragment_width;
- debug_init("%d ", current_fragment + s->fragment_width);
} else
s->macroblock_fragments[mapping_index++] = -1;
if ((j + 1 < s->fragment_width) && (i + 1 < s->fragment_height)) {
- s->all_fragments[current_fragment + s->fragment_width + 1].macroblock =
+ s->all_fragments[current_fragment + s->fragment_width + 1].macroblock =
current_macroblock;
- s->macroblock_fragments[mapping_index++] =
+ s->macroblock_fragments[mapping_index++] =
current_fragment + s->fragment_width + 1;
- debug_init("%d ", current_fragment + s->fragment_width + 1);
} else
s->macroblock_fragments[mapping_index++] = -1;
/* C planes */
- c_fragment = s->u_fragment_start +
+ c_fragment = s->fragment_start[1] +
(i * s->fragment_width / 4) + (j / 2);
s->all_fragments[c_fragment].macroblock = s->macroblock_count;
s->macroblock_fragments[mapping_index++] = c_fragment;
- debug_init("%d ", c_fragment);
- c_fragment = s->v_fragment_start +
+ c_fragment = s->fragment_start[2] +
(i * s->fragment_width / 4) + (j / 2);
s->all_fragments[c_fragment].macroblock = s->macroblock_count;
s->macroblock_fragments[mapping_index++] = c_fragment;
- debug_init("%d ", c_fragment);
-
- debug_init("\n");
if (j + 2 <= s->fragment_width)
current_fragment += 2;
- else
+ else
current_fragment++;
current_macroblock++;
}
/* zero out all of the fragment information */
s->coded_fragment_list_index = 0;
for (i = 0; i < s->fragment_count; i++) {
- s->all_fragments[i].coeff_count = 0;
+ s->coeff_counts[i] = 0;
s->all_fragments[i].motion_x = 127;
s->all_fragments[i].motion_y = 127;
s->all_fragments[i].next_coeff= NULL;
*/
static void init_dequantizer(Vp3DecodeContext *s)
{
-
int ac_scale_factor = s->coded_ac_scale_factor[s->quality_index];
int dc_scale_factor = s->coded_dc_scale_factor[s->quality_index];
- int i, j;
-
- debug_vp3(" vp3: initializing dequantization tables\n");
-
- /*
- * Scale dequantizers:
- *
- * quantizer * sf
- * --------------
- * 100
- *
- * where sf = dc_scale_factor for DC quantizer
- * or ac_scale_factor for AC quantizer
- *
- * Then, saturate the result to a lower limit of MIN_DEQUANT_VAL.
- */
-#define SCALER 4
-
- /* scale DC quantizers */
- s->intra_y_dequant[0] = s->coded_intra_y_dequant[0] * dc_scale_factor / 100;
- if (s->intra_y_dequant[0] < MIN_DEQUANT_VAL * 2)
- s->intra_y_dequant[0] = MIN_DEQUANT_VAL * 2;
- s->intra_y_dequant[0] *= SCALER;
-
- s->intra_c_dequant[0] = s->coded_intra_c_dequant[0] * dc_scale_factor / 100;
- if (s->intra_c_dequant[0] < MIN_DEQUANT_VAL * 2)
- s->intra_c_dequant[0] = MIN_DEQUANT_VAL * 2;
- s->intra_c_dequant[0] *= SCALER;
-
- s->inter_dequant[0] = s->coded_inter_dequant[0] * dc_scale_factor / 100;
- if (s->inter_dequant[0] < MIN_DEQUANT_VAL * 4)
- s->inter_dequant[0] = MIN_DEQUANT_VAL * 4;
- s->inter_dequant[0] *= SCALER;
-
- /* scale AC quantizers, zigzag at the same time in preparation for
- * the dequantization phase */
- for (i = 1; i < 64; i++) {
- int k= s->scantable.scantable[i];
- j = s->scantable.permutated[i];
-
- s->intra_y_dequant[j] = s->coded_intra_y_dequant[k] * ac_scale_factor / 100;
- if (s->intra_y_dequant[j] < MIN_DEQUANT_VAL)
- s->intra_y_dequant[j] = MIN_DEQUANT_VAL;
- s->intra_y_dequant[j] *= SCALER;
-
- s->intra_c_dequant[j] = s->coded_intra_c_dequant[k] * ac_scale_factor / 100;
- if (s->intra_c_dequant[j] < MIN_DEQUANT_VAL)
- s->intra_c_dequant[j] = MIN_DEQUANT_VAL;
- s->intra_c_dequant[j] *= SCALER;
-
- s->inter_dequant[j] = s->coded_inter_dequant[k] * ac_scale_factor / 100;
- if (s->inter_dequant[j] < MIN_DEQUANT_VAL * 2)
- s->inter_dequant[j] = MIN_DEQUANT_VAL * 2;
- s->inter_dequant[j] *= SCALER;
- }
-
- memset(s->qscale_table, (FFMAX(s->intra_y_dequant[1], s->intra_c_dequant[1])+8)/16, 512); //FIXME finetune
-
- /* print debug information as requested */
- debug_dequantizers("intra Y dequantizers:\n");
- for (i = 0; i < 8; i++) {
- for (j = i * 8; j < i * 8 + 8; j++) {
- debug_dequantizers(" %4d,", s->intra_y_dequant[j]);
- }
- debug_dequantizers("\n");
- }
- debug_dequantizers("\n");
-
- debug_dequantizers("intra C dequantizers:\n");
- for (i = 0; i < 8; i++) {
- for (j = i * 8; j < i * 8 + 8; j++) {
- debug_dequantizers(" %4d,", s->intra_c_dequant[j]);
- }
- debug_dequantizers("\n");
- }
- debug_dequantizers("\n");
-
- debug_dequantizers("interframe dequantizers:\n");
- for (i = 0; i < 8; i++) {
- for (j = i * 8; j < i * 8 + 8; j++) {
- debug_dequantizers(" %4d,", s->inter_dequant[j]);
- }
- debug_dequantizers("\n");
+ int i, plane, inter, qri, bmi, bmj, qistart;
+
+ for(inter=0; inter<2; inter++){
+ for(plane=0; plane<3; plane++){
+ int sum=0;
+ for(qri=0; qri<s->qr_count[inter][plane]; qri++){
+ sum+= s->qr_size[inter][plane][qri];
+ if(s->quality_index <= sum)
+ break;
+ }
+ qistart= sum - s->qr_size[inter][plane][qri];
+ bmi= s->qr_base[inter][plane][qri ];
+ bmj= s->qr_base[inter][plane][qri+1];
+ for(i=0; i<64; i++){
+ int coeff= ( 2*(sum -s->quality_index)*s->base_matrix[bmi][i]
+ - 2*(qistart-s->quality_index)*s->base_matrix[bmj][i]
+ + s->qr_size[inter][plane][qri])
+ / (2*s->qr_size[inter][plane][qri]);
+
+ int qmin= 8<<(inter + !i);
+ int qscale= i ? ac_scale_factor : dc_scale_factor;
+
+ s->qmat[inter][plane][s->dsp.idct_permutation[i]]= av_clip((qscale * coeff)/100 * 4, qmin, 4096);
+ }
+ }
}
- debug_dequantizers("\n");
+
+ memset(s->qscale_table, (FFMAX(s->qmat[0][0][1], s->qmat[0][1][1])+8)/16, 512); //FIXME finetune
}
/*
bounding_values[x] = x;
bounding_values[x + filter_limit] = filter_limit - x;
}
+ bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202;
}
/*
- * This function unpacks all of the superblock/macroblock/fragment coding
+ * This function unpacks all of the superblock/macroblock/fragment coding
* information from the bitstream.
*/
static int unpack_superblocks(Vp3DecodeContext *s, GetBitContext *gb)
int i, j;
int current_fragment;
- debug_vp3(" vp3: unpacking superblock coding\n");
-
if (s->keyframe) {
-
- debug_vp3(" keyframe-- all superblocks are fully coded\n");
memset(s->superblock_coding, SB_FULLY_CODED, s->superblock_count);
} else {
/* unpack the list of partially-coded superblocks */
- bit = get_bits(gb, 1);
- /* toggle the bit because as soon as the first run length is
+ bit = get_bits1(gb);
+ /* toggle the bit because as soon as the first run length is
* fetched the bit will be toggled again */
bit ^= 1;
while (current_superblock < s->superblock_count) {
if (current_run-- == 0) {
bit ^= 1;
- current_run = get_vlc2(gb,
+ current_run = get_vlc2(gb,
s->superblock_run_length_vlc.table, 6, 2);
if (current_run == 33)
current_run += get_bits(gb, 12);
- debug_block_coding(" setting superblocks %d..%d to %s\n",
- current_superblock,
- current_superblock + current_run - 1,
- (bit) ? "partially coded" : "not coded");
/* if any of the superblocks are not partially coded, flag
* a boolean to decode the list of fully-coded superblocks */
current_superblock = 0;
current_run = 0;
- bit = get_bits(gb, 1);
- /* toggle the bit because as soon as the first run length is
+ bit = get_bits1(gb);
+ /* toggle the bit because as soon as the first run length is
* fetched the bit will be toggled again */
bit ^= 1;
while (current_superblock < s->superblock_count) {
if (current_run-- == 0) {
bit ^= 1;
- current_run = get_vlc2(gb,
+ current_run = get_vlc2(gb,
s->superblock_run_length_vlc.table, 6, 2);
if (current_run == 33)
current_run += get_bits(gb, 12);
}
-
- debug_block_coding(" setting superblock %d to %s\n",
- current_superblock,
- (bit) ? "fully coded" : "not coded");
s->superblock_coding[current_superblock] = 2*bit;
}
current_superblock++;
if (decode_partial_blocks) {
current_run = 0;
- bit = get_bits(gb, 1);
- /* toggle the bit because as soon as the first run length is
+ bit = get_bits1(gb);
+ /* toggle the bit because as soon as the first run length is
* fetched the bit will be toggled again */
bit ^= 1;
}
if (s->superblock_coding[i] == SB_NOT_CODED) {
/* copy all the fragments from the prior frame */
- s->all_fragments[current_fragment].coding_method =
+ s->all_fragments[current_fragment].coding_method =
MODE_COPY;
} else if (s->superblock_coding[i] == SB_PARTIALLY_CODED) {
* that cares about the fragment coding runs */
if (current_run-- == 0) {
bit ^= 1;
- current_run = get_vlc2(gb,
+ current_run = get_vlc2(gb,
s->fragment_run_length_vlc.table, 5, 2);
}
if (bit) {
- /* default mode; actual mode will be decoded in
+ /* default mode; actual mode will be decoded in
* the next phase */
- s->all_fragments[current_fragment].coding_method =
+ s->all_fragments[current_fragment].coding_method =
MODE_INTER_NO_MV;
s->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
- s->coded_fragment_list[s->coded_fragment_list_index] =
+ s->coded_fragment_list[s->coded_fragment_list_index] =
current_fragment;
- if ((current_fragment >= s->u_fragment_start) &&
+ if ((current_fragment >= s->fragment_start[1]) &&
(s->last_coded_y_fragment == -1) &&
(!first_c_fragment_seen)) {
s->first_coded_c_fragment = s->coded_fragment_list_index;
}
s->coded_fragment_list_index++;
s->macroblock_coding[s->all_fragments[current_fragment].macroblock] = MODE_INTER_NO_MV;
- debug_block_coding(" superblock %d is partially coded, fragment %d is coded\n",
- i, current_fragment);
} else {
/* not coded; copy this fragment from the prior frame */
s->all_fragments[current_fragment].coding_method =
MODE_COPY;
- debug_block_coding(" superblock %d is partially coded, fragment %d is not coded\n",
- i, current_fragment);
}
} else {
/* fragments are fully coded in this superblock; actual
* coding will be determined in next step */
- s->all_fragments[current_fragment].coding_method =
+ s->all_fragments[current_fragment].coding_method =
MODE_INTER_NO_MV;
s->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
- s->coded_fragment_list[s->coded_fragment_list_index] =
+ s->coded_fragment_list[s->coded_fragment_list_index] =
current_fragment;
- if ((current_fragment >= s->u_fragment_start) &&
+ if ((current_fragment >= s->fragment_start[1]) &&
(s->last_coded_y_fragment == -1) &&
(!first_c_fragment_seen)) {
s->first_coded_c_fragment = s->coded_fragment_list_index;
}
s->coded_fragment_list_index++;
s->macroblock_coding[s->all_fragments[current_fragment].macroblock] = MODE_INTER_NO_MV;
- debug_block_coding(" superblock %d is fully coded, fragment %d is coded\n",
- i, current_fragment);
}
}
}
if (!first_c_fragment_seen)
/* only Y fragments coded in this frame */
s->last_coded_y_fragment = s->coded_fragment_list_index - 1;
- else
+ else
/* end the list of coded C fragments */
s->last_coded_c_fragment = s->coded_fragment_list_index - 1;
- debug_block_coding(" %d total coded fragments, y: %d -> %d, c: %d -> %d\n",
- s->coded_fragment_list_index,
- s->first_coded_y_fragment,
- s->last_coded_y_fragment,
- s->first_coded_c_fragment,
- s->last_coded_c_fragment);
-
return 0;
}
int current_macroblock;
int current_fragment;
int coding_mode;
-
- debug_vp3(" vp3: unpacking encoding modes\n");
+ int custom_mode_alphabet[CODING_MODE_COUNT];
if (s->keyframe) {
- debug_vp3(" keyframe-- all blocks are coded as INTRA\n");
-
for (i = 0; i < s->fragment_count; i++)
s->all_fragments[i].coding_method = MODE_INTRA;
/* fetch the mode coding scheme for this frame */
scheme = get_bits(gb, 3);
- debug_modes(" using mode alphabet %d\n", scheme);
/* is it a custom coding scheme? */
if (scheme == 0) {
- debug_modes(" custom mode alphabet ahead:\n");
for (i = 0; i < 8; i++)
- ModeAlphabet[scheme][get_bits(gb, 3)] = i;
+ custom_mode_alphabet[i] = MODE_INTER_NO_MV;
+ for (i = 0; i < 8; i++)
+ custom_mode_alphabet[get_bits(gb, 3)] = i;
}
- for (i = 0; i < 8; i++)
- debug_modes(" mode[%d][%d] = %d\n", scheme, i,
- ModeAlphabet[scheme][i]);
-
/* iterate through all of the macroblocks that contain 1 or more
* coded fragments */
for (i = 0; i < s->u_superblock_start; i++) {
/* mode 7 means get 3 bits for each coding mode */
if (scheme == 7)
coding_mode = get_bits(gb, 3);
+ else if(scheme == 0)
+ coding_mode = custom_mode_alphabet
+ [get_vlc2(gb, s->mode_code_vlc.table, 3, 3)];
else
- coding_mode = ModeAlphabet[scheme]
+ coding_mode = ModeAlphabet[scheme-1]
[get_vlc2(gb, s->mode_code_vlc.table, 3, 3)];
s->macroblock_coding[current_macroblock] = coding_mode;
for (k = 0; k < 6; k++) {
- current_fragment =
+ current_fragment =
s->macroblock_fragments[current_macroblock * 6 + k];
if (current_fragment == -1)
continue;
current_fragment, s->fragment_count);
return 1;
}
- if (s->all_fragments[current_fragment].coding_method !=
+ if (s->all_fragments[current_fragment].coding_method !=
MODE_COPY)
s->all_fragments[current_fragment].coding_method =
coding_mode;
}
-
- debug_modes(" coding method for macroblock starting @ fragment %d = %d\n",
- s->macroblock_fragments[current_macroblock * 6], coding_mode);
}
}
}
*/
static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
{
- int i, j, k;
+ int i, j, k, l;
int coding_mode;
int motion_x[6];
int motion_y[6];
int current_macroblock;
int current_fragment;
- debug_vp3(" vp3: unpacking motion vectors\n");
- if (s->keyframe) {
-
- debug_vp3(" keyframe-- there are no motion vectors\n");
+ if (s->keyframe)
+ return 0;
- } else {
+ memset(motion_x, 0, 6 * sizeof(int));
+ memset(motion_y, 0, 6 * sizeof(int));
- memset(motion_x, 0, 6 * sizeof(int));
- memset(motion_y, 0, 6 * sizeof(int));
+ /* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
+ coding_mode = get_bits1(gb);
- /* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
- coding_mode = get_bits(gb, 1);
- debug_vectors(" using %s scheme for unpacking motion vectors\n",
- (coding_mode == 0) ? "VLC" : "fixed-length");
+ /* iterate through all of the macroblocks that contain 1 or more
+ * coded fragments */
+ for (i = 0; i < s->u_superblock_start; i++) {
- /* iterate through all of the macroblocks that contain 1 or more
- * coded fragments */
- for (i = 0; i < s->u_superblock_start; i++) {
+ for (j = 0; j < 4; j++) {
+ current_macroblock = s->superblock_macroblocks[i * 4 + j];
+ if ((current_macroblock == -1) ||
+ (s->macroblock_coding[current_macroblock] == MODE_COPY))
+ continue;
+ if (current_macroblock >= s->macroblock_count) {
+ av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad macroblock number (%d >= %d)\n",
+ current_macroblock, s->macroblock_count);
+ return 1;
+ }
- for (j = 0; j < 4; j++) {
- current_macroblock = s->superblock_macroblocks[i * 4 + j];
- if ((current_macroblock == -1) ||
- (s->macroblock_coding[current_macroblock] == MODE_COPY))
- continue;
- if (current_macroblock >= s->macroblock_count) {
- av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad macroblock number (%d >= %d)\n",
- current_macroblock, s->macroblock_count);
- return 1;
+ current_fragment = s->macroblock_fragments[current_macroblock * 6];
+ if (current_fragment >= s->fragment_count) {
+ av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d\n",
+ current_fragment, s->fragment_count);
+ return 1;
+ }
+ switch (s->macroblock_coding[current_macroblock]) {
+
+ case MODE_INTER_PLUS_MV:
+ case MODE_GOLDEN_MV:
+ /* all 6 fragments use the same motion vector */
+ if (coding_mode == 0) {
+ motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ } else {
+ motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
+ motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
}
- current_fragment = s->macroblock_fragments[current_macroblock * 6];
- if (current_fragment >= s->fragment_count) {
- av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d\n",
- current_fragment, s->fragment_count);
- return 1;
+ for (k = 1; k < 6; k++) {
+ motion_x[k] = motion_x[0];
+ motion_y[k] = motion_y[0];
}
- switch (s->macroblock_coding[current_macroblock]) {
-
- case MODE_INTER_PLUS_MV:
- case MODE_GOLDEN_MV:
- /* all 6 fragments use the same motion vector */
- if (coding_mode == 0) {
- motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
- motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
- } else {
- motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
- motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
- }
-
- for (k = 1; k < 6; k++) {
- motion_x[k] = motion_x[0];
- motion_y[k] = motion_y[0];
- }
- /* vector maintenance, only on MODE_INTER_PLUS_MV */
- if (s->macroblock_coding[current_macroblock] ==
- MODE_INTER_PLUS_MV) {
- prior_last_motion_x = last_motion_x;
- prior_last_motion_y = last_motion_y;
- last_motion_x = motion_x[0];
- last_motion_y = motion_y[0];
- }
- break;
-
- case MODE_INTER_FOURMV:
- /* fetch 4 vectors from the bitstream, one for each
- * Y fragment, then average for the C fragment vectors */
- motion_x[4] = motion_y[4] = 0;
- for (k = 0; k < 4; k++) {
+ /* vector maintenance, only on MODE_INTER_PLUS_MV */
+ if (s->macroblock_coding[current_macroblock] ==
+ MODE_INTER_PLUS_MV) {
+ prior_last_motion_x = last_motion_x;
+ prior_last_motion_y = last_motion_y;
+ last_motion_x = motion_x[0];
+ last_motion_y = motion_y[0];
+ }
+ break;
+
+ case MODE_INTER_FOURMV:
+ /* vector maintenance */
+ prior_last_motion_x = last_motion_x;
+ prior_last_motion_y = last_motion_y;
+
+ /* fetch 4 vectors from the bitstream, one for each
+ * Y fragment, then average for the C fragment vectors */
+ motion_x[4] = motion_y[4] = 0;
+ for (k = 0; k < 4; k++) {
+ for (l = 0; l < s->coded_fragment_list_index; l++)
+ if (s->coded_fragment_list[l] == s->macroblock_fragments[6*current_macroblock + k])
+ break;
+ if (l < s->coded_fragment_list_index) {
if (coding_mode == 0) {
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
}
- motion_x[4] += motion_x[k];
- motion_y[4] += motion_y[k];
- }
-
- if (motion_x[4] >= 0)
- motion_x[4] = (motion_x[4] + 2) / 4;
- else
- motion_x[4] = (motion_x[4] - 2) / 4;
- motion_x[5] = motion_x[4];
-
- if (motion_y[4] >= 0)
- motion_y[4] = (motion_y[4] + 2) / 4;
- else
- motion_y[4] = (motion_y[4] - 2) / 4;
- motion_y[5] = motion_y[4];
-
- /* vector maintenance; vector[3] is treated as the
- * last vector in this case */
- prior_last_motion_x = last_motion_x;
- prior_last_motion_y = last_motion_y;
- last_motion_x = motion_x[3];
- last_motion_y = motion_y[3];
- break;
-
- case MODE_INTER_LAST_MV:
- /* all 6 fragments use the last motion vector */
- motion_x[0] = last_motion_x;
- motion_y[0] = last_motion_y;
- for (k = 1; k < 6; k++) {
- motion_x[k] = motion_x[0];
- motion_y[k] = motion_y[0];
+ last_motion_x = motion_x[k];
+ last_motion_y = motion_y[k];
+ } else {
+ motion_x[k] = 0;
+ motion_y[k] = 0;
}
+ motion_x[4] += motion_x[k];
+ motion_y[4] += motion_y[k];
+ }
- /* no vector maintenance (last vector remains the
- * last vector) */
- break;
+ motion_x[5]=
+ motion_x[4]= RSHIFT(motion_x[4], 2);
+ motion_y[5]=
+ motion_y[4]= RSHIFT(motion_y[4], 2);
+ break;
+
+ case MODE_INTER_LAST_MV:
+ /* all 6 fragments use the last motion vector */
+ motion_x[0] = last_motion_x;
+ motion_y[0] = last_motion_y;
+ for (k = 1; k < 6; k++) {
+ motion_x[k] = motion_x[0];
+ motion_y[k] = motion_y[0];
+ }
- case MODE_INTER_PRIOR_LAST:
- /* all 6 fragments use the motion vector prior to the
- * last motion vector */
- motion_x[0] = prior_last_motion_x;
- motion_y[0] = prior_last_motion_y;
- for (k = 1; k < 6; k++) {
- motion_x[k] = motion_x[0];
- motion_y[k] = motion_y[0];
- }
+ /* no vector maintenance (last vector remains the
+ * last vector) */
+ break;
+
+ case MODE_INTER_PRIOR_LAST:
+ /* all 6 fragments use the motion vector prior to the
+ * last motion vector */
+ motion_x[0] = prior_last_motion_x;
+ motion_y[0] = prior_last_motion_y;
+ for (k = 1; k < 6; k++) {
+ motion_x[k] = motion_x[0];
+ motion_y[k] = motion_y[0];
+ }
- /* vector maintenance */
- prior_last_motion_x = last_motion_x;
- prior_last_motion_y = last_motion_y;
- last_motion_x = motion_x[0];
- last_motion_y = motion_y[0];
- break;
+ /* vector maintenance */
+ prior_last_motion_x = last_motion_x;
+ prior_last_motion_y = last_motion_y;
+ last_motion_x = motion_x[0];
+ last_motion_y = motion_y[0];
+ break;
- default:
- /* covers intra, inter without MV, golden without MV */
- memset(motion_x, 0, 6 * sizeof(int));
- memset(motion_y, 0, 6 * sizeof(int));
+ default:
+ /* covers intra, inter without MV, golden without MV */
+ memset(motion_x, 0, 6 * sizeof(int));
+ memset(motion_y, 0, 6 * sizeof(int));
- /* no vector maintenance */
- break;
- }
+ /* no vector maintenance */
+ break;
+ }
- /* assign the motion vectors to the correct fragments */
- debug_vectors(" vectors for macroblock starting @ fragment %d (coding method %d):\n",
- current_fragment,
- s->macroblock_coding[current_macroblock]);
- for (k = 0; k < 6; k++) {
- current_fragment =
- s->macroblock_fragments[current_macroblock * 6 + k];
- if (current_fragment == -1)
- continue;
- if (current_fragment >= s->fragment_count) {
- av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d)\n",
- current_fragment, s->fragment_count);
- return 1;
- }
- s->all_fragments[current_fragment].motion_x = motion_x[k];
- s->all_fragments[current_fragment].motion_y = motion_y[k];
- debug_vectors(" vector %d: fragment %d = (%d, %d)\n",
- k, current_fragment, motion_x[k], motion_y[k]);
+ /* assign the motion vectors to the correct fragments */
+ for (k = 0; k < 6; k++) {
+ current_fragment =
+ s->macroblock_fragments[current_macroblock * 6 + k];
+ if (current_fragment == -1)
+ continue;
+ if (current_fragment >= s->fragment_count) {
+ av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d)\n",
+ current_fragment, s->fragment_count);
+ return 1;
}
+ s->all_fragments[current_fragment].motion_x = motion_x[k];
+ s->all_fragments[current_fragment].motion_y = motion_y[k];
}
}
}
return 0;
}
-/*
+/*
* This function is called by unpack_dct_coeffs() to extract the VLCs from
* the bitstream. The VLCs encode tokens which are used to unpack DCT
* data. This function unpacks all the VLCs for either the Y plane or both
}
for (i = first_fragment; i <= last_fragment; i++) {
+ int fragment_num = s->coded_fragment_list[i];
- fragment = &s->all_fragments[s->coded_fragment_list[i]];
- if (fragment->coeff_count > coeff_index)
+ if (s->coeff_counts[fragment_num] > coeff_index)
continue;
+ fragment = &s->all_fragments[fragment_num];
if (!eob_run) {
/* decode a VLC into a token */
token = get_vlc2(gb, table->table, 5, 3);
- debug_vlc(" token = %2d, ", token);
/* use the token to get a zero run, a coefficient, and an eob run */
if (token <= 6) {
eob_run = eob_run_base[token];
}
if (!eob_run) {
- fragment->coeff_count += zero_run;
- if (fragment->coeff_count < 64){
+ s->coeff_counts[fragment_num] += zero_run;
+ if (s->coeff_counts[fragment_num] < 64){
fragment->next_coeff->coeff= coeff;
- fragment->next_coeff->index= perm[fragment->coeff_count++]; //FIXME perm here already?
+ fragment->next_coeff->index= perm[s->coeff_counts[fragment_num]++]; //FIXME perm here already?
fragment->next_coeff->next= s->next_coeff;
s->next_coeff->next=NULL;
fragment->next_coeff= s->next_coeff++;
}
- debug_vlc(" fragment %d coeff = %d\n",
- s->coded_fragment_list[i], fragment->next_coeff[coeff_index]);
} else {
- fragment->coeff_count |= 128;
- debug_vlc(" fragment %d eob with %d coefficients\n",
- s->coded_fragment_list[i], fragment->coeff_count&127);
+ s->coeff_counts[fragment_num] |= 128;
eob_run--;
}
}
int ac_c_table;
int residual_eob_run = 0;
- /* fetch the DC table indices */
+ /* fetch the DC table indexes */
dc_y_table = get_bits(gb, 4);
dc_c_table = get_bits(gb, 4);
/* unpack the Y plane DC coefficients */
- debug_vp3(" vp3: unpacking Y plane DC coefficients using table %d\n",
- dc_y_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
+ residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
s->first_coded_y_fragment, s->last_coded_y_fragment, residual_eob_run);
/* unpack the C plane DC coefficients */
- debug_vp3(" vp3: unpacking C plane DC coefficients using table %d\n",
- dc_c_table);
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
s->first_coded_c_fragment, s->last_coded_c_fragment, residual_eob_run);
- /* fetch the AC table indices */
+ /* fetch the AC table indexes */
ac_y_table = get_bits(gb, 4);
ac_c_table = get_bits(gb, 4);
/* unpack the group 1 AC coefficients (coeffs 1-5) */
for (i = 1; i <= 5; i++) {
-
- debug_vp3(" vp3: unpacking level %d Y plane AC coefficients using table %d\n",
- i, ac_y_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_1[ac_y_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_1[ac_y_table], i,
s->first_coded_y_fragment, s->last_coded_y_fragment, residual_eob_run);
- debug_vp3(" vp3: unpacking level %d C plane AC coefficients using table %d\n",
- i, ac_c_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_1[ac_c_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_1[ac_c_table], i,
s->first_coded_c_fragment, s->last_coded_c_fragment, residual_eob_run);
}
/* unpack the group 2 AC coefficients (coeffs 6-14) */
for (i = 6; i <= 14; i++) {
-
- debug_vp3(" vp3: unpacking level %d Y plane AC coefficients using table %d\n",
- i, ac_y_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_2[ac_y_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_2[ac_y_table], i,
s->first_coded_y_fragment, s->last_coded_y_fragment, residual_eob_run);
- debug_vp3(" vp3: unpacking level %d C plane AC coefficients using table %d\n",
- i, ac_c_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_2[ac_c_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_2[ac_c_table], i,
s->first_coded_c_fragment, s->last_coded_c_fragment, residual_eob_run);
}
/* unpack the group 3 AC coefficients (coeffs 15-27) */
for (i = 15; i <= 27; i++) {
-
- debug_vp3(" vp3: unpacking level %d Y plane AC coefficients using table %d\n",
- i, ac_y_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_3[ac_y_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_3[ac_y_table], i,
s->first_coded_y_fragment, s->last_coded_y_fragment, residual_eob_run);
- debug_vp3(" vp3: unpacking level %d C plane AC coefficients using table %d\n",
- i, ac_c_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_3[ac_c_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_3[ac_c_table], i,
s->first_coded_c_fragment, s->last_coded_c_fragment, residual_eob_run);
}
/* unpack the group 4 AC coefficients (coeffs 28-63) */
for (i = 28; i <= 63; i++) {
-
- debug_vp3(" vp3: unpacking level %d Y plane AC coefficients using table %d\n",
- i, ac_y_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_4[ac_y_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_4[ac_y_table], i,
s->first_coded_y_fragment, s->last_coded_y_fragment, residual_eob_run);
- debug_vp3(" vp3: unpacking level %d C plane AC coefficients using table %d\n",
- i, ac_c_table);
- residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_4[ac_c_table], i,
+ residual_eob_run = unpack_vlcs(s, gb, &s->ac_vlc_4[ac_c_table], i,
s->first_coded_c_fragment, s->last_coded_c_fragment, residual_eob_run);
}
/*
* This function reverses the DC prediction for each coded fragment in
- * the frame. Much of this function is adapted directly from the original
+ * the frame. Much of this function is adapted directly from the original
* VP3 source code.
*/
#define COMPATIBLE_FRAME(x) \
(compatible_frame[s->all_fragments[x].coding_method] == current_frame_type)
#define FRAME_CODED(x) (s->all_fragments[x].coding_method != MODE_COPY)
#define DC_COEFF(u) (s->coeffs[u].index ? 0 : s->coeffs[u].coeff) //FIXME do somethin to simplify this
-static inline int iabs (int x) { return ((x < 0) ? -x : x); }
static void reverse_dc_prediction(Vp3DecodeContext *s,
int first_fragment,
int fragment_width,
- int fragment_height)
+ int fragment_height)
{
#define PUL 8
int x, y;
int i = first_fragment;
- /*
- * Fragment prediction groups:
- *
- * 32222222226
- * 10000000004
- * 10000000004
- * 10000000004
- * 10000000004
- *
- * Note: Groups 5 and 7 do not exist as it would mean that the
- * fragment's x coordinate is both 0 and (width - 1) at the same time.
- */
- int predictor_group;
- short predicted_dc;
-
- /* validity flags for the left, up-left, up, and up-right fragments */
- int fl, ful, fu, fur;
+ int predicted_dc;
/* DC values for the left, up-left, up, and up-right fragments */
int vl, vul, vu, vur;
- /* indices for the left, up-left, up, and up-right fragments */
+ /* indexes for the left, up-left, up, and up-right fragments */
int l, ul, u, ur;
- /*
+ /*
* The 6 fields mean:
* 0: up-left multiplier
* 1: up multiplier
* 2: up-right multiplier
* 3: left multiplier
- * 4: mask
- * 5: right bit shift divisor (e.g., 7 means >>=7, a.k.a. div by 128)
*/
- int predictor_transform[16][6] = {
- { 0, 0, 0, 0, 0, 0 },
- { 0, 0, 0, 1, 0, 0 }, // PL
- { 0, 0, 1, 0, 0, 0 }, // PUR
- { 0, 0, 53, 75, 127, 7 }, // PUR|PL
- { 0, 1, 0, 0, 0, 0 }, // PU
- { 0, 1, 0, 1, 1, 1 }, // PU|PL
- { 0, 1, 0, 0, 0, 0 }, // PU|PUR
- { 0, 0, 53, 75, 127, 7 }, // PU|PUR|PL
- { 1, 0, 0, 0, 0, 0 }, // PUL
- { 0, 0, 0, 1, 0, 0 }, // PUL|PL
- { 1, 0, 1, 0, 1, 1 }, // PUL|PUR
- { 0, 0, 53, 75, 127, 7 }, // PUL|PUR|PL
- { 0, 1, 0, 0, 0, 0 }, // PUL|PU
- {-26, 29, 0, 29, 31, 5 }, // PUL|PU|PL
- { 3, 10, 3, 0, 15, 4 }, // PUL|PU|PUR
- {-26, 29, 0, 29, 31, 5 } // PUL|PU|PUR|PL
+ int predictor_transform[16][4] = {
+ { 0, 0, 0, 0},
+ { 0, 0, 0,128}, // PL
+ { 0, 0,128, 0}, // PUR
+ { 0, 0, 53, 75}, // PUR|PL
+ { 0,128, 0, 0}, // PU
+ { 0, 64, 0, 64}, // PU|PL
+ { 0,128, 0, 0}, // PU|PUR
+ { 0, 0, 53, 75}, // PU|PUR|PL
+ {128, 0, 0, 0}, // PUL
+ { 0, 0, 0,128}, // PUL|PL
+ { 64, 0, 64, 0}, // PUL|PUR
+ { 0, 0, 53, 75}, // PUL|PUR|PL
+ { 0,128, 0, 0}, // PUL|PU
+ {-104,116, 0,116}, // PUL|PU|PL
+ { 24, 80, 24, 0}, // PUL|PU|PUR
+ {-104,116, 0,116} // PUL|PU|PUR|PL
};
/* This table shows which types of blocks can use other blocks for
* prediction. For example, INTRA is the only mode in this table to
* have a frame number of 0. That means INTRA blocks can only predict
- * from other INTRA blocks. There are 2 golden frame coding types;
+ * from other INTRA blocks. There are 2 golden frame coding types;
* blocks encoding in these modes can only predict from other blocks
* that were encoded with these 1 of these 2 modes. */
unsigned char compatible_frame[8] = {
int transform = 0;
- debug_vp3(" vp3: reversing DC prediction\n");
-
vul = vu = vur = vl = 0;
last_dc[0] = last_dc[1] = last_dc[2] = 0;
/* reverse prediction if this block was coded */
if (s->all_fragments[i].coding_method != MODE_COPY) {
- current_frame_type =
+ current_frame_type =
compatible_frame[s->all_fragments[i].coding_method];
- predictor_group = (x == 0) + ((y == 0) << 1) +
- ((x + 1 == fragment_width) << 2);
- debug_dc_pred(" frag %d: group %d, orig DC = %d, ",
- i, predictor_group, DC_COEFF(i));
-
- switch (predictor_group) {
-
- case 0:
- /* main body of fragments; consider all 4 possible
- * fragments for prediction */
-
- /* calculate the indices of the predicting fragments */
- ul = i - fragment_width - 1;
- u = i - fragment_width;
- ur = i - fragment_width + 1;
- l = i - 1;
- /* fetch the DC values for the predicting fragments */
- vul = DC_COEFF(ul);
- vu = DC_COEFF(u);
- vur = DC_COEFF(ur);
+ transform= 0;
+ if(x){
+ l= i-1;
vl = DC_COEFF(l);
-
- /* figure out which fragments are valid */
- ful = FRAME_CODED(ul) && COMPATIBLE_FRAME(ul);
- fu = FRAME_CODED(u) && COMPATIBLE_FRAME(u);
- fur = FRAME_CODED(ur) && COMPATIBLE_FRAME(ur);
- fl = FRAME_CODED(l) && COMPATIBLE_FRAME(l);
-
- /* decide which predictor transform to use */
- transform = (fl*PL) | (fu*PU) | (ful*PUL) | (fur*PUR);
-
- break;
-
- case 1:
- /* left column of fragments, not including top corner;
- * only consider up and up-right fragments */
-
- /* calculate the indices of the predicting fragments */
- u = i - fragment_width;
- ur = i - fragment_width + 1;
-
- /* fetch the DC values for the predicting fragments */
- vu = DC_COEFF(u);
- vur = DC_COEFF(ur);
-
- /* figure out which fragments are valid */
- fur = FRAME_CODED(ur) && COMPATIBLE_FRAME(ur);
- fu = FRAME_CODED(u) && COMPATIBLE_FRAME(u);
-
- /* decide which predictor transform to use */
- transform = (fu*PU) | (fur*PUR);
-
- break;
-
- case 2:
- case 6:
- /* top row of fragments, not including top-left frag;
- * only consider the left fragment for prediction */
-
- /* calculate the indices of the predicting fragments */
- l = i - 1;
-
- /* fetch the DC values for the predicting fragments */
- vl = DC_COEFF(l);
-
- /* figure out which fragments are valid */
- fl = FRAME_CODED(l) && COMPATIBLE_FRAME(l);
-
- /* decide which predictor transform to use */
- transform = (fl*PL);
-
- break;
-
- case 3:
- /* top-left fragment */
-
- /* nothing to predict from in this case */
- transform = 0;
-
- break;
-
- case 4:
- /* right column of fragments, not including top corner;
- * consider up-left, up, and left fragments for
- * prediction */
-
- /* calculate the indices of the predicting fragments */
- ul = i - fragment_width - 1;
- u = i - fragment_width;
- l = i - 1;
-
- /* fetch the DC values for the predicting fragments */
- vul = DC_COEFF(ul);
+ if(FRAME_CODED(l) && COMPATIBLE_FRAME(l))
+ transform |= PL;
+ }
+ if(y){
+ u= i-fragment_width;
vu = DC_COEFF(u);
- vl = DC_COEFF(l);
-
- /* figure out which fragments are valid */
- ful = FRAME_CODED(ul) && COMPATIBLE_FRAME(ul);
- fu = FRAME_CODED(u) && COMPATIBLE_FRAME(u);
- fl = FRAME_CODED(l) && COMPATIBLE_FRAME(l);
-
- /* decide which predictor transform to use */
- transform = (fl*PL) | (fu*PU) | (ful*PUL);
-
- break;
-
+ if(FRAME_CODED(u) && COMPATIBLE_FRAME(u))
+ transform |= PU;
+ if(x){
+ ul= i-fragment_width-1;
+ vul = DC_COEFF(ul);
+ if(FRAME_CODED(ul) && COMPATIBLE_FRAME(ul))
+ transform |= PUL;
+ }
+ if(x + 1 < fragment_width){
+ ur= i-fragment_width+1;
+ vur = DC_COEFF(ur);
+ if(FRAME_CODED(ur) && COMPATIBLE_FRAME(ur))
+ transform |= PUR;
+ }
}
- debug_dc_pred("transform = %d, ", transform);
-
if (transform == 0) {
/* if there were no fragments to predict from, use last
* DC saved */
predicted_dc = last_dc[current_frame_type];
- debug_dc_pred("from last DC (%d) = %d\n",
- current_frame_type, DC_COEFF(i));
-
} else {
/* apply the appropriate predictor transform */
(predictor_transform[transform][2] * vur) +
(predictor_transform[transform][3] * vl);
- /* if there is a shift value in the transform, add
- * the sign bit before the shift */
- if (predictor_transform[transform][5] != 0) {
- predicted_dc += ((predicted_dc >> 15) &
- predictor_transform[transform][4]);
- predicted_dc >>= predictor_transform[transform][5];
- }
+ predicted_dc /= 128;
/* check for outranging on the [ul u l] and
* [ul u ur l] predictors */
if ((transform == 13) || (transform == 15)) {
- if (iabs(predicted_dc - vu) > 128)
+ if (FFABS(predicted_dc - vu) > 128)
predicted_dc = vu;
- else if (iabs(predicted_dc - vl) > 128)
+ else if (FFABS(predicted_dc - vl) > 128)
predicted_dc = vl;
- else if (iabs(predicted_dc - vul) > 128)
+ else if (FFABS(predicted_dc - vul) > 128)
predicted_dc = vul;
}
-
- debug_dc_pred("from pred DC = %d\n",
- DC_COEFF(i));
}
/* at long last, apply the predictor */
s->coeffs[i].coeff += predicted_dc;
/* save the DC */
last_dc[current_frame_type] = DC_COEFF(i);
- if(DC_COEFF(i) && !(s->all_fragments[i].coeff_count&127)){
- s->all_fragments[i].coeff_count= 129;
+ if(DC_COEFF(i) && !(s->coeff_counts[i]&127)){
+ s->coeff_counts[i]= 129;
// s->all_fragments[i].next_coeff= s->next_coeff;
s->coeffs[i].next= s->next_coeff;
(s->next_coeff++)->next=NULL;
}
}
-
-static void horizontal_filter(unsigned char *first_pixel, int stride,
- int *bounding_values);
-static void vertical_filter(unsigned char *first_pixel, int stride,
- int *bounding_values);
-
/*
* Perform the final rendering for a particular slice of data.
* The slice number ranges from 0..(macroblock_height - 1).
*/
static void render_slice(Vp3DecodeContext *s, int slice)
{
- int x, y;
- int m, n;
- int i; /* indicates current fragment */
+ int x;
int16_t *dequantizer;
- DCTELEM __align16 block[64];
- unsigned char *output_plane;
- unsigned char *last_plane;
- unsigned char *golden_plane;
- int stride;
+ DECLARE_ALIGNED_16(DCTELEM, block[64]);
int motion_x = 0xdeadbeef, motion_y = 0xdeadbeef;
- int upper_motion_limit, lower_motion_limit;
int motion_halfpel_index;
uint8_t *motion_source;
int plane;
- int plane_width;
- int plane_height;
- int slice_height;
int current_macroblock_entry = slice * s->macroblock_width * 6;
- int fragment_width;
if (slice >= s->macroblock_height)
return;
for (plane = 0; plane < 3; plane++) {
+ uint8_t *output_plane = s->current_frame.data [plane];
+ uint8_t * last_plane = s-> last_frame.data [plane];
+ uint8_t *golden_plane = s-> golden_frame.data [plane];
+ int stride = s->current_frame.linesize[plane];
+ int plane_width = s->width >> !!plane;
+ int plane_height = s->height >> !!plane;
+ int y = slice * FRAGMENT_PIXELS << !plane ;
+ int slice_height = y + (FRAGMENT_PIXELS << !plane);
+ int i = s->macroblock_fragments[current_macroblock_entry + plane + 3*!!plane];
- /* set up plane-specific parameters */
- if (plane == 0) {
- output_plane = s->current_frame.data[0];
- last_plane = s->last_frame.data[0];
- golden_plane = s->golden_frame.data[0];
- stride = s->current_frame.linesize[0];
- if (!s->flipped_image) stride = -stride;
- upper_motion_limit = 7 * s->current_frame.linesize[0];
- lower_motion_limit = s->height * s->current_frame.linesize[0] + s->width - 8;
- y = slice * FRAGMENT_PIXELS * 2;
- plane_width = s->width;
- plane_height = s->height;
- slice_height = y + FRAGMENT_PIXELS * 2;
- i = s->macroblock_fragments[current_macroblock_entry + 0];
- } else if (plane == 1) {
- output_plane = s->current_frame.data[1];
- last_plane = s->last_frame.data[1];
- golden_plane = s->golden_frame.data[1];
- stride = s->current_frame.linesize[1];
- if (!s->flipped_image) stride = -stride;
- upper_motion_limit = 7 * s->current_frame.linesize[1];
- lower_motion_limit = (s->height / 2) * s->current_frame.linesize[1] + (s->width / 2) - 8;
- y = slice * FRAGMENT_PIXELS;
- plane_width = s->width / 2;
- plane_height = s->height / 2;
- slice_height = y + FRAGMENT_PIXELS;
- i = s->macroblock_fragments[current_macroblock_entry + 4];
- } else {
- output_plane = s->current_frame.data[2];
- last_plane = s->last_frame.data[2];
- golden_plane = s->golden_frame.data[2];
- stride = s->current_frame.linesize[2];
- if (!s->flipped_image) stride = -stride;
- upper_motion_limit = 7 * s->current_frame.linesize[2];
- lower_motion_limit = (s->height / 2) * s->current_frame.linesize[2] + (s->width / 2) - 8;
- y = slice * FRAGMENT_PIXELS;
- plane_width = s->width / 2;
- plane_height = s->height / 2;
- slice_height = y + FRAGMENT_PIXELS;
- i = s->macroblock_fragments[current_macroblock_entry + 5];
- }
- fragment_width = plane_width / FRAGMENT_PIXELS;
-
- if(ABS(stride) > 2048)
+ if (!s->flipped_image) stride = -stride;
+
+
+ if(FFABS(stride) > 2048)
return; //various tables are fixed size
/* for each fragment row in the slice (both of them)... */
if ((s->all_fragments[i].coding_method == MODE_USING_GOLDEN) ||
(s->all_fragments[i].coding_method == MODE_GOLDEN_MV))
motion_source= golden_plane;
- else
+ else
motion_source= last_plane;
motion_source += s->all_fragments[i].first_pixel;
motion_source= temp;
}
}
-
+
/* first, take care of copying a block from either the
* previous or the golden frame */
if (s->all_fragments[i].coding_method != MODE_INTRA) {
- /* Note, it is possible to implement all MC cases with
- put_no_rnd_pixels_l2 which would look more like the
- VP3 source but this would be slower as
+ /* Note, it is possible to implement all MC cases with
+ put_no_rnd_pixels_l2 which would look more like the
+ VP3 source but this would be slower as
put_no_rnd_pixels_tab is better optimzed */
if(motion_halfpel_index != 3){
s->dsp.put_no_rnd_pixels_tab[1][motion_halfpel_index](
int d= (motion_x ^ motion_y)>>31; // d is 0 if motion_x and _y have the same sign, else -1
s->dsp.put_no_rnd_pixels_l2[1](
output_plane + s->all_fragments[i].first_pixel,
- motion_source - d,
- motion_source + stride + 1 + d,
+ motion_source - d,
+ motion_source + stride + 1 + d,
stride, 8);
}
- dequantizer = s->inter_dequant;
+ dequantizer = s->qmat[1][plane];
}else{
- if (plane == 0)
- dequantizer = s->intra_y_dequant;
- else
- dequantizer = s->intra_c_dequant;
+ dequantizer = s->qmat[0][plane];
}
/* dequantize the DCT coefficients */
- debug_idct("fragment %d, coding mode %d, DC = %d, dequant = %d:\n",
- i, s->all_fragments[i].coding_method,
- DC_COEFF(i), dequantizer[0]);
-
if(s->avctx->idct_algo==FF_IDCT_VP3){
Coeff *coeff= s->coeffs + i;
- memset(block, 0, sizeof(block));
+ s->dsp.clear_block(block);
while(coeff->next){
block[coeff->index]= coeff->coeff * dequantizer[coeff->index];
coeff= coeff->next;
}
}else{
Coeff *coeff= s->coeffs + i;
- memset(block, 0, sizeof(block));
+ s->dsp.clear_block(block);
while(coeff->next){
block[coeff->index]= (coeff->coeff * dequantizer[coeff->index] + 2)>>2;
coeff= coeff->next;
}
/* invert DCT and place (or add) in final output */
-
+
if (s->all_fragments[i].coding_method == MODE_INTRA) {
if(s->avctx->idct_algo!=FF_IDCT_VP3)
block[0] += 128<<3;
stride,
block);
}
-
- debug_idct("block after idct_%s():\n",
- (s->all_fragments[i].coding_method == MODE_INTRA)?
- "put" : "add");
- for (m = 0; m < 8; m++) {
- for (n = 0; n < 8; n++) {
- debug_idct(" %3d", *(output_plane +
- s->all_fragments[i].first_pixel + (m * stride + n)));
- }
- debug_idct("\n");
- }
- debug_idct("\n");
-
} else {
/* copy directly from the previous frame */
(s->all_fragments[i - 1].coding_method != MODE_COPY)) )) {
horizontal_filter(
output_plane + s->all_fragments[i].first_pixel + 7*stride,
- -stride, bounding_values);
+ -stride, s->bounding_values_array + 127);
}
/* perform the top edge filter if:
(s->all_fragments[i - fragment_width].coding_method != MODE_COPY)) )) {
vertical_filter(
output_plane + s->all_fragments[i].first_pixel - stride,
- -stride, bounding_values);
+ -stride, s->bounding_values_array + 127);
}
#endif
}
emms_c();
}
-static void horizontal_filter(unsigned char *first_pixel, int stride,
- int *bounding_values)
-{
- unsigned char *end;
- int filter_value;
-
- for (end= first_pixel + 8*stride; first_pixel < end; first_pixel += stride) {
- filter_value =
- (first_pixel[-2] - first_pixel[ 1])
- +3*(first_pixel[ 0] - first_pixel[-1]);
- filter_value = bounding_values[(filter_value + 4) >> 3];
- first_pixel[-1] = clip_uint8(first_pixel[-1] + filter_value);
- first_pixel[ 0] = clip_uint8(first_pixel[ 0] - filter_value);
- }
-}
-
-static void vertical_filter(unsigned char *first_pixel, int stride,
- int *bounding_values)
-{
- unsigned char *end;
- int filter_value;
- const int nstride= -stride;
-
- for (end= first_pixel + 8; first_pixel < end; first_pixel++) {
- filter_value =
- (first_pixel[2 * nstride] - first_pixel[ stride])
- +3*(first_pixel[0 ] - first_pixel[nstride]);
- filter_value = bounding_values[(filter_value + 4) >> 3];
- first_pixel[nstride] = clip_uint8(first_pixel[nstride] + filter_value);
- first_pixel[0] = clip_uint8(first_pixel[0] - filter_value);
- }
-}
-
static void apply_loop_filter(Vp3DecodeContext *s)
{
- int x, y, plane;
- int width, height;
- int fragment;
- int stride;
- unsigned char *plane_data;
+ int plane;
+ int x, y;
int *bounding_values= s->bounding_values_array+127;
#if 0
#endif
for (plane = 0; plane < 3; plane++) {
-
- if (plane == 0) {
- /* Y plane parameters */
- fragment = 0;
- width = s->fragment_width;
- height = s->fragment_height;
- stride = s->current_frame.linesize[0];
- plane_data = s->current_frame.data[0];
- } else if (plane == 1) {
- /* U plane parameters */
- fragment = s->u_fragment_start;
- width = s->fragment_width / 2;
- height = s->fragment_height / 2;
- stride = s->current_frame.linesize[1];
- plane_data = s->current_frame.data[1];
- } else {
- /* V plane parameters */
- fragment = s->v_fragment_start;
- width = s->fragment_width / 2;
- height = s->fragment_height / 2;
- stride = s->current_frame.linesize[2];
- plane_data = s->current_frame.data[2];
- }
+ int width = s->fragment_width >> !!plane;
+ int height = s->fragment_height >> !!plane;
+ int fragment = s->fragment_start [plane];
+ int stride = s->current_frame.linesize[plane];
+ uint8_t *plane_data = s->current_frame.data [plane];
+ if (!s->flipped_image) stride = -stride;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
-START_TIMER
/* do not perform left edge filter for left columns frags */
if ((x > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
- horizontal_filter(
- plane_data + s->all_fragments[fragment].first_pixel - 7*stride,
+ s->dsp.vp3_h_loop_filter(
+ plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
/* do not perform top edge filter for top row fragments */
if ((y > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
- vertical_filter(
- plane_data + s->all_fragments[fragment].first_pixel + stride,
+ s->dsp.vp3_v_loop_filter(
+ plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
if ((x < width - 1) &&
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + 1].coding_method == MODE_COPY)) {
- horizontal_filter(
- plane_data + s->all_fragments[fragment + 1].first_pixel - 7*stride,
+ s->dsp.vp3_h_loop_filter(
+ plane_data + s->all_fragments[fragment + 1].first_pixel,
stride, bounding_values);
}
if ((y < height - 1) &&
(s->all_fragments[fragment].coding_method != MODE_COPY) &&
(s->all_fragments[fragment + width].coding_method == MODE_COPY)) {
- vertical_filter(
- plane_data + s->all_fragments[fragment + width].first_pixel + stride,
+ s->dsp.vp3_v_loop_filter(
+ plane_data + s->all_fragments[fragment + width].first_pixel,
stride, bounding_values);
}
fragment++;
-STOP_TIMER("loop filter")
}
}
}
}
-/*
+/*
* This function computes the first pixel addresses for each fragment.
* This function needs to be invoked after the first frame is allocated
* so that it has access to the plane strides.
*/
-static void vp3_calculate_pixel_addresses(Vp3DecodeContext *s)
-{
-
- int i, x, y;
-
- /* figure out the first pixel addresses for each of the fragments */
- /* Y plane */
- i = 0;
- for (y = s->fragment_height; y > 0; y--) {
- for (x = 0; x < s->fragment_width; x++) {
- s->all_fragments[i++].first_pixel =
- s->golden_frame.linesize[0] * y * FRAGMENT_PIXELS -
- s->golden_frame.linesize[0] +
- x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
- }
- }
-
- /* U plane */
- i = s->u_fragment_start;
- for (y = s->fragment_height / 2; y > 0; y--) {
- for (x = 0; x < s->fragment_width / 2; x++) {
- s->all_fragments[i++].first_pixel =
- s->golden_frame.linesize[1] * y * FRAGMENT_PIXELS -
- s->golden_frame.linesize[1] +
- x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
- }
- }
-
- /* V plane */
- i = s->v_fragment_start;
- for (y = s->fragment_height / 2; y > 0; y--) {
- for (x = 0; x < s->fragment_width / 2; x++) {
- s->all_fragments[i++].first_pixel =
- s->golden_frame.linesize[2] * y * FRAGMENT_PIXELS -
- s->golden_frame.linesize[2] +
- x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
- }
- }
-}
-
-/* FIXME: this should be merged with the above! */
-static void theora_calculate_pixel_addresses(Vp3DecodeContext *s)
+static void vp3_calculate_pixel_addresses(Vp3DecodeContext *s)
{
+#define Y_INITIAL(chroma_shift) s->flipped_image ? 1 : s->fragment_height >> chroma_shift
+#define Y_FINISHED(chroma_shift) s->flipped_image ? y <= s->fragment_height >> chroma_shift : y > 0
int i, x, y;
+ const int y_inc = s->flipped_image ? 1 : -1;
/* figure out the first pixel addresses for each of the fragments */
/* Y plane */
i = 0;
- for (y = 1; y <= s->fragment_height; y++) {
+ for (y = Y_INITIAL(0); Y_FINISHED(0); y += y_inc) {
for (x = 0; x < s->fragment_width; x++) {
- s->all_fragments[i++].first_pixel =
+ s->all_fragments[i++].first_pixel =
s->golden_frame.linesize[0] * y * FRAGMENT_PIXELS -
s->golden_frame.linesize[0] +
x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
}
}
/* U plane */
- i = s->u_fragment_start;
- for (y = 1; y <= s->fragment_height / 2; y++) {
+ i = s->fragment_start[1];
+ for (y = Y_INITIAL(1); Y_FINISHED(1); y += y_inc) {
for (x = 0; x < s->fragment_width / 2; x++) {
- s->all_fragments[i++].first_pixel =
+ s->all_fragments[i++].first_pixel =
s->golden_frame.linesize[1] * y * FRAGMENT_PIXELS -
s->golden_frame.linesize[1] +
x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
}
}
/* V plane */
- i = s->v_fragment_start;
- for (y = 1; y <= s->fragment_height / 2; y++) {
+ i = s->fragment_start[2];
+ for (y = Y_INITIAL(1); Y_FINISHED(1); y += y_inc) {
for (x = 0; x < s->fragment_width / 2; x++) {
- s->all_fragments[i++].first_pixel =
+ s->all_fragments[i++].first_pixel =
s->golden_frame.linesize[2] * y * FRAGMENT_PIXELS -
s->golden_frame.linesize[2] +
x * FRAGMENT_PIXELS;
- debug_init(" fragment %d, first pixel @ %d\n",
- i-1, s->all_fragments[i-1].first_pixel);
}
}
}
/*
* This is the ffmpeg/libavcodec API init function.
*/
-static int vp3_decode_init(AVCodecContext *avctx)
+static av_cold int vp3_decode_init(AVCodecContext *avctx)
{
Vp3DecodeContext *s = avctx->priv_data;
- int i;
+ int i, inter, plane;
int c_width;
int c_height;
int y_superblock_count;
int c_superblock_count;
if (avctx->codec_tag == MKTAG('V','P','3','0'))
- s->version = 0;
+ s->version = 0;
else
- s->version = 1;
+ s->version = 1;
s->avctx = avctx;
s->width = (avctx->width + 15) & 0xFFFFFFF0;
s->height = (avctx->height + 15) & 0xFFFFFFF0;
avctx->pix_fmt = PIX_FMT_YUV420P;
- avctx->has_b_frames = 0;
+ avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
if(avctx->idct_algo==FF_IDCT_AUTO)
avctx->idct_algo=FF_IDCT_VP3;
dsputil_init(&s->dsp, avctx);
-
+
ff_init_scantable(s->dsp.idct_permutation, &s->scantable, ff_zigzag_direct);
/* initialize to an impossible value which will force a recalculation
/* fragment count covers all 8x8 blocks for all 3 planes */
s->fragment_count = s->fragment_width * s->fragment_height * 3 / 2;
- s->u_fragment_start = s->fragment_width * s->fragment_height;
- s->v_fragment_start = s->fragment_width * s->fragment_height * 5 / 4;
-
- debug_init(" Y plane: %d x %d\n", s->width, s->height);
- debug_init(" C plane: %d x %d\n", c_width, c_height);
- debug_init(" Y superblocks: %d x %d, %d total\n",
- s->y_superblock_width, s->y_superblock_height, y_superblock_count);
- debug_init(" C superblocks: %d x %d, %d total\n",
- s->c_superblock_width, s->c_superblock_height, c_superblock_count);
- debug_init(" total superblocks = %d, U starts @ %d, V starts @ %d\n",
- s->superblock_count, s->u_superblock_start, s->v_superblock_start);
- debug_init(" macroblocks: %d x %d, %d total\n",
- s->macroblock_width, s->macroblock_height, s->macroblock_count);
- debug_init(" %d fragments, %d x %d, u starts @ %d, v starts @ %d\n",
- s->fragment_count,
- s->fragment_width,
- s->fragment_height,
- s->u_fragment_start,
- s->v_fragment_start);
+ s->fragment_start[1] = s->fragment_width * s->fragment_height;
+ s->fragment_start[2] = s->fragment_width * s->fragment_height * 5 / 4;
s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
+ s->coeff_counts = av_malloc(s->fragment_count * sizeof(*s->coeff_counts));
s->coeffs = av_malloc(s->fragment_count * sizeof(Coeff) * 65);
s->coded_fragment_list = av_malloc(s->fragment_count * sizeof(int));
- s->pixel_addresses_inited = 0;
+ s->pixel_addresses_initialized = 0;
if (!s->theora_tables)
{
- for (i = 0; i < 64; i++)
- s->coded_dc_scale_factor[i] = vp31_dc_scale_factor[i];
- for (i = 0; i < 64; i++)
- s->coded_ac_scale_factor[i] = vp31_ac_scale_factor[i];
- for (i = 0; i < 64; i++)
- s->coded_intra_y_dequant[i] = vp31_intra_y_dequant[i];
- for (i = 0; i < 64; i++)
- s->coded_intra_c_dequant[i] = vp31_intra_c_dequant[i];
- for (i = 0; i < 64; i++)
- s->coded_inter_dequant[i] = vp31_inter_dequant[i];
- for (i = 0; i < 64; i++)
- s->filter_limit_values[i] = vp31_filter_limit_values[i];
+ for (i = 0; i < 64; i++) {
+ s->coded_dc_scale_factor[i] = vp31_dc_scale_factor[i];
+ s->coded_ac_scale_factor[i] = vp31_ac_scale_factor[i];
+ s->base_matrix[0][i] = vp31_intra_y_dequant[i];
+ s->base_matrix[1][i] = vp31_intra_c_dequant[i];
+ s->base_matrix[2][i] = vp31_inter_dequant[i];
+ s->filter_limit_values[i] = vp31_filter_limit_values[i];
+ }
+
+ for(inter=0; inter<2; inter++){
+ for(plane=0; plane<3; plane++){
+ s->qr_count[inter][plane]= 1;
+ s->qr_size [inter][plane][0]= 63;
+ s->qr_base [inter][plane][0]=
+ s->qr_base [inter][plane][1]= 2*inter + (!!plane)*!inter;
+ }
+ }
/* init VLC tables */
for (i = 0; i < 16; i++) {
/*
* This is the ffmpeg/libavcodec API frame decode function.
*/
-static int vp3_decode_frame(AVCodecContext *avctx,
+static int vp3_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
Vp3DecodeContext *s = avctx->priv_data;
GetBitContext gb;
static int counter = 0;
int i;
init_get_bits(&gb, buf, buf_size * 8);
-
+
if (s->theora && get_bits1(&gb))
{
- int ptype = get_bits(&gb, 7);
-
- skip_bits(&gb, 6*8); /* "theora" */
-
- switch(ptype)
- {
- case 1:
- theora_decode_comments(avctx, gb);
- break;
- case 2:
- theora_decode_tables(avctx, gb);
- init_dequantizer(s);
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "Unknown Theora config packet: %d\n", ptype);
- }
- return buf_size;
+ av_log(avctx, AV_LOG_ERROR, "Header packet passed to frame decoder, skipping\n");
+ return -1;
}
s->keyframe = !get_bits1(&gb);
if (!s->theora)
- skip_bits(&gb, 1);
+ skip_bits(&gb, 1);
s->last_quality_index = s->quality_index;
- s->quality_index = get_bits(&gb, 6);
- if (s->theora >= 0x030200)
- skip_bits1(&gb);
+
+ s->nqis=0;
+ do{
+ s->qis[s->nqis++]= get_bits(&gb, 6);
+ } while(s->theora >= 0x030200 && s->nqis<3 && get_bits1(&gb));
+
+ s->quality_index= s->qis[0];
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
- av_log(s->avctx, AV_LOG_INFO, " VP3 %sframe #%d: Q index = %d\n",
- s->keyframe?"key":"", counter, s->quality_index);
+ av_log(s->avctx, AV_LOG_INFO, " VP3 %sframe #%d: Q index = %d\n",
+ s->keyframe?"key":"", counter, s->quality_index);
counter++;
if (s->quality_index != s->last_quality_index) {
init_loop_filter(s);
}
+ if (avctx->skip_frame >= AVDISCARD_NONKEY && !s->keyframe)
+ return buf_size;
+
if (s->keyframe) {
- if (!s->theora)
- {
- skip_bits(&gb, 4); /* width code */
- skip_bits(&gb, 4); /* height code */
- if (s->version)
- {
- s->version = get_bits(&gb, 5);
- if (counter == 1)
- av_log(s->avctx, AV_LOG_DEBUG, "VP version: %d\n", s->version);
- }
- }
- if (s->version || s->theora)
- {
- if (get_bits1(&gb))
- av_log(s->avctx, AV_LOG_ERROR, "Warning, unsupported keyframe coding type?!\n");
- skip_bits(&gb, 2); /* reserved? */
- }
+ if (!s->theora)
+ {
+ skip_bits(&gb, 4); /* width code */
+ skip_bits(&gb, 4); /* height code */
+ if (s->version)
+ {
+ s->version = get_bits(&gb, 5);
+ if (counter == 1)
+ av_log(s->avctx, AV_LOG_DEBUG, "VP version: %d\n", s->version);
+ }
+ }
+ if (s->version || s->theora)
+ {
+ if (get_bits1(&gb))
+ av_log(s->avctx, AV_LOG_ERROR, "Warning, unsupported keyframe coding type?!\n");
+ skip_bits(&gb, 2); /* reserved? */
+ }
if (s->last_frame.data[0] == s->golden_frame.data[0]) {
if (s->golden_frame.data[0])
}
/* golden frame is also the current frame */
- memcpy(&s->current_frame, &s->golden_frame, sizeof(AVFrame));
+ s->current_frame= s->golden_frame;
/* time to figure out pixel addresses? */
- if (!s->pixel_addresses_inited)
- {
- if (!s->flipped_image)
- vp3_calculate_pixel_addresses(s);
- else
- theora_calculate_pixel_addresses(s);
- }
+ if (!s->pixel_addresses_initialized)
+ {
+ vp3_calculate_pixel_addresses(s);
+ s->pixel_addresses_initialized = 1;
+ }
} else {
/* allocate a new current frame */
s->current_frame.reference = 3;
+ if (!s->pixel_addresses_initialized) {
+ av_log(s->avctx, AV_LOG_ERROR, "vp3: first frame not a keyframe\n");
+ return -1;
+ }
if(avctx->get_buffer(avctx, &s->current_frame) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "vp3: get_buffer() failed\n");
return -1;
s->current_frame.qscale_table= s->qscale_table; //FIXME allocate individual tables per AVFrame
s->current_frame.qstride= 0;
- {START_TIMER
init_frame(s, &gb);
- STOP_TIMER("init_frame")}
-
-#if KEYFRAMES_ONLY
-if (!s->keyframe) {
-
- memcpy(s->current_frame.data[0], s->golden_frame.data[0],
- s->current_frame.linesize[0] * s->height);
- memcpy(s->current_frame.data[1], s->golden_frame.data[1],
- s->current_frame.linesize[1] * s->height / 2);
- memcpy(s->current_frame.data[2], s->golden_frame.data[2],
- s->current_frame.linesize[2] * s->height / 2);
-
-} else {
-#endif
- {START_TIMER
if (unpack_superblocks(s, &gb)){
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_superblocks\n");
return -1;
}
- STOP_TIMER("unpack_superblocks")}
- {START_TIMER
if (unpack_modes(s, &gb)){
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_modes\n");
return -1;
}
- STOP_TIMER("unpack_modes")}
- {START_TIMER
if (unpack_vectors(s, &gb)){
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_vectors\n");
return -1;
}
- STOP_TIMER("unpack_vectors")}
- {START_TIMER
if (unpack_dct_coeffs(s, &gb)){
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_dct_coeffs\n");
return -1;
}
- STOP_TIMER("unpack_dct_coeffs")}
- {START_TIMER
reverse_dc_prediction(s, 0, s->fragment_width, s->fragment_height);
if ((avctx->flags & CODEC_FLAG_GRAY) == 0) {
- reverse_dc_prediction(s, s->u_fragment_start,
+ reverse_dc_prediction(s, s->fragment_start[1],
s->fragment_width / 2, s->fragment_height / 2);
- reverse_dc_prediction(s, s->v_fragment_start,
+ reverse_dc_prediction(s, s->fragment_start[2],
s->fragment_width / 2, s->fragment_height / 2);
}
- STOP_TIMER("reverse_dc_prediction")}
- {START_TIMER
for (i = 0; i < s->macroblock_height; i++)
render_slice(s, i);
- STOP_TIMER("render_fragments")}
- {START_TIMER
apply_loop_filter(s);
- STOP_TIMER("apply_loop_filter")}
-#if KEYFRAMES_ONLY
-}
-#endif
*data_size=sizeof(AVFrame);
*(AVFrame*)data= s->current_frame;
avctx->release_buffer(avctx, &s->last_frame);
/* shuffle frames (last = current) */
- memcpy(&s->last_frame, &s->current_frame, sizeof(AVFrame));
+ s->last_frame= s->current_frame;
s->current_frame.data[0]= NULL; /* ensure that we catch any access to this released frame */
return buf_size;
/*
* This is the ffmpeg/libavcodec API module cleanup function.
*/
-static int vp3_decode_end(AVCodecContext *avctx)
+static av_cold int vp3_decode_end(AVCodecContext *avctx)
{
Vp3DecodeContext *s = avctx->priv_data;
+ int i;
+ av_free(s->superblock_coding);
av_free(s->all_fragments);
+ av_free(s->coeff_counts);
av_free(s->coeffs);
av_free(s->coded_fragment_list);
av_free(s->superblock_fragments);
av_free(s->superblock_macroblocks);
av_free(s->macroblock_fragments);
av_free(s->macroblock_coding);
-
+
+ for (i = 0; i < 16; i++) {
+ free_vlc(&s->dc_vlc[i]);
+ free_vlc(&s->ac_vlc_1[i]);
+ free_vlc(&s->ac_vlc_2[i]);
+ free_vlc(&s->ac_vlc_3[i]);
+ free_vlc(&s->ac_vlc_4[i]);
+ }
+
+ free_vlc(&s->superblock_run_length_vlc);
+ free_vlc(&s->fragment_run_length_vlc);
+ free_vlc(&s->mode_code_vlc);
+ free_vlc(&s->motion_vector_vlc);
+
/* release all frames */
if (s->golden_frame.data[0] && s->golden_frame.data[0] != s->last_frame.data[0])
avctx->release_buffer(avctx, &s->golden_frame);
{
Vp3DecodeContext *s = avctx->priv_data;
- if (get_bits(gb, 1)) {
+ if (get_bits1(gb)) {
int token;
if (s->entries >= 32) { /* overflow */
av_log(avctx, AV_LOG_ERROR, "huffman tree overflow\n");
}
s->huff_code_size++;
s->hbits <<= 1;
- read_huffman_tree(avctx, gb);
+ if (read_huffman_tree(avctx, gb))
+ return -1;
s->hbits |= 1;
- read_huffman_tree(avctx, gb);
+ if (read_huffman_tree(avctx, gb))
+ return -1;
s->hbits >>= 1;
s->huff_code_size--;
}
return 0;
}
-static int theora_decode_header(AVCodecContext *avctx, GetBitContext gb)
+#if CONFIG_THEORA_DECODER
+static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
- int major, minor, micro;
-
- major = get_bits(&gb, 8); /* version major */
- minor = get_bits(&gb, 8); /* version minor */
- micro = get_bits(&gb, 8); /* version micro */
- av_log(avctx, AV_LOG_INFO, "Theora bitstream version %d.%d.%d\n",
- major, minor, micro);
+ int visible_width, visible_height;
- /* FIXME: endianess? */
- s->theora = (major << 16) | (minor << 8) | micro;
+ s->theora = get_bits_long(gb, 24);
+ av_log(avctx, AV_LOG_DEBUG, "Theora bitstream version %X\n", s->theora);
/* 3.2.0 aka alpha3 has the same frame orientation as original vp3 */
/* but previous versions have the image flipped relative to vp3 */
if (s->theora < 0x030200)
{
- s->flipped_image = 1;
+ s->flipped_image = 1;
av_log(avctx, AV_LOG_DEBUG, "Old (<alpha3) Theora bitstream, flipped image\n");
}
- s->width = get_bits(&gb, 16) << 4;
- s->height = get_bits(&gb, 16) << 4;
-
+ visible_width = s->width = get_bits(gb, 16) << 4;
+ visible_height = s->height = get_bits(gb, 16) << 4;
+
if(avcodec_check_dimensions(avctx, s->width, s->height)){
+ av_log(avctx, AV_LOG_ERROR, "Invalid dimensions (%dx%d)\n", s->width, s->height);
s->width= s->height= 0;
return -1;
}
-
- skip_bits(&gb, 24); /* frame width */
- skip_bits(&gb, 24); /* frame height */
-
- skip_bits(&gb, 8); /* offset x */
- skip_bits(&gb, 8); /* offset y */
-
- skip_bits(&gb, 32); /* fps numerator */
- skip_bits(&gb, 32); /* fps denumerator */
- skip_bits(&gb, 24); /* aspect numerator */
- skip_bits(&gb, 24); /* aspect denumerator */
-
- if (s->theora < 0x030200)
- skip_bits(&gb, 5); /* keyframe frequency force */
- skip_bits(&gb, 8); /* colorspace */
- skip_bits(&gb, 24); /* bitrate */
- skip_bits(&gb, 6); /* last(?) quality index */
-
- if (s->theora >= 0x030200)
+ if (s->theora >= 0x030400)
{
- skip_bits(&gb, 5); /* keyframe frequency force */
- skip_bits(&gb, 5); /* spare bits */
+ skip_bits(gb, 32); /* total number of superblocks in a frame */
+ // fixme, the next field is 36bits long
+ skip_bits(gb, 32); /* total number of blocks in a frame */
+ skip_bits(gb, 4); /* total number of blocks in a frame */
+ skip_bits(gb, 32); /* total number of macroblocks in a frame */
}
-
-// align_get_bits(&gb);
-
- avctx->width = s->width;
- avctx->height = s->height;
- return 0;
-}
+ if (s->theora >= 0x030200) {
+ visible_width = get_bits_long(gb, 24);
+ visible_height = get_bits_long(gb, 24);
-static int theora_decode_comments(AVCodecContext *avctx, GetBitContext gb)
-{
- int nb_comments, i, tmp;
+ skip_bits(gb, 8); /* offset x */
+ skip_bits(gb, 8); /* offset y */
+ }
+
+ skip_bits(gb, 32); /* fps numerator */
+ skip_bits(gb, 32); /* fps denumerator */
+ skip_bits(gb, 24); /* aspect numerator */
+ skip_bits(gb, 24); /* aspect denumerator */
- tmp = get_bits_long(&gb, 32);
- tmp = be2me_32(tmp);
- while(tmp--)
- skip_bits(&gb, 8);
+ if (s->theora < 0x030200)
+ skip_bits(gb, 5); /* keyframe frequency force */
+ skip_bits(gb, 8); /* colorspace */
+ if (s->theora >= 0x030400)
+ skip_bits(gb, 2); /* pixel format: 420,res,422,444 */
+ skip_bits(gb, 24); /* bitrate */
+
+ skip_bits(gb, 6); /* quality hint */
- nb_comments = get_bits_long(&gb, 32);
- nb_comments = be2me_32(nb_comments);
- for (i = 0; i < nb_comments; i++)
+ if (s->theora >= 0x030200)
{
- tmp = get_bits_long(&gb, 32);
- tmp = be2me_32(tmp);
- while(tmp--)
- skip_bits(&gb, 8);
+ skip_bits(gb, 5); /* keyframe frequency force */
+
+ if (s->theora < 0x030400)
+ skip_bits(gb, 5); /* spare bits */
}
-
+
+// align_get_bits(gb);
+
+ if ( visible_width <= s->width && visible_width > s->width-16
+ && visible_height <= s->height && visible_height > s->height-16)
+ avcodec_set_dimensions(avctx, visible_width, visible_height);
+ else
+ avcodec_set_dimensions(avctx, s->width, s->height);
+
return 0;
}
-static int theora_decode_tables(AVCodecContext *avctx, GetBitContext gb)
+static int theora_decode_tables(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
- int i, n;
+ int i, n, matrices, inter, plane;
if (s->theora >= 0x030200) {
- n = get_bits(&gb, 3);
+ n = get_bits(gb, 3);
/* loop filter limit values table */
for (i = 0; i < 64; i++)
- s->filter_limit_values[i] = get_bits(&gb, n);
+ s->filter_limit_values[i] = get_bits(gb, n);
}
-
+
if (s->theora >= 0x030200)
- n = get_bits(&gb, 4) + 1;
+ n = get_bits(gb, 4) + 1;
else
n = 16;
/* quality threshold table */
for (i = 0; i < 64; i++)
- s->coded_ac_scale_factor[i] = get_bits(&gb, n);
+ s->coded_ac_scale_factor[i] = get_bits(gb, n);
if (s->theora >= 0x030200)
- n = get_bits(&gb, 4) + 1;
+ n = get_bits(gb, 4) + 1;
else
n = 16;
/* dc scale factor table */
for (i = 0; i < 64; i++)
- s->coded_dc_scale_factor[i] = get_bits(&gb, n);
+ s->coded_dc_scale_factor[i] = get_bits(gb, n);
if (s->theora >= 0x030200)
- n = get_bits(&gb, 9) + 1;
+ matrices = get_bits(gb, 9) + 1;
else
- n = 3;
- if (n != 3) {
- av_log(NULL,AV_LOG_ERROR, "unsupported nbms : %d\n", n);
+ matrices = 3;
+
+ if(matrices > 384){
+ av_log(avctx, AV_LOG_ERROR, "invalid number of base matrixes\n");
return -1;
}
- /* y coeffs */
- for (i = 0; i < 64; i++)
- s->coded_intra_y_dequant[i] = get_bits(&gb, 8);
- /* uv coeffs */
- for (i = 0; i < 64; i++)
- s->coded_intra_c_dequant[i] = get_bits(&gb, 8);
-
- /* inter coeffs */
- for (i = 0; i < 64; i++)
- s->coded_inter_dequant[i] = get_bits(&gb, 8);
+ for(n=0; n<matrices; n++){
+ for (i = 0; i < 64; i++)
+ s->base_matrix[n][i]= get_bits(gb, 8);
+ }
- /* Huffman tables */
- for (i = 0; i <= 1; i++) {
- for (n = 0; n <= 2; n++) {
- int newqr;
- if (i > 0 || n > 0)
- newqr = get_bits(&gb, 1);
- else
- newqr = 1;
+ for (inter = 0; inter <= 1; inter++) {
+ for (plane = 0; plane <= 2; plane++) {
+ int newqr= 1;
+ if (inter || plane > 0)
+ newqr = get_bits1(gb);
if (!newqr) {
- if (i > 0)
- get_bits(&gb, 1);
- }
- else {
+ int qtj, plj;
+ if(inter && get_bits1(gb)){
+ qtj = 0;
+ plj = plane;
+ }else{
+ qtj= (3*inter + plane - 1) / 3;
+ plj= (plane + 2) % 3;
+ }
+ s->qr_count[inter][plane]= s->qr_count[qtj][plj];
+ memcpy(s->qr_size[inter][plane], s->qr_size[qtj][plj], sizeof(s->qr_size[0][0]));
+ memcpy(s->qr_base[inter][plane], s->qr_base[qtj][plj], sizeof(s->qr_base[0][0]));
+ } else {
+ int qri= 0;
int qi = 0;
- skip_bits(&gb, av_log2(2)+1);
- while (qi < 63) {
- qi += get_bits(&gb, av_log2(63-qi)+1) + 1;
- skip_bits(&gb, av_log2(2)+1);
+
+ for(;;){
+ i= get_bits(gb, av_log2(matrices-1)+1);
+ if(i>= matrices){
+ av_log(avctx, AV_LOG_ERROR, "invalid base matrix index\n");
+ return -1;
+ }
+ s->qr_base[inter][plane][qri]= i;
+ if(qi >= 63)
+ break;
+ i = get_bits(gb, av_log2(63-qi)+1) + 1;
+ s->qr_size[inter][plane][qri++]= i;
+ qi += i;
+ }
+
+ if (qi > 63) {
+ av_log(avctx, AV_LOG_ERROR, "invalid qi %d > 63\n", qi);
+ return -1;
}
- if (qi > 63)
- av_log(NULL, AV_LOG_ERROR, "error...\n");
+ s->qr_count[inter][plane]= qri;
}
}
}
+ /* Huffman tables */
for (s->hti = 0; s->hti < 80; s->hti++) {
s->entries = 0;
s->huff_code_size = 1;
- if (!get_bits(&gb, 1)) {
+ if (!get_bits1(gb)) {
s->hbits = 0;
- read_huffman_tree(avctx, &gb);
+ if(read_huffman_tree(avctx, gb))
+ return -1;
s->hbits = 1;
- read_huffman_tree(avctx, &gb);
+ if(read_huffman_tree(avctx, gb))
+ return -1;
}
}
-
+
s->theora_tables = 1;
-
+
return 0;
}
-static int theora_decode_init(AVCodecContext *avctx)
+static av_cold int theora_decode_init(AVCodecContext *avctx)
{
Vp3DecodeContext *s = avctx->priv_data;
GetBitContext gb;
int ptype;
- uint8_t *p= avctx->extradata;
- int op_bytes, i;
-
+ uint8_t *header_start[3];
+ int header_len[3];
+ int i;
+
s->theora = 1;
if (!avctx->extradata_size)
- return -1;
+ {
+ av_log(avctx, AV_LOG_ERROR, "Missing extradata!\n");
+ return -1;
+ }
- for(i=0;i<3;i++) {
- op_bytes = *(p++)<<8;
- op_bytes += *(p++);
+ if (ff_split_xiph_headers(avctx->extradata, avctx->extradata_size,
+ 42, header_start, header_len) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Corrupt extradata\n");
+ return -1;
+ }
- init_get_bits(&gb, p, op_bytes);
- p += op_bytes;
+ for(i=0;i<3;i++) {
+ init_get_bits(&gb, header_start[i], header_len[i]);
ptype = get_bits(&gb, 8);
- debug_vp3("Theora headerpacket type: %x\n", ptype);
-
- if (!(ptype & 0x80))
- return -1;
-
+
+ if (!(ptype & 0x80))
+ {
+ av_log(avctx, AV_LOG_ERROR, "Invalid extradata!\n");
+// return -1;
+ }
+
+ // FIXME: Check for this as well.
skip_bits(&gb, 6*8); /* "theora" */
-
+
switch(ptype)
{
case 0x80:
- theora_decode_header(avctx, gb);
- break;
- case 0x81:
- theora_decode_comments(avctx, gb);
- break;
- case 0x82:
- theora_decode_tables(avctx, gb);
- break;
+ theora_decode_header(avctx, &gb);
+ break;
+ case 0x81:
+// FIXME: is this needed? it breaks sometimes
+// theora_decode_comments(avctx, gb);
+ break;
+ case 0x82:
+ if (theora_decode_tables(avctx, &gb))
+ return -1;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Unknown Theora config packet: %d\n", ptype&~0x80);
+ break;
}
+ if(ptype != 0x81 && 8*header_len[i] != get_bits_count(&gb))
+ av_log(avctx, AV_LOG_WARNING, "%d bits left in packet %X\n", 8*header_len[i] - get_bits_count(&gb), ptype);
+ if (s->theora < 0x030200)
+ break;
}
vp3_decode_init(avctx);
return 0;
}
-AVCodec vp3_decoder = {
- "vp3",
+AVCodec theora_decoder = {
+ "theora",
CODEC_TYPE_VIDEO,
- CODEC_ID_VP3,
+ CODEC_ID_THEORA,
sizeof(Vp3DecodeContext),
- vp3_decode_init,
+ theora_decode_init,
NULL,
vp3_decode_end,
vp3_decode_frame,
0,
- NULL
+ NULL,
+ .long_name = NULL_IF_CONFIG_SMALL("Theora"),
};
+#endif
-#ifndef CONFIG_LIBTHEORA
-AVCodec theora_decoder = {
- "theora",
+AVCodec vp3_decoder = {
+ "vp3",
CODEC_TYPE_VIDEO,
- CODEC_ID_THEORA,
+ CODEC_ID_VP3,
sizeof(Vp3DecodeContext),
- theora_decode_init,
+ vp3_decode_init,
NULL,
vp3_decode_end,
vp3_decode_frame,
0,
- NULL
+ NULL,
+ .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
};
-#endif
projects / frescor / ffmpeg.git / blobdiff