/*
* 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
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
*
* 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 "bitstream.h"
#include "vp3data.h"
+#include "xiph.h"
#define FRAGMENT_PIXELS 8
/* 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;
DSPContext dsp;
int flipped_image;
+ int qis[3];
+ int nqis;
int quality_index;
int last_quality_index;
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;
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];
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
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 bounding_values_array[256];
} Vp3DecodeContext;
-static int theora_decode_tables(AVCodecContext *avctx, GetBitContext *gb);
-
/************************************************************************
* VP3 specific functions
************************************************************************/
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;
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;
current_height = 0;
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;
current_height = 0;
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) {
current_height = 0;
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];
current_width = -1;
current_height = 0;
superblock_row_inc = s->macroblock_width -
- (s->y_superblock_width * 2 - s->macroblock_width);;
+ (s->y_superblock_width * 2 - s->macroblock_width);
hilbert = hilbert_walk_mb;
mapping_index = 0;
current_macroblock = -1;
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;
/* 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;
{
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, plane, inter, qri, bmi, bmj, qistart;
+ int i, plane, inter, qri, bmi, bmj, qistart;
debug_vp3(" vp3: initializing dequantization tables\n");
int qmin= 8<<(inter + !i);
int qscale= i ? ac_scale_factor : dc_scale_factor;
- s->qmat[inter][plane][i]= clip((qscale * coeff)/100 * 4, qmin, 4096);
+ s->qmat[inter][plane][i]= av_clip((qscale * coeff)/100 * 4, qmin, 4096);
}
}
}
} else {
/* unpack the list of partially-coded superblocks */
- bit = get_bits(gb, 1);
+ 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;
current_superblock = 0;
current_run = 0;
- bit = get_bits(gb, 1);
+ 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 (decode_partial_blocks) {
current_run = 0;
- bit = get_bits(gb, 1);
+ 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;
s->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
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->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
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;
memset(motion_y, 0, 6 * sizeof(int));
/* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
- coding_mode = get_bits(gb, 1);
+ coding_mode = get_bits1(gb);
debug_vectors(" using %s scheme for unpacking motion vectors\n",
(coding_mode == 0) ? "VLC" : "fixed-length");
}
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 */
}
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;
+ s->coeff_counts[fragment_num] |= 128;
debug_vlc(" fragment %d eob with %d coefficients\n",
- s->coded_fragment_list[i], fragment->coeff_count&127);
+ s->coded_fragment_list[i], s->coeff_counts[fragment_num]&127);
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);
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);
(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 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;
/*
* 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
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);
- 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);
+ debug_dc_pred(" frag %d: orig DC = %d, ",
+ i, DC_COEFF(i));
- 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 */
+ transform= 0;
+ if(x){
+ l= i-1;
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);
(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;
}
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 render_slice(Vp3DecodeContext *s, int slice)
{
- int x, y;
+ int x;
int m, n;
- int i; /* indicates current fragment */
int16_t *dequantizer;
DECLARE_ALIGNED_16(DCTELEM, block[64]);
- unsigned char *output_plane;
- unsigned char *last_plane;
- unsigned char *golden_plane;
- int stride;
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];
+
+ if (!s->flipped_image) stride = -stride;
- /* 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(FFABS(stride) > 2048)
return; //various tables are fixed size
/* for each fragment row in the slice (both of them)... */
(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
}
unsigned char *end;
int filter_value;
- for (end= first_pixel + 8*stride; first_pixel < end; first_pixel += stride) {
+ 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);
+ first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value);
+ first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - 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);
+ first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value);
+ first_pixel[0] = av_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,
+ plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
if ((y > 0) &&
(s->all_fragments[fragment].coding_method != MODE_COPY)) {
vertical_filter(
- plane_data + s->all_fragments[fragment].first_pixel + stride,
+ plane_data + s->all_fragments[fragment].first_pixel,
stride, bounding_values);
}
(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,
+ plane_data + s->all_fragments[fragment + 1].first_pixel,
stride, bounding_values);
}
(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,
+ plane_data + s->all_fragments[fragment + width].first_pixel,
stride, bounding_values);
}
fragment++;
-STOP_TIMER("loop filter")
}
}
}
}
/* U plane */
- i = s->u_fragment_start;
+ i = s->fragment_start[1];
for (y = s->fragment_height / 2; y > 0; y--) {
for (x = 0; x < s->fragment_width / 2; x++) {
s->all_fragments[i++].first_pixel =
}
/* V plane */
- i = s->v_fragment_start;
+ i = s->fragment_start[2];
for (y = s->fragment_height / 2; y > 0; y--) {
for (x = 0; x < s->fragment_width / 2; x++) {
s->all_fragments[i++].first_pixel =
}
/* U plane */
- i = s->u_fragment_start;
+ i = s->fragment_start[1];
for (y = 1; y <= s->fragment_height / 2; y++) {
for (x = 0; x < s->fragment_width / 2; x++) {
s->all_fragments[i++].first_pixel =
}
/* V plane */
- i = s->v_fragment_start;
+ i = s->fragment_start[2];
for (y = 1; y <= s->fragment_height / 2; y++) {
for (x = 0; x < s->fragment_width / 2; x++) {
s->all_fragments[i++].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, inter, plane;
s->width = (avctx->width + 15) & 0xFFFFFFF0;
s->height = (avctx->height + 15) & 0xFFFFFFF0;
avctx->pix_fmt = PIX_FMT_YUV420P;
- avctx->has_b_frames = 0;
if(avctx->idct_algo==FF_IDCT_AUTO)
avctx->idct_algo=FF_IDCT_VP3;
dsputil_init(&s->dsp, avctx);
/* 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;
+ s->fragment_start[1] = s->fragment_width * s->fragment_height;
+ s->fragment_start[2] = 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);
s->fragment_count,
s->fragment_width,
s->fragment_height,
- s->u_fragment_start,
- s->v_fragment_start);
+ s->fragment_start[1],
+ s->fragment_start[2]);
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++)
+ 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->base_matrix[0][i] = vp31_intra_y_dequant[i];
- for (i = 0; i < 64; i++)
s->base_matrix[1][i] = vp31_intra_c_dequant[i];
- for (i = 0; i < 64; i++)
s->base_matrix[2][i] = vp31_inter_dequant[i];
- for (i = 0; i < 64; i++)
s->filter_limit_values[i] = vp31_filter_limit_values[i];
+ }
for(inter=0; inter<2; inter++){
for(plane=0; plane<3; plane++){
*/
static int vp3_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ const uint8_t *buf, int buf_size)
{
Vp3DecodeContext *s = avctx->priv_data;
GetBitContext gb;
if (s->theora && get_bits1(&gb))
{
-#if 1
av_log(avctx, AV_LOG_ERROR, "Header packet passed to frame decoder, skipping\n");
return -1;
-#else
- 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;
-#endif
}
s->keyframe = !get_bits1(&gb);
if (!s->theora)
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->current_frame= s->golden_frame;
/* time to figure out pixel addresses? */
- if (!s->pixel_addresses_inited)
+ if (!s->pixel_addresses_initialized)
{
if (!s->flipped_image)
vp3_calculate_pixel_addresses(s);
else
theora_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) {
} 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
/*
* 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->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");
return 0;
}
+#ifdef CONFIG_THEORA_DECODER
static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
+ int visible_width, visible_height;
s->theora = get_bits_long(gb, 24);
- av_log(avctx, AV_LOG_INFO, "Theora bitstream version %X\n", s->theora);
+ 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 */
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 */
-
- skip_bits(gb, 24); /* frame width */
- skip_bits(gb, 24); /* frame height */
- }
- else
- {
- skip_bits(gb, 24); /* frame width */
- skip_bits(gb, 24); /* frame height */
}
- if (s->theora >= 0x030200) {
- skip_bits(gb, 8); /* offset x */
- skip_bits(gb, 8); /* offset y */
- }
+ visible_width = get_bits_long(gb, 24);
+ visible_height = get_bits_long(gb, 24);
+
+ if (s->theora >= 0x030200) {
+ skip_bits(gb, 8); /* offset x */
+ skip_bits(gb, 8); /* offset y */
+ }
skip_bits(gb, 32); /* fps numerator */
skip_bits(gb, 32); /* fps denumerator */
// align_get_bits(gb);
- avctx->width = s->width;
- avctx->height = s->height;
+ 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;
}
for (plane = 0; plane <= 2; plane++) {
int newqr= 1;
if (inter || plane > 0)
- newqr = get_bits(gb, 1);
+ newqr = get_bits1(gb);
if (!newqr) {
int qtj, plj;
- if(inter && get_bits(gb, 1)){
+ if(inter && get_bits1(gb)){
qtj = 0;
plj = plane;
}else{
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);
s->hbits = 1;
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;
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);
// return -1;
}
- // FIXME: check for this aswell
+ // FIXME: Check for this as well.
skip_bits(&gb, 6*8); /* "theora" */
switch(ptype)
av_log(avctx, AV_LOG_ERROR, "Unknown Theora config packet: %d\n", ptype&~0x80);
break;
}
- if(8*op_bytes != get_bits_count(&gb))
- av_log(avctx, AV_LOG_ERROR, "%d bits left in packet %X\n", 8*op_bytes - get_bits_count(&gb), ptype);
+ if(8*header_len[i] != get_bits_count(&gb))
+ av_log(avctx, AV_LOG_ERROR, "%d bits left in packet %X\n", 8*header_len[i] - get_bits_count(&gb), ptype);
if (s->theora < 0x030200)
break;
}
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