*/
/**
- * @file libavcodec/vp3.c
+ * @file
* On2 VP3 Video Decoder
*
* VP3 Video Decoder by Mike Melanson (mike at multimedia.cx)
typedef struct Vp3Fragment {
int16_t dc;
uint8_t coding_method;
- int8_t motion_x;
- int8_t motion_y;
uint8_t qpi;
} Vp3Fragment;
int theora, theora_tables;
int version;
int width, height;
+ int chroma_x_shift, chroma_y_shift;
AVFrame golden_frame;
AVFrame last_frame;
AVFrame current_frame;
DSPContext dsp;
int flipped_image;
int last_slice_end;
+ int skip_loop_filter;
int qps[3];
int nqps;
int macroblock_height;
int fragment_count;
- int fragment_width;
- int fragment_height;
+ int fragment_width[2];
+ int fragment_height[2];
Vp3Fragment *all_fragments;
int fragment_start[3];
int data_offset[3];
+ int8_t (*motion_val[2])[2];
+
ScanTable scantable;
/* tables */
unsigned int hbits;
int entries;
int huff_code_size;
- uint16_t huffman_table[80][32][2];
+ uint32_t huffman_table[80][32][2];
uint8_t filter_limit_values[64];
DECLARE_ALIGNED(8, int, bounding_values_array)[256+2];
* superblocks <-> fragments, macroblocks <-> fragments,
* superblocks <-> macroblocks
*
- * Returns 0 is successful; returns 1 if *anything* went wrong.
+ * @return 0 is successful; returns 1 if *anything* went wrong.
*/
static int init_block_mapping(Vp3DecodeContext *s)
{
- int i, j;
- signed int hilbert_walk_mb[4];
-
- int current_fragment = 0;
- int current_width = 0;
- int current_height = 0;
- int right_edge = 0;
- int bottom_edge = 0;
- int superblock_row_inc = 0;
- int mapping_index = 0;
-
- static const signed char travel_width[16] = {
- 1, 1, 0, -1,
- 0, 0, 1, 0,
- 1, 0, 1, 0,
- 0, -1, 0, 1
- };
-
- static const signed char travel_height[16] = {
- 0, 0, 1, 0,
- 1, 1, 0, -1,
- 0, 1, 0, -1,
- -1, 0, -1, 0
- };
-
- hilbert_walk_mb[0] = 1;
- hilbert_walk_mb[1] = s->macroblock_width;
- hilbert_walk_mb[2] = 1;
- hilbert_walk_mb[3] = -s->macroblock_width;
-
- /* iterate through each superblock (all planes) and map the fragments */
- for (i = 0; i < s->superblock_count; i++) {
- /* time to re-assign the limits? */
- if (i == 0) {
-
- /* start of Y superblocks */
- right_edge = s->fragment_width;
- bottom_edge = s->fragment_height;
- current_width = -1;
- current_height = 0;
- superblock_row_inc = 3 * s->fragment_width -
- (s->y_superblock_width * 4 - s->fragment_width);
-
- /* the first operation for this variable is to advance by 1 */
- current_fragment = -1;
-
- } else if (i == s->u_superblock_start) {
-
- /* start of U superblocks */
- right_edge = s->fragment_width / 2;
- bottom_edge = s->fragment_height / 2;
- current_width = -1;
- current_height = 0;
- superblock_row_inc = 3 * (s->fragment_width / 2) -
- (s->c_superblock_width * 4 - s->fragment_width / 2);
-
- /* the first operation for this variable is to advance by 1 */
- current_fragment = s->fragment_start[1] - 1;
-
- } else if (i == s->v_superblock_start) {
-
- /* start of V superblocks */
- right_edge = s->fragment_width / 2;
- bottom_edge = s->fragment_height / 2;
- current_width = -1;
- current_height = 0;
- superblock_row_inc = 3 * (s->fragment_width / 2) -
- (s->c_superblock_width * 4 - s->fragment_width / 2);
-
- /* the first operation for this variable is to advance by 1 */
- current_fragment = s->fragment_start[2] - 1;
-
- }
-
- if (current_width >= right_edge - 1) {
- /* reset width and move to next superblock row */
- current_width = -1;
- current_height += 4;
-
- /* fragment is now at the start of a new superblock row */
- current_fragment += superblock_row_inc;
- }
-
- /* iterate through all 16 fragments in a superblock */
- for (j = 0; j < 16; j++) {
- current_fragment += travel_width[j] + right_edge * travel_height[j];
- current_width += travel_width[j];
- current_height += travel_height[j];
-
- /* check if the fragment is in bounds */
- if ((current_width < right_edge) &&
- (current_height < bottom_edge)) {
- s->superblock_fragments[mapping_index] = current_fragment;
- } else {
- s->superblock_fragments[mapping_index] = -1;
- }
+ int sb_x, sb_y, plane;
+ int x, y, i, j = 0;
- mapping_index++;
- }
+ for (plane = 0; plane < 3; plane++) {
+ int sb_width = plane ? s->c_superblock_width : s->y_superblock_width;
+ int sb_height = plane ? s->c_superblock_height : s->y_superblock_height;
+ int frag_width = s->fragment_width[!!plane];
+ int frag_height = s->fragment_height[!!plane];
+
+ for (sb_y = 0; sb_y < sb_height; sb_y++)
+ for (sb_x = 0; sb_x < sb_width; sb_x++)
+ for (i = 0; i < 16; i++) {
+ x = 4*sb_x + hilbert_offset[i][0];
+ y = 4*sb_y + hilbert_offset[i][1];
+
+ if (x < frag_width && y < frag_height)
+ s->superblock_fragments[j++] = s->fragment_start[plane] + y*frag_width + x;
+ else
+ s->superblock_fragments[j++] = -1;
+ }
}
return 0; /* successful path out */
}
-/*
- * This function wipes out all of the fragment data.
- */
-static void init_frame(Vp3DecodeContext *s, GetBitContext *gb)
-{
- int i;
-
- /* zero out all of the fragment information */
- for (i = 0; i < s->fragment_count; i++) {
- s->all_fragments[i].motion_x = 127;
- s->all_fragments[i].motion_y = 127;
- s->all_fragments[i].dc = 0;
- s->all_fragments[i].qpi = 0;
- }
-}
-
/*
* This function sets up the dequantization tables used for a particular
* frame.
} else {
/* unpack the list of partially-coded superblocks */
- bit = get_bits1(gb);
- while (current_superblock < s->superblock_count) {
+ bit = get_bits1(gb) ^ 1;
+ current_run = 0;
+
+ while (current_superblock < s->superblock_count && get_bits_left(gb) > 0) {
+ if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
+ bit = get_bits1(gb);
+ else
+ bit ^= 1;
+
current_run = get_vlc2(gb,
s->superblock_run_length_vlc.table, 6, 2) + 1;
if (current_run == 34)
current_superblock += current_run;
if (bit)
num_partial_superblocks += current_run;
-
- if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
- bit = get_bits1(gb);
- else
- bit ^= 1;
}
/* unpack the list of fully coded superblocks if any of the blocks were
int superblocks_decoded = 0;
current_superblock = 0;
- bit = get_bits1(gb);
- while (superblocks_decoded < s->superblock_count - num_partial_superblocks) {
+ bit = get_bits1(gb) ^ 1;
+ current_run = 0;
+
+ while (superblocks_decoded < s->superblock_count - num_partial_superblocks
+ && get_bits_left(gb) > 0) {
+
+ if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
+ bit = get_bits1(gb);
+ else
+ bit ^= 1;
+
current_run = get_vlc2(gb,
s->superblock_run_length_vlc.table, 6, 2) + 1;
if (current_run == 34)
}
}
superblocks_decoded += current_run;
-
- if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
- bit = get_bits1(gb);
- else
- bit ^= 1;
}
}
int sb_end = sb_start + (plane ? s->c_superblock_count : s->y_superblock_count);
int num_coded_frags = 0;
- for (i = sb_start; i < sb_end; i++) {
+ for (i = sb_start; i < sb_end && get_bits_left(gb) > 0; i++) {
/* iterate through all 16 fragments in a superblock */
for (j = 0; j < 16; j++) {
/* if the fragment is in bounds, check its coding status */
current_fragment = s->superblock_fragments[i * 16 + j];
- if (current_fragment >= s->fragment_count) {
- av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_superblocks(): bad fragment number (%d >= %d)\n",
- current_fragment, s->fragment_count);
- return 1;
- }
if (current_fragment != -1) {
int coded = s->superblock_coding[i];
int coding_mode;
int custom_mode_alphabet[CODING_MODE_COUNT];
const int *alphabet;
+ Vp3Fragment *frag;
if (s->keyframe) {
for (i = 0; i < s->fragment_count; i++)
* coded fragments */
for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {
for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {
+ if (get_bits_left(gb) <= 0)
+ return -1;
for (j = 0; j < 4; j++) {
int mb_x = 2*sb_x + (j>>1);
/* coding modes are only stored if the macroblock has at least one
* luma block coded, otherwise it must be INTER_NO_MV */
for (k = 0; k < 4; k++) {
- current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
+ current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->all_fragments[current_fragment].coding_method != MODE_COPY)
break;
}
s->macroblock_coding[current_macroblock] = coding_mode;
for (k = 0; k < 4; k++) {
- current_fragment =
- BLOCK_Y*s->fragment_width + BLOCK_X;
- if (s->all_fragments[current_fragment].coding_method !=
- MODE_COPY)
- s->all_fragments[current_fragment].coding_method =
- coding_mode;
+ frag = s->all_fragments + BLOCK_Y*s->fragment_width[0] + BLOCK_X;
+ if (frag->coding_method != MODE_COPY)
+ frag->coding_method = coding_mode;
}
- for (k = 0; k < 2; k++) {
- current_fragment = s->fragment_start[k+1] +
- mb_y*(s->fragment_width>>1) + mb_x;
- if (s->all_fragments[current_fragment].coding_method !=
- MODE_COPY)
- s->all_fragments[current_fragment].coding_method =
- coding_mode;
+
+#define SET_CHROMA_MODES \
+ if (frag[s->fragment_start[1]].coding_method != MODE_COPY) \
+ frag[s->fragment_start[1]].coding_method = coding_mode;\
+ if (frag[s->fragment_start[2]].coding_method != MODE_COPY) \
+ frag[s->fragment_start[2]].coding_method = coding_mode;
+
+ if (s->chroma_y_shift) {
+ frag = s->all_fragments + mb_y*s->fragment_width[1] + mb_x;
+ SET_CHROMA_MODES
+ } else if (s->chroma_x_shift) {
+ frag = s->all_fragments + 2*mb_y*s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
+ SET_CHROMA_MODES
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = s->all_fragments + BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ SET_CHROMA_MODES
+ }
}
}
}
{
int j, k, sb_x, sb_y;
int coding_mode;
- int motion_x[6];
- int motion_y[6];
+ int motion_x[4];
+ int motion_y[4];
int last_motion_x = 0;
int last_motion_y = 0;
int prior_last_motion_x = 0;
int prior_last_motion_y = 0;
int current_macroblock;
int current_fragment;
+ int frag;
if (s->keyframe)
return 0;
- 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);
* coded fragments */
for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {
for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {
+ if (get_bits_left(gb) <= 0)
+ return -1;
for (j = 0; j < 4; j++) {
int mb_x = 2*sb_x + (j>>1);
/* 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++) {
- current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
+ current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
if (coding_mode == 0) {
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_x[k] = 0;
motion_y[k] = 0;
}
- motion_x[4] += motion_x[k];
- motion_y[4] += motion_y[k];
}
-
- 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:
/* assign the motion vectors to the correct fragments */
for (k = 0; k < 4; k++) {
current_fragment =
- BLOCK_Y*s->fragment_width + BLOCK_X;
+ BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- s->all_fragments[current_fragment].motion_x = motion_x[k];
- s->all_fragments[current_fragment].motion_y = motion_y[k];
+ s->motion_val[0][current_fragment][0] = motion_x[k];
+ s->motion_val[0][current_fragment][1] = motion_y[k];
} else {
- s->all_fragments[current_fragment].motion_x = motion_x[0];
- s->all_fragments[current_fragment].motion_y = motion_y[0];
+ s->motion_val[0][current_fragment][0] = motion_x[0];
+ s->motion_val[0][current_fragment][1] = motion_y[0];
}
}
- for (k = 0; k < 2; k++) {
- current_fragment = s->fragment_start[k+1] +
- mb_y*(s->fragment_width>>1) + mb_x;
+
+ if (s->chroma_y_shift) {
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] + motion_x[2] + motion_x[3], 2);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] + motion_y[2] + motion_y[3], 2);
+ }
+ motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
+ motion_y[0] = (motion_y[0]>>1) | (motion_y[0]&1);
+ frag = mb_y*s->fragment_width[1] + mb_x;
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ } else if (s->chroma_x_shift) {
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- s->all_fragments[current_fragment].motion_x = motion_x[k+4];
- s->all_fragments[current_fragment].motion_y = motion_y[k+4];
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);
+ motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);
+ motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);
} else {
- s->all_fragments[current_fragment].motion_x = motion_x[0];
- s->all_fragments[current_fragment].motion_y = motion_y[0];
+ motion_x[1] = motion_x[0];
+ motion_y[1] = motion_y[0];
+ }
+ motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
+ motion_x[1] = (motion_x[1]>>1) | (motion_x[1]&1);
+
+ frag = 2*mb_y*s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
+ s->motion_val[1][frag][0] = motion_x[k];
+ s->motion_val[1][frag][1] = motion_y[k];
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ s->motion_val[1][frag][0] = motion_x[k];
+ s->motion_val[1][frag][1] = motion_y[k];
+ } else {
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ }
}
}
}
for (qpi = 0; qpi < s->nqps-1 && num_blocks > 0; qpi++) {
i = blocks_decoded = num_blocks_at_qpi = 0;
- bit = get_bits1(gb);
+ bit = get_bits1(gb) ^ 1;
+ run_length = 0;
do {
+ if (run_length == MAXIMUM_LONG_BIT_RUN)
+ bit = get_bits1(gb);
+ else
+ bit ^= 1;
+
run_length = get_vlc2(gb, s->superblock_run_length_vlc.table, 6, 2) + 1;
if (run_length == 34)
run_length += get_bits(gb, 12);
j++;
}
}
-
- if (run_length == MAXIMUM_LONG_BIT_RUN)
- bit = get_bits1(gb);
- else
- bit ^= 1;
- } while (blocks_decoded < num_blocks);
+ } while (blocks_decoded < num_blocks && get_bits_left(gb) > 0);
num_blocks -= num_blocks_at_qpi;
}
if (blocks_ended)
dct_tokens[j++] = blocks_ended << 2;
- while (coeff_i < num_coeffs) {
+ while (coeff_i < num_coeffs && get_bits_left(gb) > 0) {
/* decode a VLC into a token */
- token = get_vlc2(gb, vlc_table, 5, 3);
+ token = get_vlc2(gb, vlc_table, 11, 3);
/* use the token to get a zero run, a coefficient, and an eob run */
if (token <= 6) {
eob_run = eob_run_base[token];
0, residual_eob_run);
/* reverse prediction of the Y-plane DC coefficients */
- reverse_dc_prediction(s, 0, s->fragment_width, s->fragment_height);
+ reverse_dc_prediction(s, 0, s->fragment_width[0], s->fragment_height[0]);
/* unpack the C plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
if (!(s->avctx->flags & CODEC_FLAG_GRAY))
{
reverse_dc_prediction(s, s->fragment_start[1],
- s->fragment_width / 2, s->fragment_height / 2);
+ s->fragment_width[1], s->fragment_height[1]);
reverse_dc_prediction(s, s->fragment_start[2],
- s->fragment_width / 2, s->fragment_height / 2);
+ s->fragment_width[1], s->fragment_height[1]);
}
/* fetch the AC table indexes */
int x, y;
int *bounding_values= s->bounding_values_array+127;
- int width = s->fragment_width >> !!plane;
- int height = s->fragment_height >> !!plane;
+ int width = s->fragment_width[!!plane];
+ int height = s->fragment_height[!!plane];
int fragment = s->fragment_start [plane] + ystart * width;
int stride = s->current_frame.linesize[plane];
uint8_t *plane_data = s->current_frame.data [plane];
}
/**
- * Pulls DCT tokens from the 64 levels to decode and dequant the coefficients
+ * Pull DCT tokens from the 64 levels to decode and dequant the coefficients
* for the next block in coding order
*/
static inline int vp3_dequant(Vp3DecodeContext *s, Vp3Fragment *frag,
block[perm[i]] = (token >> 2) * dequantizer[perm[i]];
s->dct_tokens[plane][i++]++;
break;
- default:
- av_log(s->avctx, AV_LOG_ERROR, "internal: invalid token type\n");
+ default: // shouldn't happen
return i;
}
} while (i < 64);
y = s->height - y - h;
}
- cy = y >> 1;
+ cy = y >> s->chroma_y_shift;
offset[0] = s->current_frame.linesize[0]*y;
offset[1] = s->current_frame.linesize[1]*cy;
offset[2] = s->current_frame.linesize[2]*cy;
uint8_t * last_plane = s-> last_frame.data [plane] + s->data_offset[plane];
uint8_t *golden_plane = s-> golden_frame.data [plane] + s->data_offset[plane];
int stride = s->current_frame.linesize[plane];
- int plane_width = s->width >> !!plane;
- int plane_height = s->height >> !!plane;
+ int plane_width = s->width >> (plane && s->chroma_x_shift);
+ int plane_height = s->height >> (plane && s->chroma_y_shift);
+ int8_t (*motion_val)[2] = s->motion_val[!!plane];
- int sb_x, sb_y = slice << !plane;
- int slice_height = sb_y + (plane ? 1 : 2);
+ int sb_x, sb_y = slice << (!plane && s->chroma_y_shift);
+ int slice_height = sb_y + 1 + (!plane && s->chroma_y_shift);
int slice_width = plane ? s->c_superblock_width : s->y_superblock_width;
- int fragment_width = s->fragment_width >> !!plane;
- int fragment_height = s->fragment_height >> !!plane;
+ int fragment_width = s->fragment_width[!!plane];
+ int fragment_height = s->fragment_height[!!plane];
int fragment_start = s->fragment_start[plane];
if (!s->flipped_image) stride = -stride;
/* transform if this block was coded */
if (s->all_fragments[i].coding_method != MODE_COPY) {
- int intra = s->all_fragments[i].coding_method == MODE_INTRA;
-
if ((s->all_fragments[i].coding_method == MODE_USING_GOLDEN) ||
(s->all_fragments[i].coding_method == MODE_GOLDEN_MV))
motion_source= golden_plane;
if ((s->all_fragments[i].coding_method > MODE_INTRA) &&
(s->all_fragments[i].coding_method != MODE_USING_GOLDEN)) {
int src_x, src_y;
- motion_x = s->all_fragments[i].motion_x;
- motion_y = s->all_fragments[i].motion_y;
- if(plane){
- motion_x= (motion_x>>1) | (motion_x&1);
- motion_y= (motion_y>>1) | (motion_y&1);
- }
+ motion_x = motion_val[y*fragment_width + x][0];
+ motion_y = motion_val[y*fragment_width + x][1];
src_x= (motion_x>>1) + 8*x;
src_y= (motion_y>>1) + 8*y;
- if ((motion_x == 127) || (motion_y == 127))
- av_log(s->avctx, AV_LOG_ERROR, " help! got invalid motion vector! (%X, %X)\n", motion_x, motion_y);
motion_halfpel_index = motion_x & 0x01;
motion_source += (motion_x >> 1);
}
s->dsp.clear_block(block);
- vp3_dequant(s, s->all_fragments + i, plane, !intra, block);
/* invert DCT and place (or add) in final output */
if (s->all_fragments[i].coding_method == MODE_INTRA) {
+ vp3_dequant(s, s->all_fragments + i, plane, 0, block);
if(s->avctx->idct_algo!=FF_IDCT_VP3)
block[0] += 128<<3;
s->dsp.idct_put(
stride,
block);
} else {
+ if (vp3_dequant(s, s->all_fragments + i, plane, 1, block)) {
s->dsp.idct_add(
output_plane + first_pixel,
stride,
block);
+ } else {
+ s->dsp.vp3_idct_dc_add(output_plane + first_pixel, stride, block);
+ }
}
} else {
}
// Filter up to the last row in the superblock row
- apply_loop_filter(s, plane, 4*sb_y - !!sb_y, FFMIN(4*sb_y+3, fragment_height-1));
+ if (!s->skip_loop_filter)
+ apply_loop_filter(s, plane, 4*sb_y - !!sb_y, FFMIN(4*sb_y+3, fragment_height-1));
}
}
* dispatch (slice - 1);
*/
- vp3_draw_horiz_band(s, 64*slice + 64-16);
+ vp3_draw_horiz_band(s, FFMIN(64*slice + 64-16, s->height-16));
}
/*
int i, inter, plane;
int c_width;
int c_height;
+ int y_fragment_count, c_fragment_count;
if (avctx->codec_tag == MKTAG('V','P','3','0'))
s->version = 0;
s->avctx = avctx;
s->width = FFALIGN(avctx->width, 16);
s->height = FFALIGN(avctx->height, 16);
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ if (avctx->pix_fmt == PIX_FMT_NONE)
+ avctx->pix_fmt = PIX_FMT_YUV420P;
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
if(avctx->idct_algo==FF_IDCT_AUTO)
avctx->idct_algo=FF_IDCT_VP3;
for (i = 0; i < 3; i++)
s->qps[i] = -1;
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
+
s->y_superblock_width = (s->width + 31) / 32;
s->y_superblock_height = (s->height + 31) / 32;
s->y_superblock_count = s->y_superblock_width * s->y_superblock_height;
/* work out the dimensions for the C planes */
- c_width = s->width / 2;
- c_height = s->height / 2;
+ c_width = s->width >> s->chroma_x_shift;
+ c_height = s->height >> s->chroma_y_shift;
s->c_superblock_width = (c_width + 31) / 32;
s->c_superblock_height = (c_height + 31) / 32;
s->c_superblock_count = s->c_superblock_width * s->c_superblock_height;
s->macroblock_height = (s->height + 15) / 16;
s->macroblock_count = s->macroblock_width * s->macroblock_height;
- s->fragment_width = s->width / FRAGMENT_PIXELS;
- s->fragment_height = s->height / FRAGMENT_PIXELS;
+ s->fragment_width[0] = s->width / FRAGMENT_PIXELS;
+ s->fragment_height[0] = s->height / FRAGMENT_PIXELS;
+ s->fragment_width[1] = s->fragment_width[0] >> s->chroma_x_shift;
+ s->fragment_height[1] = s->fragment_height[0] >> s->chroma_y_shift;
/* fragment count covers all 8x8 blocks for all 3 planes */
- s->fragment_count = s->fragment_width * s->fragment_height * 3 / 2;
- s->fragment_start[1] = s->fragment_width * s->fragment_height;
- s->fragment_start[2] = s->fragment_width * s->fragment_height * 5 / 4;
+ y_fragment_count = s->fragment_width[0] * s->fragment_height[0];
+ c_fragment_count = s->fragment_width[1] * s->fragment_height[1];
+ s->fragment_count = y_fragment_count + 2*c_fragment_count;
+ s->fragment_start[1] = y_fragment_count;
+ s->fragment_start[2] = y_fragment_count + c_fragment_count;
s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
s->coded_fragment_list[0] = av_malloc(s->fragment_count * sizeof(int));
s->dct_tokens_base = av_malloc(64*s->fragment_count * sizeof(*s->dct_tokens_base));
+ s->motion_val[0] = av_malloc(y_fragment_count * sizeof(*s->motion_val[0]));
+ s->motion_val[1] = av_malloc(c_fragment_count * sizeof(*s->motion_val[1]));
+
if (!s->superblock_coding || !s->all_fragments || !s->dct_tokens_base ||
- !s->coded_fragment_list[0]) {
+ !s->coded_fragment_list[0] || !s->motion_val[0] || !s->motion_val[1]) {
vp3_decode_end(avctx);
return -1;
}
for (i = 0; i < 16; i++) {
/* DC histograms */
- init_vlc(&s->dc_vlc[i], 5, 32,
+ init_vlc(&s->dc_vlc[i], 11, 32,
&dc_bias[i][0][1], 4, 2,
&dc_bias[i][0][0], 4, 2, 0);
/* group 1 AC histograms */
- init_vlc(&s->ac_vlc_1[i], 5, 32,
+ init_vlc(&s->ac_vlc_1[i], 11, 32,
&ac_bias_0[i][0][1], 4, 2,
&ac_bias_0[i][0][0], 4, 2, 0);
/* group 2 AC histograms */
- init_vlc(&s->ac_vlc_2[i], 5, 32,
+ init_vlc(&s->ac_vlc_2[i], 11, 32,
&ac_bias_1[i][0][1], 4, 2,
&ac_bias_1[i][0][0], 4, 2, 0);
/* group 3 AC histograms */
- init_vlc(&s->ac_vlc_3[i], 5, 32,
+ init_vlc(&s->ac_vlc_3[i], 11, 32,
&ac_bias_2[i][0][1], 4, 2,
&ac_bias_2[i][0][0], 4, 2, 0);
/* group 4 AC histograms */
- init_vlc(&s->ac_vlc_4[i], 5, 32,
+ init_vlc(&s->ac_vlc_4[i], 11, 32,
&ac_bias_3[i][0][1], 4, 2,
&ac_bias_3[i][0][0], 4, 2, 0);
}
} else {
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < 16; i++) {
/* DC histograms */
- if (init_vlc(&s->dc_vlc[i], 5, 32,
- &s->huffman_table[i][0][1], 4, 2,
- &s->huffman_table[i][0][0], 4, 2, 0) < 0)
+ if (init_vlc(&s->dc_vlc[i], 11, 32,
+ &s->huffman_table[i][0][1], 8, 4,
+ &s->huffman_table[i][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 1 AC histograms */
- if (init_vlc(&s->ac_vlc_1[i], 5, 32,
- &s->huffman_table[i+16][0][1], 4, 2,
- &s->huffman_table[i+16][0][0], 4, 2, 0) < 0)
+ if (init_vlc(&s->ac_vlc_1[i], 11, 32,
+ &s->huffman_table[i+16][0][1], 8, 4,
+ &s->huffman_table[i+16][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 2 AC histograms */
- if (init_vlc(&s->ac_vlc_2[i], 5, 32,
- &s->huffman_table[i+16*2][0][1], 4, 2,
- &s->huffman_table[i+16*2][0][0], 4, 2, 0) < 0)
+ if (init_vlc(&s->ac_vlc_2[i], 11, 32,
+ &s->huffman_table[i+16*2][0][1], 8, 4,
+ &s->huffman_table[i+16*2][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 3 AC histograms */
- if (init_vlc(&s->ac_vlc_3[i], 5, 32,
- &s->huffman_table[i+16*3][0][1], 4, 2,
- &s->huffman_table[i+16*3][0][0], 4, 2, 0) < 0)
+ if (init_vlc(&s->ac_vlc_3[i], 11, 32,
+ &s->huffman_table[i+16*3][0][1], 8, 4,
+ &s->huffman_table[i+16*3][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 4 AC histograms */
- if (init_vlc(&s->ac_vlc_4[i], 5, 32,
- &s->huffman_table[i+16*4][0][1], 4, 2,
- &s->huffman_table[i+16*4][0][0], 4, 2, 0) < 0)
+ if (init_vlc(&s->ac_vlc_4[i], 11, 32,
+ &s->huffman_table[i+16*4][0][1], 8, 4,
+ &s->huffman_table[i+16*4][0][0], 8, 4, 0) < 0)
goto vlc_fail;
}
}
s->keyframe?"key":"", counter, s->qps[0]);
counter++;
+ s->skip_loop_filter = !s->filter_limit_values[s->qps[0]] ||
+ avctx->skip_loop_filter >= (s->keyframe ? AVDISCARD_ALL : AVDISCARD_NONKEY);
+
if (s->qps[0] != s->last_qps[0])
init_loop_filter(s);
return buf_size;
s->current_frame.reference = 3;
+ s->current_frame.pict_type = s->keyframe ? FF_I_TYPE : FF_P_TYPE;
if (avctx->get_buffer(avctx, &s->current_frame) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto error;
}
} else {
if (!s->golden_frame.data[0]) {
- av_log(s->avctx, AV_LOG_ERROR, "vp3: first frame not a keyframe\n");
- goto error;
+ av_log(s->avctx, AV_LOG_WARNING, "vp3: first frame not a keyframe\n");
+
+ s->golden_frame.reference = 3;
+ s->golden_frame.pict_type = FF_I_TYPE;
+ if (avctx->get_buffer(avctx, &s->golden_frame) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ goto error;
+ }
+ s->last_frame = s->golden_frame;
+ s->last_frame.type = FF_BUFFER_TYPE_COPY;
}
}
s->current_frame.qscale_table= s->qscale_table; //FIXME allocate individual tables per AVFrame
s->current_frame.qstride= 0;
- init_frame(s, &gb);
+ memset(s->all_fragments, 0, s->fragment_count * sizeof(Vp3Fragment));
if (unpack_superblocks(s, &gb)){
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_superblocks\n");
}
for (i = 0; i < 3; i++) {
+ int height = s->height >> (i && s->chroma_y_shift);
if (s->flipped_image)
s->data_offset[i] = 0;
else
- s->data_offset[i] = ((s->height>>!!i)-1) * s->current_frame.linesize[i];
+ s->data_offset[i] = (height-1) * s->current_frame.linesize[i];
}
s->last_slice_end = 0;
// filter the last row
for (i = 0; i < 3; i++) {
- int row = (s->height >> (3+!!i)) - 1;
+ int row = (s->height >> (3+(i && s->chroma_y_shift))) - 1;
apply_loop_filter(s, i, row, row+1);
}
vp3_draw_horiz_band(s, s->height);
/* release the last frame, if it is allocated and if it is not the
* golden frame */
- if ((s->last_frame.data[0]) &&
- (s->last_frame.data[0] != s->golden_frame.data[0]))
+ if (s->last_frame.data[0] && s->last_frame.type != FF_BUFFER_TYPE_COPY)
avctx->release_buffer(avctx, &s->last_frame);
/* shuffle frames (last = current) */
if (s->golden_frame.data[0])
avctx->release_buffer(avctx, &s->golden_frame);
s->golden_frame = s->current_frame;
+ s->last_frame.type = FF_BUFFER_TYPE_COPY;
}
s->current_frame.data[0]= NULL; /* ensure that we catch any access to this released frame */
av_free(s->dct_tokens_base);
av_free(s->superblock_fragments);
av_free(s->macroblock_coding);
+ av_free(s->motion_val[0]);
+ av_free(s->motion_val[1]);
for (i = 0; i < 16; i++) {
free_vlc(&s->dc_vlc[i]);
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])
+ if (s->golden_frame.data[0])
avctx->release_buffer(avctx, &s->golden_frame);
- if (s->last_frame.data[0])
+ if (s->last_frame.data[0] && s->last_frame.type != FF_BUFFER_TYPE_COPY)
avctx->release_buffer(avctx, &s->last_frame);
/* no need to release the current_frame since it will always be pointing
* to the same frame as either the golden or last frame */
}
#if CONFIG_THEORA_DECODER
+static const enum PixelFormat theora_pix_fmts[4] = {
+ PIX_FMT_YUV420P, PIX_FMT_NONE, PIX_FMT_YUV422P, PIX_FMT_YUV444P
+};
+
static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
int visible_width, visible_height, colorspace;
+ int offset_x = 0, offset_y = 0;
+ AVRational fps;
s->theora = get_bits_long(gb, 24);
av_log(avctx, AV_LOG_DEBUG, "Theora bitstream version %X\n", s->theora);
visible_width = get_bits_long(gb, 24);
visible_height = get_bits_long(gb, 24);
- skip_bits(gb, 8); /* offset x */
- skip_bits(gb, 8); /* offset y */
+ offset_x = get_bits(gb, 8); /* offset x */
+ offset_y = get_bits(gb, 8); /* offset y, from bottom */
+ }
+
+ fps.num = get_bits_long(gb, 32);
+ fps.den = get_bits_long(gb, 32);
+ if (fps.num && fps.den) {
+ av_reduce(&avctx->time_base.num, &avctx->time_base.den,
+ fps.den, fps.num, 1<<30);
}
- skip_bits(gb, 32); /* fps numerator */
- skip_bits(gb, 32); /* fps denumerator */
- skip_bits(gb, 24); /* aspect numerator */
- skip_bits(gb, 24); /* aspect denumerator */
+ avctx->sample_aspect_ratio.num = get_bits_long(gb, 24);
+ avctx->sample_aspect_ratio.den = get_bits_long(gb, 24);
if (s->theora < 0x030200)
skip_bits(gb, 5); /* keyframe frequency force */
if (s->theora >= 0x030200)
{
skip_bits(gb, 5); /* keyframe frequency force */
- skip_bits(gb, 2); /* pixel format: 420,res,422,444 */
+ avctx->pix_fmt = theora_pix_fmts[get_bits(gb, 2)];
skip_bits(gb, 3); /* reserved */
}
// align_get_bits(gb);
if ( visible_width <= s->width && visible_width > s->width-16
- && visible_height <= s->height && visible_height > s->height-16)
+ && visible_height <= s->height && visible_height > s->height-16
+ && !offset_x && (offset_y == s->height - visible_height))
avcodec_set_dimensions(avctx, visible_width, visible_height);
else
avcodec_set_dimensions(avctx, s->width, s->height);
AVCodec theora_decoder = {
"theora",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_THEORA,
sizeof(Vp3DecodeContext),
theora_decode_init,
AVCodec vp3_decoder = {
"vp3",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_VP3,
sizeof(Vp3DecodeContext),
vp3_decode_init,
projects / ffmpeg / blobdiff