#include "idctdsp.h"
#include "internal.h"
#include "mathops.h"
+#include "mpeg_er.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
int i, level, nCoeffs;
const uint16_t *quant_matrix;
+ if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+ else qscale <<= 1;
+
if(s->alternate_scan) nCoeffs= 63;
else nCoeffs= s->block_last_index[n];
if (level) {
if (level < 0) {
level = -level;
- level = (int)(level * qscale * quant_matrix[j]) >> 3;
+ level = (int)(level * qscale * quant_matrix[j]) >> 4;
level = -level;
} else {
- level = (int)(level * qscale * quant_matrix[j]) >> 3;
+ level = (int)(level * qscale * quant_matrix[j]) >> 4;
}
block[j] = level;
}
const uint16_t *quant_matrix;
int sum=-1;
+ if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+ else qscale <<= 1;
+
if(s->alternate_scan) nCoeffs= 63;
else nCoeffs= s->block_last_index[n];
if (level) {
if (level < 0) {
level = -level;
- level = (int)(level * qscale * quant_matrix[j]) >> 3;
+ level = (int)(level * qscale * quant_matrix[j]) >> 4;
level = -level;
} else {
- level = (int)(level * qscale * quant_matrix[j]) >> 3;
+ level = (int)(level * qscale * quant_matrix[j]) >> 4;
}
block[j] = level;
sum+=level;
const uint16_t *quant_matrix;
int sum=-1;
+ if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+ else qscale <<= 1;
+
if(s->alternate_scan) nCoeffs= 63;
else nCoeffs= s->block_last_index[n];
if (level < 0) {
level = -level;
level = (((level << 1) + 1) * qscale *
- ((int) (quant_matrix[j]))) >> 4;
+ ((int) (quant_matrix[j]))) >> 5;
level = -level;
} else {
level = (((level << 1) + 1) * qscale *
- ((int) (quant_matrix[j]))) >> 4;
+ ((int) (quant_matrix[j]))) >> 5;
}
block[j] = level;
sum+=level;
}
}
-static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
- int (*mv)[2][4][2],
- int mb_x, int mb_y, int mb_intra, int mb_skipped)
-{
- MpegEncContext *s = opaque;
-
- s->mv_dir = mv_dir;
- s->mv_type = mv_type;
- s->mb_intra = mb_intra;
- s->mb_skipped = mb_skipped;
- s->mb_x = mb_x;
- s->mb_y = mb_y;
- memcpy(s->mv, mv, sizeof(*mv));
-
- ff_init_block_index(s);
- ff_update_block_index(s);
-
- s->bdsp.clear_blocks(s->block[0]);
-
- s->dest[0] = s->current_picture.f->data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
- s->dest[1] = s->current_picture.f->data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
- s->dest[2] = s->current_picture.f->data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
-
- if (ref)
- av_log(s->avctx, AV_LOG_DEBUG,
- "Interlaced error concealment is not fully implemented\n");
- ff_mpv_decode_mb(s, s->block);
-}
static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
{
s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
- if (s->avctx->flags & CODEC_FLAG_BITEXACT)
+ if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
ff_mpv_common_init_ppc(s);
if (ARCH_X86)
ff_mpv_common_init_x86(s);
+ if (ARCH_MIPS)
+ ff_mpv_common_init_mips(s);
return 0;
}
if(s->picture)
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
- if (s1->picture[i].f->buf[0] &&
+ if (s1->picture && s1->picture[i].f->buf[0] &&
(ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
return ret;
}
if (s1->bitstream_buffer) {
if (s1->bitstream_buffer_size +
- FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
+ AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
av_fast_malloc(&s->bitstream_buffer,
&s->allocated_bitstream_buffer_size,
s1->allocated_bitstream_buffer_size);
memcpy(s->bitstream_buffer, s1->bitstream_buffer,
s1->bitstream_buffer_size);
memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
- FF_INPUT_BUFFER_PADDING_SIZE);
+ AV_INPUT_BUFFER_PADDING_SIZE);
}
// linesize dependend scratch buffer allocation
s->codec_tag = avpriv_toupper4(avctx->codec_tag);
}
-static int init_er(MpegEncContext *s)
-{
- ERContext *er = &s->er;
- int mb_array_size = s->mb_height * s->mb_stride;
- int i;
-
- er->avctx = s->avctx;
-
- er->mb_index2xy = s->mb_index2xy;
- er->mb_num = s->mb_num;
- er->mb_width = s->mb_width;
- er->mb_height = s->mb_height;
- er->mb_stride = s->mb_stride;
- er->b8_stride = s->b8_stride;
-
- er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
- er->error_status_table = av_mallocz(mb_array_size);
- if (!er->er_temp_buffer || !er->error_status_table)
- goto fail;
-
- er->mbskip_table = s->mbskip_table;
- er->mbintra_table = s->mbintra_table;
-
- for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
- er->dc_val[i] = s->dc_val[i];
-
- er->decode_mb = mpeg_er_decode_mb;
- er->opaque = s;
-
- return 0;
-fail:
- av_freep(&er->er_temp_buffer);
- av_freep(&er->error_status_table);
- return AVERROR(ENOMEM);
-}
-
/**
* Initialize and allocates MpegEncContext fields dependent on the resolution.
*/
}
if (s->codec_id == AV_CODEC_ID_MPEG4 ||
- (s->avctx->flags & CODEC_FLAG_INTERLACED_ME)) {
+ (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
/* interlaced direct mode decoding tables */
for (i = 0; i < 2; i++) {
int j, k;
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
// Note the + 1 is for a quicker mpeg4 slice_end detection
- return init_er(s);
+ return ff_mpeg_er_init(s);
fail:
return AVERROR(ENOMEM);
}
+static void clear_context(MpegEncContext *s)
+{
+ int i, j, k;
+
+ memset(&s->next_picture, 0, sizeof(s->next_picture));
+ memset(&s->last_picture, 0, sizeof(s->last_picture));
+ memset(&s->current_picture, 0, sizeof(s->current_picture));
+ memset(&s->new_picture, 0, sizeof(s->new_picture));
+
+ memset(s->thread_context, 0, sizeof(s->thread_context));
+
+ s->me.map = NULL;
+ s->me.score_map = NULL;
+ s->dct_error_sum = NULL;
+ s->block = NULL;
+ s->blocks = NULL;
+ memset(s->pblocks, 0, sizeof(s->pblocks));
+ s->ac_val_base = NULL;
+ s->ac_val[0] =
+ s->ac_val[1] =
+ s->ac_val[2] =NULL;
+ s->sc.edge_emu_buffer = NULL;
+ s->me.scratchpad = NULL;
+ s->me.temp =
+ s->sc.rd_scratchpad =
+ s->sc.b_scratchpad =
+ s->sc.obmc_scratchpad = NULL;
+
+ s->parse_context.buffer = NULL;
+ s->parse_context.buffer_size = 0;
+ s->parse_context.overread = 0;
+ s->bitstream_buffer = NULL;
+ s->allocated_bitstream_buffer_size = 0;
+ s->picture = NULL;
+ s->mb_type = NULL;
+ s->p_mv_table_base = NULL;
+ s->b_forw_mv_table_base = NULL;
+ s->b_back_mv_table_base = NULL;
+ s->b_bidir_forw_mv_table_base = NULL;
+ s->b_bidir_back_mv_table_base = NULL;
+ s->b_direct_mv_table_base = NULL;
+ s->p_mv_table = NULL;
+ s->b_forw_mv_table = NULL;
+ s->b_back_mv_table = NULL;
+ s->b_bidir_forw_mv_table = NULL;
+ s->b_bidir_back_mv_table = NULL;
+ s->b_direct_mv_table = NULL;
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 2; j++) {
+ for (k = 0; k < 2; k++) {
+ s->b_field_mv_table_base[i][j][k] = NULL;
+ s->b_field_mv_table[i][j][k] = NULL;
+ }
+ s->b_field_select_table[i][j] = NULL;
+ s->p_field_mv_table_base[i][j] = NULL;
+ s->p_field_mv_table[i][j] = NULL;
+ }
+ s->p_field_select_table[i] = NULL;
+ }
+
+ s->dc_val_base = NULL;
+ s->coded_block_base = NULL;
+ s->mbintra_table = NULL;
+ s->cbp_table = NULL;
+ s->pred_dir_table = NULL;
+
+ s->mbskip_table = NULL;
+
+ s->er.error_status_table = NULL;
+ s->er.er_temp_buffer = NULL;
+ s->mb_index2xy = NULL;
+ s->lambda_table = NULL;
+
+ s->cplx_tab = NULL;
+ s->bits_tab = NULL;
+}
+
/**
* init common structure for both encoder and decoder.
* this assumes that some variables like width/height are already set
s->avctx->active_thread_type & FF_THREAD_SLICE) ?
s->avctx->thread_count : 1;
+ clear_context(s);
+
if (s->encoding && s->avctx->slices)
nb_slices = s->avctx->slices;
if (!s->picture[i].f)
goto fail;
}
- memset(&s->next_picture, 0, sizeof(s->next_picture));
- memset(&s->last_picture, 0, sizeof(s->last_picture));
- memset(&s->current_picture, 0, sizeof(s->current_picture));
- memset(&s->new_picture, 0, sizeof(s->new_picture));
s->next_picture.f = av_frame_alloc();
if (!s->next_picture.f)
goto fail;
{
int i;
+ if (!s)
+ return ;
+
if (s->slice_context_count > 1) {
for (i = 0; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
if (&s->picture[i] != s->last_picture_ptr &&
&s->picture[i] != s->next_picture_ptr &&
s->picture[i].reference && !s->picture[i].needs_realloc) {
- if (!(avctx->active_thread_type & FF_THREAD_FRAME))
- av_log(avctx, AV_LOG_ERROR,
- "releasing zombie picture\n");
ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
}
}
s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
s->current_picture_ptr->f->pict_type = s->pict_type;
- // if (s->avctx->flags && CODEC_FLAG_QSCALE)
+ // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
// s->current_picture_ptr->quality = s->new_picture_ptr->quality;
s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
return -1;
}
- if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
+ if (!avctx->hwaccel
+#if FF_API_CAP_VDPAU
+ && !(avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
+#endif
+ ) {
for(i=0; i<avctx->height; i++)
memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
0x80, avctx->width);
static int add_mb(AVMotionVector *mb, uint32_t mb_type,
int dst_x, int dst_y,
- int src_x, int src_y,
+ int motion_x, int motion_y, int motion_scale,
int direction)
{
mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
- mb->src_x = src_x;
- mb->src_y = src_y;
+ mb->motion_x = motion_x;
+ mb->motion_y = motion_y;
+ mb->motion_scale = motion_scale;
mb->dst_x = dst_x;
mb->dst_y = dst_y;
+ mb->src_x = dst_x + motion_x / motion_scale;
+ mb->src_y = dst_y + motion_y / motion_scale;
mb->source = direction ? 1 : -1;
mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
return 1;
int *low_delay,
int mb_width, int mb_height, int mb_stride, int quarter_sample)
{
- if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
+ if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
const int shift = 1 + quarter_sample;
+ const int scale = 1 << shift;
const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
const int mv_stride = (mb_width << mv_sample_log2) +
(avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
int sy = mb_y * 16 + 4 + 8 * (i >> 1);
int xy = (mb_x * 2 + (i & 1) +
(mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
- int mx = (motion_val[direction][xy][0] >> shift) + sx;
- int my = (motion_val[direction][xy][1] >> shift) + sy;
- mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
+ int mx = motion_val[direction][xy][0];
+ int my = motion_val[direction][xy][1];
+ mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
}
} else if (IS_16X8(mb_type)) {
for (i = 0; i < 2; i++) {
int sx = mb_x * 16 + 8;
int sy = mb_y * 16 + 4 + 8 * i;
int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
- int mx = (motion_val[direction][xy][0] >> shift);
- int my = (motion_val[direction][xy][1] >> shift);
+ int mx = motion_val[direction][xy][0];
+ int my = motion_val[direction][xy][1];
if (IS_INTERLACED(mb_type))
my *= 2;
- mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
+ mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
}
} else if (IS_8X16(mb_type)) {
for (i = 0; i < 2; i++) {
int sx = mb_x * 16 + 4 + 8 * i;
int sy = mb_y * 16 + 8;
int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
- int mx = motion_val[direction][xy][0] >> shift;
- int my = motion_val[direction][xy][1] >> shift;
+ int mx = motion_val[direction][xy][0];
+ int my = motion_val[direction][xy][1];
if (IS_INTERLACED(mb_type))
my *= 2;
- mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
+ mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
}
} else {
int sx = mb_x * 16 + 8;
int sy = mb_y * 16 + 8;
int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
- int mx = (motion_val[direction][xy][0]>>shift) + sx;
- int my = (motion_val[direction][xy][1]>>shift) + sy;
- mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
+ int mx = motion_val[direction][xy][0];
+ int my = motion_val[direction][xy][1];
+ mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
}
}
}
/* TODO: export all the following to make them accessible for users (and filters) */
if (avctx->hwaccel || !mbtype_table
- || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
+#if FF_API_CAP_VDPAU
+ || (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
+#endif
+ )
return;
uint64_t u,v;
int y;
#define COLOR(theta, r) \
- u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
- v = (int)(128 + r * sin(theta * 3.141592 / 180));
+ u = (int)(128 + r * cos(theta * M_PI / 180)); \
+ v = (int)(128 + r * sin(theta * M_PI / 180));
u = v = 128;
src_x, src_y << field_based, h_edge_pos,
v_edge_pos);
ptr_y = s->sc.edge_emu_buffer;
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
sy = (sy << 2) >> lowres;
pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
uvsx = (uvsx << 2) >> lowres;
uvsy = (uvsy << 2) >> lowres;
my += s->mv[dir][i][1];
}
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY))
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
pix_op, mx, my);
break;
/**
* find the lowest MB row referenced in the MVs
*/
-int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
+static int lowest_referenced_row(MpegEncContext *s, int dir)
{
int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
int my, off, i, mvs;
else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
s->mbintra_table[mb_xy]=1;
- if ((s->avctx->flags & CODEC_FLAG_PSNR) || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor ||
+ if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor ||
!(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
uint8_t *dest_y, *dest_cb, *dest_cr;
if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
if (s->mv_dir & MV_DIR_FORWARD) {
ff_thread_await_progress(&s->last_picture_ptr->tf,
- ff_mpv_lowest_referenced_row(s, 0),
+ lowest_referenced_row(s, 0),
0);
}
if (s->mv_dir & MV_DIR_BACKWARD) {
ff_thread_await_progress(&s->next_picture_ptr->tf,
- ff_mpv_lowest_referenced_row(s, 1),
+ lowest_referenced_row(s, 1),
0);
}
}
add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
if (s->chroma_y_shift){
add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
if(s->chroma_y_shift){//Chroma420
add_dct(s, block[4], 4, dest_cb, uvlinesize);
add_dct(s, block[5], 5, dest_cr, uvlinesize);
put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
if(s->chroma_y_shift){
put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
if(s->chroma_y_shift){
s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
skip_idct:
if(!readable){
s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
- if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
+ if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
}
}
}
-/**
- * Permute an 8x8 block.
- * @param block the block which will be permuted according to the given permutation vector
- * @param permutation the permutation vector
- * @param last the last non zero coefficient in scantable order, used to speed the permutation up
- * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
- * (inverse) permutated to scantable order!
- */
-void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
-{
- int i;
- int16_t temp[64];
-
- if(last<=0) return;
- //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
-
- for(i=0; i<=last; i++){
- const int j= scantable[i];
- temp[j]= block[j];
- block[j]=0;
- }
-
- for(i=0; i<=last; i++){
- const int j= scantable[i];
- const int perm_j= permutation[j];
- block[perm_j]= temp[j];
- }
-}
-
void ff_mpeg_flush(AVCodecContext *avctx){
int i;
MpegEncContext *s = avctx->priv_data;