/*
* DV decoder
- * Copyright (c) 2002 Fabrice Bellard.
- * Copyright (c) 2004 Roman Shaposhnik.
+ * Copyright (c) 2002 Fabrice Bellard
+ * Copyright (c) 2004 Roman Shaposhnik
*
* DV encoder
- * Copyright (c) 2003 Roman Shaposhnik.
+ * Copyright (c) 2003 Roman Shaposhnik
*
* 50 Mbps (DVCPRO50) support
* Copyright (c) 2006 Daniel Maas <dmaas@maasdigital.com>
*
+ * 100 Mbps (DVCPRO HD) support
+ * Initial code by Daniel Maas <dmaas@maasdigital.com> (funded by BBC R&D)
+ * Final code by Roman Shaposhnik
+ *
* Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth
* of DV technical info.
*
*/
/**
- * @file dv.c
+ * @file libavcodec/dv.c
* DV codec.
*/
#define ALT_BITSTREAM_READER
#include "avcodec.h"
#include "dsputil.h"
-#include "mpegvideo.h"
+#include "get_bits.h"
+#include "put_bits.h"
#include "simple_idct.h"
#include "dvdata.h"
//#include <assert.h>
typedef struct DVVideoContext {
- const DVprofile* sys;
- AVFrame picture;
- AVCodecContext *avctx;
- uint8_t *buf;
+ const DVprofile *sys;
+ AVFrame picture;
+ AVCodecContext *avctx;
+ uint8_t *buf;
- uint8_t dv_zigzag[2][64];
- uint8_t dv_idct_shift[2][2][22][64];
+ uint8_t dv_zigzag[2][64];
void (*get_pixels)(DCTELEM *block, const uint8_t *pixels, int line_size);
void (*fdct[2])(DCTELEM *block);
void (*idct_put[2])(uint8_t *dest, int line_size, DCTELEM *block);
+ me_cmp_func ildct_cmp;
} DVVideoContext;
-/* MultiThreading - dv_anchor applies to entire DV codec, not just the avcontext */
-/* one element is needed for each video segment in a DV frame */
-/* at most there are 2 DIF channels * 12 DIF sequences * 27 video segments (PAL 50Mbps) */
-#define DV_ANCHOR_SIZE (2*12*27)
-
-static void* dv_anchor[DV_ANCHOR_SIZE];
-
#define TEX_VLC_BITS 9
-#ifdef DV_CODEC_TINY_TARGET
+#if CONFIG_SMALL
#define DV_VLC_MAP_RUN_SIZE 15
#define DV_VLC_MAP_LEV_SIZE 23
#else
#endif
/* XXX: also include quantization */
-static RL_VLC_ELEM *dv_rl_vlc;
+static RL_VLC_ELEM dv_rl_vlc[1184];
/* VLC encoding lookup table */
static struct dv_vlc_pair {
uint32_t vlc;
uint8_t size;
-} (*dv_vlc_map)[DV_VLC_MAP_LEV_SIZE] = NULL;
+} dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE];
+
+static inline int dv_work_pool_size(const DVprofile *d)
+{
+ int size = d->n_difchan*d->difseg_size*27;
+ if (DV_PROFILE_IS_1080i50(d))
+ size -= 3*27;
+ if (DV_PROFILE_IS_720p50(d))
+ size -= 4*27;
+ return size;
+}
+
+static inline void dv_calc_mb_coordinates(const DVprofile *d, int chan, int seq, int slot,
+ uint16_t *tbl)
+{
+ static const uint8_t off[] = { 2, 6, 8, 0, 4 };
+ static const uint8_t shuf1[] = { 36, 18, 54, 0, 72 };
+ static const uint8_t shuf2[] = { 24, 12, 36, 0, 48 };
+ static const uint8_t shuf3[] = { 18, 9, 27, 0, 36 };
+
+ static const uint8_t l_start[] = {0, 4, 9, 13, 18, 22, 27, 31, 36, 40};
+ static const uint8_t l_start_shuffled[] = { 9, 4, 13, 0, 18 };
+
+ static const uint8_t serpent1[] = {0, 1, 2, 2, 1, 0,
+ 0, 1, 2, 2, 1, 0,
+ 0, 1, 2, 2, 1, 0,
+ 0, 1, 2, 2, 1, 0,
+ 0, 1, 2};
+ static const uint8_t serpent2[] = {0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
+ 0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
+ 0, 1, 2, 3, 4, 5};
+
+ static const uint8_t remap[][2] = {{ 0, 0}, { 0, 0}, { 0, 0}, { 0, 0}, /* dummy */
+ { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3}, {10, 0},
+ {10, 1}, {10, 2}, {10, 3}, {20, 0}, {20, 1},
+ {20, 2}, {20, 3}, {30, 0}, {30, 1}, {30, 2},
+ {30, 3}, {40, 0}, {40, 1}, {40, 2}, {40, 3},
+ {50, 0}, {50, 1}, {50, 2}, {50, 3}, {60, 0},
+ {60, 1}, {60, 2}, {60, 3}, {70, 0}, {70, 1},
+ {70, 2}, {70, 3}, { 0,64}, { 0,65}, { 0,66},
+ {10,64}, {10,65}, {10,66}, {20,64}, {20,65},
+ {20,66}, {30,64}, {30,65}, {30,66}, {40,64},
+ {40,65}, {40,66}, {50,64}, {50,65}, {50,66},
+ {60,64}, {60,65}, {60,66}, {70,64}, {70,65},
+ {70,66}, { 0,67}, {20,67}, {40,67}, {60,67}};
+
+ int i, k, m;
+ int x, y, blk;
+
+ for (m=0; m<5; m++) {
+ switch (d->width) {
+ case 1440:
+ blk = (chan*11+seq)*27+slot;
+
+ if (chan == 0 && seq == 11) {
+ x = m*27+slot;
+ if (x<90) {
+ y = 0;
+ } else {
+ x = (x - 90)*2;
+ y = 67;
+ }
+ } else {
+ i = (4*chan + blk + off[m])%11;
+ k = (blk/11)%27;
+
+ x = shuf1[m] + (chan&1)*9 + k%9;
+ y = (i*3+k/9)*2 + (chan>>1) + 1;
+ }
+ tbl[m] = (x<<1)|(y<<9);
+ break;
+ case 1280:
+ blk = (chan*10+seq)*27+slot;
+
+ i = (4*chan + (seq/5) + 2*blk + off[m])%10;
+ k = (blk/5)%27;
+
+ x = shuf1[m]+(chan&1)*9 + k%9;
+ y = (i*3+k/9)*2 + (chan>>1) + 4;
+
+ if (x >= 80) {
+ x = remap[y][0]+((x-80)<<(y>59));
+ y = remap[y][1];
+ }
+ tbl[m] = (x<<1)|(y<<9);
+ break;
+ case 960:
+ blk = (chan*10+seq)*27+slot;
+
+ i = (4*chan + (seq/5) + 2*blk + off[m])%10;
+ k = (blk/5)%27 + (i&1)*3;
+
+ x = shuf2[m] + k%6 + 6*(chan&1);
+ y = l_start[i] + k/6 + 45*(chan>>1);
+ tbl[m] = (x<<1)|(y<<9);
+ break;
+ case 720:
+ switch (d->pix_fmt) {
+ case PIX_FMT_YUV422P:
+ x = shuf3[m] + slot/3;
+ y = serpent1[slot] +
+ ((((seq + off[m]) % d->difseg_size)<<1) + chan)*3;
+ tbl[m] = (x<<1)|(y<<8);
+ break;
+ case PIX_FMT_YUV420P:
+ x = shuf3[m] + slot/3;
+ y = serpent1[slot] +
+ ((seq + off[m]) % d->difseg_size)*3;
+ tbl[m] = (x<<1)|(y<<9);
+ break;
+ case PIX_FMT_YUV411P:
+ i = (seq + off[m]) % d->difseg_size;
+ k = slot + ((m==1||m==2)?3:0);
+
+ x = l_start_shuffled[m] + k/6;
+ y = serpent2[k] + i*6;
+ if (x>21)
+ y = y*2 - i*6;
+ tbl[m] = (x<<2)|(y<<8);
+ break;
+ }
+ default:
+ break;
+ }
+ }
+}
-static void dv_build_unquantize_tables(DVVideoContext *s, uint8_t* perm)
+static int dv_init_dynamic_tables(const DVprofile *d)
{
- int i, q, j;
-
- /* NOTE: max left shift is 6 */
- for(q = 0; q < 22; q++) {
- /* 88DCT */
- for(i = 1; i < 64; i++) {
- /* 88 table */
- j = perm[i];
- s->dv_idct_shift[0][0][q][j] =
- dv_quant_shifts[q][dv_88_areas[i]] + 1;
- s->dv_idct_shift[1][0][q][j] = s->dv_idct_shift[0][0][q][j] + 1;
+ int j,i,c,s,p;
+ uint32_t *factor1, *factor2;
+ const int *iweight1, *iweight2;
+
+ if (!d->work_chunks[dv_work_pool_size(d)-1].buf_offset) {
+ p = i = 0;
+ for (c=0; c<d->n_difchan; c++) {
+ for (s=0; s<d->difseg_size; s++) {
+ p += 6;
+ for (j=0; j<27; j++) {
+ p += !(j%3);
+ if (!(DV_PROFILE_IS_1080i50(d) && c != 0 && s == 11) &&
+ !(DV_PROFILE_IS_720p50(d) && s > 9)) {
+ dv_calc_mb_coordinates(d, c, s, j, &d->work_chunks[i].mb_coordinates[0]);
+ d->work_chunks[i++].buf_offset = p;
+ }
+ p += 5;
+ }
+ }
}
+ }
- /* 248DCT */
- for(i = 1; i < 64; i++) {
- /* 248 table */
- s->dv_idct_shift[0][1][q][i] =
- dv_quant_shifts[q][dv_248_areas[i]] + 1;
- s->dv_idct_shift[1][1][q][i] = s->dv_idct_shift[0][1][q][i] + 1;
+ if (!d->idct_factor[DV_PROFILE_IS_HD(d)?8191:5631]) {
+ factor1 = &d->idct_factor[0];
+ factor2 = &d->idct_factor[DV_PROFILE_IS_HD(d)?4096:2816];
+ if (d->height == 720) {
+ iweight1 = &dv_iweight_720_y[0];
+ iweight2 = &dv_iweight_720_c[0];
+ } else {
+ iweight1 = &dv_iweight_1080_y[0];
+ iweight2 = &dv_iweight_1080_c[0];
+ }
+ if (DV_PROFILE_IS_HD(d)) {
+ for (c = 0; c < 4; c++) {
+ for (s = 0; s < 16; s++) {
+ for (i = 0; i < 64; i++) {
+ *factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
+ *factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
+ }
+ }
+ }
+ } else {
+ iweight1 = &dv_iweight_88[0];
+ for (j = 0; j < 2; j++, iweight1 = &dv_iweight_248[0]) {
+ for (s = 0; s < 22; s++) {
+ for (i = c = 0; c < 4; c++) {
+ for (; i < dv_quant_areas[c]; i++) {
+ *factor1 = iweight1[i] << (dv_quant_shifts[s][c] + 1);
+ *factor2++ = (*factor1++) << 1;
}
}
+ }
+ }
+ }
+}
+
+ return 0;
}
-static int dvvideo_init(AVCodecContext *avctx)
+static av_cold int dvvideo_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
DSPContext dsp;
- static int done=0;
+ static int done = 0;
int i, j;
if (!done) {
VLC dv_vlc;
uint16_t new_dv_vlc_bits[NB_DV_VLC*2];
- uint8_t new_dv_vlc_len[NB_DV_VLC*2];
- uint8_t new_dv_vlc_run[NB_DV_VLC*2];
- int16_t new_dv_vlc_level[NB_DV_VLC*2];
+ uint8_t new_dv_vlc_len[NB_DV_VLC*2];
+ uint8_t new_dv_vlc_run[NB_DV_VLC*2];
+ int16_t new_dv_vlc_level[NB_DV_VLC*2];
done = 1;
- dv_vlc_map = av_mallocz_static(DV_VLC_MAP_LEV_SIZE*DV_VLC_MAP_RUN_SIZE*sizeof(struct dv_vlc_pair));
- if (!dv_vlc_map)
- return -ENOMEM;
-
- /* dv_anchor lets each thread know its Id */
- for (i=0; i<DV_ANCHOR_SIZE; i++)
- dv_anchor[i] = (void*)(size_t)i;
-
/* it's faster to include sign bit in a generic VLC parsing scheme */
- for (i=0, j=0; i<NB_DV_VLC; i++, j++) {
- new_dv_vlc_bits[j] = dv_vlc_bits[i];
- new_dv_vlc_len[j] = dv_vlc_len[i];
- new_dv_vlc_run[j] = dv_vlc_run[i];
+ for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) {
+ new_dv_vlc_bits[j] = dv_vlc_bits[i];
+ new_dv_vlc_len[j] = dv_vlc_len[i];
+ new_dv_vlc_run[j] = dv_vlc_run[i];
new_dv_vlc_level[j] = dv_vlc_level[i];
if (dv_vlc_level[i]) {
new_dv_vlc_len[j]++;
j++;
- new_dv_vlc_bits[j] = (dv_vlc_bits[i] << 1) | 1;
- new_dv_vlc_len[j] = dv_vlc_len[i] + 1;
- new_dv_vlc_run[j] = dv_vlc_run[i];
+ new_dv_vlc_bits[j] = (dv_vlc_bits[i] << 1) | 1;
+ new_dv_vlc_len[j] = dv_vlc_len[i] + 1;
+ new_dv_vlc_run[j] = dv_vlc_run[i];
new_dv_vlc_level[j] = -dv_vlc_level[i];
}
}
to accelerate the parsing of partial codes */
init_vlc(&dv_vlc, TEX_VLC_BITS, j,
new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0);
+ assert(dv_vlc.table_size == 1184);
- dv_rl_vlc = av_mallocz_static(dv_vlc.table_size * sizeof(RL_VLC_ELEM));
- if (!dv_rl_vlc)
- return -ENOMEM;
-
- for(i = 0; i < dv_vlc.table_size; i++){
- int code= dv_vlc.table[i][0];
- int len = dv_vlc.table[i][1];
+ for (i = 0; i < dv_vlc.table_size; i++){
+ int code = dv_vlc.table[i][0];
+ int len = dv_vlc.table[i][1];
int level, run;
- if(len<0){ //more bits needed
- run= 0;
- level= code;
+ if (len < 0){ //more bits needed
+ run = 0;
+ level = code;
} else {
- run= new_dv_vlc_run[code] + 1;
- level= new_dv_vlc_level[code];
+ run = new_dv_vlc_run [code] + 1;
+ level = new_dv_vlc_level[code];
}
- dv_rl_vlc[i].len = len;
+ dv_rl_vlc[i].len = len;
dv_rl_vlc[i].level = level;
- dv_rl_vlc[i].run = run;
+ dv_rl_vlc[i].run = run;
}
free_vlc(&dv_vlc);
for (i = 0; i < NB_DV_VLC - 1; i++) {
if (dv_vlc_run[i] >= DV_VLC_MAP_RUN_SIZE)
continue;
-#ifdef DV_CODEC_TINY_TARGET
+#if CONFIG_SMALL
if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE)
continue;
#endif
if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0)
continue;
- dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = dv_vlc_bits[i] <<
- (!!dv_vlc_level[i]);
- dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = dv_vlc_len[i] +
- (!!dv_vlc_level[i]);
+ dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc =
+ dv_vlc_bits[i] << (!!dv_vlc_level[i]);
+ dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size =
+ dv_vlc_len[i] + (!!dv_vlc_level[i]);
}
for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) {
-#ifdef DV_CODEC_TINY_TARGET
+#if CONFIG_SMALL
for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) {
if (dv_vlc_map[i][j].size == 0) {
dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
/* Generic DSP setup */
dsputil_init(&dsp, avctx);
+ ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp);
s->get_pixels = dsp.get_pixels;
+ s->ildct_cmp = dsp.ildct_cmp[5];
/* 88DCT setup */
- s->fdct[0] = dsp.fdct;
+ s->fdct[0] = dsp.fdct;
s->idct_put[0] = dsp.idct_put;
- for (i=0; i<64; i++)
+ for (i = 0; i < 64; i++)
s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]];
/* 248DCT setup */
- s->fdct[1] = dsp.fdct248;
- s->idct_put[1] = simple_idct248_put; // FIXME: need to add it to DSP
- if(avctx->lowres){
- for (i=0; i<64; i++){
- int j= ff_zigzag248_direct[i];
- s->dv_zigzag[1][i] = dsp.idct_permutation[(j&7) + (j&8)*4 + (j&48)/2];
+ s->fdct[1] = dsp.fdct248;
+ s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP
+ if (avctx->lowres){
+ for (i = 0; i < 64; i++){
+ int j = ff_zigzag248_direct[i];
+ s->dv_zigzag[1][i] = dsp.idct_permutation[(j & 7) + (j & 8) * 4 + (j & 48) / 2];
}
}else
memcpy(s->dv_zigzag[1], ff_zigzag248_direct, 64);
- /* XXX: do it only for constant case */
- dv_build_unquantize_tables(s, dsp.idct_permutation);
-
avctx->coded_frame = &s->picture;
- s->avctx= avctx;
+ s->avctx = avctx;
+ avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
return 0;
}
// #define printf(...) av_log(NULL, AV_LOG_ERROR, __VA_ARGS__)
typedef struct BlockInfo {
- const uint8_t *shift_table;
+ const uint32_t *factor_table;
const uint8_t *scan_table;
- const int *iweight_table;
uint8_t pos; /* position in block */
- uint8_t dct_mode;
+ void (*idct_put)(uint8_t *dest, int line_size, DCTELEM *block);
uint8_t partial_bit_count;
uint16_t partial_bit_buffer;
int shift_offset;
} BlockInfo;
-/* block size in bits */
-static const uint16_t block_sizes[6] = {
- 112, 112, 112, 112, 80, 80
-};
/* bit budget for AC only in 5 MBs */
static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5;
/* see dv_88_areas and dv_248_areas for details */
return s->size_in_bits - get_bits_count(s);
}
-static inline int get_bits_size(GetBitContext *s)
-{
- return s->size_in_bits;
-}
-
static inline int put_bits_left(PutBitContext* s)
{
return (s->buf_end - s->buf) * 8 - put_bits_count(s);
}
-/* decode ac coefs */
+/* decode ac coefficients */
static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
{
- int last_index = get_bits_size(gb);
- const uint8_t *scan_table = mb->scan_table;
- const uint8_t *shift_table = mb->shift_table;
- const int *iweight_table = mb->iweight_table;
- int pos = mb->pos;
+ int last_index = gb->size_in_bits;
+ const uint8_t *scan_table = mb->scan_table;
+ const uint32_t *factor_table = mb->factor_table;
+ int pos = mb->pos;
int partial_bit_count = mb->partial_bit_count;
- int level, pos1, run, vlc_len, index;
+ int level, run, vlc_len, index;
OPEN_READER(re, gb);
UPDATE_CACHE(re, gb);
/* if we must parse a partial vlc, we do it here */
if (partial_bit_count > 0) {
re_cache = ((unsigned)re_cache >> partial_bit_count) |
- (mb->partial_bit_buffer << (sizeof(re_cache)*8 - partial_bit_count));
+ (mb->partial_bit_buffer << (sizeof(re_cache) * 8 - partial_bit_count));
re_index -= partial_bit_count;
mb->partial_bit_count = 0;
}
/* get the AC coefficients until last_index is reached */
- for(;;) {
+ for (;;) {
#ifdef VLC_DEBUG
printf("%2d: bits=%04x index=%d\n", pos, SHOW_UBITS(re, gb, 16), re_index);
#endif
/* our own optimized GET_RL_VLC */
- index = NEG_USR32(re_cache, TEX_VLC_BITS);
+ index = NEG_USR32(re_cache, TEX_VLC_BITS);
vlc_len = dv_rl_vlc[index].len;
if (vlc_len < 0) {
index = NEG_USR32((unsigned)re_cache << TEX_VLC_BITS, -vlc_len) + dv_rl_vlc[index].level;
vlc_len = TEX_VLC_BITS - vlc_len;
}
level = dv_rl_vlc[index].level;
- run = dv_rl_vlc[index].run;
+ run = dv_rl_vlc[index].run;
/* gotta check if we're still within gb boundaries */
if (re_index + vlc_len > last_index) {
if (pos >= 64)
break;
- pos1 = scan_table[pos];
- level <<= shift_table[pos1];
-
- /* unweigh, round, and shift down */
- level = (level*iweight_table[pos] + (1 << (dv_iweight_bits-1))) >> dv_iweight_bits;
-
- block[pos1] = level;
+ level = (level * factor_table[pos] + (1 << (dv_iweight_bits - 1))) >> dv_iweight_bits;
+ block[scan_table[pos]] = level;
UPDATE_CACHE(re, gb);
}
}
}
+static inline void dv_calculate_mb_xy(DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y)
+{
+ *mb_x = work_chunk->mb_coordinates[m] & 0xff;
+ *mb_y = work_chunk->mb_coordinates[m] >> 8;
+
+ /* We work with 720p frames split in half. The odd half-frame (chan==2,3) is displaced :-( */
+ if (s->sys->height == 720 && !(s->buf[1]&0x0C)) {
+ *mb_y -= (*mb_y>17)?18:-72; /* shifting the Y coordinate down by 72/2 macro blocks */
+ }
+}
+
/* mb_x and mb_y are in units of 8 pixels */
-static inline void dv_decode_video_segment(DVVideoContext *s,
- uint8_t *buf_ptr1,
- const uint16_t *mb_pos_ptr)
+static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
{
+ DVVideoContext *s = avctx->priv_data;
+ DVwork_chunk *work_chunk = arg;
int quant, dc, dct_mode, class1, j;
- int mb_index, mb_x, mb_y, v, last_index;
+ int mb_index, mb_x, mb_y, last_index;
+ int y_stride, linesize;
DCTELEM *block, *block1;
int c_offset;
uint8_t *y_ptr;
- void (*idct_put)(uint8_t *dest, int line_size, DCTELEM *block);
- uint8_t *buf_ptr;
+ const uint8_t *buf_ptr;
PutBitContext pb, vs_pb;
GetBitContext gb;
- BlockInfo mb_data[5 * 6], *mb, *mb1;
- DECLARE_ALIGNED_8(DCTELEM, sblock[5*6][64]);
+ BlockInfo mb_data[5 * DV_MAX_BPM], *mb, *mb1;
+ DECLARE_ALIGNED_16(DCTELEM, sblock[5*DV_MAX_BPM][64]);
DECLARE_ALIGNED_8(uint8_t, mb_bit_buffer[80 + 4]); /* allow some slack */
DECLARE_ALIGNED_8(uint8_t, vs_bit_buffer[5 * 80 + 4]); /* allow some slack */
- const int log2_blocksize= 3-s->avctx->lowres;
+ const int log2_blocksize = 3-s->avctx->lowres;
+ int is_field_mode[5];
- assert((((int)mb_bit_buffer)&7)==0);
- assert((((int)vs_bit_buffer)&7)==0);
+ assert((((int)mb_bit_buffer) & 7) == 0);
+ assert((((int)vs_bit_buffer) & 7) == 0);
memset(sblock, 0, sizeof(sblock));
/* pass 1 : read DC and AC coefficients in blocks */
- buf_ptr = buf_ptr1;
- block1 = &sblock[0][0];
- mb1 = mb_data;
+ buf_ptr = &s->buf[work_chunk->buf_offset*80];
+ block1 = &sblock[0][0];
+ mb1 = mb_data;
init_put_bits(&vs_pb, vs_bit_buffer, 5 * 80);
- for(mb_index = 0; mb_index < 5; mb_index++, mb1 += 6, block1 += 6 * 64) {
+ for (mb_index = 0; mb_index < 5; mb_index++, mb1 += s->sys->bpm, block1 += s->sys->bpm * 64) {
/* skip header */
quant = buf_ptr[3] & 0x0f;
buf_ptr += 4;
init_put_bits(&pb, mb_bit_buffer, 80);
- mb = mb1;
+ mb = mb1;
block = block1;
- for(j = 0;j < 6; j++) {
- last_index = block_sizes[j];
+ is_field_mode[mb_index] = 0;
+ for (j = 0; j < s->sys->bpm; j++) {
+ last_index = s->sys->block_sizes[j];
init_get_bits(&gb, buf_ptr, last_index);
/* get the dc */
- dc = get_sbits(&gb, 9);
+ dc = get_sbits(&gb, 9);
dct_mode = get_bits1(&gb);
- mb->dct_mode = dct_mode;
- mb->scan_table = s->dv_zigzag[dct_mode];
- mb->iweight_table = dct_mode ? dv_iweight_248 : dv_iweight_88;
- class1 = get_bits(&gb, 2);
- mb->shift_table = s->dv_idct_shift[class1 == 3][dct_mode]
- [quant + dv_quant_offset[class1]];
+ class1 = get_bits(&gb, 2);
+ if (DV_PROFILE_IS_HD(s->sys)) {
+ mb->idct_put = s->idct_put[0];
+ mb->scan_table = s->dv_zigzag[0];
+ mb->factor_table = &s->sys->idct_factor[(j >= 4)*4*16*64 + class1*16*64 + quant*64];
+ is_field_mode[mb_index] |= !j && dct_mode;
+ } else {
+ mb->idct_put = s->idct_put[dct_mode && log2_blocksize == 3];
+ mb->scan_table = s->dv_zigzag[dct_mode];
+ mb->factor_table = &s->sys->idct_factor[(class1 == 3)*2*22*64 + dct_mode*22*64 +
+ (quant + dv_quant_offset[class1])*64];
+ }
dc = dc << 2;
/* convert to unsigned because 128 is not added in the
standard IDCT */
dc += 1024;
block[0] = dc;
buf_ptr += last_index >> 3;
- mb->pos = 0;
+ mb->pos = 0;
mb->partial_bit_count = 0;
#ifdef VLC_DEBUG
printf("***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index);
#endif
block = block1;
- mb = mb1;
+ mb = mb1;
init_get_bits(&gb, mb_bit_buffer, put_bits_count(&pb));
flush_put_bits(&pb);
- for(j = 0;j < 6; j++, block += 64, mb++) {
+ for (j = 0; j < s->sys->bpm; j++, block += 64, mb++) {
if (mb->pos < 64 && get_bits_left(&gb) > 0) {
dv_decode_ac(&gb, mb, block);
/* if still not finished, no need to parse other blocks */
}
/* all blocks are finished, so the extra bytes can be used at
the video segment level */
- if (j >= 6)
+ if (j >= s->sys->bpm)
bit_copy(&vs_pb, &gb);
}
printf("***pass 3 size=%d\n", put_bits_count(&vs_pb));
#endif
block = &sblock[0][0];
- mb = mb_data;
+ mb = mb_data;
init_get_bits(&gb, vs_bit_buffer, put_bits_count(&vs_pb));
flush_put_bits(&vs_pb);
- for(mb_index = 0; mb_index < 5; mb_index++) {
- for(j = 0;j < 6; j++) {
+ for (mb_index = 0; mb_index < 5; mb_index++) {
+ for (j = 0; j < s->sys->bpm; j++) {
if (mb->pos < 64) {
#ifdef VLC_DEBUG
printf("start %d:%d\n", mb_index, j);
/* compute idct and place blocks */
block = &sblock[0][0];
- mb = mb_data;
- for(mb_index = 0; mb_index < 5; mb_index++) {
- v = *mb_pos_ptr++;
- mb_x = v & 0xff;
- mb_y = v >> 8;
- if (s->sys->pix_fmt == PIX_FMT_YUV422P) {
- y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + (mb_x>>1))<<log2_blocksize);
- c_offset = ((mb_y * s->picture.linesize[1] + (mb_x >> 2))<<log2_blocksize);
- } else { /* 4:1:1 or 4:2:0 */
- y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x)<<log2_blocksize);
- if (s->sys->pix_fmt == PIX_FMT_YUV411P)
- c_offset = ((mb_y * s->picture.linesize[1] + (mb_x >> 2))<<log2_blocksize);
- else /* 4:2:0 */
- c_offset = (((mb_y >> 1) * s->picture.linesize[1] + (mb_x >> 1))<<log2_blocksize);
+ mb = mb_data;
+ for (mb_index = 0; mb_index < 5; mb_index++) {
+ dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);
+
+ /* idct_put'ting luminance */
+ if ((s->sys->pix_fmt == PIX_FMT_YUV420P) ||
+ (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) ||
+ (s->sys->height >= 720 && mb_y != 134)) {
+ y_stride = (s->picture.linesize[0] << ((!is_field_mode[mb_index]) * log2_blocksize));
+ } else {
+ y_stride = (2 << log2_blocksize);
}
- for(j = 0;j < 6; j++) {
- idct_put = s->idct_put[mb->dct_mode && log2_blocksize==3];
- if (s->sys->pix_fmt == PIX_FMT_YUV422P) { /* 4:2:2 */
- if (j == 0 || j == 2) {
- /* Y0 Y1 */
- idct_put(y_ptr + ((j >> 1)<<log2_blocksize),
- s->picture.linesize[0], block);
- } else if(j > 3) {
- /* Cr Cb */
- idct_put(s->picture.data[6 - j] + c_offset,
- s->picture.linesize[6 - j], block);
- }
- /* note: j=1 and j=3 are "dummy" blocks in 4:2:2 */
- } else { /* 4:1:1 or 4:2:0 */
- if (j < 4) {
- if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) {
- /* NOTE: at end of line, the macroblock is handled as 420 */
- idct_put(y_ptr + (j<<log2_blocksize), s->picture.linesize[0], block);
- } else {
- idct_put(y_ptr + (((j & 1) + (j >> 1) * s->picture.linesize[0])<<log2_blocksize),
- s->picture.linesize[0], block);
- }
- } else {
- if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
- uint64_t aligned_pixels[64/8];
- uint8_t *pixels= (uint8_t*)aligned_pixels;
- uint8_t *c_ptr, *c_ptr1, *ptr, *ptr1;
- int x, y, linesize;
- /* NOTE: at end of line, the macroblock is handled as 420 */
- idct_put(pixels, 8, block);
- linesize = s->picture.linesize[6 - j];
- c_ptr = s->picture.data[6 - j] + c_offset;
- ptr = pixels;
- for(y = 0;y < (1<<log2_blocksize); y++) {
- ptr1= ptr + (1<<(log2_blocksize-1));
- c_ptr1 = c_ptr + (linesize<<log2_blocksize);
- for(x=0; x < (1<<(log2_blocksize-1)); x++){
- c_ptr[x]= ptr[x]; c_ptr1[x]= ptr1[x];
- }
- c_ptr += linesize;
- ptr += 8;
- }
- } else {
- /* don't ask me why they inverted Cb and Cr ! */
- idct_put(s->picture.data[6 - j] + c_offset,
- s->picture.linesize[6 - j], block);
- }
- }
+ y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << log2_blocksize);
+ linesize = s->picture.linesize[0] << is_field_mode[mb_index];
+ mb[0] .idct_put(y_ptr , linesize, block + 0*64);
+ if (s->sys->video_stype == 4) { /* SD 422 */
+ mb[2].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 2*64);
+ } else {
+ mb[1].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 1*64);
+ mb[2].idct_put(y_ptr + y_stride, linesize, block + 2*64);
+ mb[3].idct_put(y_ptr + (1 << log2_blocksize) + y_stride, linesize, block + 3*64);
+ }
+ mb += 4;
+ block += 4*64;
+
+ /* idct_put'ting chrominance */
+ c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] +
+ (mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << log2_blocksize);
+ for (j = 2; j; j--) {
+ uint8_t *c_ptr = s->picture.data[j] + c_offset;
+ if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
+ uint64_t aligned_pixels[64/8];
+ uint8_t *pixels = (uint8_t*)aligned_pixels;
+ uint8_t *c_ptr1, *ptr1;
+ int x, y;
+ mb->idct_put(pixels, 8, block);
+ for (y = 0; y < (1 << log2_blocksize); y++, c_ptr += s->picture.linesize[j], pixels += 8) {
+ ptr1 = pixels + (1 << (log2_blocksize - 1));
+ c_ptr1 = c_ptr + (s->picture.linesize[j] << log2_blocksize);
+ for (x = 0; x < (1 << (log2_blocksize - 1)); x++) {
+ c_ptr[x] = pixels[x];
+ c_ptr1[x] = ptr1[x];
+ }
+ }
+ block += 64; mb++;
+ } else {
+ y_stride = (mb_y == 134) ? (1 << log2_blocksize) :
+ s->picture.linesize[j] << ((!is_field_mode[mb_index]) * log2_blocksize);
+ linesize = s->picture.linesize[j] << is_field_mode[mb_index];
+ (mb++)-> idct_put(c_ptr , linesize, block); block += 64;
+ if (s->sys->bpm == 8) {
+ (mb++)->idct_put(c_ptr + y_stride, linesize, block); block += 64;
+ }
}
- block += 64;
- mb++;
}
}
+ return 0;
}
-#ifdef DV_CODEC_TINY_TARGET
+#if CONFIG_SMALL
/* Converts run and level (where level != 0) pair into vlc, returning bit size */
static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc)
{
if (run) {
*vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc :
(0x1f80 | (run - 1))) << size;
- size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
+ size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
}
}
#endif
typedef struct EncBlockInfo {
- int area_q[4];
- int bit_size[4];
- int prev[5];
- int cur_ac;
- int cno;
- int dct_mode;
- DCTELEM mb[64];
- uint8_t next[64];
- uint8_t sign[64];
- uint8_t partial_bit_count;
+ int area_q[4];
+ int bit_size[4];
+ int prev[5];
+ int cur_ac;
+ int cno;
+ int dct_mode;
+ DCTELEM mb[64];
+ uint8_t next[64];
+ uint8_t sign[64];
+ uint8_t partial_bit_count;
uint32_t partial_bit_buffer; /* we can't use uint16_t here */
} EncBlockInfo;
-static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool,
- PutBitContext* pb_end)
+static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi,
+ PutBitContext* pb_pool,
+ PutBitContext* pb_end)
{
- int prev;
- int bits_left;
+ int prev, bits_left;
PutBitContext* pb = pb_pool;
int size = bi->partial_bit_count;
uint32_t vlc = bi->partial_bit_buffer;
bi->partial_bit_count = bi->partial_bit_buffer = 0;
- for(;;){
+ for (;;){
/* Find suitable storage space */
for (; size > (bits_left = put_bits_left(pb)); pb++) {
if (bits_left) {
size -= bits_left;
put_bits(pb, bits_left, vlc >> size);
- vlc = vlc & ((1<<size)-1);
+ vlc = vlc & ((1 << size) - 1);
}
if (pb + 1 >= pb_end) {
- bi->partial_bit_count = size;
+ bi->partial_bit_count = size;
bi->partial_bit_buffer = vlc;
return pb;
}
/* Store VLC */
put_bits(pb, size, vlc);
- if(bi->cur_ac>=64)
+ if (bi->cur_ac >= 64)
break;
/* Construct the next VLC */
- prev= bi->cur_ac;
+ prev = bi->cur_ac;
bi->cur_ac = bi->next[prev];
- if(bi->cur_ac < 64){
+ if (bi->cur_ac < 64){
size = dv_rl2vlc(bi->cur_ac - prev - 1, bi->mb[bi->cur_ac], bi->sign[bi->cur_ac], &vlc);
} else {
size = 4; vlc = 6; /* End Of Block stamp */
return pb;
}
-static av_always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
- const uint8_t* zigzag_scan, const int *weight, int bias)
+static av_always_inline int dv_guess_dct_mode(DVVideoContext *s, uint8_t *data, int linesize) {
+ if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
+ int ps = s->ildct_cmp(NULL, data, NULL, linesize, 8) - 400;
+ if (ps > 0) {
+ int is = s->ildct_cmp(NULL, data , NULL, linesize<<1, 4) +
+ s->ildct_cmp(NULL, data + linesize, NULL, linesize<<1, 4);
+ return (ps > is);
+ }
+ }
+
+ return 0;
+}
+
+static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, int linesize, DVVideoContext *s, int bias)
{
+ const int *weight;
+ const uint8_t* zigzag_scan;
+ DECLARE_ALIGNED_16(DCTELEM, blk[64]);
int i, area;
/* We offer two different methods for class number assignment: the
method suggested in SMPTE 314M Table 22, and an improved
method. The SMPTE method is very conservative; it assigns class
3 (i.e. severe quantization) to any block where the largest AC
- component is greater than 36. ffmpeg's DV encoder tracks AC bit
+ component is greater than 36. FFmpeg's DV encoder tracks AC bit
consumption precisely, so there is no need to bias most blocks
towards strongly lossy compression. Instead, we assign class 2
to most blocks, and use class 3 only when strictly necessary
#if 0 /* SMPTE spec method */
static const int classes[] = {12, 24, 36, 0xffff};
-#else /* improved ffmpeg method */
+#else /* improved FFmpeg method */
static const int classes[] = {-1, -1, 255, 0xffff};
#endif
- int max=classes[0];
- int prev=0;
-
+ int max = classes[0];
+ int prev = 0;
+
+ assert((((int)blk) & 15) == 0);
+
+ bi->area_q[0] = bi->area_q[1] = bi->area_q[2] = bi->area_q[3] = 0;
+ bi->partial_bit_count = 0;
+ bi->partial_bit_buffer = 0;
+ bi->cur_ac = 0;
+ if (data) {
+ bi->dct_mode = dv_guess_dct_mode(s, data, linesize);
+ s->get_pixels(blk, data, linesize);
+ s->fdct[bi->dct_mode](blk);
+ } else {
+ /* We rely on the fact that encoding all zeros leads to an immediate EOB,
+ which is precisely what the spec calls for in the "dummy" blocks. */
+ memset(blk, 0, sizeof(blk));
+ bi->dct_mode = 0;
+ }
bi->mb[0] = blk[0];
+ zigzag_scan = bi->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct;
+ weight = bi->dct_mode ? dv_weight_248 : dv_weight_88;
+
for (area = 0; area < 4; area++) {
- bi->prev[area] = prev;
+ bi->prev[area] = prev;
bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :)
- for (i=mb_area_start[area]; i<mb_area_start[area+1]; i++) {
+ for (i = mb_area_start[area]; i < mb_area_start[area+1]; i++) {
int level = blk[zigzag_scan[i]];
- if (level+15 > 30U) {
- bi->sign[i] = (level>>31)&1;
+ if (level + 15 > 30U) {
+ bi->sign[i] = (level >> 31) & 1;
/* weigh it and and shift down into range, adding for rounding */
/* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT
AND the 2x doubling of the weights */
- level = (FFABS(level) * weight[i] + (1<<(dv_weight_bits+3))) >> (dv_weight_bits+4);
+ level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4);
bi->mb[i] = level;
- if(level>max) max= level;
+ if (level > max)
+ max = level;
bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, level);
bi->next[prev]= i;
- prev= i;
+ prev = i;
}
}
}
bi->next[prev]= i;
- for(bi->cno = 0; max > classes[bi->cno]; bi->cno++);
+ for (bi->cno = 0; max > classes[bi->cno]; bi->cno++);
bi->cno += bias;
if (bi->cno >= 3) {
bi->cno = 3;
- prev=0;
- i= bi->next[prev];
+ prev = 0;
+ i = bi->next[prev];
for (area = 0; area < 4; area++) {
- bi->prev[area] = prev;
+ bi->prev[area] = prev;
bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :)
- for (; i<mb_area_start[area+1]; i= bi->next[i]) {
- bi->mb[i] >>=1;
+ for (; i < mb_area_start[area+1]; i = bi->next[i]) {
+ bi->mb[i] >>= 1;
if (bi->mb[i]) {
bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]);
bi->next[prev]= i;
- prev= i;
+ prev = i;
}
}
}
bi->next[prev]= i;
}
-}
-//FIXME replace this by dsputil
-#define SC(x, y) ((s[x] - s[y]) ^ ((s[x] - s[y]) >> 7))
-static av_always_inline int dv_guess_dct_mode(DCTELEM *blk) {
- DCTELEM *s;
- int score88 = 0;
- int score248 = 0;
- int i;
-
- /* Compute 8-8 score (small values give a better chance for 8-8 DCT) */
- s = blk;
- for(i=0; i<7; i++) {
- score88 += SC(0, 8) + SC(1, 9) + SC(2, 10) + SC(3, 11) +
- SC(4, 12) + SC(5,13) + SC(6, 14) + SC(7, 15);
- s += 8;
- }
- /* Compute 2-4-8 score (small values give a better chance for 2-4-8 DCT) */
- s = blk;
- for(i=0; i<6; i++) {
- score248 += SC(0, 16) + SC(1,17) + SC(2, 18) + SC(3, 19) +
- SC(4, 20) + SC(5,21) + SC(6, 22) + SC(7, 23);
- s += 8;
- }
-
- return (score88 - score248 > -10);
+ return bi->bit_size[0] + bi->bit_size[1] + bi->bit_size[2] + bi->bit_size[3];
}
static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos)
int i, j, k, a, prev, a2;
EncBlockInfo* b;
- size[0] = size[1] = size[2] = size[3] = size[4] = 1<<24;
+ size[0] = size[1] = size[2] = size[3] = size[4] = 1 << 24;
do {
b = blks;
- for (i=0; i<5; i++) {
+ for (i = 0; i < 5; i++) {
if (!qnos[i])
continue;
qnos[i]--;
size[i] = 0;
- for (j=0; j<6; j++, b++) {
- for (a=0; a<4; a++) {
+ for (j = 0; j < 6; j++, b++) {
+ for (a = 0; a < 4; a++) {
if (b->area_q[a] != dv_quant_shifts[qnos[i] + dv_quant_offset[b->cno]][a]) {
b->bit_size[a] = 1; // 4 areas 4 bits for EOB :)
b->area_q[a]++;
- prev= b->prev[a];
+ prev = b->prev[a];
assert(b->next[prev] >= mb_area_start[a+1] || b->mb[prev]);
- for (k= b->next[prev] ; k<mb_area_start[a+1]; k= b->next[k]) {
+ for (k = b->next[prev] ; k < mb_area_start[a+1]; k = b->next[k]) {
b->mb[k] >>= 1;
if (b->mb[k]) {
b->bit_size[a] += dv_rl2vlc_size(k - prev - 1, b->mb[k]);
- prev= k;
+ prev = k;
} else {
- if(b->next[k] >= mb_area_start[a+1] && b->next[k]<64){
- for(a2=a+1; b->next[k] >= mb_area_start[a2+1]; a2++)
+ if (b->next[k] >= mb_area_start[a+1] && b->next[k]<64){
+ for (a2 = a + 1; b->next[k] >= mb_area_start[a2+1]; a2++)
b->prev[a2] = prev;
- assert(a2<4);
+ assert(a2 < 4);
assert(b->mb[b->next[k]]);
b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]])
-dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]);
- assert(b->prev[a2]==k && (a2+1 >= 4 || b->prev[a2+1]!=k));
+ assert(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2+1] != k));
b->prev[a2] = prev;
}
b->next[prev] = b->next[k];
size[i] += b->bit_size[a];
}
}
- if(vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4])
+ if (vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4])
return;
}
} while (qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4]);
- for(a=2; a==2 || vs_total_ac_bits < size[0]; a+=a){
+ for (a = 2; a == 2 || vs_total_ac_bits < size[0]; a += a){
b = blks;
- size[0] = 5*6*4; //EOB
- for (j=0; j<6*5; j++, b++) {
- prev= b->prev[0];
- for (k= b->next[prev]; k<64; k= b->next[k]) {
- if(b->mb[k] < a && b->mb[k] > -a){
+ size[0] = 5 * 6 * 4; //EOB
+ for (j = 0; j < 6 *5; j++, b++) {
+ prev = b->prev[0];
+ for (k = b->next[prev]; k < 64; k = b->next[k]) {
+ if (b->mb[k] < a && b->mb[k] > -a){
b->next[prev] = b->next[k];
}else{
size[0] += dv_rl2vlc_size(k - prev - 1, b->mb[k]);
- prev= k;
+ prev = k;
}
}
}
}
}
-static inline void dv_encode_video_segment(DVVideoContext *s,
- uint8_t *dif,
- const uint16_t *mb_pos_ptr)
+static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
{
- int mb_index, i, j, v;
- int mb_x, mb_y, c_offset, linesize;
+ DVVideoContext *s = avctx->priv_data;
+ DVwork_chunk *work_chunk = arg;
+ int mb_index, i, j;
+ int mb_x, mb_y, c_offset, linesize, y_stride;
uint8_t* y_ptr;
- uint8_t* data;
- uint8_t* ptr;
- int do_edge_wrap;
- DECLARE_ALIGNED_8(DCTELEM, block[64]);
- EncBlockInfo enc_blks[5*6];
- PutBitContext pbs[5*6];
+ uint8_t* dif;
+ uint8_t scratch[64];
+ EncBlockInfo enc_blks[5*DV_MAX_BPM];
+ PutBitContext pbs[5*DV_MAX_BPM];
PutBitContext* pb;
EncBlockInfo* enc_blk;
int vs_bit_size = 0;
- int qnos[5];
-
- assert((((int)block) & 7) == 0);
+ int qnos[5] = {15, 15, 15, 15, 15}; /* No quantization */
+ int* qnosp = &qnos[0];
+ dif = &s->buf[work_chunk->buf_offset*80];
enc_blk = &enc_blks[0];
- pb = &pbs[0];
- for(mb_index = 0; mb_index < 5; mb_index++) {
- v = *mb_pos_ptr++;
- mb_x = v & 0xff;
- mb_y = v >> 8;
- if (s->sys->pix_fmt == PIX_FMT_YUV422P) {
- y_ptr = s->picture.data[0] + (mb_y * s->picture.linesize[0] * 8) + (mb_x * 4);
- } else { /* 4:1:1 */
- y_ptr = s->picture.data[0] + (mb_y * s->picture.linesize[0] * 8) + (mb_x * 8);
+ for (mb_index = 0; mb_index < 5; mb_index++) {
+ dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);
+
+ /* initializing luminance blocks */
+ if ((s->sys->pix_fmt == PIX_FMT_YUV420P) ||
+ (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) ||
+ (s->sys->height >= 720 && mb_y != 134)) {
+ y_stride = s->picture.linesize[0] << 3;
+ } else {
+ y_stride = 16;
}
- if (s->sys->pix_fmt == PIX_FMT_YUV420P) {
- c_offset = (((mb_y >> 1) * s->picture.linesize[1] * 8) + ((mb_x >> 1) * 8));
- } else { /* 4:2:2 or 4:1:1 */
- c_offset = ((mb_y * s->picture.linesize[1] * 8) + ((mb_x >> 2) * 8));
+ y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << 3);
+ linesize = s->picture.linesize[0];
+
+ if (s->sys->video_stype == 4) { /* SD 422 */
+ vs_bit_size +=
+ dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) +
+ dv_init_enc_block(enc_blk+1, NULL , linesize, s, 0) +
+ dv_init_enc_block(enc_blk+2, y_ptr + 8 , linesize, s, 0) +
+ dv_init_enc_block(enc_blk+3, NULL , linesize, s, 0);
+ } else {
+ vs_bit_size +=
+ dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) +
+ dv_init_enc_block(enc_blk+1, y_ptr + 8 , linesize, s, 0) +
+ dv_init_enc_block(enc_blk+2, y_ptr + y_stride, linesize, s, 0) +
+ dv_init_enc_block(enc_blk+3, y_ptr + 8 + y_stride, linesize, s, 0);
}
- do_edge_wrap = 0;
- qnos[mb_index] = 15; /* No quantization */
- ptr = dif + mb_index*80 + 4;
- for(j = 0;j < 6; j++) {
- int dummy = 0;
- if (s->sys->pix_fmt == PIX_FMT_YUV422P) { /* 4:2:2 */
- if (j == 0 || j == 2) {
- /* Y0 Y1 */
- data = y_ptr + ((j>>1) * 8);
- linesize = s->picture.linesize[0];
- } else if (j > 3) {
- /* Cr Cb */
- data = s->picture.data[6 - j] + c_offset;
- linesize = s->picture.linesize[6 - j];
- } else {
- /* j=1 and j=3 are "dummy" blocks, used for AC data only */
- data = 0;
- linesize = 0;
- dummy = 1;
- }
- } else { /* 4:1:1 or 4:2:0 */
- if (j < 4) { /* Four Y blocks */
- /* NOTE: at end of line, the macroblock is handled as 420 */
- if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) {
- data = y_ptr + (j * 8);
- } else {
- data = y_ptr + ((j & 1) * 8) + ((j >> 1) * 8 * s->picture.linesize[0]);
- }
- linesize = s->picture.linesize[0];
- } else { /* Cr and Cb blocks */
- /* don't ask Fabrice why they inverted Cb and Cr ! */
- data = s->picture.data[6 - j] + c_offset;
- linesize = s->picture.linesize[6 - j];
- if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8))
- do_edge_wrap = 1;
- }
- }
-
- /* Everything is set up -- now just copy data -> DCT block */
- if (do_edge_wrap) { /* Edge wrap copy: 4x16 -> 8x8 */
+ enc_blk += 4;
+
+ /* initializing chrominance blocks */
+ c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] +
+ (mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << 3);
+ for (j = 2; j; j--) {
+ uint8_t *c_ptr = s->picture.data[j] + c_offset;
+ linesize = s->picture.linesize[j];
+ y_stride = (mb_y == 134) ? 8 : (s->picture.linesize[j] << 3);
+ if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
uint8_t* d;
- DCTELEM *b = block;
- for (i=0;i<8;i++) {
- d = data + 8 * linesize;
- b[0] = data[0]; b[1] = data[1]; b[2] = data[2]; b[3] = data[3];
- b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3];
- data += linesize;
- b += 8;
+ uint8_t* b = scratch;
+ for (i = 0; i < 8; i++) {
+ d = c_ptr + (linesize << 3);
+ b[0] = c_ptr[0]; b[1] = c_ptr[1]; b[2] = c_ptr[2]; b[3] = c_ptr[3];
+ b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3];
+ c_ptr += linesize;
+ b += 8;
}
- } else { /* Simple copy: 8x8 -> 8x8 */
- if (!dummy)
- s->get_pixels(block, data, linesize);
+ c_ptr = scratch;
+ linesize = 8;
}
- if(s->avctx->flags & CODEC_FLAG_INTERLACED_DCT)
- enc_blk->dct_mode = dv_guess_dct_mode(block);
- else
- enc_blk->dct_mode = 0;
- enc_blk->area_q[0] = enc_blk->area_q[1] = enc_blk->area_q[2] = enc_blk->area_q[3] = 0;
- enc_blk->partial_bit_count = 0;
- enc_blk->partial_bit_buffer = 0;
- enc_blk->cur_ac = 0;
-
- if (dummy) {
- /* We rely on the fact that encoding all zeros leads to an immediate EOB,
- which is precisely what the spec calls for in the "dummy" blocks. */
- memset(block, 0, sizeof(block));
- } else {
- s->fdct[enc_blk->dct_mode](block);
+ vs_bit_size += dv_init_enc_block( enc_blk++, c_ptr , linesize, s, 1);
+ if (s->sys->bpm == 8) {
+ vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr + y_stride, linesize, s, 1);
}
-
- dv_set_class_number(block, enc_blk,
- enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct,
- enc_blk->dct_mode ? dv_weight_248 : dv_weight_88,
- j/4);
-
- init_put_bits(pb, ptr, block_sizes[j]/8);
- put_bits(pb, 9, (uint16_t)(((enc_blk->mb[0] >> 3) - 1024 + 2) >> 2));
- put_bits(pb, 1, enc_blk->dct_mode);
- put_bits(pb, 2, enc_blk->cno);
-
- vs_bit_size += enc_blk->bit_size[0] + enc_blk->bit_size[1] +
- enc_blk->bit_size[2] + enc_blk->bit_size[3];
- ++enc_blk;
- ++pb;
- ptr += block_sizes[j]/8;
}
}
if (vs_total_ac_bits < vs_bit_size)
- dv_guess_qnos(&enc_blks[0], &qnos[0]);
+ dv_guess_qnos(&enc_blks[0], qnosp);
- for (i=0; i<5; i++) {
- dif[i*80 + 3] = qnos[i];
- }
+ /* DIF encoding process */
+ for (j=0; j<5*s->sys->bpm;) {
+ int start_mb = j;
- /* First pass over individual cells only */
- for (j=0; j<5*6; j++)
- dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]);
+ dif[3] = *qnosp++;
+ dif += 4;
+
+ /* First pass over individual cells only */
+ for (i=0; i<s->sys->bpm; i++, j++) {
+ int sz = s->sys->block_sizes[i]>>3;
+
+ init_put_bits(&pbs[j], dif, sz);
+ put_bits(&pbs[j], 9, (uint16_t)(((enc_blks[j].mb[0] >> 3) - 1024 + 2) >> 2));
+ put_bits(&pbs[j], 1, enc_blks[j].dct_mode);
+ put_bits(&pbs[j], 2, enc_blks[j].cno);
+
+ dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]);
+ dif += sz;
+ }
- /* Second pass over each MB space */
- for (j=0; j<5*6; j+=6) {
- pb= &pbs[j];
- for (i=0; i<6; i++) {
- if (enc_blks[i+j].partial_bit_count)
- pb=dv_encode_ac(&enc_blks[i+j], pb, &pbs[j+6]);
+ /* Second pass over each MB space */
+ pb = &pbs[start_mb];
+ for (i=0; i<s->sys->bpm; i++) {
+ if (enc_blks[start_mb+i].partial_bit_count)
+ pb = dv_encode_ac(&enc_blks[start_mb+i], pb, &pbs[start_mb+s->sys->bpm]);
}
}
- /* Third and final pass over the whole vides segment space */
- pb= &pbs[0];
- for (j=0; j<5*6; j++) {
+ /* Third and final pass over the whole video segment space */
+ pb = &pbs[0];
+ for (j=0; j<5*s->sys->bpm; j++) {
if (enc_blks[j].partial_bit_count)
- pb=dv_encode_ac(&enc_blks[j], pb, &pbs[6*5]);
+ pb = dv_encode_ac(&enc_blks[j], pb, &pbs[s->sys->bpm*5]);
if (enc_blks[j].partial_bit_count)
av_log(NULL, AV_LOG_ERROR, "ac bitstream overflow\n");
}
- for (j=0; j<5*6; j++)
+ for (j=0; j<5*s->sys->bpm; j++)
flush_put_bits(&pbs[j]);
-}
-
-static int dv_decode_mt(AVCodecContext *avctx, void* sl)
-{
- DVVideoContext *s = avctx->priv_data;
- int slice = (size_t)sl;
-
- /* which DIF channel is this? */
- int chan = slice / (s->sys->difseg_size * 27);
-
- /* slice within the DIF channel */
- int chan_slice = slice % (s->sys->difseg_size * 27);
- /* byte offset of this channel's data */
- int chan_offset = chan * s->sys->difseg_size * 150 * 80;
-
- dv_decode_video_segment(s, &s->buf[((chan_slice/27)*6+(chan_slice/3)+chan_slice*5+7)*80 + chan_offset],
- &s->sys->video_place[slice*5]);
- return 0;
-}
-
-#ifdef CONFIG_ENCODERS
-static int dv_encode_mt(AVCodecContext *avctx, void* sl)
-{
- DVVideoContext *s = avctx->priv_data;
- int slice = (size_t)sl;
-
- /* which DIF channel is this? */
- int chan = slice / (s->sys->difseg_size * 27);
-
- /* slice within the DIF channel */
- int chan_slice = slice % (s->sys->difseg_size * 27);
-
- /* byte offset of this channel's data */
- int chan_offset = chan * s->sys->difseg_size * 150 * 80;
-
- dv_encode_video_segment(s, &s->buf[((chan_slice/27)*6+(chan_slice/3)+chan_slice*5+7)*80 + chan_offset],
- &s->sys->video_place[slice*5]);
return 0;
}
-#endif
-#ifdef CONFIG_DECODERS
+#if CONFIG_DVVIDEO_DECODER
/* NOTE: exactly one frame must be given (120000 bytes for NTSC,
144000 bytes for PAL - or twice those for 50Mbps) */
static int dvvideo_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;
DVVideoContext *s = avctx->priv_data;
s->sys = dv_frame_profile(buf);
- if (!s->sys || buf_size < s->sys->frame_size)
+ if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys))
return -1; /* NOTE: we only accept several full frames */
- if(s->picture.data[0])
+ if (s->picture.data[0])
avctx->release_buffer(avctx, &s->picture);
s->picture.reference = 0;
s->picture.key_frame = 1;
s->picture.pict_type = FF_I_TYPE;
- avctx->pix_fmt = s->sys->pix_fmt;
+ avctx->pix_fmt = s->sys->pix_fmt;
+ avctx->time_base = s->sys->time_base;
avcodec_set_dimensions(avctx, s->sys->width, s->sys->height);
- if(avctx->get_buffer(avctx, &s->picture) < 0) {
+ if (avctx->get_buffer(avctx, &s->picture) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
s->picture.interlaced_frame = 1;
- s->picture.top_field_first = 0;
+ s->picture.top_field_first = 0;
s->buf = buf;
- avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL,
- s->sys->n_difchan * s->sys->difseg_size * 27);
+ avctx->execute(avctx, dv_decode_video_segment, s->sys->work_chunks, NULL,
+ dv_work_pool_size(s->sys), sizeof(DVwork_chunk));
emms_c();
/* return image */
*data_size = sizeof(AVFrame);
- *(AVFrame*)data= s->picture;
+ *(AVFrame*)data = s->picture;
return s->sys->frame_size;
}
-#endif
+#endif /* CONFIG_DVVIDEO_DECODER */
-static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c, uint8_t* buf)
+static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c,
+ uint8_t* buf)
{
/*
* Here's what SMPTE314M says about these two:
* 2. It is not at all clear what STYPE is used for 4:2:0 PAL
* compression scheme (if any).
*/
- int apt = (c->sys->pix_fmt == PIX_FMT_YUV420P ? 0 : 1);
- int stype = (c->sys->pix_fmt == PIX_FMT_YUV422P ? 4 : 0);
+ int apt = (c->sys->pix_fmt == PIX_FMT_YUV420P ? 0 : 1);
uint8_t aspect = 0;
- if((int)(av_q2d(c->avctx->sample_aspect_ratio) * c->avctx->width / c->avctx->height * 10) == 17) /* 16:9 */
+ if ((int)(av_q2d(c->avctx->sample_aspect_ratio) * c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */
aspect = 0x02;
buf[0] = (uint8_t)pack_id;
switch (pack_id) {
case dv_header525: /* I can't imagine why these two weren't defined as real */
case dv_header625: /* packs in SMPTE314M -- they definitely look like ones */
- buf[1] = 0xf8 | /* reserved -- always 1 */
- (apt & 0x07); /* APT: Track application ID */
- buf[2] = (0 << 7) | /* TF1: audio data is 0 - valid; 1 - invalid */
+ buf[1] = 0xf8 | /* reserved -- always 1 */
+ (apt & 0x07); /* APT: Track application ID */
+ buf[2] = (0 << 7) | /* TF1: audio data is 0 - valid; 1 - invalid */
(0x0f << 3) | /* reserved -- always 1 */
(apt & 0x07); /* AP1: Audio application ID */
- buf[3] = (0 << 7) | /* TF2: video data is 0 - valid; 1 - invalid */
+ buf[3] = (0 << 7) | /* TF2: video data is 0 - valid; 1 - invalid */
(0x0f << 3) | /* reserved -- always 1 */
(apt & 0x07); /* AP2: Video application ID */
- buf[4] = (0 << 7) | /* TF3: subcode(SSYB) is 0 - valid; 1 - invalid */
+ buf[4] = (0 << 7) | /* TF3: subcode(SSYB) is 0 - valid; 1 - invalid */
(0x0f << 3) | /* reserved -- always 1 */
(apt & 0x07); /* AP3: Subcode application ID */
break;
case dv_video_source:
- buf[1] = 0xff; /* reserved -- always 1 */
+ buf[1] = 0xff; /* reserved -- always 1 */
buf[2] = (1 << 7) | /* B/W: 0 - b/w, 1 - color */
(1 << 6) | /* following CLF is valid - 0, invalid - 1 */
- (3 << 4) | /* CLF: color frames id (see ITU-R BT.470-4) */
- 0xf; /* reserved -- always 1 */
+ (3 << 4) | /* CLF: color frames ID (see ITU-R BT.470-4) */
+ 0xf; /* reserved -- always 1 */
buf[3] = (3 << 6) | /* reserved -- always 1 */
(c->sys->dsf << 5) | /* system: 60fields/50fields */
- stype; /* signal type video compression */
- buf[4] = 0xff; /* VISC: 0xff -- no information */
+ c->sys->video_stype; /* signal type video compression */
+ buf[4] = 0xff; /* VISC: 0xff -- no information */
break;
case dv_video_control:
buf[1] = (0 << 6) | /* Copy generation management (CGMS) 0 -- free */
- 0x3f; /* reserved -- always 1 */
- buf[2] = 0xc8 | /* reserved -- always b11001xxx */
+ 0x3f; /* reserved -- always 1 */
+ buf[2] = 0xc8 | /* reserved -- always b11001xxx */
aspect;
- buf[3] = (1 << 7) | /* Frame/field flag 1 -- frame, 0 -- field */
- (1 << 6) | /* First/second field flag 0 -- field 2, 1 -- field 1 */
- (1 << 5) | /* Frame change flag 0 -- same picture as before, 1 -- different */
+ buf[3] = (1 << 7) | /* frame/field flag 1 -- frame, 0 -- field */
+ (1 << 6) | /* first/second field flag 0 -- field 2, 1 -- field 1 */
+ (1 << 5) | /* frame change flag 0 -- same picture as before, 1 -- different */
(1 << 4) | /* 1 - interlaced, 0 - noninterlaced */
- 0xc; /* reserved -- always b1100 */
- buf[4] = 0xff; /* reserved -- always 1 */
+ 0xc; /* reserved -- always b1100 */
+ buf[4] = 0xff; /* reserved -- always 1 */
break;
default:
buf[1] = buf[2] = buf[3] = buf[4] = 0xff;
return 5;
}
+#if CONFIG_DVVIDEO_ENCODER
static void dv_format_frame(DVVideoContext* c, uint8_t* buf)
{
int chan, i, j, k;
for (chan = 0; chan < c->sys->n_difchan; chan++) {
for (i = 0; i < c->sys->difseg_size; i++) {
- memset(buf, 0xff, 80 * 6); /* First 6 DIF blocks are for control data */
+ memset(buf, 0xff, 80 * 6); /* first 6 DIF blocks are for control data */
/* DV header: 1DIF */
buf += dv_write_dif_id(dv_sect_header, chan, i, 0, buf);
buf += 77; /* audio control & shuffled PCM audio */
}
buf += dv_write_dif_id(dv_sect_video, chan, i, j, buf);
- buf += 77; /* 1 video macro block: 1 bytes control
+ buf += 77; /* 1 video macroblock: 1 bytes control
4 * 14 bytes Y 8x8 data
10 bytes Cr 8x8 data
10 bytes Cb 8x8 data */
}
-#ifdef CONFIG_ENCODERS
static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size,
void *data)
{
DVVideoContext *s = c->priv_data;
s->sys = dv_codec_profile(c);
- if (!s->sys)
- return -1;
- if(buf_size < s->sys->frame_size)
+ if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys))
return -1;
- c->pix_fmt = s->sys->pix_fmt;
- s->picture = *((AVFrame *)data);
+ c->pix_fmt = s->sys->pix_fmt;
+ s->picture = *((AVFrame *)data);
s->picture.key_frame = 1;
s->picture.pict_type = FF_I_TYPE;
s->buf = buf;
- c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL,
- s->sys->n_difchan * s->sys->difseg_size * 27);
+ c->execute(c, dv_encode_video_segment, s->sys->work_chunks, NULL,
+ dv_work_pool_size(s->sys), sizeof(DVwork_chunk));
emms_c();
{
DVVideoContext *s = c->priv_data;
- if(s->picture.data[0])
+ if (s->picture.data[0])
c->release_buffer(c, &s->picture);
return 0;
}
-#ifdef CONFIG_DVVIDEO_ENCODER
+#if CONFIG_DVVIDEO_ENCODER
AVCodec dvvideo_encoder = {
"dvvideo",
CODEC_TYPE_VIDEO,
sizeof(DVVideoContext),
dvvideo_init,
dvvideo_encode_frame,
- .pix_fmts = (enum PixelFormat[]) {PIX_FMT_YUV411P, PIX_FMT_YUV422P, PIX_FMT_YUV420P, -1},
+ .pix_fmts = (enum PixelFormat[]) {PIX_FMT_YUV411P, PIX_FMT_YUV422P, PIX_FMT_YUV420P, PIX_FMT_NONE},
+ .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
};
#endif // CONFIG_DVVIDEO_ENCODER
-#ifdef CONFIG_DVVIDEO_DECODER
+#if CONFIG_DVVIDEO_DECODER
AVCodec dvvideo_decoder = {
"dvvideo",
CODEC_TYPE_VIDEO,
dvvideo_close,
dvvideo_decode_frame,
CODEC_CAP_DR1,
- NULL
+ NULL,
+ .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
};
#endif
projects / frescor / ffmpeg.git / blobdiff