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Diffstat (limited to 'src/libffmpeg/libavcodec/dv.c')
-rw-r--r--src/libffmpeg/libavcodec/dv.c520
1 files changed, 263 insertions, 257 deletions
diff --git a/src/libffmpeg/libavcodec/dv.c b/src/libffmpeg/libavcodec/dv.c
index 09fb77299..08611a900 100644
--- a/src/libffmpeg/libavcodec/dv.c
+++ b/src/libffmpeg/libavcodec/dv.c
@@ -3,7 +3,7 @@
* Copyright (c) 2002 Fabrice Bellard.
* Copyright (c) 2004 Roman Shaposhnik.
*
- * DV encoder
+ * DV encoder
* Copyright (c) 2003 Roman Shaposhnik.
*
* Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth
@@ -21,7 +21,7 @@
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
@@ -42,28 +42,28 @@ typedef struct DVVideoContext {
AVFrame picture;
AVCodecContext *avctx;
uint8_t *buf;
-
+
uint8_t dv_zigzag[2][64];
uint8_t dv_idct_shift[2][2][22][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);
} DVVideoContext;
+/* MultiThreading - applies to entire DV codec, not just the avcontext */
+uint8_t** dv_anchor;
+
#define TEX_VLC_BITS 9
#ifdef DV_CODEC_TINY_TARGET
#define DV_VLC_MAP_RUN_SIZE 15
#define DV_VLC_MAP_LEV_SIZE 23
#else
-#define DV_VLC_MAP_RUN_SIZE 64
+#define DV_VLC_MAP_RUN_SIZE 64
#define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check
#endif
-/* MultiThreading */
-static uint8_t** dv_anchor;
-
/* XXX: also include quantization */
static RL_VLC_ELEM *dv_rl_vlc;
/* VLC encoding lookup table */
@@ -84,15 +84,15 @@ static void dv_build_unquantize_tables(DVVideoContext *s, uint8_t* perm)
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;
+ s->dv_idct_shift[1][0][q][j] = s->dv_idct_shift[0][0][q][j] + 1;
}
-
+
/* 248DCT */
for(i = 1; i < 64; i++) {
/* 248 table */
- s->dv_idct_shift[0][1][q][i] =
+ 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;
+ s->dv_idct_shift[1][1][q][i] = s->dv_idct_shift[0][1][q][i] + 1;
}
}
}
@@ -114,51 +114,50 @@ static int dvvideo_init(AVCodecContext *avctx)
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 */
- dv_anchor = av_malloc(12*27*sizeof(void*));
- if (!dv_anchor) {
- return -ENOMEM;
- }
- for (i=0; i<12*27; 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];
- new_dv_vlc_level[j] = dv_vlc_level[i];
-
- if (dv_vlc_level[i]) {
- new_dv_vlc_bits[j] <<= 1;
- 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_level[j] = -dv_vlc_level[i];
- }
- }
-
+ if (!dv_vlc_map)
+ return -ENOMEM;
+
+ /* dv_anchor lets each thread know its Id */
+ dv_anchor = av_malloc(12*27*sizeof(void*));
+ if (!dv_anchor) {
+ return -ENOMEM;
+ }
+ for (i=0; i<12*27; 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];
+ new_dv_vlc_level[j] = dv_vlc_level[i];
+
+ if (dv_vlc_level[i]) {
+ new_dv_vlc_bits[j] <<= 1;
+ 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_level[j] = -dv_vlc_level[i];
+ }
+ }
+
/* NOTE: as a trick, we use the fact the no codes are unused
to accelerate the parsing of partial codes */
- init_vlc(&dv_vlc, TEX_VLC_BITS, j,
+ init_vlc(&dv_vlc, TEX_VLC_BITS, j,
new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0);
- dv_rl_vlc = av_malloc(dv_vlc.table_size * sizeof(RL_VLC_ELEM));
- if (!dv_rl_vlc) {
- av_free(dv_anchor);
- return -ENOMEM;
- }
+ 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];
int level, run;
-
+
if(len<0){ //more bits needed
run= 0;
level= code;
@@ -170,49 +169,49 @@ static int dvvideo_init(AVCodecContext *avctx)
dv_rl_vlc[i].level = level;
dv_rl_vlc[i].run = run;
}
- free_vlc(&dv_vlc);
+ free_vlc(&dv_vlc);
- for (i = 0; i < NB_DV_VLC - 1; i++) {
+ for (i = 0; i < NB_DV_VLC - 1; i++) {
if (dv_vlc_run[i] >= DV_VLC_MAP_RUN_SIZE)
- continue;
+ continue;
#ifdef DV_CODEC_TINY_TARGET
if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE)
- continue;
+ 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]);
- }
- for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) {
+
+ 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]);
+ }
+ for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) {
#ifdef DV_CODEC_TINY_TARGET
- 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 |
- (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
- dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
- dv_vlc_map[0][j].size;
- }
- }
+ 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 |
+ (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
+ dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
+ dv_vlc_map[0][j].size;
+ }
+ }
#else
- for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) {
- if (dv_vlc_map[i][j].size == 0) {
- dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
- (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
- dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
- dv_vlc_map[0][j].size;
- }
- dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc =
- dv_vlc_map[i][j].vlc | 1;
- dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size =
- dv_vlc_map[i][j].size;
- }
+ for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) {
+ if (dv_vlc_map[i][j].size == 0) {
+ dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
+ (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
+ dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
+ dv_vlc_map[0][j].size;
+ }
+ dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc =
+ dv_vlc_map[i][j].vlc | 1;
+ dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size =
+ dv_vlc_map[i][j].size;
+ }
#endif
- }
+ }
}
/* Generic DSP setup */
@@ -241,10 +240,10 @@ static int dvvideo_init(AVCodecContext *avctx)
/* FIXME: I really don't think this should be here */
if (dv_codec_profile(avctx))
- avctx->pix_fmt = dv_codec_profile(avctx)->pix_fmt;
+ avctx->pix_fmt = dv_codec_profile(avctx)->pix_fmt;
avctx->coded_frame = &s->picture;
s->avctx= avctx;
-
+
return 0;
}
@@ -268,7 +267,7 @@ static const uint16_t block_sizes[6] = {
/* 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 */
-static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
+static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
#ifndef ALT_BITSTREAM_READER
#warning only works with ALT_BITSTREAM_READER
@@ -299,16 +298,16 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
int pos = mb->pos;
int partial_bit_count = mb->partial_bit_count;
int level, pos1, 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));
- re_index -= partial_bit_count;
- mb->partial_bit_count = 0;
+ (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 */
@@ -318,31 +317,31 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
#endif
/* our own optimized GET_RL_VLC */
index = NEG_USR32(re_cache, TEX_VLC_BITS);
- vlc_len = dv_rl_vlc[index].len;
+ 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;
-
- /* gotta check if we're still within gb boundaries */
- if (re_index + vlc_len > last_index) {
- /* should be < 16 bits otherwise a codeword could have been parsed */
- mb->partial_bit_count = last_index - re_index;
- mb->partial_bit_buffer = NEG_USR32(re_cache, mb->partial_bit_count);
- re_index = last_index;
- break;
- }
- re_index += vlc_len;
+ run = dv_rl_vlc[index].run;
+
+ /* gotta check if we're still within gb boundaries */
+ if (re_index + vlc_len > last_index) {
+ /* should be < 16 bits otherwise a codeword could have been parsed */
+ mb->partial_bit_count = last_index - re_index;
+ mb->partial_bit_buffer = NEG_USR32(re_cache, mb->partial_bit_count);
+ re_index = last_index;
+ break;
+ }
+ re_index += vlc_len;
#ifdef VLC_DEBUG
- printf("run=%d level=%d\n", run, level);
+ printf("run=%d level=%d\n", run, level);
#endif
- pos += run;
- if (pos >= 64)
- break;
-
+ pos += run;
+ if (pos >= 64)
+ break;
+
assert(level);
pos1 = scan_table[pos];
block[pos1] = level << shift_table[pos1];
@@ -366,8 +365,8 @@ static inline void bit_copy(PutBitContext *pb, GetBitContext *gb)
}
/* mb_x and mb_y are in units of 8 pixels */
-static inline void dv_decode_video_segment(DVVideoContext *s,
- uint8_t *buf_ptr1,
+static inline void dv_decode_video_segment(DVVideoContext *s,
+ uint8_t *buf_ptr1,
const uint16_t *mb_pos_ptr)
{
int quant, dc, dct_mode, class1, j;
@@ -380,14 +379,14 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
PutBitContext pb, vs_pb;
GetBitContext gb;
BlockInfo mb_data[5 * 6], *mb, *mb1;
- DCTELEM sblock[5*6][64] __align8;
- uint8_t mb_bit_buffer[80 + 4] __align8; /* allow some slack */
- uint8_t vs_bit_buffer[5 * 80 + 4] __align8; /* allow some slack */
+ DECLARE_ALIGNED_8(DCTELEM, sblock[5*6][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;
-
+
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 */
@@ -404,8 +403,8 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
block = block1;
for(j = 0;j < 6; j++) {
last_index = block_sizes[j];
- init_get_bits(&gb, buf_ptr, last_index);
-
+ init_get_bits(&gb, buf_ptr, last_index);
+
/* get the dc */
dc = get_sbits(&gb, 9);
dct_mode = get_bits1(&gb);
@@ -432,11 +431,11 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
block is finished */
if (mb->pos >= 64)
bit_copy(&pb, &gb);
-
+
block += 64;
mb++;
}
-
+
/* pass 2 : we can do it just after */
#ifdef VLC_DEBUG
printf("***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index);
@@ -444,7 +443,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
block = block1;
mb = mb1;
init_get_bits(&gb, mb_bit_buffer, put_bits_count(&pb));
- flush_put_bits(&pb);
+ flush_put_bits(&pb);
for(j = 0;j < 6; j++, block += 64, mb++) {
if (mb->pos < 64 && get_bits_left(&gb) > 0) {
dv_decode_ac(&gb, mb, block);
@@ -456,7 +455,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
/* all blocks are finished, so the extra bytes can be used at
the video segment level */
if (j >= 6)
- bit_copy(&vs_pb, &gb);
+ bit_copy(&vs_pb, &gb);
}
/* we need a pass other the whole video segment */
@@ -475,13 +474,13 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
#endif
dv_decode_ac(&gb, mb, block);
}
- if (mb->pos >= 64 && mb->pos < 127)
- av_log(NULL, AV_LOG_ERROR, "AC EOB marker is absent pos=%d\n", mb->pos);
+ if (mb->pos >= 64 && mb->pos < 127)
+ av_log(NULL, AV_LOG_ERROR, "AC EOB marker is absent pos=%d\n", mb->pos);
block += 64;
mb++;
}
}
-
+
/* compute idct and place blocks */
block = &sblock[0][0];
mb = mb_data;
@@ -508,7 +507,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
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;
+ 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);
@@ -526,7 +525,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s,
}
} else {
/* don't ask me why they inverted Cb and Cr ! */
- idct_put(s->picture.data[6 - j] + c_offset,
+ idct_put(s->picture.data[6 - j] + c_offset,
s->picture.linesize[6 - j], block);
}
}
@@ -543,38 +542,38 @@ static always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc)
int size;
if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) {
*vlc = dv_vlc_map[run][level].vlc | sign;
- size = dv_vlc_map[run][level].size;
+ size = dv_vlc_map[run][level].size;
}
- else {
+ else {
if (level < DV_VLC_MAP_LEV_SIZE) {
- *vlc = dv_vlc_map[0][level].vlc | sign;
- size = dv_vlc_map[0][level].size;
- } else {
+ *vlc = dv_vlc_map[0][level].vlc | sign;
+ size = dv_vlc_map[0][level].size;
+ } else {
*vlc = 0xfe00 | (level << 1) | sign;
- size = 16;
- }
- 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 = 16;
+ }
+ 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;
+ }
}
-
+
return size;
}
static always_inline int dv_rl2vlc_size(int run, int level)
{
int size;
-
+
if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) {
- size = dv_vlc_map[run][level].size;
+ size = dv_vlc_map[run][level].size;
}
- else {
- size = (level < DV_VLC_MAP_LEV_SIZE) ? dv_vlc_map[0][level].size : 16;
- if (run) {
- size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
- }
+ else {
+ size = (level < DV_VLC_MAP_LEV_SIZE) ? dv_vlc_map[0][level].size : 16;
+ if (run) {
+ size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
+ }
}
return size;
}
@@ -605,7 +604,7 @@ typedef struct EncBlockInfo {
uint32_t partial_bit_buffer; /* we can't use uint16_t here */
} EncBlockInfo;
-static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool,
+static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool,
PutBitContext* pb_end)
{
int prev;
@@ -620,22 +619,22 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext
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);
- }
- if (pb + 1 >= pb_end) {
- bi->partial_bit_count = size;
- bi->partial_bit_buffer = vlc;
- return pb;
- }
+ put_bits(pb, bits_left, vlc >> size);
+ vlc = vlc & ((1<<size)-1);
+ }
+ if (pb + 1 >= pb_end) {
+ bi->partial_bit_count = size;
+ bi->partial_bit_buffer = vlc;
+ return pb;
+ }
}
-
+
/* Store VLC */
put_bits(pb, size, vlc);
-
+
if(bi->cur_ac>=64)
break;
-
+
/* Construct the next VLC */
prev= bi->cur_ac;
bi->cur_ac = bi->next[prev];
@@ -648,7 +647,7 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext
return pb;
}
-static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
+static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
const uint8_t* zigzag_scan, int bias)
{
int i, area;
@@ -656,14 +655,14 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
int max=12;
int prev=0;
- bi->mb[0] = blk[0];
-
+ bi->mb[0] = blk[0];
+
for (area = 0; area < 4; area++) {
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++) {
int level = blk[zigzag_scan[i]];
-
+
if (level+15 > 30U) {
bi->sign[i] = (level>>31)&1;
bi->mb[i] = level= ABS(level)>>4;
@@ -678,7 +677,7 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
for(bi->cno = 0; max > classes[bi->cno]; bi->cno++);
bi->cno += bias;
-
+
if (bi->cno >= 3) {
bi->cno = 3;
prev=0;
@@ -688,7 +687,7 @@ static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi,
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;
-
+
if (bi->mb[i]) {
bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]);
bi->next[prev]= i;
@@ -707,19 +706,19 @@ static always_inline int dv_guess_dct_mode(DCTELEM *blk) {
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);
+ 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);
+ SC(4, 20) + SC(5,21) + SC(6, 22) + SC(7, 23);
s += 8;
}
@@ -736,60 +735,60 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos)
b = blks;
for (i=0; i<5; i++) {
if (!qnos[i])
- continue;
-
- qnos[i]--;
- size[i] = 0;
+ continue;
+
+ qnos[i]--;
+ size[i] = 0;
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]++;
+ 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];
for (k= b->next[prev] ; k<mb_area_start[a+1]; k= b->next[k]) {
- b->mb[k] >>= 1;
- if (b->mb[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 {
b->next[prev] = b->next[k];
}
- }
+ }
b->prev[a+1]= prev;
- }
- size[i] += b->bit_size[a];
- }
- }
+ }
+ size[i] += b->bit_size[a];
+ }
+ }
}
- } while ((vs_total_ac_bits < size[0] + size[1] + size[2] + size[3] + size[4]) &&
+ } while ((vs_total_ac_bits < size[0] + size[1] + size[2] + size[3] + size[4]) &&
(qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4]));
}
/*
* This is a very rough initial implementaion. The performance is
- * horrible and the weighting is missing. But it's missing from the
+ * horrible and the weighting is missing. But it's missing from the
* decoding step also -- so at least we're on the same page with decoder ;-)
*/
-static inline void dv_encode_video_segment(DVVideoContext *s,
- uint8_t *dif,
+static inline void dv_encode_video_segment(DVVideoContext *s,
+ uint8_t *dif,
const uint16_t *mb_pos_ptr)
{
int mb_index, i, j, v;
- int mb_x, mb_y, c_offset, linesize;
+ int mb_x, mb_y, c_offset, linesize;
uint8_t* y_ptr;
uint8_t* data;
uint8_t* ptr;
int do_edge_wrap;
- DCTELEM block[64] __align8;
+ DECLARE_ALIGNED_8(DCTELEM, block[64]);
EncBlockInfo enc_blks[5*6];
PutBitContext pbs[5*6];
- PutBitContext* pb;
+ PutBitContext* pb;
EncBlockInfo* enc_blk;
int vs_bit_size = 0;
int qnos[5];
-
+
assert((((int)block) & 7) == 0);
-
+
enc_blk = &enc_blks[0];
pb = &pbs[0];
for(mb_index = 0; mb_index < 5; mb_index++) {
@@ -797,68 +796,68 @@ static inline void dv_encode_video_segment(DVVideoContext *s,
mb_x = v & 0xff;
mb_y = v >> 8;
y_ptr = s->picture.data[0] + (mb_y * s->picture.linesize[0] * 8) + (mb_x * 8);
- c_offset = (s->sys->pix_fmt == PIX_FMT_YUV411P) ?
- ((mb_y * s->picture.linesize[1] * 8) + ((mb_x >> 2) * 8)) :
- (((mb_y >> 1) * s->picture.linesize[1] * 8) + ((mb_x >> 1) * 8));
- do_edge_wrap = 0;
- qnos[mb_index] = 15; /* No quantization */
+ c_offset = (s->sys->pix_fmt == PIX_FMT_YUV411P) ?
+ ((mb_y * s->picture.linesize[1] * 8) + ((mb_x >> 2) * 8)) :
+ (((mb_y >> 1) * s->picture.linesize[1] * 8) + ((mb_x >> 1) * 8));
+ do_edge_wrap = 0;
+ qnos[mb_index] = 15; /* No quantization */
ptr = dif + mb_index*80 + 4;
for(j = 0;j < 6; j++) {
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)) {
+ /* 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];
+ 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 */
- 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];
+ /* 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 */
+ 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;
- }
- } else { /* Simple copy: 8x8 -> 8x8 */
- s->get_pixels(block, data, linesize);
- }
-
+ data += linesize;
+ b += 8;
+ }
+ } else { /* Simple copy: 8x8 -> 8x8 */
+ s->get_pixels(block, data, linesize);
+ }
+
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;
-
- s->fdct[enc_blk->dct_mode](block);
-
- dv_set_class_number(block, enc_blk,
- enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct, j/4);
-
+ 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;
+
+ s->fdct[enc_blk->dct_mode](block);
+
+ dv_set_class_number(block, enc_blk,
+ enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct, 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;
+ 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;
}
}
@@ -898,7 +897,7 @@ static int dv_decode_mt(AVCodecContext *avctx, void* sl)
DVVideoContext *s = avctx->priv_data;
int slice = (size_t)sl;
dv_decode_video_segment(s, &s->buf[((slice/27)*6+(slice/3)+slice*5+7)*80],
- &s->sys->video_place[slice*5]);
+ &s->sys->video_place[slice*5]);
return 0;
}
@@ -907,25 +906,25 @@ static int dv_encode_mt(AVCodecContext *avctx, void* sl)
DVVideoContext *s = avctx->priv_data;
int slice = (size_t)sl;
dv_encode_video_segment(s, &s->buf[((slice/27)*6+(slice/3)+slice*5+7)*80],
- &s->sys->video_place[slice*5]);
+ &s->sys->video_place[slice*5]);
return 0;
}
/* NOTE: exactly one frame must be given (120000 bytes for NTSC,
144000 bytes for PAL) */
-static int dvvideo_decode_frame(AVCodecContext *avctx,
+static int dvvideo_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
DVVideoContext *s = avctx->priv_data;
-
+
s->sys = dv_frame_profile(buf);
if (!s->sys || buf_size < s->sys->frame_size)
return -1; /* NOTE: we only accept several full frames */
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;
@@ -939,26 +938,26 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
s->picture.top_field_first = 0;
s->buf = buf;
- avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL,
- s->sys->difseg_size * 27);
-
+ avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL,
+ s->sys->difseg_size * 27);
+
emms_c();
/* return image */
*data_size = sizeof(AVFrame);
*(AVFrame*)data= s->picture;
-
+
return s->sys->frame_size;
}
-static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size,
+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;
+ return -1;
if(buf_size < s->sys->frame_size)
return -1;
@@ -968,13 +967,20 @@ static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size,
s->picture.pict_type = FF_I_TYPE;
s->buf = buf;
- c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL,
- s->sys->difseg_size * 27);
+ c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL,
+ s->sys->difseg_size * 27);
emms_c();
return s->sys->frame_size;
}
+static int dvvideo_close(AVCodecContext *c)
+{
+
+ return 0;
+}
+
+
#ifdef CONFIG_DVVIDEO_ENCODER
AVCodec dvvideo_encoder = {
"dvvideo",
@@ -983,7 +989,7 @@ AVCodec dvvideo_encoder = {
sizeof(DVVideoContext),
dvvideo_init,
dvvideo_encode_frame,
- NULL,
+ dvvideo_close,
NULL,
CODEC_CAP_DR1,
NULL
@@ -997,7 +1003,7 @@ AVCodec dvvideo_decoder = {
sizeof(DVVideoContext),
dvvideo_init,
NULL,
- NULL,
+ dvvideo_close,
dvvideo_decode_frame,
CODEC_CAP_DR1,
NULL
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 21:22:21 +0000