#define MAX_REFERENCE_FRAMES 8
#define MAX_DELAY 5 /* limit for main profile for frame coding (TODO: field coding) */
#define MAX_FRAMES (MAX_REFERENCE_FRAMES + MAX_DELAY + 1)
-#define MAX_QUANT 68 /* max quant for VC-2 */
+#define MAX_QUANT 255 /* max quant for VC-2 */
#define MAX_BLOCKSIZE 32 /* maximum xblen/yblen we support */
/**
typedef struct SubBand {
int level;
int orientation;
- int stride;
+ int stride; /* in bytes */
int width;
int height;
+ int pshift;
int quant;
- IDWTELEM *ibuf;
+ uint8_t *ibuf;
struct SubBand *parent;
/* for low delay */
int idwt_width;
int idwt_height;
int idwt_stride;
- IDWTELEM *idwt_buf;
- IDWTELEM *idwt_buf_base;
- IDWTELEM *idwt_tmp;
+ uint8_t *idwt_buf;
+ uint8_t *idwt_buf_base;
+ uint8_t *idwt_tmp;
/* block length */
uint8_t xblen;
MpegvideoEncDSPContext mpvencdsp;
VideoDSPContext vdsp;
DiracDSPContext diracdsp;
+ DiracVersionInfo version;
GetBitContext gb;
- dirac_source_params source;
+ AVDiracSeqHeader seq;
int seen_sequence_header;
int frame_number; /* number of the next frame to display */
Plane plane[3];
int chroma_x_shift;
int chroma_y_shift;
+ int bit_depth; /* bit depth */
+ int pshift; /* pixel shift = bit_depth > 8 */
+
int zero_res; /* zero residue flag */
int is_arith; /* whether coeffs use arith or golomb coding */
+ int core_syntax; /* use core syntax only */
int low_delay; /* use the low delay syntax */
+ int hq_picture; /* high quality picture, enables low_delay */
+ int ld_picture; /* use low delay picture, turns on low_delay */
+ int dc_prediction; /* has dc prediction */
int globalmc_flag; /* use global motion compensation */
int num_refs; /* number of reference pictures */
unsigned old_delta_quant;
unsigned codeblock_mode;
+ unsigned num_x; /* number of horizontal slices */
+ unsigned num_y; /* number of vertical slices */
+
struct {
unsigned width;
unsigned height;
} codeblock[MAX_DWT_LEVELS+1];
struct {
- unsigned num_x; /* number of horizontal slices */
- unsigned num_y; /* number of vertical slices */
AVRational bytes; /* average bytes per slice */
uint8_t quant[MAX_DWT_LEVELS][4]; /* [DIRAC_STD] E.1 */
} lowdelay;
+ struct {
+ unsigned prefix_bytes;
+ unsigned size_scaler;
+ } highquality;
+
struct {
int pan_tilt[2]; /* pan/tilt vector */
int zrs[2][2]; /* zoom/rotate/shear matrix */
DiracFrame all_frames[MAX_FRAMES];
} DiracContext;
-/**
- * Dirac Specification ->
- * Parse code values. 9.6.1 Table 9.1
- */
-enum dirac_parse_code {
- pc_seq_header = 0x00,
- pc_eos = 0x10,
- pc_aux_data = 0x20,
- pc_padding = 0x30,
-};
-
enum dirac_subband {
subband_ll = 0,
subband_hl = 1,
{ { 3, 1, 1, 0}, { 0, 4, 4, 2}, { 0, 6, 6, 5}, { 0, 9, 9, 7} },
};
-static const int qscale_tab[MAX_QUANT+1] = {
- 4, 5, 6, 7, 8, 10, 11, 13,
- 16, 19, 23, 27, 32, 38, 45, 54,
- 64, 76, 91, 108, 128, 152, 181, 215,
- 256, 304, 362, 431, 512, 609, 724, 861,
- 1024, 1218, 1448, 1722, 2048, 2435, 2896, 3444,
- 4096, 4871, 5793, 6889, 8192, 9742, 11585, 13777,
- 16384, 19484, 23170, 27554, 32768, 38968, 46341, 55109,
- 65536, 77936
+static const int32_t qscale_tab[128] = {
+ 4, 5, 6, 7, 8, 10, 11, 13,
+ 16, 19, 23, 27, 32, 38, 45, 54,
+ 64, 76, 91, 108, 128, 152, 181, 215,
+ 256, 304, 362, 431, 512, 609, 724, 861,
+ 1024, 1218, 1448, 1722, 2048, 2435, 2896, 3444,
+ 4096, 4871, 5793, 6889, 8192, 9742, 11585, 13777,
+ 16384, 19484, -13317, 27554, 32768, -1581, 9853, -10518,
+ 65536, -3164, -16782, -21037, 131072, -6328, 2922, 23552,
+ 262144, -12658, 5844, -18524, 524288, 15232, 11689, 28578,
+ 1048576, -10085, -13110, -8471, 2097152, -20170, 10267, -16943,
+ 4194304, 208, -15954, 31741, 8388608, 416, 4579, -2146,
+ 16777216, 832, 9158, -4293, 33554432, 1663, -18172, -8587,
+ 67108864, 3326, 143, -17175, 134217728, 6653, 285, 31276,
+268435456, 13306, 570, -3075, 536870912, -13938, 1140, -6152,
+1073741824, 12672, 2281, -12304, -2147483648, -15205, 4561, -24610,
+ 0, 10138, 9122, 16407, 0, -20274, -18243, -32813,
};
-static const int qoffset_intra_tab[MAX_QUANT+1] = {
- 1, 2, 3, 4, 4, 5, 6, 7,
- 8, 10, 12, 14, 16, 19, 23, 27,
- 32, 38, 46, 54, 64, 76, 91, 108,
- 128, 152, 181, 216, 256, 305, 362, 431,
- 512, 609, 724, 861, 1024, 1218, 1448, 1722,
- 2048, 2436, 2897, 3445, 4096, 4871, 5793, 6889,
- 8192, 9742, 11585, 13777, 16384, 19484, 23171, 27555,
- 32768, 38968
+static const int32_t qoffset_intra_tab[128] = {
+ 1, 2, 3, 4, 4, 5, 6, 7,
+ 8, 10, 12, 14, 16, 19, 23, 27,
+ 32, 38, 46, 54, 64, 76, 91, 108,
+ 128, 152, 181, 216, 256, 305, 362, 431,
+ 512, 609, 724, 861, 1024, 1218, 1448, 1722,
+ 2048, 2436, 2897, 3445, 4096, 4871, 5793, 6889,
+ 8192, 9742, -6658, 13777, 16384, -790, 4927, -5258,
+ 32768, -1581, -8390, -10518, 65536, -3163, 1461, 11776,
+ 131072, -6328, 2922, -9261, 262144, 7616, 5845, 14289,
+ 524288, -5042, -6554, -4235, 1048576, -10084, 5134, -8471,
+ 2097152, 104, -7976, 15871, 4194304, 208, 2290, -1072,
+ 8388608, 416, 4579, -2146, 16777216, 832, -9085, -4293,
+ 33554432, 1663, 72, -8587, 67108864, 3327, 143, 15638,
+134217728, 6653, 285, -1537, 268435456, -6968, 570, -3075,
+536870912, 6336, 1141, -6151, -1073741823, -7602, 2281, -12304,
+ 0, 5069, 4561, 8204, 0, -10136, -9121, -16406,
};
static const int qoffset_inter_tab[MAX_QUANT+1] = {
static int alloc_sequence_buffers(DiracContext *s)
{
- int sbwidth = DIVRNDUP(s->source.width, 4);
- int sbheight = DIVRNDUP(s->source.height, 4);
+ int sbwidth = DIVRNDUP(s->seq.width, 4);
+ int sbheight = DIVRNDUP(s->seq.height, 4);
int i, w, h, top_padding;
/* todo: think more about this / use or set Plane here */
for (i = 0; i < 3; i++) {
int max_xblen = MAX_BLOCKSIZE >> (i ? s->chroma_x_shift : 0);
int max_yblen = MAX_BLOCKSIZE >> (i ? s->chroma_y_shift : 0);
- w = s->source.width >> (i ? s->chroma_x_shift : 0);
- h = s->source.height >> (i ? s->chroma_y_shift : 0);
+ w = s->seq.width >> (i ? s->chroma_x_shift : 0);
+ h = s->seq.height >> (i ? s->chroma_y_shift : 0);
/* we allocate the max we support here since num decompositions can
* change from frame to frame. Stride is aligned to 16 for SIMD, and
w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); /* FIXME: Should this be 16 for SSE??? */
h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2;
- s->plane[i].idwt_buf_base = av_mallocz_array((w+max_xblen), h * sizeof(IDWTELEM));
- s->plane[i].idwt_tmp = av_malloc_array((w+16), sizeof(IDWTELEM));
- s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + top_padding*w;
+ s->plane[i].idwt_buf_base = av_mallocz_array((w+max_xblen), h * (2 << s->pshift));
+ s->plane[i].idwt_tmp = av_malloc_array((w+16), 2 << s->pshift);
+ s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + (top_padding*w)*(2 << s->pshift);
if (!s->plane[i].idwt_buf_base || !s->plane[i].idwt_tmp)
return AVERROR(ENOMEM);
}
static int alloc_buffers(DiracContext *s, int stride)
{
- int w = s->source.width;
- int h = s->source.height;
+ int w = s->seq.width;
+ int h = s->seq.height;
av_assert0(stride >= w);
stride += 64;
#define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0))
-static inline void coeff_unpack_arith(DiracArith *c, int qfactor, int qoffset,
- SubBand *b, IDWTELEM *buf, int x, int y)
-{
- int coeff, sign;
- int sign_pred = 0;
- int pred_ctx = CTX_ZPZN_F1;
-
- /* Check if the parent subband has a 0 in the corresponding position */
- if (b->parent)
- pred_ctx += !!b->parent->ibuf[b->parent->stride * (y>>1) + (x>>1)] << 1;
-
- if (b->orientation == subband_hl)
- sign_pred = buf[-b->stride];
-
- /* Determine if the pixel has only zeros in its neighbourhood */
- if (x) {
- pred_ctx += !(buf[-1] | buf[-b->stride] | buf[-1-b->stride]);
- if (b->orientation == subband_lh)
- sign_pred = buf[-1];
- } else {
- pred_ctx += !buf[-b->stride];
- }
-
- coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA);
- if (coeff) {
- coeff = (coeff * qfactor + qoffset + 2) >> 2;
- sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred));
- coeff = (coeff ^ -sign) + sign;
- }
- *buf = coeff;
-}
-
static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset)
{
int sign, coeff;
return coeff;
}
+#define UNPACK_ARITH(n, type) \
+ static inline void coeff_unpack_arith_##n(DiracArith *c, int qfactor, int qoffset, \
+ SubBand *b, type *buf, int x, int y) \
+ { \
+ int coeff, sign, sign_pred = 0, pred_ctx = CTX_ZPZN_F1; \
+ const int mstride = -(b->stride >> (1+b->pshift)); \
+ if (b->parent) { \
+ const type *pbuf = (type *)b->parent->ibuf; \
+ const int stride = b->parent->stride >> (1+b->parent->pshift); \
+ pred_ctx += !!pbuf[stride * (y>>1) + (x>>1)] << 1; \
+ } \
+ if (b->orientation == subband_hl) \
+ sign_pred = buf[mstride]; \
+ if (x) { \
+ pred_ctx += !(buf[-1] | buf[mstride] | buf[-1 + mstride]); \
+ if (b->orientation == subband_lh) \
+ sign_pred = buf[-1]; \
+ } else { \
+ pred_ctx += !buf[mstride]; \
+ } \
+ coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA); \
+ if (coeff) { \
+ coeff = (coeff * qfactor + qoffset + 2) >> 2; \
+ sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred)); \
+ coeff = (coeff ^ -sign) + sign; \
+ } \
+ *buf = coeff; \
+ } \
+
+UNPACK_ARITH(8, int16_t)
+UNPACK_ARITH(10, int32_t)
+
/**
* Decode the coeffs in the rectangle defined by left, right, top, bottom
* [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock()
{
int x, y, zero_block;
int qoffset, qfactor;
- IDWTELEM *buf;
+ uint8_t *buf;
/* check for any coded coefficients in this codeblock */
if (!blockcnt_one) {
qoffset = qoffset_inter_tab[b->quant];
buf = b->ibuf + top * b->stride;
- for (y = top; y < bottom; y++) {
- for (x = left; x < right; x++) {
- /* [DIRAC_STD] 13.4.4 Subband coefficients. coeff_unpack() */
- if (is_arith)
- coeff_unpack_arith(c, qfactor, qoffset, b, buf+x, x, y);
- else
- buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (is_arith) {
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ if (b->pshift) {
+ coeff_unpack_arith_10(c, qfactor, qoffset, b, (int32_t*)(buf)+x, x, y);
+ } else {
+ coeff_unpack_arith_8(c, qfactor, qoffset, b, (int16_t*)(buf)+x, x, y);
+ }
+ }
+ buf += b->stride;
}
- buf += b->stride;
- }
+ } else {
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ int val = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (b->pshift) {
+ AV_WN32(&buf[4*x], val);
+ } else {
+ AV_WN16(&buf[2*x], val);
+ }
+ }
+ buf += b->stride;
+ }
+ }
}
/**
* Dirac Specification ->
* 13.3 intra_dc_prediction(band)
*/
-static inline void intra_dc_prediction(SubBand *b)
-{
- IDWTELEM *buf = b->ibuf;
- int x, y;
-
- for (x = 1; x < b->width; x++)
- buf[x] += buf[x-1];
- buf += b->stride;
-
- for (y = 1; y < b->height; y++) {
- buf[0] += buf[-b->stride];
-
- for (x = 1; x < b->width; x++) {
- int pred = buf[x - 1] + buf[x - b->stride] + buf[x - b->stride-1];
- buf[x] += divide3(pred);
- }
- buf += b->stride;
- }
-}
+#define INTRA_DC_PRED(n, type) \
+ static inline void intra_dc_prediction_##n(SubBand *b) \
+ { \
+ type *buf = (type*)b->ibuf; \
+ int x, y; \
+ \
+ for (x = 1; x < b->width; x++) \
+ buf[x] += buf[x-1]; \
+ buf += (b->stride >> (1+b->pshift)); \
+ \
+ for (y = 1; y < b->height; y++) { \
+ buf[0] += buf[-(b->stride >> (1+b->pshift))]; \
+ \
+ for (x = 1; x < b->width; x++) { \
+ int pred = buf[x - 1] + buf[x - (b->stride >> (1+b->pshift))] + buf[x - (b->stride >> (1+b->pshift))-1]; \
+ buf[x] += divide3(pred); \
+ } \
+ buf += (b->stride >> (1+b->pshift)); \
+ } \
+ } \
+
+INTRA_DC_PRED(8, int16_t)
+INTRA_DC_PRED(10, int32_t)
/**
* Dirac Specification ->
top = bottom;
}
- if (b->orientation == subband_ll && s->num_refs == 0)
- intra_dc_prediction(b);
+ if (b->orientation == subband_ll && s->num_refs == 0) {
+ if (s->pshift) {
+ intra_dc_prediction_10(b);
+ } else {
+ intra_dc_prediction_8(b);
+ }
+ }
}
static int decode_subband_arith(AVCodecContext *avctx, void *b)
avctx->execute(avctx, decode_subband_golomb, bands, NULL, num_bands, sizeof(SubBand*));
}
-/* [DIRAC_STD] 13.5.5.2 Luma slice subband data. luma_slice_band(level,orient,sx,sy) --> if b2 == NULL */
-/* [DIRAC_STD] 13.5.5.3 Chroma slice subband data. chroma_slice_band(level,orient,sx,sy) --> if b2 != NULL */
-static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
- int slice_x, int slice_y, int bits_end,
- SubBand *b1, SubBand *b2)
+#define PARSE_VALUES(type, x, gb, ebits, buf1, buf2) \
+ type *buf = (type *)buf1; \
+ buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \
+ if (get_bits_count(gb) >= ebits) \
+ return; \
+ if (buf2) { \
+ buf = (type *)buf2; \
+ buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \
+ if (get_bits_count(gb) >= ebits) \
+ return; \
+ } \
+
+static void decode_subband(DiracContext *s, GetBitContext *gb, int quant,
+ int slice_x, int slice_y, int bits_end,
+ SubBand *b1, SubBand *b2)
{
- int left = b1->width * slice_x / s->lowdelay.num_x;
- int right = b1->width *(slice_x+1) / s->lowdelay.num_x;
- int top = b1->height * slice_y / s->lowdelay.num_y;
- int bottom = b1->height *(slice_y+1) / s->lowdelay.num_y;
+ int left = b1->width * slice_x / s->num_x;
+ int right = b1->width *(slice_x+1) / s->num_x;
+ int top = b1->height * slice_y / s->num_y;
+ int bottom = b1->height *(slice_y+1) / s->num_y;
- int qfactor = qscale_tab[FFMIN(quant, MAX_QUANT)];
- int qoffset = qoffset_intra_tab[FFMIN(quant, MAX_QUANT)];
+ int qfactor = qscale_tab[quant & 0x7f];
+ int qoffset = qoffset_intra_tab[quant & 0x7f];
- IDWTELEM *buf1 = b1->ibuf + top * b1->stride;
- IDWTELEM *buf2 = b2 ? b2->ibuf + top * b2->stride : NULL;
+ uint8_t *buf1 = b1->ibuf + top * b1->stride;
+ uint8_t *buf2 = b2 ? b2->ibuf + top * b2->stride: NULL;
int x, y;
/* we have to constantly check for overread since the spec explicitly
requires this, with the meaning that all remaining coeffs are set to 0 */
if (get_bits_count(gb) >= bits_end)
return;
- for (y = top; y < bottom; y++) {
- for (x = left; x < right; x++) {
- buf1[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
- if (get_bits_count(gb) >= bits_end)
- return;
- if (buf2) {
- buf2[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
- if (get_bits_count(gb) >= bits_end)
- return;
+ if (s->pshift) {
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ PARSE_VALUES(int32_t, x, gb, bits_end, buf1, buf2);
}
+ buf1 += b1->stride;
+ if (buf2)
+ buf2 += b2->stride;
+ }
+ }
+ else {
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ PARSE_VALUES(int16_t, x, gb, bits_end, buf1, buf2);
+ }
+ buf1 += b1->stride;
+ if (buf2)
+ buf2 += b2->stride;
}
- buf1 += b1->stride;
- if (buf2)
- buf2 += b2->stride;
}
}
-struct lowdelay_slice {
+/* Used by Low Delay and High Quality profiles */
+typedef struct DiracSlice {
GetBitContext gb;
int slice_x;
int slice_y;
int bytes;
-};
+} DiracSlice;
/**
static int decode_lowdelay_slice(AVCodecContext *avctx, void *arg)
{
DiracContext *s = avctx->priv_data;
- struct lowdelay_slice *slice = arg;
+ DiracSlice *slice = arg;
GetBitContext *gb = &slice->gb;
enum dirac_subband orientation;
int level, quant, chroma_bits, chroma_end;
for (level = 0; level < s->wavelet_depth; level++)
for (orientation = !!level; orientation < 4; orientation++) {
quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
- lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end,
- &s->plane[0].band[level][orientation], NULL);
+ decode_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end,
+ &s->plane[0].band[level][orientation], NULL);
}
/* consume any unused bits from luma */
for (level = 0; level < s->wavelet_depth; level++)
for (orientation = !!level; orientation < 4; orientation++) {
quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
- lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end,
- &s->plane[1].band[level][orientation],
- &s->plane[2].band[level][orientation]);
+ decode_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end,
+ &s->plane[1].band[level][orientation],
+ &s->plane[2].band[level][orientation]);
+ }
+
+ return 0;
+}
+
+/**
+ * VC-2 Specification ->
+ * 13.5.3 hq_slice(sx,sy)
+ */
+static int decode_hq_slice(DiracContext *s, GetBitContext *gb,
+ int slice_x, int slice_y)
+{
+ int i, quant, level, orientation, quant_idx;
+ uint8_t quants[MAX_DWT_LEVELS][4];
+
+ skip_bits_long(gb, 8*s->highquality.prefix_bytes);
+ quant_idx = get_bits(gb, 8);
+
+ /* Slice quantization (slice_quantizers() in the specs) */
+ for (level = 0; level < s->wavelet_depth; level++) {
+ for (orientation = !!level; orientation < 4; orientation++) {
+ quant = FFMAX(quant_idx - s->lowdelay.quant[level][orientation], 0);
+ quants[level][orientation] = quant;
}
+ }
+
+ /* Luma + 2 Chroma planes */
+ for (i = 0; i < 3; i++) {
+ int length = s->highquality.size_scaler * get_bits(gb, 8);
+ int bits_left = 8 * length;
+ int bits_end = get_bits_count(gb) + bits_left;
+ for (level = 0; level < s->wavelet_depth; level++) {
+ for (orientation = !!level; orientation < 4; orientation++) {
+ decode_subband(s, gb, quants[level][orientation], slice_x, slice_y, bits_end,
+ &s->plane[i].band[level][orientation], NULL);
+ }
+ }
+ skip_bits_long(gb, bits_end - get_bits_count(gb));
+ }
return 0;
}
AVCodecContext *avctx = s->avctx;
int slice_x, slice_y, bytes, bufsize;
const uint8_t *buf;
- struct lowdelay_slice *slices;
+ DiracSlice *slices;
int slice_num = 0;
- slices = av_mallocz_array(s->lowdelay.num_x, s->lowdelay.num_y * sizeof(struct lowdelay_slice));
+ slices = av_mallocz_array(s->num_x, s->num_y * sizeof(DiracSlice));
if (!slices)
return AVERROR(ENOMEM);
buf = s->gb.buffer + get_bits_count(&s->gb)/8;
bufsize = get_bits_left(&s->gb);
- for (slice_y = 0; bufsize > 0 && slice_y < s->lowdelay.num_y; slice_y++)
- for (slice_x = 0; bufsize > 0 && slice_x < s->lowdelay.num_x; slice_x++) {
- bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den
- - slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den;
-
- slices[slice_num].bytes = bytes;
- slices[slice_num].slice_x = slice_x;
- slices[slice_num].slice_y = slice_y;
- init_get_bits(&slices[slice_num].gb, buf, bufsize);
- slice_num++;
-
- buf += bytes;
- if (bufsize/8 >= bytes)
- bufsize -= bytes*8;
- else
- bufsize = 0;
+ if (s->hq_picture) {
+ for (slice_y = 0; slice_y < s->num_y; slice_y++) {
+ for (slice_x = 0; slice_x < s->num_x; slice_x++) {
+ decode_hq_slice(s, &s->gb, slice_x, slice_y);
+ }
}
+ } else {
+ for (slice_y = 0; bufsize > 0 && slice_y < s->num_y; slice_y++) {
+ for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) {
+ bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den
+ - slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den;
+ slices[slice_num].bytes = bytes;
+ slices[slice_num].slice_x = slice_x;
+ slices[slice_num].slice_y = slice_y;
+ init_get_bits(&slices[slice_num].gb, buf, bufsize);
+ slice_num++;
+
+ buf += bytes;
+ if (bufsize/8 >= bytes)
+ bufsize -= bytes*8;
+ else
+ bufsize = 0;
+ }
+ }
+ avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
+ sizeof(DiracSlice)); /* [DIRAC_STD] 13.5.2 Slices */
+ }
- avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
- sizeof(struct lowdelay_slice)); /* [DIRAC_STD] 13.5.2 Slices */
- intra_dc_prediction(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
- intra_dc_prediction(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
- intra_dc_prediction(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ if (s->dc_prediction) {
+ if (s->pshift) {
+ intra_dc_prediction_10(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction_10(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction_10(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ } else {
+ intra_dc_prediction_8(&s->plane[0].band[0][0]);
+ intra_dc_prediction_8(&s->plane[1].band[0][0]);
+ intra_dc_prediction_8(&s->plane[2].band[0][0]);
+ }
+ }
av_free(slices);
return 0;
}
for (i = 0; i < 3; i++) {
Plane *p = &s->plane[i];
- p->width = s->source.width >> (i ? s->chroma_x_shift : 0);
- p->height = s->source.height >> (i ? s->chroma_y_shift : 0);
+ p->width = s->seq.width >> (i ? s->chroma_x_shift : 0);
+ p->height = s->seq.height >> (i ? s->chroma_y_shift : 0);
p->idwt_width = w = CALC_PADDING(p->width , s->wavelet_depth);
p->idwt_height = h = CALC_PADDING(p->height, s->wavelet_depth);
- p->idwt_stride = FFALIGN(p->idwt_width, 8);
+ p->idwt_stride = FFALIGN(p->idwt_width << (1 + s->pshift), 8);
for (level = s->wavelet_depth-1; level >= 0; level--) {
w = w>>1;
for (orientation = !!level; orientation < 4; orientation++) {
SubBand *b = &p->band[level][orientation];
+ b->pshift = s->pshift;
b->ibuf = p->idwt_buf;
b->level = level;
b->stride = p->idwt_stride << (s->wavelet_depth - level);
b->orientation = orientation;
if (orientation & 1)
- b->ibuf += w;
+ b->ibuf += w << (1+b->pshift);
if (orientation > 1)
- b->ibuf += b->stride>>1;
+ b->ibuf += (b->stride>>1);
if (level)
b->parent = &p->band[level-1][orientation];
}
CHECKEDREAD(s->codeblock_mode, tmp > 1, "unknown codeblock mode\n")
- } else
+ }
+ else {
for (i = 0; i <= s->wavelet_depth; i++)
s->codeblock[i].width = s->codeblock[i].height = 1;
- } else {
- /* Slice parameters + quantization matrix*/
- /*[DIRAC_STD] 11.3.4 Slice coding Parameters (low delay syntax only). slice_parameters() */
- s->lowdelay.num_x = svq3_get_ue_golomb(gb);
- s->lowdelay.num_y = svq3_get_ue_golomb(gb);
- s->lowdelay.bytes.num = svq3_get_ue_golomb(gb);
- s->lowdelay.bytes.den = svq3_get_ue_golomb(gb);
-
- if (s->lowdelay.bytes.den <= 0) {
- av_log(s->avctx,AV_LOG_ERROR,"Invalid lowdelay.bytes.den\n");
- return AVERROR_INVALIDDATA;
+ }
+ }
+ else {
+ s->num_x = svq3_get_ue_golomb(gb);
+ s->num_y = svq3_get_ue_golomb(gb);
+ if (s->ld_picture) {
+ s->lowdelay.bytes.num = svq3_get_ue_golomb(gb);
+ s->lowdelay.bytes.den = svq3_get_ue_golomb(gb);
+ if (s->lowdelay.bytes.den <= 0) {
+ av_log(s->avctx,AV_LOG_ERROR,"Invalid lowdelay.bytes.den\n");
+ return AVERROR_INVALIDDATA;
+ }
+ } else if (s->hq_picture) {
+ s->highquality.prefix_bytes = svq3_get_ue_golomb(gb);
+ s->highquality.size_scaler = svq3_get_ue_golomb(gb);
}
/* [DIRAC_STD] 11.3.5 Quantisation matrices (low-delay syntax). quant_matrix() */
align_get_bits(gb);
/* [DIRAC_STD] 11.2.4 and 12.2.1 Number of blocks and superblocks */
- s->sbwidth = DIVRNDUP(s->source.width, 4*s->plane[0].xbsep);
- s->sbheight = DIVRNDUP(s->source.height, 4*s->plane[0].ybsep);
+ s->sbwidth = DIVRNDUP(s->seq.width, 4*s->plane[0].xbsep);
+ s->sbheight = DIVRNDUP(s->seq.height, 4*s->plane[0].ybsep);
s->blwidth = 4 * s->sbwidth;
s->blheight = 4 * s->sbheight;
/* [DIRAC_STD] 13.5.1 low_delay_transform_data() */
for (comp = 0; comp < 3; comp++) {
Plane *p = &s->plane[comp];
- memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height);
}
if (!s->zero_res) {
if ((ret = decode_lowdelay(s)) < 0)
if (!s->zero_res && !s->low_delay)
{
- memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height);
decode_component(s, comp); /* [DIRAC_STD] 13.4.1 core_transform_data() */
}
ret = ff_spatial_idwt_init2(&d, p->idwt_buf, p->idwt_width, p->idwt_height, p->idwt_stride,
- s->wavelet_idx+2, s->wavelet_depth, p->idwt_tmp);
+ s->wavelet_idx+2, s->wavelet_depth, p->idwt_tmp, s->bit_depth);
if (ret < 0)
return ret;
if (!s->num_refs) { /* intra */
for (y = 0; y < p->height; y += 16) {
ff_spatial_idwt_slice2(&d, y+16); /* decode */
- s->diracdsp.put_signed_rect_clamped(frame + y*p->stride, p->stride,
- p->idwt_buf + y*p->idwt_stride, p->idwt_stride, p->width, 16);
+ s->diracdsp.put_signed_rect_clamped[s->pshift](frame + y*p->stride, p->stride,
+ p->idwt_buf + y*p->idwt_stride, p->idwt_stride, p->width, 16);
}
} else { /* inter */
int rowheight = p->ybsep*p->stride;
mctmp += (start - dsty)*p->stride + p->xoffset;
ff_spatial_idwt_slice2(&d, start + h); /* decode */
+ /* NOTE: add_rect_clamped hasn't been templated hence the shifts.
+ * idwt_stride is passed as pixels, not in bytes as in the rest of the decoder */
s->diracdsp.add_rect_clamped(frame + start*p->stride, mctmp, p->stride,
- p->idwt_buf + start*p->idwt_stride, p->idwt_stride, p->width, h);
+ (int16_t*)(p->idwt_buf) + start*(p->idwt_stride >> 1), (p->idwt_stride >> 1), p->width, h);
dsty += p->ybsep;
}
{
DiracContext *s = avctx->priv_data;
DiracFrame *pic = NULL;
- int ret, i, parse_code;
+ AVDiracSeqHeader *dsh;
+ int ret, i;
+ uint8_t parse_code;
unsigned tmp;
if (size < DATA_UNIT_HEADER_SIZE)
init_get_bits(&s->gb, &buf[13], 8*(size - DATA_UNIT_HEADER_SIZE));
- if (parse_code == pc_seq_header) {
+ if (parse_code == DIRAC_PCODE_SEQ_HEADER) {
if (s->seen_sequence_header)
return 0;
/* [DIRAC_STD] 10. Sequence header */
- ret = avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source);
- if (ret < 0)
+ ret = av_dirac_parse_sequence_header(&dsh, buf + DATA_UNIT_HEADER_SIZE, size - DATA_UNIT_HEADER_SIZE, avctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "error parsing sequence header");
return ret;
+ }
+
+ ret = ff_set_dimensions(avctx, dsh->width, dsh->height);
+ if (ret < 0) {
+ av_freep(&dsh);
+ return ret;
+ }
+
+ ff_set_sar(avctx, dsh->sample_aspect_ratio);
+ avctx->pix_fmt = dsh->pix_fmt;
+ avctx->color_range = dsh->color_range;
+ avctx->color_trc = dsh->color_trc;
+ avctx->color_primaries = dsh->color_primaries;
+ avctx->colorspace = dsh->colorspace;
+ avctx->profile = dsh->profile;
+ avctx->level = dsh->level;
+ avctx->framerate = dsh->framerate;
+ s->bit_depth = dsh->bit_depth;
+ s->seq = *dsh;
+ av_freep(&dsh);
+
+ s->pshift = s->bit_depth > 8;
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
return ret;
s->seen_sequence_header = 1;
- } else if (parse_code == pc_eos) { /* [DIRAC_STD] End of Sequence */
+ } else if (parse_code == DIRAC_PCODE_END_SEQ) { /* [DIRAC_STD] End of Sequence */
free_sequence_buffers(s);
s->seen_sequence_header = 0;
- } else if (parse_code == pc_aux_data) {
+ } else if (parse_code == DIRAC_PCODE_AUX) {
if (buf[13] == 1) { /* encoder implementation/version */
int ver[3];
/* versions older than 1.0.8 don't store quant delta for
av_log(avctx, AV_LOG_ERROR, "num_refs of 3\n");
return AVERROR_INVALIDDATA;
}
- s->num_refs = tmp;
- s->is_arith = (parse_code & 0x48) == 0x08; /* [DIRAC_STD] using_ac() */
- s->low_delay = (parse_code & 0x88) == 0x88; /* [DIRAC_STD] is_low_delay() */
- pic->reference = (parse_code & 0x0C) == 0x0C; /* [DIRAC_STD] is_reference() */
- pic->avframe->key_frame = s->num_refs == 0; /* [DIRAC_STD] is_intra() */
- pic->avframe->pict_type = s->num_refs + 1; /* Definition of AVPictureType in avutil.h */
+ s->num_refs = tmp;
+ s->is_arith = (parse_code & 0x48) == 0x08; /* [DIRAC_STD] using_ac() */
+ s->low_delay = (parse_code & 0x88) == 0x88; /* [DIRAC_STD] is_low_delay() */
+ s->core_syntax = (parse_code & 0x88) == 0x08; /* [DIRAC_STD] is_core_syntax() */
+ s->ld_picture = (parse_code & 0xF8) == 0xC8; /* [DIRAC_STD] is_ld_picture() */
+ s->hq_picture = (parse_code & 0xF8) == 0xE8; /* [DIRAC_STD] is_hq_picture() */
+ s->dc_prediction = (parse_code & 0x28) == 0x08; /* [DIRAC_STD] using_dc_prediction() */
+ pic->reference = (parse_code & 0x0C) == 0x0C; /* [DIRAC_STD] is_reference() */
+ pic->avframe->key_frame = s->num_refs == 0; /* [DIRAC_STD] is_intra() */
+ pic->avframe->pict_type = s->num_refs + 1; /* Definition of AVPictureType in avutil.h */
+
+ if (s->version.minor == 2 && parse_code == 0x88)
+ s->ld_picture = 1;
+
+ if (s->low_delay && !(s->ld_picture || s->hq_picture) ) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid low delay flag\n");
+ return AVERROR_INVALIDDATA;
+ }
if ((ret = get_buffer_with_edge(avctx, pic->avframe, (parse_code & 0x0C) == 0x0C ? AV_GET_BUFFER_FLAG_REF : 0)) < 0)
return ret;
projects / ffmpeg / blobdiff