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https://github.com/FFmpeg/FFmpeg.git
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diracdec: Move strides to bytes, and pointer types to uint8_t.
Start templating functions for move to support 10-bit Parts of this patch were written by Rostislav Pehlivanov
This commit is contained in:
Kieran Kunhya
Rostislav Pehlivanov
parent
bd3409f52a
commit
9553689854
@ -118,7 +118,7 @@ static const enum AVPixelFormat dirac_pix_fmt[2][3] = {
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/* [DIRAC_STD] 10.3 Parse Source Parameters.
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* source_parameters(base_video_format) */
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static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
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dirac_source_params *source)
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dirac_source_params *source, int *bit_depth)
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{
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AVRational frame_rate = { 0, 0 };
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unsigned luma_depth = 8, luma_offset = 16;
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@ -239,6 +239,9 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
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if (luma_depth > 8)
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av_log(avctx, AV_LOG_WARNING, "Bitdepth greater than 8\n");
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*bit_depth = luma_depth;
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avctx->pix_fmt = dirac_pix_fmt[!luma_offset][source->chroma_format];
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avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_x_shift, &chroma_y_shift);
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if ((source->width % (1<<chroma_x_shift)) || (source->height % (1<<chroma_y_shift))) {
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@ -290,7 +293,8 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
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/* [DIRAC_STD] 10. Sequence Header. sequence_header() */
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int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
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dirac_source_params *source)
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dirac_source_params *source,
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int *bit_depth)
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{
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unsigned version_major;
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unsigned video_format, picture_coding_mode;
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@ -318,7 +322,7 @@ int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
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/* [DIRAC_STD] 10.3 Source Parameters
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* Override the defaults. */
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if (ret = parse_source_parameters(avctx, gb, source))
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if (ret = parse_source_parameters(avctx, gb, source, bit_depth))
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return ret;
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ret = ff_set_dimensions(avctx, source->width, source->height);
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@ -55,6 +55,7 @@ typedef struct dirac_source_params {
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} dirac_source_params;
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int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
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dirac_source_params *source);
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dirac_source_params *source,
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int *bit_depth);
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#endif /* AVCODEC_DIRAC_H */
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@ -97,11 +97,12 @@ typedef struct {
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typedef struct SubBand {
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int level;
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int orientation;
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int stride;
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int stride; /* in bytes */
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int width;
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int height;
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int pshift;
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int quant;
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IDWTELEM *ibuf;
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uint8_t *ibuf;
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struct SubBand *parent;
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/* for low delay */
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@ -117,9 +118,9 @@ typedef struct Plane {
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int idwt_width;
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int idwt_height;
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int idwt_stride;
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IDWTELEM *idwt_buf;
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IDWTELEM *idwt_buf_base;
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IDWTELEM *idwt_tmp;
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uint8_t *idwt_buf;
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uint8_t *idwt_buf_base;
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uint8_t *idwt_tmp;
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/* block length */
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uint8_t xblen;
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@ -147,6 +148,9 @@ typedef struct DiracContext {
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int chroma_x_shift;
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int chroma_y_shift;
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int bit_depth; /* bit depth */
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int pshift; /* pixel shift = bit_depth > 8 */
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int zero_res; /* zero residue flag */
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int is_arith; /* whether coeffs use arith or golomb coding */
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int low_delay; /* use the low delay syntax */
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@ -339,9 +343,9 @@ static int alloc_sequence_buffers(DiracContext *s)
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w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); /* FIXME: Should this be 16 for SSE??? */
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h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2;
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s->plane[i].idwt_buf_base = av_mallocz_array((w+max_xblen), h * sizeof(IDWTELEM));
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s->plane[i].idwt_tmp = av_malloc_array((w+16), sizeof(IDWTELEM));
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s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + top_padding*w;
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s->plane[i].idwt_buf_base = av_mallocz_array((w+max_xblen), h * (2 << s->pshift));
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s->plane[i].idwt_tmp = av_malloc_array((w+16), 2 << s->pshift);
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s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + (top_padding*w)*(2 << s->pshift);
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if (!s->plane[i].idwt_buf_base || !s->plane[i].idwt_tmp)
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return AVERROR(ENOMEM);
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}
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@ -462,38 +466,6 @@ static av_cold int dirac_decode_end(AVCodecContext *avctx)
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#define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0))
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static inline void coeff_unpack_arith(DiracArith *c, int qfactor, int qoffset,
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SubBand *b, IDWTELEM *buf, int x, int y)
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{
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int coeff, sign;
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int sign_pred = 0;
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int pred_ctx = CTX_ZPZN_F1;
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/* Check if the parent subband has a 0 in the corresponding position */
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if (b->parent)
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pred_ctx += !!b->parent->ibuf[b->parent->stride * (y>>1) + (x>>1)] << 1;
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if (b->orientation == subband_hl)
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sign_pred = buf[-b->stride];
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/* Determine if the pixel has only zeros in its neighbourhood */
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if (x) {
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pred_ctx += !(buf[-1] | buf[-b->stride] | buf[-1-b->stride]);
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if (b->orientation == subband_lh)
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sign_pred = buf[-1];
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} else {
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pred_ctx += !buf[-b->stride];
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}
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coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA);
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if (coeff) {
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coeff = (coeff * qfactor + qoffset + 2) >> 2;
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sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred));
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coeff = (coeff ^ -sign) + sign;
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}
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*buf = coeff;
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}
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static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset)
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{
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int sign, coeff;
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@ -507,6 +479,38 @@ static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffse
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return coeff;
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}
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#define UNPACK_ARITH(n, type) \
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static inline void coeff_unpack_arith_##n(DiracArith *c, int qfactor, int qoffset, \
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SubBand *b, type *buf, int x, int y) \
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{ \
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int coeff, sign, sign_pred = 0, pred_ctx = CTX_ZPZN_F1; \
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const int mstride = -(b->stride >> (1+b->pshift)); \
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if (b->parent) { \
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const type *pbuf = (type *)b->parent->ibuf; \
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const int stride = b->parent->stride >> (1+b->parent->pshift); \
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pred_ctx += !!pbuf[stride * (y>>1) + (x>>1)] << 1; \
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} \
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if (b->orientation == subband_hl) \
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sign_pred = buf[mstride]; \
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if (x) { \
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pred_ctx += !(buf[-1] | buf[mstride] | buf[-1 + mstride]); \
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if (b->orientation == subband_lh) \
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sign_pred = buf[-1]; \
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} else { \
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pred_ctx += !buf[mstride]; \
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} \
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coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA); \
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if (coeff) { \
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coeff = (coeff * qfactor + qoffset + 2) >> 2; \
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sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred)); \
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coeff = (coeff ^ -sign) + sign; \
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} \
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*buf = coeff; \
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} \
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UNPACK_ARITH(8, int16_t)
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UNPACK_ARITH(10, int32_t)
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/**
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* Decode the coeffs in the rectangle defined by left, right, top, bottom
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* [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock()
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@ -518,7 +522,7 @@ static inline void codeblock(DiracContext *s, SubBand *b,
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{
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int x, y, zero_block;
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int qoffset, qfactor;
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IDWTELEM *buf;
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uint8_t *buf;
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/* check for any coded coefficients in this codeblock */
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if (!blockcnt_one) {
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@ -554,41 +558,59 @@ static inline void codeblock(DiracContext *s, SubBand *b,
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qoffset = qoffset_inter_tab[b->quant];
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buf = b->ibuf + top * b->stride;
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if (is_arith) {
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for (y = top; y < bottom; y++) {
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for (x = left; x < right; x++) {
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/* [DIRAC_STD] 13.4.4 Subband coefficients. coeff_unpack() */
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if (is_arith)
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coeff_unpack_arith(c, qfactor, qoffset, b, buf+x, x, y);
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else
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buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
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if (b->pshift) {
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coeff_unpack_arith_10(c, qfactor, qoffset, b, (int32_t*)(buf)+x, x, y);
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} else {
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coeff_unpack_arith_8(c, qfactor, qoffset, b, (int16_t*)(buf)+x, x, y);
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}
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}
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buf += b->stride;
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}
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} else {
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for (y = top; y < bottom; y++) {
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for (x = left; x < right; x++) {
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int val = coeff_unpack_golomb(gb, qfactor, qoffset);
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if (b->pshift) {
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AV_WN32(&buf[4*x], val);
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} else {
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AV_WN16(&buf[2*x], val);
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}
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}
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buf += b->stride;
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}
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}
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}
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/**
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* Dirac Specification ->
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* 13.3 intra_dc_prediction(band)
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*/
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static inline void intra_dc_prediction(SubBand *b)
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{
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IDWTELEM *buf = b->ibuf;
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int x, y;
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#define INTRA_DC_PRED(n, type) \
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static inline void intra_dc_prediction_##n(SubBand *b) \
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{ \
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type *buf = (type*)b->ibuf; \
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int x, y; \
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\
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for (x = 1; x < b->width; x++) \
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buf[x] += buf[x-1]; \
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buf += (b->stride >> (1+b->pshift)); \
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\
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for (y = 1; y < b->height; y++) { \
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buf[0] += buf[-(b->stride >> (1+b->pshift))]; \
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\
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for (x = 1; x < b->width; x++) { \
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int pred = buf[x - 1] + buf[x - (b->stride >> (1+b->pshift))] + buf[x - (b->stride >> (1+b->pshift))-1]; \
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buf[x] += divide3(pred); \
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} \
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buf += (b->stride >> (1+b->pshift)); \
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} \
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} \
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for (x = 1; x < b->width; x++)
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buf[x] += buf[x-1];
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buf += b->stride;
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for (y = 1; y < b->height; y++) {
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buf[0] += buf[-b->stride];
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for (x = 1; x < b->width; x++) {
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int pred = buf[x - 1] + buf[x - b->stride] + buf[x - b->stride-1];
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buf[x] += divide3(pred);
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}
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buf += b->stride;
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}
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}
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INTRA_DC_PRED(8, int16_t)
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INTRA_DC_PRED(10, int32_t)
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/**
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* Dirac Specification ->
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@ -623,8 +645,13 @@ static av_always_inline void decode_subband_internal(DiracContext *s, SubBand *b
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top = bottom;
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}
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if (b->orientation == subband_ll && s->num_refs == 0)
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intra_dc_prediction(b);
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if (b->orientation == subband_ll && s->num_refs == 0) {
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if (s->pshift) {
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intra_dc_prediction_10(b);
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} else {
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intra_dc_prediction_8(b);
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}
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}
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}
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static int decode_subband_arith(AVCodecContext *avctx, void *b)
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@ -680,6 +707,18 @@ static void decode_component(DiracContext *s, int comp)
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avctx->execute(avctx, decode_subband_golomb, bands, NULL, num_bands, sizeof(SubBand*));
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}
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#define PARSE_VALUES(type, x, gb, ebits, buf1, buf2) \
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type *buf = (type *)buf1; \
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buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \
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if (get_bits_count(gb) >= ebits) \
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return; \
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if (buf2) { \
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buf = (type *)buf2; \
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buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \
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if (get_bits_count(gb) >= ebits) \
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return; \
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} \
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/* [DIRAC_STD] 13.5.5.2 Luma slice subband data. luma_slice_band(level,orient,sx,sy) --> if b2 == NULL */
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/* [DIRAC_STD] 13.5.5.3 Chroma slice subband data. chroma_slice_band(level,orient,sx,sy) --> if b2 != NULL */
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static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
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@ -694,30 +733,35 @@ static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
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int qfactor = qscale_tab[FFMIN(quant, MAX_QUANT)];
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int qoffset = qoffset_intra_tab[FFMIN(quant, MAX_QUANT)];
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IDWTELEM *buf1 = b1->ibuf + top * b1->stride;
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IDWTELEM *buf2 = b2 ? b2->ibuf + top * b2->stride : NULL;
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uint8_t *buf1 = b1->ibuf + top * b1->stride;
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uint8_t *buf2 = b2 ? b2->ibuf + top * b2->stride: NULL;
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int x, y;
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/* we have to constantly check for overread since the spec explicitly
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requires this, with the meaning that all remaining coeffs are set to 0 */
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if (get_bits_count(gb) >= bits_end)
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return;
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if (s->pshift) {
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for (y = top; y < bottom; y++) {
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for (x = left; x < right; x++) {
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buf1[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
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if (get_bits_count(gb) >= bits_end)
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return;
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if (buf2) {
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buf2[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
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if (get_bits_count(gb) >= bits_end)
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return;
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}
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PARSE_VALUES(int32_t, x, gb, bits_end, buf1, buf2);
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}
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buf1 += b1->stride;
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if (buf2)
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buf2 += b2->stride;
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}
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}
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else {
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for (y = top; y < bottom; y++) {
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for (x = left; x < right; x++) {
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PARSE_VALUES(int16_t, x, gb, bits_end, buf1, buf2);
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}
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buf1 += b1->stride;
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if (buf2)
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buf2 += b2->stride;
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}
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}
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}
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struct lowdelay_slice {
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GetBitContext gb;
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@ -810,9 +854,15 @@ static int decode_lowdelay(DiracContext *s)
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avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
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sizeof(struct lowdelay_slice)); /* [DIRAC_STD] 13.5.2 Slices */
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intra_dc_prediction(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
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intra_dc_prediction(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
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intra_dc_prediction(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
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if (s->pshift) {
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intra_dc_prediction_10(&s->plane[0].band[0][0]);
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intra_dc_prediction_10(&s->plane[1].band[0][0]);
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intra_dc_prediction_10(&s->plane[2].band[0][0]);
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} else {
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intra_dc_prediction_8(&s->plane[0].band[0][0]);
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intra_dc_prediction_8(&s->plane[1].band[0][0]);
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intra_dc_prediction_8(&s->plane[2].band[0][0]);
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}
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av_free(slices);
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return 0;
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}
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@ -828,7 +878,7 @@ static void init_planes(DiracContext *s)
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p->height = s->source.height >> (i ? s->chroma_y_shift : 0);
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p->idwt_width = w = CALC_PADDING(p->width , s->wavelet_depth);
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p->idwt_height = h = CALC_PADDING(p->height, s->wavelet_depth);
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p->idwt_stride = FFALIGN(p->idwt_width, 8);
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p->idwt_stride = FFALIGN(p->idwt_width << (1 + s->pshift), 8);
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for (level = s->wavelet_depth-1; level >= 0; level--) {
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w = w>>1;
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@ -836,6 +886,7 @@ static void init_planes(DiracContext *s)
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for (orientation = !!level; orientation < 4; orientation++) {
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SubBand *b = &p->band[level][orientation];
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b->pshift = s->pshift;
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b->ibuf = p->idwt_buf;
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b->level = level;
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b->stride = p->idwt_stride << (s->wavelet_depth - level);
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@ -844,9 +895,9 @@ static void init_planes(DiracContext *s)
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b->orientation = orientation;
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if (orientation & 1)
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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];
|
||||
@ -1615,7 +1666,7 @@ static int dirac_decode_frame_internal(DiracContext *s)
|
||||
/* [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)
|
||||
@ -1633,11 +1684,11 @@ static int dirac_decode_frame_internal(DiracContext *s)
|
||||
|
||||
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);
|
||||
ret = ff_spatial_idwt_init2(&d, (int16_t*)p->idwt_buf, p->idwt_width, p->idwt_height, p->idwt_stride >> 1,
|
||||
s->wavelet_idx+2, s->wavelet_depth, (int16_t*)p->idwt_tmp);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
@ -1645,7 +1696,7 @@ static int dirac_decode_frame_internal(DiracContext *s)
|
||||
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);
|
||||
(int16_t*)(p->idwt_buf) + y*(p->idwt_stride >> 1), (p->idwt_stride >> 1), p->width, 16);
|
||||
}
|
||||
} else { /* inter */
|
||||
int rowheight = p->ybsep*p->stride;
|
||||
@ -1681,8 +1732,10 @@ static int dirac_decode_frame_internal(DiracContext *s)
|
||||
|
||||
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;
|
||||
}
|
||||
@ -1860,10 +1913,13 @@ static int dirac_decode_data_unit(AVCodecContext *avctx, const uint8_t *buf, int
|
||||
return 0;
|
||||
|
||||
/* [DIRAC_STD] 10. Sequence header */
|
||||
ret = avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source);
|
||||
ret = avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source,
|
||||
&s->bit_depth);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
s->pshift = s->bit_depth > 8;
|
||||
|
||||
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
|
||||
|
||||
ret = alloc_sequence_buffers(s);
|
||||
|
||||
@ -31,7 +31,7 @@ static int dirac_header(AVFormatContext *s, int idx)
|
||||
AVStream *st = s->streams[idx];
|
||||
dirac_source_params source;
|
||||
GetBitContext gb;
|
||||
int ret;
|
||||
int ret, bit_depth;
|
||||
|
||||
// already parsed the header
|
||||
if (st->codec->codec_id == AV_CODEC_ID_DIRAC)
|
||||
@ -41,7 +41,7 @@ static int dirac_header(AVFormatContext *s, int idx)
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = avpriv_dirac_parse_sequence_header(st->codec, &gb, &source);
|
||||
ret = avpriv_dirac_parse_sequence_header(st->codec, &gb, &source, &bit_depth);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user