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https://github.com/xenia-project/FFmpeg.git
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vp9: make decode_coeffs() return value void.
It was previously int and would return error if decode_coeffs_b() returns an error; however, that can never happen, so refactor all that code to make all dependent functions return void also (all the way up to decode_coeffs_sb()).
This commit is contained in:
Ronald S. Bultje
parent
65f41b5c5c
commit
f068aed7b8
115
libavcodec/vp9.c
115
libavcodec/vp9.c
@ -1986,7 +1986,7 @@ static int decode_coeffs_b(VP56RangeCoder *c, int16_t *coef, int n_coeffs,
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return i;
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}
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static int decode_coeffs(AVCodecContext *ctx)
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static void decode_coeffs(AVCodecContext *ctx)
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{
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VP9Context *s = ctx->priv_data;
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VP9Block *b = s->b;
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@ -2031,10 +2031,9 @@ static int decode_coeffs(AVCodecContext *ctx)
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b->bs > BS_8x8 ?
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n : 0]];
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int nnz = a[x] + l[y];
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if ((res = decode_coeffs_b(&s->c, s->block + 16 * n, 16 * step,
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res = decode_coeffs_b(&s->c, s->block + 16 * n, 16 * step,
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b->tx, c, e, p, nnz, yscans[txtp],
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ynbs[txtp], y_band_counts, qmul[0])) < 0)
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return res;
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ynbs[txtp], y_band_counts, qmul[0]);
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a[x] = l[y] = !!res;
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if (b->tx > TX_8X8) {
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AV_WN16A(&s->eob[n], res);
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@ -2071,11 +2070,9 @@ static int decode_coeffs(AVCodecContext *ctx)
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for (n = 0, y = 0; y < end_y; y += uvstep1d) {
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for (x = 0; x < end_x; x += uvstep1d, n += uvstep) {
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int nnz = a[x] + l[y];
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if ((res = decode_coeffs_b(&s->c, s->uvblock[pl] + 16 * n,
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res = decode_coeffs_b(&s->c, s->uvblock[pl] + 16 * n,
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16 * uvstep, b->uvtx, c, e, p, nnz,
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uvscan, uvnb, uv_band_counts,
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qmul[1])) < 0)
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return res;
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uvscan, uvnb, uv_band_counts, qmul[1]);
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a[x] = l[y] = !!res;
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if (b->uvtx > TX_8X8) {
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AV_WN16A(&s->uveob[pl][n], res);
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@ -2091,8 +2088,6 @@ static int decode_coeffs(AVCodecContext *ctx)
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memset(&a[x + 1], a[x], FFMIN(end_x - x - 1, uvstep1d - 1));
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}
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}
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return 0;
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}
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static av_always_inline int check_intra_mode(VP9Context *s, int mode, uint8_t **a,
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@ -2696,14 +2691,14 @@ static av_always_inline void mask_edges(struct VP9Filter *lflvl, int is_uv,
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}
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}
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static int decode_b(AVCodecContext *ctx, int row, int col,
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static void decode_b(AVCodecContext *ctx, int row, int col,
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struct VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff,
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enum BlockLevel bl, enum BlockPartition bp)
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{
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VP9Context *s = ctx->priv_data;
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VP9Block *b = s->b;
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enum BlockSize bs = bl * 3 + bp;
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int res, y, w4 = bwh_tab[1][bs][0], h4 = bwh_tab[1][bs][1], lvl;
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int y, w4 = bwh_tab[1][bs][0], h4 = bwh_tab[1][bs][1], lvl;
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int emu[2];
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AVFrame *f = s->frames[CUR_FRAME].tf.f;
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@ -2723,8 +2718,7 @@ static int decode_b(AVCodecContext *ctx, int row, int col,
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b->uvtx = b->tx - (w4 * 2 == (1 << b->tx) || h4 * 2 == (1 << b->tx));
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if (!b->skip) {
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if ((res = decode_coeffs(ctx)) < 0)
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return res;
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decode_coeffs(ctx);
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} else {
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int pl;
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@ -2744,7 +2738,7 @@ static int decode_b(AVCodecContext *ctx, int row, int col,
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s->uveob[0] += w4 * h4;
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s->uveob[1] += w4 * h4;
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return 0;
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return;
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}
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}
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@ -2846,16 +2840,14 @@ static int decode_b(AVCodecContext *ctx, int row, int col,
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s->uveob[0] += w4 * h4;
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s->uveob[1] += w4 * h4;
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}
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return 0;
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}
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static int decode_sb(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
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static void decode_sb(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
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ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
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{
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VP9Context *s = ctx->priv_data;
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int c = ((s->above_partition_ctx[col] >> (3 - bl)) & 1) |
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(((s->left_partition_ctx[row & 0x7] >> (3 - bl)) & 1) << 1), res;
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(((s->left_partition_ctx[row & 0x7] >> (3 - bl)) & 1) << 1);
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const uint8_t *p = s->keyframe ? vp9_default_kf_partition_probs[bl][c] :
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s->prob.p.partition[bl][c];
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enum BlockPartition bp;
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@ -2865,76 +2857,67 @@ static int decode_sb(AVCodecContext *ctx, int row, int col, struct VP9Filter *lf
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if (bl == BL_8X8) {
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bp = vp8_rac_get_tree(&s->c, vp9_partition_tree, p);
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res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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} else if (col + hbs < s->cols) { // FIXME why not <=?
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if (row + hbs < s->rows) { // FIXME why not <=?
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bp = vp8_rac_get_tree(&s->c, vp9_partition_tree, p);
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switch (bp) {
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case PARTITION_NONE:
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res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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break;
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case PARTITION_H:
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if (!(res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp))) {
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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res = decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, bl, bp);
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}
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decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, bl, bp);
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break;
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case PARTITION_V:
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if (!(res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp))) {
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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yoff += hbs * 8;
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uvoff += hbs * 4;
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res = decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, bl, bp);
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}
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decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, bl, bp);
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break;
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case PARTITION_SPLIT:
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if (!(res = decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1))) {
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if (!(res = decode_sb(ctx, row, col + hbs, lflvl,
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yoff + 8 * hbs, uvoff + 4 * hbs, bl + 1))) {
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decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb(ctx, row, col + hbs, lflvl,
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yoff + 8 * hbs, uvoff + 4 * hbs, bl + 1);
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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if (!(res = decode_sb(ctx, row + hbs, col, lflvl,
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yoff, uvoff, bl + 1)))
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res = decode_sb(ctx, row + hbs, col + hbs, lflvl,
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decode_sb(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb(ctx, row + hbs, col + hbs, lflvl,
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yoff + 8 * hbs, uvoff + 4 * hbs, bl + 1);
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}
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}
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break;
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default:
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av_assert0(0);
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}
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} else if (vp56_rac_get_prob_branchy(&s->c, p[1])) {
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bp = PARTITION_SPLIT;
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if (!(res = decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1)))
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res = decode_sb(ctx, row, col + hbs, lflvl,
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decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb(ctx, row, col + hbs, lflvl,
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yoff + 8 * hbs, uvoff + 4 * hbs, bl + 1);
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} else {
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bp = PARTITION_H;
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res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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}
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} else if (row + hbs < s->rows) { // FIXME why not <=?
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if (vp56_rac_get_prob_branchy(&s->c, p[2])) {
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bp = PARTITION_SPLIT;
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if (!(res = decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1))) {
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decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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res = decode_sb(ctx, row + hbs, col, lflvl,
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yoff, uvoff, bl + 1);
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}
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decode_sb(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
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} else {
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bp = PARTITION_V;
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res = decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
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}
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} else {
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bp = PARTITION_SPLIT;
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res = decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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}
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s->counts.partition[bl][c][bp]++;
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return res;
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}
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static int decode_sb_mem(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
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static void decode_sb_mem(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
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ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
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{
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VP9Context *s = ctx->priv_data;
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@ -2942,51 +2925,43 @@ static int decode_sb_mem(AVCodecContext *ctx, int row, int col, struct VP9Filter
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ptrdiff_t hbs = 4 >> bl;
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AVFrame *f = s->frames[CUR_FRAME].tf.f;
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ptrdiff_t y_stride = f->linesize[0], uv_stride = f->linesize[1];
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int res;
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if (bl == BL_8X8) {
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av_assert2(b->bl == BL_8X8);
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res = decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp);
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decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp);
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} else if (s->b->bl == bl) {
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if ((res = decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp)) < 0)
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return res;
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decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp);
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if (b->bp == PARTITION_H && row + hbs < s->rows) {
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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res = decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, b->bl, b->bp);
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decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, b->bl, b->bp);
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} else if (b->bp == PARTITION_V && col + hbs < s->cols) {
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yoff += hbs * 8;
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uvoff += hbs * 4;
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res = decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, b->bl, b->bp);
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decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, b->bl, b->bp);
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}
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} else {
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if ((res = decode_sb_mem(ctx, row, col, lflvl, yoff, uvoff, bl + 1)) < 0)
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return res;
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decode_sb_mem(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
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if (col + hbs < s->cols) { // FIXME why not <=?
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if (row + hbs < s->rows) {
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if ((res = decode_sb_mem(ctx, row, col + hbs, lflvl, yoff + 8 * hbs,
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uvoff + 4 * hbs, bl + 1)) < 0)
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return res;
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decode_sb_mem(ctx, row, col + hbs, lflvl, yoff + 8 * hbs,
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uvoff + 4 * hbs, bl + 1);
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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if ((res = decode_sb_mem(ctx, row + hbs, col, lflvl, yoff,
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uvoff, bl + 1)) < 0)
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return res;
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res = decode_sb_mem(ctx, row + hbs, col + hbs, lflvl,
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decode_sb_mem(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb_mem(ctx, row + hbs, col + hbs, lflvl,
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yoff + 8 * hbs, uvoff + 4 * hbs, bl + 1);
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} else {
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yoff += hbs * 8;
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uvoff += hbs * 4;
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res = decode_sb_mem(ctx, row, col + hbs, lflvl, yoff, uvoff, bl + 1);
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decode_sb_mem(ctx, row, col + hbs, lflvl, yoff, uvoff, bl + 1);
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}
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} else if (row + hbs < s->rows) {
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yoff += hbs * 8 * y_stride;
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uvoff += hbs * 4 * uv_stride;
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res = decode_sb_mem(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
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decode_sb_mem(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
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}
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}
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return res;
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}
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static void loopfilter_sb(AVCodecContext *ctx, struct VP9Filter *lflvl,
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@ -3652,16 +3627,12 @@ static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
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}
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if (s->pass == 2) {
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res = decode_sb_mem(ctx, row, col, lflvl_ptr,
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decode_sb_mem(ctx, row, col, lflvl_ptr,
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yoff2, uvoff2, BL_64X64);
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} else {
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res = decode_sb(ctx, row, col, lflvl_ptr,
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decode_sb(ctx, row, col, lflvl_ptr,
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yoff2, uvoff2, BL_64X64);
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}
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if (res < 0) {
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ff_thread_report_progress(&s->frames[CUR_FRAME].tf, INT_MAX, 0);
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return res;
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}
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}
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if (s->pass != 2) {
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memcpy(&s->c_b[tile_col], &s->c, sizeof(s->c));
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