h264: remove a pointless if()

!encoding is always true, we do not have a H.264 encoder

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index ec6c656333fba3d5c5ddb4ab8d03045e1b1b3bba..7a2fd69126e8659d464c17e7a9720315dd1637c9 100644 (file)
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1796,77 +1796,75 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
     int qscale = p == 0 ? s->qscale : h->chroma_qp[p - 1];
     block_offset += 16 * p;
     if (IS_INTRA4x4(mb_type)) {
-        if (simple || !s->encoding) {
-            if (IS_8x8DCT(mb_type)) {
-                if (transform_bypass) {
-                    idct_dc_add  =
-                    idct_add     = s->dsp.add_pixels8;
+        if (IS_8x8DCT(mb_type)) {
+            if (transform_bypass) {
+                idct_dc_add  =
+                idct_add     = s->dsp.add_pixels8;
+            } else {
+                idct_dc_add = h->h264dsp.h264_idct8_dc_add;
+                idct_add    = h->h264dsp.h264_idct8_add;
+            }
+            for (i = 0; i < 16; i += 4) {
+                uint8_t *const ptr = dest_y + block_offset[i];
+                const int dir      = h->intra4x4_pred_mode_cache[scan8[i]];
+                if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
+                    h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
                 } else {
-                    idct_dc_add = h->h264dsp.h264_idct8_dc_add;
-                    idct_add    = h->h264dsp.h264_idct8_add;
-                }
-                for (i = 0; i < 16; i += 4) {
-                    uint8_t *const ptr = dest_y + block_offset[i];
-                    const int dir      = h->intra4x4_pred_mode_cache[scan8[i]];
-                    if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
-                        h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                    } else {
-                        const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
-                        h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
-                                             (h->topright_samples_available << i) & 0x4000, linesize);
-                        if (nnz) {
-                            if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
-                                idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                            else
-                                idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                        }
+                    const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
+                    h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
+                                         (h->topright_samples_available << i) & 0x4000, linesize);
+                    if (nnz) {
+                        if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
+                            idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
+                        else
+                            idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
                     }
                 }
+            }
+        } else {
+            if (transform_bypass) {
+                idct_dc_add  =
+                    idct_add = s->dsp.add_pixels4;
             } else {
-                if (transform_bypass) {
-                    idct_dc_add  =
-                        idct_add = s->dsp.add_pixels4;
-                } else {
-                    idct_dc_add = h->h264dsp.h264_idct_dc_add;
-                    idct_add    = h->h264dsp.h264_idct_add;
-                }
-                for (i = 0; i < 16; i++) {
-                    uint8_t *const ptr = dest_y + block_offset[i];
-                    const int dir      = h->intra4x4_pred_mode_cache[scan8[i]];
+                idct_dc_add = h->h264dsp.h264_idct_dc_add;
+                idct_add    = h->h264dsp.h264_idct_add;
+            }
+            for (i = 0; i < 16; i++) {
+                uint8_t *const ptr = dest_y + block_offset[i];
+                const int dir      = h->intra4x4_pred_mode_cache[scan8[i]];
 
-                    if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
-                        h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                    } else {
-                        uint8_t *topright;
-                        int nnz, tr;
-                        uint64_t tr_high;
-                        if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
-                            const int topright_avail = (h->topright_samples_available << i) & 0x8000;
-                            assert(s->mb_y || linesize <= block_offset[i]);
-                            if (!topright_avail) {
-                                if (pixel_shift) {
-                                    tr_high  = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL;
-                                    topright = (uint8_t *)&tr_high;
-                                } else {
-                                    tr       = ptr[3 - linesize] * 0x01010101u;
-                                    topright = (uint8_t *)&tr;
-                                }
-                            } else
-                                topright = ptr + (4 << pixel_shift) - linesize;
+                if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
+                    h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
+                } else {
+                    uint8_t *topright;
+                    int nnz, tr;
+                    uint64_t tr_high;
+                    if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
+                        const int topright_avail = (h->topright_samples_available << i) & 0x8000;
+                        assert(s->mb_y || linesize <= block_offset[i]);
+                        if (!topright_avail) {
+                            if (pixel_shift) {
+                                tr_high  = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL;
+                                topright = (uint8_t *)&tr_high;
+                            } else {
+                                tr       = ptr[3 - linesize] * 0x01010101u;
+                                topright = (uint8_t *)&tr;
+                            }
                         } else
-                            topright = NULL;
-
-                        h->hpc.pred4x4[dir](ptr, topright, linesize);
-                        nnz = h->non_zero_count_cache[scan8[i + p * 16]];
-                        if (nnz) {
-                            if (is_h264) {
-                                if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
-                                    idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                                else
-                                    idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
-                            } else if (CONFIG_SVQ3_DECODER)
-                                ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0);
-                        }
+                            topright = ptr + (4 << pixel_shift) - linesize;
+                    } else
+                        topright = NULL;
+
+                    h->hpc.pred4x4[dir](ptr, topright, linesize);
+                    nnz = h->non_zero_count_cache[scan8[i + p * 16]];
+                    if (nnz) {
+                        if (is_h264) {
+                            if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
+                                idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
+                            else
+                                idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
+                        } else if (CONFIG_SVQ3_DECODER)
+                            ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0);
                     }
                 }
             }