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comparison: media/libvpx/vp8/common/invtrans.h
media/libvpx/vp8/common/invtrans.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:e502a6654cc4 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 | |
| 12 #ifndef __INC_INVTRANS_H | |
| 13 #define __INC_INVTRANS_H | |
| 14 | |
| 15 #include "vpx_config.h" | |
| 16 #include "vp8_rtcd.h" | |
| 17 #include "blockd.h" | |
| 18 #include "onyxc_int.h" | |
| 19 | |
| 20 #if CONFIG_MULTITHREAD | |
| 21 #include "vpx_mem/vpx_mem.h" | |
| 22 #endif | |
| 23 | |
| 24 static void eob_adjust(char *eobs, short *diff) | |
| 25 { | |
| 26 /* eob adjust.... the idct can only skip if both the dc and eob are zero */ | |
| 27 int js; | |
| 28 for(js = 0; js < 16; js++) | |
| 29 { | |
| 30 if((eobs[js] == 0) && (diff[0] != 0)) | |
| 31 eobs[js]++; | |
| 32 diff+=16; | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 static void vp8_inverse_transform_mby(MACROBLOCKD *xd) | |
| 37 { | |
| 38 short *DQC = xd->dequant_y1; | |
| 39 | |
| 40 if (xd->mode_info_context->mbmi.mode != SPLITMV) | |
| 41 { | |
| 42 /* do 2nd order transform on the dc block */ | |
| 43 if (xd->eobs[24] > 1) | |
| 44 { | |
| 45 vp8_short_inv_walsh4x4 | |
| 46 (&xd->block[24].dqcoeff[0], xd->qcoeff); | |
| 47 } | |
| 48 else | |
| 49 { | |
| 50 vp8_short_inv_walsh4x4_1 | |
| 51 (&xd->block[24].dqcoeff[0], xd->qcoeff); | |
| 52 } | |
| 53 eob_adjust(xd->eobs, xd->qcoeff); | |
| 54 | |
| 55 DQC = xd->dequant_y1_dc; | |
| 56 } | |
| 57 vp8_dequant_idct_add_y_block | |
| 58 (xd->qcoeff, DQC, | |
| 59 xd->dst.y_buffer, | |
| 60 xd->dst.y_stride, xd->eobs); | |
| 61 } | |
| 62 #endif |
