aa7335e610
The example encoder down-samples the input video frames a number of times with a down-sampling factor, and then encodes and outputs bitstreams with different resolutions. Support arbitrary down-sampling factor, and down-sampling factor can be different for each encoding level. For example, the encoder can be tested as follows. 1. Configure with multi-resolution encoding enabled: ../libvpx/configure --target=x86-linux-gcc --disable-codecs --enable-vp8 --enable-runtime_cpu_detect --enable-debug --disable-install-docs --enable-error-concealment --enable-multi-res-encoding 2. Run make 3. Encode: If input video is 1280x720, run: ./vp8_multi_resolution_encoder 1280 720 input.yuv 1.ivf 2.ivf 3.ivf 1 (output: 1.ivf(1280x720); 2.ivf(640x360); 3.ivf(320x180). The last parameter is set to 1/0 to show/not show PSNR.) 4. Decode: ./simple_decoder 1.ivf 1.yuv ./simple_decoder 2.ivf 2.yuv ./simple_decoder 3.ivf 3.yuv 5. View video: mplayer 1.yuv -demuxer rawvideo -rawvideo w=1280:h=720 -loop 0 -fps 30 mplayer 2.yuv -demuxer rawvideo -rawvideo w=640:h=360 -loop 0 -fps 30 mplayer 3.yuv -demuxer rawvideo -rawvideo w=320:h=180 -loop 0 -fps 30 The encoding parameters can be modified in vp8_multi_resolution_encoder.c, for example, target bitrate, frame rate... Modified API. John helped a lot with that. Thanks! Change-Id: I03be9a51167eddf94399f92d269599fb3f3d54f5
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef __INC_RDOPT_H
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#define __INC_RDOPT_H
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#define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
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static void insertsortmv(int arr[], int len)
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{
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int i, j, k;
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for ( i = 1 ; i <= len-1 ; i++ )
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{
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for ( j = 0 ; j < i ; j++ )
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{
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if ( arr[j] > arr[i] )
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{
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int temp;
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temp = arr[i];
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for ( k = i; k >j; k--)
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arr[k] = arr[k - 1] ;
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arr[j] = temp ;
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}
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}
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}
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}
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static void insertsortsad(int arr[],int idx[], int len)
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{
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int i, j, k;
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for ( i = 1 ; i <= len-1 ; i++ )
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{
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for ( j = 0 ; j < i ; j++ )
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{
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if ( arr[j] > arr[i] )
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{
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int temp, tempi;
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temp = arr[i];
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tempi = idx[i];
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for ( k = i; k >j; k--)
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{
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arr[k] = arr[k - 1] ;
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idx[k] = idx[k - 1];
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}
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arr[j] = temp ;
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idx[j] = tempi;
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}
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}
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}
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}
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extern void vp8_initialize_rd_consts(VP8_COMP *cpi, int Qvalue);
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extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra);
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extern void vp8_rd_pick_intra_mode(VP8_COMP *cpi, MACROBLOCK *x, int *rate);
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extern void vp8_mv_pred
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(
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VP8_COMP *cpi,
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MACROBLOCKD *xd,
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const MODE_INFO *here,
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int_mv *mvp,
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int refframe,
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int *ref_frame_sign_bias,
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int *sr,
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int near_sadidx[]
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);
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void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);
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#endif
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