973 lines
32 KiB
C
Executable File
973 lines
32 KiB
C
Executable File
/*
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* Copyright (c) 2008-2016 Allwinner Technology Co. Ltd.
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* All rights reserved.
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*
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* File : tmetadatatriever.c
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* Description : tmetadatatriever for Linux,
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* get the video thumbnails
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* History :
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*
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*/
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#define LOG_TAG "tmetadataretriever"
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#include "tlog.h"
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#include "tmetadataretriever.h"
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#include <errno.h>
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#include "memoryAdapter.h"
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#include "iniparserapi.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <inttypes.h>
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#define SAVE_YUV 0
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#define SAVE_RGB 0
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#define MAX_PACKET_COUNT_TO_GET_A_FRAME 4096 /* process 4096 packets to get a frame at maximum. */
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#define MAX_TIME_TO_GET_A_FRAME 5000000 /* use 5 seconds to get a frame at maximum. */
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typedef struct TRetrieverContext
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{
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CdxDataSourceT mSource;
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CdxMediaInfoT mMediaInfo;
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CdxParserT* mParser;
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CdxStreamT* mStream;
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VideoDecoder* mVideoDecoder;
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VideoFrame mVideoFrame;
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struct ScMemOpsS * memops;
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int mScaleDownEn;
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int mHorizonScaleDownRatio;
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int mVerticalScaleDownRatio;
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int mDecodedPixFormat;
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int mOutputDataType;
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}TRetrieverContext;
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static int64_t GetSysTime()
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{
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int64_t time;
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struct timeval t;
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gettimeofday(&t, NULL);
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time = (int64_t)t.tv_sec * 1000000;
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time += t.tv_usec;
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return time;
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}
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#if SAVE_RGB
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//-------------------------------------------------------------------
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/*
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位图文件的组成
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结构名称 符 号
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位图文件头 (bitmap-file header) BITMAPFILEHEADER bmfh
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位图信息头 (bitmap-information header) BITMAPINFOHEADER bmih
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彩色表 (color table) RGBQUAD aColors[]
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图象数据阵列字节 BYTE aBitmapBits[]
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*/
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typedef struct bmp_header
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{
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short twobyte ;//两个字节，用来保证下面成员紧凑排列，这两个字符不能写到文件中
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//14B
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char bfType[2] ;//!文件的类型,该值必需是0x4D42，也就是字符'BM'
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unsigned int bfSize ;//!说明文件的大小，用字节为单位
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unsigned int bfReserved1;//保留，必须设置为0
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unsigned int bfOffBits ;//!说明从文件头开始到实际的图象数据之间的字节的偏移量，这里为14B+sizeof(BMPINFO)
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}BMPHEADER;
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typedef struct bmp_info
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{
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//40B
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unsigned int biSize ;//!BMPINFO结构所需要的字数
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int biWidth ;//!图象的宽度，以象素为单位
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int biHeight ;//!图象的宽度，以象素为单位,如果该值是正数，
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//说明图像是倒向的，如果该值是负数，则是正向的
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unsigned short biPlanes ;//!目标设备说明位面数，其值将总是被设为1
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unsigned short biBitCount ;//!比特数/象素，其值为1、4、8、16、24、或32
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unsigned int biCompression ;//说明图象数据压缩的类型
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#define BI_RGB 0L //没有压缩
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#define BI_RLE8 1L //每个象素8比特的RLE压缩编码，压缩格式由2字节组成（重复象素计数和颜色索引）；
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#define BI_RLE4 2L //每个象素4比特的RLE压缩编码，压缩格式由2字节组成
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#define BI_BITFIELDS 3L //每个象素的比特由指定的掩码决定。
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unsigned int biSizeImage ;//图象的大小，以字节为单位。当用BI_RGB格式时，可设置为0
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int biXPelsPerMeter ;//水平分辨率，用象素/米表示
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int biYPelsPerMeter ;//垂直分辨率，用象素/米表示
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unsigned int biClrUsed ;//位图实际使用的彩色表中的颜色索引数（设为0的话，则说明使用所有调色板项）
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unsigned int biClrImportant ;//对图象显示有重要影响的颜色索引的数目，如果是0，表示都重要。
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}BMPINFO;
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typedef struct tagRGBQUAD
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{
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unsigned char rgbBlue;
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unsigned char rgbGreen;
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unsigned char rgbRed;
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unsigned char rgbReserved;
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} RGBQUAD;
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typedef struct tagBITMAPINFO
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{
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BMPINFO bmiHeader;
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//RGBQUAD bmiColors[1];
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unsigned int rgb[3];
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} BITMAPINFO;
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static int get_rgb565_header(int w, int h, BMPHEADER * head, BITMAPINFO * info)
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{
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int size = 0;
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if (head && info)
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{
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size = w * h * 2;
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memset(head, 0, sizeof(* head));
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memset(info, 0, sizeof(* info));
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head->bfType[0] = 'B';
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head->bfType[1] = 'M';
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head->bfOffBits = 14 + sizeof(* info);
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head->bfSize = head->bfOffBits + size;
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head->bfSize = (head->bfSize + 3) & ~3;
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size = head->bfSize - head->bfOffBits;
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info->bmiHeader.biSize = sizeof(info->bmiHeader);
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info->bmiHeader.biWidth = w;
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info->bmiHeader.biHeight = -h;
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info->bmiHeader.biPlanes = 1;
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info->bmiHeader.biBitCount = 16;
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info->bmiHeader.biCompression = BI_BITFIELDS;
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info->bmiHeader.biSizeImage = size;
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info->rgb[0] = 0xF800;
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info->rgb[1] = 0x07E0;
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info->rgb[2] = 0x001F;
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TLOGD("rgb565:%dbit,%d*%d,%d\n", info->bmiHeader.biBitCount, w, h, head->bfSize);
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}
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return size;
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}
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static int save_bmp_rgb565(FILE* fp, int width, int height, unsigned char* pData)
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{
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int success = 0;
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int size = 0;
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BMPHEADER head;
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BITMAPINFO info;
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size = get_rgb565_header(width, height, &head, &info);
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if(size > 0)
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{
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fwrite(head.bfType,1,2,fp);
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fwrite(&head.bfSize,1,4,fp);
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fwrite(&head.bfReserved1,1,4,fp);
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fwrite(&head.bfOffBits,1,4,fp);
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fwrite(&info,1,sizeof(info), fp);
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fwrite(pData,1,size, fp);
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success = 1;
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}
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TLOGD("*****in save_bmp_rgb565:success=%d", success);
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return success;
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}
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#endif
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static int saveYuvPic(TRetrieverContext* retrieverContext,VideoFrame* videoFrame){
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if(retrieverContext == NULL || videoFrame == NULL ||videoFrame->mYuvData== NULL){
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TLOGE("retrieverContext or imgFrame or imgFrame->mData is null,saveYuvPic err");
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return -1;
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}
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char path[50];
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char acturalWidth[10];
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char acturalHeight[10];
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sprintf(acturalWidth,"%u",videoFrame->mDisplayWidth);
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sprintf(acturalHeight,"%u",videoFrame->mDisplayHeight);
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TLOGD("acturalWidth = %s,height = %s",acturalWidth,acturalHeight);
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strcpy(path,"/tmp/save_");
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strcat(path,acturalWidth);
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strcat(path,"_");
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strcat(path,acturalHeight);
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switch (retrieverContext->mOutputDataType)
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{
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case TmetadataRetrieverOutputDataNV21:
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strcat(path,"_nv21.dat");
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break;
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case TmetadataRetrieverOutputDataYV12:
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strcat(path,"_yv12.dat");
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break;
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default:
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TLOGW("the retrieverContext->mOutputDataType = %d,which is not support,use the default:%d",retrieverContext->mOutputDataType,TmetadataRetrieverOutputDataNV21);
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strcat(path,"_nv21.dat");
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break;
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}
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FILE* savaYuvFd = fopen(path, "wb");
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if(savaYuvFd==NULL){
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TLOGE("fopen save.yuv fail****");
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TLOGE("err str: %s",strerror(errno));
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return -1;
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}else{
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fseek(savaYuvFd,0,SEEK_SET);
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int write_ret = fwrite(videoFrame->mYuvData, 1, videoFrame->mYuvSize, savaYuvFd);
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if(write_ret <= 0){
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TLOGE("yuv write error,err str: %s",strerror(errno));
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fclose(savaYuvFd);
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savaYuvFd = NULL;
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return -1;
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}
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fclose(savaYuvFd);
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savaYuvFd = NULL;
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}
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TLOGD("save yuv data successfully,path = %s",path);
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return 0;
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}
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static int transformPicture(struct ScMemOpsS *memOps,
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VideoPicture * pPicture,
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VideoFrame* pVideoFrame)
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{
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unsigned short* pDst;
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unsigned char* pSrcY;
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unsigned char* pSrcU;
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unsigned char* pSrcV;
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int y;
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int x;
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unsigned char* pClipTable;
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unsigned char* pClip;
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static const int nClipMin = -278;
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static const int nClipMax = 535;
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if((pPicture->ePixelFormat!= PIXEL_FORMAT_YV12) &&
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(pPicture->ePixelFormat!= PIXEL_FORMAT_YUV_PLANER_420))
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{
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TLOGE("source pixel format is not YV12, quit.");
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return -1;
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}
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//* initialize the clip table.
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pClipTable = (unsigned char*)malloc(nClipMax - nClipMin + 1);
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if(pClipTable == NULL)
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{
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TLOGE("can not allocate memory for the clip table, quit.");
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return -1;
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}
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for(x=nClipMin; x<=nClipMax; x++)
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{
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pClipTable[x-nClipMin] = (x<0) ? 0 : (x>255) ? 255 : x;
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}
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pClip = &pClipTable[-nClipMin];
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//* flush cache.
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CdcMemFlushCache(memOps, pPicture->pData0, pPicture->nLineStride*pPicture->nHeight);
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CdcMemFlushCache(memOps, pPicture->pData1, pPicture->nLineStride*pPicture->nHeight/4);
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CdcMemFlushCache(memOps, pPicture->pData2, pPicture->nLineStride*pPicture->nHeight/4);
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//* set pointers.
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pDst = (unsigned short*)pVideoFrame->mRGB565Data;
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pSrcY = (unsigned char*)pPicture->pData0 + pPicture->nTopOffset * \
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pPicture->nLineStride + pPicture->nLeftOffset;
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if(pPicture->ePixelFormat== PIXEL_FORMAT_YV12)
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{
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pSrcV = (unsigned char*)pPicture->pData1 + (pPicture->nTopOffset/2) * \
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(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
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pSrcU = (unsigned char*)pPicture->pData2 + (pPicture->nTopOffset/2) * \
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(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
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}
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else
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{
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pSrcU = (unsigned char*)pPicture->pData1 + (pPicture->nTopOffset/2) * \
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(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
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pSrcV = (unsigned char*)pPicture->pData2 + (pPicture->nTopOffset/2) * \
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(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
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}
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for(y = 0; y < (int)pVideoFrame->mDisplayHeight; ++y)
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{
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for(x = 0; x < (int)pVideoFrame->mDisplayWidth; x += 2)
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{
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// B = 1.164 * (Y - 16) + 2.018 * (U - 128)
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// G = 1.164 * (Y - 16) - 0.813 * (V - 128) - 0.391 * (U - 128)
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// R = 1.164 * (Y - 16) + 1.596 * (V - 128)
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// B = 298/256 * (Y - 16) + 517/256 * (U - 128)
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// G = .................. - 208/256 * (V - 128) - 100/256 * (U - 128)
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// R = .................. + 409/256 * (V - 128)
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// min_B = (298 * (- 16) + 517 * (- 128)) / 256 = -277
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// min_G = (298 * (- 16) - 208 * (255 - 128) - 100 * (255 - 128)) / 256 = -172
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// min_R = (298 * (- 16) + 409 * (- 128)) / 256 = -223
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// max_B = (298 * (255 - 16) + 517 * (255 - 128)) / 256 = 534
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// max_G = (298 * (255 - 16) - 208 * (- 128) - 100 * (- 128)) / 256 = 432
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// max_R = (298 * (255 - 16) + 409 * (255 - 128)) / 256 = 481
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// clip range -278 .. 535
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signed y1 = (signed)pSrcY[x] - 16;
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signed y2 = (signed)pSrcY[x + 1] - 16;
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signed u = (signed)pSrcU[x / 2] - 128;
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signed v = (signed)pSrcV[x / 2] - 128;
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signed u_b = u * 517;
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signed u_g = -u * 100;
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signed v_g = -v * 208;
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signed v_r = v * 409;
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signed tmp1 = y1 * 298;
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signed b1 = (tmp1 + u_b) / 256;
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signed g1 = (tmp1 + v_g + u_g) / 256;
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signed r1 = (tmp1 + v_r) / 256;
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signed tmp2 = y2 * 298;
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signed b2 = (tmp2 + u_b) / 256;
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signed g2 = (tmp2 + v_g + u_g) / 256;
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signed r2 = (tmp2 + v_r) / 256;
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unsigned int rgb1 = ((pClip[r1] >> 3) << 11) |
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((pClip[g1] >> 2) << 5) |
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(pClip[b1] >> 3);
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unsigned int rgb2 = ((pClip[r2] >> 3) << 11) |
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((pClip[g2] >> 2) << 5) |
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(pClip[b2] >> 3);
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*(unsigned int *)(&pDst[x]) = (rgb2 << 16) | rgb1;
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}
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pSrcY += pVideoFrame->mDisplayWidth;
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if(y & 1)
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{
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pSrcU += pVideoFrame->mDisplayWidth / 2;
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pSrcV += pVideoFrame->mDisplayWidth / 2;
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}
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pDst += pVideoFrame->mDisplayWidth;
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}
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free(pClipTable);
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#if SAVE_RGB
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FILE* outFp = fopen("/tmp/rgb.bmp", "wb");
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if(outFp != NULL)
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{
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TLOGD("************save_bmp_rgb565");
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save_bmp_rgb565(outFp, pVideoFrame->mDisplayWidth, pVideoFrame->mDisplayHeight, pVideoFrame->mRGB565Data);
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fclose(outFp);
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}
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#endif
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||
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||
return 0;
|
||
}
|
||
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static void clear(TRetriever* v)
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||
{
|
||
TRetrieverContext* p;
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p = (TRetrieverContext*)v;
|
||
|
||
if(p->mParser)
|
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{
|
||
CdxParserForceStop(p->mParser); //* to prevend parser from blocking at a network io.
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||
CdxParserClose(p->mParser);
|
||
p->mParser = NULL;
|
||
p->mStream = NULL;
|
||
}
|
||
else if(p->mStream)
|
||
{
|
||
CdxStreamForceStop(p->mStream);
|
||
CdxStreamClose(p->mStream);
|
||
p->mStream = NULL;
|
||
}
|
||
|
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if(p->mVideoDecoder != NULL)
|
||
{
|
||
DestroyVideoDecoder(p->mVideoDecoder);
|
||
p->mVideoDecoder = NULL;
|
||
}
|
||
|
||
if(p->mSource.uri)
|
||
{
|
||
free(p->mSource.uri);
|
||
}
|
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memset(&p->mMediaInfo, 0, sizeof(CdxMediaInfoT));
|
||
|
||
if(p->mVideoFrame.mRGB565Data)
|
||
{
|
||
free(p->mVideoFrame.mRGB565Data);
|
||
p->mVideoFrame.mRGB565Data = NULL;
|
||
}
|
||
if (p->mVideoFrame.mYuvData) {
|
||
free(p->mVideoFrame.mYuvData);
|
||
p->mVideoFrame.mYuvData = NULL;
|
||
}
|
||
memset(&p->mVideoFrame, 0x00, sizeof(VideoFrame));
|
||
}
|
||
|
||
TRetriever* TRetrieverCreate()
|
||
{
|
||
TRetrieverContext* p;
|
||
p = (TRetrieverContext*)malloc(sizeof(TRetrieverContext));
|
||
if(!p)
|
||
{
|
||
TLOGE("TRetrieverCreate fail");
|
||
return NULL;
|
||
}
|
||
memset(p, 0, sizeof(TRetrieverContext));
|
||
|
||
memset(&p->mSource, 0, sizeof(CdxDataSourceT));
|
||
|
||
p->memops = MemAdapterGetOpsS();
|
||
if(p->memops == NULL)
|
||
{
|
||
TLOGE("MemAdapterGetOpsS fail");
|
||
free(p);
|
||
return NULL;
|
||
}
|
||
CdcMemOpen(p->memops);
|
||
|
||
return (TRetriever*)p;
|
||
}
|
||
|
||
int TRetrieverDestory(TRetriever* v)
|
||
{
|
||
TRetrieverContext* p;
|
||
p = (TRetrieverContext*)v;
|
||
clear(v);
|
||
CdcMemClose(p->memops);
|
||
free(p);
|
||
return 0;
|
||
}
|
||
|
||
static int retrieverSetDataSource(TRetrieverContext* p, const char* pUrl)
|
||
{
|
||
if(strstr(pUrl, "://") != NULL)
|
||
{
|
||
p->mSource.uri = strdup(pUrl);
|
||
if(p->mSource.uri == NULL)
|
||
{
|
||
TLOGE("can not dump string of uri.");
|
||
return -1;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
p->mSource.uri = (char*)malloc(strlen(pUrl)+8);
|
||
if(p->mSource.uri == NULL)
|
||
{
|
||
TLOGE("can not dump string of uri.");
|
||
return -1;
|
||
}
|
||
sprintf(p->mSource.uri, "file://%s", pUrl);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int TRetrieverSetDataSource(TRetriever* v, const char* pUrl,TmetadataRetrieverScaleDownRatio scaleRatio,TmetadataRetrieverOutputDataType outputType)
|
||
{
|
||
int ret;
|
||
TRetrieverContext* p;
|
||
p = (TRetrieverContext*)v;
|
||
clear(v);
|
||
|
||
//1. set the datasource object.
|
||
ret = retrieverSetDataSource(p, pUrl);
|
||
if(ret < 0)
|
||
{
|
||
TLOGE("set datasource fail.");
|
||
return -1;
|
||
}
|
||
|
||
TLOGD("uri: %s", p->mSource.uri);
|
||
|
||
//2.create a stream
|
||
p->mStream = CdxStreamCreate(&p->mSource);
|
||
if(!p->mStream)
|
||
{
|
||
TLOGE("CdxStreamCreate fail.");
|
||
return -1;
|
||
}
|
||
ret = CdxStreamConnect(p->mStream);
|
||
if(ret < 0)
|
||
{
|
||
TLOGE("CdxStreamConnect fail ,ret = %d",ret);
|
||
CdxStreamClose(p->mStream);
|
||
p->mStream = NULL;
|
||
return -1;
|
||
}
|
||
|
||
//3.create a parser
|
||
p->mParser = CdxParserCreate(p->mStream, MUTIL_AUDIO);
|
||
if(!p->mParser)
|
||
{
|
||
TLOGE("parser creat fail.");
|
||
CdxStreamClose(p->mStream);
|
||
p->mStream = NULL;
|
||
return -1;
|
||
}
|
||
ret = CdxParserInit(p->mParser);
|
||
if(ret < 0)
|
||
{
|
||
TLOGE("CdxParserInit fail ,ret = %d",ret);
|
||
CdxParserClose(p->mParser);
|
||
p->mParser = NULL;
|
||
p->mStream = NULL;
|
||
return -1;
|
||
}
|
||
|
||
//4. get media info.
|
||
memset(&p->mMediaInfo, 0, sizeof(CdxMediaInfoT));
|
||
if(CdxParserGetMediaInfo(p->mParser, &p->mMediaInfo) == 0)
|
||
{
|
||
if (p->mParser->type == CDX_PARSER_TS ||
|
||
p->mParser->type == CDX_PARSER_BD ||
|
||
p->mParser->type == CDX_PARSER_HLS)
|
||
{
|
||
p->mMediaInfo.program[0].video[0].bIsFramePackage = 0; /* stream package,this will set to video decoder */
|
||
}
|
||
else
|
||
{
|
||
p->mMediaInfo.program[0].video[0].bIsFramePackage = 1; /* frame package,this will set to video decoder*/
|
||
}
|
||
}
|
||
|
||
//5.store the scale ratio
|
||
switch (scaleRatio)
|
||
{
|
||
case TMETADATA_RETRIEVER_SCALE_DOWN_1:
|
||
p->mScaleDownEn = 0;
|
||
p->mHorizonScaleDownRatio = 0;
|
||
p->mVerticalScaleDownRatio = 0;
|
||
break;
|
||
case TMETADATA_RETRIEVER_SCALE_DOWN_2:
|
||
p->mScaleDownEn = 1;
|
||
p->mHorizonScaleDownRatio = 1;
|
||
p->mVerticalScaleDownRatio = 1;
|
||
break;
|
||
case TMETADATA_RETRIEVER_SCALE_DOWN_4:
|
||
p->mScaleDownEn = 1;
|
||
p->mHorizonScaleDownRatio = 2;
|
||
p->mVerticalScaleDownRatio = 2;
|
||
break;
|
||
case TMETADATA_RETRIEVER_SCALE_DOWN_8:
|
||
p->mScaleDownEn = 1;
|
||
p->mHorizonScaleDownRatio = 3;
|
||
p->mVerticalScaleDownRatio = 3;
|
||
break;
|
||
default:
|
||
TLOGW("the scalRatio = %d,which is not support,use the default",scaleRatio);
|
||
p->mScaleDownEn = 0;
|
||
p->mHorizonScaleDownRatio = 0;
|
||
p->mVerticalScaleDownRatio = 0;
|
||
break;
|
||
}
|
||
|
||
//store the output data type and set the decoded pixformat
|
||
p->mOutputDataType = outputType;
|
||
switch (outputType)
|
||
{
|
||
case TmetadataRetrieverOutputDataNV21:
|
||
p->mDecodedPixFormat = PIXEL_FORMAT_NV21;
|
||
break;
|
||
case TmetadataRetrieverOutputDataYV12:
|
||
p->mDecodedPixFormat = PIXEL_FORMAT_YV12;
|
||
break;
|
||
case TmetadataRetrieverOutputDataRGB565:
|
||
p->mDecodedPixFormat = PIXEL_FORMAT_YV12;
|
||
break;
|
||
default:
|
||
TLOGW("the outputType = %d,which is not support,use the default:%d",outputType,TmetadataRetrieverOutputDataNV21);
|
||
p->mOutputDataType = TmetadataRetrieverOutputDataNV21;
|
||
p->mDecodedPixFormat = PIXEL_FORMAT_NV21;
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
VideoFrame *TRetrieverGetFrameAtTime(TRetriever* v, int64_t timeUs)
|
||
{
|
||
VideoPicture* pPicture;
|
||
int bDone;
|
||
int bSuccess;
|
||
int bHasVideo;
|
||
|
||
VConfig vconfig;
|
||
CdxPacketT packet;
|
||
int ret;
|
||
int nPacketCount;
|
||
int64_t nStartTime;
|
||
int64_t nTimePassed;
|
||
|
||
TRetrieverContext* p;
|
||
p = (TRetrieverContext*)v;
|
||
|
||
bDone = 0;
|
||
bSuccess = 0;
|
||
bHasVideo = 0;
|
||
memset(&vconfig, 0, sizeof(VConfig));
|
||
|
||
//* 1. check whether there is a video stream.
|
||
if(p->mMediaInfo.programIndex >= 0 && p->mMediaInfo.programNum >= p->mMediaInfo.programIndex)
|
||
{
|
||
if(p->mMediaInfo.program[p->mMediaInfo.programIndex].videoNum > 0)
|
||
bHasVideo = 1;
|
||
}
|
||
if(!bHasVideo)
|
||
{
|
||
TLOGE("media file do not contain a video stream, getFrameAtTime() return fail.");
|
||
return NULL;
|
||
}
|
||
|
||
//* 2. create a video decoder.
|
||
if(p->mVideoDecoder == NULL)
|
||
{
|
||
p->mVideoDecoder = CreateVideoDecoder();
|
||
//* use decoder to capture thumbnail, decoder use less memory in this mode.
|
||
vconfig.bThumbnailMode = 1;
|
||
//set the decoded output pixel format
|
||
vconfig.eOutputPixelFormat = p->mDecodedPixFormat;
|
||
//* no need to decode two picture when decoding a thumbnail picture.
|
||
vconfig.bDisable3D = 1;
|
||
//* set align stride to 16 as defualt
|
||
vconfig.nAlignStride = 16;
|
||
//* set this flag when the parser can give this info,
|
||
//* mov files recorded by iphone or android phone
|
||
//* conains this info.
|
||
|
||
//* set the rotation
|
||
int nRotateDegree;
|
||
int nRotation = atoi((const char*)p->mMediaInfo.rotate);
|
||
TLOGD("nRotation = %d",nRotation);
|
||
|
||
if(nRotation == 0)
|
||
nRotateDegree = 0;
|
||
else if(nRotation == 90)
|
||
nRotateDegree = 1;
|
||
else if(nRotation == 180)
|
||
nRotateDegree = 2;
|
||
else if(nRotation == 270)
|
||
nRotateDegree = 3;
|
||
else
|
||
nRotateDegree = 0;
|
||
|
||
if(nRotateDegree != 0)
|
||
{
|
||
vconfig.bRotationEn = 1;
|
||
vconfig.nRotateDegree = nRotateDegree;
|
||
}
|
||
else
|
||
{
|
||
vconfig.bRotationEn = 0;
|
||
vconfig.nRotateDegree = 0;
|
||
}
|
||
|
||
VideoStreamInfo *videoInfo =
|
||
p->mMediaInfo.program[p->mMediaInfo.programIndex].video;
|
||
vconfig.bScaleDownEn = p->mScaleDownEn;
|
||
vconfig.nHorizonScaleDownRatio = p->mHorizonScaleDownRatio;
|
||
vconfig.nVerticalScaleDownRatio = p->mVerticalScaleDownRatio;
|
||
|
||
//* set the vbv buffer size
|
||
vconfig.nVbvBufferSize = 4*1024*1024;
|
||
|
||
vconfig.nDeInterlaceHoldingFrameBufferNum = 0;//GetConfigParamterInt("pic_4di_num", 2);
|
||
vconfig.nDisplayHoldingFrameBufferNum = 0;
|
||
vconfig.nRotateHoldingFrameBufferNum = GetConfigParamterInt("pic_4rotate_num", 0);
|
||
vconfig.nDecodeSmoothFrameBufferNum = GetConfigParamterInt("pic_4smooth_num", 3);
|
||
|
||
vconfig.memops = p->memops;
|
||
if(InitializeVideoDecoder(p->mVideoDecoder,
|
||
videoInfo, &vconfig) != 0)
|
||
{
|
||
TLOGE("initialize video decoder fail.");
|
||
return NULL;
|
||
}
|
||
}
|
||
if(timeUs < 0 || p->mMediaInfo.program[p->mMediaInfo.programIndex].duration < timeUs/1000)
|
||
{
|
||
timeUs = (p->mMediaInfo.program[p->mMediaInfo.programIndex].duration >> 1) * 1000;
|
||
}
|
||
//* 3. seek parser to the specific position.
|
||
if(p->mMediaInfo.bSeekable && timeUs > 0 &&
|
||
timeUs < ((int64_t)p->mMediaInfo.program[p->mMediaInfo.programIndex].duration*1000))
|
||
{
|
||
if(CdxParserSeekTo(p->mParser, timeUs,0) != 0)
|
||
{
|
||
TLOGE("can not seek media file to the specific time %" PRId64 " us.", timeUs);
|
||
return NULL;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
TLOGW("media file do not support seek operation, get frame from the begin.");
|
||
}
|
||
|
||
//* 4. loop to decode a picture.
|
||
nPacketCount = 0;
|
||
nStartTime = GetSysTime();
|
||
do
|
||
{
|
||
//* 4.1 prefetch packet type and packet data size.
|
||
packet.flags = 0;
|
||
if(CdxParserPrefetch(p->mParser, &packet) != 0)
|
||
{
|
||
//* prefetch fail, may be file end reached.
|
||
TLOGE("prefetch fail,may be file end reached");
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
|
||
//* 4.2 feed data to the video decoder.
|
||
if(packet.type == CDX_MEDIA_VIDEO && (packet.flags&MINOR_STREAM)==0)
|
||
{
|
||
ret = RequestVideoStreamBuffer(p->mVideoDecoder,
|
||
packet.length,
|
||
(char**)&packet.buf,
|
||
&packet.buflen,
|
||
(char**)&packet.ringBuf,
|
||
&packet.ringBufLen,
|
||
0);
|
||
|
||
if(ret==0 && (packet.buflen+packet.ringBufLen)>=packet.length)
|
||
{
|
||
nPacketCount++;
|
||
if(CdxParserRead(p->mParser, &packet) == 0)
|
||
{
|
||
VideoStreamDataInfo dataInfo;
|
||
dataInfo.pData = (char*)packet.buf;
|
||
dataInfo.nLength = packet.length;
|
||
dataInfo.nPts = packet.pts;
|
||
dataInfo.nPcr = -1;
|
||
dataInfo.bIsFirstPart = 1;
|
||
dataInfo.bIsLastPart = 1;
|
||
dataInfo.nStreamIndex = 0;
|
||
SubmitVideoStreamData(p->mVideoDecoder, &dataInfo, 0);
|
||
}
|
||
else
|
||
{
|
||
//* read data fail, may be data error.
|
||
TLOGE("read packet from parser fail.");
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
//* no buffer, may be the decoder is full of stream.
|
||
TLOGW("waiting for stream buffer.");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
//* only process the major video stream.
|
||
//* allocate a buffer to read uncare media data and skip it.
|
||
packet.buf = malloc(packet.length);
|
||
if(packet.buf != NULL)
|
||
{
|
||
nPacketCount++;
|
||
packet.buflen = packet.length;
|
||
packet.ringBuf = NULL;
|
||
packet.ringBufLen = 0;
|
||
if(CdxParserRead(p->mParser, &packet) == 0)
|
||
{
|
||
free(packet.buf);
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
free(packet.buf);
|
||
//* read data fail, may be data error.
|
||
TLOGE("read packet from parser fail.");
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
TLOGE("can not allocate buffer for none video packet.");
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
}
|
||
|
||
//* 4.3 decode stream.
|
||
ret = DecodeVideoStream(p->mVideoDecoder, 0 /*eos*/,
|
||
0/*key frame only*/, 0/*drop b frame*/, 0/*current time*/);
|
||
TLOGD("DecodeVideoStream return value = %d",ret);
|
||
if(ret < 0)
|
||
{
|
||
TLOGE("decode stream return fail.");
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
else if(ret == VDECODE_RESULT_RESOLUTION_CHANGE)
|
||
{
|
||
TLOGD("video resolution changed , ReopenVideoEngine");
|
||
ReopenVideoEngine(p->mVideoDecoder, &vconfig,
|
||
&p->mMediaInfo.program[p->mMediaInfo.programIndex].video[0]);
|
||
continue;
|
||
}
|
||
|
||
//* 4.4 try to get a picture from the decoder.
|
||
if(ret == VDECODE_RESULT_FRAME_DECODED || ret == VDECODE_RESULT_KEYFRAME_DECODED)
|
||
{
|
||
pPicture = RequestPicture(p->mVideoDecoder, 0/*the major stream*/);
|
||
if(pPicture != NULL)
|
||
{
|
||
bDone = 1;
|
||
bSuccess = 1;
|
||
break;
|
||
}
|
||
}
|
||
|
||
//* check whether cost too long time or process too much packets.
|
||
nTimePassed = GetSysTime() - nStartTime;
|
||
if(nTimePassed > MAX_TIME_TO_GET_A_FRAME || nTimePassed < 0)
|
||
{
|
||
TLOGW("cost more than %d us but can not get a picture, quit.", MAX_TIME_TO_GET_A_FRAME);
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
if(nPacketCount > MAX_PACKET_COUNT_TO_GET_A_FRAME)
|
||
{
|
||
TLOGW("process more than %d packets but can not get a picture, quit.",
|
||
MAX_PACKET_COUNT_TO_GET_A_FRAME);
|
||
bDone = 1;
|
||
bSuccess = 0;
|
||
break;
|
||
}
|
||
}while(!bDone);
|
||
|
||
//* 5. transform the picture if suceess to get a picture.
|
||
if(bSuccess)
|
||
{
|
||
//* let the width and height is multiple of 2, for convinient of yuv to rgb565 converting.
|
||
|
||
if(pPicture->nLeftOffset & 1)
|
||
pPicture->nLeftOffset += 1;
|
||
if(pPicture->nRightOffset & 1)
|
||
pPicture->nRightOffset -= 1;
|
||
if(pPicture->nTopOffset & 1)
|
||
pPicture->nTopOffset += 1;
|
||
if(pPicture->nBottomOffset & 1)
|
||
pPicture->nBottomOffset -= 1;
|
||
p->mVideoFrame.mRotationAngle = 0;
|
||
|
||
if(p->mOutputDataType == TmetadataRetrieverOutputDataNV21 || p->mOutputDataType == TmetadataRetrieverOutputDataYV12){
|
||
if(p->mVideoFrame.mYuvData != NULL){//if the mYuvData is not NULL,we should free the buffer which is malloc before
|
||
free(p->mVideoFrame.mYuvData);
|
||
memset(&p->mVideoFrame, 0x00, sizeof(VideoFrame));
|
||
}
|
||
p->mVideoFrame.mWidth = pPicture->nWidth;
|
||
p->mVideoFrame.mHeight = pPicture->nHeight;
|
||
p->mVideoFrame.mDisplayWidth = pPicture->nRightOffset-pPicture->nLeftOffset;
|
||
p->mVideoFrame.mDisplayHeight = pPicture->nBottomOffset-pPicture->nTopOffset;
|
||
p->mVideoFrame.mYuvSize = p->mVideoFrame.mDisplayWidth*p->mVideoFrame.mDisplayHeight*3/2;
|
||
p->mVideoFrame.mYuvData = (unsigned char*)malloc(p->mVideoFrame.mYuvSize);
|
||
if(p->mVideoFrame.mYuvData == NULL)
|
||
{
|
||
TLOGE("mVideoFrame.mYuvData malloc fail");
|
||
return NULL;
|
||
}
|
||
/* flush cache*/
|
||
if(p->mOutputDataType == TmetadataRetrieverOutputDataYV12){
|
||
CdcMemFlushCache(p->memops, pPicture->pData0, pPicture->nWidth*pPicture->nHeight);
|
||
CdcMemFlushCache(p->memops, pPicture->pData1, pPicture->nHeight*pPicture->nHeight/4);
|
||
CdcMemFlushCache(p->memops, pPicture->pData2, pPicture->nHeight*pPicture->nHeight/4);
|
||
/**copy actural picture data to imgframe**/
|
||
memcpy(p->mVideoFrame.mYuvData,pPicture->pData0,p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight);
|
||
memcpy(p->mVideoFrame.mYuvData+p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight,pPicture->pData1,p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight/4);
|
||
memcpy(p->mVideoFrame.mYuvData+p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight*5/4,pPicture->pData2,p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight/4);
|
||
}else{
|
||
CdcMemFlushCache(p->memops, pPicture->pData0, pPicture->nWidth*pPicture->nHeight);
|
||
CdcMemFlushCache(p->memops, pPicture->pData1, pPicture->nHeight*pPicture->nHeight/2);
|
||
/**copy actural picture data to imgframe**/
|
||
memcpy(p->mVideoFrame.mYuvData,pPicture->pData0,p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight);
|
||
memcpy(p->mVideoFrame.mYuvData+p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight,pPicture->pData1,p->mVideoFrame.mDisplayWidth *p->mVideoFrame.mDisplayHeight/2);
|
||
}
|
||
#if SAVE_YUV
|
||
saveYuvPic(p,&p->mVideoFrame);
|
||
#endif
|
||
}else if( p->mOutputDataType == TmetadataRetrieverOutputDataRGB565){
|
||
if(p->mVideoFrame.mRGB565Data != NULL){//if the mRGB565Data is not NULL,we should free the buffer which is malloc before
|
||
free(p->mVideoFrame.mRGB565Data);
|
||
memset(&p->mVideoFrame, 0x00, sizeof(VideoFrame));
|
||
}
|
||
p->mVideoFrame.mWidth = pPicture->nWidth;
|
||
p->mVideoFrame.mHeight = pPicture->nHeight;
|
||
p->mVideoFrame.mDisplayWidth = pPicture->nRightOffset - pPicture->nLeftOffset;
|
||
p->mVideoFrame.mDisplayHeight = pPicture->nBottomOffset - pPicture->nTopOffset;
|
||
p->mVideoFrame.mRGB565Size = p->mVideoFrame.mDisplayWidth * p->mVideoFrame.mDisplayHeight * 2;
|
||
p->mVideoFrame.mRGB565Data= (unsigned char*)malloc(p->mVideoFrame.mRGB565Size);
|
||
if(p->mVideoFrame.mRGB565Data == NULL)
|
||
{
|
||
TLOGE("can not allocate memory for video frame.");
|
||
return NULL;
|
||
}
|
||
transformPicture(p->memops, pPicture, &p->mVideoFrame);
|
||
}else{
|
||
TLOGE("fail:the outputType = %d,whic is not support",p->mOutputDataType);
|
||
}
|
||
/**return the picture buf to video decoder**/
|
||
ReturnPicture(p->mVideoDecoder,pPicture);
|
||
return &p->mVideoFrame;
|
||
}
|
||
else
|
||
{
|
||
TLOGE("cannot decode a picture.");
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
int TRetrieverGetMetaData(TRetriever* v, TMetaDataType type, void* pVal)
|
||
{
|
||
TRetrieverContext* p;
|
||
p = (TRetrieverContext*)v;
|
||
int ret = 0;
|
||
switch(type)
|
||
{
|
||
case TMETADATA_VIDEO_WIDTH:
|
||
{
|
||
int *w = (int*)pVal;
|
||
TLOGD("video width : %d", p->mMediaInfo.program[0].video[0].nWidth);
|
||
*w = p->mMediaInfo.program[0].video[0].nWidth;
|
||
break;
|
||
}
|
||
|
||
case TMETADATA_VIDEO_HEIGHT:
|
||
{
|
||
int *h = (int*)pVal;
|
||
TLOGD("hvideo height : %d", p->mMediaInfo.program[0].video[0].nHeight);
|
||
*h = p->mMediaInfo.program[0].video[0].nHeight;
|
||
break;
|
||
}
|
||
|
||
case TMETADATA_DURATION:
|
||
{
|
||
int *duration = (int*)pVal;
|
||
*duration = p->mMediaInfo.program[0].duration;
|
||
break;
|
||
}
|
||
case TMETADATA_MEDIAINFO:
|
||
{
|
||
CdxMediaInfoT *mi = (CdxMediaInfoT *)pVal;
|
||
*mi = p->mMediaInfo;
|
||
break;
|
||
}
|
||
case TMETADATA_PARSER_TYPE:
|
||
{
|
||
int *type = (int*)pVal;
|
||
*type = p->mParser->type;
|
||
break;
|
||
}
|
||
default:
|
||
{
|
||
TLOGW("unknown type: %d", type);
|
||
ret = -1;
|
||
break;
|
||
}
|
||
}
|
||
return ret;
|
||
}
|