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SmartAudio/package/allwinner/tina_multimedia/tmetadataretriever/tmetadataretriever.c

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2018-07-13 01:31:50 +00:00
/*
* Copyright (c) 2008-2016 Allwinner Technology Co. Ltd.
* All rights reserved.
*
* File : tmetadatatriever.c
* Description : tmetadatatriever for Linux,
* get the video thumbnails
* History :
*
*/
#define LOG_TAG "tmetadataretriever"
#include "tlog.h"
#include "tmetadataretriever.h"
#include <errno.h>
#include "memoryAdapter.h"
#include "iniparserapi.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <inttypes.h>
#define SAVE_YUV 0
#define SAVE_RGB 0
#define MAX_PACKET_COUNT_TO_GET_A_FRAME 4096 /* process 4096 packets to get a frame at maximum. */
#define MAX_TIME_TO_GET_A_FRAME 5000000 /* use 5 seconds to get a frame at maximum. */
typedef struct TRetrieverContext
{
CdxDataSourceT mSource;
CdxMediaInfoT mMediaInfo;
CdxParserT* mParser;
CdxStreamT* mStream;
VideoDecoder* mVideoDecoder;
VideoFrame mVideoFrame;
struct ScMemOpsS * memops;
int mScaleDownEn;
int mHorizonScaleDownRatio;
int mVerticalScaleDownRatio;
int mDecodedPixFormat;
int mOutputDataType;
}TRetrieverContext;
static int64_t GetSysTime()
{
int64_t time;
struct timeval t;
gettimeofday(&t, NULL);
time = (int64_t)t.tv_sec * 1000000;
time += t.tv_usec;
return time;
}
#if SAVE_RGB
//-------------------------------------------------------------------
/*
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λͼ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>ṹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>
λͼ<EFBFBD>ļ<EFBFBD>ͷ (bitmap-file header) BITMAPFILEHEADER bmfh
λͼ<EFBFBD><EFBFBD>Ϣͷ (bitmap-information header) BITMAPINFOHEADER bmih
<EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(color table) RGBQUAD aColors[]
ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD> BYTE aBitmapBits[]
*/
typedef struct bmp_header
{
short twobyte ;//<2F><><EFBFBD><EFBFBD><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>
//14B
char bfType[2] ;//!<21>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x4D42<34><32>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>'BM'
unsigned int bfSize ;//!˵<><CBB5><EFBFBD>ļ<EFBFBD><C4BC>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>Ϊ<EFBFBD><CEAA>λ
unsigned int bfReserved1;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0
unsigned int bfOffBits ;//!˵<><CBB5><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ͷ<EFBFBD><CDB7>ʼ<EFBFBD><CABC>ʵ<EFBFBD>ʵ<EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD>ֽڵ<D6BD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ14B+sizeof(BMPINFO)
}BMPHEADER;
typedef struct bmp_info
{
//40B
unsigned int biSize ;//!BMPINFO<46>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int biWidth ;//!ͼ<><CDBC><EFBFBD>Ŀ<EFBFBD><C4BF>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>λ
int biHeight ;//!ͼ<><CDBC><EFBFBD>Ŀ<EFBFBD><C4BF>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>λ,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//˵<><CBB5>ͼ<EFBFBD><CDBC><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>Ǹ<EFBFBD><C7B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
unsigned short biPlanes ;//!Ŀ<><C4BF><EFBFBD>豸˵<E8B1B8><CBB5>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><C7B1><EFBFBD>Ϊ1
unsigned short biBitCount ;//!<21><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F><><EFBFBD>أ<EFBFBD><D8A3><EFBFBD>ֵΪ1<CEAA><31>4<EFBFBD><34>8<EFBFBD><38>16<31><36>24<32><34><EFBFBD><EFBFBD>32
unsigned int biCompression ;//˵<><CBB5>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#define BI_RGB 0L //û<><C3BB>ѹ<EFBFBD><D1B9>
#define BI_RLE8 1L //ÿ<><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38><EFBFBD>ص<EFBFBD>RLEѹ<45><D1B9><EFBFBD><EFBFBD><EFBFBD>룬ѹ<EBA3AC><D1B9><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>2<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#define BI_RLE4 2L //ÿ<><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD><34><EFBFBD>ص<EFBFBD>RLEѹ<45><D1B9><EFBFBD><EFBFBD><EFBFBD>룬ѹ<EBA3AC><D1B9><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>2<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>
#define BI_BITFIELDS 3L //ÿ<><C3BF><EFBFBD><EFBFBD><EFBFBD>صı<D8B5><C4B1><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
unsigned int biSizeImage ;//ͼ<><CDBC><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>Ϊ<EFBFBD><CEAA>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BI_RGB<47><42>ʽʱ<CABD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0
int biXPelsPerMeter ;//ˮƽ<CBAE>ֱ<EFBFBD><D6B1>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F>ױ<EFBFBD>ʾ
int biYPelsPerMeter ;//<2F><>ֱ<EFBFBD>ֱ<EFBFBD><D6B1>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F>ױ<EFBFBD>ʾ
unsigned int biClrUsed ;//λͼʵ<CDBC><CAB5>ʹ<EFBFBD>õIJ<C3B5>ɫ<EFBFBD><C9AB><EFBFBD>е<EFBFBD><D0B5><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD>
unsigned int biClrImportant ;//<2F><>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ҪӰ<D2AA><D3B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>
}BMPINFO;
typedef struct tagRGBQUAD
{
unsigned char rgbBlue;
unsigned char rgbGreen;
unsigned char rgbRed;
unsigned char rgbReserved;
} RGBQUAD;
typedef struct tagBITMAPINFO
{
BMPINFO bmiHeader;
//RGBQUAD bmiColors[1];
unsigned int rgb[3];
} BITMAPINFO;
static int get_rgb565_header(int w, int h, BMPHEADER * head, BITMAPINFO * info)
{
int size = 0;
if (head && info)
{
size = w * h * 2;
memset(head, 0, sizeof(* head));
memset(info, 0, sizeof(* info));
head->bfType[0] = 'B';
head->bfType[1] = 'M';
head->bfOffBits = 14 + sizeof(* info);
head->bfSize = head->bfOffBits + size;
head->bfSize = (head->bfSize + 3) & ~3;
size = head->bfSize - head->bfOffBits;
info->bmiHeader.biSize = sizeof(info->bmiHeader);
info->bmiHeader.biWidth = w;
info->bmiHeader.biHeight = -h;
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = 16;
info->bmiHeader.biCompression = BI_BITFIELDS;
info->bmiHeader.biSizeImage = size;
info->rgb[0] = 0xF800;
info->rgb[1] = 0x07E0;
info->rgb[2] = 0x001F;
TLOGD("rgb565:%dbit,%d*%d,%d\n", info->bmiHeader.biBitCount, w, h, head->bfSize);
}
return size;
}
static int save_bmp_rgb565(FILE* fp, int width, int height, unsigned char* pData)
{
int success = 0;
int size = 0;
BMPHEADER head;
BITMAPINFO info;
size = get_rgb565_header(width, height, &head, &info);
if(size > 0)
{
fwrite(head.bfType,1,2,fp);
fwrite(&head.bfSize,1,4,fp);
fwrite(&head.bfReserved1,1,4,fp);
fwrite(&head.bfOffBits,1,4,fp);
fwrite(&info,1,sizeof(info), fp);
fwrite(pData,1,size, fp);
success = 1;
}
TLOGD("*****in save_bmp_rgb565:success=%d", success);
return success;
}
#endif
static int saveYuvPic(TRetrieverContext* retrieverContext,VideoFrame* videoFrame){
if(retrieverContext == NULL || videoFrame == NULL ||videoFrame->mYuvData== NULL){
TLOGE("retrieverContext or imgFrame or imgFrame->mData is null,saveYuvPic err");
return -1;
}
char path[50];
char acturalWidth[10];
char acturalHeight[10];
sprintf(acturalWidth,"%u",videoFrame->mDisplayWidth);
sprintf(acturalHeight,"%u",videoFrame->mDisplayHeight);
TLOGD("acturalWidth = %s,height = %s",acturalWidth,acturalHeight);
strcpy(path,"/tmp/save_");
strcat(path,acturalWidth);
strcat(path,"_");
strcat(path,acturalHeight);
switch (retrieverContext->mOutputDataType)
{
case TmetadataRetrieverOutputDataNV21:
strcat(path,"_nv21.dat");
break;
case TmetadataRetrieverOutputDataYV12:
strcat(path,"_yv12.dat");
break;
default:
TLOGW("the retrieverContext->mOutputDataType = %d,which is not support,use the default:%d",retrieverContext->mOutputDataType,TmetadataRetrieverOutputDataNV21);
strcat(path,"_nv21.dat");
break;
}
FILE* savaYuvFd = fopen(path, "wb");
if(savaYuvFd==NULL){
TLOGE("fopen save.yuv fail****");
TLOGE("err str: %s",strerror(errno));
return -1;
}else{
fseek(savaYuvFd,0,SEEK_SET);
int write_ret = fwrite(videoFrame->mYuvData, 1, videoFrame->mYuvSize, savaYuvFd);
if(write_ret <= 0){
TLOGE("yuv write error,err str: %s",strerror(errno));
fclose(savaYuvFd);
savaYuvFd = NULL;
return -1;
}
fclose(savaYuvFd);
savaYuvFd = NULL;
}
TLOGD("save yuv data successfully,path = %s",path);
return 0;
}
static int transformPicture(struct ScMemOpsS *memOps,
VideoPicture * pPicture,
VideoFrame* pVideoFrame)
{
unsigned short* pDst;
unsigned char* pSrcY;
unsigned char* pSrcU;
unsigned char* pSrcV;
int y;
int x;
unsigned char* pClipTable;
unsigned char* pClip;
static const int nClipMin = -278;
static const int nClipMax = 535;
if((pPicture->ePixelFormat!= PIXEL_FORMAT_YV12) &&
(pPicture->ePixelFormat!= PIXEL_FORMAT_YUV_PLANER_420))
{
TLOGE("source pixel format is not YV12, quit.");
return -1;
}
//* initialize the clip table.
pClipTable = (unsigned char*)malloc(nClipMax - nClipMin + 1);
if(pClipTable == NULL)
{
TLOGE("can not allocate memory for the clip table, quit.");
return -1;
}
for(x=nClipMin; x<=nClipMax; x++)
{
pClipTable[x-nClipMin] = (x<0) ? 0 : (x>255) ? 255 : x;
}
pClip = &pClipTable[-nClipMin];
//* flush cache.
CdcMemFlushCache(memOps, pPicture->pData0, pPicture->nLineStride*pPicture->nHeight);
CdcMemFlushCache(memOps, pPicture->pData1, pPicture->nLineStride*pPicture->nHeight/4);
CdcMemFlushCache(memOps, pPicture->pData2, pPicture->nLineStride*pPicture->nHeight/4);
//* set pointers.
pDst = (unsigned short*)pVideoFrame->mRGB565Data;
pSrcY = (unsigned char*)pPicture->pData0 + pPicture->nTopOffset * \
pPicture->nLineStride + pPicture->nLeftOffset;
if(pPicture->ePixelFormat== PIXEL_FORMAT_YV12)
{
pSrcV = (unsigned char*)pPicture->pData1 + (pPicture->nTopOffset/2) * \
(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
pSrcU = (unsigned char*)pPicture->pData2 + (pPicture->nTopOffset/2) * \
(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
}
else
{
pSrcU = (unsigned char*)pPicture->pData1 + (pPicture->nTopOffset/2) * \
(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
pSrcV = (unsigned char*)pPicture->pData2 + (pPicture->nTopOffset/2) * \
(pPicture->nLineStride/2) + pPicture->nLeftOffset/2;
}
for(y = 0; y < (int)pVideoFrame->mDisplayHeight; ++y)
{
for(x = 0; x < (int)pVideoFrame->mDisplayWidth; x += 2)
{
// B = 1.164 * (Y - 16) + 2.018 * (U - 128)
// G = 1.164 * (Y - 16) - 0.813 * (V - 128) - 0.391 * (U - 128)
// R = 1.164 * (Y - 16) + 1.596 * (V - 128)
// B = 298/256 * (Y - 16) + 517/256 * (U - 128)
// G = .................. - 208/256 * (V - 128) - 100/256 * (U - 128)
// R = .................. + 409/256 * (V - 128)
// min_B = (298 * (- 16) + 517 * (- 128)) / 256 = -277
// min_G = (298 * (- 16) - 208 * (255 - 128) - 100 * (255 - 128)) / 256 = -172
// min_R = (298 * (- 16) + 409 * (- 128)) / 256 = -223
// max_B = (298 * (255 - 16) + 517 * (255 - 128)) / 256 = 534
// max_G = (298 * (255 - 16) - 208 * (- 128) - 100 * (- 128)) / 256 = 432
// max_R = (298 * (255 - 16) + 409 * (255 - 128)) / 256 = 481
// clip range -278 .. 535
signed y1 = (signed)pSrcY[x] - 16;
signed y2 = (signed)pSrcY[x + 1] - 16;
signed u = (signed)pSrcU[x / 2] - 128;
signed v = (signed)pSrcV[x / 2] - 128;
signed u_b = u * 517;
signed u_g = -u * 100;
signed v_g = -v * 208;
signed v_r = v * 409;
signed tmp1 = y1 * 298;
signed b1 = (tmp1 + u_b) / 256;
signed g1 = (tmp1 + v_g + u_g) / 256;
signed r1 = (tmp1 + v_r) / 256;
signed tmp2 = y2 * 298;
signed b2 = (tmp2 + u_b) / 256;
signed g2 = (tmp2 + v_g + u_g) / 256;
signed r2 = (tmp2 + v_r) / 256;
unsigned int rgb1 = ((pClip[r1] >> 3) << 11) |
((pClip[g1] >> 2) << 5) |
(pClip[b1] >> 3);
unsigned int rgb2 = ((pClip[r2] >> 3) << 11) |
((pClip[g2] >> 2) << 5) |
(pClip[b2] >> 3);
*(unsigned int *)(&pDst[x]) = (rgb2 << 16) | rgb1;
}
pSrcY += pVideoFrame->mDisplayWidth;
if(y & 1)
{
pSrcU += pVideoFrame->mDisplayWidth / 2;
pSrcV += pVideoFrame->mDisplayWidth / 2;
}
pDst += pVideoFrame->mDisplayWidth;
}
free(pClipTable);
#if SAVE_RGB
FILE* outFp = fopen("/tmp/rgb.bmp", "wb");
if(outFp != NULL)
{
TLOGD("************save_bmp_rgb565");
save_bmp_rgb565(outFp, pVideoFrame->mDisplayWidth, pVideoFrame->mDisplayHeight, pVideoFrame->mRGB565Data);
fclose(outFp);
}
#endif
return 0;
}
static void clear(TRetriever* v)
{
TRetrieverContext* p;
p = (TRetrieverContext*)v;
if(p->mParser)
{
CdxParserForceStop(p->mParser); //* to prevend parser from blocking at a network io.
CdxParserClose(p->mParser);
p->mParser = NULL;
p->mStream = NULL;
}
else if(p->mStream)
{
CdxStreamForceStop(p->mStream);
CdxStreamClose(p->mStream);
p->mStream = NULL;
}
if(p->mVideoDecoder != NULL)
{
DestroyVideoDecoder(p->mVideoDecoder);
p->mVideoDecoder = NULL;
}
if(p->mSource.uri)
{
free(p->mSource.uri);
}
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))
{
merge tinav3.06 code
2018-12-13 10:48:25 +00:00
if(CdxParserSeekTo(p->mParser, timeUs,0) != 0)
init
2018-07-13 01:31:50 +00:00
{
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;
}