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嵌入式专题: S5PV210 - MPEG4编码

时间:2017-07-25 22:29:12      阅读:168      评论:0      收藏:0      [点我收藏+]

标签:fopen   crp   err   saving   eof   ini   mmc   near   disable   

我想说不台的平台,如tiny210和x210。它们的头文件是有稍微区别的。

我这个是x210下的代码。但都须要注意的是NV12T与NV12的问题,默认要求输入的图片是NV12T,经过调整之后,能够同意用NV12。

即便如此。NV12格式的图片也不好拿到啊。


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

#include "../mfc/SsbSipMfcApi.h"
#include "../mfc/MfcConvert.h"
#include "../mm/MMClock.h"

int test_enc_mpeg4()
{
	MMClock clock;
	clock.Adjust(1000);

	SSBSIP_MFC_ERROR_CODE ret = MFC_RET_OK;
	
	// 打开
	unsigned int buf_type = CACHE;
	void* handle = SsbSipMfcEncOpen();
	if(handle == NULL)
	{
		printf("failed to open mfc device!\n");
		return -1;
	}
	printf("== SsbSipMfcDecOpen OK \n");

	int img_width = 640;
	int img_height = 480;

	// 初始化
	SSBSIP_MFC_ENC_MPEG4_PARAM param;
	memset(¶m, 0, sizeof(param));
	param.codecType = MPEG4_ENC;
	param.SourceWidth = img_width;
	param.SourceHeight = img_height;
	param.FrameMap = NV12_LINEAR; // 使用linear

	param.IDRPeriod = 20;  // 能够大于3吗?
	param.SliceMode = 0;
	param.SliceArgument = 1;
	param.RandomIntraMBRefresh = 0; // ?

// 不使用frame based rate control param.EnableFRMRateControl = 1; param.TimeIncreamentRes = 1000; param.VopTimeIncreament = 40; param.Bitrate = 4000000; param.FrameQp = 1; param.FrameQp_P = 1; param.FrameQp_B = 1; param.QSCodeMax = 45; param.QSCodeMin = 20; param.CBRPeriodRf = 2; // 不使用自己定义padding param.PadControlOn = 0; param.LumaPadVal = 0; param.CbPadVal = 0; param.CrPadVal = 0; param.ProfileIDC = 66; param.LevelIDC = 22; param.NumberBFrames = 0; param.DisableQpelME = 0; if(SsbSipMfcEncInit(handle, ¶m) != MFC_RET_OK) { printf("failed to init encoder !\n"); return -1; } /* 得到输入缓冲区地址 */ SSBSIP_MFC_ENC_INPUT_INFO inbuf; if(SsbSipMfcEncGetInBuf (handle, &inbuf) != MFC_RET_OK) { printf("failed to get in buf !\n"); return 0; } printf("in buf: Y (addr=%08X, size=%d), CbCr (addr=%08X, size=%d) \n" , inbuf.YVirAddr, inbuf.YSize , inbuf.CVirAddr, inbuf.CSize ); /* 得到header */ SSBSIP_MFC_ENC_OUTPUT_INFO outbuf; ret = SsbSipMfcEncGetOutBuf (handle, &outbuf); if(ret != MFC_RET_OK) { printf("failed to get output (%d) \n", ret); return -1; } printf("saving header: %d bytes \n", outbuf.headerSize); if(1) { FILE* fp = fopen("a00.mpeg4", "wb"); fwrite(outbuf.StrmVirAddr, 1, outbuf.headerSize, fp); fclose(fp); } int y_size = img_width * img_height; int c_size = y_size / 2; /* 读取图像 */ FILE* fp = fopen("k00.nv12", "rb"); int n1 = fread(inbuf.YVirAddr, 1, y_size, fp); int n2 = fread(inbuf.CVirAddr, 1, c_size, fp); printf("read bytes: n1=%d, n2=%d \n", n1, n2); int count = 0; while(count ++ < 3) { printf("... times: %d , now %d ...\n", count, (int) clock.PtsTime()); /* 编码 */ ret = SsbSipMfcEncExe(handle); if(ret != MFC_RET_OK) { printf("failed encoding (%d) \n", ret); return -1; } /* 输出结果 */ SSBSIP_MFC_ENC_OUTPUT_INFO outbuf; ret = SsbSipMfcEncGetOutBuf (handle, &outbuf); if(ret != MFC_RET_OK) { printf("failed to get output (%d) \n", ret); return -1; } printf("output: frame type=%d, size=%d, header size=%d \n" , outbuf.frameType , outbuf.dataSize , outbuf.headerSize); /* 保存成文件*/ char filename[128]; sprintf(filename, "a%02d.mpeg4", count); FILE* fp = fopen(filename, "wb"); fwrite(outbuf.StrmVirAddr, 1, outbuf.dataSize, fp); fclose(fp); } SsbSipMfcEncClose(handle); return 0; }



嵌入式专题: S5PV210 - MPEG4编码

标签:fopen   crp   err   saving   eof   ini   mmc   near   disable   

原文地址:http://www.cnblogs.com/wzzkaifa/p/7236502.html

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