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| /**
x265库编码要使用以下库
-lpthread -ldl
ffprobe信息：
Input #0, hevc, from 'test.h265':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: hevc (Main), yuv420p(tv), 176x144, 25 fps, 25 tbr, 1200k
tbn, 25 tbc
*/
#include <stdio.h>
#include <stdlib.h>
#include "x265.h"
int x265_encode(const char* infile, int width, int height, int type, const char* outfile)
{
FILE *fp_src = NULL;
FILE *fp_dst = NULL;
unsigned int luma_size = 0;
unsigned int chroma_size = 0;
//int buff_size = 0;
char *buff = NULL;
uint32_t i_nal=0;
int i_frame=0;
int ret = 0;
x265_param param;
x265_nal *nal = NULL;
x265_encoder *handle = NULL;
x265_picture *pic_in = NULL;
int csp = type; // X265_CSP_I420;
fp_src = fopen(infile, "rb");
fp_dst = fopen(outfile, "wb");
if(fp_src==NULL || fp_dst==NULL)
{
perror("Error open yuv files:");
return -1;
}
x265_param_default(?m);
param.bRepeatHeaders = 1;//write sps,pps before keyframe
param.internalCsp = csp;
param.sourceWidth = width;
param.sourceHeight = height;
param.fpsNum = 25; // 帧率
param.fpsDenom = 1; // 帧率
handle = x265_encoder_open(?m);
if(handle == NULL)
{
printf("x265_encoder_open err\n");
goto out;
}
pic_in = x265_picture_alloc();
if (pic_in == NULL)
{
goto out;
}
x265_picture_init(?m, pic_in);
// Y分量大小
luma_size = param.sourceWidth * param.sourceHeight;
// 分量一帧YUV的空间
switch (csp)
{
case X265_CSP_I444:
buff = (char *)malloc(luma_size*3);
pic_in->planes[0] = buff;
pic_in->planes[1] = buff + luma_size;
pic_in->planes[2] = buff + luma_size*2;
pic_in->stride[0] = width;
pic_in->stride[1] = width;
pic_in->stride[2] = width;
break;
case X265_CSP_I420:
buff = (char *)malloc(luma_size*3/2);
pic_in->planes[0] = buff;
pic_in->planes[1] = buff + luma_size;
pic_in->planes[2] = buff + luma_size*5/4;
pic_in->stride[0] = width;
pic_in->stride[1] = width/2;
pic_in->stride[2] = width/2;
break;
default:
printf("Colorspace Not Support.\n");
goto out;
}
// 计算总帧数
fseek(fp_src, 0, SEEK_END);
switch(csp)
{
case X265_CSP_I444:
i_frame = ftell(fp_src) / (luma_size*3);
chroma_size = luma_size;
break;
case X265_CSP_I420:
i_frame = ftell(fp_src) / (luma_size*3/2);
chroma_size = luma_size / 4;
break;
default:
printf("Colorspace Not Support.\n");
return -1;
}
fseek(fp_src,0,SEEK_SET);
printf("framecnt: %d, y: %d u: %d\n", i_frame, luma_size, chroma_size);
for(int i=0; i < i_frame; i++)
{
switch(csp)
{
case X265_CSP_I444:
case X265_CSP_I420:
if (fread(pic_in->planes[0], 1, luma_size, fp_src) != luma_size)
break;
if (fread(pic_in->planes[1], 1, chroma_size, fp_src) != chroma_size)
break;
if (fread(pic_in->planes[2], 1, chroma_size, fp_src) != chroma_size)
break;
break;
default:
printf("Colorspace Not Support.\n");
goto out;
}
ret = x265_encoder_encode(handle, &nal, &i_nal, pic_in, NULL);
printf("encode frame: %5d framesize: %d nal: %d\n", i+1, ret, i_nal);
if (ret < 0)
{
printf("Error encode frame: %d.\n", i+1);
goto out;
}
for(uint32_t j = 0; j < i_nal; j++)
{
fwrite(nal[j].payload, 1, nal[j].sizeBytes, fp_dst);
}
}
// Flush Decoder
while((ret = x265_encoder_encode(handle, &nal, &i_nal, NULL, NULL)))
{
static int cnt = 1;
printf("flush frame: %d\n", cnt++);
for(uint32_t j=0; j < i_nal; j++)
{
fwrite(nal[j].payload, 1, nal[j].sizeBytes, fp_dst);
}
}
out:
x265_encoder_close(handle);
x265_picture_free(pic_in);
if (buff)
free(buff);
fclose(fp_src);
fclose(fp_dst);
return 0;
}
|
