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player_opencv.c中brg24变量的内存对齐 (#3800)

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在本地测试时发现，player_opencv.c程序如果不事先对brg24变量进行内存对齐，之后传入函数，运行到src/Codec/Transcode.cpp:FFmpegSws::inputFrame:sws_scale时可能会出现段错误
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Weng, Qiang 2024-08-10 11:06:33 +08:00 committed by GitHub
parent da704ab2f1
commit 4d8b000198
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1 changed files with 8 additions and 2 deletions
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api/tests/player_opencv.c
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@ -30,7 +30,13 @@ void API_CALL on_frame_decode(void *user_data, mk_frame_pix frame) {
int h = mk_get_av_frame_height(mk_frame_pix_get_av_frame(frame));
#if 1
uint8_t *brg24 = malloc(w * h * 3);
int align = 32;
size_t pixel_size = 3;
size_t raw_linesize = w * pixel_size;
// 对齐后的宽度
size_t aligned_linesize = (raw_linesize + align - 1) & ~(align - 1);
size_t total_size = aligned_linesize * h;
uint8_t* brg24 = malloc(total_size);
mk_swscale_input_frame(ctx->swscale, frame, brg24);
free(brg24);
#else
@ -106,4 +112,4 @@ int main(int argc, char *argv[]) {
mk_swscale_release(ctx.swscale);
}
return 0;
}
}