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convert pix fmt

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Jacek Jendrzej
2017-11-17 15:29:20 +01:00
parent 545fb415b2
commit 6649d6250a
1 changed files with 19 additions and 4 deletions
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21
libarmbox/video.cpp
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@@ -44,6 +44,7 @@ extern "C"
{
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libswscale/swscale.h>
}
#define lt_debug(args...) _lt_debug(TRIPLE_DEBUG_VIDEO, this, args)
@@ -193,12 +194,12 @@ void write_frame(AVFrame* in_frame, FILE* fp)
av_packet_unref(&pkt);
}
}
}
}
avcodec_close(codec_context);
av_free(codec_context);
}
}
}
}
}
int decode_frame(AVCodecContext *codecContext,AVPacket &packet, FILE* fp)
@@ -210,8 +211,22 @@ int decode_frame(AVCodecContext *codecContext,AVPacket &packet, FILE* fp)
av_frame_free(&frame);
return -1;
}
write_frame(frame, fp);
AVFrame *dest_frame = av_frame_alloc();
if(dest_frame){
dest_frame->height = (frame->height/2)*2;
dest_frame->width = (frame->width/2)*2;
dest_frame->format = AV_PIX_FMT_YUV420P;
av_frame_get_buffer(dest_frame, 32);
struct SwsContext *convert = NULL;
convert = sws_getContext(frame->width, frame->height, (AVPixelFormat)frame->format, dest_frame->width, dest_frame->height, AV_PIX_FMT_YUVJ420P, SWS_FAST_BILINEAR, NULL, NULL, NULL);
if(convert){
sws_scale(convert, frame->data, frame->linesize, 0, frame->height, dest_frame->data, dest_frame->linesize);
sws_freeContext(convert);
}
write_frame(dest_frame, fp);
av_frame_free(&frame);
av_frame_free(&dest_frame);
}
}
return 0;