X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=ffmpeg_raii.cpp;fp=ffmpeg_raii.cpp;h=042959780c0c5a05f55570c45717b1371430d723;hb=cd319a6f4b11d888d8e9f996a2ec487668777e13;hp=0000000000000000000000000000000000000000;hpb=41e14ef76d447d31cccc2ec607d3a244baf65c46;p=nageru

diff --git a/ffmpeg_raii.cpp b/ffmpeg_raii.cpp
new file mode 100644
index 0000000..0429597
--- /dev/null
+++ b/ffmpeg_raii.cpp
@@ -0,0 +1,60 @@
+#include "ffmpeg_raii.h"
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+}
+
+using namespace std;
+
+// AVFormatContext
+
+void avformat_close_input_unique(AVFormatContext *format_ctx)
+{
+	avformat_close_input(&format_ctx);
+}
+
+AVFormatContextWithCloser avformat_open_input_unique(
+	const char *pathname, AVInputFormat *fmt, AVDictionary **options)
+{
+	AVFormatContext *format_ctx = nullptr;
+	if (avformat_open_input(&format_ctx, pathname, fmt, options) != 0) {
+		format_ctx = nullptr;
+	}
+	return AVFormatContextWithCloser(format_ctx, avformat_close_input_unique);
+}
+
+
+// AVCodecContext
+
+void avcodec_free_context_unique(AVCodecContext *codec_ctx)
+{
+	avcodec_free_context(&codec_ctx);
+}
+
+AVCodecContextWithDeleter avcodec_alloc_context3_unique(const AVCodec *codec)
+{
+	return AVCodecContextWithDeleter(avcodec_alloc_context3(codec), avcodec_free_context_unique);
+}
+
+
+// AVCodecParameters
+
+void avcodec_parameters_free_unique(AVCodecParameters *codec_par)
+{
+	avcodec_parameters_free(&codec_par);
+}
+
+
+// AVFrame
+
+void av_frame_free_unique(AVFrame *frame)
+{
+	av_frame_free(&frame);
+}
+
+AVFrameWithDeleter av_frame_alloc_unique()
+{
+	return AVFrameWithDeleter(av_frame_alloc(), av_frame_free_unique);
+}
+