public static extern AVRational av_guess_frame_rate(AVFormatContext* ctx, AVStream* stream, AVFrame* frame);
public static unsafe void UpdateFrame(AVFrame* avFrame, Bitmap bitmap)
{
Rectangle rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
BitmapData bmpData = bitmap.LockBits(rect, ImageLockMode.ReadWrite, bitmap.PixelFormat);
FFmpegInvoke.avpicture_fill((AVPicture*)avFrame, (byte*)bmpData.Scan0, (AVPixelFormat)avFrame->format, bitmap.Width, bitmap.Height);
bitmap.UnlockBits(bmpData);
}
public bool TryDecode(ref AVPacket packet, out AVFrame* pFrame)
{
int gotPicture;
fixed (AVPacket* pPacket = &packet)
{
int decodedSize = FFmpegInvoke.avcodec_decode_video2(codec_context, avFrame, &gotPicture, pPacket);
if (decodedSize < 0) { Console.WriteLine("Error while decoding frame."); }
}
pFrame = avFrame;
return gotPicture == 1;
}
public bool TryDecode(ref AVPacket packet, ref AVFrame frame)
{
int gotPicture;
fixed (AVPacket* pPacket = &packet)
fixed (AVFrame* pFrame = &frame)
{
int decodedSize = FFmpegInvoke.avcodec_decode_video2(_pDecodingContext, pFrame, &gotPicture, pPacket);
if (decodedSize < 0)
Trace.TraceWarning("Error while decoding frame.");
}
return gotPicture == 1;
}
public bool TryDecode(ref byte[] data, out AVFrame frame)
{
int gotPicture;
frame = new AVFrame();
fixed (byte* pData = &data[0])
fixed (AVFrame* pFrame = &frame)
{
var packet = new AVPacket {data = pData, size = data.Length};
int decodedSize = FFmpegInvoke.avcodec_decode_video2(_pDecodingContext, pFrame, &gotPicture, &packet);
if (decodedSize < 0)
Trace.TraceWarning("Error while decoding frame.");
}
return gotPicture == 1;
}
public byte[] ConvertFrame(AVFrame* pFrame)
{
if (_initialized == false)
Initialize(pFrame->width, pFrame->height, (AVPixelFormat)pFrame->format);
fixed (byte* pOutputData = &_outputData[0])
{
byte** pSrcData = &(pFrame)->data_0;
byte** pDstData = &(_pCurrentFrame)->data_0;
_pCurrentFrame->data_0 = pOutputData;
FFmpegInvoke.sws_scale(_pContext, pSrcData, pFrame->linesize, 0, pFrame->height, pDstData, _pCurrentFrame->linesize);
}
return _outputData;
}
public static extern int avcodec_decode_video2(AVCodecContext* avctx, AVFrame* picture, int* got_picture_ptr, AVPacket* avpkt);
public static extern int avcodec_decode_audio4(AVCodecContext* avctx, AVFrame* frame, int* got_frame_ptr, AVPacket* avpkt);
public static extern int swr_convert_frame(SwrContext* swr, AVFrame* output, AVFrame* input);
public static extern AVRational av_guess_sample_aspect_ratio(AVFormatContext* format, AVStream* stream, AVFrame* frame);
public static extern int avcodec_fill_audio_frame(AVFrame* frame, int nb_channels, AVSampleFormat sample_fmt, byte* buf, int buf_size, int align);
public static extern void av_frame_remove_side_data(AVFrame* frame, AVFrameSideDataType type);
public static extern AVFrameSideData* av_frame_get_side_data(AVFrame* frame, AVFrameSideDataType type);
public static extern AVFrameSideData* av_frame_new_side_data(AVFrame* frame, AVFrameSideDataType type, int size);
public static extern AVBufferRef* av_frame_get_plane_buffer(AVFrame* frame, int plane);
public static extern int av_frame_copy_props(AVFrame* dst, AVFrame* src);
public static extern int av_frame_make_writable(AVFrame* frame);
public static extern int avcodec_encode_video(AVCodecContext* avctx, byte* buf, int buf_size, AVFrame* pict);
public static extern int avcodec_encode_video2(AVCodecContext* avctx, AVPacket* avpkt, AVFrame* frame, int* got_packet_ptr);
public static extern void avcodec_get_frame_defaults(AVFrame* frame);
public static extern int av_interleaved_write_uncoded_frame(AVFormatContext* s, int stream_index, AVFrame* frame);
public static extern int avfilter_copy_buf_props(AVFrame* dst, AVFilterBufferRef* src);
public static extern void avcodec_free_frame(AVFrame** frame);
public static extern int av_buffersink_get_frame(AVFilterContext* ctx, AVFrame* frame);
public static extern int av_buffersink_get_frame_flags(AVFilterContext* ctx, AVFrame* frame, int flags);
public static extern void avcodec_default_release_buffer(AVCodecContext* s, AVFrame* pic);
public static extern int av_buffersink_get_samples(AVFilterContext* ctx, AVFrame* frame, int nb_samples);
public static extern int avcodec_default_reget_buffer(AVCodecContext* s, AVFrame* pic);
public static extern int swr_config_frame(SwrContext* swr, AVFrame* @out, AVFrame* @in);
public static extern int avcodec_default_get_buffer2(AVCodecContext* s, AVFrame* frame, int flags);
