diff options
Diffstat (limited to 'rotord/src/libavwrapper.h')
| -rw-r--r-- | rotord/src/libavwrapper.h | 187 |
1 files changed, 2 insertions, 185 deletions
diff --git a/rotord/src/libavwrapper.h b/rotord/src/libavwrapper.h index 4b24b02..77832a7 100644 --- a/rotord/src/libavwrapper.h +++ b/rotord/src/libavwrapper.h @@ -1,40 +1,6 @@ #ifndef libavwrapper_H #define libavwrapper_H -/* - * libavwrapper.h - * May 2012 Christopher Bruns - * The libavwrapper class is a C++ wrapper around the poorly documented - * libavcodec movie API used by ffmpeg. I made extensive use of Nathan - * Clack's implemention in the whisk project. - * - * The libavwrapper.h and libavwrapper.cpp files depend only on the libavcodec - * and allied sets of libraries. To compartmentalize and reduce dependencies - * I placed the Vaa3d specific use of this class into a separate set of - * source files: loadV3dFFMpeg.h/cpp - */ - -//////////////////////// -//now that we have guards -//instead of crashing instantly when the 2nd thread tries to encode a frame, we get an error - - //*** Error in `./rotord': corrupted double-linked list: 0x00007f3c31b1b630 *** - - //or - - //*** Error in `./rotord': double free or corruption (out): 0x00007f3bf8210080 *** - /////////////////////// - - -//http://blog.tomaka17.com/2012/03/libavcodeclibavformat-tutorial/ -//great to use c++11 features - - -//http://dranger.com/ffmpeg/ -//the mnost up to date tutorial? - -//https://github.com/lbrandy/ffmpeg-fas/tree/master -//try this! #ifndef UINT64_C #define UINT64_C(c) (c ## ULL) @@ -47,21 +13,9 @@ extern "C" { #include <libavformat/avformat.h> #include <libavutil/pixfmt.h> #include <libavutil/opt.h> -//#include <libavutil/imgutils.h> -//#include <libavutil/samplefmt.h> - -#include <libswscale/swscale.h> //? +#include <libswscale/swscale.h> } -/* -#include <QFile> -#include <QNetworkAccessManager> -#include <QMutex> -#include <QUrl> -#include <QBuffer> -*/ - - #include <string> #include <stdexcept> #include <iostream> @@ -72,90 +26,12 @@ extern "C" { #include <ffms.h> - namespace libav { - - - static bool b_is_one_time_inited=false; - // Some libavcodec calls are not reentrant - + // Some libavcodec calls are not reentrant void maybeInitFFMpegLib(); - static int sws_flags = SWS_BICUBIC; -// Translated to C++ by Christopher Bruns May 2012 -// from ffmeg_adapt.c in whisk package by Nathan Clack, Mark Bolstadt, Michael Meeuwisse - class decoder - { - public: - enum Channel { - RED = 0, - GRAY = 0, - GREEN = 1, - BLUE = 2, - ALPHA = 3 - }; - - - decoder(PixelFormat pixelFormat=PIX_FMT_RGB24); - //decoder(QUrl url, PixelFormat pixelFormat=PIX_FMT_RGB24); - void cleanup(); - virtual ~decoder(); - //bool open(QUrl url, enum PixelFormat formatParam = PIX_FMT_RGB24); - //bool open(QIODevice& fileStream, QString& fileName, enum PixelFormat formatParam = PIX_FMT_RGB24); - bool reinit_buffers_and_scaler(); - bool init_buffers_and_scaler(); - uint8_t getPixelIntensity(int x, int y, Channel c = GRAY) const; - bool fetchFrame(int targetFrameIndex = 0); - bool fetchFrame(int w,int h,int targetFrameIndex = 0); - int getNumberOfFrames() const; - int getWidth() const; - int getHeight() const; - float getFrameRate() const{return framerate;}; - int getNumberOfChannels() const; - bool readNextFrame(int targetFrameIndex = 0); - bool readNextFrameWithPacket(int targetFrameIndex, AVPacket& packet, AVFrame* pYuv); - int seekToFrame(int targetFrameIndex = 0); - int seekToFrameNew(int targetFrameIndex = 0); - - // make certain members public, for use by Fast3DTexture class - AVFrame *pFrameRGB; - AVFrame *pRaw; - AVFormatContext *container; - AVCodecContext *pCtx; - int videoStream; - int previousFrameIndex; - bool isOpen; - - - bool open(std::string& fileName, enum PixelFormat formatParam = PIX_FMT_RGB24); - bool open(char* fileName, enum PixelFormat formatParam = PIX_FMT_RGB24); - - protected: - - - void initialize(); - - bool openUsingInitializedContainer(enum PixelFormat formatParam = PIX_FMT_RGB24 ); - static bool avtry(int result, const std::string& msg); - - AVCodec *pCodec; - uint8_t *buffer, - *blank; - //struct - SwsContext *Sctx; - int width, height; - PixelFormat format; - size_t numBytes; - int numFrames; - int sc; // number of color channels - float framerate; - //NB representing framerate as a float implies that - //ABOVE ~93 HOURS AT 25FPS the calculations will be inaccurate - - }; - class video_decoder { public: @@ -283,40 +159,6 @@ namespace libav { bool loaded; }; -/* - // TODO - finish refactoring based on - // http://svn.gnumonks.org/trunk/21c3-video/ffmpeg/ffmpeg-0.4.9-pre1/output_example.c - class encoder - { - public: - //typedef encoder::Channel Channel; - - encoder(const char * file_name, int width, int height, float _framerate=25.0f, enum AVCodecID codec_id = CODEC_ID_H264); - virtual ~encoder(); - void setPixelIntensity(int x, int y, int c, uint8_t value); - void write_frame(float seconds,uint8_t *rgbdata); - void write_frame(float seconds,uint16_t *audiodata); - int get_audio_framesize(){ return audio_input_frame_size; } - float get_audio_step(){return audiostep;}; - - protected: - AVFormatContext *container; - AVCodecContext *pCtx; - AVFrame *picture_yuv; - AVFrame *picture_rgb; - AVFrame *audio_frame; - float timebase; - struct SwsContext *Sctx; - - AVStream *audio_st; - AVStream *video_st; - - AVCodecContext *aCtx; - int audio_input_frame_size; - float audiostep; - }; -*/ - class exporter { public: exporter(){ @@ -385,31 +227,6 @@ namespace libav { }; - class audioloader{ - public: - audioloader(){ready=false;sample_start=0;sample_end=0;}; - bool setup(const std::string &filename); - AVFrame* get_frame(); - uint16_t* get_samples(int num); - bool close(); - bool ready; - - AVCodecContext* codecContext; - AVFormatContext* formatContext; - int channels; //necessary to handle final packet -- unititialised after load/ problem? - private: - std::vector<uint16_t> buffer; - AVFrame* frame; - - AVStream* audioStream; - - AVPacket packet; - int sample_end; - int sample_start; - bool isPlanar; - - }; - } |