Video decoder using FFmpeg/libav. More...
#include <decoder.h>
Inheritance diagram for VideoDecoder:
Collaboration diagram for VideoDecoder:
Public Member Functions | |
| VideoDecoder (AVCodecID av_codec_id, int n_threads=1) | |
| Default constructor. | |
| virtual | ~VideoDecoder () |
| Default destructor. | |
| virtual Frame * | output () |
| Return a reference to the internal storage of the decoder where the decoded frame is. | |
| virtual bool | pull () |
| Decode in_frame to out_frame. Return true if decoder returned a new frame (into out_frame), otherwise false. Implementation depends on the decoder library. | |
 Public Member Functions inherited from AVDecoder | |
| AVDecoder (AVCodecID av_codec_id, int n_threads=1) | |
| Default constructor. More... | |
| virtual void | flush () |
| Reset decoder state. How to flush depends on the decoder library. | |
| Public Member Functions inherited from Decoder | |
| Decoder () | |
| Default constructor. | |
| virtual | ~Decoder () |
| Default destructor. | |
| void | input (Frame *f) |
| Create a copy of the frame into the internal storage of the decoder (i.e. to Decoder::in_frame) | |
| long int | getMsTimestamp () |
| virtual void | releaseOutput () |
| Decoder might want to know that it's ok to overwrite the frame. | |
| virtual bool | isOk () |
| The thread that uses this decoder can check if it has gone sour. | |
| bool | hasFrame () |
Protected Attributes | |
| AVBitmapFrame | out_frame |
| int | width |
| int | height |
| AVFrame * | aux_av_frame |
| AVPixelFormat | current_pixel_format |
| SwsContext * | sws_ctx |
| float | secs_per_frame |
| Protected Attributes inherited from AVDecoder | |
| int | n_threads |
| Protected Attributes inherited from Decoder | |
| BasicFrame | in_frame |
| Payload data to be decoded. | |
| bool | has_frame |
Additional Inherited Members | |
| Public Attributes inherited from AVDecoder | |
| AVCodecID | av_codec_id |
| FFmpeg AVCodecId, identifying the codec. | |
| AVPacket * | av_packet |
| FFmpeg internal data structure; encoded frame (say, H264) | |
| AVCodecContext * | av_codec_context |
| FFmpeg internal data structure. | |
| AVCodec * | av_codec |
| FFmpeg internal data structure. | |
Detailed Description
Video decoder using FFmpeg/libav.
Decode video with FFmpeg, place decoded data to out_frame. VideoDecoder.out_frame's Frame.frametype is set to FrameType::avframe, i.e. the consumer of this frame must immediately copy the data.
See also Code walkthrough: rendering
The documentation for this class was generated from the following files:
- /home/sampsa/C/valkka/include/decoder.h
- /home/sampsa/C/valkka/src/decoder.cpp
