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videoio: retrieve encoded frames through FFmpeg backend

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- backport 15290
- add extra test case
This commit is contained in:
cudawarped
2019-11-18 14:07:06 +00:00
committed by Alexander Alekhin
parent f4d55d512f
commit aff8c9bd28
4 changed files with 287 additions and 6 deletions
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modules/videoio/include/opencv2/videoio.hpp
+3 -1
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@@ -136,7 +136,8 @@ enum VideoCaptureProperties {
CAP_PROP_FPS =5, //!< Frame rate.
CAP_PROP_FOURCC =6, //!< 4-character code of codec. see VideoWriter::fourcc .
CAP_PROP_FRAME_COUNT =7, //!< Number of frames in the video file.
CAP_PROP_FORMAT =8, //!< Format of the %Mat objects returned by VideoCapture::retrieve().
CAP_PROP_FORMAT =8, //!< Format of the %Mat objects (see Mat::type()) returned by VideoCapture::retrieve().
//!< Set value -1 to fetch undecoded RAW video streams (as Mat 8UC1).
CAP_PROP_MODE =9, //!< Backend-specific value indicating the current capture mode.
CAP_PROP_BRIGHTNESS =10, //!< Brightness of the image (only for those cameras that support).
CAP_PROP_CONTRAST =11, //!< Contrast of the image (only for cameras).
@@ -173,6 +174,7 @@ enum VideoCaptureProperties {
CAP_PROP_CHANNEL =43, //!< Video input or Channel Number (only for those cameras that support)
CAP_PROP_AUTO_WB =44, //!< enable/ disable auto white-balance
CAP_PROP_WB_TEMPERATURE=45, //!< white-balance color temperature
CAP_PROP_CODEC_PIXEL_FORMAT =46, //!< (read-only) codec's pixel format. 4-character code - see VideoWriter::fourcc . Subset of [AV_PIX_FMT_*](https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/raw.c) or -1 if unknown
#ifndef CV_DOXYGEN
CV__CAP_PROP_LATEST
#endif