If AVVideotoolboxContext.cv_pix_fmt_type is set to 0, don't set the kCVPixelBufferPixelFormatTypeKey value on the VT decoder. This makes VT output its native format, which can be much faster on some hardware iterations (if the native format does not match with the requested format, it will be converted, which is slow). The default is still forcing nv12.
Unified · Split
| @@ -15,6 +15,10 @@ libavutil: 2015-08-28 · 14 unmodified lines | |||
| 15 | 15 | ||
| 16 | API changes, most recent first: | 16 | API changes, most recent first: |
| 17 | 17 | ||
| 18 | 2017-03-02 - xxxxxxx - lavc 57.81.104 - videotoolbox.h | ||
| 19 | AVVideotoolboxContext.cv_pix_fmt_type can now be set to 0 to output the | ||
| 20 | native decoder format. (The default value is not changed.) | ||
| 21 | |||
| 18 | 2017-03-02 - xxxxxxx - lavu 55.47.101, lavc 57.81.102, lavf 57.66.103 | 22 | 2017-03-02 - xxxxxxx - lavu 55.47.101, lavc 57.81.102, lavf 57.66.103 |
| 19 | Remove requirement to use AVOption or accessors to access certain fields | 23 | Remove requirement to use AVOption or accessors to access certain fields |
| 20 | in AVFrame, AVCodecContext, and AVFormatContext that were previously | 24 | in AVFrame, AVCodecContext, and AVFormatContext that were previously |
| @@ -29,7 +29,7 @@ · 28 unmodified lines | |||
| 29 | 29 | ||
| 30 | #define LIBAVCODEC_VERSION_MAJOR 57 | 30 | #define LIBAVCODEC_VERSION_MAJOR 57 |
| 31 | #define LIBAVCODEC_VERSION_MINOR 81 | 31 | #define LIBAVCODEC_VERSION_MINOR 81 |
| 32 | #define LIBAVCODEC_VERSION_MICRO 102 | 32 | #define LIBAVCODEC_VERSION_MICRO 103 |
| 33 | 33 | ||
| 34 | #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ | 34 | #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ |
| 35 | LIBAVCODEC_VERSION_MINOR, \ | 35 | LIBAVCODEC_VERSION_MINOR, \ |
| @@ -472,7 +472,8 @@ static CFDictionaryRef videotoolbox_buffer_attributes_create(int width, · 471 unmodified lines | |||
| 472 | &kCFTypeDictionaryKeyCallBacks, | 472 | &kCFTypeDictionaryKeyCallBacks, |
| 473 | &kCFTypeDictionaryValueCallBacks); | 473 | &kCFTypeDictionaryValueCallBacks); |
| 474 | 474 | ||
| 475 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferPixelFormatTypeKey, cv_pix_fmt); | 475 | if (pix_fmt) |
| 476 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferPixelFormatTypeKey, cv_pix_fmt); | ||
| 476 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferIOSurfacePropertiesKey, io_surface_properties); | 477 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferIOSurfacePropertiesKey, io_surface_properties); |
| 477 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferWidthKey, w); | 478 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferWidthKey, w); |
| 478 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferHeightKey, h); | 479 | CFDictionarySetValue(buffer_attributes, kCVPixelBufferHeightKey, h); |
| @@ -58,7 +58,8 @@ typedef struct AVVideotoolboxContext { · 57 unmodified lines | |||
| 58 | 58 | ||
| 59 | /** | 59 | /** |
| 60 | * CVPixelBuffer Format Type that Videotoolbox will use for decoded frames. | 60 | * CVPixelBuffer Format Type that Videotoolbox will use for decoded frames. |
| 61 | * set by the caller. | 61 | * set by the caller. If this is set to 0, then no specific format is |
| 62 | * requested from the decoder, and its native format is output. | ||
| 62 | */ | 63 | */ |
| 63 | OSType cv_pix_fmt_type; | 64 | OSType cv_pix_fmt_type; |
| 64 | 65 | ||