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| unsigned | swscale_version (void) |
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| const char * | swscale_configuration (void) |
| | Return the libswscale build-time configuration. More...
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| const char * | swscale_license (void) |
| | Return the libswscale license. More...
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| const AVClass * | sws_get_class (void) |
| | Get the AVClass for swsContext. More...
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| SwsContext * | sws_alloc_context (void) |
| | Allocate an empty SwsContext. More...
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| void | sws_free_context (SwsContext **ctx) |
| | Free the context and everything associated with it, and write NULL to the provided pointer. More...
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| int | sws_test_format (enum AVPixelFormat format, int output) |
| | Test if a given pixel format is supported. More...
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| int | sws_test_colorspace (enum AVColorSpace colorspace, int output) |
| | Test if a given color space is supported. More...
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| int | sws_test_primaries (enum AVColorPrimaries primaries, int output) |
| | Test if a given set of color primaries is supported. More...
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| int | sws_test_transfer (enum AVColorTransferCharacteristic trc, int output) |
| | Test if a given color transfer function is supported. More...
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| int | sws_test_frame (const AVFrame *frame, int output) |
| | Helper function to run all sws_test_* against a frame, as well as testing the basic frame properties for sanity. More...
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| int | sws_is_noop (const AVFrame *dst, const AVFrame *src) |
| | Check if a given conversion is a noop. More...
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| const int * | sws_getCoefficients (int colorspace) |
| | Return a pointer to yuv<->rgb coefficients for the given colorspace suitable for sws_setColorspaceDetails(). More...
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| int | sws_isSupportedInput (enum AVPixelFormat pix_fmt) |
| | Return a positive value if pix_fmt is a supported input format, 0 otherwise. More...
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| int | sws_isSupportedOutput (enum AVPixelFormat pix_fmt) |
| | Return a positive value if pix_fmt is a supported output format, 0 otherwise. More...
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| int | sws_isSupportedEndiannessConversion (enum AVPixelFormat pix_fmt) |
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| av_warn_unused_result int | sws_init_context (SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter) |
| | Initialize the swscaler context sws_context. More...
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| void | sws_freeContext (SwsContext *swsContext) |
| | Free the swscaler context swsContext. More...
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| SwsContext * | sws_getContext (int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) |
| | Allocate and return an SwsContext. More...
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| int | sws_scale (SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[]) |
| | Scale the image slice in srcSlice and put the resulting scaled slice in the image in dst. More...
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| int | sws_scale_frame (SwsContext *c, AVFrame *dst, const AVFrame *src) |
| | Scale source data from src and write the output to dst. More...
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| int | sws_frame_start (SwsContext *c, AVFrame *dst, const AVFrame *src) |
| | Initialize the scaling process for a given pair of source/destination frames. More...
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| void | sws_frame_end (SwsContext *c) |
| | Finish the scaling process for a pair of source/destination frames previously submitted with sws_frame_start(). More...
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| int | sws_send_slice (SwsContext *c, unsigned int slice_start, unsigned int slice_height) |
| | Indicate that a horizontal slice of input data is available in the source frame previously provided to sws_frame_start(). More...
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| int | sws_receive_slice (SwsContext *c, unsigned int slice_start, unsigned int slice_height) |
| | Request a horizontal slice of the output data to be written into the frame previously provided to sws_frame_start(). More...
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| unsigned int | sws_receive_slice_alignment (const SwsContext *c) |
| | Get the alignment required for slices. More...
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| int | sws_setColorspaceDetails (SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation) |
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| int | sws_getColorspaceDetails (SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation) |
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| SwsVector * | sws_allocVec (int length) |
| | Allocate and return an uninitialized vector with length coefficients. More...
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| SwsVector * | sws_getGaussianVec (double variance, double quality) |
| | Return a normalized Gaussian curve used to filter stuff quality = 3 is high quality, lower is lower quality. More...
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| void | sws_scaleVec (SwsVector *a, double scalar) |
| | Scale all the coefficients of a by the scalar value. More...
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| void | sws_normalizeVec (SwsVector *a, double height) |
| | Scale all the coefficients of a so that their sum equals height. More...
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| void | sws_freeVec (SwsVector *a) |
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| SwsFilter * | sws_getDefaultFilter (float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, float chromaHShift, float chromaVShift, int verbose) |
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| void | sws_freeFilter (SwsFilter *filter) |
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| SwsContext * | sws_getCachedContext (SwsContext *context, int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) |
| | Check if context can be reused, otherwise reallocate a new one. More...
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| void | sws_convertPalette8ToPacked32 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) |
| | Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. More...
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| void | sws_convertPalette8ToPacked24 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) |
| | Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. More...
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external API header
Definition in file swscale.h.
