Something went wrong. Try again.
🎥 Command line media player
Something went wrong. Try again.
C
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677#pragma once
#include <stdbool.h>
enum { // This controls bheavior with different bit widths per component (like // RGB565). If ROUND_DOWN is specified, the planar format will use the min. // bit width of all components, otherwise the transformation is lossless. REPACK_CREATE_ROUND_DOWN = (1 << 0),
// Expand some (not all) low bit depth fringe formats to 8 bit on unpack. REPACK_CREATE_EXPAND_8BIT = (1 << 1),
// For mp_repack_create_planar(). If specified, the planar format uses a // float 32 bit sample format. No range expansion is done. REPACK_CREATE_PLANAR_F32 = (1 << 2),};
struct mp_repack;struct mp_image;
// Create a repacker between any format (imgfmt parameter) and an equivalent// planar format (that is native endian). If pack==true, imgfmt is the output,// otherwise it is the input. The respective other input/output is the planar// format. The planar format can be queried with mp_repack_get_format_*().// Note that some formats may change the "implied" colorspace (for example,// packed xyz unpacks as rgb).// If imgfmt is already planar, a passthrough repacker may be created.// imgfmt: src or dst format (usually packed, non-planar, etc.)// pack: true if imgfmt is dst, false if imgfmt is src// flags: any of REPACK_CREATE_* flags// returns: NULL on failure, otherwise free with talloc_free().struct mp_repack *mp_repack_create_planar(int imgfmt, bool pack, int flags);
// Return input and output formats for which rp was created.int mp_repack_get_format_src(struct mp_repack *rp);int mp_repack_get_format_dst(struct mp_repack *rp);
// Return pixel alignment. For x, this is a lowest pixel count at which there is// a byte boundary and a full chroma pixel (horizontal subsampling) on src/dst.// For y, this is the pixel height of the vertical subsampling.// Always returns a power of 2.int mp_repack_get_align_x(struct mp_repack *rp);int mp_repack_get_align_y(struct mp_repack *rp);
// Repack a single line from dst to src, as set in repack_config_buffers().// For subsampled chroma formats, this copies as many luma/alpha rows as needed// for a complete line (e.g. 2 luma lines, 1 chroma line for 4:2:0).// dst_x, src_x, y must be aligned to the pixel alignment. w may be unaligned// if at the right crop-border of the image, but must be always aligned to// horiz. sub-sampling. y is subject to hslice.void repack_line(struct mp_repack *rp, int dst_x, int dst_y, int src_x, int src_y, int w);
// Configure with a source and target buffer. The rp instance will keep the// mp_image pointers and access them on repack_line() calls. Refcounting is// not respected - the caller needs to make sure dst is always writable.// The images can have different sizes (as repack_line() lets you use different// target coordinates for dst/src).// This also allocates potentially required temporary buffers.// dst_flags: REPACK_BUF_* flags for dst// dst: where repack_line() writes to// src_flags: REPACK_BUF_* flags for src// src: where repack_line() reads from// enable_passthrough: if non-NULL, an bool array of size MP_MAX_PLANES indexed// by plane; a true entry requests disabling copying the// plane data to the dst plane. The function will write to// this array whether the plane can really be passed through// (i.e. will set array entries from true to false if pass-// through is not possible). It writes to all MP_MAX_PLANES// entries. If NULL, all entries are implicitly false.// returns: success (fails on OOM)bool repack_config_buffers(struct mp_repack *rp, int dst_flags, struct mp_image *dst, int src_flags, struct mp_image *src, bool *enable_passthrough);