mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 08:12:17 +00:00
63b1031ca2
Like AV_PIX_FMT_GBRPF32LE.
573 lines
19 KiB
C
573 lines
19 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <string.h>
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#include <libavcodec/avcodec.h>
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#include <libavutil/pixfmt.h>
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#include <libavutil/pixdesc.h>
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#include "config.h"
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#include "video/img_format.h"
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#include "video/mp_image.h"
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#include "video/fmt-conversion.h"
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struct mp_imgfmt_entry {
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const char *name;
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int fmt;
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};
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static const struct mp_imgfmt_entry mp_imgfmt_list[] = {
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// not in ffmpeg
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{"vdpau_output", IMGFMT_VDPAU_OUTPUT},
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{"d3d11_nv12", IMGFMT_D3D11NV12},
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{"d3d11_rgb", IMGFMT_D3D11RGB},
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// FFmpeg names have an annoying "_vld" suffix
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{"videotoolbox", IMGFMT_VIDEOTOOLBOX},
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{"vaapi", IMGFMT_VAAPI},
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{"none", 0},
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{0}
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};
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char **mp_imgfmt_name_list(void)
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{
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int count = IMGFMT_END - IMGFMT_START;
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char **list = talloc_zero_array(NULL, char *, count + 1);
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int num = 0;
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for (int n = IMGFMT_START; n < IMGFMT_END; n++) {
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const char *name = mp_imgfmt_to_name(n);
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if (strcmp(name, "unknown") != 0)
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list[num++] = talloc_strdup(list, name);
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}
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return list;
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}
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int mp_imgfmt_from_name(bstr name)
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{
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int img_fmt = 0;
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for (const struct mp_imgfmt_entry *p = mp_imgfmt_list; p->name; ++p) {
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if (bstr_equals0(name, p->name)) {
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img_fmt = p->fmt;
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break;
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}
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}
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if (!img_fmt) {
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char *t = bstrdup0(NULL, name);
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img_fmt = pixfmt2imgfmt(av_get_pix_fmt(t));
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talloc_free(t);
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}
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return img_fmt;
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}
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char *mp_imgfmt_to_name_buf(char *buf, size_t buf_size, int fmt)
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{
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const char *name = NULL;
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const struct mp_imgfmt_entry *p = mp_imgfmt_list;
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for (; p->fmt; p++) {
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if (p->name && p->fmt == fmt) {
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name = p->name;
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break;
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}
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}
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if (!name) {
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const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(imgfmt2pixfmt(fmt));
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if (pixdesc)
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name = pixdesc->name;
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}
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if (!name)
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name = "unknown";
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snprintf(buf, buf_size, "%s", name);
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int len = strlen(buf);
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if (len > 2 && buf[len - 2] == MP_SELECT_LE_BE('l', 'b') && buf[len - 1] == 'e')
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buf[len - 2] = '\0';
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return buf;
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}
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static struct mp_imgfmt_desc mp_only_imgfmt_desc(int mpfmt)
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{
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switch (mpfmt) {
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case IMGFMT_VDPAU_OUTPUT:
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case IMGFMT_D3D11RGB:
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return (struct mp_imgfmt_desc) {
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.id = mpfmt,
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.avformat = AV_PIX_FMT_NONE,
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.flags = MP_IMGFLAG_BE | MP_IMGFLAG_LE | MP_IMGFLAG_RGB |
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MP_IMGFLAG_HWACCEL,
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};
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case IMGFMT_D3D11NV12:
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return (struct mp_imgfmt_desc) {
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.id = mpfmt,
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.avformat = AV_PIX_FMT_NONE,
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.flags = MP_IMGFLAG_BE | MP_IMGFLAG_LE | MP_IMGFLAG_YUV |
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MP_IMGFLAG_HWACCEL,
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};
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}
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return (struct mp_imgfmt_desc) {0};
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}
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struct mp_imgfmt_desc mp_imgfmt_get_desc(int mpfmt)
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{
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enum AVPixelFormat fmt = imgfmt2pixfmt(mpfmt);
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const AVPixFmtDescriptor *pd = av_pix_fmt_desc_get(fmt);
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if (!pd || pd->nb_components > 4 || fmt == AV_PIX_FMT_NONE ||
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fmt == AV_PIX_FMT_UYYVYY411)
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return mp_only_imgfmt_desc(mpfmt);
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enum mp_component_type is_uint =
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mp_imgfmt_get_component_type(fmt) == MP_COMPONENT_TYPE_UINT;
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struct mp_imgfmt_desc desc = {
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.id = mpfmt,
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.avformat = fmt,
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.chroma_xs = pd->log2_chroma_w,
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.chroma_ys = pd->log2_chroma_h,
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};
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int planedepth[4] = {0};
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int el_size = (pd->flags & AV_PIX_FMT_FLAG_BITSTREAM) ? 1 : 8;
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bool need_endian = false; // single component is spread over >1 bytes
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int shift = -1; // shift for all components, or -1 if not uniform
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for (int c = 0; c < pd->nb_components; c++) {
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AVComponentDescriptor d = pd->comp[c];
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// multiple components per plane -> Y is definitive, ignore chroma
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if (!desc.bpp[d.plane])
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desc.bpp[d.plane] = d.step * el_size;
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planedepth[d.plane] += d.depth;
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need_endian |= (d.depth + d.shift) > 8;
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if (c == 0)
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desc.component_bits = d.depth;
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if (d.depth != desc.component_bits)
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desc.component_bits = 0;
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if (c == 0)
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shift = d.shift;
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if (shift != d.shift)
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shift = -1;
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}
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for (int p = 0; p < 4; p++) {
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if (desc.bpp[p])
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desc.num_planes++;
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}
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desc.plane_bits = planedepth[0];
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// Check whether any components overlap other components (per plane).
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// We're cheating/simplifying here: we assume that this happens if a shift
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// is set - which is wrong in general (could be needed for padding, instead
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// of overlapping bits of another component - use the "< 8" test to exclude
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// "normal" formats which use this for padding, like p010).
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// Needed for rgb444le/be.
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bool component_byte_overlap = false;
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for (int c = 0; c < pd->nb_components; c++) {
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AVComponentDescriptor d = pd->comp[c];
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component_byte_overlap |= d.shift > 0 && planedepth[d.plane] > 8 &&
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desc.component_bits < 8;
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}
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// If every component sits in its own byte, or all components are within
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// a single byte, no endian-dependent access is needed. If components
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// stride bytes (like with packed 2 byte RGB formats), endian-dependent
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// access is needed.
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need_endian |= component_byte_overlap;
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if (!need_endian) {
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desc.flags |= MP_IMGFLAG_LE | MP_IMGFLAG_BE;
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} else {
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desc.flags |= (pd->flags & AV_PIX_FMT_FLAG_BE)
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? MP_IMGFLAG_BE : MP_IMGFLAG_LE;
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}
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if ((pd->flags & AV_PIX_FMT_FLAG_HWACCEL)) {
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desc.flags |= MP_IMGFLAG_HWACCEL;
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} else if (fmt == AV_PIX_FMT_XYZ12LE || fmt == AV_PIX_FMT_XYZ12BE) {
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desc.flags |= MP_IMGFLAG_XYZ;
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} else if (!(pd->flags & AV_PIX_FMT_FLAG_RGB) &&
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fmt != AV_PIX_FMT_MONOBLACK &&
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fmt != AV_PIX_FMT_PAL8)
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{
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desc.flags |= MP_IMGFLAG_YUV;
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} else {
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desc.flags |= MP_IMGFLAG_RGB;
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}
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if (pd->flags & AV_PIX_FMT_FLAG_ALPHA)
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desc.flags |= MP_IMGFLAG_ALPHA;
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if (mpfmt >= IMGFMT_RGB0_START && mpfmt <= IMGFMT_RGB0_END)
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desc.flags &= ~MP_IMGFLAG_ALPHA;
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if (desc.num_planes == pd->nb_components)
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desc.flags |= MP_IMGFLAG_PLANAR;
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if (!(pd->flags & AV_PIX_FMT_FLAG_HWACCEL) &&
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!(pd->flags & AV_PIX_FMT_FLAG_BITSTREAM))
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{
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desc.flags |= MP_IMGFLAG_BYTE_ALIGNED;
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for (int p = 0; p < desc.num_planes; p++)
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desc.bytes[p] = desc.bpp[p] / 8;
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}
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// PSEUDOPAL is a complete braindeath nightmare, however it seems various
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// parts of FFmpeg expect that it has a palette allocated.
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if (pd->flags & (AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_PSEUDOPAL))
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desc.flags |= MP_IMGFLAG_PAL;
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if ((desc.flags & (MP_IMGFLAG_YUV | MP_IMGFLAG_RGB))
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&& (desc.flags & MP_IMGFLAG_BYTE_ALIGNED)
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&& !(pd->flags & AV_PIX_FMT_FLAG_PAL)
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&& !component_byte_overlap
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&& shift >= 0 && is_uint)
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{
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bool same_depth = true;
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for (int p = 0; p < desc.num_planes; p++) {
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same_depth &= planedepth[p] == planedepth[0] &&
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desc.bpp[p] == desc.bpp[0];
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}
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if (same_depth && pd->nb_components == desc.num_planes) {
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if (desc.flags & MP_IMGFLAG_YUV) {
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desc.flags |= MP_IMGFLAG_YUV_P;
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} else {
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desc.flags |= MP_IMGFLAG_RGB_P;
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}
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}
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if (pd->nb_components == 3 && desc.num_planes == 2 &&
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planedepth[1] == planedepth[0] * 2 &&
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desc.bpp[1] == desc.bpp[0] * 2 &&
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(desc.flags & MP_IMGFLAG_YUV))
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{
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desc.flags |= MP_IMGFLAG_YUV_NV;
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if (fmt == AV_PIX_FMT_NV21)
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desc.flags |= MP_IMGFLAG_YUV_NV_SWAP;
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}
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if (desc.flags & (MP_IMGFLAG_YUV_P | MP_IMGFLAG_RGB_P | MP_IMGFLAG_YUV_NV))
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desc.component_bits += shift;
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}
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for (int p = 0; p < desc.num_planes; p++) {
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desc.xs[p] = (p == 1 || p == 2) ? desc.chroma_xs : 0;
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desc.ys[p] = (p == 1 || p == 2) ? desc.chroma_ys : 0;
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}
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desc.align_x = 1 << desc.chroma_xs;
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desc.align_y = 1 << desc.chroma_ys;
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if ((desc.bpp[0] % 8) != 0)
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desc.align_x = 8 / desc.bpp[0]; // expect power of 2
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if (desc.flags & MP_IMGFLAG_HWACCEL) {
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desc.component_bits = 0;
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desc.plane_bits = 0;
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}
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return desc;
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}
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static bool validate_regular_imgfmt(const struct mp_regular_imgfmt *fmt)
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{
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bool present[MP_NUM_COMPONENTS] = {0};
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int n_comp = 0;
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for (int n = 0; n < fmt->num_planes; n++) {
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const struct mp_regular_imgfmt_plane *plane = &fmt->planes[n];
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n_comp += plane->num_components;
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if (n_comp > MP_NUM_COMPONENTS)
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return false;
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if (!plane->num_components)
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return false; // no empty planes in between allowed
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bool pad_only = true;
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int chroma_luma = 0; // luma: 1, chroma: 2, both: 3
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for (int i = 0; i < plane->num_components; i++) {
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int comp = plane->components[i];
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if (comp > MP_NUM_COMPONENTS)
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return false;
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if (comp == 0)
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continue;
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pad_only = false;
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if (present[comp - 1])
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return false; // no duplicates
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present[comp - 1] = true;
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chroma_luma |= (comp == 2 || comp == 3) ? 2 : 1;
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}
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if (pad_only)
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return false; // no planes with only padding allowed
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if ((fmt->chroma_w > 1 || fmt->chroma_h > 1) && chroma_luma == 3)
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return false; // separate chroma/luma planes required
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}
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if (!(present[0] || present[3]) || // at least component 1 or alpha needed
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(present[1] && !present[0]) || // component 2 requires component 1
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(present[2] && !present[1])) // component 3 requires component 2
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return false;
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return true;
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}
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enum mp_csp mp_imgfmt_get_forced_csp(int imgfmt)
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{
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const AVPixFmtDescriptor *pixdesc =
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av_pix_fmt_desc_get(imgfmt2pixfmt(imgfmt));
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// FFmpeg does not provide a flag for XYZ, so this is the best we can do.
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if (pixdesc && strncmp(pixdesc->name, "xyz", 3) == 0)
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return MP_CSP_XYZ;
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if (pixdesc && (pixdesc->flags & AV_PIX_FMT_FLAG_RGB))
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return MP_CSP_RGB;
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return MP_CSP_AUTO;
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}
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enum mp_component_type mp_imgfmt_get_component_type(int imgfmt)
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{
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const AVPixFmtDescriptor *pixdesc =
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av_pix_fmt_desc_get(imgfmt2pixfmt(imgfmt));
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if (!pixdesc)
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return MP_COMPONENT_TYPE_UNKNOWN;
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#ifdef AV_PIX_FMT_FLAG_FLOAT
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if (pixdesc->flags & AV_PIX_FMT_FLAG_FLOAT)
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return MP_COMPONENT_TYPE_FLOAT;
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#endif
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return MP_COMPONENT_TYPE_UINT;
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}
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static bool is_native_endian(const AVPixFmtDescriptor *pixdesc)
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{
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enum AVPixelFormat pixfmt = av_pix_fmt_desc_get_id(pixdesc);
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enum AVPixelFormat other = av_pix_fmt_swap_endianness(pixfmt);
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if (other == AV_PIX_FMT_NONE || other == pixfmt)
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return true; // no endian nonsense
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bool is_le = *(char *)&(uint32_t){1};
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return pixdesc && (is_le != !!(pixdesc->flags & AV_PIX_FMT_FLAG_BE));
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}
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bool mp_get_regular_imgfmt(struct mp_regular_imgfmt *dst, int imgfmt)
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{
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struct mp_regular_imgfmt res = {0};
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const AVPixFmtDescriptor *pixdesc =
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av_pix_fmt_desc_get(imgfmt2pixfmt(imgfmt));
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if (!pixdesc || (pixdesc->flags & AV_PIX_FMT_FLAG_BITSTREAM) ||
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(pixdesc->flags & AV_PIX_FMT_FLAG_HWACCEL) ||
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(pixdesc->flags & AV_PIX_FMT_FLAG_PAL) ||
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pixdesc->nb_components < 1 ||
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pixdesc->nb_components > MP_NUM_COMPONENTS ||
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!is_native_endian(pixdesc))
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return false;
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res.component_type = mp_imgfmt_get_component_type(imgfmt);
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if (!res.component_type)
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return false;
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const AVComponentDescriptor *comp0 = &pixdesc->comp[0];
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int depth = comp0->depth + comp0->shift;
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if (depth < 1 || depth > 64)
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return false;
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res.component_size = (depth + 7) / 8;
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for (int n = 0; n < pixdesc->nb_components; n++) {
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const AVComponentDescriptor *comp = &pixdesc->comp[n];
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if (comp->plane < 0 || comp->plane >= MP_MAX_PLANES)
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return false;
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res.num_planes = MPMAX(res.num_planes, comp->plane + 1);
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// We support uniform depth only.
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if (comp->depth != comp0->depth || comp->shift != comp0->shift)
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return false;
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// Uniform component size; even the padding must have same size.
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int ncomp = comp->step / res.component_size;
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if (!ncomp || ncomp * res.component_size != comp->step)
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return false;
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struct mp_regular_imgfmt_plane *plane = &res.planes[comp->plane];
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if (plane->num_components && plane->num_components != ncomp)
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return false;
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plane->num_components = ncomp;
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int pos = comp->offset / res.component_size;
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if (pos < 0 || pos >= ncomp || ncomp > MP_NUM_COMPONENTS)
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return false;
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if (plane->components[pos])
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return false;
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plane->components[pos] = n + 1;
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}
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// Make sure alpha is always component 4.
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if (pixdesc->nb_components == 2 && (pixdesc->flags & AV_PIX_FMT_FLAG_ALPHA)) {
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for (int n = 0; n < res.num_planes; n++) {
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for (int i = 0; i < res.planes[n].num_components; i++) {
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if (res.planes[n].components[i] == 2)
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res.planes[n].components[i] = 4;
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}
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}
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}
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res.component_pad = comp0->depth - res.component_size * 8;
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if (comp0->shift) {
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// We support padding only on 1 side.
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if (comp0->shift + comp0->depth != res.component_size * 8)
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return false;
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res.component_pad = -res.component_pad;
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}
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res.chroma_w = 1 << pixdesc->log2_chroma_w;
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res.chroma_h = 1 << pixdesc->log2_chroma_h;
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if (strncmp(pixdesc->name, "bayer_", 6) == 0)
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return false; // it's satan himself
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if (!validate_regular_imgfmt(&res))
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return false;
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*dst = res;
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return true;
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}
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// Find a format that has the given flags set with the following configuration.
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int mp_imgfmt_find(int xs, int ys, int planes, int component_bits, int flags)
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{
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for (int n = IMGFMT_START + 1; n < IMGFMT_END; n++) {
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struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(n);
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if (desc.id && ((desc.flags & flags) == flags)) {
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if (desc.num_planes == planes && desc.chroma_xs == xs &&
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|
desc.chroma_ys == ys && desc.plane_bits == component_bits &&
|
|
(desc.flags & MP_IMGFLAG_NE))
|
|
return desc.id;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if LIBAVUTIL_VERSION_MICRO < 100
|
|
#define avcodec_find_best_pix_fmt_of_list avcodec_find_best_pix_fmt2
|
|
#endif
|
|
|
|
// Compare the dst image formats, and return the one which can carry more data
|
|
// (e.g. higher depth, more color components, lower chroma subsampling, etc.),
|
|
// with respect to what is required to keep most of the src format.
|
|
// Returns the imgfmt, or 0 on error.
|
|
int mp_imgfmt_select_best(int dst1, int dst2, int src)
|
|
{
|
|
enum AVPixelFormat dst1pxf = imgfmt2pixfmt(dst1);
|
|
enum AVPixelFormat dst2pxf = imgfmt2pixfmt(dst2);
|
|
enum AVPixelFormat srcpxf = imgfmt2pixfmt(src);
|
|
enum AVPixelFormat dstlist[] = {dst1pxf, dst2pxf, AV_PIX_FMT_NONE};
|
|
return pixfmt2imgfmt(avcodec_find_best_pix_fmt_of_list(dstlist, srcpxf, 1, 0));
|
|
}
|
|
|
|
#if 0
|
|
|
|
#include <libavutil/frame.h>
|
|
#include "sws_utils.h"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
const AVPixFmtDescriptor *avd = av_pix_fmt_desc_next(NULL);
|
|
for (; avd; avd = av_pix_fmt_desc_next(avd)) {
|
|
enum AVPixelFormat fmt = av_pix_fmt_desc_get_id(avd);
|
|
if (fmt == AV_PIX_FMT_YUVJ420P || fmt == AV_PIX_FMT_YUVJ422P ||
|
|
fmt == AV_PIX_FMT_YUVJ444P || fmt == AV_PIX_FMT_YUVJ440P)
|
|
continue;
|
|
printf("%s (%d)", avd->name, (int)fmt);
|
|
int mpfmt = pixfmt2imgfmt(fmt);
|
|
bool generic = mpfmt >= IMGFMT_AVPIXFMT_START &&
|
|
mpfmt < IMGFMT_AVPIXFMT_END;
|
|
printf(" mp=%d%s\n ", mpfmt, generic ? " [GENERIC]" : "");
|
|
struct mp_imgfmt_desc d = mp_imgfmt_get_desc(mpfmt);
|
|
if (d.id)
|
|
assert(d.avformat == fmt);
|
|
#define FLAG(t, c) if (d.flags & (t)) printf("[%s]", c);
|
|
FLAG(MP_IMGFLAG_BYTE_ALIGNED, "BA")
|
|
FLAG(MP_IMGFLAG_ALPHA, "a")
|
|
FLAG(MP_IMGFLAG_PLANAR, "P")
|
|
FLAG(MP_IMGFLAG_YUV_P, "YUVP")
|
|
FLAG(MP_IMGFLAG_YUV_NV, "NV")
|
|
FLAG(MP_IMGFLAG_YUV_NV_SWAP, "NVSWAP")
|
|
FLAG(MP_IMGFLAG_YUV, "yuv")
|
|
FLAG(MP_IMGFLAG_RGB, "rgb")
|
|
FLAG(MP_IMGFLAG_XYZ, "xyz")
|
|
FLAG(MP_IMGFLAG_LE, "le")
|
|
FLAG(MP_IMGFLAG_BE, "be")
|
|
FLAG(MP_IMGFLAG_PAL, "pal")
|
|
FLAG(MP_IMGFLAG_HWACCEL, "hw")
|
|
int fcsp = mp_imgfmt_get_forced_csp(mpfmt);
|
|
if (fcsp)
|
|
printf(" fcsp=%d", fcsp);
|
|
printf(" ctype=%d", mp_imgfmt_get_component_type(mpfmt));
|
|
printf("\n");
|
|
printf(" planes=%d, chroma=%d:%d align=%d:%d bits=%d cbits=%d\n",
|
|
d.num_planes, d.chroma_xs, d.chroma_ys, d.align_x, d.align_y,
|
|
d.plane_bits, d.component_bits);
|
|
printf(" planes=%d, chroma=%d:%d align=%d:%d bits=%d cbits=%d\n",
|
|
d.num_planes, d.chroma_xs, d.chroma_ys, d.align_x, d.align_y,
|
|
d.plane_bits, d.component_bits);
|
|
printf(" {");
|
|
for (int n = 0; n < MP_MAX_PLANES; n++)
|
|
printf("%d/%d/[%d:%d] ", d.bytes[n], d.bpp[n], d.xs[n], d.ys[n]);
|
|
printf("}\n");
|
|
if (mpfmt && !(d.flags & MP_IMGFLAG_HWACCEL) && fmt != AV_PIX_FMT_UYYVYY411)
|
|
{
|
|
AVFrame *fr = av_frame_alloc();
|
|
fr->format = fmt;
|
|
fr->width = 128;
|
|
fr->height = 128;
|
|
int err = av_frame_get_buffer(fr, SWS_MIN_BYTE_ALIGN);
|
|
assert(err >= 0);
|
|
struct mp_image *mpi = mp_image_alloc(mpfmt, fr->width, fr->height);
|
|
assert(mpi);
|
|
// A rather fuzzy test, which might fail even if there's no bug.
|
|
for (int n = 0; n < 4; n++) {
|
|
assert(!!mpi->planes[n] == !!fr->data[n]);
|
|
assert(mpi->stride[n] == fr->linesize[n]);
|
|
}
|
|
talloc_free(mpi);
|
|
av_frame_free(&fr);
|
|
}
|
|
struct mp_regular_imgfmt reg;
|
|
if (mp_get_regular_imgfmt(®, mpfmt)) {
|
|
printf(" Regular: %d planes, %d bytes per comp., %d bit-pad "
|
|
"%dx%d chroma\n",
|
|
reg.num_planes, reg.component_size, reg.component_pad,
|
|
reg.chroma_w, reg.chroma_h);
|
|
for (int n = 0; n < reg.num_planes; n++) {
|
|
struct mp_regular_imgfmt_plane *plane = ®.planes[n];
|
|
printf(" %d: {", n);
|
|
for (int i = 0; i < plane->num_components; i++) {
|
|
if (i > 0)
|
|
printf(", ");
|
|
printf("%d", plane->components[i]);
|
|
}
|
|
printf("}\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|