mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 17:12:36 +00:00
0f8f6a665b
When I added mp_regular_imgfmt, I made the chroma subsampling use the actual chroma division factor, instead of a shift (log2 of the actual value). I had some ideas about how this was (probably?) more intuitive and general. But nothing ever uses non-power of 2 subsampling (except jpeg in rare cases apparently, because the world is a bad place). Change the fields back to use shifts and rename them to avoid mistakes.
214 lines
7.9 KiB
C
214 lines
7.9 KiB
C
#include <libavutil/frame.h>
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#include <libavutil/pixdesc.h>
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#include "tests.h"
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#include "video/fmt-conversion.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/sws_utils.h"
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int imgfmts[IMGFMT_AVPIXFMT_END - IMGFMT_AVPIXFMT_START + 100];
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int num_imgfmts;
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static enum AVPixelFormat pixfmt_unsup[100];
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static int num_pixfmt_unsup;
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static bool imgfmts_initialized;
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static int cmp_imgfmt_name(const void *a, const void *b)
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{
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char *name_a = mp_imgfmt_to_name(*(int *)a);
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char *name_b = mp_imgfmt_to_name(*(int *)b);
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return strcmp(name_a, name_b);
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}
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void init_imgfmts_list(void)
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{
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if (imgfmts_initialized)
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return;
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const AVPixFmtDescriptor *avd = av_pix_fmt_desc_next(NULL);
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for (; avd; avd = av_pix_fmt_desc_next(avd)) {
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enum AVPixelFormat fmt = av_pix_fmt_desc_get_id(avd);
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int mpfmt = pixfmt2imgfmt(fmt);
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if (!mpfmt) {
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assert(num_pixfmt_unsup < MP_ARRAY_SIZE(pixfmt_unsup));
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pixfmt_unsup[num_pixfmt_unsup++] = fmt;
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}
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}
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for (int fmt = IMGFMT_START; fmt <= IMGFMT_END; fmt++) {
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struct mp_imgfmt_desc d = mp_imgfmt_get_desc(fmt);
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enum AVPixelFormat pixfmt = imgfmt2pixfmt(fmt);
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if (d.id || pixfmt != AV_PIX_FMT_NONE) {
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assert(num_imgfmts < MP_ARRAY_SIZE(imgfmts)); // enlarge that array
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imgfmts[num_imgfmts++] = fmt;
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}
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}
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qsort(imgfmts, num_imgfmts, sizeof(imgfmts[0]), cmp_imgfmt_name);
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imgfmts_initialized = true;
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}
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static const char *comp_type(enum mp_component_type type)
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{
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switch (type) {
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case MP_COMPONENT_TYPE_UINT: return "uint";
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case MP_COMPONENT_TYPE_FLOAT: return "float";
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default: return "unknown";
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}
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}
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static void run(struct test_ctx *ctx)
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{
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init_imgfmts_list();
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FILE *f = test_open_out(ctx, "img_formats.txt");
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for (int z = 0; z < num_imgfmts; z++) {
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int mpfmt = imgfmts[z];
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enum AVPixelFormat pixfmt = imgfmt2pixfmt(mpfmt);
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const AVPixFmtDescriptor *avd = av_pix_fmt_desc_get(pixfmt);
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fprintf(f, "%s: ", mp_imgfmt_to_name(mpfmt));
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if (mpfmt >= IMGFMT_AVPIXFMT_START && mpfmt < IMGFMT_AVPIXFMT_END)
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fprintf(f, "[GENERIC] ");
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int fcsp = mp_imgfmt_get_forced_csp(mpfmt);
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if (fcsp)
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fprintf(f, "fcsp=%s ", m_opt_choice_str(mp_csp_names, fcsp));
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fprintf(f, "ctype=%s\n", comp_type(mp_imgfmt_get_component_type(mpfmt)));
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struct mp_imgfmt_desc d = mp_imgfmt_get_desc(mpfmt);
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if (d.id) {
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fprintf(f, " Legacy desc: ");
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#define FLAG(t, c) if (d.flags & (t)) fprintf(f, "[%s]", c);
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FLAG(MP_IMGFLAG_BYTE_ALIGNED, "ba")
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FLAG(MP_IMGFLAG_ALPHA, "a")
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FLAG(MP_IMGFLAG_YUV_P, "yuvp")
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FLAG(MP_IMGFLAG_YUV_NV, "nv")
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FLAG(MP_IMGFLAG_YUV, "yuv")
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FLAG(MP_IMGFLAG_RGB, "rgb")
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FLAG(MP_IMGFLAG_LE, "le")
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FLAG(MP_IMGFLAG_BE, "be")
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FLAG(MP_IMGFLAG_PAL, "pal")
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FLAG(MP_IMGFLAG_HWACCEL, "hw")
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fprintf(f, "\n");
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fprintf(f, " planes=%d, chroma=%d:%d align=%d:%d bits=%d cbits=%d\n",
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d.num_planes, d.chroma_xs, d.chroma_ys, d.align_x, d.align_y,
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d.plane_bits, d.component_bits);
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fprintf(f, " {");
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for (int n = 0; n < MP_MAX_PLANES; n++) {
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fprintf(f, "%d/%d/[%d:%d] ", d.bytes[n], d.bpp[n],
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d.xs[n], d.ys[n]);
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}
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fprintf(f, "}\n");
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} else {
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fprintf(f, " [NODESC]\n");
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}
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if (!(d.flags & MP_IMGFLAG_HWACCEL) && pixfmt != AV_PIX_FMT_NONE) {
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AVFrame *fr = av_frame_alloc();
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fr->format = pixfmt;
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fr->width = 128;
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fr->height = 128;
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int err = av_frame_get_buffer(fr, MP_IMAGE_BYTE_ALIGN);
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assert(err >= 0);
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struct mp_image *mpi = mp_image_alloc(mpfmt, fr->width, fr->height);
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if (mpi) {
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// A rather fuzzy test, which might fail even if there's no bug.
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for (int n = 0; n < 4; n++) {
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if (!!mpi->planes[n] != !!fr->data[n]) {
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#ifdef AV_PIX_FMT_FLAG_PSEUDOPAL
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if (n == 1 && (avd->flags & AV_PIX_FMT_FLAG_PSEUDOPAL))
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continue;
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#endif
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fprintf(f, " Warning: p%d: %p %p\n", n,
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mpi->planes[n], fr->data[n]);
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}
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if (mpi->stride[n] != fr->linesize[n]) {
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fprintf(f, " Warning: p%d: %d %d\n", n,
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mpi->stride[n], fr->linesize[n]);
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}
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}
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} else {
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fprintf(f, " [NOALLOC]\n");
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}
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talloc_free(mpi);
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av_frame_free(&fr);
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}
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struct mp_regular_imgfmt reg;
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if (mp_get_regular_imgfmt(®, mpfmt)) {
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fprintf(f, " Regular: planes=%d compbytes=%d bitpad=%d "
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"chroma=%dx%d ctype=%s\n",
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reg.num_planes, reg.component_size, reg.component_pad,
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1 << reg.chroma_xs, 1 << reg.chroma_ys,
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comp_type(reg.component_type));
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for (int n = 0; n < reg.num_planes; n++) {
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struct mp_regular_imgfmt_plane *plane = ®.planes[n];
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fprintf(f, " %d: {", n);
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for (int i = 0; i < plane->num_components; i++) {
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if (i > 0)
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fprintf(f, ", ");
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fprintf(f, "%d", plane->components[i]);
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}
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fprintf(f, "}\n");
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}
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}
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// This isn't ours, but changes likely affect us.
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if (avd) {
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fprintf(f, " AVD: name=%s chroma=%d:%d flags=0x%"PRIx64, avd->name,
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avd->log2_chroma_w, avd->log2_chroma_h, avd->flags);
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#define FLAGAV(t, c) if (avd->flags & (t)) \
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{fprintf(f, "%s[%s]", pre, c); pre = ""; }
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char *pre = " ";
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FLAGAV(AV_PIX_FMT_FLAG_BE, "be")
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FLAGAV(AV_PIX_FMT_FLAG_PAL, "pal")
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FLAGAV(AV_PIX_FMT_FLAG_BITSTREAM, "bs")
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FLAGAV(AV_PIX_FMT_FLAG_HWACCEL, "hw")
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FLAGAV(AV_PIX_FMT_FLAG_PLANAR, "planar")
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FLAGAV(AV_PIX_FMT_FLAG_RGB, "rgb")
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FLAGAV(AV_PIX_FMT_FLAG_ALPHA, "alpha")
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FLAGAV(AV_PIX_FMT_FLAG_BAYER, "bayer")
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FLAGAV(AV_PIX_FMT_FLAG_FLOAT, "float")
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fprintf(f, "\n");
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for (int n = 0; n < avd->nb_components; n++) {
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const AVComponentDescriptor *cd = &avd->comp[n];
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fprintf(f, " %d: p=%-2d st=%-2d o=%-2d sh=%-2d d=%d\n",
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n, cd->plane, cd->step, cd->offset, cd->shift, cd->depth);
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}
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for (int n = avd->nb_components; n < 4; n++) {
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const AVComponentDescriptor *cd = &avd->comp[n];
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assert(!cd->plane && !cd->step && !cd->offset && !cd->shift &&
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!cd->depth);
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}
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}
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const AVPixFmtDescriptor *avd2 = av_pix_fmt_desc_next(NULL);
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for (; avd2; avd2 = av_pix_fmt_desc_next(avd2)) {
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enum AVPixelFormat pixfmt2 = av_pix_fmt_desc_get_id(avd2);
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int mpfmt2 = pixfmt2imgfmt(pixfmt2);
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if (mpfmt2 == mpfmt && pixfmt2 != pixfmt)
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fprintf(f, " Ambiguous alias: %s\n", avd2->name);
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}
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}
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for (int z = 0; z < num_pixfmt_unsup; z++) {
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const AVPixFmtDescriptor *avd = av_pix_fmt_desc_get(pixfmt_unsup[z]);
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fprintf(f, "Unsupported: %s\n", avd->name);
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}
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fclose(f);
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assert_text_files_equal(ctx, "img_formats.txt", "img_formats.txt",
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"This can fail if FFmpeg adds new formats or flags.");
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}
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const struct unittest test_img_format = {
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.name = "img_format",
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.run = run,
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};
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