mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 16:33:02 +00:00
7debdde9b9
Rename the text subtitle options from --sub-text- to --sub- and --ass- options to --sub-ass-. The intention is to common sub options to prefixed --sub- and special ASS option be seen as a special version of sub options. The OSD options that work like the --sub- options are still named --osd-. Man page updated including a short note about renamed --sub-text-* and --ass-* options to --sub-* and --sub-ass-*.
802 lines
25 KiB
C
802 lines
25 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <assert.h>
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#include <string.h>
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#include <math.h>
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#include <limits.h>
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#include <libavutil/common.h>
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#include <ass/ass.h>
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#include "mpv_talloc.h"
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#include "options/options.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "demux/demux.h"
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#include "video/csputils.h"
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#include "video/mp_image.h"
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#include "dec_sub.h"
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#include "ass_mp.h"
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#include "sd.h"
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struct sd_ass_priv {
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struct ass_library *ass_library;
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struct ass_renderer *ass_renderer;
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struct ass_track *ass_track;
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struct ass_track *shadow_track; // for --sub-ass=no rendering
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bool is_converted;
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struct lavc_conv *converter;
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bool on_top;
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struct mp_ass_packer *packer;
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struct sub_bitmap *bs;
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char last_text[500];
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struct mp_image_params video_params;
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struct mp_image_params last_params;
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double sub_speed, video_fps, frame_fps;
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int64_t *seen_packets;
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int num_seen_packets;
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bool duration_unknown;
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};
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static void mangle_colors(struct sd *sd, struct sub_bitmaps *parts);
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static void fill_plaintext(struct sd *sd, double pts);
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// Add default styles, if the track does not have any styles yet.
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// Apply style overrides if the user provides any.
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static void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts)
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{
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if (opts->ass_styles_file && opts->ass_style_override)
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ass_read_styles(track, opts->ass_styles_file, NULL);
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if (track->n_styles == 0) {
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if (!track->PlayResY) {
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track->PlayResY = MP_ASS_FONT_PLAYRESY;
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track->PlayResX = track->PlayResY * 4 / 3;
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}
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track->Kerning = true;
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int sid = ass_alloc_style(track);
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track->default_style = sid;
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ASS_Style *style = track->styles + sid;
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style->Name = strdup("Default");
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mp_ass_set_style(style, track->PlayResY, opts->sub_style);
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}
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if (opts->ass_style_override)
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ass_process_force_style(track);
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}
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static const char *const font_mimetypes[] = {
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"application/x-truetype-font",
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"application/vnd.ms-opentype",
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"application/x-font-ttf",
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"application/x-font", // probably incorrect
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NULL
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};
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static const char *const font_exts[] = {".ttf", ".ttc", ".otf", NULL};
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static bool attachment_is_font(struct mp_log *log, struct demux_attachment *f)
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{
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if (!f->name || !f->type || !f->data || !f->data_size)
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return false;
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for (int n = 0; font_mimetypes[n]; n++) {
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if (strcmp(font_mimetypes[n], f->type) == 0)
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return true;
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}
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// fallback: match against file extension
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char *ext = strlen(f->name) > 4 ? f->name + strlen(f->name) - 4 : "";
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for (int n = 0; font_exts[n]; n++) {
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if (strcasecmp(ext, font_exts[n]) == 0) {
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mp_warn(log, "Loading font attachment '%s' with MIME type %s. "
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"Assuming this is a broken Matroska file, which was "
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"muxed without setting a correct font MIME type.\n",
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f->name, f->type);
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return true;
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}
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}
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return false;
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}
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static void add_subtitle_fonts(struct sd *sd)
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{
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struct sd_ass_priv *ctx = sd->priv;
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struct MPOpts *opts = sd->opts;
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if (!opts->ass_enabled || !opts->use_embedded_fonts || !sd->attachments)
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return;
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for (int i = 0; i < sd->attachments->num_entries; i++) {
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struct demux_attachment *f = &sd->attachments->entries[i];
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if (attachment_is_font(sd->log, f))
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ass_add_font(ctx->ass_library, f->name, f->data, f->data_size);
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}
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}
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static void enable_output(struct sd *sd, bool enable)
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{
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struct sd_ass_priv *ctx = sd->priv;
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if (enable == !!ctx->ass_renderer)
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return;
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if (ctx->ass_renderer) {
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ass_renderer_done(ctx->ass_renderer);
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ctx->ass_renderer = NULL;
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} else {
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ctx->ass_renderer = ass_renderer_init(ctx->ass_library);
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mp_ass_configure_fonts(ctx->ass_renderer, sd->opts->sub_style,
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sd->global, sd->log);
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}
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}
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static void update_subtitle_speed(struct sd *sd)
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{
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struct MPOpts *opts = sd->opts;
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struct sd_ass_priv *ctx = sd->priv;
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ctx->sub_speed = 1.0;
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if (ctx->video_fps > 0 && ctx->frame_fps > 0) {
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MP_VERBOSE(sd, "Frame based format, dummy FPS: %f, video FPS: %f\n",
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ctx->frame_fps, ctx->video_fps);
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ctx->sub_speed *= ctx->frame_fps / ctx->video_fps;
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}
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if (opts->sub_fps && ctx->video_fps)
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ctx->sub_speed *= opts->sub_fps / ctx->video_fps;
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ctx->sub_speed *= opts->sub_speed;
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}
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static int init(struct sd *sd)
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{
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struct MPOpts *opts = sd->opts;
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struct sd_ass_priv *ctx = talloc_zero(sd, struct sd_ass_priv);
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sd->priv = ctx;
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char *extradata = sd->codec->extradata;
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int extradata_size = sd->codec->extradata_size;
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if (strcmp(sd->codec->codec, "ass") != 0) {
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ctx->is_converted = true;
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ctx->converter = lavc_conv_create(sd->log, sd->codec->codec, extradata,
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extradata_size);
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if (!ctx->converter)
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return -1;
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extradata = lavc_conv_get_extradata(ctx->converter);
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extradata_size = extradata ? strlen(extradata) : 0;
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if (strcmp(sd->codec->codec, "eia_608") == 0)
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ctx->duration_unknown = 1;
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}
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ctx->ass_library = mp_ass_init(sd->global, sd->log);
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add_subtitle_fonts(sd);
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if (opts->ass_style_override)
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ass_set_style_overrides(ctx->ass_library, opts->ass_force_style_list);
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ctx->ass_track = ass_new_track(ctx->ass_library);
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if (!ctx->is_converted)
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ctx->ass_track->track_type = TRACK_TYPE_ASS;
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ctx->shadow_track = ass_new_track(ctx->ass_library);
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ctx->shadow_track->PlayResX = 384;
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ctx->shadow_track->PlayResY = 288;
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mp_ass_add_default_styles(ctx->shadow_track, opts);
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if (extradata)
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ass_process_codec_private(ctx->ass_track, extradata, extradata_size);
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mp_ass_add_default_styles(ctx->ass_track, opts);
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#if LIBASS_VERSION >= 0x01302000
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ass_set_check_readorder(ctx->ass_track, sd->opts->sub_clear_on_seek ? 0 : 1);
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#endif
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ctx->frame_fps = sd->codec->frame_based;
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update_subtitle_speed(sd);
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enable_output(sd, true);
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ctx->packer = mp_ass_packer_alloc(ctx);
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return 0;
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}
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// Test if the packet with the given file position (used as unique ID) was
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// already consumed. Return false if the packet is new (and add it to the
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// internal list), and return true if it was already seen.
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static bool check_packet_seen(struct sd *sd, int64_t pos)
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{
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struct sd_ass_priv *priv = sd->priv;
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int a = 0;
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int b = priv->num_seen_packets;
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while (a < b) {
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int mid = a + (b - a) / 2;
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int64_t val = priv->seen_packets[mid];
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if (pos == val)
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return true;
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if (pos > val) {
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a = mid + 1;
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} else {
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b = mid;
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}
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}
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MP_TARRAY_INSERT_AT(priv, priv->seen_packets, priv->num_seen_packets, a, pos);
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return false;
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}
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#define UNKNOWN_DURATION (INT_MAX / 1000)
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static void decode(struct sd *sd, struct demux_packet *packet)
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{
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struct sd_ass_priv *ctx = sd->priv;
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ASS_Track *track = ctx->ass_track;
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if (ctx->converter) {
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if (!sd->opts->sub_clear_on_seek && packet->pos >= 0 &&
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check_packet_seen(sd, packet->pos))
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return;
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if (packet->duration < 0) {
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if (!ctx->duration_unknown) {
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MP_WARN(sd, "Subtitle with unknown duration.\n");
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ctx->duration_unknown = true;
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}
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packet->duration = UNKNOWN_DURATION;
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}
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char **r = lavc_conv_decode(ctx->converter, packet);
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for (int n = 0; r && r[n]; n++)
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ass_process_data(track, r[n], strlen(r[n]));
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if (ctx->duration_unknown) {
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for (int n = 0; n < track->n_events - 1; n++) {
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if (track->events[n].Duration == UNKNOWN_DURATION * 1000) {
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track->events[n].Duration = track->events[n + 1].Start -
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track->events[n].Start;
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}
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}
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}
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} else {
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// Note that for this packet format, libass has an internal mechanism
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// for discarding duplicate (already seen) packets.
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ass_process_chunk(track, packet->buffer, packet->len,
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llrint(packet->pts * 1000),
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llrint(packet->duration * 1000));
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}
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}
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static void configure_ass(struct sd *sd, struct mp_osd_res *dim,
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bool converted, ASS_Track *track)
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{
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struct MPOpts *opts = sd->opts;
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struct sd_ass_priv *ctx = sd->priv;
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ASS_Renderer *priv = ctx->ass_renderer;
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ass_set_frame_size(priv, dim->w, dim->h);
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ass_set_margins(priv, dim->mt, dim->mb, dim->ml, dim->mr);
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bool set_use_margins = false;
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int set_sub_pos = 0;
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float set_line_spacing = 0;
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float set_font_scale = 1;
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int set_hinting = 0;
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bool set_scale_with_window = false;
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bool set_scale_by_window = true;
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bool total_override = false;
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// With forced overrides, apply the --sub-* specific options
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if (converted || opts->ass_style_override == 3) {
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set_scale_with_window = opts->sub_scale_with_window;
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set_use_margins = opts->sub_use_margins;
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set_scale_by_window = opts->sub_scale_by_window;
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total_override = true;
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} else {
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set_scale_with_window = opts->ass_scale_with_window;
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set_use_margins = opts->ass_use_margins;
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}
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if (converted || opts->ass_style_override) {
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set_sub_pos = 100 - opts->sub_pos;
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set_line_spacing = opts->ass_line_spacing;
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set_hinting = opts->ass_hinting;
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set_font_scale = opts->sub_scale;
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}
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if (set_scale_with_window) {
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int vidh = dim->h - (dim->mt + dim->mb);
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set_font_scale *= dim->h / (float)MPMAX(vidh, 1);
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}
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if (!set_scale_by_window) {
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double factor = dim->h / 720.0;
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if (factor != 0.0)
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set_font_scale /= factor;
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}
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ass_set_use_margins(priv, set_use_margins);
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ass_set_line_position(priv, set_sub_pos);
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ass_set_shaper(priv, opts->ass_shaper);
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int set_force_flags = 0;
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if (total_override)
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set_force_flags |= ASS_OVERRIDE_BIT_STYLE | ASS_OVERRIDE_BIT_FONT_SIZE;
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if (opts->ass_style_override == 4)
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set_force_flags |= ASS_OVERRIDE_BIT_FONT_SIZE;
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#if LIBASS_VERSION >= 0x01201001
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if (converted)
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set_force_flags |= ASS_OVERRIDE_BIT_ALIGNMENT;
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#endif
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ass_set_selective_style_override_enabled(priv, set_force_flags);
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ASS_Style style = {0};
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mp_ass_set_style(&style, 288, opts->sub_style);
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ass_set_selective_style_override(priv, &style);
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free(style.FontName);
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if (converted && track->default_style < track->n_styles) {
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mp_ass_set_style(track->styles + track->default_style,
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track->PlayResY, opts->sub_style);
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}
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ass_set_font_scale(priv, set_font_scale);
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ass_set_hinting(priv, set_hinting);
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ass_set_line_spacing(priv, set_line_spacing);
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}
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static bool has_overrides(char *s)
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{
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if (!s)
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return false;
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return strstr(s, "\\pos") || strstr(s, "\\move") || strstr(s, "\\clip") ||
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strstr(s, "\\iclip") || strstr(s, "\\org") || strstr(s, "\\p");
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}
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#define END(ev) ((ev)->Start + (ev)->Duration)
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static long long find_timestamp(struct sd *sd, double pts)
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{
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struct sd_ass_priv *priv = sd->priv;
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if (pts == MP_NOPTS_VALUE)
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return 0;
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pts /= priv->sub_speed;
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long long ts = llrint(pts * 1000);
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if (!sd->opts->sub_fix_timing)
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return ts;
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// Try to fix small gaps and overlaps.
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ASS_Track *track = priv->ass_track;
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int threshold = SUB_GAP_THRESHOLD * 1000;
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int keep = SUB_GAP_KEEP * 1000;
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// Find the "current" event.
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ASS_Event *ev[2] = {0};
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int n_ev = 0;
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for (int n = 0; n < track->n_events; n++) {
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ASS_Event *event = &track->events[n];
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if (ts >= event->Start - threshold && ts <= END(event) + threshold) {
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if (n_ev >= MP_ARRAY_SIZE(ev))
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return ts; // multiple overlaps - give up (probably complex subs)
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ev[n_ev++] = event;
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}
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}
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if (n_ev != 2)
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return ts;
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// Simple/minor heuristic against destroying typesetting.
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if (ev[0]->Style != ev[1]->Style || has_overrides(ev[0]->Text) ||
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has_overrides(ev[1]->Text))
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return ts;
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// Sort by start timestamps.
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if (ev[0]->Start > ev[1]->Start)
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MPSWAP(ASS_Event*, ev[0], ev[1]);
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// We want to fix partial overlaps only.
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if (END(ev[0]) >= END(ev[1]))
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return ts;
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if (ev[0]->Duration < keep || ev[1]->Duration < keep)
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return ts;
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// Gap between the events -> move ts to show the end of the first event.
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if (ts >= END(ev[0]) && ts < ev[1]->Start && END(ev[0]) < ev[1]->Start &&
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END(ev[0]) + threshold >= ev[1]->Start)
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return END(ev[0]) - 1;
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// Overlap -> move ts to the (exclusive) end of the first event.
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// Relies on the fact that the ASS_Renderer has no overlap registered, even
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// if there is one. This happens to work because we never render the
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// overlapped state, and libass never resolves a collision.
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if (ts >= ev[1]->Start && ts <= END(ev[0]) && END(ev[0]) > ev[1]->Start &&
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END(ev[0]) <= ev[1]->Start + threshold)
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return END(ev[0]);
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return ts;
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}
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#undef END
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static void get_bitmaps(struct sd *sd, struct mp_osd_res dim, int format,
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double pts, struct sub_bitmaps *res)
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{
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struct sd_ass_priv *ctx = sd->priv;
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struct MPOpts *opts = sd->opts;
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bool no_ass = !opts->ass_enabled || ctx->on_top ||
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opts->ass_style_override == 5;
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bool converted = ctx->is_converted || no_ass;
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ASS_Track *track = no_ass ? ctx->shadow_track : ctx->ass_track;
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ASS_Renderer *renderer = ctx->ass_renderer;
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if (pts == MP_NOPTS_VALUE || !renderer)
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return;
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double scale = dim.display_par;
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if (!converted && (!opts->ass_style_override ||
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opts->ass_vsfilter_aspect_compat))
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{
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// Let's use the original video PAR for vsfilter compatibility:
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double par = ctx->video_params.p_w / (double)ctx->video_params.p_h;
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if (isnormal(par))
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scale *= par;
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}
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configure_ass(sd, &dim, converted, track);
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ass_set_pixel_aspect(renderer, scale);
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if (!converted && (!opts->ass_style_override ||
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opts->ass_vsfilter_blur_compat))
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{
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ass_set_storage_size(renderer, ctx->video_params.w, ctx->video_params.h);
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} else {
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ass_set_storage_size(renderer, 0, 0);
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}
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long long ts = find_timestamp(sd, pts);
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if (ctx->duration_unknown && pts != MP_NOPTS_VALUE) {
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mp_ass_flush_old_events(track, ts);
|
|
ctx->num_seen_packets = 0;
|
|
sd->preload_ok = false;
|
|
}
|
|
|
|
if (no_ass)
|
|
fill_plaintext(sd, pts);
|
|
|
|
int changed;
|
|
ASS_Image *imgs = ass_render_frame(renderer, track, ts, &changed);
|
|
mp_ass_packer_pack(ctx->packer, &imgs, 1, changed, format, res);
|
|
|
|
if (!converted && res->num_parts > 0) {
|
|
// mangle_colors() modifies the color field, so copy the thing.
|
|
MP_TARRAY_GROW(ctx, ctx->bs, res->num_parts);
|
|
memcpy(ctx->bs, res->parts, sizeof(ctx->bs[0]) * res->num_parts);
|
|
res->parts = ctx->bs;
|
|
|
|
mangle_colors(sd, res);
|
|
}
|
|
}
|
|
|
|
struct buf {
|
|
char *start;
|
|
int size;
|
|
int len;
|
|
};
|
|
|
|
static void append(struct buf *b, char c)
|
|
{
|
|
if (b->len < b->size) {
|
|
b->start[b->len] = c;
|
|
b->len++;
|
|
}
|
|
}
|
|
|
|
static void ass_to_plaintext(struct buf *b, const char *in)
|
|
{
|
|
bool in_tag = false;
|
|
const char *open_tag_pos = NULL;
|
|
bool in_drawing = false;
|
|
while (*in) {
|
|
if (in_tag) {
|
|
if (in[0] == '}') {
|
|
in += 1;
|
|
in_tag = false;
|
|
} else if (in[0] == '\\' && in[1] == 'p') {
|
|
in += 2;
|
|
// Skip text between \pN and \p0 tags. A \p without a number
|
|
// is the same as \p0, and leading 0s are also allowed.
|
|
in_drawing = false;
|
|
while (in[0] >= '0' && in[0] <= '9') {
|
|
if (in[0] != '0')
|
|
in_drawing = true;
|
|
in += 1;
|
|
}
|
|
} else {
|
|
in += 1;
|
|
}
|
|
} else {
|
|
if (in[0] == '\\' && (in[1] == 'N' || in[1] == 'n')) {
|
|
in += 2;
|
|
append(b, '\n');
|
|
} else if (in[0] == '\\' && in[1] == 'h') {
|
|
in += 2;
|
|
append(b, ' ');
|
|
} else if (in[0] == '{') {
|
|
open_tag_pos = in;
|
|
in += 1;
|
|
in_tag = true;
|
|
} else {
|
|
if (!in_drawing)
|
|
append(b, in[0]);
|
|
in += 1;
|
|
}
|
|
}
|
|
}
|
|
// A '{' without a closing '}' is always visible.
|
|
if (in_tag) {
|
|
while (*open_tag_pos)
|
|
append(b, *open_tag_pos++);
|
|
}
|
|
}
|
|
|
|
// Empty string counts as whitespace. Reads s[len-1] even if there are \0s.
|
|
static bool is_whitespace_only(char *s, int len)
|
|
{
|
|
for (int n = 0; n < len; n++) {
|
|
if (s[n] != ' ' && s[n] != '\t')
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static char *get_text(struct sd *sd, double pts)
|
|
{
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
ASS_Track *track = ctx->ass_track;
|
|
|
|
if (pts == MP_NOPTS_VALUE)
|
|
return NULL;
|
|
long long ipts = find_timestamp(sd, pts);
|
|
|
|
struct buf b = {ctx->last_text, sizeof(ctx->last_text) - 1};
|
|
|
|
for (int i = 0; i < track->n_events; ++i) {
|
|
ASS_Event *event = track->events + i;
|
|
if (ipts >= event->Start && ipts < event->Start + event->Duration) {
|
|
if (event->Text) {
|
|
int start = b.len;
|
|
ass_to_plaintext(&b, event->Text);
|
|
if (is_whitespace_only(&b.start[start], b.len - start)) {
|
|
b.len = start;
|
|
} else {
|
|
append(&b, '\n');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
b.start[b.len] = '\0';
|
|
|
|
if (b.len > 0 && b.start[b.len - 1] == '\n')
|
|
b.start[b.len - 1] = '\0';
|
|
|
|
return ctx->last_text;
|
|
}
|
|
|
|
static void fill_plaintext(struct sd *sd, double pts)
|
|
{
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
ASS_Track *track = ctx->shadow_track;
|
|
|
|
ass_flush_events(track);
|
|
|
|
char *text = get_text(sd, pts);
|
|
if (!text)
|
|
return;
|
|
|
|
bstr dst = {0};
|
|
|
|
if (ctx->on_top)
|
|
bstr_xappend(NULL, &dst, bstr0("{\\a6}"));
|
|
|
|
while (*text) {
|
|
if (*text == '{')
|
|
bstr_xappend(NULL, &dst, bstr0("\\"));
|
|
bstr_xappend(NULL, &dst, (bstr){text, 1});
|
|
// Break ASS escapes with U+2060 WORD JOINER
|
|
if (*text == '\\')
|
|
mp_append_utf8_bstr(NULL, &dst, 0x2060);
|
|
text++;
|
|
}
|
|
|
|
if (!dst.start)
|
|
return;
|
|
|
|
int n = ass_alloc_event(track);
|
|
ASS_Event *event = track->events + n;
|
|
event->Start = 0;
|
|
event->Duration = INT_MAX;
|
|
event->Style = track->default_style;
|
|
event->Text = strdup(dst.start);
|
|
|
|
talloc_free(dst.start);
|
|
}
|
|
|
|
static void reset(struct sd *sd)
|
|
{
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
if (sd->opts->sub_clear_on_seek || ctx->duration_unknown) {
|
|
ass_flush_events(ctx->ass_track);
|
|
ctx->num_seen_packets = 0;
|
|
sd->preload_ok = false;
|
|
}
|
|
if (ctx->converter)
|
|
lavc_conv_reset(ctx->converter);
|
|
}
|
|
|
|
static void uninit(struct sd *sd)
|
|
{
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
|
|
if (ctx->converter)
|
|
lavc_conv_uninit(ctx->converter);
|
|
ass_free_track(ctx->ass_track);
|
|
ass_free_track(ctx->shadow_track);
|
|
enable_output(sd, false);
|
|
ass_library_done(ctx->ass_library);
|
|
}
|
|
|
|
static int control(struct sd *sd, enum sd_ctrl cmd, void *arg)
|
|
{
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
switch (cmd) {
|
|
case SD_CTRL_SUB_STEP: {
|
|
double *a = arg;
|
|
long long ts = llrint(a[0] * (1000.0 / ctx->sub_speed));
|
|
long long res = ass_step_sub(ctx->ass_track, ts, a[1]);
|
|
if (!res)
|
|
return false;
|
|
a[0] = res / (1000.0 / ctx->sub_speed);
|
|
return true;
|
|
}
|
|
case SD_CTRL_SET_VIDEO_PARAMS:
|
|
ctx->video_params = *(struct mp_image_params *)arg;
|
|
return CONTROL_OK;
|
|
case SD_CTRL_SET_TOP:
|
|
ctx->on_top = *(bool *)arg;
|
|
return CONTROL_OK;
|
|
case SD_CTRL_SET_VIDEO_DEF_FPS:
|
|
ctx->video_fps = *(double *)arg;
|
|
update_subtitle_speed(sd);
|
|
return CONTROL_OK;
|
|
case SD_CTRL_UPDATE_SPEED:
|
|
update_subtitle_speed(sd);
|
|
return CONTROL_OK;
|
|
default:
|
|
return CONTROL_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
const struct sd_functions sd_ass = {
|
|
.name = "ass",
|
|
.accept_packets_in_advance = true,
|
|
.init = init,
|
|
.decode = decode,
|
|
.get_bitmaps = get_bitmaps,
|
|
.get_text = get_text,
|
|
.control = control,
|
|
.reset = reset,
|
|
.select = enable_output,
|
|
.uninit = uninit,
|
|
};
|
|
|
|
// Disgusting hack for (xy-)vsfilter color compatibility.
|
|
static void mangle_colors(struct sd *sd, struct sub_bitmaps *parts)
|
|
{
|
|
struct MPOpts *opts = sd->opts;
|
|
struct sd_ass_priv *ctx = sd->priv;
|
|
enum mp_csp csp = 0;
|
|
enum mp_csp_levels levels = 0;
|
|
if (opts->ass_vsfilter_color_compat == 0) // "no"
|
|
return;
|
|
bool force_601 = opts->ass_vsfilter_color_compat == 3;
|
|
ASS_Track *track = ctx->ass_track;
|
|
static const int ass_csp[] = {
|
|
[YCBCR_BT601_TV] = MP_CSP_BT_601,
|
|
[YCBCR_BT601_PC] = MP_CSP_BT_601,
|
|
[YCBCR_BT709_TV] = MP_CSP_BT_709,
|
|
[YCBCR_BT709_PC] = MP_CSP_BT_709,
|
|
[YCBCR_SMPTE240M_TV] = MP_CSP_SMPTE_240M,
|
|
[YCBCR_SMPTE240M_PC] = MP_CSP_SMPTE_240M,
|
|
};
|
|
static const int ass_levels[] = {
|
|
[YCBCR_BT601_TV] = MP_CSP_LEVELS_TV,
|
|
[YCBCR_BT601_PC] = MP_CSP_LEVELS_PC,
|
|
[YCBCR_BT709_TV] = MP_CSP_LEVELS_TV,
|
|
[YCBCR_BT709_PC] = MP_CSP_LEVELS_PC,
|
|
[YCBCR_SMPTE240M_TV] = MP_CSP_LEVELS_TV,
|
|
[YCBCR_SMPTE240M_PC] = MP_CSP_LEVELS_PC,
|
|
};
|
|
int trackcsp = track->YCbCrMatrix;
|
|
if (force_601)
|
|
trackcsp = YCBCR_BT601_TV;
|
|
// NONE is a bit random, but the intention is: don't modify colors.
|
|
if (trackcsp == YCBCR_NONE)
|
|
return;
|
|
if (trackcsp < sizeof(ass_csp) / sizeof(ass_csp[0]))
|
|
csp = ass_csp[trackcsp];
|
|
if (trackcsp < sizeof(ass_levels) / sizeof(ass_levels[0]))
|
|
levels = ass_levels[trackcsp];
|
|
if (trackcsp == YCBCR_DEFAULT) {
|
|
csp = MP_CSP_BT_601;
|
|
levels = MP_CSP_LEVELS_TV;
|
|
}
|
|
// Unknown colorspace (either YCBCR_UNKNOWN, or a valid value unknown to us)
|
|
if (!csp || !levels)
|
|
return;
|
|
|
|
struct mp_image_params params = ctx->video_params;
|
|
|
|
if (force_601) {
|
|
params.color = (struct mp_colorspace){
|
|
.space = MP_CSP_BT_709,
|
|
.levels = MP_CSP_LEVELS_TV,
|
|
};
|
|
}
|
|
|
|
if (csp == params.color.space && levels == params.color.levels)
|
|
return;
|
|
|
|
bool basic_conv = params.color.space == MP_CSP_BT_709 &&
|
|
params.color.levels == MP_CSP_LEVELS_TV &&
|
|
csp == MP_CSP_BT_601 &&
|
|
levels == MP_CSP_LEVELS_TV;
|
|
|
|
// With "basic", only do as much as needed for basic compatibility.
|
|
if (opts->ass_vsfilter_color_compat == 1 && !basic_conv)
|
|
return;
|
|
|
|
if (params.color.space != ctx->last_params.color.space ||
|
|
params.color.levels != ctx->last_params.color.levels)
|
|
{
|
|
int msgl = basic_conv ? MSGL_V : MSGL_WARN;
|
|
ctx->last_params = params;
|
|
MP_MSG(sd, msgl, "mangling colors like vsfilter: "
|
|
"RGB -> %s %s -> %s %s -> RGB\n",
|
|
m_opt_choice_str(mp_csp_names, csp),
|
|
m_opt_choice_str(mp_csp_levels_names, levels),
|
|
m_opt_choice_str(mp_csp_names, params.color.space),
|
|
m_opt_choice_str(mp_csp_names, params.color.levels));
|
|
}
|
|
|
|
// Conversion that VSFilter would use
|
|
struct mp_csp_params vs_params = MP_CSP_PARAMS_DEFAULTS;
|
|
vs_params.color.space = csp;
|
|
vs_params.color.levels = levels;
|
|
struct mp_cmat vs_yuv2rgb, vs_rgb2yuv;
|
|
mp_get_csp_matrix(&vs_params, &vs_yuv2rgb);
|
|
mp_invert_cmat(&vs_rgb2yuv, &vs_yuv2rgb);
|
|
|
|
// Proper conversion to RGB
|
|
struct mp_csp_params rgb_params = MP_CSP_PARAMS_DEFAULTS;
|
|
rgb_params.color = params.color;
|
|
struct mp_cmat vs2rgb;
|
|
mp_get_csp_matrix(&rgb_params, &vs2rgb);
|
|
|
|
for (int n = 0; n < parts->num_parts; n++) {
|
|
struct sub_bitmap *sb = &parts->parts[n];
|
|
uint32_t color = sb->libass.color;
|
|
int r = (color >> 24u) & 0xff;
|
|
int g = (color >> 16u) & 0xff;
|
|
int b = (color >> 8u) & 0xff;
|
|
int a = 0xff - (color & 0xff);
|
|
int rgb[3] = {r, g, b}, yuv[3];
|
|
mp_map_fixp_color(&vs_rgb2yuv, 8, rgb, 8, yuv);
|
|
mp_map_fixp_color(&vs2rgb, 8, yuv, 8, rgb);
|
|
sb->libass.color = MP_ASS_RGBA(rgb[0], rgb[1], rgb[2], a);
|
|
}
|
|
}
|