mirror of https://github.com/mpv-player/mpv
580 lines
17 KiB
C
580 lines
17 KiB
C
/*
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* Copyright (C) 2010 Benjamin Zores <ben@geexbox.org>
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*
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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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/*
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* Blu-ray parser/reader using libbluray
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* Use 'git clone git://git.videolan.org/libbluray' to get it.
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*
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* TODO:
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* - Add descrambled keys database support (KEYDB.cfg)
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*
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*/
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#include <string.h>
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#include <strings.h>
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#include <assert.h>
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#include <libbluray/bluray.h>
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#include <libbluray/meta_data.h>
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#include <libbluray/overlay.h>
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#include <libbluray/keys.h>
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#include <libbluray/bluray-version.h>
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#include <libavutil/common.h>
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#include "config.h"
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#include "mpv_talloc.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "options/m_config.h"
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#include "options/path.h"
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#include "stream.h"
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#include "osdep/timer.h"
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#include "sub/osd.h"
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#include "sub/img_convert.h"
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#include "video/mp_image.h"
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#define BLURAY_SECTOR_SIZE 6144
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#define BLURAY_DEFAULT_ANGLE 0
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#define BLURAY_DEFAULT_CHAPTER 0
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#define BLURAY_DEFAULT_TITLE -2
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#define BLURAY_MENU_TITLE -1
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// 90khz ticks
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#define BD_TIMEBASE (90000)
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#define BD_TIME_TO_MP(x) ((x) / (double)(BD_TIMEBASE))
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#define BD_TIME_FROM_MP(x) ((uint64_t)(x * BD_TIMEBASE))
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// copied from aacs.h in libaacs
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#define AACS_ERROR_CORRUPTED_DISC -1 /* opening or reading of AACS files failed */
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#define AACS_ERROR_NO_CONFIG -2 /* missing config file */
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#define AACS_ERROR_NO_PK -3 /* no matching processing key */
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#define AACS_ERROR_NO_CERT -4 /* no valid certificate */
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#define AACS_ERROR_CERT_REVOKED -5 /* certificate has been revoked */
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#define AACS_ERROR_MMC_OPEN -6 /* MMC open failed (no MMC drive ?) */
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#define AACS_ERROR_MMC_FAILURE -7 /* MMC failed */
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#define AACS_ERROR_NO_DK -8 /* no matching device key */
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struct bluray_priv_s {
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BLURAY *bd;
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BLURAY_TITLE_INFO *title_info;
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int num_titles;
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int current_angle;
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int current_title;
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int current_playlist;
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int cfg_title;
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char *cfg_device;
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bool use_nav;
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};
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static void destruct(struct bluray_priv_s *priv)
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{
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if (priv->title_info)
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bd_free_title_info(priv->title_info);
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bd_close(priv->bd);
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}
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inline static int play_title(struct bluray_priv_s *priv, int title)
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{
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return bd_select_title(priv->bd, title);
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}
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static void bluray_stream_close(stream_t *s)
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{
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destruct(s->priv);
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}
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static void handle_event(stream_t *s, const BD_EVENT *ev)
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{
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struct bluray_priv_s *b = s->priv;
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switch (ev->event) {
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case BD_EVENT_MENU:
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break;
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case BD_EVENT_STILL:
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break;
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case BD_EVENT_STILL_TIME:
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bd_read_skip_still(b->bd);
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break;
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case BD_EVENT_END_OF_TITLE:
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break;
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case BD_EVENT_PLAYLIST:
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b->current_playlist = ev->param;
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b->current_title = bd_get_current_title(b->bd);
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if (b->title_info)
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bd_free_title_info(b->title_info);
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b->title_info = bd_get_playlist_info(b->bd, b->current_playlist,
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b->current_angle);
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break;
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case BD_EVENT_TITLE:
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if (ev->param == BLURAY_TITLE_FIRST_PLAY) {
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b->current_title = bd_get_current_title(b->bd);
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} else
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b->current_title = ev->param;
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if (b->title_info) {
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bd_free_title_info(b->title_info);
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b->title_info = NULL;
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}
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break;
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case BD_EVENT_ANGLE:
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b->current_angle = ev->param;
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if (b->title_info) {
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bd_free_title_info(b->title_info);
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b->title_info = bd_get_playlist_info(b->bd, b->current_playlist,
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b->current_angle);
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}
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break;
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case BD_EVENT_POPUP:
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break;
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#if BLURAY_VERSION >= BLURAY_VERSION_CODE(0, 5, 0)
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case BD_EVENT_DISCONTINUITY:
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break;
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#endif
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default:
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MP_TRACE(s, "Unhandled event: %d %d\n", ev->event, ev->param);
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break;
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}
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}
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static int bluray_stream_fill_buffer(stream_t *s, char *buf, int len)
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{
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struct bluray_priv_s *b = s->priv;
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BD_EVENT event;
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while (bd_get_event(b->bd, &event))
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handle_event(s, &event);
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return bd_read(b->bd, buf, len);
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}
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static int bluray_stream_control(stream_t *s, int cmd, void *arg)
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{
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struct bluray_priv_s *b = s->priv;
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switch (cmd) {
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case STREAM_CTRL_GET_NUM_CHAPTERS: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (!ti)
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return STREAM_UNSUPPORTED;
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*((unsigned int *) arg) = ti->chapter_count;
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_CHAPTER_TIME: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (!ti)
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return STREAM_UNSUPPORTED;
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int chapter = *(double *)arg;
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double time = MP_NOPTS_VALUE;
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if (chapter >= 0 || chapter < ti->chapter_count)
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time = BD_TIME_TO_MP(ti->chapters[chapter].start);
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if (time == MP_NOPTS_VALUE)
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return STREAM_ERROR;
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*(double *)arg = time;
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return STREAM_OK;
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}
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case STREAM_CTRL_SET_CURRENT_TITLE: {
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const uint32_t title = *((unsigned int*)arg);
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if (title >= b->num_titles || !play_title(b, title))
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return STREAM_UNSUPPORTED;
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b->current_title = title;
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_CURRENT_TITLE: {
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*((unsigned int *) arg) = b->current_title;
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_NUM_TITLES: {
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*((unsigned int *)arg) = b->num_titles;
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_TIME_LENGTH: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (!ti)
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return STREAM_UNSUPPORTED;
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*((double *) arg) = BD_TIME_TO_MP(ti->duration);
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_CURRENT_TIME: {
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*((double *) arg) = BD_TIME_TO_MP(bd_tell_time(b->bd));
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return STREAM_OK;
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}
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case STREAM_CTRL_SEEK_TO_TIME: {
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double pts = *((double *) arg);
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bd_seek_time(b->bd, BD_TIME_FROM_MP(pts));
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stream_drop_buffers(s);
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// API makes it hard to determine seeking success
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_NUM_ANGLES: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (!ti)
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return STREAM_UNSUPPORTED;
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*((int *) arg) = ti->angle_count;
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_ANGLE: {
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*((int *) arg) = b->current_angle;
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return STREAM_OK;
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}
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case STREAM_CTRL_SET_ANGLE: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (!ti)
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return STREAM_UNSUPPORTED;
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int angle = *((int *) arg);
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if (angle < 0 || angle > ti->angle_count)
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return STREAM_UNSUPPORTED;
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b->current_angle = angle;
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bd_seamless_angle_change(b->bd, angle);
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_LANG: {
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const BLURAY_TITLE_INFO *ti = b->title_info;
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if (ti && ti->clip_count) {
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struct stream_lang_req *req = arg;
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BLURAY_STREAM_INFO *si = NULL;
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int count = 0;
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switch (req->type) {
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case STREAM_AUDIO:
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count = ti->clips[0].audio_stream_count;
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si = ti->clips[0].audio_streams;
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break;
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case STREAM_SUB:
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count = ti->clips[0].pg_stream_count;
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si = ti->clips[0].pg_streams;
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break;
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}
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for (int n = 0; n < count; n++) {
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BLURAY_STREAM_INFO *i = &si[n];
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if (i->pid == req->id) {
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snprintf(req->name, sizeof(req->name), "%.4s", i->lang);
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return STREAM_OK;
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}
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}
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}
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return STREAM_ERROR;
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}
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case STREAM_CTRL_GET_DISC_NAME: {
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const struct meta_dl *meta = bd_get_meta(b->bd);
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if (!meta || !meta->di_name || !meta->di_name[0])
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break;
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*(char**)arg = talloc_strdup(NULL, meta->di_name);
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return STREAM_OK;
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}
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case STREAM_CTRL_GET_SIZE:
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*(int64_t *)arg = bd_get_title_size(b->bd);
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return STREAM_OK;
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default:
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break;
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}
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return STREAM_UNSUPPORTED;
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}
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static const char *aacs_strerr(int err)
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{
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switch (err) {
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case AACS_ERROR_CORRUPTED_DISC: return "opening or reading of AACS files failed";
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case AACS_ERROR_NO_CONFIG: return "missing config file";
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case AACS_ERROR_NO_PK: return "no matching processing key";
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case AACS_ERROR_NO_CERT: return "no valid certificate";
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case AACS_ERROR_CERT_REVOKED: return "certificate has been revoked";
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case AACS_ERROR_MMC_OPEN: return "MMC open failed (maybe no MMC drive?)";
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case AACS_ERROR_MMC_FAILURE: return "MMC failed";
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case AACS_ERROR_NO_DK: return "no matching device key";
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default: return "unknown error";
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}
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}
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static bool check_disc_info(stream_t *s)
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{
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struct bluray_priv_s *b = s->priv;
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const BLURAY_DISC_INFO *info = bd_get_disc_info(b->bd);
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// check Blu-ray
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if (!info->bluray_detected) {
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MP_ERR(s, "Given stream is not a Blu-ray.\n");
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return false;
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}
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// check AACS
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if (info->aacs_detected) {
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if (!info->libaacs_detected) {
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MP_ERR(s, "AACS encryption detected but cannot find libaacs.\n");
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return false;
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}
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if (!info->aacs_handled) {
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MP_ERR(s, "AACS error: %s\n", aacs_strerr(info->aacs_error_code));
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return false;
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}
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}
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// check BD+
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if (info->bdplus_detected) {
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if (!info->libbdplus_detected) {
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MP_ERR(s, "BD+ encryption detected but cannot find libbdplus.\n");
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return false;
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}
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if (!info->bdplus_handled) {
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MP_ERR(s, "Cannot decrypt BD+ encryption.\n");
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return false;
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}
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}
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return true;
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}
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static void select_initial_title(stream_t *s, int title_guess) {
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struct bluray_priv_s *b = s->priv;
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int title = -1;
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if (b->cfg_title != BLURAY_DEFAULT_TITLE )
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title = b->cfg_title;
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else
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title = title_guess;
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if (title < 0)
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return;
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if (play_title(b, title))
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b->current_title = title;
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else {
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MP_WARN(s, "Couldn't start title '%d'.\n", title);
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b->current_title = bd_get_current_title(b->bd);
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}
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}
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static int bluray_stream_open_internal(stream_t *s)
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{
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struct bluray_priv_s *b = s->priv;
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char *device = NULL;
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/* find the requested device */
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if (b->cfg_device && b->cfg_device[0]) {
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device = b->cfg_device;
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} else {
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mp_read_option_raw(s->global, "bluray-device", &m_option_type_string,
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&device);
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}
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if (!device || !device[0]) {
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MP_ERR(s, "No Blu-ray device/location was specified ...\n");
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return STREAM_UNSUPPORTED;
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}
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/* open device */
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BLURAY *bd = bd_open(device, NULL);
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if (!bd) {
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MP_ERR(s, "Couldn't open Blu-ray device: %s\n", device);
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return STREAM_UNSUPPORTED;
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}
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b->bd = bd;
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if (!check_disc_info(s)) {
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destruct(b);
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return STREAM_UNSUPPORTED;
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}
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int title_guess = BLURAY_DEFAULT_TITLE;
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if (b->use_nav) {
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MP_FATAL(s, "BluRay menu support has been removed.\n");
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return STREAM_ERROR;
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} else {
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/* check for available titles on disc */
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b->num_titles = bd_get_titles(bd, TITLES_RELEVANT, 0);
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if (!b->num_titles) {
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MP_ERR(s, "Can't find any Blu-ray-compatible title here.\n");
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destruct(b);
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return STREAM_UNSUPPORTED;
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}
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MP_VERBOSE(s, "List of available titles:\n");
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/* parse titles information */
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uint64_t max_duration = 0;
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for (int i = 0; i < b->num_titles; i++) {
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BLURAY_TITLE_INFO *ti = bd_get_title_info(bd, i, 0);
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if (!ti)
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continue;
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char *time = mp_format_time(ti->duration / 90000, false);
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MP_VERBOSE(s, "idx: %3d duration: %s (playlist: %05d.mpls)\n",
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i + 1, time, ti->playlist);
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talloc_free(time);
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/* try to guess which title may contain the main movie */
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if (ti->duration > max_duration) {
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max_duration = ti->duration;
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title_guess = i;
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}
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bd_free_title_info(ti);
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}
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}
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// these should be set before any callback
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b->current_angle = -1;
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b->current_title = -1;
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// initialize libbluray event queue
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bd_get_event(bd, NULL);
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select_initial_title(s, title_guess);
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s->fill_buffer = bluray_stream_fill_buffer;
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s->close = bluray_stream_close;
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s->control = bluray_stream_control;
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s->type = STREAMTYPE_BLURAY;
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s->sector_size = BLURAY_SECTOR_SIZE;
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s->priv = b;
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s->demuxer = "+disc";
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MP_VERBOSE(s, "Blu-ray successfully opened.\n");
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return STREAM_OK;
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}
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const stream_info_t stream_info_bdnav;
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static int bluray_stream_open(stream_t *s)
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{
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struct bluray_priv_s *b = talloc_zero(s, struct bluray_priv_s);
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s->priv = b;
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b->use_nav = s->info == &stream_info_bdnav;
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bstr title, bdevice;
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bstr_split_tok(bstr0(s->path), "/", &title, &bdevice);
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b->cfg_title = BLURAY_DEFAULT_TITLE;
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if (bstr_equals0(title, "longest") || bstr_equals0(title, "first")) {
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b->cfg_title = BLURAY_DEFAULT_TITLE;
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} else if (bstr_equals0(title, "menu")) {
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b->cfg_title = BLURAY_MENU_TITLE;
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} else if (title.len) {
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bstr rest;
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b->cfg_title = bstrtoll(title, &rest, 10);
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if (rest.len) {
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MP_ERR(s, "number expected: '%.*s'\n", BSTR_P(rest));
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return STREAM_ERROR;
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}
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}
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b->cfg_device = bstrto0(b, bdevice);
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return bluray_stream_open_internal(s);
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}
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const stream_info_t stream_info_bluray = {
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.name = "bd",
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.open = bluray_stream_open,
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.protocols = (const char*const[]){ "bd", "br", "bluray", NULL },
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};
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const stream_info_t stream_info_bdnav = {
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.name = "bdnav",
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.open = bluray_stream_open,
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.protocols = (const char*const[]){ "bdnav", "brnav", "bluraynav", NULL },
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};
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static bool check_bdmv(const char *path)
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{
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if (strcasecmp(mp_basename(path), "MovieObject.bdmv"))
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|
return false;
|
|
|
|
FILE *temp = fopen(path, "rb");
|
|
if (!temp)
|
|
return false;
|
|
|
|
bool r = false;
|
|
|
|
const char *sig1 = "MOBJ020";
|
|
const char *sig2 = "MOBJ0100";
|
|
char data[50];
|
|
|
|
if (fread(data, 50, 1, temp) == 1) {
|
|
r = memcmp(data, sig1, strlen(sig1)) == 0 ||
|
|
memcmp(data, sig2, strlen(sig2)) == 0;
|
|
}
|
|
|
|
fclose(temp);
|
|
return r;
|
|
}
|
|
|
|
// Destructively remove the current trailing path component.
|
|
static void remove_prefix(char *path)
|
|
{
|
|
size_t len = strlen(path);
|
|
#if HAVE_DOS_PATHS
|
|
const char *seps = "/\\";
|
|
#else
|
|
const char *seps = "/";
|
|
#endif
|
|
while (len > 0 && !strchr(seps, path[len - 1]))
|
|
len--;
|
|
while (len > 0 && strchr(seps, path[len - 1]))
|
|
len--;
|
|
path[len] = '\0';
|
|
}
|
|
|
|
static int bdmv_dir_stream_open(stream_t *stream)
|
|
{
|
|
struct bluray_priv_s *priv = talloc_ptrtype(stream, priv);
|
|
stream->priv = priv;
|
|
*priv = (struct bluray_priv_s){
|
|
.cfg_title = BLURAY_DEFAULT_TITLE,
|
|
};
|
|
|
|
char *path = mp_file_get_path(priv, bstr0(stream->url));
|
|
if (!path)
|
|
goto unsupported;
|
|
|
|
// We allow the path to point to a directory containing BDMV/, a
|
|
// directory containing MovieObject.bdmv, or that file itself.
|
|
if (!check_bdmv(path)) {
|
|
// On UNIX, just assume the filename has always this case.
|
|
char *npath = mp_path_join(priv, path, "MovieObject.bdmv");
|
|
if (!check_bdmv(npath)) {
|
|
npath = mp_path_join(priv, path, "BDMV/MovieObject.bdmv");
|
|
if (!check_bdmv(npath))
|
|
goto unsupported;
|
|
}
|
|
path = npath;
|
|
}
|
|
|
|
// Go up by 2 levels.
|
|
remove_prefix(path);
|
|
remove_prefix(path);
|
|
priv->cfg_device = path;
|
|
if (strlen(priv->cfg_device) <= 1)
|
|
goto unsupported;
|
|
|
|
MP_INFO(stream, "BDMV detected. Redirecting to bluray://\n");
|
|
return bluray_stream_open_internal(stream);
|
|
|
|
unsupported:
|
|
talloc_free(priv);
|
|
stream->priv = NULL;
|
|
return STREAM_UNSUPPORTED;
|
|
}
|
|
|
|
const stream_info_t stream_info_bdmv_dir = {
|
|
.name = "bdmv/bluray",
|
|
.open = bdmv_dir_stream_open,
|
|
.protocols = (const char*const[]){ "file", "", NULL },
|
|
};
|