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mpv/stream/stream_bluray.c
wm4 f406482d84 stream: remove useless author/comment fields 
These were printed only with -v. Most streams had them set to useless
or redundant values, so it's just badly maintained bloat.

Since we remove the "author" field too, and since this may have
copyright implications, we add the contents of the author fields to
the file headers, except if the name is already part of the file header.
2013-07-12 22:16:27 +02:00

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/*
* Copyright (C) 2010 Benjamin Zores <ben@geexbox.org>
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* Blu-ray parser/reader using libbluray
* Use 'git clone git://git.videolan.org/libbluray' to get it.
*
* TODO:
* - Add libbdnav support for menus navigation
* - Add AACS/BD+ protection detection
* - Add descrambled keys database support (KEYDB.cfg)
*
*/
#include <string.h>
#include <assert.h>
#include <libbluray/bluray.h>
#include <libavutil/common.h>
#include "config.h"
#include "talloc.h"
#include "core/mp_msg.h"
#include "core/m_struct.h"
#include "core/m_option.h"
#include "stream.h"
#include "demux/stheader.h"
#define BLURAY_SECTOR_SIZE 6144
#define BLURAY_DEFAULT_ANGLE 0
#define BLURAY_DEFAULT_CHAPTER 0
#define BLURAY_DEFAULT_TITLE 0
// 90khz ticks
#define BD_TIMEBASE (90000)
#define BD_TIME_TO_MP(x) ((x) / (double)(BD_TIMEBASE))
#define BD_TIME_FROM_MP(x) ((uint64_t)(x * BD_TIMEBASE))
char *bluray_device = NULL;
int bluray_angle = 0;
struct bluray_priv_s {
BLURAY *bd;
int current_angle;
int current_title;
};
static struct stream_priv_s {
int title;
char *device;
} bluray_stream_priv_dflts = {
BLURAY_DEFAULT_TITLE,
NULL
};
#define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
static const m_option_t bluray_stream_opts_fields[] = {
{ "hostname", ST_OFF(title), CONF_TYPE_INT, M_OPT_RANGE, 0, 99999, NULL},
{ "filename", ST_OFF(device), CONF_TYPE_STRING, 0, 0 ,0, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const struct m_struct_st bluray_stream_opts = {
"bluray",
sizeof(struct stream_priv_s),
&bluray_stream_priv_dflts,
bluray_stream_opts_fields
};
static void bluray_stream_close(stream_t *s)
{
struct bluray_priv_s *b = s->priv;
bd_close(b->bd);
b->bd = NULL;
free(b);
}
static int bluray_stream_seek(stream_t *s, int64_t pos)
{
struct bluray_priv_s *b = s->priv;
int64_t p;
p = bd_seek(b->bd, pos);
if (p == -1)
return 0;
s->pos = p;
return 1;
}
static int bluray_stream_fill_buffer(stream_t *s, char *buf, int len)
{
struct bluray_priv_s *b = s->priv;
return bd_read(b->bd, buf, len);
}
static int bluray_stream_control(stream_t *s, int cmd, void *arg)
{
struct bluray_priv_s *b = s->priv;
switch (cmd) {
case STREAM_CTRL_GET_NUM_CHAPTERS: {
BLURAY_TITLE_INFO *ti;
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
*((unsigned int *) arg) = ti->chapter_count;
bd_free_title_info(ti);
return 1;
}
case STREAM_CTRL_GET_CHAPTER_TIME: {
BLURAY_TITLE_INFO *ti;
int chapter = *(double *)arg;
double time = MP_NOPTS_VALUE;
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
if (chapter >= 0 || chapter < ti->chapter_count) {
time = BD_TIME_TO_MP(ti->chapters[chapter].start);
}
bd_free_title_info(ti);
if (time != MP_NOPTS_VALUE) {
*(double *)arg = time;
return STREAM_OK;
}
return STREAM_ERROR;
}
case STREAM_CTRL_GET_CURRENT_TITLE: {
*((unsigned int *) arg) = b->current_title;
return 1;
}
case STREAM_CTRL_GET_CURRENT_CHAPTER: {
*((unsigned int *) arg) = bd_get_current_chapter(b->bd);
return 1;
}
case STREAM_CTRL_SEEK_TO_CHAPTER: {
BLURAY_TITLE_INFO *ti;
int chapter = *((unsigned int *) arg);
int64_t pos;
int r;
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
if (chapter < 0 || chapter > ti->chapter_count) {
bd_free_title_info(ti);
return STREAM_UNSUPPORTED;
}
pos = bd_chapter_pos(b->bd, chapter);
r = bluray_stream_seek(s, pos);
bd_free_title_info(ti);
return r ? 1 : STREAM_UNSUPPORTED;
}
case STREAM_CTRL_GET_TIME_LENGTH: {
BLURAY_TITLE_INFO *ti;
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
*((double *) arg) = BD_TIME_TO_MP(ti->duration);
return STREAM_OK;
}
case STREAM_CTRL_GET_CURRENT_TIME: {
*((double *) arg) = BD_TIME_TO_MP(bd_tell_time(b->bd));
return STREAM_OK;
}
case STREAM_CTRL_SEEK_TO_TIME: {
double pts = *((double *) arg);
bd_seek_time(b->bd, BD_TIME_FROM_MP(pts));
// Reset mpv internal stream position.
stream_seek(s, bd_tell(b->bd));
// API makes it hard to determine seeking success
return STREAM_OK;
}
case STREAM_CTRL_GET_NUM_ANGLES: {
BLURAY_TITLE_INFO *ti;
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
*((int *) arg) = ti->angle_count;
bd_free_title_info(ti);
return 1;
}
case STREAM_CTRL_GET_ANGLE: {
*((int *) arg) = b->current_angle;
return 1;
}
case STREAM_CTRL_SET_ANGLE: {
BLURAY_TITLE_INFO *ti;
int angle = *((int *) arg);
ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (!ti)
return STREAM_UNSUPPORTED;
if (angle < 0 || angle > ti->angle_count) {
bd_free_title_info(ti);
return STREAM_UNSUPPORTED;
}
b->current_angle = angle;
bd_seamless_angle_change(b->bd, angle);
bd_free_title_info(ti);
return 1;
}
case STREAM_CTRL_GET_LANG: {
struct stream_lang_req *req = arg;
BLURAY_TITLE_INFO *ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
if (ti->clip_count) {
BLURAY_STREAM_INFO *si = NULL;
int count = 0;
switch (req->type) {
case STREAM_AUDIO:
count = ti->clips[0].audio_stream_count;
si = ti->clips[0].audio_streams;
break;
case STREAM_SUB:
count = ti->clips[0].pg_stream_count;
si = ti->clips[0].pg_streams;
break;
}
for (int n = 0; n < count; n++) {
BLURAY_STREAM_INFO *i = &si[n];
if (i->pid == req->id) {
snprintf(req->name, sizeof(req->name), "%.4s", i->lang);
bd_free_title_info(ti);
return STREAM_OK;
}
}
}
bd_free_title_info(ti);
return STREAM_ERROR;
}
case STREAM_CTRL_GET_START_TIME:
{
*((double *)arg) = 0;
return STREAM_OK;
}
case STREAM_CTRL_MANAGES_TIMELINE:
return STREAM_OK;
default:
break;
}
return STREAM_UNSUPPORTED;
}
static int bluray_stream_open(stream_t *s, int mode, void *opts)
{
struct stream_priv_s *p = opts;
struct bluray_priv_s *b;
BLURAY_TITLE_INFO *info = NULL;
BLURAY *bd;
int title, title_guess, title_count;
uint64_t title_size;
unsigned int angle = 0;
uint64_t max_duration = 0;
char *device = NULL;
int i;
/* find the requested device */
if (p->device)
device = p->device;
else if (bluray_device)
device = bluray_device;
if (!device) {
mp_tmsg(MSGT_OPEN, MSGL_ERR,
"No Blu-ray device/location was specified ...\n");
return STREAM_UNSUPPORTED;
}
/* open device */
bd = bd_open(device, NULL);
if (!bd) {
mp_tmsg(MSGT_OPEN, MSGL_ERR, "Couldn't open Blu-ray device: %s\n",
device);
return STREAM_UNSUPPORTED;
}
/* check for available titles on disc */
title_count = bd_get_titles(bd, TITLES_RELEVANT, angle);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_BLURAY_TITLES=%d\n", title_count);
if (!title_count) {
mp_msg(MSGT_OPEN, MSGL_ERR,
"Can't find any Blu-ray-compatible title here.\n");
bd_close(bd);
return STREAM_UNSUPPORTED;
}
/* parse titles information */
title_guess = BLURAY_DEFAULT_TITLE;
for (i = 0; i < title_count; i++) {
BLURAY_TITLE_INFO *ti;
int sec, msec;
ti = bd_get_title_info(bd, i, angle);
if (!ti)
continue;
sec = ti->duration / 90000;
msec = (ti->duration - sec) % 1000;
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_BLURAY_TITLE_%d_CHAPTERS=%d\n", i + 1, ti->chapter_count);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_BLURAY_TITLE_%d_ANGLE=%d\n", i + 1, ti->angle_count);
mp_msg(MSGT_IDENTIFY, MSGL_V,
"ID_BLURAY_TITLE_%d_LENGTH=%d.%03d\n", i + 1, sec, msec);
/* try to guess which title may contain the main movie */
if (ti->duration > max_duration) {
max_duration = ti->duration;
title_guess = i;
}
bd_free_title_info(ti);
}
/* Select current title */
title = p->title ? p->title - 1: title_guess;
title = FFMIN(title, title_count - 1);
bd_select_title(bd, title);
title_size = bd_get_title_size(bd);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_BLURAY_CURRENT_TITLE=%d\n", title + 1);
/* Get current title information */
info = bd_get_title_info(bd, title, angle);
if (!info)
goto err_no_info;
/* Select angle */
angle = bluray_angle ? bluray_angle : BLURAY_DEFAULT_ANGLE;
angle = FFMIN(angle, info->angle_count);
if (angle)
bd_select_angle(bd, angle);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_BLURAY_CURRENT_ANGLE=%d\n", angle + 1);
bd_free_title_info(info);
err_no_info:
s->fill_buffer = bluray_stream_fill_buffer;
s->seek = bluray_stream_seek;
s->close = bluray_stream_close;
s->control = bluray_stream_control;
b = calloc(1, sizeof(struct bluray_priv_s));
b->bd = bd;
b->current_angle = angle;
b->current_title = title;
s->end_pos = title_size;
s->sector_size = BLURAY_SECTOR_SIZE;
s->flags = MP_STREAM_SEEK;
s->priv = b;
s->url = strdup("br://");
mp_tmsg(MSGT_OPEN, MSGL_V, "Blu-ray successfully opened.\n");
return STREAM_OK;
}
const stream_info_t stream_info_bluray = {
"bd",
bluray_stream_open,
{ "bd", "br", "bluray", NULL },
&bluray_stream_opts,
1
};
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