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-rw-r--r--demux/demux_disc.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/demux/demux_disc.c b/demux/demux_disc.c
deleted file mode 100644
index e5c63cea17..0000000000
--- a/demux/demux_disc.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * This file is part of mpv.
- *
- * mpv is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * mpv 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 Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with mpv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string.h>
-#include <math.h>
-#include <assert.h>
-
-#include "common/common.h"
-#include "common/msg.h"
-
-#include "stream/stream.h"
-#include "video/mp_image.h"
-#include "demux.h"
-#include "stheader.h"
-
-#include "video/csputils.h"
-
-struct priv {
- struct demuxer *slave;
- // streams[slave_stream_index] == our_stream
- struct sh_stream **streams;
- int num_streams;
- // This contains each DVD sub stream, or NULL. Needed because DVD packets
- // can come arbitrarily late in the MPEG stream, so the slave demuxer
- // might add the streams only later.
- struct sh_stream *dvd_subs[32];
- // Used to rewrite the raw MPEG timestamps to playback time.
- double base_time; // playback display start time of current segment
- double base_dts; // packet DTS that maps to base_time
- double last_dts; // DTS of previously demuxed packet
- bool seek_reinit; // needs reinit after seek
-
- bool is_dvd, is_cdda;
-};
-
-// If the timestamp difference between subsequent packets is this big, assume
-// a reset. It should be big enough to account for 1. low video framerates and
-// large audio frames, and 2. bad interleaving.
-#define DTS_RESET_THRESHOLD 5.0
-
-static void reselect_streams(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
- int num_slave = demux_get_num_stream(p->slave);
- for (int n = 0; n < MPMIN(num_slave, p->num_streams); n++) {
- if (p->streams[n]) {
- demuxer_select_track(p->slave, demux_get_stream(p->slave, n),
- MP_NOPTS_VALUE, demux_stream_is_selected(p->streams[n]));
- }
- }
-}
-
-static void get_disc_lang(struct stream *stream, struct sh_stream *sh, bool dvd)
-{
- struct stream_lang_req req = {.type = sh->type, .id = sh->demuxer_id};
- if (dvd && sh->type == STREAM_SUB)
- req.id = req.id & 0x1F; // mpeg ID to index
- stream_control(stream, STREAM_CTRL_GET_LANG, &req);
- if (req.name[0])
- sh->lang = talloc_strdup(sh, req.name);
-}
-
-static void add_dvd_streams(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
- struct stream *stream = demuxer->stream;
- if (!p->is_dvd)
- return;
- struct stream_dvd_info_req info;
- if (stream_control(stream, STREAM_CTRL_GET_DVD_INFO, &info) > 0) {
- for (int n = 0; n < MPMIN(32, info.num_subs); n++) {
- struct sh_stream *sh = demux_alloc_sh_stream(STREAM_SUB);
- sh->demuxer_id = n + 0x20;
- sh->codec->codec = "dvd_subtitle";
- get_disc_lang(stream, sh, true);
- // p->streams _must_ match with p->slave->streams, so we can't add
- // it yet - it has to be done when the real stream appears, which
- // could be right on start, or any time later.
- p->dvd_subs[n] = sh;
-
- // emulate the extradata
- struct mp_csp_params csp = MP_CSP_PARAMS_DEFAULTS;
- struct mp_cmat cmatrix;
- mp_get_csp_matrix(&csp, &cmatrix);
-
- char *s = talloc_strdup(sh, "");
- s = talloc_asprintf_append(s, "palette: ");
- for (int i = 0; i < 16; i++) {
- int color = info.palette[i];
- int y[3] = {(color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff};
- int c[3];
- mp_map_fixp_color(&cmatrix, 8, y, 8, c);
- color = (c[2] << 16) | (c[1] << 8) | c[0];
-
- if (i != 0)
- s = talloc_asprintf_append(s, ", ");
- s = talloc_asprintf_append(s, "%06x", color);
- }
- s = talloc_asprintf_append(s, "\n");
-
- sh->codec->extradata = s;
- sh->codec->extradata_size = strlen(s);
-
- demux_add_sh_stream(demuxer, sh);
- }
- }
-}
-
-static void add_streams(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
-
- for (int n = p->num_streams; n < demux_get_num_stream(p->slave); n++) {
- struct sh_stream *src = demux_get_stream(p->slave, n);
- if (src->type == STREAM_SUB) {
- struct sh_stream *sub = NULL;
- if (src->demuxer_id >= 0x20 && src->demuxer_id <= 0x3F)
- sub = p->dvd_subs[src->demuxer_id - 0x20];
- if (sub) {
- assert(p->num_streams == n); // directly mapped
- MP_TARRAY_APPEND(p, p->streams, p->num_streams, sub);
- continue;
- }
- }
- struct sh_stream *sh = demux_alloc_sh_stream(src->type);
- assert(p->num_streams == n); // directly mapped
- MP_TARRAY_APPEND(p, p->streams, p->num_streams, sh);
- // Copy all stream fields that might be relevant
- *sh->codec = *src->codec;
- sh->demuxer_id = src->demuxer_id;
- if (src->type == STREAM_VIDEO) {
- double ar;
- if (stream_control(demuxer->stream, STREAM_CTRL_GET_ASPECT_RATIO, &ar)
- == STREAM_OK)
- {
- struct mp_image_params f = {.w = src->codec->disp_w,
- .h = src->codec->disp_h};
- mp_image_params_set_dsize(&f, 1728 * ar, 1728);
- sh->codec->par_w = f.p_w;
- sh->codec->par_h = f.p_h;
- }
- }
- get_disc_lang(demuxer->stream, sh, p->is_dvd);
- demux_add_sh_stream(demuxer, sh);
- }
- reselect_streams(demuxer);
-}
-
-static void d_seek(demuxer_t *demuxer, double seek_pts, int flags)
-{
- struct priv *p = demuxer->priv;
-
- if (p->is_cdda) {
- demux_seek(p->slave, seek_pts, flags);
- return;
- }
-
- if (flags & SEEK_FACTOR) {
- double tmp = 0;
- stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &tmp);
- seek_pts *= tmp;
- }
-
- MP_VERBOSE(demuxer, "seek to: %f\n", seek_pts);
-
- double seek_arg[] = {seek_pts, flags};
- stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, seek_arg);
- demux_control(p->slave, DEMUXER_CTRL_RESYNC, NULL);
-
- p->seek_reinit = true;
-}
-
-static void reset_pts(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
-
- double base;
- if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_TIME, &base) < 1)
- base = 0;
-
- MP_VERBOSE(demuxer, "reset to time: %f\n", base);
-
- p->base_dts = p->last_dts = MP_NOPTS_VALUE;
- p->base_time = base;
- p->seek_reinit = false;
-}
-
-static int d_fill_buffer(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
-
- struct demux_packet *pkt = demux_read_any_packet(p->slave);
- if (!pkt)
- return 0;
-
- demux_update(p->slave);
-
- if (p->seek_reinit)
- reset_pts(demuxer);
-
- add_streams(demuxer);
- if (pkt->stream >= p->num_streams) { // out of memory?
- talloc_free(pkt);
- return 0;
- }
-
- struct sh_stream *sh = p->streams[pkt->stream];
- if (!demux_stream_is_selected(sh)) {
- talloc_free(pkt);
- return 1;
- }
-
- if (p->is_cdda) {
- demux_add_packet(sh, pkt);
- return 1;
- }
-
- MP_TRACE(demuxer, "ipts: %d %f %f\n", sh->type, pkt->pts, pkt->dts);
-
- if (sh->type == STREAM_SUB) {
- if (p->base_dts == MP_NOPTS_VALUE)
- MP_WARN(demuxer, "subtitle packet along PTS reset\n");
- } else if (pkt->dts != MP_NOPTS_VALUE) {
- // Use the very first DTS to rebase the start time of the MPEG stream
- // to the playback time.
- if (p->base_dts == MP_NOPTS_VALUE)
- p->base_dts = pkt->dts;
-
- if (p->last_dts == MP_NOPTS_VALUE)
- p->last_dts = pkt->dts;
-
- if (fabs(p->last_dts - pkt->dts) >= DTS_RESET_THRESHOLD) {
- MP_WARN(demuxer, "PTS discontinuity: %f->%f\n", p->last_dts, pkt->dts);
- p->base_time += p->last_dts - p->base_dts;
- p->base_dts = pkt->dts - pkt->duration;
- }
- p->last_dts = pkt->dts;
- }
-
- if (p->base_dts != MP_NOPTS_VALUE) {
- double delta = -p->base_dts + p->base_time;
- if (pkt->pts != MP_NOPTS_VALUE)
- pkt->pts += delta;
- if (pkt->dts != MP_NOPTS_VALUE)
- pkt->dts += delta;
- }
-
- MP_TRACE(demuxer, "opts: %d %f %f\n", sh->type, pkt->pts, pkt->dts);
-
- demux_add_packet(sh, pkt);
- return 1;
-}
-
-static void add_stream_chapters(struct demuxer *demuxer)
-{
- int num = 0;
- if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS, &num) < 1)
- return;
- for (int n = 0; n < num; n++) {
- double p = n;
- if (stream_control(demuxer->stream, STREAM_CTRL_GET_CHAPTER_TIME, &p) < 1)
- continue;
- demuxer_add_chapter(demuxer, "", p, 0);
- }
-}
-
-static int d_open(demuxer_t *demuxer, enum demux_check check)
-{
- struct priv *p = demuxer->priv = talloc_zero(demuxer, struct priv);
-
- if (check != DEMUX_CHECK_FORCE)
- return -1;
-
- struct demuxer_params params = {
- .force_format = "+lavf",
- .does_not_own_stream = true,
- };
-
- struct stream *cur = demuxer->stream;
- const char *sname = "";
- if (cur->info)
- sname = cur->info->name;
-
- p->is_cdda = strcmp(sname, "cdda") == 0;
- p->is_dvd = strcmp(sname, "dvd") == 0 ||
- strcmp(sname, "ifo") == 0 ||
- strcmp(sname, "dvdnav") == 0 ||
- strcmp(sname, "ifo_dvdnav") == 0;
-
- if (p->is_cdda)
- params.force_format = "+rawaudio";
-
- char *t = NULL;
- stream_control(demuxer->stream, STREAM_CTRL_GET_DISC_NAME, &t);
- if (t) {
- mp_tags_set_str(demuxer->metadata, "TITLE", t);
- talloc_free(t);
- }
-
- // Initialize the playback time. We need to read _some_ data to get the
- // correct stream-layer time (at least with libdvdnav).
- stream_peek(demuxer->stream, 1);
- reset_pts(demuxer);
-
- p->slave = demux_open(demuxer->stream, &params, demuxer->global);
- if (!p->slave)
- return -1;
-
- // So that we don't miss initial packets of delayed subtitle streams.
- demux_set_stream_autoselect(p->slave, true);
-
- // With cache enabled, the stream can be seekable. This causes demux_lavf.c
- // (actually libavformat/mpegts.c) to seek sometimes when reading a packet.
- // It does this to seek back a bit in case the current file position points
- // into the middle of a packet.
- if (!p->is_cdda) {
- demuxer->stream->seekable = false;
-
- // Can be seekable even if the stream isn't.
- demuxer->seekable = true;
- }
-
- add_dvd_streams(demuxer);
- add_streams(demuxer);
- add_stream_chapters(demuxer);
-
- double len;
- if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &len) >= 1)
- demuxer->duration = len;
-
- demuxer->extended_ctrls = true;
-
- return 0;
-}
-
-static void d_close(demuxer_t *demuxer)
-{
- struct priv *p = demuxer->priv;
- demux_free(p->slave);
-}
-
-static int d_control(demuxer_t *demuxer, int cmd, void *arg)
-{
- struct priv *p = demuxer->priv;
-
- switch (cmd) {
- case DEMUXER_CTRL_RESYNC:
- demux_flush(p->slave);
- break; // relay to slave demuxer
- case DEMUXER_CTRL_SWITCHED_TRACKS:
- reselect_streams(demuxer);
- return CONTROL_OK;
- }
- return demux_control(p->slave, cmd, arg);
-}
-
-const demuxer_desc_t demuxer_desc_disc = {
- .name = "disc",
- .desc = "CD/DVD/BD wrapper",
- .fill_buffer = d_fill_buffer,
- .open = d_open,
- .close = d_close,
- .seek = d_seek,
- .control = d_control,
-};