Split mplayer.c

mplayer.c was a bit too big. Split it into multiple files. I hope the
way it's split makes sense. Maybe some things don't make too much sense,
or go against intuition. These will fixed as soon as I notice them.

Some files are a bit questionable (misc.c, osd.c, configfiles.c), and
suggestions how to organize this better are welcome.

Regressions are possible due to reorganized include statements.
Obviously I didn't just copy mplayer.c's orgy of include statements, but
recreated them for each file. It's easily possible that there are
oversights and mistakes, which will show up on other platforms.

There is one actual change: the public avutil.h include is removed from
encode.h, and I tried to replace most FFMIN/FFMAX/av_clip uses. I
consider using libavutil too much as dangerous, because the set of
include files they recursively pull in is rather arbitrary and is
different between FFmpeg and Libav.

1 files changed, 355 insertions, 0 deletions

diff --git a/mpvcore/player/configfiles.c b/mpvcore/player/configfiles.c
new file mode 100644
index 0000000000..1c75231365
--- /dev/null
+++ b/mpvcore/player/configfiles.c
@@ -0,0 +1,355 @@
+/*
+ * 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.
+ */
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include <libavutil/md5.h>
+
+#include "config.h"
+#include "talloc.h"
+
+#include "osdep/io.h"
+
+#include "mpvcore/mp_msg.h"
+#include "mpvcore/path.h"
+#include "mpvcore/m_config.h"
+#include "mpvcore/parser-cfg.h"
+#include "mpvcore/playlist.h"
+#include "mpvcore/options.h"
+#include "mpvcore/m_property.h"
+
+#include "stream/stream.h"
+
+#include "mp_core.h"
+#include "command.h"
+
+#define DEF_CONFIG "# Write your default config options here!\n\n\n"
+
+bool mp_parse_cfgfiles(struct MPContext *mpctx)
+{
+    struct MPOpts *opts = mpctx->opts;
+    m_config_t *conf = mpctx->mconfig;
+    char *conffile;
+    int conffile_fd;
+    if (!opts->load_config)
+        return true;
+    if (!m_config_parse_config_file(conf, MPLAYER_CONFDIR "/mpv.conf", 0) < 0)
+        return false;
+    mp_mk_config_dir(NULL);
+    if ((conffile = mp_find_user_config_file("config")) == NULL)
+        MP_ERR(mpctx, "mp_find_user_config_file(\"config\") problem\n");
+    else {
+        if ((conffile_fd = open(conffile, O_CREAT | O_EXCL | O_WRONLY,
+                    0666)) != -1) {
+            MP_INFO(mpctx, "Creating config file: %s\n", conffile);
+            write(conffile_fd, DEF_CONFIG, sizeof(DEF_CONFIG) - 1);
+            close(conffile_fd);
+        }
+        if (m_config_parse_config_file(conf, conffile, 0) < 0)
+            return false;
+        talloc_free(conffile);
+    }
+    return true;
+}
+
+// Set options file-local, and don't set them if the user set them via the
+// command line.
+#define FILE_LOCAL_FLAGS (M_SETOPT_BACKUP | M_SETOPT_PRESERVE_CMDLINE)
+
+#define PROFILE_CFG_PROTOCOL "protocol."
+
+void mp_load_per_protocol_config(m_config_t *conf, const char * const file)
+{
+    char *str;
+    char protocol[strlen(PROFILE_CFG_PROTOCOL) + strlen(file) + 1];
+    m_profile_t *p;
+
+    /* does filename actually uses a protocol ? */
+    if (!mp_is_url(bstr0(file)))
+        return;
+    str = strstr(file, "://");
+    if (!str)
+        return;
+
+    sprintf(protocol, "%s%s", PROFILE_CFG_PROTOCOL, file);
+    protocol[strlen(PROFILE_CFG_PROTOCOL) + strlen(file) - strlen(str)] = '\0';
+    p = m_config_get_profile0(conf, protocol);
+    if (p) {
+        mp_tmsg(MSGT_CPLAYER, MSGL_INFO,
+                "Loading protocol-related profile '%s'\n", protocol);
+        m_config_set_profile(conf, p, FILE_LOCAL_FLAGS);
+    }
+}
+
+#define PROFILE_CFG_EXTENSION "extension."
+
+void mp_load_per_extension_config(m_config_t *conf, const char * const file)
+{
+    char *str;
+    char extension[strlen(PROFILE_CFG_EXTENSION) + 8];
+    m_profile_t *p;
+
+    /* does filename actually have an extension ? */
+    str = strrchr(file, '.');
+    if (!str)
+        return;
+
+    sprintf(extension, PROFILE_CFG_EXTENSION);
+    strncat(extension, ++str, 7);
+    p = m_config_get_profile0(conf, extension);
+    if (p) {
+        mp_tmsg(MSGT_CPLAYER, MSGL_INFO,
+                "Loading extension-related profile '%s'\n", extension);
+        m_config_set_profile(conf, p, FILE_LOCAL_FLAGS);
+    }
+}
+
+void mp_load_per_output_config(m_config_t *conf, char *cfg, char *out)
+{
+    char profile[strlen(cfg) + strlen(out) + 1];
+    m_profile_t *p;
+
+    if (!out && !out[0])
+        return;
+
+    sprintf(profile, "%s%s", cfg, out);
+    p = m_config_get_profile0(conf, profile);
+    if (p) {
+        mp_tmsg(MSGT_CPLAYER, MSGL_INFO,
+                "Loading extension-related profile '%s'\n", profile);
+        m_config_set_profile(conf, p, FILE_LOCAL_FLAGS);
+    }
+}
+
+/**
+ * Tries to load a config file (in file local mode)
+ * @return 0 if file was not found, 1 otherwise
+ */
+static int try_load_config(m_config_t *conf, const char *file, int flags)
+{
+    if (!mp_path_exists(file))
+        return 0;
+    mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Loading config '%s'\n", file);
+    m_config_parse_config_file(conf, file, flags);
+    return 1;
+}
+
+void mp_load_per_file_config(m_config_t *conf, const char * const file,
+                             bool search_file_dir)
+{
+    char *confpath;
+    char cfg[MP_PATH_MAX];
+    const char *name;
+
+    if (strlen(file) > MP_PATH_MAX - 14) {
+        mp_msg(MSGT_CPLAYER, MSGL_WARN, "Filename is too long, "
+               "can not load file or directory specific config files\n");
+        return;
+    }
+    sprintf(cfg, "%s.conf", file);
+
+    name = mp_basename(cfg);
+    if (search_file_dir) {
+        char dircfg[MP_PATH_MAX];
+        strcpy(dircfg, cfg);
+        strcpy(dircfg + (name - cfg), "mpv.conf");
+        try_load_config(conf, dircfg, FILE_LOCAL_FLAGS);
+
+        if (try_load_config(conf, cfg, FILE_LOCAL_FLAGS))
+            return;
+    }
+
+    if ((confpath = mp_find_user_config_file(name)) != NULL) {
+        try_load_config(conf, confpath, FILE_LOCAL_FLAGS);
+
+        talloc_free(confpath);
+    }
+}
+
+#define MP_WATCH_LATER_CONF "watch_later"
+
+char *mp_get_playback_resume_config_filename(const char *fname,
+                                             struct MPOpts *opts)
+{
+    char *res = NULL;
+    void *tmp = talloc_new(NULL);
+    const char *realpath = fname;
+    bstr bfname = bstr0(fname);
+    if (!mp_is_url(bfname)) {
+        char *cwd = mp_getcwd(tmp);
+        if (!cwd)
+            goto exit;
+        realpath = mp_path_join(tmp, bstr0(cwd), bstr0(fname));
+    }
+#ifdef CONFIG_DVDREAD
+    if (bstr_startswith0(bfname, "dvd://"))
+        realpath = talloc_asprintf(tmp, "%s - %s", realpath, dvd_device);
+#endif
+#ifdef CONFIG_LIBBLURAY
+    if (bstr_startswith0(bfname, "br://") || bstr_startswith0(bfname, "bd://") ||
+        bstr_startswith0(bfname, "bluray://"))
+        realpath = talloc_asprintf(tmp, "%s - %s", realpath, bluray_device);
+#endif
+    uint8_t md5[16];
+    av_md5_sum(md5, realpath, strlen(realpath));
+    char *conf = talloc_strdup(tmp, "");
+    for (int i = 0; i < 16; i++)
+        conf = talloc_asprintf_append(conf, "%02X", md5[i]);
+
+    conf = talloc_asprintf(tmp, "%s/%s", MP_WATCH_LATER_CONF, conf);
+
+    res = mp_find_user_config_file(conf);
+
+exit:
+    talloc_free(tmp);
+    return res;
+}
+
+static const char *backup_properties[] = {
+    "osd-level",
+    //"loop",
+    "speed",
+    "edition",
+    "pause",
+    "volume-restore-data",
+    "audio-delay",
+    //"balance",
+    "fullscreen",
+    "colormatrix",
+    "colormatrix-input-range",
+    "colormatrix-output-range",
+    "ontop",
+    "border",
+    "gamma",
+    "brightness",
+    "contrast",
+    "saturation",
+    "hue",
+    "deinterlace",
+    "vf",
+    "af",
+    "panscan",
+    "aid",
+    "vid",
+    "sid",
+    "sub-delay",
+    "sub-pos",
+    "sub-visibility",
+    "sub-scale",
+    "ass-use-margins",
+    "ass-vsfilter-aspect-compat",
+    "ass-style-override",
+    0
+};
+
+// Should follow what parser-cfg.c does/needs
+static bool needs_config_quoting(const char *s)
+{
+    for (int i = 0; s && s[i]; i++) {
+        unsigned char c = s[i];
+        if (!isprint(c) || isspace(c) || c == '#' || c == '\'' || c == '"')
+            return true;
+    }
+    return false;
+}
+
+void mp_write_watch_later_conf(struct MPContext *mpctx)
+{
+    void *tmp = talloc_new(NULL);
+    char *filename = mpctx->filename;
+    if (!filename)
+        goto exit;
+
+    double pos = get_current_time(mpctx);
+    if (pos == MP_NOPTS_VALUE)
+        goto exit;
+
+    mp_mk_config_dir(MP_WATCH_LATER_CONF);
+
+    char *conffile = mp_get_playback_resume_config_filename(mpctx->filename,
+                                                            mpctx->opts);
+    talloc_steal(tmp, conffile);
+    if (!conffile)
+        goto exit;
+
+    MP_INFO(mpctx, "Saving state.\n");
+
+    FILE *file = fopen(conffile, "wb");
+    if (!file)
+        goto exit;
+    fprintf(file, "start=%f\n", pos);
+    for (int i = 0; backup_properties[i]; i++) {
+        const char *pname = backup_properties[i];
+        char *val = NULL;
+        int r = mp_property_do(pname, M_PROPERTY_GET_STRING, &val, mpctx);
+        if (r == M_PROPERTY_OK) {
+            if (needs_config_quoting(val)) {
+                // e.g. '%6%STRING'
+                fprintf(file, "%s=%%%d%%%s\n", pname, (int)strlen(val), val);
+            } else {
+                fprintf(file, "%s=%s\n", pname, val);
+            }
+        }
+        talloc_free(val);
+    }
+    fclose(file);
+
+exit:
+    talloc_free(tmp);
+}
+
+void mp_load_playback_resume(m_config_t *conf, const char *file)
+{
+    char *fname = mp_get_playback_resume_config_filename(file, conf->optstruct);
+    if (fname && mp_path_exists(fname)) {
+        // Never apply the saved start position to following files
+        m_config_backup_opt(conf, "start");
+        mp_msg(MSGT_CPLAYER, MSGL_INFO, "Resuming playback. This behavior can "
+               "be disabled with --no-resume-playback.\n");
+        try_load_config(conf, fname, M_SETOPT_PRESERVE_CMDLINE);
+        unlink(fname);
+    }
+    talloc_free(fname);
+}
+
+// Returns the first file that has a resume config.
+// Compared to hashing the playlist file or contents and managing separate
+// resume file for them, this is simpler, and also has the nice property
+// that appending to a playlist doesn't interfere with resuming (especially
+// if the playlist comes from the command line).
+struct playlist_entry *mp_resume_playlist(struct playlist *playlist,
+                                          struct MPOpts *opts)
+{
+    if (!opts->position_resume)
+        return NULL;
+    for (struct playlist_entry *e = playlist->first; e; e = e->next) {
+        char *conf = mp_get_playback_resume_config_filename(e->filename, opts);
+        bool exists = conf && mp_path_exists(conf);
+        talloc_free(conf);
+        if (exists)
+            return e;
+    }
+    return NULL;
+}
+