diff options
Diffstat (limited to 'timeline')
| -rw-r--r-- | timeline/tl_cue.c | 436 | ||||
| -rw-r--r-- | timeline/tl_matroska.c | 51 |
2 files changed, 474 insertions, 13 deletions
diff --git a/timeline/tl_cue.c b/timeline/tl_cue.c new file mode 100644 index 0000000000..c4958a823a --- /dev/null +++ b/timeline/tl_cue.c @@ -0,0 +1,436 @@ +/* + * This file is part of mplayer2. + * + * mplayer2 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. + * + * mplayer2 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 mplayer2; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <dirent.h> +#include <stdlib.h> +#include <stdbool.h> +#include <inttypes.h> +#include <ctype.h> + +#include "talloc.h" + +#include "mp_core.h" +#include "mp_msg.h" +#include "libmpdemux/demuxer.h" +#include "path.h" +#include "bstr.h" +#include "mpcommon.h" +#include "stream/stream.h" + +// used by demuxer_cue.c +bool mp_probe_cue(struct bstr data); + +#define SECS_PER_CUE_FRAME (1.0/75.0) + +enum cue_command { + CUE_ERROR = -1, // not a valid CUE command, or an unknown extension + CUE_EMPTY, // line with whitespace only + CUE_UNUSED, // valid CUE command, but ignored by this code + CUE_FILE, + CUE_TRACK, + CUE_INDEX, + CUE_TITLE, +}; + +static const struct { + enum cue_command command; + const char *text; +} cue_command_strings[] = { + { CUE_FILE, "FILE" }, + { CUE_TRACK, "TRACK" }, + { CUE_INDEX, "INDEX" }, + { CUE_TITLE, "TITLE" }, + { CUE_UNUSED, "CATALOG" }, + { CUE_UNUSED, "CDTEXTFILE" }, + { CUE_UNUSED, "FLAGS" }, + { CUE_UNUSED, "ISRC" }, + { CUE_UNUSED, "PERFORMER" }, + { CUE_UNUSED, "POSTGAP" }, + { CUE_UNUSED, "PREGAP" }, + { CUE_UNUSED, "REM" }, + { CUE_UNUSED, "SONGWRITER" }, + { CUE_UNUSED, "MESSAGE" }, + { -1 }, +}; + +struct cue_track { + double pregap_start; // corresponds to INDEX 00 + double start; // corresponds to INDEX 01 + struct bstr filename; + int source; + struct bstr title; +}; + +static enum cue_command read_cmd(struct bstr *data, struct bstr *out_params) +{ + struct bstr line = bstr_strip_linebreaks(bstr_getline(*data, data)); + line = bstr_lstrip(line); + if (line.len == 0) + return CUE_EMPTY; + for (int n = 0; cue_command_strings[n].command != -1; n++) { + struct bstr name = bstr(cue_command_strings[n].text); + if (bstr_startswith(line, name)) { + struct bstr rest = bstr_cut(line, name.len); + if (rest.len && !strchr(WHITESPACE, rest.start[0])) + continue; + if (out_params) + *out_params = rest; + return cue_command_strings[n].command; + } + } + return CUE_ERROR; +} + +static bool eat_char(struct bstr *data, char ch) +{ + if (data->len && data->start[0] == ch) { + *data = bstr_cut(*data, 1); + return true; + } else { + return false; + } +} + +static struct bstr read_quoted(struct bstr *data) +{ + *data = bstr_lstrip(*data); + if (!eat_char(data, '"')) + return (struct bstr) {0}; + int end = bstrchr(*data, '"'); + if (end < 0) + return (struct bstr) {0}; + struct bstr res = bstr_splice(*data, 0, end); + *data = bstr_cut(*data, end + 1); + return res; +} + +// Read a 2 digit unsigned decimal integer. +// Return -1 on failure. +static int read_int_2(struct bstr *data) +{ + *data = bstr_lstrip(*data); + if (data->len && data->start[0] == '-') + return -1; + struct bstr s = *data; + int res = (int)bstrtoll(s, &s, 10); + if (data->len == s.len || data->len - s.len > 2) + return -1; + *data = s; + return res; +} + +static double read_time(struct bstr *data) +{ + struct bstr s = *data; + bool ok = true; + double t1 = read_int_2(&s); + ok = eat_char(&s, ':') && ok; + double t2 = read_int_2(&s); + ok = eat_char(&s, ':') && ok; + double t3 = read_int_2(&s); + ok = ok && t1 >= 0 && t2 >= 0 && t3 >= 0; + return ok ? t1 * 60.0 + t2 + t3 * SECS_PER_CUE_FRAME : 0; +} + +static struct bstr skip_utf8_bom(struct bstr data) +{ + return bstr_startswith0(data, "\xEF\xBB\xBF") ? bstr_cut(data, 3) : data; +} + +// Check if the text in data is most likely CUE data. This is used by the +// demuxer code to check the file type. +// data is the start of the probed file, possibly cut off at a random point. +bool mp_probe_cue(struct bstr data) +{ + bool valid = false; + data = skip_utf8_bom(data); + for (;;) { + enum cue_command cmd = read_cmd(&data, NULL); + // End reached. Since the line was most likely cut off, don't use the + // result of the last parsing call. + if (data.len == 0) + break; + if (cmd == CUE_ERROR) + return false; + if (cmd != CUE_EMPTY) + valid = true; + } + return valid; +} + +static void add_source(struct MPContext *mpctx, struct stream *s, + struct demuxer *d) +{ + mpctx->num_sources++; + mpctx->sources = talloc_realloc(NULL, mpctx->sources, struct content_source, + mpctx->num_sources); + mpctx->sources[mpctx->num_sources - 1] = (struct content_source) { + .stream = s, + .demuxer = d, + }; +} + +static bool try_open(struct MPContext *mpctx, char *filename) +{ + struct bstr bfilename = bstr(filename); + // Avoid trying to open itself or another .cue file. Best would be + // to check the result of demuxer auto-detection, but the demuxer + // API doesn't allow this without opening a full demuxer. + if (bstr_case_endswith(bfilename, bstr(".cue")) + || bstrcasecmp(bstr(mpctx->demuxer->filename), bfilename) == 0) + return false; + + int format = 0; + struct stream *s = open_stream(filename, &mpctx->opts, &format); + if (!s) + return false; + struct demuxer *d = demux_open(&mpctx->opts, s, format, + mpctx->opts.audio_id, + mpctx->opts.video_id, + mpctx->opts.sub_id, + filename); + // Since .bin files are raw PCM data with no headers, we have to explicitly + // open them. Also, try to avoid to open files that are most likely not .bin + // files, as that would only play noise. Checking the file extension is + // fragile, but it's about the only way we have. + // TODO: maybe also could check if the .bin file is a multiple of the Audio + // CD sector size (2352 bytes) + if (!d && bstr_case_endswith(bfilename, bstr(".bin"))) { + mp_msg(MSGT_CPLAYER, MSGL_WARN, "CUE: Opening as BIN file!\n"); + d = demux_open(&mpctx->opts, s, DEMUXER_TYPE_RAWAUDIO, + mpctx->opts.audio_id, + mpctx->opts.video_id, + mpctx->opts.sub_id, + filename); + } + if (d) { + add_source(mpctx, s, d); + return true; + } + mp_msg(MSGT_CPLAYER, MSGL_ERR, "Could not open source '%s'!\n", filename); + free_stream(s); + return false; +} + +static bool open_source(struct MPContext *mpctx, struct bstr filename) +{ + void *ctx = talloc_new(NULL); + bool res = false; + + struct bstr dirname = mp_dirname(mpctx->demuxer->filename); + + struct bstr base_filename = bstr(mp_basename(bstrdup0(ctx, filename))); + if (!base_filename.len) { + mp_msg(MSGT_CPLAYER, MSGL_WARN, + "CUE: Invalid audio filename in .cue file!\n"); + } else { + char *fullname = mp_path_join(ctx, dirname, base_filename); + if (try_open(mpctx, fullname)) { + res = true; + goto out; + } + } + + // Try an audio file with the same name as the .cue file (but different + // extension). + // Rationale: this situation happens easily if the audio file or both files + // are renamed. + + struct bstr cuefile = + bstr_strip_ext(bstr(mp_basename(mpctx->demuxer->filename))); + + DIR *d = opendir(bstrdup0(ctx, dirname)); + if (!d) + goto out; + struct dirent *de; + while ((de = readdir(d))) { + char *dename0 = de->d_name; + struct bstr dename = bstr(dename0); + if (bstr_case_startswith(dename, cuefile)) { + mp_msg(MSGT_CPLAYER, MSGL_WARN, "CUE: No useful audio filename " + "in .cue file found, trying with '%s' instead!\n", + dename0); + if (try_open(mpctx, mp_path_join(ctx, dirname, dename))) { + res = true; + break; + } + } + } + closedir(d); + +out: + talloc_free(ctx); + if (!res) + mp_msg(MSGT_CPLAYER, MSGL_ERR, "CUE: Could not open audio file!\n"); + return res; +} + +// return length of the source in seconds, or -1 if unknown +static double source_get_length(struct content_source *source) +{ + struct demuxer *demuxer = source->demuxer; + double get_time_ans; + // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW + if (demuxer && demux_control(demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, + (void *) &get_time_ans) > 0) + { + return get_time_ans; + } else { + return -1; + } +} + +void build_cue_timeline(struct MPContext *mpctx) +{ + void *ctx = talloc_new(NULL); + + struct bstr data = mpctx->demuxer->file_contents; + data = skip_utf8_bom(data); + + struct cue_track *tracks = NULL; + size_t track_count = 0; + + struct bstr filename = {0}; + // Global metadata, and copied into new tracks. + struct cue_track proto_track = {0}; + struct cue_track *cur_track = &proto_track; + + while (data.len) { + struct bstr param; + switch (read_cmd(&data, ¶m)) { + case CUE_ERROR: + mp_msg(MSGT_CPLAYER, MSGL_ERR, "CUE: error parsing input file!\n"); + goto out; + case CUE_TRACK: { + track_count++; + tracks = talloc_realloc(ctx, tracks, struct cue_track, track_count); + cur_track = &tracks[track_count - 1]; + *cur_track = proto_track; + break; + } + case CUE_TITLE: + cur_track->title = read_quoted(¶m); + break; + case CUE_INDEX: { + int type = read_int_2(¶m); + double time = read_time(¶m); + if (type == 1) { + cur_track->start = time; + cur_track->filename = filename; + } else if (type == 0) { + cur_track->pregap_start = time; + } + break; + } + case CUE_FILE: + // NOTE: FILE comes before TRACK, so don't use cur_track->filename + filename = read_quoted(¶m); + break; + } + } + + if (track_count == 0) { + mp_msg(MSGT_CPLAYER, MSGL_ERR, "CUE: no tracks found!\n"); + goto out; + } + + // Remove duplicate file entries. This might be too sophisticated, since + // CUE files usually use either separate files for every single track, or + // only one file for all tracks. + + struct bstr *files = 0; + size_t file_count = 0; + + for (size_t n = 0; n < track_count; n++) { + struct cue_track *track = &tracks[n]; + track->source = -1; + for (size_t file = 0; file < file_count; file++) { + if (bstrcmp(files[file], track->filename) == 0) { + track->source = file; + break; + } + } + if (track->source == -1) { + file_count++; + files = talloc_realloc(ctx, files, struct bstr, file_count); + files[file_count - 1] = track->filename; + track->source = file_count - 1; + } + } + + add_source(mpctx, mpctx->stream, mpctx->demuxer); + + for (size_t i = 0; i < file_count; i++) { + if (!open_source(mpctx, files[i])) + goto out; + } + + struct timeline_part *timeline = talloc_array_ptrtype(NULL, timeline, + track_count + 1); + struct chapter *chapters = talloc_array_ptrtype(NULL, chapters, + track_count); + double starttime = 0; + for (int i = 0; i < track_count; i++) { + struct content_source *source = mpctx->sources + 1 + tracks[i].source; + double duration; + if (i + 1 < track_count && tracks[i].source == tracks[i + 1].source) { + duration = tracks[i + 1].start - tracks[i].start; + } else { + duration = source_get_length(source); + // Two cases: 1) last track of a single-file cue, or 2) any track of + // a multi-file cue. We need to do this for 1) only because the + // timeline needs to be terminated with the length of the last + // track. + duration -= tracks[i].start; + } + if (duration < 0) { + mp_msg(MSGT_CPLAYER, MSGL_WARN, + "CUE: Can't get duration of source file!\n"); + // xxx: do something more reasonable + duration = 0.0; + } + timeline[i] = (struct timeline_part) { + .start = starttime, + .source_start = tracks[i].start, + .source = source, + }; + chapters[i] = (struct chapter) { + .start = timeline[i].start, + // might want to include other metadata here + .name = bstrdup0(chapters, tracks[i].title), + }; + starttime += duration; + } + + // apparently we need this to give the last part a non-zero length + timeline[track_count] = (struct timeline_part) { + .start = starttime, + // perhaps unused by the timeline code + .source_start = 0, + .source = timeline[0].source, + }; + + mpctx->timeline = timeline; + // the last part is not included it in the count + mpctx->num_timeline_parts = track_count + 1 - 1; + mpctx->chapters = chapters; + mpctx->num_chapters = track_count; + +out: + talloc_free(ctx); +} diff --git a/timeline/tl_matroska.c b/timeline/tl_matroska.c index 00fd6b7088..09f86b8284 100644 --- a/timeline/tl_matroska.c +++ b/timeline/tl_matroska.c @@ -21,6 +21,9 @@ #include <inttypes.h> #include <assert.h> #include <dirent.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> #include <libavutil/common.h> #include "osdep/io.h" @@ -35,6 +38,25 @@ #include "mpcommon.h" #include "stream/stream.h" +struct find_entry { + char *name; + int matchlen; + off_t size; +}; + +static int cmp_entry(const void *pa, const void *pb) +{ + const struct find_entry *a = pa, *b = pb; + // check "similar" filenames first + int matchdiff = b->matchlen - a->matchlen; + if (matchdiff) + return FFSIGN(matchdiff); + // check small files first + off_t sizediff = a->size - b->size; + if (sizediff) + return FFSIGN(sizediff); + return 0; +} static char **find_files(const char *original_file, const char *suffix) { @@ -48,9 +70,8 @@ static char **find_files(const char *original_file, const char *suffix) talloc_free(tmpmem); return results; } + struct find_entry *entries = NULL; struct dirent *ep; - char ***names_by_matchlen = talloc_zero_array(tmpmem, char **, - strlen(basename) + 1); int num_results = 0; while ((ep = readdir(dp))) { int suffix_offset = strlen(ep->d_name) - strlen(suffix); @@ -67,22 +88,26 @@ static char **find_files(const char *original_file, const char *suffix) int matchlen = 0; while (*s1 && *s1++ == *s2++) matchlen++; - int oldcount = MP_TALLOC_ELEMS(names_by_matchlen[matchlen]); - names_by_matchlen[matchlen] = talloc_realloc(names_by_matchlen, - names_by_matchlen[matchlen], - char *, oldcount + 1); - names_by_matchlen[matchlen][oldcount] = name; + // be a bit more fuzzy about matching the filename + matchlen = (matchlen + 3) / 5; + + struct stat statbuf; + if (stat(name, &statbuf) != 0) + continue; + off_t size = statbuf.st_size; + + entries = talloc_realloc(entries, entries, struct find_entry, + num_results + 1); + entries[num_results] = (struct find_entry) { name, matchlen, size }; num_results++; } closedir(dp); + // NOTE: maybe should make it compare pointers instead + qsort(entries, num_results, sizeof(struct find_entry), cmp_entry); results = talloc_realloc(NULL, results, char *, num_results); - char **resptr = results; - for (int i = strlen(basename); i >= 0; i--) { - char **p = names_by_matchlen[i]; - for (int j = 0; j < talloc_get_size(p) / sizeof(char *); j++) - *resptr++ = p[j]; + for (int i = 0; i < num_results; i++) { + results[i] = entries[i].name; } - assert(resptr == results + num_results); talloc_free(tmpmem); return results; } |