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🎥 Command line media player
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C
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#include <assert.h>#include "config.h"#include "playlist.h"#include "common/common.h"#include "common/global.h"#include "common/msg.h"#include "mpv_talloc.h"#include "options/path.h"
#include "demux/demux.h"#include "stream/stream.h"
struct playlist_entry *playlist_entry_new(const char *filename){ struct playlist_entry *e = talloc_zero(NULL, struct playlist_entry); char *local_filename = mp_file_url_to_filename(e, bstr0(filename)); e->filename = local_filename ? local_filename : talloc_strdup(e, filename); e->stream_flags = STREAM_ORIGIN_DIRECT; e->original_index = -1; return e;}
void playlist_entry_add_param(struct playlist_entry *e, bstr name, bstr value){ struct playlist_param p = {bstrdup(e, name), bstrdup(e, value)}; MP_TARRAY_APPEND(e, e->params, e->num_params, p);}
void playlist_entry_add_params(struct playlist_entry *e, struct playlist_param *params, int num_params){ for (int n = 0; n < num_params; n++) playlist_entry_add_param(e, params[n].name, params[n].value);}
static void playlist_update_indexes(struct playlist *pl, int start, int end){ start = MPMAX(start, 0); end = end < 0 ? pl->num_entries : MPMIN(end, pl->num_entries);
for (int n = start; n < end; n++) pl->entries[n]->pl_index = n;}
void playlist_add(struct playlist *pl, struct playlist_entry *add){ MP_TARRAY_APPEND(pl, pl->entries, pl->num_entries, add); add->pl = pl; add->pl_index = pl->num_entries - 1; talloc_steal(pl, add);}
void playlist_entry_unref(struct playlist_entry *e){ e->reserved--; if (e->reserved < 0) { assert(!e->pl); talloc_free(e); }}
void playlist_remove(struct playlist *pl, struct playlist_entry *entry){ assert(pl && entry->pl == pl);
if (pl->current == entry) { pl->current = playlist_entry_get_rel(entry, 1); pl->current_was_replaced = true; }
MP_TARRAY_REMOVE_AT(pl->entries, pl->num_entries, entry->pl_index); playlist_update_indexes(pl, entry->pl_index, -1);
entry->pl = NULL; entry->pl_index = -1; ta_set_parent(entry, NULL);
entry->removed = true; playlist_entry_unref(entry);}
void playlist_clear(struct playlist *pl){ for (int n = pl->num_entries - 1; n >= 0; n--) playlist_remove(pl, pl->entries[n]); assert(!pl->current); pl->current_was_replaced = false;}
void playlist_clear_except_current(struct playlist *pl){ for (int n = pl->num_entries - 1; n >= 0; n--) { if (pl->entries[n] != pl->current) playlist_remove(pl, pl->entries[n]); }}
// Moves the entry so that it takes "at"'s place (or move to end, if at==NULL).void playlist_move(struct playlist *pl, struct playlist_entry *entry, struct playlist_entry *at){ if (entry == at) return;
assert(entry && entry->pl == pl); assert(!at || at->pl == pl);
int index = at ? at->pl_index : pl->num_entries; MP_TARRAY_INSERT_AT(pl, pl->entries, pl->num_entries, index, entry);
int old_index = entry->pl_index; if (old_index >= index) old_index += 1; MP_TARRAY_REMOVE_AT(pl->entries, pl->num_entries, old_index);
playlist_update_indexes(pl, MPMIN(index - 1, old_index - 1), MPMAX(index + 1, old_index + 1));}
void playlist_add_file(struct playlist *pl, const char *filename){ playlist_add(pl, playlist_entry_new(filename));}
void playlist_shuffle(struct playlist *pl){ for (int n = 0; n < pl->num_entries; n++) pl->entries[n]->original_index = n; for (int n = 0; n < pl->num_entries - 1; n++) { int j = (int)((double)(pl->num_entries - n) * rand() / (RAND_MAX + 1.0)); MPSWAP(struct playlist_entry *, pl->entries[n], pl->entries[n + j]); } playlist_update_indexes(pl, 0, -1);}
#define CMP_INT(a, b) ((a) == (b) ? 0 : ((a) > (b) ? 1 : -1))
static int cmp_unshuffle(const void *a, const void *b){ struct playlist_entry *ea = *(struct playlist_entry **)a; struct playlist_entry *eb = *(struct playlist_entry **)b;
if (ea->original_index >= 0 && ea->original_index != eb->original_index) return CMP_INT(ea->original_index, eb->original_index); return CMP_INT(ea->pl_index, eb->pl_index);}
void playlist_unshuffle(struct playlist *pl){ if (pl->num_entries) qsort(pl->entries, pl->num_entries, sizeof(pl->entries[0]), cmp_unshuffle); playlist_update_indexes(pl, 0, -1);}
// (Explicitly ignores current_was_replaced.)struct playlist_entry *playlist_get_first(struct playlist *pl){ return pl->num_entries ? pl->entries[0] : NULL;}
// (Explicitly ignores current_was_replaced.)struct playlist_entry *playlist_get_last(struct playlist *pl){ return pl->num_entries ? pl->entries[pl->num_entries - 1] : NULL;}
struct playlist_entry *playlist_get_next(struct playlist *pl, int direction){ assert(direction == -1 || direction == +1); if (!pl->current) return NULL; assert(pl->current->pl == pl); if (direction < 0) return playlist_entry_get_rel(pl->current, -1); return pl->current_was_replaced ? pl->current : playlist_entry_get_rel(pl->current, 1);}
// (Explicitly ignores current_was_replaced.)struct playlist_entry *playlist_entry_get_rel(struct playlist_entry *e, int direction){ assert(direction == -1 || direction == +1); if (!e->pl) return NULL; return playlist_entry_from_index(e->pl, e->pl_index + direction);}
void playlist_add_base_path(struct playlist *pl, bstr base_path){ if (base_path.len == 0 || bstrcmp0(base_path, ".") == 0) return; for (int n = 0; n < pl->num_entries; n++) { struct playlist_entry *e = pl->entries[n]; if (!mp_is_url(bstr0(e->filename))) { char *new_file = mp_path_join_bstr(e, base_path, bstr0(e->filename)); talloc_free(e->filename); e->filename = new_file; } }}
// Add redirected_from as new redirect entry to each item in pl.void playlist_add_redirect(struct playlist *pl, const char *redirected_from){ for (int n = 0; n < pl->num_entries; n++) { struct playlist_entry *e = pl->entries[n]; if (e->num_redirects >= 10) // arbitrary limit for sanity continue; char *s = talloc_strdup(e, redirected_from); if (s) MP_TARRAY_APPEND(e, e->redirects, e->num_redirects, s); }}
void playlist_set_stream_flags(struct playlist *pl, int flags){ for (int n = 0; n < pl->num_entries; n++) pl->entries[n]->stream_flags = flags;}
static void playlist_transfer_entries_to(struct playlist *pl, int dst_index, struct playlist *source_pl){ assert(pl != source_pl);
int count = source_pl->num_entries; MP_TARRAY_INSERT_N_AT(pl, pl->entries, pl->num_entries, dst_index, count);
for (int n = 0; n < count; n++) { struct playlist_entry *e = source_pl->entries[n]; e->pl = pl; e->pl_index = dst_index + n; pl->entries[e->pl_index] = e; talloc_steal(pl, e); }
playlist_update_indexes(pl, dst_index + count, -1); source_pl->num_entries = 0;}
// Move all entries from source_pl to pl, appending them after the current entry// of pl. source_pl will be empty, and all entries have changed ownership to pl.void playlist_transfer_entries(struct playlist *pl, struct playlist *source_pl){
int add_at = pl->num_entries; if (pl->current) { add_at = pl->current->pl_index + 1; if (pl->current_was_replaced) add_at += 1; } assert(add_at >= 0); assert(add_at <= pl->num_entries);
playlist_transfer_entries_to(pl, add_at, source_pl);}
void playlist_append_entries(struct playlist *pl, struct playlist *source_pl){ playlist_transfer_entries_to(pl, pl->num_entries, source_pl);}
// Return number of entries between list start and e.// Return -1 if e is not on the list, or if e is NULL.int playlist_entry_to_index(struct playlist *pl, struct playlist_entry *e){ if (!e) return -1; assert(e->pl == pl); return e->pl_index;}
int playlist_entry_count(struct playlist *pl){ return pl->num_entries;}
// Return entry for which playlist_entry_to_index() would return index.// Return NULL if not found.struct playlist_entry *playlist_entry_from_index(struct playlist *pl, int index){ return index >= 0 && index < pl->num_entries ? pl->entries[index] : NULL;}
struct playlist *playlist_parse_file(const char *file, struct mp_cancel *cancel, struct mpv_global *global){ struct mp_log *log = mp_log_new(NULL, global->log, "!playlist_parser"); mp_verbose(log, "Parsing playlist file %s...\n", file);
struct demuxer_params p = { .force_format = "playlist", .stream_flags = STREAM_ORIGIN_DIRECT, }; struct demuxer *d = demux_open_url(file, &p, cancel, global); if (!d) { talloc_free(log); return NULL; }
struct playlist *ret = NULL; if (d && d->playlist) { ret = talloc_zero(NULL, struct playlist); playlist_transfer_entries(ret, d->playlist); if (d->filetype && strcmp(d->filetype, "hls") == 0) { mp_warn(log, "This might be a HLS stream. For correct operation, " "pass it to the player\ndirectly. Don't use --playlist.\n"); } } demux_free(d);
if (ret) { mp_verbose(log, "Playlist successfully parsed\n"); } else { mp_err(log, "Error while parsing playlist\n"); }
if (ret && !ret->num_entries) mp_warn(log, "Warning: empty playlist\n");
talloc_free(log); return ret;}