CHUNKS_TOTAL_OFFSET = 20,
/** The length of the audio file header (4 bytes). */
HEADER_LEN_OFFSET = 24,
- /** Was: The start of the audio file header (4 bytes). */
- AFHI_UNUSED2_OFFSET = 28,
+ /** Size of the largest chunk in bytes. (4 bytes). */
+ AFHI_MAX_CHUNK_SIZE_OFFSET = 28,
/** The seconds part of the chunk time (4 bytes). */
CHUNK_TV_TV_SEC_OFFSET = 32,
/** The microseconds part of the chunk time (4 bytes). */
write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
- write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
+ write_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET, afhi->max_chunk_size);
write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
p = buf + AFHI_INFO_STRING_OFFSET;
afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
+ afhi->max_chunk_size = read_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET);
afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
}
+/* Only used for saving the chunk table, but not for loading. */
static unsigned sizeof_chunk_table(struct afh_info *afhi)
{
- if (!afhi)
+ if (!afhi || !afhi->chunk_table)
return 0;
return 4 * (afhi->chunks_total + 1);
}
-static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
+static void save_chunk_table(struct afh_info *afhi, char *buf)
{
- int i;
- uint32_t max = 0, old = 0;
-
- for (i = 0; i <= afhi->chunks_total; i++) {
- uint32_t val = afhi->chunk_table[i];
- write_u32(buf + 4 * i, val);
- /*
- * If the first chunk is the header, do not consider it for the
- * calculation of the largest chunk size.
- */
- if (i == 0 || (i == 1 && afhi->header_len > 0)) {
- old = val;
- continue;
- }
- max = PARA_MAX(max, val - old);
- old = val;
- }
- return max;
+ uint32_t n;
+
+ if (!afhi->chunk_table)
+ return;
+ for (n = 0; n <= afhi->chunks_total; n++)
+ write_u32(buf + 4 * n, afhi->chunk_table[n]);
}
-static void load_chunk_table(struct afh_info *afhi, char *buf)
+static void load_chunk_table(struct afh_info *afhi, const struct osl_object *ct)
{
int i;
+ size_t sz;
- afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
- for (i = 0; i <= afhi->chunks_total; i++)
- afhi->chunk_table[i] = read_u32(buf + 4 * i);
+ if (!ct->data || ct->size < 4) {
+ afhi->chunk_table = NULL;
+ return;
+ }
+ sz = PARA_MIN(((size_t)afhi->chunks_total + 1) * 4, ct->size) + 1;
+ afhi->chunk_table = para_malloc(sz);
+ for (i = 0; i <= afhi->chunks_total && i * 4 + 3 < ct->size; i++)
+ afhi->chunk_table[i] = read_u32(ct->data + 4 * i);
}
/**
goto err;
buf = shm_afd;
buf += sizeof(*afd);
- afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
+ save_chunk_table(&afd->afhi, buf);
+ if (afd->afhi.max_chunk_size == 0) { /* v0.5.x on-disk afhi */
+ set_max_chunk_size(&afd->afhi);
+ PARA_NOTICE_LOG("max chunk size unset, re-add required\n");
+ } else
+ PARA_INFO_LOG("using max chunk size from afhi\n");
+ afd->max_chunk_size = afd->afhi.max_chunk_size;
*(struct audio_file_data *)shm_afd = *afd;
shm_detach(shm_afd);
return shmid;
{
void *shm_afd;
int ret;
+ struct osl_object obj;
ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
if (ret < 0)
return ret;
+ ret = shm_size(shmid, &obj.size);
+ if (ret < 0)
+ goto detach;
*afd = *(struct audio_file_data *)shm_afd;
- load_chunk_table(&afd->afhi, shm_afd + sizeof(*afd));
+ obj.data = shm_afd + sizeof(*afd);
+ obj.size -= sizeof(*afd);
+ load_chunk_table(&afd->afhi, &obj);
+ ret = 1;
+detach:
shm_detach(shm_afd);
- return 1;
+ return ret;
}
static int get_local_time(uint64_t *seconds, char *buf, size_t size,
(long unsigned) d->afhi.chunk_tv.tv_usec
);
buf = chunk_table_obj.data;
- for (i = 0; i <= d->afhi.chunks_total; i++)
+ for (
+ i = 0;
+ i <= d->afhi.chunks_total && 4 * i + 3 < chunk_table_obj.size;
+ i++
+ )
para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
para_printf(b, "\n");
ret = 1;
WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
afhi->chunks_total);
+ WRITE_STATUS_ITEM(b, SI_MAX_CHUNK_SIZE, "%" PRIu32 "\n",
+ afhi->max_chunk_size);
WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
AFTCOL_CHUNKS, &chunk_table_obj));
- if (ret < 0)
- return ret;
+ if (ret < 0) {
+ if (!afh_supports_dynamic_chunks(d->afsi.audio_format_id))
+ return ret;
+ PARA_INFO_LOG("no chunk table for %s\n", d->path);
+ chunk_table_obj.data = NULL;
+ chunk_table_obj.size = 0;
+ } else {
+ PARA_INFO_LOG("chunk table: %zu bytes\n", chunk_table_obj.size);
+ }
ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
if (ret < 0)
goto out;
save_afsi(&new_afsi, &afsi_obj); /* in-place update */
afd->audio_format_id = d->afsi.audio_format_id;
- load_chunk_table(&afd->afhi, chunk_table_obj.data);
+ load_chunk_table(&afd->afhi, &chunk_table_obj);
aced.aft_row = current_aft_row;
aced.old_afsi = &d->afsi;
/*
ret = save_afd(afd);
out:
free(afd->afhi.chunk_table);
- osl_close_disk_object(&chunk_table_obj);
+ if (chunk_table_obj.data)
+ osl_close_disk_object(&chunk_table_obj);
if (ret < 0) {
PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
ret = score_delete(current_aft_row);
&objs[AFTCOL_AFHI]));
if (ret < 0)
goto out;
+ /* truncate the file to size zero if there is no chunk table */
ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
&objs[AFTCOL_CHUNKS]));
if (ret < 0)
ret = get_afsi_object_of_row(row, &target_afsi_obj);
if (ret < 0)
return ret;
- load_afsi(&target_afsi, &target_afsi_obj);
+ ret = load_afsi(&target_afsi, &target_afsi_obj);
+ if (ret < 0)
+ return ret;
old_afsi = target_afsi;
if (cad->copy_all || y_given)
target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
projects / paraslash.git / blobdiff