int format_file_read (client_t *client, format_plugin_t *plugin, icefile_handle f)
{
refbuf_t *refbuf = client->refbuf;
ssize_t bytes = -1;
int unprocessed = 0;
do
{
if (refbuf == NULL)
{
if (file_in_use (f) == 0)
return -2;
refbuf = client->refbuf = refbuf_new (8192);
client->flags |= CLIENT_HAS_INTRO_CONTENT;
client->pos = refbuf->len;
client->queue_pos = 0;
}
if (client->pos < refbuf->len)
break;
if (refbuf->next)
{
//DEBUG1 ("next intro block is %d", refbuf->next->len);
client->refbuf = refbuf->next;
refbuf->next = NULL;
refbuf_release (refbuf);
client->pos = 0;
return 0;
}
if (file_in_use (f) == 0) return -2;
bytes = pread (f, refbuf->data, 8192, client->intro_offset);
if (bytes <= 0)
return bytes < 0 ? -2 : -1;
refbuf->len = bytes;
client->pos = 0;
if (plugin && plugin->align_buffer)
{
/* here the buffer may require truncating to keep the buffers aligned on
* certain boundaries */
unprocessed = plugin->align_buffer (client, plugin);
if (unprocessed == bytes)
return -1;
if (unprocessed < 0 || unprocessed > bytes)
{
unprocessed = 0;
client->connection.error = 1;
}
}
client->intro_offset += (bytes - unprocessed);
} while (1);
return refbuf->len - client->pos;
}
static int prefile_send (client_t *client)
{
int loop = 8, bytes, written = 0;
worker_t *worker = client->worker;
while (loop)
{
refbuf_t *refbuf = client->refbuf;
fh_node *fh = client->shared_data;
loop--;
if (fserve_running == 0 || client->connection.error)
return -1;
if (refbuf == NULL || client->pos == refbuf->len)
{
if (fh->finfo.fallback)
return fserve_move_listener (client);
if (refbuf == NULL || refbuf->next == NULL)
{
if (file_in_use (fh->f)) // is there a file to read from
{
if (fh->finfo.limit)
client->ops = &throttled_file_content_ops;
else
client->ops = &file_content_ops;
refbuf_release (client->refbuf);
client->refbuf = NULL;
client->pos = 0;
return client->ops->process (client);
}
if (client->respcode)
return -1;
return client_send_404 (client, NULL);
}
else
{
refbuf_t *to_go = client->refbuf;
refbuf = client->refbuf = to_go->next;
to_go->next = NULL;
refbuf_release (to_go);
}
client->pos = 0;
}
if (refbuf->flags & WRITE_BLOCK_GENERIC)
bytes = format_generic_write_to_client (client);
else
bytes = client->check_buffer (client);
if (bytes < 0)
{
client->schedule_ms = worker->time_ms + (written ? 150 : 300);
return 0;
}
written += bytes;
global_add_bitrates (global.out_bitrate, bytes, worker->time_ms);
if (written > 30000)
break;
}
return 0;
}
int format_file_read (client_t *client, format_plugin_t *plugin, icefile_handle f)
{
refbuf_t *refbuf = client->refbuf;
ssize_t bytes = -1;
int unprocessed = 0;
do
{
if (refbuf == NULL)
{
if (file_in_use (f) == 0)
return -2;
refbuf = client->refbuf = refbuf_new (8192);
client->flags |= CLIENT_HAS_INTRO_CONTENT;
client->pos = refbuf->len;
client->queue_pos = 0;
refbuf->flags |= BUFFER_LOCAL_USE;
}
if (client->pos < refbuf->len)
break;
if (refbuf->next)
{
//DEBUG1 ("next intro block is %d", refbuf->next->len);
client->refbuf = refbuf->next;
refbuf->next = NULL;
refbuf_release (refbuf);
client->pos = 0;
return 0;
}
if ((refbuf->flags & BUFFER_LOCAL_USE) == 0)
{
client_set_queue (client, NULL);
refbuf = NULL;
continue;
}
if (file_in_use (f) == 0) return -2;
bytes = pread (f, refbuf->data, 8192, client->intro_offset);
if (bytes <= 0)
return bytes < 0 ? -2 : -1;
if (client->connection.sent_bytes > 0 && client->intro_offset == 0 &&
bytes >= 10 && memcmp (refbuf->data, "ID3", 3) == 0)
{
// special case of filtering ID3 from fallback files
unsigned char *p = (unsigned char*)refbuf->data;
if (p[3] < 0xFF && p[4] < 0xFF && (p[5] & 0xF) == 0)
{
int ver = p[3], rev = p[4];
size_t size = (p[6] & 0x7f);
size = (size << 7) + (p[7] & 0x7f);
size = (size << 7) + (p[8] & 0x7f);
size = (size << 7) + (p[9] & 0x7f);
client->intro_offset = size + 10;
DEBUG3 ("Detected ID3v2 (%d.%d) in file, tag size %" PRIu64, ver, rev, (uint64_t)size);
continue;
}
}
refbuf->len = bytes;
client->pos = 0;
if (plugin && plugin->align_buffer)
{
/* here the buffer may require truncating to keep the buffers aligned on
* certain boundaries */
unprocessed = plugin->align_buffer (client, plugin);
if (unprocessed == bytes)
return -1;
if (unprocessed < 0 || unprocessed > bytes)
{
unprocessed = 0;
client->connection.error = 1;
}
}
client->intro_offset += (bytes - unprocessed);
} while (1);
return refbuf->len - client->pos;
}
