- t->error = 0;
- if (errno != EINTR && errno != EAGAIN)
- t->error = -ERRNO_TO_PARA_ERROR(errno);
- return;
- }
- packet_size = ret;
- if (packet_size < UDP_AUDIO_HEADER_LEN) {
- t->error = -E_UDP_SHORT_PACKET; /* FIXME: We shouldn't fail here */
- return;
- }
- if (udp_check_magic(tmpbuf, packet_size) < 0) {
- t->error = -E_UDP_NO_MAGIC;
- return;
- }
- stream_type = udp_read_stream_type(tmpbuf);
- packet_type = udp_read_packet_type(tmpbuf);
-// PARA_INFO_LOG("packet type: %d, stream type: %d,"
-// " loaded: %u\n", packet_type,
-// (unsigned) stream_type, rn->loaded);
- switch (packet_type) {
- uint16_t header_len, payload_len;
- case UDP_EOF_PACKET:
- t->error = -E_RECV_EOF;
- return;
- case UDP_BOF_PACKET:
- PARA_INFO_LOG("bof (%zu)\n", packet_size);
- purd->have_header = 1;
- /* fall through */
- case UDP_DATA_PACKET:
- if (!purd->have_header && stream_type == UDP_HEADER_STREAM)
- /* can't use the data, wait for header */
- goto success;
- if (!enough_space(packet_size, rn->loaded)) {
- t->error = -E_OVERRUN;
- return;
- }
- if (packet_size > UDP_AUDIO_HEADER_LEN) {
- memcpy(rn->buf + rn->loaded, tmpbuf + UDP_AUDIO_HEADER_LEN,
- packet_size - UDP_AUDIO_HEADER_LEN);
- rn->loaded += packet_size - UDP_AUDIO_HEADER_LEN;
- }
- goto success;
- case UDP_HEADER_PACKET:
- if (!enough_space(packet_size, rn->loaded)) {
- t->error = -E_OVERRUN;
- return;
- }
- header_len = udp_read_header_len(tmpbuf);
- if (header_len + UDP_AUDIO_HEADER_LEN > packet_size) {
- t->error = -E_INVALID_HEADER;
- return;
- }
-// PARA_DEBUG_LOG("header packet (%zu bytes), header len: %d\n",
-// packet_size, header_len);
- if (!purd->have_header) {
- purd->have_header = 1;
- rn->loaded = header_len;
- memcpy(rn->buf, tmpbuf + UDP_AUDIO_HEADER_LEN,
- rn->loaded);
-// sleep(1);
- goto success;
- }
- payload_len = packet_size - UDP_AUDIO_HEADER_LEN - header_len;
- if (rn->loaded + payload_len > UDP_RECV_CHUNK_SIZE) {
- t->error = -E_OVERRUN;
- return;
- }
- if (payload_len)
- memcpy(rn->buf + rn->loaded, tmpbuf
- + (packet_size - payload_len), payload_len);
- rn->loaded += payload_len;