- ogg_stream_state *stream_in = para_malloc(sizeof(ogg_stream_state));
- ogg_stream_state *stream_out = para_malloc(sizeof(ogg_stream_state));
- ogg_sync_state *sync_in = para_malloc(sizeof(ogg_sync_state));
-
- ogg_sync_init(sync_in);
- vorbis_info_init(&vi);
- vorbis_comment_init(&vc);
- buf = ogg_sync_buffer(sync_in, CHUNK_SIZE);
- len = read(in, buf, CHUNK_SIZE);
- ret = -E_OGG_READ;
- if (len <= 0)
- goto err1;
- ogg_sync_wrote(sync_in, len);
- ret = -E_SYNC_PAGEOUT;
- if (ogg_sync_pageout(sync_in, &page) <= 0)
- goto err1;
- serial = ogg_page_serialno(&page);
- ogg_stream_init(stream_in, serial);
- ogg_stream_init(stream_out, serial);
- ret = ogg_stream_pagein(stream_in, &page);
- if (ret < 0) {
- ret = E_STREAM_PAGEIN;
- goto err2;
- }
- ret = ogg_stream_packetout(stream_in, &packet);
- if (ret != 1) {
- ret = -E_STREAM_PACKETOUT;
- goto err2;
- }
- ret = -E_VORBIS;
- if (vorbis_synthesis_headerin(&vi, &vc, &packet) < 0) {
- goto err2;
- } else
- PARA_INFO_LOG("channels: %i, rate: %li\n", vi.channels,
- vi.rate);
- ogg_stream_packetin(stream_out, &packet);
-
- ret = ogg_sync_pageout(sync_in, &page);
- if (ret <= 0) {
- ret = -E_SYNC_PAGEOUT;
- goto err2;
- }
- ogg_stream_pagein(stream_in, &page);
- ogg_stream_packetout(stream_in, &packet);
- ogg_stream_packetin(stream_out, &packet);
-
- ret = ogg_sync_pageout(sync_in, &page);
- if (ret <= 0) {
- ret = -E_SYNC_PAGEOUT;
- goto err2;
- }
- ogg_stream_pagein(stream_in, &page);
- ogg_stream_packetout(stream_in, &packet);
- ogg_stream_packetin(stream_out, &packet);
-
- header_len = 0;
- while (ogg_stream_flush(stream_out, &page))
- header_len += page.body_len + page.header_len;
- ret = len;
- PARA_INFO_LOG("header_len = %d\n", header_len);
-err2:
- ogg_stream_destroy(stream_in);
- ogg_stream_destroy(stream_out);
-err1:
- ogg_sync_destroy(sync_in);
- vorbis_info_clear(&vi);
- vorbis_comment_clear(&vc);
- return ret;
-}
-
-static void tunetable(void)
-{
- int i = 1, j = -1, lp = 1;
- while (i < num_chunks) {
- if (chunk_table[i] == chunk_table[lp]) {
- i++;
- continue;
- }
- if (j < 0)
- tv_scale(i + 2, &af->chunk_tv, &af->eof_tv);
- for (j = lp; j < i; j++)
- chunk_table[j] = chunk_table[i];
- lp = i;
- }
-#if 1
- for (i = 2; i < num_chunks; i++)
- if (chunk_table[i] != chunk_table[1])
- break;
- lp = i;
- for (i = 2; i < num_chunks - lp; i++)
- chunk_table[i] = chunk_table[i + lp];
-#endif
-}
-