forked from len0rd/rockbox
Sync rockbox to r475 of musepack's svn.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30240 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann
parent
7bbd7daaf7
commit
7155be6ca4
6 changed files with 140 additions and 85 deletions
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@ -88,12 +88,12 @@ struct mpc_demux_t {
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/**
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* checks if a block key is valid
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* @param key the two caracters key to check
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* @return MPC_STATUS_INVALIDSV if the key is invalid, MPC_STATUS_OK else
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* @return MPC_STATUS_FAIL if the key is invalid, MPC_STATUS_OK else
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*/
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static mpc_inline mpc_status mpc_check_key(char * key)
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{
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if (key[0] < 65 || key[0] > 90 || key[1] < 65 || key[1] > 90)
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return MPC_STATUS_INVALIDSV;
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return MPC_STATUS_FAIL;
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return MPC_STATUS_OK;
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}
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@ -114,6 +114,9 @@ void streaminfo_gain(mpc_streaminfo* si, const mpc_bits_reader * r_in);
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// mpc_decoder.c
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void mpc_decoder_reset_scf(mpc_decoder * d, int value);
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#define MPC_IS_FAILURE(X) ((int)(X) < (int)MPC_STATUS_OK)
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#define MPC_AUTO_FAIL(X) { mpc_status s = (X); if (MPC_IS_FAILURE(s)) return s; }
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#ifdef __cplusplus
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}
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#endif
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@ -136,6 +136,8 @@ mpc_int32_t mpc_bits_golomb_dec(mpc_bits_reader * r, const mpc_uint_t k)
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mpc_uint32_t mpc_bits_log_dec(mpc_bits_reader * r, mpc_uint_t max)
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{
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mpc_uint32_t value = 0;
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if (max == 0)
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return 0;
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if (log2[max - 1] > 1)
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value = mpc_bits_read(r, log2[max - 1] - 1);
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if (value >= log2_lost[max - 1])
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@ -610,7 +610,7 @@ static void mpc_decoder_read_bitstream_sv8(mpc_decoder * d, mpc_bits_reader * r,
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}
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if (d->ms) {
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int cnt = 0, tot = 0;
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mpc_uint_t cnt = 0, tot = 0;
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mpc_uint32_t tmp = 0;
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for( n = 0; n < Max_used_Band; n++)
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if ( d->Res_L[n] != 0 || d->Res_R[n] != 0 )
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@ -687,10 +687,10 @@ static void mpc_decoder_read_bitstream_sv8(mpc_decoder * d, mpc_bits_reader * r,
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/***************************** Samples ****************************/
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for ( n = 0; n < Max_used_Band; n++ ) {
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mpc_int16_t *q = d->Q[n].L, Res = d->Res_L[n];
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static const int thres[] = {0, 0, 3, 0, 0, 1, 3, 4, 8};
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static const mpc_uint32_t thres[] = {0, 0, 3, 0, 0, 1, 3, 4, 8};
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do {
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mpc_uint32_t nbit;
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mpc_int32_t k = 0, idx = 1, dc;
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mpc_uint32_t k = 0, idx = 1, dc;
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if (Res != 0) {
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if (Res == 2) {
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Tables[0] = & mpc_can_Q [0][0];
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@ -706,7 +706,7 @@ static void mpc_decoder_read_bitstream_sv8(mpc_decoder * d, mpc_bits_reader * r,
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} else if (Res == 1) {
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Table = & mpc_can_Q1;
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for( ; k < 36; ){
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int kmax = k + 18;
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mpc_uint32_t kmax = k + 18;
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mpc_uint_t cnt = mpc_bits_can_dec(r, Table);
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idx = 0;
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if (cnt > 0 && cnt < 18)
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@ -124,7 +124,7 @@ mpc_demux_fill(mpc_demux * d, mpc_uint32_t min_bytes, int flags)
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* @param fpos position in the stream in bits from the beginning of mpc datas
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* @param min_bytes number of bytes to load after seeking
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*/
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static void
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static mpc_status
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mpc_demux_seek(mpc_demux * d, mpc_seek_t fpos, mpc_uint32_t min_bytes) {
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// d->bits_reader.buff - d->buffer = current byte position within buffer
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// d->bytes_total = buffer is filled with bytes_total bytes
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@ -143,7 +143,8 @@ mpc_demux_seek(mpc_demux * d, mpc_seek_t fpos, mpc_uint32_t min_bytes) {
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if (d->si.stream_version == 7)
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next_pos = ((next_pos - d->si.header_position) & (-1 << 2)) + d->si.header_position;
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buf_fpos = fpos - (next_pos << 3);
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d->r->seek(d->r, (mpc_int32_t) next_pos);
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if (!d->r->seek(d->r, (mpc_int32_t) next_pos))
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return MPC_STATUS_FAIL;
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mpc_demux_clear_buff(d);
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if (d->si.stream_version == 7)
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mpc_demux_fill(d, MAX_BUFFER_SIZE, MPC_BUFFER_FULL | MPC_BUFFER_SWAP);
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@ -152,6 +153,8 @@ mpc_demux_seek(mpc_demux * d, mpc_seek_t fpos, mpc_uint32_t min_bytes) {
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d->bits_reader.buff += buf_fpos >> 3;
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d->bits_reader.count = 8 - (buf_fpos & 7);
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}
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return MPC_STATUS_OK;
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}
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/**
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@ -171,7 +174,7 @@ static mpc_seek_t mpc_demux_pos(mpc_demux * d)
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*
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* @param d demuxer context
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* @return size of tag, in bytes
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* @return MPC_STATUS_FILE on errors of any kind
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* @return MPC_STATUS_FAIL on errors of any kind
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*/
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static mpc_int32_t mpc_demux_skip_id3v2(mpc_demux * d)
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{
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@ -194,7 +197,7 @@ static mpc_int32_t mpc_demux_skip_id3v2(mpc_demux * d)
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tmp[0] = mpc_bits_read(&d->bits_reader, 8); // read flags
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footerPresent = tmp[0] & 0x10;
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if ( tmp[0] & 0x0F )
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return MPC_STATUS_FILE; // not (yet???) allowed
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return MPC_STATUS_FAIL; // not (yet???) allowed
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tmp[0] = mpc_bits_read(&d->bits_reader, 8); // read size
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tmp[1] = mpc_bits_read(&d->bits_reader, 8); // read size
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@ -202,7 +205,7 @@ static mpc_int32_t mpc_demux_skip_id3v2(mpc_demux * d)
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tmp[3] = mpc_bits_read(&d->bits_reader, 8); // read size
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if ( (tmp[0] | tmp[1] | tmp[2] | tmp[3]) & 0x80 )
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return MPC_STATUS_FILE; // not allowed
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return MPC_STATUS_FAIL; // not allowed
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// read headerSize (syncsave: 4 * $0xxxxxxx = 28 significant bits)
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size = tmp[0] << 21;
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@ -216,7 +219,8 @@ static mpc_int32_t mpc_demux_skip_id3v2(mpc_demux * d)
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// This is called before file headers get read, streamversion etc isn't yet known, demuxing isn't properly initialized and we can't call mpc_demux_seek() from here.
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mpc_demux_clear_buff(d);
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if (!d->r->seek(d->r, size)) return MPC_STATUS_FILE;
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if (!d->r->seek(d->r, size))
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return MPC_STATUS_FAIL;
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return size;
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}
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@ -237,7 +241,7 @@ static mpc_status mpc_demux_seek_init(mpc_demux * d)
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}
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d->seek_table = g_seek_table;
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if (d->seek_table == 0)
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return MPC_STATUS_FILE;
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return MPC_STATUS_FAIL;
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d->seek_table[0] = (mpc_seek_t)mpc_demux_pos(d);
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d->seek_table_size = 1;
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@ -245,7 +249,7 @@ static mpc_status mpc_demux_seek_init(mpc_demux * d)
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}
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/* rockbox: do not use
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static void mpc_demux_ST(mpc_demux * d)
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static mpc_status mpc_demux_ST(mpc_demux * d)
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{
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mpc_uint64_t tmp;
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mpc_seek_t * table, last[2];
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@ -254,7 +258,7 @@ static void mpc_demux_ST(mpc_demux * d)
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mpc_uint32_t file_table_size;
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if (d->seek_table != 0)
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return;
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return MPC_STATUS_OK;
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mpc_bits_get_size(&r, &tmp);
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file_table_size = (mpc_seek_t) tmp;
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@ -276,7 +280,7 @@ static void mpc_demux_ST(mpc_demux * d)
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table[0] = last[0] = (mpc_seek_t) (tmp + d->si.header_position) * 8;
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if (d->seek_table_size == 1)
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return;
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return MPC_STATUS_OK;
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mpc_bits_get_size(&r, &tmp);
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last[1] = (mpc_seek_t) (tmp + d->si.header_position) * 8;
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@ -292,9 +296,10 @@ static void mpc_demux_ST(mpc_demux * d)
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if ((i & mask) == 0)
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table[i >> diff_pwr] = last[i & 1];
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}
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return MPC_STATUS_OK;
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}
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static void mpc_demux_SP(mpc_demux * d, int size, int block_size)
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static mpc_status mpc_demux_SP(mpc_demux * d, int size, int block_size)
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{
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mpc_seek_t cur;
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mpc_uint64_t ptr;
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@ -303,19 +308,27 @@ static void mpc_demux_SP(mpc_demux * d, int size, int block_size)
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cur = mpc_demux_pos(d);
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mpc_bits_get_size(&d->bits_reader, &ptr);
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mpc_demux_seek(d, (ptr - size) * 8 + cur, 11);
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MPC_AUTO_FAIL( mpc_demux_seek(d, (ptr - size) * 8 + cur, 11) );
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st_head_size = mpc_bits_get_block(&d->bits_reader, &b);
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if (memcmp(b.key, "ST", 2) == 0) {
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d->chap_pos = (ptr - size + b.size + st_head_size) * 8 + cur;
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d->chap_nb = -1;
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mpc_demux_fill(d, (mpc_uint32_t) b.size, 0);
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mpc_demux_ST(d);
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if (mpc_demux_fill(d, (mpc_uint32_t) b.size, 0) < b.size)
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return MPC_STATUS_FAIL;
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MPC_AUTO_FAIL( mpc_demux_ST(d) );
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}
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mpc_demux_seek(d, cur, 11 + block_size);
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return mpc_demux_seek(d, cur, 11 + block_size);
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}
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*/
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/* rockbox: not used
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static void mpc_demux_chap_find(mpc_demux * d)
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static void mpc_demux_chap_empty(mpc_demux * d) {
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free(d->chap); d->chap = 0;
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d->chap_nb = 0; // -1 for undefined, 0 for no chapters
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d->chap_pos = 0;
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}
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*/
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/* rockbox: not used
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static mpc_status mpc_demux_chap_find_inner(mpc_demux * d)
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{
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mpc_block b;
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int tag_size = 0, chap_size = 0, size, i = 0;
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@ -323,21 +336,26 @@ static void mpc_demux_chap_find(mpc_demux * d)
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d->chap_nb = 0;
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if (d->si.stream_version < 8)
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return;
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return MPC_STATUS_OK;
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if (d->chap_pos == 0) {
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mpc_uint64_t cur_pos = (d->si.header_position + 4) * 8;
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mpc_demux_seek(d, cur_pos, 11); // seek to the beginning of the stream
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MPC_AUTO_FAIL( mpc_demux_seek(d, cur_pos, 11) ); // seek to the beginning of the stream
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size = mpc_bits_get_block(&d->bits_reader, &b);
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while (memcmp(b.key, "SE", 2) != 0) {
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if (mpc_check_key(b.key) != MPC_STATUS_OK)
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return;
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mpc_uint64_t new_pos = cur_pos + (size + b.size) * 8;
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MPC_AUTO_FAIL(mpc_check_key(b.key));
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if (memcmp(b.key, "CT", 2) == 0) {
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if (d->chap_pos == 0) d->chap_pos = cur_pos;
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} else
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} else {
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d->chap_pos = 0;
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cur_pos += (size + b.size) * 8;
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mpc_demux_seek(d, cur_pos, 11);
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}
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if (new_pos <= cur_pos)
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return MPC_STATUS_FAIL;
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cur_pos = new_pos;
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MPC_AUTO_FAIL( mpc_demux_seek(d, cur_pos, 11) );
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size = mpc_bits_get_block(&d->bits_reader, &b);
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}
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if (d->chap_pos == 0)
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@ -353,24 +371,42 @@ static void mpc_demux_chap_find(mpc_demux * d)
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size = mpc_bits_get_size(&d->bits_reader, &chap_sample) + 4;
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chap_size += size;
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tag_size += b.size - size;
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mpc_demux_seek(d, d->chap_pos + (chap_size + tag_size) * 8, 20);
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MPC_AUTO_FAIL( mpc_demux_seek(d, d->chap_pos + (chap_size + tag_size) * 8, 20) );
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size = mpc_bits_get_block(&d->bits_reader, &b);
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}
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if (d->chap_nb > 0) {
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char * ptag;
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d->chap = malloc(sizeof(mpc_chap_info) * d->chap_nb + tag_size);
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if (d->chap == 0)
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return MPC_STATUS_FAIL;
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ptag = (char*)(d->chap + d->chap_nb);
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mpc_demux_seek(d, d->chap_pos, 11);
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MPC_AUTO_FAIL( mpc_demux_seek(d, d->chap_pos, 11) );
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size = mpc_bits_get_block(&d->bits_reader, &b);
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while (memcmp(b.key, "CT", 2) == 0) {
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mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, 0);
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mpc_uint_t tmp_size;
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char * tmp_ptag = ptag;
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if (mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, 0) < b.size)
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return MPC_STATUS_FAIL;
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size = mpc_bits_get_size(&d->bits_reader, &d->chap[i].sample) + 4;
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d->chap[i].gain = (mpc_uint16_t) mpc_bits_read(&d->bits_reader, 16);
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d->chap[i].peak = (mpc_uint16_t) mpc_bits_read(&d->bits_reader, 16);
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memcpy(ptag, d->bits_reader.buff + ((8 - d->bits_reader.count) >> 3), b.size - size);
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d->bits_reader.buff += b.size - size;
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tmp_size = b.size - size;
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do {
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mpc_uint_t rd_size = tmp_size;
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mpc_uint8_t * tmp_buff = d->bits_reader.buff + ((8 - d->bits_reader.count) >> 3);
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mpc_uint32_t avail_bytes = d->bytes_total + d->buffer - tmp_buff;
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rd_size = mini(rd_size, avail_bytes);
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memcpy(tmp_ptag, tmp_buff, rd_size);
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tmp_size -= rd_size;
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tmp_ptag += rd_size;
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d->bits_reader.buff += rd_size;
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mpc_demux_fill(d, tmp_size, 0);
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} while (tmp_size > 0);
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d->chap[i].tag_size = b.size - size;
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d->chap[i].tag = ptag;
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ptag += b.size - size;
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@ -380,9 +416,17 @@ static void mpc_demux_chap_find(mpc_demux * d)
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}
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d->bits_reader.buff -= size;
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return MPC_STATUS_OK;
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}
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*/
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/* rockbox: not used
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static mpc_status mpc_demux_chap_find(mpc_demux * d) {
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mpc_status s = mpc_demux_chap_find_inner(d);
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if (MPC_IS_FAILURE(s))
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mpc_demux_chap_empty(d);
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return s;
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}
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*/
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/**
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* Gets the number of chapters in the stream
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* @param d pointer to a musepack demuxer
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@ -424,7 +468,8 @@ static mpc_status mpc_demux_header(mpc_demux * d)
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*/
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// get header position
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d->si.header_position = mpc_demux_skip_id3v2(d);
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if(d->si.header_position < 0) return MPC_STATUS_FILE;
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if(d->si.header_position < 0)
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return MPC_STATUS_FAIL;
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d->si.tag_offset = d->si.total_file_length = d->r->get_size(d->r);
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@ -437,14 +482,11 @@ static mpc_status mpc_demux_header(mpc_demux * d)
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if (memcmp(magic, "MP+", 3) == 0) {
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d->si.stream_version = magic[3] & 15;
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d->si.pns = magic[3] >> 4;
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if (d->si.stream_version == 7) {
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mpc_status ret;
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mpc_demux_fill(d, 6 * 4, MPC_BUFFER_SWAP); // header block size + endian convertion
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ret = streaminfo_read_header_sv7(&d->si, &d->bits_reader);
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if (ret != MPC_STATUS_OK) return ret;
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} else {
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return MPC_STATUS_INVALIDSV;
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}
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if (d->si.stream_version != 7)
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return MPC_STATUS_FAIL;
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if (mpc_demux_fill(d, 6 * 4, MPC_BUFFER_SWAP) < 6 * 4) // header block size + endian convertion
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return MPC_STATUS_FAIL;
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MPC_AUTO_FAIL( streaminfo_read_header_sv7(&d->si, &d->bits_reader) );
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} else if (memcmp(magic, "MPCK", 4) == 0) {
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mpc_block b;
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int size;
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@ -452,31 +494,35 @@ static mpc_status mpc_demux_header(mpc_demux * d)
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size = mpc_bits_get_block(&d->bits_reader, &b);
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while( memcmp(b.key, "AP", 2) != 0 ){ // scan all blocks until audio
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if (mpc_check_key(b.key) != MPC_STATUS_OK)
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
return MPC_STATUS_FAIL;
|
||||
if (b.size > (mpc_uint64_t) MAX_BUFFER_SIZE - 11)
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, 0);
|
||||
if (memcmp(b.key, "SH", 2) == 0){
|
||||
int ret = streaminfo_read_header_sv8(&d->si, &d->bits_reader, (mpc_uint32_t) b.size);
|
||||
if (ret != MPC_STATUS_OK) return ret;
|
||||
} else if (memcmp(b.key, "RG", 2) == 0)
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
if (mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, 0) <= b.size)
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
if (memcmp(b.key, "SH", 2) == 0) {
|
||||
MPC_AUTO_FAIL( streaminfo_read_header_sv8(&d->si, &d->bits_reader, (mpc_uint32_t) b.size) );
|
||||
} else if (memcmp(b.key, "RG", 2) == 0) {
|
||||
streaminfo_gain(&d->si, &d->bits_reader);
|
||||
else if (memcmp(b.key, "EI", 2) == 0)
|
||||
} else if (memcmp(b.key, "EI", 2) == 0) {
|
||||
streaminfo_encoder_info(&d->si, &d->bits_reader);
|
||||
/* rockbox: do not use
|
||||
else if (memcmp(b.key, "SO", 2) == 0)
|
||||
mpc_demux_SP(d, size, (mpc_uint32_t) b.size);
|
||||
else if (memcmp(b.key, "ST", 2) == 0)
|
||||
mpc_demux_ST(d);
|
||||
} else if (memcmp(b.key, "SO", 2) == 0) {
|
||||
MPC_AUTO_FAIL( mpc_demux_SP(d, size, (mpc_uint32_t) b.size) );
|
||||
} else if (memcmp(b.key, "ST", 2) == 0) {
|
||||
MPC_AUTO_FAIL( mpc_demux_ST(d) );
|
||||
*/
|
||||
}
|
||||
d->bits_reader.buff += b.size;
|
||||
size = mpc_bits_get_block(&d->bits_reader, &b);
|
||||
}
|
||||
d->bits_reader.buff -= size;
|
||||
if (d->si.stream_version == 0) // si not initialized !!!
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
} else
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
return MPC_STATUS_FAIL;
|
||||
} else {
|
||||
return MPC_STATUS_FAIL;
|
||||
}
|
||||
|
||||
return MPC_STATUS_OK;
|
||||
}
|
||||
|
|
@ -519,7 +565,7 @@ void mpc_demux_get_info(mpc_demux * d, mpc_streaminfo * i)
|
|||
memcpy(i, &d->si, sizeof d->si);
|
||||
}
|
||||
|
||||
mpc_status mpc_demux_decode(mpc_demux * d, mpc_frame_info * i)
|
||||
static mpc_status mpc_demux_decode_inner(mpc_demux * d, mpc_frame_info * i)
|
||||
{
|
||||
mpc_bits_reader r;
|
||||
if (d->si.stream_version >= 8) {
|
||||
|
|
@ -532,17 +578,19 @@ mpc_status mpc_demux_decode(mpc_demux * d, mpc_frame_info * i)
|
|||
d->seek_table[d->seek_table_size] = (mpc_seek_t) mpc_demux_pos(d);
|
||||
d->seek_table_size ++;
|
||||
}
|
||||
mpc_demux_fill(d, 11, 0); // max header block size
|
||||
mpc_demux_fill(d, 11, MPC_BUFFER_FULL); // max header block size
|
||||
mpc_bits_get_block(&d->bits_reader, &b);
|
||||
while( memcmp(b.key, "AP", 2) != 0 ) { // scan all blocks until audio
|
||||
if (mpc_check_key(b.key) != MPC_STATUS_OK)
|
||||
goto error;
|
||||
MPC_AUTO_FAIL( mpc_check_key(b.key) );
|
||||
|
||||
if (memcmp(b.key, "SE", 2) == 0) { // end block
|
||||
i->bits = -1;
|
||||
return MPC_STATUS_OK;
|
||||
}
|
||||
if (mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, 0) == 0)
|
||||
goto error;
|
||||
|
||||
if (mpc_demux_fill(d, 11 + (mpc_uint32_t) b.size, MPC_BUFFER_FULL) < b.size)
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
d->bits_reader.buff += b.size;
|
||||
mpc_bits_get_block(&d->bits_reader, &b);
|
||||
}
|
||||
|
|
@ -556,7 +604,7 @@ mpc_status mpc_demux_decode(mpc_demux * d, mpc_frame_info * i)
|
|||
d->block_bits -= ((d->bits_reader.buff - r.buff) << 3) + r.count - d->bits_reader.count;
|
||||
d->block_frames--;
|
||||
if (d->block_bits < 0 || (d->block_frames == 0 && d->block_bits > 7))
|
||||
goto error;
|
||||
return MPC_STATUS_FAIL;
|
||||
} else {
|
||||
if (d->d->decoded_samples == (d->seek_table_size << d->seek_pwr) * MPC_FRAME_LENGTH) {
|
||||
d->seek_table[d->seek_table_size] = (mpc_seek_t) mpc_demux_pos(d);
|
||||
|
|
@ -568,15 +616,19 @@ mpc_status mpc_demux_decode(mpc_demux * d, mpc_frame_info * i)
|
|||
r = d->bits_reader;
|
||||
mpc_decoder_decode_frame(d->d, &d->bits_reader, i);
|
||||
if (i->bits != -1 && d->block_bits != (mpc_int32_t)(((d->bits_reader.buff - r.buff) << 3) + r.count - d->bits_reader.count))
|
||||
goto error;
|
||||
return MPC_STATUS_FAIL;
|
||||
}
|
||||
if (i->bits != -1 && d->buffer + d->bytes_total < d->bits_reader.buff + ((8 - d->bits_reader.count) >> 3))
|
||||
goto error;
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
return MPC_STATUS_OK;
|
||||
error:
|
||||
i->bits = -1; // we pretend it's end of file
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
}
|
||||
|
||||
mpc_status mpc_demux_decode(mpc_demux * d, mpc_frame_info * i) {
|
||||
mpc_status s = mpc_demux_decode_inner(d, i);
|
||||
if (MPC_IS_FAILURE(s))
|
||||
i->bits = -1; // we pretend it's end of file
|
||||
return s;
|
||||
}
|
||||
|
||||
/* rockbox: not used
|
||||
|
|
@ -654,8 +706,8 @@ mpc_status mpc_demux_seek_sample(mpc_demux * d, mpc_uint64_t destsample)
|
|||
void mpc_set_replay_level(mpc_demux * d, float level, mpc_bool_t use_gain,
|
||||
mpc_bool_t use_title, mpc_bool_t clip_prevention)
|
||||
{
|
||||
float peak = use_title ? d->si.peak_title : d->si.peak_album;
|
||||
float gain = use_title ? d->si.gain_title : d->si.gain_album;
|
||||
float peak = (float) ( use_title ? d->si.peak_title : d->si.peak_album );
|
||||
float gain = (float) ( use_title ? d->si.gain_title : d->si.gain_album );
|
||||
|
||||
if(!use_gain && !clip_prevention)
|
||||
return;
|
||||
|
|
@ -663,12 +715,12 @@ void mpc_set_replay_level(mpc_demux * d, float level, mpc_bool_t use_gain,
|
|||
if(!peak)
|
||||
peak = 1.;
|
||||
else
|
||||
peak = (1 << 15) / pow(10, peak / (20 * 256));
|
||||
peak = (float) ( (1 << 15) / pow(10, peak / (20 * 256)) );
|
||||
|
||||
if(!gain)
|
||||
gain = 1.;
|
||||
else
|
||||
gain = pow(10, (level - gain / 256) / 20);
|
||||
gain = (float) pow(10, (level - gain / 256) / 20);
|
||||
|
||||
if(clip_prevention && (peak < gain || !use_gain))
|
||||
gain = peak;
|
||||
|
|
|
|||
|
|
@ -88,13 +88,10 @@ typedef struct mpc_quantizer {
|
|||
|
||||
/// Libmpcdec error codes
|
||||
typedef enum mpc_status {
|
||||
// Success.
|
||||
MPC_STATUS_OK = 0,
|
||||
MPC_STATUS_FILE = -1,
|
||||
MPC_STATUS_SV7BETA = -2,
|
||||
MPC_STATUS_CBR = -3,
|
||||
MPC_STATUS_IS = -4,
|
||||
MPC_STATUS_BLOCKSIZE = -5,
|
||||
MPC_STATUS_INVALIDSV = -6
|
||||
// Generic failure (I/O error or invalid file).
|
||||
MPC_STATUS_FAIL = -1
|
||||
} mpc_status;
|
||||
|
||||
#define MPC_FIXED_POINT
|
||||
|
|
|
|||
|
|
@ -101,8 +101,8 @@ mpc_get_encoder_string(mpc_streaminfo* si)
|
|||
static mpc_status check_streaminfo(mpc_streaminfo * si)
|
||||
{
|
||||
if (si->max_band == 0 || si->max_band >= 32
|
||||
|| si->channels > 2)
|
||||
return MPC_STATUS_FILE;
|
||||
|| si->channels > 2 || si->channels == 0 || si->sample_freq == 0)
|
||||
return MPC_STATUS_FAIL;
|
||||
return MPC_STATUS_OK;
|
||||
}
|
||||
|
||||
|
|
@ -160,6 +160,7 @@ streaminfo_read_header_sv7(mpc_streaminfo* si, mpc_bits_reader * r)
|
|||
*/
|
||||
|
||||
if (last_frame_samples == 0) last_frame_samples = MPC_FRAME_LENGTH;
|
||||
else if (last_frame_samples > MPC_FRAME_LENGTH) return MPC_STATUS_FAIL;
|
||||
si->samples = (mpc_int64_t) frames * MPC_FRAME_LENGTH;
|
||||
if (si->is_true_gapless)
|
||||
si->samples -= (MPC_FRAME_LENGTH - last_frame_samples);
|
||||
|
|
@ -196,11 +197,11 @@ streaminfo_read_header_sv8(mpc_streaminfo* si, const mpc_bits_reader * r_in,
|
|||
|
||||
CRC = (mpc_bits_read(&r, 16) << 16) | mpc_bits_read(&r, 16);
|
||||
if (CRC != mpc_crc32(r.buff + 1 - (r.count >> 3), (int)block_size - 4))
|
||||
return MPC_STATUS_FILE;
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
si->stream_version = mpc_bits_read(&r, 8);
|
||||
if (si->stream_version != 8)
|
||||
return MPC_STATUS_INVALIDSV;
|
||||
return MPC_STATUS_FAIL;
|
||||
|
||||
mpc_bits_get_size(&r, &si->samples);
|
||||
mpc_bits_get_size(&r, &si->beg_silence);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue