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authorMax Kellermann <max@duempel.org>2009-01-17 13:11:10 +0100
committerMax Kellermann <max@duempel.org>2009-01-17 13:11:10 +0100
commit610e79500e872a4fb25d9c8725ed188379d9fe81 (patch)
treeff94749d087c36fc5760205bd5ed662e2e68b8f4 /src/decoder_api.c
parentfd948571f884e6354883e2ecfc24bab799fc0805 (diff)
downloadmpd-610e79500e872a4fb25d9c8725ed188379d9fe81.tar.gz
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decoder_api: use music_pipe_write() instead of music_pipe_append()
Copy PCM data to the music_pipe_write() buffer, and apply replay gain / normalization to it, instead of manipulating the source buffer.
Diffstat (limited to '')
-rw-r--r--src/decoder_api.c47
1 files changed, 33 insertions, 14 deletions
diff --git a/src/decoder_api.c b/src/decoder_api.c
index da61f3110..0ddb4ab90 100644
--- a/src/decoder_api.c
+++ b/src/decoder_api.c
@@ -193,7 +193,6 @@ decoder_data(struct decoder *decoder,
{
static char *conv_buffer;
static size_t conv_buffer_size;
- size_t nbytes;
char *data;
assert(dc.state == DECODE_STATE_DECODE);
@@ -250,25 +249,45 @@ decoder_data(struct decoder *decoder,
return DECODE_COMMAND_NONE;
}
- if (replay_gain_info != NULL && (replay_gain_mode != REPLAY_GAIN_OFF))
- replay_gain_apply(replay_gain_info, data, length,
- &dc.out_audio_format);
- else if (normalizationEnabled)
- normalizeData(data, length, &dc.out_audio_format);
-
while (length > 0) {
- nbytes = music_pipe_append(data, length,
- &dc.out_audio_format,
- data_time, bitRate);
- length -= nbytes;
- data += nbytes;
-
- if (length > 0) {
+ size_t nbytes;
+ char *dest = music_pipe_write(&dc.out_audio_format,
+ data_time, bitRate,
+ &nbytes);
+ if (dest == NULL) {
+ /* the music pipe is full: wait for more
+ room */
enum decoder_command cmd =
need_chunks(is, nbytes == 0);
if (cmd != DECODE_COMMAND_NONE)
return cmd;
+ continue;
}
+
+ assert(nbytes > 0);
+
+ if (nbytes > length)
+ nbytes = length;
+
+ /* copy the buffer */
+
+ memcpy(dest, data, nbytes);
+
+ /* apply replay gain or normalization */
+
+ if (replay_gain_info != NULL &&
+ replay_gain_mode != REPLAY_GAIN_OFF)
+ replay_gain_apply(replay_gain_info, dest, nbytes,
+ &dc.out_audio_format);
+ else if (normalizationEnabled)
+ normalizeData(dest, nbytes, &dc.out_audio_format);
+
+ /* expand the music pipe chunk */
+
+ music_pipe_expand(&dc.out_audio_format, nbytes);
+
+ data += nbytes;
+ length -= nbytes;
}
return DECODE_COMMAND_NONE;