diff options
Diffstat (limited to 'src/output_thread.c')
| -rw-r--r-- | src/output_thread.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/output_thread.c b/src/output_thread.c index c3e064c3f..7f1e4935e 100644 --- a/src/output_thread.c +++ b/src/output_thread.c @@ -24,6 +24,7 @@ #include "chunk.h" #include "pipe.h" #include "player_control.h" +#include "pcm_mix.h" #include "filter_plugin.h" #include "filter/convert_filter_plugin.h" #include "filter/replay_gain_filter_plugin.h" @@ -299,6 +300,35 @@ ao_filter_chunk(struct audio_output *ao, const struct music_chunk *chunk, ao->replay_gain_serial = chunk->replay_gain_serial; } + /* cross-fade */ + + if (chunk->other != NULL) { + size_t other_length; + const char *other_data = ao_chunk_data(ao, chunk->other, + &other_length); + if (other_length == 0) { + *length_r = 0; + return data; + } + + /* if the "other" chunk is longer, then that trailer + is used as-is, without mixing; it is part of the + "next" song being faded in, and if there's a rest, + it means cross-fading ends here */ + + if (length > other_length) + length = other_length; + + char *dest = pcm_buffer_get(&ao->cross_fade_buffer, + other_length); + memcpy(dest, other_data, other_length); + pcm_mix(dest, data, length, &ao->in_audio_format, + 1.0 - chunk->mix_ratio); + + data = dest; + length = other_length; + } + /* apply filter chain */ data = filter_filter(ao->filter, data, length, &length, &error); |