diff options
Diffstat (limited to 'src/decoder/wavpack_plugin.c')
| -rw-r--r-- | src/decoder/wavpack_plugin.c | 47 |
1 files changed, 35 insertions, 12 deletions
diff --git a/src/decoder/wavpack_plugin.c b/src/decoder/wavpack_plugin.c index 9b32a79f2..dffa078f9 100644 --- a/src/decoder/wavpack_plugin.c +++ b/src/decoder/wavpack_plugin.c @@ -123,6 +123,33 @@ format_samples_float(G_GNUC_UNUSED int bytes_per_sample, void *buffer, } } +/** + * Choose a MPD sample format from libwavpacks' number of bits. + */ +static enum sample_format +wavpack_bits_to_sample_format(bool is_float, int bytes_per_sample) +{ + if (is_float) + return SAMPLE_FORMAT_S24_P32; + + switch (bytes_per_sample) { + case 1: + return SAMPLE_FORMAT_S8; + + case 2: + return SAMPLE_FORMAT_S16; + + case 3: + return SAMPLE_FORMAT_S24_P32; + + case 4: + return SAMPLE_FORMAT_S32; + + default: + return SAMPLE_FORMAT_UNDEFINED; + } +} + /* * This does the main decoding thing. * Requires an already opened WavpackContext. @@ -132,7 +159,8 @@ wavpack_decode(struct decoder *decoder, WavpackContext *wpc, bool can_seek, struct replay_gain_info *replay_gain_info) { GError *error = NULL; - unsigned bits; + bool is_float; + enum sample_format sample_format; struct audio_format audio_format; format_samples_t format_samples; char chunk[CHUNK_SIZE]; @@ -141,19 +169,14 @@ wavpack_decode(struct decoder *decoder, WavpackContext *wpc, bool can_seek, int bytes_per_sample, output_sample_size; int position; - bits = WavpackGetBitsPerSample(wpc); - - /* round bitwidth to 8-bit units */ - bits = (bits + 7) & (~7); - /* MPD handles max 32-bit samples */ - if (bits > 32) - bits = 32; - - if ((WavpackGetMode(wpc) & MODE_FLOAT) == MODE_FLOAT) - bits = 24; + is_float = (WavpackGetMode(wpc) & MODE_FLOAT) != 0; + sample_format = + wavpack_bits_to_sample_format(is_float, + WavpackGetBytesPerSample(wpc)); if (!audio_format_init_checked(&audio_format, - WavpackGetSampleRate(wpc), bits, + WavpackGetSampleRate(wpc), + sample_format, WavpackGetNumChannels(wpc), &error)) { g_warning("%s", error->message); g_error_free(error); |