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-rw-r--r--src/decoder/_flac_common.c35
-rw-r--r--src/decoder/_flac_common.h17
-rw-r--r--src/decoder/flac_plugin.c16
-rw-r--r--src/decoder/oggflac_plugin.c15
4 files changed, 51 insertions, 32 deletions
diff --git a/src/decoder/_flac_common.c b/src/decoder/_flac_common.c
index 1e2ab6413..70fc2cbcc 100644
--- a/src/decoder/_flac_common.c
+++ b/src/decoder/_flac_common.c
@@ -58,19 +58,41 @@ flac_data_deinit(struct flac_data *data)
tag_free(data->tag);
}
+bool
+flac_data_get_audio_format(struct flac_data *data,
+ struct audio_format *audio_format)
+{
+ if (!data->have_stream_info) {
+ g_warning("no STREAMINFO packet found");
+ return false;
+ }
+
+ audio_format_init(audio_format, data->stream_info.sample_rate,
+ data->stream_info.bits_per_sample,
+ data->stream_info.channels);
+
+ if (!audio_format_valid(audio_format)) {
+ g_warning("Invalid audio format: %u:%u:%u\n",
+ audio_format->sample_rate,
+ audio_format->bits,
+ audio_format->channels);
+ return false;
+ }
+
+ data->frame_size = audio_format_frame_size(audio_format);
+
+ return true;
+}
+
void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
struct flac_data *data)
{
- const FLAC__StreamMetadata_StreamInfo *si = &(block->data.stream_info);
-
switch (block->type) {
case FLAC__METADATA_TYPE_STREAMINFO:
data->stream_info = block->data.stream_info;
data->have_stream_info = true;
-
- audio_format_init(&data->audio_format, si->sample_rate,
- si->bits_per_sample, si->channels);
break;
+
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
if (data->replay_gain_info)
replay_gain_info_free(data->replay_gain_info);
@@ -113,8 +135,7 @@ flac_common_write(struct flac_data *data, const FLAC__Frame * frame,
FLAC__uint64 nbytes)
{
enum decoder_command cmd;
- size_t buffer_size = frame->header.blocksize *
- audio_format_frame_size(&data->audio_format);
+ size_t buffer_size = frame->header.blocksize * data->frame_size;
void *buffer;
float position;
unsigned bit_rate;
diff --git a/src/decoder/_flac_common.h b/src/decoder/_flac_common.h
index 84b66285f..1d211fcfb 100644
--- a/src/decoder/_flac_common.h
+++ b/src/decoder/_flac_common.h
@@ -39,6 +39,11 @@ struct flac_data {
struct pcm_buffer buffer;
/**
+ * The size of one frame in the output buffer.
+ */
+ unsigned frame_size;
+
+ /**
* Is the #stream_info member valid?
*/
bool have_stream_info;
@@ -62,7 +67,6 @@ struct flac_data {
*/
FLAC__uint64 next_frame;
- struct audio_format audio_format;
FLAC__uint64 position;
struct decoder *decoder;
struct input_stream *input_stream;
@@ -78,6 +82,17 @@ flac_data_init(struct flac_data *data, struct decoder * decoder,
void
flac_data_deinit(struct flac_data *data);
+/**
+ * Obtains the audio format from the stream_info attribute, and copies
+ * it to the specified #audio_format object. This also updates the
+ * frame_size attribute.
+ *
+ * @return true on success, false the audio format is not supported
+ */
+bool
+flac_data_get_audio_format(struct flac_data *data,
+ struct audio_format *audio_format);
+
void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
struct flac_data *data);
diff --git a/src/decoder/flac_plugin.c b/src/decoder/flac_plugin.c
index 1841c3f72..2d14ab9df 100644
--- a/src/decoder/flac_plugin.c
+++ b/src/decoder/flac_plugin.c
@@ -391,28 +391,20 @@ static bool
flac_decoder_initialize(struct flac_data *data, FLAC__StreamDecoder *sd,
bool seekable, FLAC__uint64 duration)
{
+ struct audio_format audio_format;
+
if (!FLAC__stream_decoder_process_until_end_of_metadata(sd)) {
g_warning("problem reading metadata");
return false;
}
- if (!data->have_stream_info) {
- g_warning("no STREAMINFO packet found");
+ if (!flac_data_get_audio_format(data, &audio_format))
return false;
- }
-
- if (!audio_format_valid(&data->audio_format)) {
- g_warning("Invalid audio format: %u:%u:%u\n",
- data->audio_format.sample_rate,
- data->audio_format.bits,
- data->audio_format.channels);
- return false;
- }
if (duration == 0)
duration = data->stream_info.total_samples;
- decoder_initialized(data->decoder, &data->audio_format,
+ decoder_initialized(data->decoder, &audio_format,
seekable,
(float)duration /
(float)data->stream_info.sample_rate);
diff --git a/src/decoder/oggflac_plugin.c b/src/decoder/oggflac_plugin.c
index 14b832bdb..3b6987c6d 100644
--- a/src/decoder/oggflac_plugin.c
+++ b/src/decoder/oggflac_plugin.c
@@ -288,6 +288,7 @@ oggflac_decode(struct decoder * mpd_decoder, struct input_stream *input_stream)
{
OggFLAC__SeekableStreamDecoder *decoder = NULL;
struct flac_data data;
+ struct audio_format audio_format;
if (ogg_stream_type_detect(input_stream) != FLAC)
return;
@@ -302,20 +303,10 @@ oggflac_decode(struct decoder * mpd_decoder, struct input_stream *input_stream)
goto fail;
}
- if (!data.have_stream_info) {
- g_warning("no STREAMINFO packet found");
+ if (!flac_data_get_audio_format(&data, &audio_format))
goto fail;
- }
-
- if (!audio_format_valid(&data.audio_format)) {
- g_warning("Invalid audio format: %u:%u:%u\n",
- data.audio_format.sample_rate,
- data.audio_format.bits,
- data.audio_format.channels);
- goto fail;
- }
- decoder_initialized(mpd_decoder, &data.audio_format,
+ decoder_initialized(mpd_decoder, &audio_format,
input_stream->seekable,
(float)data.stream_info.total_samples /
(float)data.stream_info.sample_rate);