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encoder/vorbis: move code into the struct

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This commit is contained in:
Max Kellermann 2016-05-04 16:22:59 +02:00
parent b97ffddfe8
commit 69bf835059
1 changed files with 62 additions and 55 deletions
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117
src/encoder/plugins/VorbisEncoderPlugin.cxx
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@ -51,23 +51,30 @@ struct VorbisEncoder {
OggStream stream;
VorbisEncoder():encoder(vorbis_encoder_plugin) {}
bool Configure(const ConfigBlock &block, Error &error);
bool Reinit(Error &error);
void HeaderOut(vorbis_comment &vc);
void SendHeader();
void BlockOut();
void Clear();
};
static constexpr Domain vorbis_encoder_domain("vorbis_encoder");
static bool
vorbis_encoder_configure(VorbisEncoder &encoder,
const ConfigBlock &block, Error &error)
bool
VorbisEncoder::Configure(const ConfigBlock &block, Error &error)
{
const char *value = block.GetBlockValue("quality");
if (value != nullptr) {
/* a quality was configured (VBR) */
char *endptr;
encoder.quality = ParseDouble(value, &endptr);
quality = ParseDouble(value, &endptr);
if (*endptr != '\0' || encoder.quality < -1.0 ||
encoder.quality > 10.0) {
if (*endptr != '\0' || quality < -1.0 || quality > 10.0) {
error.Format(config_domain,
"quality \"%s\" is not a number in the "
"range -1 to 10",
@ -90,11 +97,11 @@ vorbis_encoder_configure(VorbisEncoder &encoder,
return false;
}
encoder.quality = -2.0;
quality = -2.0;
char *endptr;
encoder.bitrate = ParseInt(value, &endptr);
if (*endptr != '\0' || encoder.bitrate <= 0) {
bitrate = ParseInt(value, &endptr);
if (*endptr != '\0' || bitrate <= 0) {
error.Set(config_domain,
"bitrate should be a positive integer");
return false;
@ -110,7 +117,7 @@ vorbis_encoder_init(const ConfigBlock &block, Error &error)
auto *encoder = new VorbisEncoder();
/* load configuration from "block" */
if (!vorbis_encoder_configure(*encoder, block, error)) {
if (!encoder->Configure(block, error)) {
/* configuration has failed, roll back and return error */
delete encoder;
return nullptr;
@ -129,64 +136,64 @@ vorbis_encoder_finish(Encoder *_encoder)
delete encoder;
}
static bool
vorbis_encoder_reinit(VorbisEncoder &encoder, Error &error)
bool
VorbisEncoder::Reinit(Error &error)
{
vorbis_info_init(&encoder.vi);
vorbis_info_init(&vi);
if (encoder.quality >= -1.0) {
if (quality >= -1.0) {
/* a quality was configured (VBR) */
if (0 != vorbis_encode_init_vbr(&encoder.vi,
encoder.audio_format.channels,
encoder.audio_format.sample_rate,
encoder.quality * 0.1)) {
if (0 != vorbis_encode_init_vbr(&vi,
audio_format.channels,
audio_format.sample_rate,
quality * 0.1)) {
error.Set(vorbis_encoder_domain,
"error initializing vorbis vbr");
vorbis_info_clear(&encoder.vi);
vorbis_info_clear(&vi);
return false;
}
} else {
/* a bit rate was configured */
if (0 != vorbis_encode_init(&encoder.vi,
encoder.audio_format.channels,
encoder.audio_format.sample_rate, -1.0,
encoder.bitrate * 1000, -1.0)) {
if (0 != vorbis_encode_init(&vi,
audio_format.channels,
audio_format.sample_rate, -1.0,
bitrate * 1000, -1.0)) {
error.Set(vorbis_encoder_domain,
"error initializing vorbis encoder");
vorbis_info_clear(&encoder.vi);
vorbis_info_clear(&vi);
return false;
}
}
vorbis_analysis_init(&encoder.vd, &encoder.vi);
vorbis_block_init(&encoder.vd, &encoder.vb);
encoder.stream.Initialize(GenerateOggSerial());
vorbis_analysis_init(&vd, &vi);
vorbis_block_init(&vd, &vb);
stream.Initialize(GenerateOggSerial());
return true;
}
static void
vorbis_encoder_headerout(VorbisEncoder &encoder, vorbis_comment &vc)
void
VorbisEncoder::HeaderOut(vorbis_comment &vc)
{
ogg_packet packet, comments, codebooks;
vorbis_analysis_headerout(&encoder.vd, &vc,
vorbis_analysis_headerout(&vd, &vc,
&packet, &comments, &codebooks);
encoder.stream.PacketIn(packet);
encoder.stream.PacketIn(comments);
encoder.stream.PacketIn(codebooks);
stream.PacketIn(packet);
stream.PacketIn(comments);
stream.PacketIn(codebooks);
}
static void
vorbis_encoder_send_header(VorbisEncoder &encoder)
void
VorbisEncoder::SendHeader()
{
vorbis_comment vc;
vorbis_comment_init(&vc);
vorbis_encoder_headerout(encoder, vc);
HeaderOut(vc);
vorbis_comment_clear(&vc);
}
@ -201,21 +208,21 @@ vorbis_encoder_open(Encoder *_encoder,
encoder.audio_format = audio_format;
if (!vorbis_encoder_reinit(encoder, error))
if (!encoder.Reinit(error))
return false;
vorbis_encoder_send_header(encoder);
encoder.SendHeader();
return true;
}
static void
vorbis_encoder_clear(VorbisEncoder &encoder)
void
VorbisEncoder::Clear()
{
encoder.stream.Deinitialize();
vorbis_block_clear(&encoder.vb);
vorbis_dsp_clear(&encoder.vd);
vorbis_info_clear(&encoder.vi);
stream.Deinitialize();
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_info_clear(&vi);
}
static void
@ -223,19 +230,19 @@ vorbis_encoder_close(Encoder *_encoder)
{
auto &encoder = *(VorbisEncoder *)_encoder;
vorbis_encoder_clear(encoder);
encoder.Clear();
}
static void
vorbis_encoder_blockout(VorbisEncoder &encoder)
void
VorbisEncoder::BlockOut()
{
while (vorbis_analysis_blockout(&encoder.vd, &encoder.vb) == 1) {
vorbis_analysis(&encoder.vb, nullptr);
vorbis_bitrate_addblock(&encoder.vb);
while (vorbis_analysis_blockout(&vd, &vb) == 1) {
vorbis_analysis(&vb, nullptr);
vorbis_bitrate_addblock(&vb);
ogg_packet packet;
while (vorbis_bitrate_flushpacket(&encoder.vd, &packet))
encoder.stream.PacketIn(packet);
while (vorbis_bitrate_flushpacket(&vd, &packet))
stream.PacketIn(packet);
}
}
@ -254,7 +261,7 @@ vorbis_encoder_pre_tag(Encoder *_encoder, gcc_unused Error &error)
auto &encoder = *(VorbisEncoder *)_encoder;
vorbis_analysis_wrote(&encoder.vd, 0);
vorbis_encoder_blockout(encoder);
encoder.BlockOut();
/* reinitialize vorbis_dsp_state and vorbis_block to reset the
end-of-stream marker */
@ -295,7 +302,7 @@ vorbis_encoder_tag(Encoder *_encoder, const Tag &tag,
/* send that vorbis_comment to the ogg_stream_state */
vorbis_encoder_headerout(encoder, comment);
encoder.HeaderOut(comment);
vorbis_comment_clear(&comment);
return true;
@ -328,7 +335,7 @@ vorbis_encoder_write(Encoder *_encoder,
encoder.audio_format.channels);
vorbis_analysis_wrote(&encoder.vd, num_frames);
vorbis_encoder_blockout(encoder);
encoder.BlockOut();
return true;
}