diff options
Diffstat (limited to '')
-rw-r--r-- | src/encoder/LameEncoderPlugin.cxx | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/src/encoder/LameEncoderPlugin.cxx b/src/encoder/LameEncoderPlugin.cxx index 2e988d89a..36e60dc4d 100644 --- a/src/encoder/LameEncoderPlugin.cxx +++ b/src/encoder/LameEncoderPlugin.cxx @@ -21,7 +21,7 @@ #include "LameEncoderPlugin.hxx" #include "EncoderAPI.hxx" #include "AudioFormat.hxx" -#include "util/AllocatedArray.hxx" +#include "util/ReusableArray.hxx" #include "util/Manual.hxx" #include <lame/lame.h> @@ -40,8 +40,8 @@ struct LameEncoder final { lame_global_flags *gfp; - Manual<AllocatedArray<unsigned char>> output_buffer; - size_t output_buffer_length, output_buffer_position; + Manual<ReusableArray<unsigned char, 32768>> output_buffer; + unsigned char *output_begin, *output_end; LameEncoder():encoder(lame_encoder_plugin) {} @@ -212,9 +212,7 @@ lame_encoder_open(Encoder *_encoder, AudioFormat &audio_format, } encoder->output_buffer.Construct(); - - encoder->output_buffer_length = 0; - encoder->output_buffer_position = 0; + encoder->output_begin = encoder->output_end = nullptr; return true; } @@ -236,8 +234,7 @@ lame_encoder_write(Encoder *_encoder, LameEncoder *encoder = (LameEncoder *)_encoder; const int16_t *src = (const int16_t*)data; - assert(encoder->output_buffer_position == - encoder->output_buffer_length); + assert(encoder->output_begin == encoder->output_end); const unsigned num_frames = length / encoder->audio_format.GetFrameSize(); @@ -246,9 +243,7 @@ lame_encoder_write(Encoder *_encoder, /* worst-case formula according to LAME documentation */ const size_t output_buffer_size = 5 * num_samples / 4 + 7200; - encoder->output_buffer->GrowDiscard(output_buffer_size); - - const auto output_buffer = encoder->output_buffer->begin(); + const auto output_buffer = encoder->output_buffer->Get(output_buffer_size); /* this is for only 16-bit audio */ @@ -264,8 +259,8 @@ lame_encoder_write(Encoder *_encoder, return false; } - encoder->output_buffer_length = (size_t)bytes_out; - encoder->output_buffer_position = 0; + encoder->output_begin = output_buffer; + encoder->output_end = output_buffer + bytes_out; return true; } @@ -274,20 +269,15 @@ lame_encoder_read(Encoder *_encoder, void *dest, size_t length) { LameEncoder *encoder = (LameEncoder *)_encoder; - assert(encoder->output_buffer_position <= - encoder->output_buffer_length); - - const size_t remainning = encoder->output_buffer_length - - encoder->output_buffer_position; + const auto begin = encoder->output_begin; + assert(begin <= encoder->output_end); + const size_t remainning = encoder->output_end - begin; if (length > remainning) length = remainning; - memcpy(dest, - encoder->output_buffer->begin() + encoder->output_buffer_position, - length); - - encoder->output_buffer_position += length; + memcpy(dest, begin, length); + encoder->output_begin = begin + length; return length; } |