Initial commit now that things are taking shape.

1 files changed, 74 insertions, 0 deletions

diff --git a/mp3lame.rs b/mp3lame.rs
new file mode 100644
index 0000000..eb7d572
--- /dev/null
+++ b/mp3lame.rs
@@ -0,0 +1,74 @@
+use std::libc::{c_float, c_int, c_short, c_uchar, c_ulong, c_void};
+
+type GlobalFlags_ = *c_void;
+
+enum MpegMode {
+  Stereo = 0,
+  JointStereo,
+  DualChannel,
+  Mono,
+  NotSet,
+  MaxIndicator
+}
+
+#[link_args = "-lmp3lame"]
+
+extern {
+  fn lame_init() -> GlobalFlags_;
+  fn lame_set_num_samples(gfp: GlobalFlags_, samples: c_ulong) -> c_int;
+  fn lame_get_num_samples(gfp: GlobalFlags_) -> c_ulong;
+  fn lame_set_in_samplerate(gfp: GlobalFlags_, rate: c_int) -> c_int;
+  fn lame_get_in_samplerate(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_num_channels(gfp: GlobalFlags_, channels: c_int) -> c_int;
+  fn lame_get_num_channels(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_scale(gfp: GlobalFlags_, scale: c_float) -> c_int;
+  fn lame_get_scale(gfp: GlobalFlags_) -> c_float;
+  fn lame_set_scale_left(gfp: GlobalFlags_, scale: c_float) -> c_int;
+  fn lame_get_scale_left(gfp: GlobalFlags_) -> c_float;
+  fn lame_set_scale_right(gfp: GlobalFlags_, scale: c_float) -> c_int;
+  fn lame_get_scale_right(gfp: GlobalFlags_) -> c_float;
+  fn lame_set_out_samplerate(gfp: GlobalFlags_, rate: c_int) -> c_int;
+  fn lame_get_out_samplerate(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_analysis(gfp: GlobalFlags_, analysis: c_int) -> c_int;
+  fn lame_get_analysis(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_bWriteVbrTag(gfp: GlobalFlags_, write_tag: c_int) -> c_int;
+  fn lame_get_bWriteVbrTag(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_decode_only(gfp: GlobalFlags_, decode: c_int) -> c_int;
+  fn lame_get_decode_only(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_quality(gfp: GlobalFlags_, quality: c_int) -> c_int;
+  fn lame_get_quality(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_mode(gfp: GlobalFlags_, mode: MpegMode) -> c_int;
+  fn lame_get_mode(gfp: GlobalFlags_) -> MpegMode;
+  fn lame_set_brate(gfp: GlobalFlags_, rate: c_int) -> c_int;
+  fn lame_get_brate(gfp: GlobalFlags_) -> c_int;
+  fn lame_set_disable_reservoir(gfp: GlobalFlags_, disable: c_int) -> c_int;
+  fn lame_get_disable_reservoir(gfp: GlobalFlags_) -> c_int;
+  fn lame_init_params(gfp: GlobalFlags_) -> c_int;
+  fn lame_close(gfp: GlobalFlags_) -> c_int;
+  fn lame_encode_buffer_interleaved(gfp: GlobalFlags_,
+                                    pcm: *c_short,
+                                    num_samples:c_int,
+                                    mp3buf: *c_uchar,
+                                    mp3buf_size: c_int) -> c_int;
+  fn lame_encode_flush_nogap(gfp: GlobalFlags_,
+                             mp3buf: *c_uchar,
+                             size: c_int) -> c_int;
+}
+
+pub struct LameContext {
+  gfp: GlobalFlags_
+}
+
+impl LameContext {
+  #[fixed_stack_segment]
+  pub fn new() -> LameContext {
+    LameContext { gfp: unsafe { lame_init() }}
+  }
+}
+
+impl Drop for LameContext {
+  #[fixed_stack_segment]
+  fn drop(&mut self) {
+    unsafe { lame_close(self.gfp) };
+  }
+}