1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#include "lame_encoder.h"
#include <stdexcept>
EncoderLame::EncoderLame() {
gfp = lame_init();
int error = lame_init_params(gfp);
if(error < 0) {
throw std::runtime_error("failed to initialize LAME");
}
}
EncoderLame::~EncoderLame() {
lame_close(gfp);
}
size_t EncoderLame::encode(const uint8_t *input, size_t input_size, uint8_t *output, size_t output_size) {
return lame_encode_buffer_interleaved(gfp, (short*)input, input_size / 4, output, output_size);
}
size_t EncoderLame::flush(uint8_t *output, size_t output_size) {
return lame_encode_flush(gfp, output, output_size);
}
size_t EncoderLame::encode(ReadFunc read, uint8_t *output, size_t output_size) {
char src_data[0x2000];
std::streamsize src_read = read(src_data, 0x2000);
if(src_read < 0)
src_read = 0;
std::streamsize size = encode((const uint8_t*)src_data, src_read, (uint8_t*)output, output_size);
// no more data, flush encoder
if(src_read == 0 && size == 0) {
size = flush((uint8_t*)output, output_size);
}
return size;
}
|
