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null_encoder: use pcm_buffer

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This commit is contained in:
Viliam Mateicka 2009-12-03 15:00:13 +01:00
parent 4809213676
commit 07b388f8d4
1 changed files with 18 additions and 10 deletions
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28
src/encoder/null_encoder.c
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@ -20,16 +20,15 @@
#include "config.h"
#include "encoder_api.h"
#include "encoder_plugin.h"
#include "pcm_buffer.h"
#include <assert.h>
#include <string.h>
#define MAX_BUFFER 32768
struct null_encoder {
struct encoder encoder;
unsigned char buffer[MAX_BUFFER];
struct pcm_buffer buffer;
size_t buffer_length;
};
@ -61,6 +60,15 @@ null_encoder_finish(struct encoder *_encoder)
g_free(encoder);
}
static void
null_encoder_close(struct encoder *_encoder)
{
struct null_encoder *encoder = (struct null_encoder *)_encoder;
pcm_buffer_deinit(&encoder->buffer);
}
static bool
null_encoder_open(struct encoder *_encoder,
G_GNUC_UNUSED struct audio_format *audio_format,
@ -69,6 +77,7 @@ null_encoder_open(struct encoder *_encoder,
struct null_encoder *encoder = (struct null_encoder *)_encoder;
encoder->buffer_length = 0;
pcm_buffer_init(&encoder->buffer);
return true;
}
@ -79,11 +88,9 @@ null_encoder_write(struct encoder *_encoder,
G_GNUC_UNUSED GError **error)
{
struct null_encoder *encoder = (struct null_encoder *)_encoder;
char *buffer = pcm_buffer_get(&encoder->buffer, encoder->buffer_length + length);
assert(length + encoder->buffer_length < MAX_BUFFER);
memcpy(encoder->buffer+encoder->buffer_length,
data, length);
memcpy(buffer+encoder->buffer_length, data, length);
encoder->buffer_length += length;
return true;
@ -93,15 +100,15 @@ static size_t
null_encoder_read(struct encoder *_encoder, void *dest, size_t length)
{
struct null_encoder *encoder = (struct null_encoder *)_encoder;
char *buffer = pcm_buffer_get(&encoder->buffer, encoder->buffer_length);
if (length > encoder->buffer_length)
length = encoder->buffer_length;
memcpy(dest, encoder->buffer, length);
memcpy(dest, buffer, length);
encoder->buffer_length -= length;
memmove(encoder->buffer, encoder->buffer + length,
encoder->buffer_length);
memmove(buffer, buffer + length, encoder->buffer_length);
return length;
}
@ -111,6 +118,7 @@ const struct encoder_plugin null_encoder_plugin = {
.init = null_encoder_init,
.finish = null_encoder_finish,
.open = null_encoder_open,
.close = null_encoder_close,
.write = null_encoder_write,
.read = null_encoder_read,
};