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decoder: audiofile plugin using input stream instead of file

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This commit is contained in:
Viliam Mateicka 2008-12-03 20:26:08 +01:00
parent b84f20257a
commit e61ba50ebd
1 changed files with 75 additions and 16 deletions
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91
src/decoder/audiofile_plugin.c
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@ -20,8 +20,8 @@
#include "../decoder_api.h"
#include <sys/stat.h>
#include <audiofile.h>
#include <af_vfs.h>
#include <glib.h>
#undef G_LOG_DOMAIN
@ -44,27 +44,79 @@ static int getAudiofileTotalTime(const char *file)
return total_time;
}
static void
audiofile_decode(struct decoder *decoder, const char *path)
static ssize_t
audiofile_file_read(AFvirtualfile *vfile, void *data, size_t nbytes)
{
struct input_stream *is = (struct input_stream *) vfile->closure;
return input_stream_read(is, data, nbytes);
}
static long
audiofile_file_length(AFvirtualfile *vfile)
{
struct input_stream *is = (struct input_stream *) vfile->closure;
return is->size;
}
static long
audiofile_file_tell(AFvirtualfile *vfile)
{
struct input_stream *is = (struct input_stream *) vfile->closure;
return is->offset;
}
static void
audiofile_file_destroy(AFvirtualfile *vfile)
{
struct input_stream *is = (struct input_stream *) vfile->closure;
vfile->closure = NULL;
input_stream_close(is);
}
static long
audiofile_file_seek(AFvirtualfile *vfile, long offset, int is_relative)
{
struct input_stream *is = (struct input_stream *) vfile->closure;
int whence = (is_relative ? SEEK_CUR : SEEK_SET);
if (input_stream_seek(is, offset, whence)) {
return is->offset;
} else {
return -1;
}
}
static AFvirtualfile *
setup_virtual_fops(struct input_stream *stream)
{
AFvirtualfile *vf = g_malloc(sizeof(AFvirtualfile));
vf->closure = stream;
vf->write = NULL;
vf->read = audiofile_file_read;
vf->length = audiofile_file_length;
vf->destroy = audiofile_file_destroy;
vf->seek = audiofile_file_seek;
vf->tell = audiofile_file_tell;
return vf;
}
static void
audiofile_streamdecode(struct decoder * decoder, struct input_stream *inStream)
{
AFvirtualfile *vf;
int fs, frame_count;
AFfilehandle af_fp;
int bits;
struct audio_format audio_format;
float total_time;
uint16_t bitRate;
struct stat st;
int ret, current = 0;
char chunk[CHUNK_SIZE];
if (stat(path, &st) < 0) {
g_warning("failed to stat: %s\n", path);
return;
}
vf = setup_virtual_fops(inStream);
af_fp = afOpenFile(path, "r", NULL);
af_fp = afOpenVirtualFile(vf, "r", NULL);
if (af_fp == AF_NULL_FILEHANDLE) {
g_warning("failed to open: %s\n", path);
g_warning("failed to input stream\n");
return;
}
@ -89,7 +141,7 @@ audiofile_decode(struct decoder *decoder, const char *path)
total_time = ((float)frame_count / (float)audio_format.sample_rate);
bitRate = (uint16_t)(st.st_size * 8.0 / total_time / 1000.0 + 0.5);
bitRate = (uint16_t)(inStream->size * 8.0 / total_time / 1000.0 + 0.5);
fs = (int)afGetVirtualFrameSize(af_fp, AF_DEFAULT_TRACK, 1);
@ -118,7 +170,7 @@ audiofile_decode(struct decoder *decoder, const char *path)
afCloseFile(af_fp);
}
static struct tag *audiofileTagDup(const char *file)
static struct tag *audiofile_tag_dup(const char *file)
{
struct tag *ret = NULL;
int total_time = getAudiofileTotalTime(file);
@ -134,13 +186,20 @@ static struct tag *audiofileTagDup(const char *file)
return ret;
}
static const char *const audiofileSuffixes[] = {
static const char *const audiofile_suffixes[] = {
"wav", "au", "aiff", "aif", NULL
};
static const char *const audiofile_mime_types[] = {
"audio/x-wav",
"audio/x-aiff",
NULL
};
const struct decoder_plugin audiofilePlugin = {
.name = "audiofile",
.file_decode = audiofile_decode,
.tag_dup = audiofileTagDup,
.suffixes = audiofileSuffixes,
.stream_decode = audiofile_streamdecode,
.tag_dup = audiofile_tag_dup,
.suffixes = audiofile_suffixes,
.mime_types = audiofile_mime_types,
};