fenix
/
fdkaac
mirror of https://github.com/nu774/fdkaac.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

raw input support

This commit is contained in:
nu774 2013-01-09 00:12:55 +09:00
parent 8960a17764
commit 6854317606
3 changed files with 195 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

126
src/main.c
View File

@ -11,6 +11,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <locale.h>
#include <errno.h>
#include <sys/stat.h>
@ -97,13 +98,27 @@ PROGNAME " %s\n"
" 6: LATM MCP=1\n"
" 7: LATM MCP=0\n"
" 10: LOAS/LATM (LATM within LOAS)\n"
" -c, --adts-crc-check Add CRC protection on ADTS header\n"
" -C, --adts-crc-check Add CRC protection on ADTS header\n"
" -h, --header-period <n> StreamMuxConfig/PCE repetition period in\n"
" transport layer\n"
"\n"
" -o <filename> Output filename\n"
" --ignore-length Ignore length of WAV header\n"
"\n"
"Options for raw (headerless) input:\n"
" -R, --raw Treat input as raw (by default WAV is\n"
" assumed)\n"
" --raw-channels <n> Number of channels (default: 2)\n"
" --raw-rate <n> Sample rate (default: 44100)\n"
" --raw-format <spec> Sample format, default is \"S16L\".\n"
" Spec is as follows:\n"
" 1st char: S(igned)|U(nsigned)|F(loat)\n"
" 2nd part: bits per channel\n"
" Last char: L(ittle)|B(ig)\n"
" Last char can be omitted, in which case L is\n"
" assumed. Spec is case insensitive, therefore\n"
" \"u16b\" is same as \"U16B\".\n"
"\n"
"Tagging options:\n"
" --title <string>\n"
" --artist <string>\n"
@ -132,6 +147,11 @@ typedef struct aacenc_param_ex_t {
char *output_filename;
unsigned ignore_length;
int is_raw;
unsigned raw_channels;
unsigned raw_rate;
const char *raw_format;
aacenc_tag_entry_t *tag_table;
unsigned tag_count;
unsigned tag_table_capacity;
@ -144,6 +164,10 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
unsigned n;
aacenc_tag_entry_t *tag;
#define OPT_RAW_CHANNELS M4AF_FOURCC('r','c','h','n')
#define OPT_RAW_RATE M4AF_FOURCC('r','r','a','t')
#define OPT_RAW_FORMAT M4AF_FOURCC('r','f','m','t')
static struct option long_options[] = {
{ "help", no_argument, 0, 'h' },
{ "profile", required_argument, 0, 'p' },
@ -154,11 +178,16 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
{ "lowdelay-sbr", no_argument, 0, 'L' },
{ "sbr-signaling", required_argument, 0, 's' },
{ "transport-format", required_argument, 0, 'f' },
{ "adts-crc-check", no_argument, 0, 'c' },
{ "adts-crc-check", no_argument, 0, 'C' },
{ "header-period", required_argument, 0, 'P' },
{ "ignore-length", no_argument, 0, 'I' },
{ "raw", no_argument, 0, 'R' },
{ "raw-channels", required_argument, 0, OPT_RAW_CHANNELS },
{ "raw-rate", required_argument, 0, OPT_RAW_RATE },
{ "raw-format", required_argument, 0, OPT_RAW_FORMAT },
{ "title", required_argument, 0, M4AF_TAG_TITLE },
{ "artist", required_argument, 0, M4AF_TAG_ARTIST },
{ "album", required_argument, 0, M4AF_TAG_ALBUM },
@ -175,7 +204,7 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
params->afterburner = 1;
aacenc_getmainargs(&argc, &argv);
while ((ch = getopt_long(argc, argv, "hp:b:m:w:a:Ls:f:cP:Io:",
while ((ch = getopt_long(argc, argv, "hp:b:m:w:a:Ls:f:CP:Io:R",
long_options, 0)) != EOF) {
switch (ch) {
case 'h':
@ -248,6 +277,26 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
case 'I':
params->ignore_length = 1;
break;
case 'R':
params->is_raw = 1;
break;
case OPT_RAW_CHANNELS:
if (sscanf(optarg, "%u", &n) != 1) {
fprintf(stderr, "invalid arg for raw-channels\n");
return -1;
}
params->raw_channels = n;
break;
case OPT_RAW_RATE:
if (sscanf(optarg, "%u", &n) != 1) {
fprintf(stderr, "invalid arg for raw-rate\n");
return -1;
}
params->raw_rate = n;
break;
case OPT_RAW_FORMAT:
params->raw_format = optarg;
break;
case M4AF_TAG_TITLE:
case M4AF_TAG_ARTIST:
case M4AF_TAG_ALBUM:
@ -279,6 +328,7 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
}
if (argc == optind)
return usage(), -1;
if (!params->bitrate && !params->bitrate_mode) {
fprintf(stderr, "bitrate or bitrate-mode is mandatory\n");
return -1;
@ -290,6 +340,15 @@ int parse_options(int argc, char **argv, aacenc_param_ex_t *params)
}
if (params->bitrate && params->bitrate < 10000)
params->bitrate *= 1000;
if (params->is_raw) {
if (!params->raw_channels)
params->raw_channels = 2;
if (!params->raw_rate)
params->raw_rate = 44100;
if (!params->raw_format)
params->raw_format = "S16L";
}
params->input_filename = argv[optind];
return 0;
};
@ -462,9 +521,45 @@ char *generate_output_filename(const char *filename, const char *ext)
return p;
}
static
int parse_raw_spec(const char *spec, pcm_sample_description_t *desc)
{
unsigned bits;
unsigned char c_type, c_endian = 'L';
int type;
if (sscanf(spec, "%c%u%c", &c_type, &bits, &c_endian) < 2)
return -1;
c_type = toupper(c_type);
c_endian = toupper(c_endian);
if (c_type == 'S')
type = 1;
else if (c_type == 'U')
type = 2;
else if (c_type == 'F')
type = 4;
else
return -1;
if (c_endian == 'B')
type |= 8;
else if (c_endian != 'L')
return -1;
if (c_type == 'F' && bits != 32 && bits != 64)
return -1;
if (c_type != 'F' && (bits < 8 || bits > 32))
return -1;
desc->sample_type = type;
desc->bits_per_channel = bits;
return 0;
}
int main(int argc, char **argv)
{
wav_io_context_t wav_io = { read_callback, seek_callback };
wav_io_context_t wav_io = { read_callback, seek_callback, tell_callback };
m4af_io_callbacks_t m4af_io = {
write_callback, seek_callback, tell_callback };
aacenc_param_ex_t params = { 0 };
@ -493,14 +588,31 @@ int main(int argc, char **argv)
strerror(errno));
goto END;
}
if (fstat(fileno(ifp), &stb) == 0 && (stb.st_mode & S_IFMT) != S_IFREG)
if (fstat(fileno(ifp), &stb) == 0 && (stb.st_mode & S_IFMT) != S_IFREG) {
wav_io.seek = 0;
wav_io.tell = 0;
}
if (!params.is_raw) {
if ((wavf = wav_open(&wav_io, ifp, params.ignore_length)) == 0) {
fprintf(stderr, "ERROR: broken / unsupported input file\n");
goto END;
}
} else {
int bytes_per_channel;
pcm_sample_description_t desc = { 0 };
if (parse_raw_spec(params.raw_format, &desc) < 0) {
fprintf(stderr, "ERROR: invalid raw-format spec\n");
goto END;
}
desc.sample_rate = params.raw_rate;
desc.channels_per_frame = params.raw_channels;
bytes_per_channel = (desc.bits_per_channel + 7) / 8;
desc.bytes_per_frame = params.raw_channels * bytes_per_channel;
if ((wavf = raw_open(&wav_io, ifp, &desc)) == 0) {
fprintf(stderr, "ERROR: failed to open raw input\n");
goto END;
}
}
sample_format = wav_get_format(wavf);
if (aacenc_init(&encoder, (aacenc_param_t*)&params, sample_format,

58
src/wav_reader.c
View File

@ -91,7 +91,7 @@ int riff_read(wav_reader_t *reader, void *buffer, uint32_t size)
}
static
int riff_skip(wav_reader_t *reader, uint32_t count)
int riff_skip(wav_reader_t *reader, int64_t count)
{
char buff[8192];
int rc;
@ -114,6 +114,37 @@ int riff_skip(wav_reader_t *reader, uint32_t count)
return reader->last_error ? -1 : 0;
}
static
int riff_seek(wav_reader_t *reader, int64_t off, int whence)
{
int rc;
if (reader->last_error)
return -1;
if (!reader->io.seek)
goto FAIL;
if ((rc = reader->io.seek(reader->io_cookie, off, whence)) < 0)
goto FAIL;
return 0;
FAIL:
reader->last_error = WAV_IO_ERROR;
return -1;
}
static
int64_t riff_tell(wav_reader_t *reader)
{
int64_t off;
if (reader->last_error || !reader->io.tell)
return -1;
off = reader->io.tell(reader->io_cookie);
if (off < 0) {
reader->last_error = WAV_IO_ERROR;
return -1;
}
return off;
}
static
int riff_read16(wav_reader_t *reader, uint16_t *value)
{
@ -331,3 +362,28 @@ wav_reader_t *wav_open(wav_io_context_t *io_ctx, void *io_cookie,
reader->length = data_length / reader->sample_format.bytes_per_frame;
return reader;
}
wav_reader_t *raw_open(wav_io_context_t *io_ctx, void *io_cookie,
const pcm_sample_description_t *desc)
{
wav_reader_t *reader = 0;
if ((reader = calloc(1, sizeof(wav_reader_t))) == 0)
return 0;
memcpy(&reader->io, io_ctx, sizeof(wav_io_context_t));
memcpy(&reader->sample_format, desc, sizeof(pcm_sample_description_t));
reader->io_cookie = io_cookie;
if (io_ctx->seek && io_ctx->tell) {
TRY_IO(riff_seek(reader, 0, SEEK_END));
reader->length = riff_tell(reader) / desc->bytes_per_frame;
TRY_IO(riff_seek(reader, 0, SEEK_SET));
} else
reader->length = INT64_MAX;
return reader;
FAIL:
if (reader)
free(reader);
return 0;
}

4
src/wav_reader.h
View File

@ -16,16 +16,20 @@ enum wav_error_code {
typedef int (*wav_read_callback)(void *cookie, void *data, uint32_t size);
typedef int (*wav_seek_callback)(void *cookie, int64_t off, int whence);
typedef int64_t (*wav_tell_callback)(void *cookie);
typedef struct wav_io_context_t {
wav_read_callback read;
wav_seek_callback seek;
wav_tell_callback tell;
} wav_io_context_t;
typedef struct wav_reader_t wav_reader_t;
wav_reader_t *wav_open(wav_io_context_t *io_ctx, void *io_cookie,
int ignore_length);
wav_reader_t *raw_open(wav_io_context_t *io_ctx, void *io_cookie,
const pcm_sample_description_t *desc);
const pcm_sample_description_t *wav_get_format(wav_reader_t *reader);
int wav_read_frames(wav_reader_t *reader, void *buffer, unsigned nframes);
int64_t wav_get_length(wav_reader_t *reader);