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alsatplg: add decode command

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-12-22 15:44:56 +01:00
parent 32e7016fd7
commit 786c3ee814
2 changed files with 92 additions and 32 deletions
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3
topology/alsatplg.rst
View file

@ -53,6 +53,9 @@ Available options:
**-c**, **--compile** `FILE`
source configuration file for the compilation
**-d**, **--decode** `FILE`
source binary topology file for the decode
**-n**, **--normalize** `FILE`
parse and save the configuration file in the normalized format

121
topology/topology.c
View file

@ -44,9 +44,10 @@ static void usage(const char *name)
_("Usage: %s [OPTIONS]...\n"
"\n"
"-h, --help help\n"
"-c, --compile=FILE compile file\n"
"-n, --normalize=FILE normalize file\n"
"-u, --dump=FILE dump (reparse) file\n"
"-c, --compile=FILE compile configuration file\n"
"-d, --decode=FILE decode binary topology file\n"
"-n, --normalize=FILE normalize configuration file\n"
"-u, --dump=FILE dump (reparse) configuration file\n"
"-v, --verbose=LEVEL set verbosity level (0...1)\n"
"-o, --output=FILE set output file\n"
"-s, --sort sort the identifiers in the normalized output\n"
@ -66,10 +67,10 @@ _("%s version %s\n"
snd_asoundlib_version(), snd_tplg_version());
}
static int load(snd_tplg_t **tplg, const char *source_file, int cflags)
static int load(const char *source_file, void **dst, size_t *dst_size)
{
int fd, err;
char *buf, *buf2;
int fd;
void *buf, *buf2;
size_t size, pos;
ssize_t r;
@ -112,22 +113,8 @@ static int load(snd_tplg_t **tplg, const char *source_file, int cflags)
goto _err;
}
*tplg = snd_tplg_create(cflags);
if (*tplg == NULL) {
fprintf(stderr, _("failed to create new topology context\n"));
free(buf);
return 1;
}
err = snd_tplg_load(*tplg, buf, pos);
free(buf);
if (err < 0) {
fprintf(stderr, _("Unable to load configuration: %s\n"),
snd_strerror(-err));
snd_tplg_free(*tplg);
return 1;
}
*dst = buf;
*dst_size = pos;
return 0;
_nomem:
@ -139,6 +126,28 @@ _err:
return 1;
}
static int load_topology(snd_tplg_t **tplg, char *config,
size_t config_size, int cflags)
{
int err;
*tplg = snd_tplg_create(cflags);
if (*tplg == NULL) {
fprintf(stderr, _("failed to create new topology context\n"));
return 1;
}
err = snd_tplg_load(*tplg, config, config_size);
if (err < 0) {
fprintf(stderr, _("Unable to load configuration: %s\n"),
snd_strerror(-err));
snd_tplg_free(*tplg);
return 1;
}
return 0;
}
static int save(const char *output_file, void *buf, size_t size)
{
char *fname = NULL;
@ -194,10 +203,15 @@ static int save(const char *output_file, void *buf, size_t size)
static int dump(const char *source_file, const char *output_file, int cflags, int sflags)
{
snd_tplg_t *tplg;
char *text;
char *config, *text;
size_t size;
int err;
err = load(&tplg, source_file, cflags);
err = load(source_file, (void **)&config, &size);
if (err)
return err;
err = load_topology(&tplg, config, size, cflags);
free(config);
if (err)
return err;
err = snd_tplg_save(tplg, &text, sflags);
@ -215,17 +229,23 @@ static int dump(const char *source_file, const char *output_file, int cflags, in
static int compile(const char *source_file, const char *output_file, int cflags)
{
snd_tplg_t *tplg;
char *config;
void *bin;
size_t size;
size_t config_size, size;
int err;
err = load(&tplg, source_file, cflags);
err = load(source_file, (void **)&config, &config_size);
if (err)
return err;
err = load_topology(&tplg, config, config_size, cflags);
free(config);
if (err)
return err;
err = snd_tplg_build_bin(tplg, &bin, &size);
snd_tplg_free(tplg);
if (err < 0 || size == 0) {
fprintf(stderr, _("failed to compile context %s\n"), source_file);
fprintf(stderr, _("failed to compile context %s: %s\n"),
source_file, snd_strerror(-err));
return 1;
}
err = save(output_file, bin, size);
@ -233,17 +253,50 @@ static int compile(const char *source_file, const char *output_file, int cflags)
return err;
}
#define OP_COMPILE 1
#define OP_NORMALIZE 2
#define OP_DUMP 3
static int decode(const char *source_file, const char *output_file,
int cflags, int dflags, int sflags)
{
snd_tplg_t *tplg;
void *bin;
char *text;
size_t size;
int err;
if (load(source_file, &bin, &size))
return 1;
tplg = snd_tplg_create(cflags);
if (tplg == NULL) {
fprintf(stderr, _("failed to create new topology context\n"));
return 1;
}
err = snd_tplg_decode(tplg, bin, size, dflags);
free(bin);
if (err < 0) {
snd_tplg_free(tplg);
fprintf(stderr, _("failed to decode context %s: %s\n"),
source_file, snd_strerror(-err));
return 1;
}
err = snd_tplg_save(tplg, &text, sflags);
snd_tplg_free(tplg);
if (err < 0) {
fprintf(stderr, _("Unable to save parsed configuration: %s\n"),
snd_strerror(-err));
return 1;
}
err = save(output_file, text, strlen(text));
free(text);
return err;
}
int main(int argc, char *argv[])
{
static const char short_options[] = "hc:n:u:v:o:sgxzV";
static const char short_options[] = "hc:d:n:u:v:o:sgxzV";
static const struct option long_options[] = {
{"help", 0, NULL, 'h'},
{"verbose", 1, NULL, 'v'},
{"compile", 1, NULL, 'c'},
{"decode", 1, NULL, 'd'},
{"normalize", 1, NULL, 'n'},
{"dump", 1, NULL, 'u'},
{"output", 1, NULL, 'o'},
@ -256,7 +309,7 @@ int main(int argc, char *argv[])
};
char *source_file = NULL;
char *output_file = NULL;
int c, err, op = 'c', cflags = 0, sflags = 0, option_index;
int c, err, op = 'c', cflags = 0, dflags = 0, sflags = 0, option_index;
#ifdef ENABLE_NLS
setlocale(LC_ALL, "");
@ -278,6 +331,7 @@ int main(int argc, char *argv[])
cflags |= SND_TPLG_CREATE_DAPM_NOSORT;
break;
case 'c':
case 'd':
case 'n':
case 'u':
if (source_file) {
@ -326,6 +380,9 @@ int main(int argc, char *argv[])
case 'c':
err = compile(source_file, output_file, cflags);
break;
case 'd':
err = decode(source_file, output_file, cflags, dflags, sflags);
break;
default:
err = dump(source_file, output_file, cflags, sflags);
break;