2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include <glib/gstdio.h>
27 #include <libsigrok/libsigrok.h>
28 #include "libsigrok-internal.h"
30 #define LOG_PREFIX "output/srzip"
38 static int init(struct sr_output *o, GHashTable *options)
40 struct out_context *outc;
44 if (!o->filename || o->filename[0] == '\0') {
45 sr_info("srzip output module requires a file name, cannot save.");
49 outc = g_malloc0(sizeof(struct out_context));
50 outc->filename = g_strdup(o->filename);
56 static int zip_create(const struct sr_output *o)
58 struct out_context *outc;
60 struct zip_source *versrc, *metasrc;
61 struct sr_channel *ch;
68 guint logic_channels = 0, analog_channels = 0;
72 if (outc->samplerate == 0 && sr_config_get(o->sdi->driver, o->sdi, NULL,
73 SR_CONF_SAMPLERATE, &gvar) == SR_OK) {
74 outc->samplerate = g_variant_get_uint64(gvar);
75 g_variant_unref(gvar);
78 /* Quietly delete it first, libzip wants replace ops otherwise. */
79 g_unlink(outc->filename);
80 zipfile = zip_open(outc->filename, ZIP_CREATE, NULL);
85 versrc = zip_source_buffer(zipfile, "2", 1, FALSE);
86 if (zip_add(zipfile, "version", versrc) < 0) {
87 sr_err("Error saving version into zipfile: %s",
88 zip_strerror(zipfile));
89 zip_source_free(versrc);
95 meta = g_key_file_new();
97 g_key_file_set_string(meta, "global", "sigrok version",
98 SR_PACKAGE_VERSION_STRING);
100 devgroup = "device 1";
101 g_key_file_set_string(meta, devgroup, "capturefile", "logic-1");
103 s = sr_samplerate_string(outc->samplerate);
104 g_key_file_set_string(meta, devgroup, "samplerate", s);
107 for (l = o->sdi->channels; l; l = l->next) {
110 case SR_CHANNEL_LOGIC:
113 case SR_CHANNEL_ANALOG:
119 g_key_file_set_integer(meta, devgroup, "total probes", logic_channels);
120 g_key_file_set_integer(meta, devgroup, "total analog", analog_channels);
122 for (l = o->sdi->channels; l; l = l->next) {
125 case SR_CHANNEL_LOGIC:
126 s = g_strdup_printf("probe%d", ch->index + 1);
128 case SR_CHANNEL_ANALOG:
129 s = g_strdup_printf("analog%d", ch->index + 1);
133 g_key_file_set_string(meta, devgroup, s, ch->name);
137 metabuf = g_key_file_to_data(meta, &metalen, NULL);
138 g_key_file_free(meta);
140 metasrc = zip_source_buffer(zipfile, metabuf, metalen, FALSE);
141 if (zip_add(zipfile, "metadata", metasrc) < 0) {
142 sr_err("Error saving metadata into zipfile: %s",
143 zip_strerror(zipfile));
144 zip_source_free(metasrc);
145 zip_discard(zipfile);
150 if (zip_close(zipfile) < 0) {
151 sr_err("Error saving zipfile: %s", zip_strerror(zipfile));
152 zip_discard(zipfile);
161 static int zip_append(const struct sr_output *o, unsigned char *buf,
162 int unitsize, int length)
164 struct out_context *outc;
166 struct zip_source *logicsrc;
167 int64_t i, num_files;
169 struct zip_source *metasrc;
173 const char *entry_name;
177 unsigned int next_chunk_num;
180 if (!(archive = zip_open(outc->filename, 0, NULL)))
183 if (zip_stat(archive, "metadata", 0, &zs) < 0) {
184 sr_err("Failed to open metadata: %s", zip_strerror(archive));
185 zip_discard(archive);
188 kf = sr_sessionfile_read_metadata(archive, &zs);
190 zip_discard(archive);
194 * If the file was only initialized but doesn't yet have any
195 * data it in, it won't have a unitsize field in metadata yet.
199 if (!g_key_file_has_key(kf, "device 1", "unitsize", &error)) {
200 if (error && error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) {
201 sr_err("Failed to check unitsize key: %s", error->message);
204 zip_discard(archive);
207 g_clear_error(&error);
209 /* Add unitsize field. */
210 g_key_file_set_integer(kf, "device 1", "unitsize", unitsize);
211 metabuf = g_key_file_to_data(kf, &metalen, NULL);
212 metasrc = zip_source_buffer(archive, metabuf, metalen, FALSE);
214 if (zip_replace(archive, zs.index, metasrc) < 0) {
215 sr_err("Failed to replace metadata: %s",
216 zip_strerror(archive));
218 zip_source_free(metasrc);
219 zip_discard(archive);
227 num_files = zip_get_num_entries(archive, 0);
228 for (i = 0; i < num_files; i++) {
229 entry_name = zip_get_name(archive, i, 0);
230 if (!entry_name || strncmp(entry_name, "logic-1", 7) != 0)
232 if (entry_name[7] == '\0') {
233 /* This file has no extra chunks, just a single "logic-1".
234 * Rename it to "logic-1-1" * and continue with chunk 2. */
235 if (zip_rename(archive, i, "logic-1-1") < 0) {
236 sr_err("Failed to rename 'logic-1' to 'logic-1-1': %s",
237 zip_strerror(archive));
238 zip_discard(archive);
244 } else if (entry_name[7] == '-') {
245 chunk_num = g_ascii_strtoull(entry_name + 8, NULL, 10);
246 if (chunk_num < G_MAXINT && chunk_num >= next_chunk_num)
247 next_chunk_num = chunk_num + 1;
251 if (length % unitsize != 0) {
252 sr_warn("Chunk size %d not a multiple of the"
253 " unit size %d.", length, unitsize);
255 logicsrc = zip_source_buffer(archive, buf, length, FALSE);
256 chunkname = g_strdup_printf("logic-1-%u", next_chunk_num);
257 i = zip_add(archive, chunkname, logicsrc);
260 sr_err("Failed to add chunk 'logic-1-%u': %s",
261 next_chunk_num, zip_strerror(archive));
262 zip_source_free(logicsrc);
263 zip_discard(archive);
267 if (zip_close(archive) < 0) {
268 sr_err("Error saving session file: %s", zip_strerror(archive));
269 zip_discard(archive);
278 static int zip_append_analog(const struct sr_output *o,
279 const struct sr_datafeed_analog *analog)
281 struct out_context *outc;
283 struct zip_source *analogsrc;
284 int64_t i, num_files;
287 const char *entry_name;
290 struct sr_channel *channel;
294 unsigned int next_chunk_num;
297 if (!(archive = zip_open(outc->filename, 0, NULL)))
300 if (zip_stat(archive, "metadata", 0, &zs) < 0) {
301 sr_err("Failed to open metadata: %s", zip_strerror(archive));
302 zip_discard(archive);
306 /* TODO: support packets covering multiple channels */
307 if (g_slist_length(analog->meaning->channels) != 1) {
308 sr_err("Analog packets covering multiple channels not supported yet");
311 channel = analog->meaning->channels->data;
313 basename = g_strdup_printf("analog-1-%u", channel->index + 1);
314 baselen = strlen(basename);
316 num_files = zip_get_num_entries(archive, 0);
317 for (i = 0; i < num_files; i++) {
318 entry_name = zip_get_name(archive, i, 0);
319 if (!entry_name || strncmp(entry_name, basename, baselen) != 0) {
321 } else if (entry_name[baselen] == '-') {
322 chunk_num = g_ascii_strtoull(entry_name + baselen + 1, NULL, 10);
323 if (chunk_num < G_MAXINT && chunk_num >= next_chunk_num)
324 next_chunk_num = chunk_num + 1;
328 chunksize = sizeof(float) * analog->num_samples;
329 if (!(chunkbuf = g_try_malloc(chunksize)))
331 if (sr_analog_to_float(analog, chunkbuf) != SR_OK)
334 analogsrc = zip_source_buffer(archive, chunkbuf, chunksize, FALSE);
335 chunkname = g_strdup_printf("%s-%u", basename, next_chunk_num);
336 i = zip_add(archive, chunkname, analogsrc);
339 sr_err("Failed to add chunk '%s': %s", chunkname, zip_strerror(archive));
340 zip_source_free(analogsrc);
341 zip_discard(archive);
344 if (zip_close(archive) < 0) {
345 sr_err("Error saving session file: %s", zip_strerror(archive));
346 zip_discard(archive);
353 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
356 struct out_context *outc;
357 const struct sr_datafeed_meta *meta;
358 const struct sr_datafeed_logic *logic;
359 const struct sr_datafeed_analog *analog;
360 const struct sr_config *src;
366 if (!o || !o->sdi || !(outc = o->priv))
369 switch (packet->type) {
371 meta = packet->payload;
372 for (l = meta->config; l; l = l->next) {
374 if (src->key != SR_CONF_SAMPLERATE)
376 outc->samplerate = g_variant_get_uint64(src->data);
380 if (!outc->zip_created) {
381 if ((ret = zip_create(o)) != SR_OK)
383 outc->zip_created = TRUE;
385 logic = packet->payload;
386 ret = zip_append(o, logic->data, logic->unitsize, logic->length);
391 if (!outc->zip_created) {
392 if ((ret = zip_create(o)) != SR_OK)
394 outc->zip_created = TRUE;
396 analog = packet->payload;
397 ret = zip_append_analog(o, analog);
406 static struct sr_option options[] = {
410 static const struct sr_option *get_options(void)
413 options[0].def = g_variant_ref_sink(g_variant_new_string(""));
418 static int cleanup(struct sr_output *o)
420 struct out_context *outc;
423 g_variant_unref(options[0].def);
424 g_free(outc->filename);
431 SR_PRIV struct sr_output_module output_srzip = {
434 .desc = "srzip session file",
435 .exts = (const char*[]){"sr", NULL},
436 .flags = SR_OUTPUT_INTERNAL_IO_HANDLING,
437 .options = get_options,