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"
39 static int init(struct sr_output *o, GHashTable *options)
41 struct out_context *outc;
45 if (!o->filename || o->filename[0] == '\0') {
46 sr_info("srzip output module requires a file name, cannot save.");
50 outc = g_malloc0(sizeof(struct out_context));
51 outc->filename = g_strdup(o->filename);
57 static int zip_create(const struct sr_output *o)
59 struct out_context *outc;
61 struct zip_source *versrc, *metasrc;
62 struct sr_channel *ch;
69 guint logic_channels = 0, analog_channels = 0;
70 gint min_analog_index;
74 if (outc->samplerate == 0 && sr_config_get(o->sdi->driver, o->sdi, NULL,
75 SR_CONF_SAMPLERATE, &gvar) == SR_OK) {
76 outc->samplerate = g_variant_get_uint64(gvar);
77 g_variant_unref(gvar);
80 /* Quietly delete it first, libzip wants replace ops otherwise. */
81 g_unlink(outc->filename);
82 zipfile = zip_open(outc->filename, ZIP_CREATE, NULL);
87 versrc = zip_source_buffer(zipfile, "2", 1, FALSE);
88 if (zip_add(zipfile, "version", versrc) < 0) {
89 sr_err("Error saving version into zipfile: %s",
90 zip_strerror(zipfile));
91 zip_source_free(versrc);
97 meta = g_key_file_new();
99 g_key_file_set_string(meta, "global", "sigrok version",
100 SR_PACKAGE_VERSION_STRING);
102 devgroup = "device 1";
103 g_key_file_set_string(meta, devgroup, "capturefile", "logic-1");
105 s = sr_samplerate_string(outc->samplerate);
106 g_key_file_set_string(meta, devgroup, "samplerate", s);
109 min_analog_index = -1;
111 for (l = o->sdi->channels; l; l = l->next) {
114 case SR_CHANNEL_LOGIC:
117 case SR_CHANNEL_ANALOG:
118 if (min_analog_index == -1 ||
119 ch->index < min_analog_index)
120 min_analog_index = ch->index;
126 outc->analog_offset = logic_channels - min_analog_index + 1;
128 g_key_file_set_integer(meta, devgroup, "total probes", logic_channels);
129 g_key_file_set_integer(meta, devgroup, "total analog", analog_channels);
131 for (l = o->sdi->channels; l; l = l->next) {
134 case SR_CHANNEL_LOGIC:
135 s = g_strdup_printf("probe%d", ch->index + 1);
137 case SR_CHANNEL_ANALOG:
138 s = g_strdup_printf("analog%d", ch->index + outc->analog_offset);
142 g_key_file_set_string(meta, devgroup, s, ch->name);
146 metabuf = g_key_file_to_data(meta, &metalen, NULL);
147 g_key_file_free(meta);
149 metasrc = zip_source_buffer(zipfile, metabuf, metalen, FALSE);
150 if (zip_add(zipfile, "metadata", metasrc) < 0) {
151 sr_err("Error saving metadata into zipfile: %s",
152 zip_strerror(zipfile));
153 zip_source_free(metasrc);
154 zip_discard(zipfile);
159 if (zip_close(zipfile) < 0) {
160 sr_err("Error saving zipfile: %s", zip_strerror(zipfile));
161 zip_discard(zipfile);
170 static int zip_append(const struct sr_output *o, unsigned char *buf,
171 int unitsize, int length)
173 struct out_context *outc;
175 struct zip_source *logicsrc;
176 int64_t i, num_files;
178 struct zip_source *metasrc;
182 const char *entry_name;
186 unsigned int next_chunk_num;
189 if (!(archive = zip_open(outc->filename, 0, NULL)))
192 if (zip_stat(archive, "metadata", 0, &zs) < 0) {
193 sr_err("Failed to open metadata: %s", zip_strerror(archive));
194 zip_discard(archive);
197 kf = sr_sessionfile_read_metadata(archive, &zs);
199 zip_discard(archive);
203 * If the file was only initialized but doesn't yet have any
204 * data it in, it won't have a unitsize field in metadata yet.
208 if (!g_key_file_has_key(kf, "device 1", "unitsize", &error)) {
209 if (error && error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) {
210 sr_err("Failed to check unitsize key: %s", error->message);
213 zip_discard(archive);
216 g_clear_error(&error);
218 /* Add unitsize field. */
219 g_key_file_set_integer(kf, "device 1", "unitsize", unitsize);
220 metabuf = g_key_file_to_data(kf, &metalen, NULL);
221 metasrc = zip_source_buffer(archive, metabuf, metalen, FALSE);
223 if (zip_replace(archive, zs.index, metasrc) < 0) {
224 sr_err("Failed to replace metadata: %s",
225 zip_strerror(archive));
227 zip_source_free(metasrc);
228 zip_discard(archive);
236 num_files = zip_get_num_entries(archive, 0);
237 for (i = 0; i < num_files; i++) {
238 entry_name = zip_get_name(archive, i, 0);
239 if (!entry_name || strncmp(entry_name, "logic-1", 7) != 0)
241 if (entry_name[7] == '\0') {
242 /* This file has no extra chunks, just a single "logic-1".
243 * Rename it to "logic-1-1" * and continue with chunk 2. */
244 if (zip_rename(archive, i, "logic-1-1") < 0) {
245 sr_err("Failed to rename 'logic-1' to 'logic-1-1': %s",
246 zip_strerror(archive));
247 zip_discard(archive);
253 } else if (entry_name[7] == '-') {
254 chunk_num = g_ascii_strtoull(entry_name + 8, NULL, 10);
255 if (chunk_num < G_MAXINT && chunk_num >= next_chunk_num)
256 next_chunk_num = chunk_num + 1;
260 if (length % unitsize != 0) {
261 sr_warn("Chunk size %d not a multiple of the"
262 " unit size %d.", length, unitsize);
264 logicsrc = zip_source_buffer(archive, buf, length, FALSE);
265 chunkname = g_strdup_printf("logic-1-%u", next_chunk_num);
266 i = zip_add(archive, chunkname, logicsrc);
269 sr_err("Failed to add chunk 'logic-1-%u': %s",
270 next_chunk_num, zip_strerror(archive));
271 zip_source_free(logicsrc);
272 zip_discard(archive);
276 if (zip_close(archive) < 0) {
277 sr_err("Error saving session file: %s", zip_strerror(archive));
278 zip_discard(archive);
287 static int zip_append_analog(const struct sr_output *o,
288 const struct sr_datafeed_analog *analog)
290 struct out_context *outc;
292 struct zip_source *analogsrc;
293 int64_t i, num_files;
296 const char *entry_name;
299 struct sr_channel *channel;
303 unsigned int next_chunk_num;
306 if (!(archive = zip_open(outc->filename, 0, NULL)))
309 if (zip_stat(archive, "metadata", 0, &zs) < 0) {
310 sr_err("Failed to open metadata: %s", zip_strerror(archive));
311 zip_discard(archive);
315 /* TODO: support packets covering multiple channels */
316 if (g_slist_length(analog->meaning->channels) != 1) {
317 sr_err("Analog packets covering multiple channels not supported yet");
320 channel = analog->meaning->channels->data;
322 basename = g_strdup_printf("analog-1-%u",
323 channel->index + outc->analog_offset);
324 baselen = strlen(basename);
326 num_files = zip_get_num_entries(archive, 0);
327 for (i = 0; i < num_files; i++) {
328 entry_name = zip_get_name(archive, i, 0);
329 if (!entry_name || strncmp(entry_name, basename, baselen) != 0) {
331 } else if (entry_name[baselen] == '-') {
332 chunk_num = g_ascii_strtoull(entry_name + baselen + 1, NULL, 10);
333 if (chunk_num < G_MAXINT && chunk_num >= next_chunk_num)
334 next_chunk_num = chunk_num + 1;
338 chunksize = sizeof(float) * analog->num_samples;
339 if (!(chunkbuf = g_try_malloc(chunksize)))
341 if (sr_analog_to_float(analog, chunkbuf) != SR_OK)
344 analogsrc = zip_source_buffer(archive, chunkbuf, chunksize, FALSE);
345 chunkname = g_strdup_printf("%s-%u", basename, next_chunk_num);
346 i = zip_add(archive, chunkname, analogsrc);
349 sr_err("Failed to add chunk '%s': %s", chunkname, zip_strerror(archive));
350 zip_source_free(analogsrc);
351 zip_discard(archive);
354 if (zip_close(archive) < 0) {
355 sr_err("Error saving session file: %s", zip_strerror(archive));
356 zip_discard(archive);
363 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
366 struct out_context *outc;
367 const struct sr_datafeed_meta *meta;
368 const struct sr_datafeed_logic *logic;
369 const struct sr_datafeed_analog *analog;
370 const struct sr_config *src;
376 if (!o || !o->sdi || !(outc = o->priv))
379 switch (packet->type) {
381 meta = packet->payload;
382 for (l = meta->config; l; l = l->next) {
384 if (src->key != SR_CONF_SAMPLERATE)
386 outc->samplerate = g_variant_get_uint64(src->data);
390 if (!outc->zip_created) {
391 if ((ret = zip_create(o)) != SR_OK)
393 outc->zip_created = TRUE;
395 logic = packet->payload;
396 ret = zip_append(o, logic->data, logic->unitsize, logic->length);
401 if (!outc->zip_created) {
402 if ((ret = zip_create(o)) != SR_OK)
404 outc->zip_created = TRUE;
406 analog = packet->payload;
407 ret = zip_append_analog(o, analog);
416 static struct sr_option options[] = {
420 static const struct sr_option *get_options(void)
423 options[0].def = g_variant_ref_sink(g_variant_new_string(""));
428 static int cleanup(struct sr_output *o)
430 struct out_context *outc;
433 g_variant_unref(options[0].def);
434 g_free(outc->filename);
441 SR_PRIV struct sr_output_module output_srzip = {
444 .desc = "srzip session file",
445 .exts = (const char*[]){"sr", NULL},
446 .flags = SR_OUTPUT_INTERNAL_IO_HANDLING,
447 .options = get_options,