webm/dumpvtt.cc

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// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
#include <cstdio>
#include <cstdlib>
#include "webvtt/vttreader.h"
#include "webvtt/webvttparser.h"
int main(int argc, const char* argv[]) {
if (argc != 2) {
fprintf(stdout, "usage: dumpvtt <vtt file>\n");
return EXIT_SUCCESS;
}
libwebvtt::VttReader reader;
const char* const filename = argv[1];
if (int e = reader.Open(filename)) {
(void)e;
fprintf(stderr, "open failed\n");
return EXIT_FAILURE;
}
libwebvtt::Parser parser(&reader);
if (int e = parser.Init()) {
(void)e;
fprintf(stderr, "parser init failed\n");
return EXIT_FAILURE;
}
for (libwebvtt::Cue cue;;) {
const int e = parser.Parse(&cue);
if (e < 0) { // error
fprintf(stderr, "error parsing cue\n");
return EXIT_FAILURE;
}
if (e > 0) // EOF
return EXIT_SUCCESS;
fprintf(stdout, "cue identifier: \"%s\"\n", cue.identifier.c_str());
const libwebvtt::Time& st = cue.start_time;
fprintf(stdout, "cue start time: \"HH=%i MM=%i SS=%i SSS=%i\"\n", st.hours,
st.minutes, st.seconds, st.milliseconds);
const libwebvtt::Time& sp = cue.stop_time;
fprintf(stdout, "cue stop time: \"HH=%i MM=%i SS=%i SSS=%i\"\n", sp.hours,
sp.minutes, sp.seconds, sp.milliseconds);
{
typedef libwebvtt::Cue::settings_t::const_iterator iter_t;
iter_t i = cue.settings.begin();
const iter_t j = cue.settings.end();
if (i == j) {
fprintf(stdout, "cue setting: <no settings present>\n");
} else {
while (i != j) {
const libwebvtt::Setting& setting = *i++;
fprintf(stdout, "cue setting: name=%s value=%s\n",
setting.name.c_str(), setting.value.c_str());
}
}
}
{
typedef libwebvtt::Cue::payload_t::const_iterator iter_t;
iter_t i = cue.payload.begin();
const iter_t j = cue.payload.end();
int idx = 1;
while (i != j) {
const std::string& payload = *i++;
const char* const payload_str = payload.c_str();
fprintf(stdout, "cue payload[%i]: \"%s\"\n", idx, payload_str);
++idx;
}
}
fprintf(stdout, "\n");
fflush(stdout);
}
}