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#include "subtitle_sampler.h"
#include <c10/util/Logging.h>
#include "util.h"
namespace ffmpeg {
SubtitleSampler::~SubtitleSampler() {
cleanUp();
}
void SubtitleSampler::shutdown() {
cleanUp();
}
bool SubtitleSampler::init(const SamplerParameters& params) {
cleanUp();
// set formats
params_ = params;
return true;
}
int SubtitleSampler::sample(AVSubtitle* sub, ByteStorage* out) {
if (!sub || !out) {
return 0; // flush
}
out->ensure(Util::size(*sub));
return Util::serialize(*sub, out);
}
int SubtitleSampler::sample(const ByteStorage* in, ByteStorage* out) {
if (in && out) {
// Get a writable copy
if (size_t len = in->length()) {
out->ensure(len);
memcpy(out->writableTail(), in->data(), len);
}
return out->length();
}
return 0;
}
void SubtitleSampler::cleanUp() {}
} // namespace ffmpeg
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