media: Ed25519-подписи блоков, local_attrs, MediaBlockReader, файловые вложения

tools/chatgui/src/voiceplayback.cpp

@@ -1,5 +1,6 @@
 #include "voiceplayback.h"
 #include "sound_manager.h"
+#include "media_blocks.h"
 
 extern "C" {
 #include "../../../lib/opus_codec.h"
@@ -89,3 +90,63 @@ void VoicePlayer::playOpusFile(const QString& filePath) {
                pcm.size(), sampleRate, channels, duration);
     SoundManager::instance()->playRawPcm(pcm.data(), pcm.size() / channels, sampleRate, channels);
 }
+
+void VoicePlayer::playOpusFromReader(MediaBlockReader& reader) {
+    DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "VoicePlayer::playOpusFromReader: %s", qPrintable(reader.debugPath()));
+    std::vector<int16_t> pcm;
+    int sampleRate, channels;
+    float duration;
+    if (decodeOpusFromReader(reader, pcm, sampleRate, channels, duration) <= 0) {
+        DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "VoicePlayer::playOpusFromReader: decode failed");
+        return;
+    }
+    DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "VoicePlayer::playOpusFromReader: decoded %zu samples %dHz %dch %.1fs",
+               pcm.size(), sampleRate, channels, duration);
+    SoundManager::instance()->playRawPcm(pcm.data(), pcm.size() / channels, sampleRate, channels);
+}
+
+int VoicePlayer::decodeOpusFromReader(MediaBlockReader& reader, std::vector<int16_t>& outPcm,
+                                       int& outSampleRate, int& outChannels, float& outDurationSec) {
+    QByteArray data = reader.readAll();
+    if (data.isEmpty()) {
+        DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "VoicePlayer::decodeOpusFromReader: empty data");
+        return -1;
+    }
+
+    const uint8_t* ptr = (const uint8_t*)data.constData();
+    size_t len = (size_t)data.size();
+    size_t off = 0;
+
+    if (off + 12 > len) { DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "VoicePlayer: header truncated"); return -1; }
+    uint32_t magic; memcpy(&magic, ptr + off, 4); off += 4;
+    if (magic != OPUS_MAGIC) { DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "VoicePlayer: bad magic %08x", magic); return -1; }
+    uint32_t sr32; memcpy(&sr32, ptr + off, 4); off += 4;
+    uint16_t ch16; memcpy(&ch16, ptr + off, 2); off += 2;
+    uint16_t frameSamples; memcpy(&frameSamples, ptr + off, 2); off += 2;
+    int sampleRate = (int)sr32, channels = (int)ch16;
+    outSampleRate = sampleRate; outChannels = channels;
+
+    opus_codec_decoder_t* dec = opus_codec_decoder_create(sampleRate, channels);
+    if (!dec) { DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "VoicePlayer: decoder create failed"); return -1; }
+
+    outPcm.clear();
+    int frameCount = 0;
+    while (off + 2 <= len) {
+        uint16_t plen; memcpy(&plen, ptr + off, 2); off += 2;
+        if (plen == 0) break;
+        if (off + plen > len) break;
+        std::vector<int16_t> frameBuf(frameSamples * channels);
+        int decoded = opus_codec_decode(dec, ptr + off, plen, frameBuf.data(), frameSamples);
+        off += plen;
+        if (decoded > 0) {
+            size_t cur = outPcm.size();
+            outPcm.resize(cur + decoded * channels);
+            memcpy(outPcm.data() + cur, frameBuf.data(), decoded * channels * sizeof(int16_t));
+            frameCount++;
+        }
+    }
+    outDurationSec = (float)frameCount * 20.0f / 1000.0f;
+    DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "VoicePlayer: decoded %d frames (%.1fs)", frameCount, outDurationSec);
+    opus_codec_decoder_destroy(dec);
+    return frameCount;
+}