writing audio but sped up for some reason

1 files changed, 57 insertions, 0 deletions

diff --git a/rotord/libavexporter.h b/rotord/libavexporter.h
index 9ff72d7..fd2da93 100644
--- a/rotord/libavexporter.h
+++ b/rotord/libavexporter.h
@@ -238,6 +238,61 @@ namespace libav {
         avcodec_free_frame(&frame);
     }
 
+    static void write_audio_frame(AVFormatContext *oc, AVStream *st,AVPacket *pkt)
+    {
+        /*
+        AVCodecContext *c;
+        AVPacket pkt = { 0 }; // data and size must be 0;
+        AVFrame *frame = avcodec_alloc_frame();
+        int got_packet, ret;
+
+        av_init_packet(&pkt);
+        c = st->codec;
+
+        //get_audio_frame(samples, audio_input_frame_size, c->channels);
+        frame->nb_samples = audio_input_frame_size;
+        uint8_t *sampleptr;
+        int bufsize=audio_input_frame_size * av_get_bytes_per_sample(c->sample_fmt) *c->channels;
+        if (samples) {
+            sampleptr=(uint8_t*)samples;
+        }
+        else {
+            sampleptr=new uint8_t[bufsize];
+            memset(sampleptr,0,bufsize);
+        }
+        avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt,
+                                 sampleptr,
+                                 audio_input_frame_size *
+                                 av_get_bytes_per_sample(c->sample_fmt) *
+                                 c->channels, 1);
+
+        ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
+        if (!samples) {
+            free(sampleptr);
+        }
+        if (ret < 0) {
+            //fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
+            exit(1);
+        }
+
+        if (!got_packet)
+            return;
+            */
+
+        pkt->stream_index = st->index;
+
+        // Write the compressed frame to the media file. //
+        int ret = av_interleaved_write_frame(oc, pkt);
+        if (ret != 0) {
+            //fprintf(stderr, "Error while writing audio frame: %s\n",
+            //        av_err2str(ret));
+            exit(1);
+        }
+        //avcodec_free_frame(&frame);
+        av_free_packet(pkt);
+    }
+
+
     static void close_audio(AVFormatContext *oc, AVStream *st)
     {
         avcodec_close(st->codec);
@@ -417,8 +472,10 @@ namespace libav {
             bool setup(int w,int h, int bitRate, int frameRate, std::string container);
             bool record(std::string filename);
             bool encodeFrame(unsigned char *pixels, uint16_t *samples);
+            bool encodeFrame(unsigned char *pixels,AVPacket *audiopkt);
             void finishRecord();
             int get_audio_framesize(){return size;};
+
         private:
             AVOutputFormat *fmt;
             AVFormatContext *oc;