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@@ -107,9 +107,11 @@ static unsigned int breakBufferFillSize = 0;
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/* MISC Functions */
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/* ***************************** */
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static int prepareClipPlay(int uNoOfChannels, int uSampleRate,
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int uBitsPerSample, int bLittleEndian
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__attribute__ ((unused)))
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static int uNoOfChannels;
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static int uSampleRate;
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static int uBitsPerSample;
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static int prepareClipPlay()
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{
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printf("rate: %d ch: %d bits: %d (%d bps)\n",
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uSampleRate /*Format->dwSamplesPerSec */ ,
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@@ -177,34 +179,23 @@ static int prepareClipPlay(int uNoOfChannels, int uSampleRate,
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return 0;
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}
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static int reset()
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{
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initialHeader = 1;
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return 0;
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}
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static int writeData(WriterAVCallData_t *call)
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static int writePCM(int fd, int64_t Pts, uint8_t *data, unsigned int size)
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{
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unsigned char PesHeader[PES_MAX_HEADER_SIZE];
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pcm_printf(10, "AudioPts %lld\n", call->Pts);
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pcm_printf(10, "AudioPts %lld\n", Pts);
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if (call->fd < 0) {
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if (fd < 0) {
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pcm_err("file pointer < 0. ignoring ...\n");
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return 0;
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}
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if (initialHeader) {
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initialHeader = 0;
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prepareClipPlay(call->uNoOfChannels,
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call->uSampleRate,
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call->uBitsPerSample,
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call->bLittleEndian);
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prepareClipPlay();
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}
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unsigned char *buffer = call->packet->data;
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unsigned int size = call->packet->size;
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unsigned int n;
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unsigned char *injectBuffer = (unsigned char *) malloc(SubFrameLen);
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unsigned int pos;
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@@ -213,7 +204,7 @@ static int writeData(WriterAVCallData_t *call)
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//printf("PCM %s - Position=%d\n", __FUNCTION__, pos);
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if ((size - pos) < SubFrameLen) {
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breakBufferFillSize = size - pos;
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memcpy(breakBuffer, &buffer[pos],
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memcpy(breakBuffer, &data[pos],
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sizeof(unsigned char) * breakBufferFillSize);
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//printf("PCM %s - Unplayed=%d\n", __FUNCTION__, breakBufferFillSize);
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break;
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@@ -221,11 +212,11 @@ static int writeData(WriterAVCallData_t *call)
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//get first PES's worth
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if (breakBufferFillSize > 0) {
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memcpy(injectBuffer, breakBuffer, sizeof(unsigned char) * breakBufferFillSize);
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memcpy(&injectBuffer[breakBufferFillSize], &buffer[pos], sizeof(unsigned char) * (SubFrameLen - breakBufferFillSize));
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memcpy(&injectBuffer[breakBufferFillSize], &data[pos], sizeof(unsigned char) * (SubFrameLen - breakBufferFillSize));
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pos += (SubFrameLen - breakBufferFillSize);
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breakBufferFillSize = 0;
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} else {
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memcpy(injectBuffer, &buffer[pos], sizeof(unsigned char) * SubFrameLen);
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memcpy(injectBuffer, &data[pos], sizeof(unsigned char) * SubFrameLen);
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pos += SubFrameLen;
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}
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@@ -238,7 +229,7 @@ static int writeData(WriterAVCallData_t *call)
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iov[2].iov_len = SubFrameLen;
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//write the PCM data
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if (call->uBitsPerSample == 16) {
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if (uBitsPerSample == 16) {
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for (n = 0; n < SubFrameLen; n += 2) {
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unsigned char tmp;
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tmp = injectBuffer[n];
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@@ -267,8 +258,8 @@ static int writeData(WriterAVCallData_t *call)
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//increment err... subframe count?
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lpcm_prv[1] = ((lpcm_prv[1] + SubFramesPerPES) & 0x1F);
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iov[0].iov_len = InsertPesHeader(PesHeader, iov[1].iov_len + iov[2].iov_len, PCM_PES_START_CODE, call->Pts, 0);
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int len = writev(call->fd, iov, 3);
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iov[0].iov_len = InsertPesHeader(PesHeader, iov[1].iov_len + iov[2].iov_len, PCM_PES_START_CODE, Pts, 0);
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int len = writev(fd, iov, 3);
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if (len < 0)
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break;
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}
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@@ -285,8 +276,10 @@ int out_channels = 2;
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uint64_t out_channel_layout = AV_CH_LAYOUT_STEREO;
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int restart_audio_resampling = 0;
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static int resetIpcm()
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static int reset()
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{
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initialHeader = 1;
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if (swr) {
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swr_free(&swr);
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swr = NULL; //FIXME: Needed?
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@@ -301,7 +294,7 @@ static int resetIpcm()
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int64_t calcPts(AVFormatContext *, AVStream *, int64_t);
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static int writeDataIpcm(WriterAVCallData_t *call)
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static int writeData(WriterAVCallData_t *call)
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{
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AVCodecContext *c = call->stream->codec;
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AVPacket *packet = call->packet;
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@@ -309,18 +302,12 @@ static int writeDataIpcm(WriterAVCallData_t *call)
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unsigned int packet_size = packet->size;
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if (call->restart_audio_resampling)
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call->restart_audio_resampling = 1;
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restart_audio_resampling = 1;
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if (restart_audio_resampling) {
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restart_audio_resampling = 0;
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if (swr) {
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swr_free(&swr);
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swr = NULL;
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}
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if (decoded_frame) {
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av_frame_free(&decoded_frame);
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decoded_frame = NULL;
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}
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reset();
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call->context->output->Command(call->context, OUTPUT_CLEAR, NULL);
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call->context->output->Command(call->context, OUTPUT_PLAY, NULL);
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@@ -328,17 +315,17 @@ static int writeDataIpcm(WriterAVCallData_t *call)
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if (!codec || avcodec_open2(c, codec, NULL))
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fprintf(stderr, "%s %d: avcodec_open2 failed\n", __func__, __LINE__);
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}
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}
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while (packet_size > 0) {
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int got_frame = 0;
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if (!decoded_frame) {
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while (packet_size > 0) {
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int got_frame = 0;
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if (!decoded_frame) {
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if (!(decoded_frame = av_frame_alloc())) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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} else
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av_frame_unref(decoded_frame);
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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} else
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av_frame_unref(decoded_frame);
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int len = avcodec_decode_audio4(c, decoded_frame, &got_frame, packet);
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if (len < 0) {
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@@ -403,32 +390,19 @@ static int writeDataIpcm(WriterAVCallData_t *call)
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// FIXME. PTS calculation is probably broken.
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int64_t pts;
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int64_t next_in_pts = av_rescale(av_frame_get_best_effort_timestamp(decoded_frame),
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call->stream->time_base.num * (int64_t) out_sample_rate * c->sample_rate,
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call->stream->time_base.den);
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call->stream->time_base.num * (int64_t) out_sample_rate * c->sample_rate,
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call->stream->time_base.den);
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int64_t next_out_pts = av_rescale(swr_next_pts(swr, next_in_pts),
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call->stream->time_base.den,
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call->stream->time_base.num * (int64_t) out_sample_rate * c->sample_rate);
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*(call->context->currentAudioPtsP) = /* audioTrack->pts = */ pts = calcPts(call->avfc, call->stream, next_out_pts);
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out_samples = swr_convert(swr, &output, out_samples, (const uint8_t **)
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&decoded_frame->data[0], in_samples);
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call->stream->time_base.den,
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call->stream->time_base.num * (int64_t) out_sample_rate * c->sample_rate);
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*(call->context->currentAudioPtsP) = /* audioTrack->pts = */ pts = calcPts(call->avfc, call->stream, next_out_pts);
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out_samples = swr_convert(swr, &output, out_samples, (const uint8_t **) &decoded_frame->data[0], in_samples);
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WriterAVCallData_t pcmOut;
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pcmOut.fd = call->fd;
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pcmOut.uSampleRate = out_sample_rate;
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pcmOut.uNoOfChannels = av_get_channel_layout_nb_channels(out_channel_layout);
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pcmOut.uBitsPerSample = 16;
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pcmOut.bLittleEndian = 1;
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uSampleRate = out_sample_rate;
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uNoOfChannels = av_get_channel_layout_nb_channels(out_channel_layout);
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uBitsPerSample = 16;
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AVPacket pcmPacket;
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pcmPacket.data = output;
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pcmPacket.size = out_samples * sizeof(short) * out_channels;
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pcmOut.packet = &pcmPacket;
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pcmOut.Pts = pts; // FIXME videoTrack ? pts : 0;
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//pcmOut.stream = call->stream;
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//pcmOut.avfc = call->avfc;
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writeData(&pcmOut);
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writePCM(call->fd, pts, output, out_samples * sizeof(short) * out_channels);
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av_freep(&output);
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}
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@@ -439,20 +413,6 @@ static int writeDataIpcm(WriterAVCallData_t *call)
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/* Writer Definition */
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/* ***************************** */
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static WriterCaps_t caps_pcm = {
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"pcm",
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eAudio,
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"A_PCM",
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AUDIO_ENCODING_LPCMA
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};
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struct Writer_s WriterAudioPCM = {
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&reset,
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&writeData,
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NULL,
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&caps_pcm
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};
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static WriterCaps_t caps_ipcm = {
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"ipcm",
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eAudio,
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@@ -461,8 +421,8 @@ static WriterCaps_t caps_ipcm = {
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};
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struct Writer_s WriterAudioIPCM = {
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&resetIpcm,
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&writeDataIpcm,
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&reset,
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&writeData,
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NULL,
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&caps_ipcm
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};
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