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omx_audioprocessor.cpp
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omx_audioprocessor.cpp
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/*
* Project: PiOmxTextures
* Author: Luca Carlon
* Date: 12.28.2012
*
* Copyright (c) 2012 Luca Carlon. All rights reserved.
*
* This file is part of PiOmxTextures.
*
* PiOmxTextures is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PiOmxTextures is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PiOmxTextures. If not, see <http://www.gnu.org/licenses/>.
*/
/*------------------------------------------------------------------------------
| includes
+-----------------------------------------------------------------------------*/
#include <QFile>
#include <IL/OMX_Audio.h>
#include <IL/OMX_Broadcom.h>
extern "C" {
#include <libavformat/avformat.h>
}
#include <memory>
#include <stdint.h>
#include <unistd.h>
#include <vector>
#include "omx_audioprocessor.h"
#include "OMX_Core.h"
#include "lc_logging.h"
using namespace std;
#define TIMEOUT_MS 10000
#define BUFFER_SIZE_SAMPLES 1024
#define N_WAVE 1024 /* dimension of Sinewave[] */
#define PI (1 << 16 >> 1)
#define SIN(x) Sinewave[((x)>>6) & (N_WAVE-1)]
#define COS(x) SIN((x) + (PI >> 1))
#define CTTW_SLEEP_TIME 10
#define MIN_LATENCY_TIME 20
#define AUDIO_INBUF_SIZE 20480
#define AUDIO_REFILL_THRESH 4096
short Sinewave[] = {
0, 201, 402, 603, 804, 1005, 1206, 1406,
1607, 1808, 2009, 2209, 2410, 2610, 2811, 3011,
3211, 3411, 3611, 3811, 4011, 4210, 4409, 4608,
4807, 5006, 5205, 5403, 5601, 5799, 5997, 6195,
6392, 6589, 6786, 6982, 7179, 7375, 7571, 7766,
7961, 8156, 8351, 8545, 8739, 8932, 9126, 9319,
9511, 9703, 9895, 10087, 10278, 10469, 10659, 10849,
11038, 11227, 11416, 11604, 11792, 11980, 12166, 12353,
12539, 12724, 12909, 13094, 13278, 13462, 13645, 13827,
14009, 14191, 14372, 14552, 14732, 14911, 15090, 15268,
15446, 15623, 15799, 15975, 16150, 16325, 16499, 16672,
16845, 17017, 17189, 17360, 17530, 17699, 17868, 18036,
18204, 18371, 18537, 18702, 18867, 19031, 19194, 19357,
19519, 19680, 19840, 20000, 20159, 20317, 20474, 20631,
20787, 20942, 21096, 21249, 21402, 21554, 21705, 21855,
22004, 22153, 22301, 22448, 22594, 22739, 22883, 23027,
23169, 23311, 23452, 23592, 23731, 23869, 24006, 24143,
24278, 24413, 24546, 24679, 24811, 24942, 25072, 25201,
25329, 25456, 25582, 25707, 25831, 25954, 26077, 26198,
26318, 26437, 26556, 26673, 26789, 26905, 27019, 27132,
27244, 27355, 27466, 27575, 27683, 27790, 27896, 28001,
28105, 28208, 28309, 28410, 28510, 28608, 28706, 28802,
28897, 28992, 29085, 29177, 29268, 29358, 29446, 29534,
29621, 29706, 29790, 29873, 29955, 30036, 30116, 30195,
30272, 30349, 30424, 30498, 30571, 30643, 30713, 30783,
30851, 30918, 30984, 31049,
31113, 31175, 31236, 31297,
31356, 31413, 31470, 31525, 31580, 31633, 31684, 31735,
31785, 31833, 31880, 31926, 31970, 32014, 32056, 32097,
32137, 32176, 32213, 32249, 32284, 32318, 32350, 32382,
32412, 32441, 32468, 32495, 32520, 32544, 32567, 32588,
32609, 32628, 32646, 32662, 32678, 32692, 32705, 32717,
32727, 32736, 32744, 32751, 32757, 32761, 32764, 32766,
32767, 32766, 32764, 32761, 32757, 32751, 32744, 32736,
32727, 32717, 32705, 32692, 32678, 32662, 32646, 32628,
32609, 32588, 32567, 32544, 32520, 32495, 32468, 32441,
32412, 32382, 32350, 32318, 32284, 32249, 32213, 32176,
32137, 32097, 32056, 32014, 31970, 31926, 31880, 31833,
31785, 31735, 31684, 31633, 31580, 31525, 31470, 31413,
31356, 31297, 31236, 31175, 31113, 31049, 30984, 30918,
30851, 30783, 30713, 30643, 30571, 30498, 30424, 30349,
30272, 30195, 30116, 30036, 29955, 29873, 29790, 29706,
29621, 29534, 29446, 29358, 29268, 29177, 29085, 28992,
28897, 28802, 28706, 28608, 28510, 28410, 28309, 28208,
28105, 28001, 27896, 27790, 27683, 27575, 27466, 27355,
27244, 27132, 27019, 26905, 26789, 26673, 26556, 26437,
26318, 26198, 26077, 25954, 25831, 25707, 25582, 25456,
25329, 25201, 25072, 24942, 24811, 24679, 24546, 24413,
24278, 24143, 24006, 23869, 23731, 23592, 23452, 23311,
23169, 23027, 22883, 22739, 22594, 22448, 22301, 22153,
22004, 21855, 21705, 21554, 21402, 21249, 21096, 20942,
20787, 20631, 20474, 20317, 20159, 20000, 19840, 19680,
19519, 19357, 19194, 19031, 18867, 18702, 18537, 18371,
18204, 18036, 17868, 17699, 17530, 17360, 17189, 17017,
16845, 16672, 16499, 16325, 16150, 15975, 15799, 15623,
15446, 15268, 15090, 14911, 14732, 14552, 14372, 14191,
14009, 13827, 13645, 13462, 13278, 13094, 12909, 12724,
12539, 12353, 12166, 11980, 11792, 11604, 11416, 11227,
11038, 10849, 10659, 10469, 10278, 10087, 9895, 9703,
9511, 9319, 9126, 8932, 8739, 8545, 8351, 8156,
7961, 7766, 7571, 7375, 7179, 6982, 6786, 6589,
6392, 6195, 5997, 5799, 5601, 5403, 5205, 5006,
4807, 4608, 4409, 4210, 4011, 3811, 3611, 3411,
3211, 3011, 2811, 2610, 2410, 2209, 2009, 1808,
1607, 1406, 1206, 1005, 804, 603, 402, 201,
0, -201, -402, -603, -804, -1005, -1206, -1406,
-1607, -1808, -2009, -2209, -2410, -2610, -2811, -3011,
-3211, -3411, -3611, -3811, -4011, -4210, -4409, -4608,
-4807, -5006, -5205, -5403, -5601, -5799, -5997, -6195,
-6392, -6589, -6786, -6982, -7179, -7375, -7571, -7766,
-7961, -8156, -8351, -8545, -8739, -8932, -9126, -9319,
-9511, -9703, -9895, -10087, -10278, -10469, -10659, -10849,
-11038, -11227, -11416, -11604, -11792, -11980, -12166, -12353,
-12539, -12724, -12909, -13094, -13278, -13462, -13645, -13827,
-14009, -14191, -14372, -14552, -14732, -14911, -15090, -15268,
-15446, -15623, -15799, -15975, -16150, -16325, -16499, -16672,
-16845, -17017, -17189, -17360, -17530, -17699, -17868, -18036,
-18204, -18371, -18537, -18702, -18867, -19031, -19194, -19357,
-19519, -19680, -19840, -20000, -20159, -20317, -20474, -20631,
-20787, -20942, -21096, -21249, -21402, -21554, -21705, -21855,
-22004, -22153, -22301, -22448, -22594, -22739, -22883, -23027,
-23169, -23311, -23452, -23592, -23731, -23869, -24006, -24143,
-24278, -24413, -24546, -24679, -24811, -24942, -25072, -25201,
-25329, -25456, -25582, -25707, -25831, -25954, -26077, -26198,
-26318, -26437, -26556, -26673, -26789, -26905, -27019, -27132,
-27244, -27355, -27466, -27575, -27683, -27790, -27896, -28001,
-28105, -28208, -28309, -28410, -28510, -28608, -28706, -28802,
-28897, -28992, -29085, -29177, -29268, -29358, -29446, -29534,
-29621, -29706, -29790, -29873, -29955, -30036, -30116, -30195,
-30272, -30349, -30424, -30498, -30571, -30643, -30713, -30783,
-30851, -30918, -30984, -31049, -31113, -31175, -31236, -31297,
-31356, -31413, -31470, -31525, -31580, -31633, -31684, -31735,
-31785, -31833, -31880, -31926, -31970, -32014, -32056, -32097,
-32137, -32176, -32213, -32249, -32284, -32318, -32350, -32382,
-32412, -32441, -32468, -32495, -32520, -32544, -32567, -32588,
-32609, -32628, -32646, -32662, -32678, -32692, -32705, -32717,
-32727, -32736, -32744, -32751, -32757, -32761, -32764, -32766,
-32767, -32766, -32764, -32761, -32757, -32751, -32744, -32736,
-32727, -32717, -32705, -32692, -32678, -32662, -32646, -32628,
-32609, -32588, -32567, -32544, -32520, -32495, -32468, -32441,
-32412, -32382, -32350, -32318, -32284, -32249, -32213, -32176,
-32137, -32097, -32056, -32014, -31970, -31926, -31880, -31833,
-31785, -31735, -31684, -31633, -31580, -31525, -31470, -31413,
-31356, -31297, -31236, -31175, -31113, -31049, -30984, -30918,
-30851, -30783, -30713, -30643, -30571, -30498, -30424, -30349,
-30272, -30195, -30116, -30036, -29955, -29873, -29790, -29706,
-29621, -29534, -29446, -29358, -29268, -29177, -29085, -28992,
-28897, -28802, -28706, -28608, -28510, -28410, -28309, -28208,
-28105, -28001, -27896, -27790, -27683, -27575, -27466, -27355,
-27244, -27132, -27019, -26905, -26789, -26673, -26556, -26437,
-26318, -26198, -26077, -25954, -25831, -25707, -25582, -25456,
-25329, -25201, -25072, -24942, -24811, -24679, -24546, -24413,
-24278, -24143, -24006, -23869, -23731, -23592, -23452, -23311,
-23169, -23027, -22883, -22739, -22594, -22448, -22301, -22153,
-22004, -21855, -21705, -21554, -21402, -21249, -21096, -20942,
-20787, -20631, -20474, -20317, -20159, -20000, -19840, -19680,
-19519, -19357, -19194, -19031, -18867, -18702, -18537, -18371,
-18204, -18036, -17868, -17699, -17530, -17360, -17189, -17017,
-16845, -16672, -16499, -16325, -16150, -15975, -15799, -15623,
-15446, -15268, -15090, -14911, -14732, -14552, -14372, -14191,
-14009, -13827, -13645, -13462, -13278, -13094, -12909, -12724,
-12539, -12353, -12166, -11980, -11792, -11604, -11416, -11227,
-11038, -10849, -10659, -10469, -10278, -10087, -9895, -9703,
-9511, -9319, -9126, -8932, -8739, -8545, -8351, -8156,
-7961, -7766, -7571, -7375, -7179, -6982, -6786, -6589,
-6392, -6195, -5997, -5799, -5601, -5403, -5205, -5006,
-4807, -4608, -4409, -4210, -4011, -3811, -3611, -3411,
-3211, -3011, -2811, -2610, -2410, -2209, -2009, -1808,
-1607, -1406, -1206, -1005, -804, -603, -402, -201,
};
/*------------------------------------------------------------------------------
| OMX_AudioProcessor::OMX_AudioProcessor
+-----------------------------------------------------------------------------*/
OMX_AudioProcessor::OMX_AudioProcessor(QObject* parent) :
QObject(parent),
m_source("")
{
moveToThread(&m_thread);
m_thread.start();
}
void OMX_AudioProcessor::play()
{
QMetaObject::invokeMethod(this, "audioDecoding");
}
/*------------------------------------------------------------------------------
| OMX_AudioProcessor::play
+-----------------------------------------------------------------------------*/
void OMX_AudioProcessor::audioDecoding()
{
// 0 = headphones, 1 = hdmi
//int audioDest = 1;
int sampleRate = 48000;
int channels = 1;
int bitDepths = sizeof(float)*8;
int bufferSize = (sampleRate*bitDepths*channels) >> 3;
//int phase = 0;
//int inc = 256 << 16;
//int dinc = 0;
//uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
uint8_t* inbuf;
assert(posix_memalign((void**)&inbuf, 16, AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE) >= 0);
int len;
// Open source.
QFile audioFile("/home/pi/usb/big_buck_bunny_1080p_h264.aac");
if (!audioFile.exists()) {
LOG_WARNING(LOG_TAG, "Can't find source.");
return;
}
if (!audioFile.open(QIODevice::ReadOnly)) {
LOG_WARNING(LOG_TAG, "Can't open source.");
return;
}
// Init.
OMX_Core* core = (OMX_Core::instance());
#ifdef ENABLE_ENCODINGS
OMXComponentShared compDecoder = OMXComponentFactory<OMXComponent>::getInstance(
"OMX.broadcom.audio_decode"
);
for (int i = 0; true; i++) {
OMX_AUDIO_PARAM_PORTFORMATTYPE portFormat;
portFormat.nSize = sizeof(OMX_AUDIO_PARAM_PORTFORMATTYPE);
portFormat.nVersion.nVersion = OMX_VERSION;
portFormat.nPortIndex = 120;
portFormat.nIndex = i;
OMX_ERRORTYPE err = compDecoder->GetParameter(OMX_IndexParamAudioPortFormat, &portFormat);
assert(err != OMX_ErrorNoMore);
}
#endif
OMXComponentShared compRenderer = OMXComponentFactory<OMXComponent>::getInstance(
"OMX.broadcom.audio_render"
);
LOG_VERBOSE(LOG_TAG, "Disabling input buffers...");
compRenderer->sendCommand(OMX_CommandPortDisable, 100, NULL);
compRenderer->sendCommand(OMX_CommandPortDisable, 101, NULL);
compRenderer->waitForEvent(OMX_EventCmdComplete, OMX_CommandPortDisable, 100, TIMEOUT_MS);
compRenderer->waitForEvent(OMX_EventCmdComplete, OMX_CommandPortDisable, 101, TIMEOUT_MS);
// Set up number and size of the buffers.
OMX_PARAM_PORTDEFINITIONTYPE portdef;
memset(&portdef, 0, sizeof(OMX_PARAM_PORTDEFINITIONTYPE));
portdef.nSize = sizeof(OMX_PARAM_PORTDEFINITIONTYPE);
portdef.nVersion.nVersion = OMX_VERSION;
portdef.nPortIndex = 100;
compRenderer->GetParameter(OMX_IndexParamPortDefinition, &portdef);
portdef.nBufferSize = bufferSize >> 2;
portdef.nBufferCountActual = 300;
compRenderer->SetParameter(OMX_IndexParamPortDefinition, &portdef);
// set the pcm parameters
OMX_AUDIO_PARAM_PCMMODETYPE pcm;
memset(&pcm, 0, sizeof(OMX_AUDIO_PARAM_PCMMODETYPE));
pcm.nSize = sizeof(OMX_AUDIO_PARAM_PCMMODETYPE);
pcm.nVersion.nVersion = OMX_VERSION;
pcm.nPortIndex = 100;
pcm.nChannels = channels == 6 ? 8 : channels;
pcm.eNumData = OMX_NumericalDataSigned;
pcm.eEndian = OMX_EndianLittle;
pcm.nSamplingRate = sampleRate;
pcm.bInterleaved = OMX_TRUE;
pcm.nBitPerSample = bitDepths;
pcm.ePCMMode = OMX_AUDIO_PCMModeLinear;
switch (channels) {
case 6:
pcm.eChannelMapping[0] = OMX_AUDIO_ChannelLF;
pcm.eChannelMapping[1] = OMX_AUDIO_ChannelRF;
pcm.eChannelMapping[2] = OMX_AUDIO_ChannelCF;
pcm.eChannelMapping[3] = OMX_AUDIO_ChannelLFE;
pcm.eChannelMapping[4] = OMX_AUDIO_ChannelLR;
pcm.eChannelMapping[5] = OMX_AUDIO_ChannelRR;
pcm.eChannelMapping[6] = OMX_AUDIO_ChannelNone;
pcm.eChannelMapping[7] = OMX_AUDIO_ChannelNone;
break;
case 1:
pcm.eChannelMapping[0] = OMX_AUDIO_ChannelCF;
break;
case 8:
pcm.eChannelMapping[0] = OMX_AUDIO_ChannelLF;
pcm.eChannelMapping[1] = OMX_AUDIO_ChannelRF;
pcm.eChannelMapping[2] = OMX_AUDIO_ChannelCF;
pcm.eChannelMapping[3] = OMX_AUDIO_ChannelLFE;
pcm.eChannelMapping[4] = OMX_AUDIO_ChannelLR;
pcm.eChannelMapping[5] = OMX_AUDIO_ChannelRR;
pcm.eChannelMapping[6] = OMX_AUDIO_ChannelLS;
pcm.eChannelMapping[7] = OMX_AUDIO_ChannelRS;
break;
case 4:
pcm.eChannelMapping[0] = OMX_AUDIO_ChannelLF;
pcm.eChannelMapping[1] = OMX_AUDIO_ChannelRF;
pcm.eChannelMapping[2] = OMX_AUDIO_ChannelLR;
pcm.eChannelMapping[3] = OMX_AUDIO_ChannelRR;
break;
case 2:
pcm.eChannelMapping[0] = OMX_AUDIO_ChannelLF;
pcm.eChannelMapping[1] = OMX_AUDIO_ChannelRF;
break;
}
LOG_VERBOSE(LOG_TAG, "Setting PCM parameters...");
compRenderer->SetParameter(OMX_IndexParamAudioPcm, &pcm);
LOG_VERBOSE(LOG_TAG, "Changing state to IDLE...");
compRenderer->sendCommand(OMX_CommandStateSet, OMX_StateIdle, NULL);
compRenderer->waitForEvent(OMX_EventCmdComplete, OMX_CommandStateSet, OMX_StateIdle, TIMEOUT_MS);
LOG_VERBOSE(LOG_TAG, "Providing buffers...");
compRenderer->enablePortBuffers(100);
LOG_VERBOSE(LOG_TAG, "Change state to EXECUTING...");
compRenderer->sendCommand(OMX_CommandStateSet, OMX_StateExecuting, NULL);
compRenderer->waitForEvent(OMX_EventCmdComplete, OMX_CommandStateSet, OMX_StateExecuting, TIMEOUT_MS);
LOG_VERBOSE(LOG_TAG, "Setting audio output...");
OMX_CONFIG_BRCMAUDIODESTINATIONTYPE dest;
memset(&dest, 0 , sizeof(OMX_CONFIG_BRCMAUDIODESTINATIONTYPE));
dest.nSize = sizeof(OMX_CONFIG_BRCMAUDIODESTINATIONTYPE);
dest.nVersion.nVersion = OMX_VERSION;
strcpy((char*)dest.sName, "hdmi");
if (OMX_SetConfig(compRenderer->GetHandle(), OMX_IndexConfigBrcmAudioDestination, &dest) != OMX_ErrorNone)
throw runtime_error("Failed to set config.");
av_register_all();
AVFormatContext* formatContext = avformat_alloc_context(); // TODO: free this.
if (avformat_open_input(&formatContext, "/home/pi/usb/big_buck_bunny_1080p_h264.aac", NULL, NULL) != 0)
throw std::runtime_error("Error while calling avformat_open_input (probably invalid file format)");
if (avformat_find_stream_info(formatContext, NULL) < 0)
throw std::runtime_error("Error while calling avformat_find_stream_info");
LOG_INFORMATION(LOG_TAG, "Found %u streams.", formatContext->nb_streams);
for (unsigned int i = 0; i < formatContext->nb_streams; ++i) {
LOG_INFORMATION(LOG_TAG, "Stream %u: duration is %lld.", i, formatContext->streams[i]->duration);
LOG_INFORMATION(LOG_TAG, "Codec type: %d.", formatContext->streams[i]->codec->codec_type);
LOG_INFORMATION(LOG_TAG, "Codec ID: %d.", formatContext->streams[i]->codec->codec_id);
#if 0
auto stream = avFormat->streams[i]; // pointer to a structure describing the stream
auto codecType = stream->codec->codec_type; // the type of data in this stream, notable values are AVMEDIA_TYPE_VIDEO and AVMEDIA_TYPE_AUDIO
auto codecID = stream->codec->codec_id; // identifier for the codec
#endif
}
// getting the required codec structure
//AVStream* stream = formatContext->streams[0];
AVCodec* codec = avcodec_find_decoder(formatContext->streams[0]->codec->codec_id);
if (codec == NULL)
throw std::runtime_error("Codec required by file not available");
// allocating a structure
AVCodecContext* codecContext = avcodec_alloc_context3(codec);
// we need to make a copy of videoStream->codec->extradata and give it to the context
// make sure that this vector exists as long as the avVideoCodec exists
//vector<uint8_t*> codecContextExtraData(stream->codec->extradata, stream->codec->extradata + stream->codec->extradata_size);
//codecContext->extradata = codecContextExtraData.data();
//codecContext->extradata_size = codecContextExtraData.size();
// initializing the structure by opening the codec
if (avcodec_open2(codecContext, codec, NULL) < 0)
throw std::runtime_error("Could not open codec");
AVPacket packet;
av_init_packet(&packet);
packet.data = inbuf;
packet.size = audioFile.read((char*)inbuf, AUDIO_INBUF_SIZE);
//AVCodecContext* codec = formatContext->streams[0]->codec; // TODO: Choose stream somehow.
AVFrame* decoded_frame = NULL;
// Start decoding.
while (packet.size > 0) {
int gotFrame = 0;
// Alloc decoded frame or set default values.
if (!decoded_frame) {
LOG_VERBOSE(LOG_TAG, "Allocating frame...");
if (!(decoded_frame = avcodec_alloc_frame())) {
LOG_ERROR(LOG_TAG, "Could not allocate audio frame.");
exit(1);
// TODO: Send error event from component.
}
}
else
avcodec_get_frame_defaults(decoded_frame);
// Actually decode the frame.
LOG_VERBOSE(LOG_TAG, "Decoding...");
len = avcodec_decode_audio4(codecContext, decoded_frame, &gotFrame, &packet);
if (len < 0) {
LOG_ERROR(LOG_TAG, "Error while decoding.");
exit(1);
// TODO: Error signal.
}
if (gotFrame) {
// if a frame has been decoded, output it.
LOG_VERBOSE(LOG_TAG, "Got frame!");
int bufferSize = av_samples_get_buffer_size(
NULL, codecContext->channels,
decoded_frame->nb_samples,
codecContext->sample_fmt, 1
);
#if 0
LOG_INFORMATION(LOG_TAG, "Channels: %d.", codecContext->channels);
LOG_INFORMATION(LOG_TAG, "Samples: %d.", decoded_frame->nb_samples);
LOG_INFORMATION(LOG_TAG, "Format: %d.", codecContext->sample_fmt);
LOG_INFORMATION(LOG_TAG, "Sample rate: %d.", codecContext->sample_rate);
LOG_INFORMATION(LOG_TAG, "Buffer size: %d.", bufferSize);
#endif
#if 0
FILE* outfile = fopen("/home/pi/output.pcm", "a");
fwrite(decoded_frame->data[0], 1, bufferSize/codecContext->channels, outfile);
fclose(outfile);
#endif
// TODO: Send to OpenMAX component.
LOG_VERBOSE(LOG_TAG, "Trying to acquire buffer...");
OMX_BUFFERHEADERTYPE* buffer;
if (!compRenderer->waitForInputBufferReady(100, buffer)) {
LOG_WARNING(LOG_TAG, "Failed to acquire buffer.");
return;
}
// TODO: Can I avoid the copy here?
memcpy(buffer->pBuffer, decoded_frame->data[0], bufferSize/6.0);
//buffer->pBuffer = (OMX_U8*)decoded_frame->data;
buffer->pAppPrivate = NULL;
buffer->nOffset = 0;
buffer->nFilledLen = bufferSize/6.0;
compRenderer->EmptyThisBuffer(buffer);
LOG_VERBOSE(LOG_TAG, "EmptyThisBuffer called!");
}
packet.size -= len;
packet.data += len;
packet.dts = packet.pts = AV_NOPTS_VALUE;
if (packet.size < AUDIO_REFILL_THRESH) {
/* Refill the input buffer, to avoid trying to decode
* incomplete frames. Instead of this, one could also use
* a parser, or use a proper container format through
* libavformat. */
memmove(inbuf, packet.data, packet.size);
packet.data = inbuf;
len = audioFile.read((char*)(packet.data + packet.size), AUDIO_INBUF_SIZE - packet.size);
if (len > 0)
packet.size += len;
}
}
#if 0
// iterate for 5 seconds worth of packets
for (int n = 0; n < ((sampleRate*5)/ BUFFER_SIZE_SAMPLES); n++) {
uint8_t* buf;
int16_t* p;
#if 0
uint32_t latency;
#endif
LOG_VERBOSE(LOG_TAG, "Trying to acquire buffer...");
OMX_BUFFERHEADERTYPE* buffer;
if (!compRenderer->waitForInputBufferReady(100, buffer)) {
LOG_WARNING(LOG_TAG, "Failed to acquire buffer.");
return;
}
buf = (uint8_t*)buffer->pBuffer;
p = (int16_t*)buf;
// fill the buffer
for (int i = 0; i < BUFFER_SIZE_SAMPLES; i++) {
int16_t val = SIN(phase);
phase += inc >> 16;
inc += dinc;
if (inc >> 16 < 512)
dinc++;
else
dinc--;
for (int j = 0; j < channels; j++) {
if (bitDepths == 32)
*p++ = 0;
*p++ = val;
}
}
// Try and wait for a minimum latency time (in ms) before
// sending the next packet
#if 0
latency = getLatency(compRenderer->GetHandle());
while (latency > (sampleRate*(MIN_LATENCY_TIME + CTTW_SLEEP_TIME)/1000))
usleep(CTTW_SLEEP_TIME*1000);
#endif
//ret = audioplay_play_buffer(st, buf, buffer_size);
//assert(ret == 0);
buffer->pAppPrivate = NULL;
buffer->nOffset = 0;
buffer->nFilledLen = bufferSize;
compRenderer->EmptyThisBuffer(buffer);
LOG_VERBOSE(LOG_TAG, "EmptyThisBuffer called!");
}
#endif
// TODO: Should be destroyed after.
core->destroyInstance();
}
/*------------------------------------------------------------------------------
| OMX_AudioProcessor::getLatency
+-----------------------------------------------------------------------------*/
uint32_t OMX_AudioProcessor::getLatency(OMX_HANDLETYPE renderer)
{
OMX_PARAM_U32TYPE param;
memset(¶m, 0, sizeof(OMX_PARAM_U32TYPE));
param.nSize = sizeof(OMX_PARAM_U32TYPE);
param.nVersion.nVersion = OMX_VERSION;
param.nPortIndex = 100;
// TODO: instance member getConfig.
assert(OMX_GetConfig(renderer, OMX_IndexConfigAudioRenderingLatency, ¶m) == OMX_ErrorNone);
return param.nU32;
}