audio_utils/tests/fifo_tests.cpp - platform/system/media - Gitiles

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 // Test program for audio_utils FIFO library.
 // This only tests the single-threaded aspects, not the barriers.

 #include <errno.h>
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
 #include <audio_utils/fifo.h>
 #include <audio_utils/sndfile.h>

 #ifndef min
 #define min(x, y) (((x) < (y)) ? (x) : (y))
 #endif

 int main(int argc, char **argv)
 {
     size_t frameCount = 0;
     size_t maxFramesPerRead = 0;
     size_t maxFramesPerWrite = 0;
     bool readerThrottlesWriter = true;
     bool verbose = false;
     int i;
     for (i = 1; i < argc; i++) {
         char *arg = argv[i];
         if (arg[0] != '-')
             break;
         switch (arg[1]) {
         case 'f':   // FIFO frame count
             frameCount = atoi(&arg[2]);
             break;
         case 'r':   // maximum frame count per read from FIFO
             maxFramesPerRead = atoi(&arg[2]);
             break;
         case 't':   // disable throttling of writer by reader
             readerThrottlesWriter = false;
             break;
         case 'v':   // enable verbose logging
             verbose = true;
             break;
         case 'w':   // maximum frame count per write to FIFO
             maxFramesPerWrite = atoi(&arg[2]);
             break;
         default:
             fprintf(stderr, "%s: unknown option %s\n", argv[0], arg);
             goto usage;
         }
     }
     if (frameCount == 0) {
         frameCount = 256;
     }
     if (maxFramesPerRead == 0) {
         maxFramesPerRead = frameCount;
     }
     if (maxFramesPerWrite == 0) {
         maxFramesPerWrite = frameCount;
     }

     if (argc - i != 2) {
 usage:
         fprintf(stderr, "usage: %s [-f#] [-r#] [-t] [-v] [-w#] in.wav out.wav\n", argv[0]);
         return EXIT_FAILURE;
     }
     char *inputFile = argv[i];
     char *outputFile = argv[i+1];

     SF_INFO sfinfoin;
     memset(&sfinfoin, 0, sizeof(sfinfoin));
     SNDFILE *sfin = sf_open(inputFile, SFM_READ, &sfinfoin);
     if (sfin == NULL) {
         perror(inputFile);
         return EXIT_FAILURE;
     }
     switch (sfinfoin.format & (SF_FORMAT_TYPEMASK | SF_FORMAT_SUBMASK)) {
     case SF_FORMAT_WAV | SF_FORMAT_PCM_16:
     case SF_FORMAT_WAV | SF_FORMAT_PCM_U8:
         break;
     default:
         fprintf(stderr, "%s: unsupported format\n", inputFile);
         sf_close(sfin);
         return EXIT_FAILURE;
     }
     size_t frameSize = sizeof(int16_t) * sfinfoin.channels;
     int16_t *inputBuffer = new int16_t[sfinfoin.frames * sfinfoin.channels];
     sf_count_t actualRead = sf_readf_short(sfin, inputBuffer, sfinfoin.frames);
     if (actualRead != sfinfoin.frames) {
         fprintf(stderr, "%s: unexpected EOF or error\n", inputFile);
         sf_close(sfin);
         return EXIT_FAILURE;
     }
     sf_close(sfin);

     int16_t *outputBuffer = new int16_t[sfinfoin.frames * sfinfoin.channels];
     size_t framesWritten = 0;
     size_t framesRead = 0;
     int16_t *fifoBuffer = new int16_t[frameCount * sfinfoin.channels];
     audio_utils_fifo fifo(frameCount, frameSize, fifoBuffer, readerThrottlesWriter);
     audio_utils_fifo_writer fifoWriter(fifo);
     audio_utils_fifo_reader fifoReader(fifo, readerThrottlesWriter);
     int fifoWriteCount = 0, fifoReadCount = 0;
     int fifoFillLevel = 0, minFillLevel = INT_MAX, maxFillLevel = INT_MIN;
     for (;;) {
         size_t framesToWrite = sfinfoin.frames - framesWritten;
         size_t framesToRead = sfinfoin.frames - framesRead;
         if (framesToWrite == 0 && (framesToRead == 0 || !readerThrottlesWriter)) {
             break;
         }

         if (framesToWrite > maxFramesPerWrite) {
             framesToWrite = maxFramesPerWrite;
         }
         framesToWrite = rand() % (framesToWrite + 1);
         ssize_t actualWritten = fifoWriter.write(
                 &inputBuffer[framesWritten * sfinfoin.channels], framesToWrite);
         if (verbose) {
             printf("wrote %d out of %d\n", (int) actualWritten, (int) framesToWrite);
         }
         if (actualWritten < 0 || (size_t) actualWritten > framesToWrite) {
             fprintf(stderr, "write to FIFO failed\n");
             break;
         }
         if (actualWritten < min((int) frameCount - fifoFillLevel, (int) framesToWrite)) {
             fprintf(stderr, "only wrote %d when should have written min(%d, %d)\n",
                     (int) actualWritten, (int) frameCount - fifoFillLevel, (int) framesToWrite);
         }
         framesWritten += actualWritten;
         if (actualWritten > 0) {
             fifoWriteCount++;
         }
         fifoFillLevel += actualWritten;
         if (verbose) {
             printf("fill level after write %d\n", fifoFillLevel);
         }
         if (fifoFillLevel > maxFillLevel) {
             maxFillLevel = fifoFillLevel;
             if (maxFillLevel > (int) frameCount) {
                 if (readerThrottlesWriter) {
                     printf("maxFillLevel=%d > frameCount=%d\n", maxFillLevel, (int) frameCount);
                     abort();
                 }
             }
         }

         if (framesToRead > maxFramesPerRead) {
             framesToRead = maxFramesPerRead;
         }
         framesToRead = rand() % (framesToRead + 1);
         ssize_t actualRead = fifoReader.read(
                 &outputBuffer[framesRead * sfinfoin.channels], framesToRead);
         if (verbose) {
             printf("read %d out of %d\n", (int) actualRead, (int) framesToRead);
         }
         if (actualRead < 0 || (size_t) actualRead > framesToRead) {
             switch (actualRead) {
             case -EIO:
                 fprintf(stderr, "read from FIFO failed: corrupted indices\n");
                 abort();
                 break;
             case -EOVERFLOW:
                 if (readerThrottlesWriter) {
                     fprintf(stderr, "read from FIFO failed: unexpected overflow\n");
                     abort();
                 }
                 printf("warning: reader lost frames\n");
                 actualRead = 0;
                 break;
             default:
                 if (actualRead < 0) {
                     fprintf(stderr, "read from FIFO failed: unexpected error code %d\n",
                             (int) actualRead);
                 } else {
                     fprintf(stderr, "read from FIFO failed: actualRead=%d > framesToRead=%d\n",
                             (int) actualRead, (int) framesToRead);
                 }
                 abort();
             }
         }
         if (actualRead < min(fifoFillLevel, (int) framesToRead)) {
             //fprintf(stderr, "only read %d when should have read min(%d, %d)\n",
             //        (int) actualRead, fifoFillLevel, (int) framesToRead);
         }
         framesRead += actualRead;
         if (actualRead > 0) {
             fifoReadCount++;
         }
         fifoFillLevel -= actualRead;
         if (verbose) {
             printf("fill level after read %d\n", fifoFillLevel);
         }
         if (fifoFillLevel < minFillLevel) {
             minFillLevel = fifoFillLevel;
             if (minFillLevel < 0) {
                 printf("minFillLevel=%d < 0\n", minFillLevel);
                 abort();
             }
         }
     }
     delete[] inputBuffer;
     inputBuffer = NULL;
     delete[] fifoBuffer;
     fifoBuffer = NULL;

     printf("FIFO non-empty writes: %d, non-empty reads: %d\n", fifoWriteCount, fifoReadCount);
     printf("fill=%d, min=%d, max=%d\n", fifoFillLevel, minFillLevel, maxFillLevel);

     printf("writing output\n");
     SF_INFO sfinfoout;
     memset(&sfinfoout, 0, sizeof(sfinfoout));
     sfinfoout.samplerate = sfinfoin.samplerate;
     sfinfoout.channels = sfinfoin.channels;
     sfinfoout.format = sfinfoin.format;
     SNDFILE *sfout = sf_open(outputFile, SFM_WRITE, &sfinfoout);
     if (sfout == NULL) {
         perror(outputFile);
         return EXIT_FAILURE;
     }
     sf_count_t actualWritten = sf_writef_short(sfout, outputBuffer, framesRead);
     delete[] outputBuffer;
     outputBuffer = NULL;

     if (actualWritten != (sf_count_t) framesRead) {
         fprintf(stderr, "%s: unexpected error\n", outputFile);
         sf_close(sfout);
         return EXIT_FAILURE;
     }
     sf_close(sfout);
     printf("done\n");

     return EXIT_SUCCESS;
 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	// Test program for audio_utils FIFO library.
	// This only tests the single-threaded aspects, not the barriers.

	#include <errno.h>
	#include <limits.h>
	#include <stdlib.h>
	#include <string.h>
	#include <audio_utils/fifo.h>
	#include <audio_utils/sndfile.h>

	#ifndef min
	#define min(x, y) (((x) < (y)) ? (x) : (y))
	#endif

	int main(int argc, char **argv)
	{
	size_t frameCount = 0;
	size_t maxFramesPerRead = 0;
	size_t maxFramesPerWrite = 0;
	bool readerThrottlesWriter = true;
	bool verbose = false;
	int i;
	for (i = 1; i < argc; i++) {
	char *arg = argv[i];
	if (arg[0] != '-')
	break;
	switch (arg[1]) {
	case 'f': // FIFO frame count
	frameCount = atoi(&arg[2]);
	break;
	case 'r': // maximum frame count per read from FIFO
	maxFramesPerRead = atoi(&arg[2]);
	break;
	case 't': // disable throttling of writer by reader
	readerThrottlesWriter = false;
	break;
	case 'v': // enable verbose logging
	verbose = true;
	break;
	case 'w': // maximum frame count per write to FIFO
	maxFramesPerWrite = atoi(&arg[2]);
	break;
	default:
	fprintf(stderr, "%s: unknown option %s\n", argv[0], arg);
	goto usage;
	}
	}
	if (frameCount == 0) {
	frameCount = 256;
	}
	if (maxFramesPerRead == 0) {
	maxFramesPerRead = frameCount;
	}
	if (maxFramesPerWrite == 0) {
	maxFramesPerWrite = frameCount;
	}

	if (argc - i != 2) {
	usage:
	fprintf(stderr, "usage: %s [-f#] [-r#] [-t] [-v] [-w#] in.wav out.wav\n", argv[0]);
	return EXIT_FAILURE;
	}
	char *inputFile = argv[i];
	char *outputFile = argv[i+1];

	SF_INFO sfinfoin;
	memset(&sfinfoin, 0, sizeof(sfinfoin));
	SNDFILE *sfin = sf_open(inputFile, SFM_READ, &sfinfoin);
	if (sfin == NULL) {
	perror(inputFile);
	return EXIT_FAILURE;
	}
	switch (sfinfoin.format & (SF_FORMAT_TYPEMASK \| SF_FORMAT_SUBMASK)) {
	case SF_FORMAT_WAV \| SF_FORMAT_PCM_16:
	case SF_FORMAT_WAV \| SF_FORMAT_PCM_U8:
	break;
	default:
	fprintf(stderr, "%s: unsupported format\n", inputFile);
	sf_close(sfin);
	return EXIT_FAILURE;
	}
	size_t frameSize = sizeof(int16_t) * sfinfoin.channels;
	int16_t inputBuffer = new int16_t[sfinfoin.frames sfinfoin.channels];
	sf_count_t actualRead = sf_readf_short(sfin, inputBuffer, sfinfoin.frames);
	if (actualRead != sfinfoin.frames) {
	fprintf(stderr, "%s: unexpected EOF or error\n", inputFile);
	sf_close(sfin);
	return EXIT_FAILURE;
	}
	sf_close(sfin);

	int16_t outputBuffer = new int16_t[sfinfoin.frames sfinfoin.channels];
	size_t framesWritten = 0;
	size_t framesRead = 0;
	int16_t fifoBuffer = new int16_t[frameCount sfinfoin.channels];
	audio_utils_fifo fifo(frameCount, frameSize, fifoBuffer, readerThrottlesWriter);
	audio_utils_fifo_writer fifoWriter(fifo);
	audio_utils_fifo_reader fifoReader(fifo, readerThrottlesWriter);
	int fifoWriteCount = 0, fifoReadCount = 0;
	int fifoFillLevel = 0, minFillLevel = INT_MAX, maxFillLevel = INT_MIN;
	for (;;) {
	size_t framesToWrite = sfinfoin.frames - framesWritten;
	size_t framesToRead = sfinfoin.frames - framesRead;
	if (framesToWrite == 0 && (framesToRead == 0 \|\| !readerThrottlesWriter)) {
	break;
	}

	if (framesToWrite > maxFramesPerWrite) {
	framesToWrite = maxFramesPerWrite;
	}
	framesToWrite = rand() % (framesToWrite + 1);
	ssize_t actualWritten = fifoWriter.write(
	&inputBuffer[framesWritten * sfinfoin.channels], framesToWrite);
	if (verbose) {
	printf("wrote %d out of %d\n", (int) actualWritten, (int) framesToWrite);
	}
	if (actualWritten < 0 \|\| (size_t) actualWritten > framesToWrite) {
	fprintf(stderr, "write to FIFO failed\n");
	break;
	}
	if (actualWritten < min((int) frameCount - fifoFillLevel, (int) framesToWrite)) {
	fprintf(stderr, "only wrote %d when should have written min(%d, %d)\n",
	(int) actualWritten, (int) frameCount - fifoFillLevel, (int) framesToWrite);
	}
	framesWritten += actualWritten;
	if (actualWritten > 0) {
	fifoWriteCount++;
	}
	fifoFillLevel += actualWritten;
	if (verbose) {
	printf("fill level after write %d\n", fifoFillLevel);
	}
	if (fifoFillLevel > maxFillLevel) {
	maxFillLevel = fifoFillLevel;
	if (maxFillLevel > (int) frameCount) {
	if (readerThrottlesWriter) {
	printf("maxFillLevel=%d > frameCount=%d\n", maxFillLevel, (int) frameCount);
	abort();
	}
	}
	}

	if (framesToRead > maxFramesPerRead) {
	framesToRead = maxFramesPerRead;
	}
	framesToRead = rand() % (framesToRead + 1);
	ssize_t actualRead = fifoReader.read(
	&outputBuffer[framesRead * sfinfoin.channels], framesToRead);
	if (verbose) {
	printf("read %d out of %d\n", (int) actualRead, (int) framesToRead);
	}
	if (actualRead < 0 \|\| (size_t) actualRead > framesToRead) {
	switch (actualRead) {
	case -EIO:
	fprintf(stderr, "read from FIFO failed: corrupted indices\n");
	abort();
	break;
	case -EOVERFLOW:
	if (readerThrottlesWriter) {
	fprintf(stderr, "read from FIFO failed: unexpected overflow\n");
	abort();
	}
	printf("warning: reader lost frames\n");
	actualRead = 0;
	break;
	default:
	if (actualRead < 0) {
	fprintf(stderr, "read from FIFO failed: unexpected error code %d\n",
	(int) actualRead);
	} else {
	fprintf(stderr, "read from FIFO failed: actualRead=%d > framesToRead=%d\n",
	(int) actualRead, (int) framesToRead);
	}
	abort();
	}
	}
	if (actualRead < min(fifoFillLevel, (int) framesToRead)) {
	//fprintf(stderr, "only read %d when should have read min(%d, %d)\n",
	// (int) actualRead, fifoFillLevel, (int) framesToRead);
	}
	framesRead += actualRead;
	if (actualRead > 0) {
	fifoReadCount++;
	}
	fifoFillLevel -= actualRead;
	if (verbose) {
	printf("fill level after read %d\n", fifoFillLevel);
	}
	if (fifoFillLevel < minFillLevel) {
	minFillLevel = fifoFillLevel;
	if (minFillLevel < 0) {
	printf("minFillLevel=%d < 0\n", minFillLevel);
	abort();
	}
	}
	}
	delete[] inputBuffer;
	inputBuffer = NULL;
	delete[] fifoBuffer;
	fifoBuffer = NULL;

	printf("FIFO non-empty writes: %d, non-empty reads: %d\n", fifoWriteCount, fifoReadCount);
	printf("fill=%d, min=%d, max=%d\n", fifoFillLevel, minFillLevel, maxFillLevel);

	printf("writing output\n");
	SF_INFO sfinfoout;
	memset(&sfinfoout, 0, sizeof(sfinfoout));
	sfinfoout.samplerate = sfinfoin.samplerate;
	sfinfoout.channels = sfinfoin.channels;
	sfinfoout.format = sfinfoin.format;
	SNDFILE *sfout = sf_open(outputFile, SFM_WRITE, &sfinfoout);
	if (sfout == NULL) {
	perror(outputFile);
	return EXIT_FAILURE;
	}
	sf_count_t actualWritten = sf_writef_short(sfout, outputBuffer, framesRead);
	delete[] outputBuffer;
	outputBuffer = NULL;

	if (actualWritten != (sf_count_t) framesRead) {
	fprintf(stderr, "%s: unexpected error\n", outputFile);
	sf_close(sfout);
	return EXIT_FAILURE;
	}
	sf_close(sfout);
	printf("done\n");

	return EXIT_SUCCESS;
	}