Add a tool for testing decoding+encoding in a number of configurations

This commit is contained in:
Martin Storsjo 2017-06-27 14:47:01 +03:00
parent 2326faaf8f
commit bf5a6867c7
2 changed files with 369 additions and 1 deletions

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@ -39,11 +39,14 @@ libfdk_aac_la_LDFLAGS = -version-info @FDK_AAC_VERSION@ -no-undefined \
-export-symbols $(top_srcdir)/fdk-aac.sym -export-symbols $(top_srcdir)/fdk-aac.sym
if EXAMPLE if EXAMPLE
bin_PROGRAMS = aac-enc$(EXEEXT) bin_PROGRAMS = aac-enc$(EXEEXT) test-encode-decode$(EXEEXT)
aac_enc_LDADD = libfdk-aac.la aac_enc_LDADD = libfdk-aac.la
aac_enc_SOURCES = aac-enc.c wavreader.c aac_enc_SOURCES = aac-enc.c wavreader.c
test_encode_decode_LDADD = libfdk-aac.la
test_encode_decode_SOURCES = test-encode-decode.c wavreader.c
noinst_HEADERS = wavreader.h noinst_HEADERS = wavreader.h
endif endif

365
test-encode-decode.c Normal file
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@ -0,0 +1,365 @@
/* ------------------------------------------------------------------
* Copyright (C) 2011 Martin Storsjo
*
* 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.
* -------------------------------------------------------------------
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "aacenc_lib.h"
#include "aacdecoder_lib.h"
#include "wavreader.h"
static int encoder_input_samples, encoder_input_size;
static int decoder_output_skip;
static int16_t *encoder_input;
static int max_diff;
static uint64_t diff_sum, diff_samples;
static void init_encoder_input(void) {
encoder_input_samples = 0;
max_diff = 0;
diff_sum = diff_samples = 0;
}
static void free_encoder_input(void) {
free(encoder_input);
encoder_input = NULL;
encoder_input_size = 0;
}
static void append_encoder_input(const int16_t *input, int samples) {
if (encoder_input_samples + samples > encoder_input_size) {
int size = 2*(encoder_input_samples + samples);
int16_t *ptr = realloc(encoder_input, size * sizeof(*encoder_input));
if (!ptr)
abort();
encoder_input = ptr;
encoder_input_size = size;
}
memcpy(encoder_input + encoder_input_samples, input, samples * sizeof(*input));
encoder_input_samples += samples;
}
static void compare_decoder_output(const int16_t *output, int samples) {
int i;
// TODO: Stereo upconvert?
if (decoder_output_skip > 0) {
int n = samples;
if (n > decoder_output_skip)
n = decoder_output_skip;
output += n;
samples -= n;
decoder_output_skip -= n;
if (samples <= 0)
return;
}
if (samples > encoder_input_samples)
samples = encoder_input_samples;
for (i = 0; i < samples; i++) {
int diff = abs(encoder_input[i] - output[i]);
if (diff > max_diff)
max_diff = diff;
diff_sum += diff;
diff_samples++;
}
memmove(encoder_input, encoder_input + samples, (encoder_input_samples - samples) * sizeof(*encoder_input));
encoder_input_samples -= samples;
}
static int decode(HANDLE_AACDECODER decoder, const uint8_t *ptr, int size, uint8_t *decoder_buffer, int decoder_buffer_size, int channels) {
AAC_DECODER_ERROR err;
CStreamInfo *info;
UINT valid, buffer_size;
do {
valid = buffer_size = size;
err = aacDecoder_Fill(decoder, (UCHAR**) &ptr, &buffer_size, &valid);
ptr += buffer_size - valid;
size -= buffer_size - valid;
if (err == AAC_DEC_NOT_ENOUGH_BITS)
continue;
if (err != AAC_DEC_OK)
break;
err = aacDecoder_DecodeFrame(decoder, (INT_PCM *) decoder_buffer, decoder_buffer_size / sizeof(INT_PCM), 0);
if (!ptr && err != AAC_DEC_OK)
break;
if (err == AAC_DEC_NOT_ENOUGH_BITS)
continue;
if (err != AAC_DEC_OK) {
fprintf(stderr, "Decoding failed\n");
return 1;
}
info = aacDecoder_GetStreamInfo(decoder);
if (info->numChannels != channels) {
fprintf(stderr, "Mismatched number of channels, input %d, output %d\n", channels, info->numChannels);
return 1;
}
compare_decoder_output((int16_t*) decoder_buffer, info->numChannels * info->frameSize);
} while (size > 0);
return 0;
}
static int test_encode_decode(const char *infile, int aot, int afterburner, int eld_sbr, int vbr, int bitrate, int adts) {
void *wav;
int format, sample_rate, channels, bits_per_sample;
int input_size;
uint8_t* input_buf;
int16_t* convert_buf;
HANDLE_AACENCODER encoder;
CHANNEL_MODE mode;
AACENC_InfoStruct info = { 0 };
HANDLE_AACDECODER decoder;
int ret = 0;
int decoder_buffer_size = 2048 * 2 * 8;
uint8_t* decoder_buffer = malloc(decoder_buffer_size);
int avg_diff;
printf("Testing encoding with aot %d afterburner %d eld_sbr %d vbr %d bitrate %d adts %d\n", aot, afterburner, eld_sbr, vbr, bitrate, adts);
init_encoder_input();
wav = wav_read_open(infile);
if (!wav) {
fprintf(stderr, "Unable to open wav file %s\n", infile);
return 1;
}
if (!wav_get_header(wav, &format, &channels, &sample_rate, &bits_per_sample, NULL)) {
fprintf(stderr, "Bad wav file %s\n", infile);
return 1;
}
if (format != 1) {
fprintf(stderr, "Unsupported WAV format %d\n", format);
return 1;
}
if (bits_per_sample != 16) {
fprintf(stderr, "Unsupported WAV sample depth %d\n", bits_per_sample);
return 1;
}
switch (channels) {
case 1: mode = MODE_1; break;
case 2: mode = MODE_2; break;
case 3: mode = MODE_1_2; break;
case 4: mode = MODE_1_2_1; break;
case 5: mode = MODE_1_2_2; break;
case 6: mode = MODE_1_2_2_1; break;
default:
fprintf(stderr, "Unsupported WAV channels %d\n", channels);
return 1;
}
if (aacEncOpen(&encoder, 0, channels) != AACENC_OK) {
fprintf(stderr, "Unable to open encoder\n");
return 1;
}
if (aacEncoder_SetParam(encoder, AACENC_AOT, aot) != AACENC_OK) {
fprintf(stderr, "Unable to set the AOT\n");
return 1;
}
if (aot == 39 && eld_sbr) {
if (aacEncoder_SetParam(encoder, AACENC_SBR_MODE, 1) != AACENC_OK) {
fprintf(stderr, "Unable to set SBR mode for ELD\n");
return 1;
}
}
if (aacEncoder_SetParam(encoder, AACENC_SAMPLERATE, sample_rate) != AACENC_OK) {
fprintf(stderr, "Unable to set the AOT\n");
return 1;
}
if (aacEncoder_SetParam(encoder, AACENC_CHANNELMODE, mode) != AACENC_OK) {
fprintf(stderr, "Unable to set the channel mode\n");
return 1;
}
if (aacEncoder_SetParam(encoder, AACENC_CHANNELORDER, 1) != AACENC_OK) {
fprintf(stderr, "Unable to set the wav channel order\n");
return 1;
}
if (vbr) {
if (aacEncoder_SetParam(encoder, AACENC_BITRATEMODE, vbr) != AACENC_OK) {
fprintf(stderr, "Unable to set the VBR bitrate mode\n");
return 1;
}
} else {
if (aacEncoder_SetParam(encoder, AACENC_BITRATE, bitrate) != AACENC_OK) {
fprintf(stderr, "Unable to set the bitrate\n");
return 1;
}
}
if (aacEncoder_SetParam(encoder, AACENC_TRANSMUX, adts ? 2 : 0) != AACENC_OK) {
fprintf(stderr, "Unable to set the ADTS transmux\n");
return 1;
}
if (aacEncoder_SetParam(encoder, AACENC_AFTERBURNER, afterburner) != AACENC_OK) {
fprintf(stderr, "Unable to set the afterburner mode\n");
return 1;
}
if (aacEncEncode(encoder, NULL, NULL, NULL, NULL) != AACENC_OK) {
fprintf(stderr, "Unable to initialize the encoder\n");
return 1;
}
if (aacEncInfo(encoder, &info) != AACENC_OK) {
fprintf(stderr, "Unable to get the encoder info\n");
return 1;
}
input_size = channels*2*info.frameLength;
input_buf = (uint8_t*) malloc(input_size);
convert_buf = (int16_t*) malloc(input_size);
decoder_output_skip = channels * info.nDelay;
decoder = aacDecoder_Open(adts ? TT_MP4_ADTS : TT_MP4_RAW, 1);
if (!adts) {
UCHAR *bufArray[] = { info.confBuf };
if (aacDecoder_ConfigRaw(decoder, (UCHAR**) bufArray, &info.confSize) != AAC_DEC_OK) {
fprintf(stderr, "Unable to set ASC\n");
ret = 1;
goto end;
}
}
aacDecoder_SetParam(decoder, AAC_CONCEAL_METHOD, 1);
aacDecoder_SetParam(decoder, AAC_PCM_LIMITER_ENABLE, 0);
while (1) {
AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
AACENC_InArgs in_args = { 0 };
AACENC_OutArgs out_args = { 0 };
int in_identifier = IN_AUDIO_DATA;
int in_size, in_elem_size;
int out_identifier = OUT_BITSTREAM_DATA;
int out_size, out_elem_size;
int read, i;
void *in_ptr, *out_ptr;
uint8_t outbuf[20480];
AACENC_ERROR err;
read = wav_read_data(wav, input_buf, input_size);
for (i = 0; i < read/2; i++) {
const uint8_t* in = &input_buf[2*i];
convert_buf[i] = in[0] | (in[1] << 8);
}
in_ptr = convert_buf;
in_size = read;
in_elem_size = 2;
in_buf.numBufs = 1;
in_buf.bufs = &in_ptr;
in_buf.bufferIdentifiers = &in_identifier;
in_buf.bufSizes = &in_size;
in_buf.bufElSizes = &in_elem_size;
if (read <= 0) {
in_args.numInSamples = -1;
} else {
in_args.numInSamples = read/2;
append_encoder_input(convert_buf, in_args.numInSamples);
}
out_ptr = outbuf;
out_size = sizeof(outbuf);
out_elem_size = 1;
out_buf.numBufs = 1;
out_buf.bufs = &out_ptr;
out_buf.bufferIdentifiers = &out_identifier;
out_buf.bufSizes = &out_size;
out_buf.bufElSizes = &out_elem_size;
if ((err = aacEncEncode(encoder, &in_buf, &out_buf, &in_args, &out_args)) != AACENC_OK) {
if (err == AACENC_ENCODE_EOF)
break;
fprintf(stderr, "Encoding failed\n");
ret = 1;
goto end;
}
if (out_args.numOutBytes == 0)
continue;
if (decode(decoder, outbuf, out_args.numOutBytes, decoder_buffer, decoder_buffer_size, channels)) {
ret = 1;
goto end;
}
}
if (encoder_input_samples > 0) {
fprintf(stderr, "%d unmatched samples left at the end\n", encoder_input_samples);
ret = 1;
goto end;
}
avg_diff = 0;
if (diff_samples > 0)
avg_diff = diff_sum / diff_samples;
if (/*max_diff > 7000 ||*/ avg_diff > ((aot == 23) ? 2500 : (aot == 29) ? 1000 : 300)) {
fprintf(stderr, "max_diff %d, avg_diff %d\n", max_diff, avg_diff);
ret = 1;
goto end;
}
end:
free(input_buf);
free(convert_buf);
wav_read_close(wav);
aacEncClose(&encoder);
free(decoder_buffer);
aacDecoder_Close(decoder);
return ret;
}
int main(int argc, char *argv[]) {
const char* infile;
void *wav;
int sample_rate, channels;
int failures = 0;
int i;
if (argc < 2) {
printf("%s input.wav\n", argv[0]);
return 1;
}
infile = argv[1];
wav = wav_read_open(infile);
if (!wav) {
fprintf(stderr, "Unable to open wav file %s\n", infile);
return 1;
}
if (!wav_get_header(wav, NULL, &channels, &sample_rate, NULL, NULL)) {
fprintf(stderr, "Bad wav file %s\n", infile);
return 1;
}
wav_read_close(wav);
failures += test_encode_decode(infile, 2, 0, 0, 0, 64000, 0); // AAC-LC, without afterburner
for (i = 0; i < 2; i++)
failures += test_encode_decode(infile, 2, 1, 0, 0, 64000, i); // AAC-LC
for (i = 1; i <= 5; i++)
failures += test_encode_decode(infile, 2, 1, 0, i, 0, 0); // AAC-LC VBR
if (channels == 2) {
// HE-AACv2 only works for stereo; HE-AACv1 gets upconverted to stereo (which we don't match properly)
for (i = 0; i < 2; i++)
failures += test_encode_decode(infile, 5, 1, 0, 0, 64000, i); // HE-AAC
for (i = 1; i <= 5; i++)
failures += test_encode_decode(infile, 5, 1, 0, i, 0, 0); // HE-AAC VBR
for (i = 0; i < 2; i++)
failures += test_encode_decode(infile, 29, 1, 0, 0, 64000, i); // HE-AACv2
for (i = 1; i <= 5; i++)
failures += test_encode_decode(infile, 29, 1, 0, i, 0, 0); // HE-AACv2 VBR
}
if (channels == 1)
failures += test_encode_decode(infile, 23, 1, 0, 0, 64000, 0); // AAC-LD
failures += test_encode_decode(infile, 39, 1, 0, 0, 64000, 0); // AAC-ELD
failures += test_encode_decode(infile, 39, 1, 1, 0, 64000, 0); // AAC-ELD with SBR
free_encoder_input();
printf("%d failures\n", failures);
return failures;
}