trAvis - MANAGER

Edit File: aac-enc.c

/* ------------------------------------------------------------------ * 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> #if defined(_MSC_VER) #include <getopt.h> #else #include <unistd.h> #endif #include <stdlib.h> #include "libAACenc/include/aacenc_lib.h" #include "wavreader.h" void usage(const char* name) { fprintf(stderr, "%s [-r bitrate] [-t aot] [-a afterburner] [-s sbr] [-v vbr] in.wav out.aac\n", name); fprintf(stderr, "Supported AOTs:\n"); fprintf(stderr, "\t2\tAAC-LC\n"); fprintf(stderr, "\t5\tHE-AAC\n"); fprintf(stderr, "\t29\tHE-AAC v2\n"); fprintf(stderr, "\t23\tAAC-LD\n"); fprintf(stderr, "\t39\tAAC-ELD\n"); } int main(int argc, char *argv[]) { int bitrate = 64000; int ch; const char *infile, *outfile; FILE *out; void *wav; int format, sample_rate, channels, bits_per_sample; int input_size; uint8_t* input_buf; int16_t* convert_buf; int aot = 2; int afterburner = 1; int eld_sbr = 0; int vbr = 0; HANDLE_AACENCODER handle; CHANNEL_MODE mode; AACENC_InfoStruct info = { 0 }; while ((ch = getopt(argc, argv, "r:t:a:s:v:")) != -1) { switch (ch) { case 'r': bitrate = atoi(optarg); break; case 't': aot = atoi(optarg); break; case 'a': afterburner = atoi(optarg); break; case 's': eld_sbr = atoi(optarg); break; case 'v': vbr = atoi(optarg); break; case '?': default: usage(argv[0]); return 1; } } if (argc - optind < 2) { usage(argv[0]); return 1; } infile = argv[optind]; outfile = argv[optind + 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, &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(&handle, 0, channels) != AACENC_OK) { fprintf(stderr, "Unable to open encoder\n"); return 1; } if (aacEncoder_SetParam(handle, AACENC_AOT, aot) != AACENC_OK) { fprintf(stderr, "Unable to set the AOT\n"); return 1; } if (aot == 39 && eld_sbr) { if (aacEncoder_SetParam(handle, AACENC_SBR_MODE, 1) != AACENC_OK) { fprintf(stderr, "Unable to set SBR mode for ELD\n"); return 1; } } if (aacEncoder_SetParam(handle, AACENC_SAMPLERATE, sample_rate) != AACENC_OK) { fprintf(stderr, "Unable to set the AOT\n"); return 1; } if (aacEncoder_SetParam(handle, AACENC_CHANNELMODE, mode) != AACENC_OK) { fprintf(stderr, "Unable to set the channel mode\n"); return 1; } if (aacEncoder_SetParam(handle, AACENC_CHANNELORDER, 1) != AACENC_OK) { fprintf(stderr, "Unable to set the wav channel order\n"); return 1; } if (vbr) { if (aacEncoder_SetParam(handle, AACENC_BITRATEMODE, vbr) != AACENC_OK) { fprintf(stderr, "Unable to set the VBR bitrate mode\n"); return 1; } } else { if (aacEncoder_SetParam(handle, AACENC_BITRATE, bitrate) != AACENC_OK) { fprintf(stderr, "Unable to set the bitrate\n"); return 1; } } if (aacEncoder_SetParam(handle, AACENC_TRANSMUX, 2) != AACENC_OK) { fprintf(stderr, "Unable to set the ADTS transmux\n"); return 1; } if (aacEncoder_SetParam(handle, AACENC_AFTERBURNER, afterburner) != AACENC_OK) { fprintf(stderr, "Unable to set the afterburner mode\n"); return 1; } if (aacEncEncode(handle, NULL, NULL, NULL, NULL) != AACENC_OK) { fprintf(stderr, "Unable to initialize the encoder\n"); return 1; } if (aacEncInfo(handle, &info) != AACENC_OK) { fprintf(stderr, "Unable to get the encoder info\n"); return 1; } out = fopen(outfile, "wb"); if (!out) { perror(outfile); return 1; } input_size = channels*2*info.frameLength; input_buf = (uint8_t*) malloc(input_size); convert_buf = (int16_t*) malloc(input_size); 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); } if (read <= 0) { in_args.numInSamples = -1; } else { in_ptr = convert_buf; in_size = read; in_elem_size = 2; in_args.numInSamples = read/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; } 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(handle, &in_buf, &out_buf, &in_args, &out_args)) != AACENC_OK) { if (err == AACENC_ENCODE_EOF) break; fprintf(stderr, "Encoding failed\n"); return 1; } if (out_args.numOutBytes == 0) continue; fwrite(outbuf, 1, out_args.numOutBytes, out); } free(input_buf); free(convert_buf); fclose(out); wav_read_close(wav); aacEncClose(&handle); return 0; }