Imported Debian version 0.1.3.1
[deb_fdk-aac.git] / aac-enc.c
CommitLineData
56e73ff7
DM
1/* ------------------------------------------------------------------
2 * Copyright (C) 2011 Martin Storsjo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18
19#include <stdio.h>
20#include <stdint.h>
21#include <unistd.h>
22#include <stdlib.h>
23#include "libAACenc/include/aacenc_lib.h"
24#include "wavreader.h"
25
26void usage(const char* name) {
27 fprintf(stderr, "%s [-r bitrate] [-t aot] [-a afterburner] [-s sbr] [-v vbr] in.wav out.aac\n", name);
28 fprintf(stderr, "Supported AOTs:\n");
29 fprintf(stderr, "\t2\tAAC-LC\n");
30 fprintf(stderr, "\t5\tHE-AAC\n");
31 fprintf(stderr, "\t29\tHE-AAC v2\n");
32 fprintf(stderr, "\t23\tAAC-LD\n");
33 fprintf(stderr, "\t39\tAAC-ELD\n");
34}
35
36int main(int argc, char *argv[]) {
37 int bitrate = 64000;
38 int ch;
39 const char *infile, *outfile;
40 FILE *out;
41 void *wav;
42 int format, sample_rate, channels, bits_per_sample;
43 int input_size;
44 uint8_t* input_buf;
45 int16_t* convert_buf;
46 int aot = 2;
47 int afterburner = 1;
48 int eld_sbr = 0;
49 int vbr = 0;
50 HANDLE_AACENCODER handle;
51 CHANNEL_MODE mode;
52 AACENC_InfoStruct info = { 0 };
53 while ((ch = getopt(argc, argv, "r:t:a:s:v:")) != -1) {
54 switch (ch) {
55 case 'r':
56 bitrate = atoi(optarg);
57 break;
58 case 't':
59 aot = atoi(optarg);
60 break;
61 case 'a':
62 afterburner = atoi(optarg);
63 break;
64 case 's':
65 eld_sbr = atoi(optarg);
66 break;
67 case 'v':
68 vbr = atoi(optarg);
69 break;
70 case '?':
71 default:
72 usage(argv[0]);
73 return 1;
74 }
75 }
76 if (argc - optind < 2) {
77 usage(argv[0]);
78 return 1;
79 }
80 infile = argv[optind];
81 outfile = argv[optind + 1];
82
83 wav = wav_read_open(infile);
84 if (!wav) {
85 fprintf(stderr, "Unable to open wav file %s\n", infile);
86 return 1;
87 }
88 if (!wav_get_header(wav, &format, &channels, &sample_rate, &bits_per_sample, NULL)) {
89 fprintf(stderr, "Bad wav file %s\n", infile);
90 return 1;
91 }
92 if (format != 1) {
93 fprintf(stderr, "Unsupported WAV format %d\n", format);
94 return 1;
95 }
96 if (bits_per_sample != 16) {
97 fprintf(stderr, "Unsupported WAV sample depth %d\n", bits_per_sample);
98 return 1;
99 }
100 switch (channels) {
101 case 1: mode = MODE_1; break;
102 case 2: mode = MODE_2; break;
103 case 3: mode = MODE_1_2; break;
104 case 4: mode = MODE_1_2_1; break;
105 case 5: mode = MODE_1_2_2; break;
106 case 6: mode = MODE_1_2_2_1; break;
107 default:
108 fprintf(stderr, "Unsupported WAV channels %d\n", channels);
109 return 1;
110 }
111 if (aacEncOpen(&handle, 0, channels) != AACENC_OK) {
112 fprintf(stderr, "Unable to open encoder\n");
113 return 1;
114 }
115 if (aacEncoder_SetParam(handle, AACENC_AOT, aot) != AACENC_OK) {
116 fprintf(stderr, "Unable to set the AOT\n");
117 return 1;
118 }
119 if (aot == 39 && eld_sbr) {
120 if (aacEncoder_SetParam(handle, AACENC_SBR_MODE, 1) != AACENC_OK) {
121 fprintf(stderr, "Unable to set SBR mode for ELD\n");
122 return 1;
123 }
124 }
125 if (aacEncoder_SetParam(handle, AACENC_SAMPLERATE, sample_rate) != AACENC_OK) {
126 fprintf(stderr, "Unable to set the AOT\n");
127 return 1;
128 }
129 if (aacEncoder_SetParam(handle, AACENC_CHANNELMODE, mode) != AACENC_OK) {
130 fprintf(stderr, "Unable to set the channel mode\n");
131 return 1;
132 }
133 if (aacEncoder_SetParam(handle, AACENC_CHANNELORDER, 1) != AACENC_OK) {
134 fprintf(stderr, "Unable to set the wav channel order\n");
135 return 1;
136 }
137 if (vbr) {
138 if (aacEncoder_SetParam(handle, AACENC_BITRATEMODE, vbr) != AACENC_OK) {
139 fprintf(stderr, "Unable to set the VBR bitrate mode\n");
140 return 1;
141 }
142 } else {
143 if (aacEncoder_SetParam(handle, AACENC_BITRATE, bitrate) != AACENC_OK) {
144 fprintf(stderr, "Unable to set the bitrate\n");
145 return 1;
146 }
147 }
148 if (aacEncoder_SetParam(handle, AACENC_TRANSMUX, 2) != AACENC_OK) {
149 fprintf(stderr, "Unable to set the ADTS transmux\n");
150 return 1;
151 }
152 if (aacEncoder_SetParam(handle, AACENC_AFTERBURNER, afterburner) != AACENC_OK) {
153 fprintf(stderr, "Unable to set the afterburner mode\n");
154 return 1;
155 }
156 if (aacEncEncode(handle, NULL, NULL, NULL, NULL) != AACENC_OK) {
157 fprintf(stderr, "Unable to initialize the encoder\n");
158 return 1;
159 }
160 if (aacEncInfo(handle, &info) != AACENC_OK) {
161 fprintf(stderr, "Unable to get the encoder info\n");
162 return 1;
163 }
164
165 out = fopen(outfile, "wb");
166 if (!out) {
167 perror(outfile);
168 return 1;
169 }
170
171 input_size = channels*2*info.frameLength;
172 input_buf = (uint8_t*) malloc(input_size);
173 convert_buf = (int16_t*) malloc(input_size);
174
175 while (1) {
176 AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
177 AACENC_InArgs in_args = { 0 };
178 AACENC_OutArgs out_args = { 0 };
179 int in_identifier = IN_AUDIO_DATA;
180 int in_size, in_elem_size;
181 int out_identifier = OUT_BITSTREAM_DATA;
182 int out_size, out_elem_size;
183 int read, i;
184 void *in_ptr, *out_ptr;
185 uint8_t outbuf[20480];
186 AACENC_ERROR err;
187
188 read = wav_read_data(wav, input_buf, input_size);
189 for (i = 0; i < read/2; i++) {
190 const uint8_t* in = &input_buf[2*i];
191 convert_buf[i] = in[0] | (in[1] << 8);
192 }
193 if (read <= 0) {
194 in_args.numInSamples = -1;
195 } else {
196 in_ptr = convert_buf;
197 in_size = read;
198 in_elem_size = 2;
199
200 in_args.numInSamples = read/2;
201 in_buf.numBufs = 1;
202 in_buf.bufs = &in_ptr;
203 in_buf.bufferIdentifiers = &in_identifier;
204 in_buf.bufSizes = &in_size;
205 in_buf.bufElSizes = &in_elem_size;
206 }
207 out_ptr = outbuf;
208 out_size = sizeof(outbuf);
209 out_elem_size = 1;
210 out_buf.numBufs = 1;
211 out_buf.bufs = &out_ptr;
212 out_buf.bufferIdentifiers = &out_identifier;
213 out_buf.bufSizes = &out_size;
214 out_buf.bufElSizes = &out_elem_size;
215
216 if ((err = aacEncEncode(handle, &in_buf, &out_buf, &in_args, &out_args)) != AACENC_OK) {
217 if (err == AACENC_ENCODE_EOF)
218 break;
219 fprintf(stderr, "Encoding failed\n");
220 return 1;
221 }
222 if (out_args.numOutBytes == 0)
223 continue;
224 fwrite(outbuf, 1, out_args.numOutBytes, out);
225 }
226 free(input_buf);
227 free(convert_buf);
228 fclose(out);
229 wav_read_close(wav);
230 aacEncClose(&handle);
231
232 return 0;
233}
234