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Diffstat (limited to 'src/plugins/ffmpeg/libavcodec/libfaad.c')
-rw-r--r--src/plugins/ffmpeg/libavcodec/libfaad.c339
1 files changed, 0 insertions, 339 deletions
diff --git a/src/plugins/ffmpeg/libavcodec/libfaad.c b/src/plugins/ffmpeg/libavcodec/libfaad.c
deleted file mode 100644
index bb901f9..0000000
--- a/src/plugins/ffmpeg/libavcodec/libfaad.c
+++ /dev/null
@@ -1,339 +0,0 @@
1/*
2 * Faad decoder
3 * Copyright (c) 2003 Zdenek Kabelac.
4 * Copyright (c) 2004 Thomas Raivio.
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23/**
24 * @file faad.c
25 * AAC decoder.
26 *
27 * still a bit unfinished - but it plays something
28 */
29
30#include "avcodec.h"
31#include "faad.h"
32
33#ifndef FAADAPI
34#define FAADAPI
35#endif
36
37/*
38 * when CONFIG_LIBFAADBIN is defined the libfaad will be opened at runtime
39 */
40//#undef CONFIG_LIBFAADBIN
41//#define CONFIG_LIBFAADBIN
42
43#ifdef CONFIG_LIBFAADBIN
44#include <dlfcn.h>
45static const char* libfaadname = "libfaad.so";
46#else
47#define dlopen(a)
48#define dlclose(a)
49#endif
50
51typedef struct {
52 void* handle; /* dlopen handle */
53 void* faac_handle; /* FAAD library handle */
54 int sample_size;
55 int init;
56
57 /* faad calls */
58 faacDecHandle FAADAPI (*faacDecOpen)(void);
59 faacDecConfigurationPtr FAADAPI (*faacDecGetCurrentConfiguration)(faacDecHandle hDecoder);
60#ifndef FAAD2_VERSION
61 int FAADAPI (*faacDecSetConfiguration)(faacDecHandle hDecoder,
62 faacDecConfigurationPtr config);
63 int FAADAPI (*faacDecInit)(faacDecHandle hDecoder,
64 unsigned char *buffer,
65 unsigned long *samplerate,
66 unsigned long *channels);
67 int FAADAPI (*faacDecInit2)(faacDecHandle hDecoder, unsigned char *pBuffer,
68 unsigned long SizeOfDecoderSpecificInfo,
69 unsigned long *samplerate, unsigned long *channels);
70 int FAADAPI (*faacDecDecode)(faacDecHandle hDecoder,
71 unsigned char *buffer,
72 unsigned long *bytesconsumed,
73 short *sample_buffer,
74 unsigned long *samples);
75#else
76 unsigned char FAADAPI (*faacDecSetConfiguration)(faacDecHandle hDecoder,
77 faacDecConfigurationPtr config);
78 long FAADAPI (*faacDecInit)(faacDecHandle hDecoder,
79 unsigned char *buffer,
80 unsigned long buffer_size,
81 unsigned long *samplerate,
82 unsigned char *channels);
83 char FAADAPI (*faacDecInit2)(faacDecHandle hDecoder, unsigned char *pBuffer,
84 unsigned long SizeOfDecoderSpecificInfo,
85 unsigned long *samplerate, unsigned char *channels);
86 void *FAADAPI (*faacDecDecode)(faacDecHandle hDecoder,
87 faacDecFrameInfo *hInfo,
88 unsigned char *buffer,
89 unsigned long buffer_size);
90 char* FAADAPI (*faacDecGetErrorMessage)(unsigned char errcode);
91#endif
92
93 void FAADAPI (*faacDecClose)(faacDecHandle hDecoder);
94
95
96} FAACContext;
97
98static const unsigned long faac_srates[] =
99{
100 96000, 88200, 64000, 48000, 44100, 32000,
101 24000, 22050, 16000, 12000, 11025, 8000
102};
103
104static void channel_setup(AVCodecContext *avctx)
105{
106#ifdef FAAD2_VERSION
107 FAACContext *s = avctx->priv_data;
108 if (avctx->request_channels > 0 && avctx->request_channels == 2 &&
109 avctx->request_channels < avctx->channels) {
110 faacDecConfigurationPtr faac_cfg;
111 avctx->channels = 2;
112 faac_cfg = s->faacDecGetCurrentConfiguration(s->faac_handle);
113 faac_cfg->downMatrix = 1;
114 s->faacDecSetConfiguration(s->faac_handle, faac_cfg);
115 }
116#endif
117}
118
119static int faac_init_mp4(AVCodecContext *avctx)
120{
121 FAACContext *s = avctx->priv_data;
122 unsigned long samplerate;
123#ifndef FAAD2_VERSION
124 unsigned long channels;
125#else
126 unsigned char channels;
127#endif
128 int r = 0;
129
130 if (avctx->extradata){
131 r = s->faacDecInit2(s->faac_handle, (uint8_t*) avctx->extradata,
132 avctx->extradata_size,
133 &samplerate, &channels);
134 if (r < 0){
135 av_log(avctx, AV_LOG_ERROR,
136 "faacDecInit2 failed r:%d sr:%ld ch:%ld s:%d\n",
137 r, samplerate, (long)channels, avctx->extradata_size);
138 } else {
139 avctx->sample_rate = samplerate;
140 avctx->channels = channels;
141 channel_setup(avctx);
142 s->init = 1;
143 }
144 }
145
146 return r;
147}
148
149static int faac_decode_frame(AVCodecContext *avctx,
150 void *data, int *data_size,
151 uint8_t *buf, int buf_size)
152{
153 FAACContext *s = avctx->priv_data;
154#ifndef FAAD2_VERSION
155 unsigned long bytesconsumed;
156 short *sample_buffer = NULL;
157 unsigned long samples;
158 int out;
159#else
160 faacDecFrameInfo frame_info;
161 void *out;
162#endif
163 if(buf_size == 0)
164 return 0;
165#ifndef FAAD2_VERSION
166 out = s->faacDecDecode(s->faac_handle,
167 (unsigned char*)buf,
168 &bytesconsumed,
169 data,
170 &samples);
171 samples *= s->sample_size;
172 if (data_size)
173 *data_size = samples;
174 return (buf_size < (int)bytesconsumed)
175 ? buf_size : (int)bytesconsumed;
176#else
177
178 if(!s->init){
179 unsigned long srate;
180 unsigned char channels;
181 int r = s->faacDecInit(s->faac_handle, buf, buf_size, &srate, &channels);
182 if(r < 0){
183 av_log(avctx, AV_LOG_ERROR, "faac: codec init failed.\n");
184 return -1;
185 }
186 avctx->sample_rate = srate;
187 avctx->channels = channels;
188 channel_setup(avctx);
189 s->init = 1;
190 }
191
192 out = s->faacDecDecode(s->faac_handle, &frame_info, (unsigned char*)buf, (unsigned long)buf_size);
193
194 if (frame_info.error > 0) {
195 av_log(avctx, AV_LOG_ERROR, "faac: frame decoding failed: %s\n",
196 s->faacDecGetErrorMessage(frame_info.error));
197 return -1;
198 }
199 if (!avctx->frame_size)
200 avctx->frame_size = frame_info.samples/avctx->channels;
201 frame_info.samples *= s->sample_size;
202 memcpy(data, out, frame_info.samples); // CHECKME - can we cheat this one
203
204 if (data_size)
205 *data_size = frame_info.samples;
206
207 return (buf_size < (int)frame_info.bytesconsumed)
208 ? buf_size : (int)frame_info.bytesconsumed;
209#endif
210}
211
212static av_cold int faac_decode_end(AVCodecContext *avctx)
213{
214 FAACContext *s = avctx->priv_data;
215
216 s->faacDecClose(s->faac_handle);
217
218 dlclose(s->handle);
219 return 0;
220}
221
222static av_cold int faac_decode_init(AVCodecContext *avctx)
223{
224 FAACContext *s = avctx->priv_data;
225 faacDecConfigurationPtr faac_cfg;
226
227#ifdef CONFIG_LIBFAADBIN
228 const char* err = 0;
229
230 s->handle = dlopen(libfaadname, RTLD_LAZY);
231 if (!s->handle)
232 {
233 av_log(avctx, AV_LOG_ERROR, "FAAD library: %s could not be opened! \n%s\n",
234 libfaadname, dlerror());
235 return -1;
236 }
237
238#define dfaac(a) do { \
239 const char* n = AV_STRINGIFY(faacDec ## a); \
240 if (!err && !(s->faacDec ## a = dlsym(s->handle, n))) { \
241 err = n; \
242 } \
243 } while(0)
244#else /* !CONFIG_LIBFAADBIN */
245#define dfaac(a) s->faacDec ## a = faacDec ## a
246#endif /* CONFIG_LIBFAADBIN */
247
248 // resolve all needed function calls
249 dfaac(Open);
250 dfaac(Close);
251 dfaac(GetCurrentConfiguration);
252 dfaac(SetConfiguration);
253 dfaac(Init);
254 dfaac(Init2);
255 dfaac(Decode);
256#ifdef FAAD2_VERSION
257 dfaac(GetErrorMessage);
258#endif
259
260#undef dfaac
261
262#ifdef CONFIG_LIBFAADBIN
263 if (err) {
264 dlclose(s->handle);
265 av_log(avctx, AV_LOG_ERROR, "FAAD library: cannot resolve %s in %s!\n",
266 err, libfaadname);
267 return -1;
268 }
269#endif
270
271 s->faac_handle = s->faacDecOpen();
272 if (!s->faac_handle) {
273 av_log(avctx, AV_LOG_ERROR, "FAAD library: cannot create handler!\n");
274 faac_decode_end(avctx);
275 return -1;
276 }
277
278
279 faac_cfg = s->faacDecGetCurrentConfiguration(s->faac_handle);
280
281 if (faac_cfg) {
282 switch (avctx->bits_per_sample) {
283 case 8: av_log(avctx, AV_LOG_ERROR, "FAADlib unsupported bps %d\n", avctx->bits_per_sample); break;
284 default:
285 case 16:
286#ifdef FAAD2_VERSION
287 faac_cfg->outputFormat = FAAD_FMT_16BIT;
288#endif
289 s->sample_size = 2;
290 break;
291 case 24:
292#ifdef FAAD2_VERSION
293 faac_cfg->outputFormat = FAAD_FMT_24BIT;
294#endif
295 s->sample_size = 3;
296 break;
297 case 32:
298#ifdef FAAD2_VERSION
299 faac_cfg->outputFormat = FAAD_FMT_32BIT;
300#endif
301 s->sample_size = 4;
302 break;
303 }
304
305 faac_cfg->defSampleRate = (!avctx->sample_rate) ? 44100 : avctx->sample_rate;
306 faac_cfg->defObjectType = LC;
307 }
308
309 s->faacDecSetConfiguration(s->faac_handle, faac_cfg);
310
311 faac_init_mp4(avctx);
312
313 if(!s->init && avctx->channels > 0)
314 channel_setup(avctx);
315
316 return 0;
317}
318
319#define AAC_CODEC(id, name, long_name_) \
320AVCodec name ## _decoder = { \
321 #name, \
322 CODEC_TYPE_AUDIO, \
323 id, \
324 sizeof(FAACContext), \
325 faac_decode_init, \
326 NULL, \
327 faac_decode_end, \
328 faac_decode_frame, \
329 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
330}
331
332// FIXME - raw AAC files - maybe just one entry will be enough
333AAC_CODEC(CODEC_ID_AAC, libfaad, "libfaad AAC (Advanced Audio Codec)");
334#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
335// If it's mp4 file - usually embeded into Qt Mov
336AAC_CODEC(CODEC_ID_MPEG4AAC, mpeg4aac, "libfaad AAC (Advanced Audio Codec)");
337#endif
338
339#undef AAC_CODEC
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