ape: adjust some printf format strings to correctly match argument types
[libav.git] / libavformat / ape.c
CommitLineData
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1/*
2 * Monkey's Audio APE demuxer
3 * Copyright (c) 2007 Benjamin Zores <ben@geexbox.org>
4 * based upon libdemac from Dave Chapman.
5 *
2912e87a 6 * This file is part of Libav.
bf4a1f17 7 *
2912e87a 8 * Libav is free software; you can redistribute it and/or
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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 *
2912e87a 13 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 19 * License along with Libav; if not, write to the Free Software
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20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23#include <stdio.h>
24
6a5d31ac 25#include "libavutil/intreadwrite.h"
bf4a1f17 26#include "avformat.h"
191e34cd 27#include "apetag.h"
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28
29/* The earliest and latest file formats supported by this library */
c1f3c630 30#define APE_MIN_VERSION 3950
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31#define APE_MAX_VERSION 3990
32
33#define MAC_FORMAT_FLAG_8_BIT 1 // is 8-bit [OBSOLETE]
34#define MAC_FORMAT_FLAG_CRC 2 // uses the new CRC32 error detection [OBSOLETE]
35#define MAC_FORMAT_FLAG_HAS_PEAK_LEVEL 4 // uint32 nPeakLevel after the header [OBSOLETE]
36#define MAC_FORMAT_FLAG_24_BIT 8 // is 24-bit [OBSOLETE]
37#define MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS 16 // has the number of seek elements after the peak level
38#define MAC_FORMAT_FLAG_CREATE_WAV_HEADER 32 // create the wave header on decompression (not stored)
39
40#define MAC_SUBFRAME_SIZE 4608
41
42#define APE_EXTRADATA_SIZE 6
43
44typedef struct {
45 int64_t pos;
46 int nblocks;
47 int size;
48 int skip;
49 int64_t pts;
50} APEFrame;
51
52typedef struct {
53 /* Derived fields */
54 uint32_t junklength;
55 uint32_t firstframe;
56 uint32_t totalsamples;
57 int currentframe;
58 APEFrame *frames;
59
60 /* Info from Descriptor Block */
61 char magic[4];
62 int16_t fileversion;
63 int16_t padding1;
64 uint32_t descriptorlength;
65 uint32_t headerlength;
66 uint32_t seektablelength;
67 uint32_t wavheaderlength;
68 uint32_t audiodatalength;
69 uint32_t audiodatalength_high;
70 uint32_t wavtaillength;
71 uint8_t md5[16];
72
73 /* Info from Header Block */
74 uint16_t compressiontype;
75 uint16_t formatflags;
76 uint32_t blocksperframe;
77 uint32_t finalframeblocks;
78 uint32_t totalframes;
79 uint16_t bps;
80 uint16_t channels;
81 uint32_t samplerate;
82
83 /* Seektable */
84 uint32_t *seektable;
85} APEContext;
86
87static int ape_probe(AVProbeData * p)
88{
89 if (p->buf[0] == 'M' && p->buf[1] == 'A' && p->buf[2] == 'C' && p->buf[3] == ' ')
90 return AVPROBE_SCORE_MAX;
91
92 return 0;
93}
94
76b9092f 95static void ape_dumpinfo(AVFormatContext * s, APEContext * ape_ctx)
bf4a1f17 96{
f190f676 97#ifdef DEBUG
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98 int i;
99
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100 av_log(s, AV_LOG_DEBUG, "Descriptor Block:\n\n");
101 av_log(s, AV_LOG_DEBUG, "magic = \"%c%c%c%c\"\n", ape_ctx->magic[0], ape_ctx->magic[1], ape_ctx->magic[2], ape_ctx->magic[3]);
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102 av_log(s, AV_LOG_DEBUG, "fileversion = %"PRId16"\n", ape_ctx->fileversion);
103 av_log(s, AV_LOG_DEBUG, "descriptorlength = %"PRIu32"\n", ape_ctx->descriptorlength);
104 av_log(s, AV_LOG_DEBUG, "headerlength = %"PRIu32"\n", ape_ctx->headerlength);
105 av_log(s, AV_LOG_DEBUG, "seektablelength = %"PRIu32"\n", ape_ctx->seektablelength);
106 av_log(s, AV_LOG_DEBUG, "wavheaderlength = %"PRIu32"\n", ape_ctx->wavheaderlength);
107 av_log(s, AV_LOG_DEBUG, "audiodatalength = %"PRIu32"\n", ape_ctx->audiodatalength);
108 av_log(s, AV_LOG_DEBUG, "audiodatalength_high = %"PRIu32"\n", ape_ctx->audiodatalength_high);
109 av_log(s, AV_LOG_DEBUG, "wavtaillength = %"PRIu32"\n", ape_ctx->wavtaillength);
76b9092f 110 av_log(s, AV_LOG_DEBUG, "md5 = ");
bf4a1f17 111 for (i = 0; i < 16; i++)
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112 av_log(s, AV_LOG_DEBUG, "%02x", ape_ctx->md5[i]);
113 av_log(s, AV_LOG_DEBUG, "\n");
bf4a1f17 114
76b9092f 115 av_log(s, AV_LOG_DEBUG, "\nHeader Block:\n\n");
bf4a1f17 116
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117 av_log(s, AV_LOG_DEBUG, "compressiontype = %"PRIu16"\n", ape_ctx->compressiontype);
118 av_log(s, AV_LOG_DEBUG, "formatflags = %"PRIu16"\n", ape_ctx->formatflags);
119 av_log(s, AV_LOG_DEBUG, "blocksperframe = %"PRIu32"\n", ape_ctx->blocksperframe);
120 av_log(s, AV_LOG_DEBUG, "finalframeblocks = %"PRIu32"\n", ape_ctx->finalframeblocks);
121 av_log(s, AV_LOG_DEBUG, "totalframes = %"PRIu32"\n", ape_ctx->totalframes);
122 av_log(s, AV_LOG_DEBUG, "bps = %"PRIu16"\n", ape_ctx->bps);
123 av_log(s, AV_LOG_DEBUG, "channels = %"PRIu16"\n", ape_ctx->channels);
124 av_log(s, AV_LOG_DEBUG, "samplerate = %"PRIu32"\n", ape_ctx->samplerate);
bf4a1f17 125
76b9092f 126 av_log(s, AV_LOG_DEBUG, "\nSeektable\n\n");
bf4a1f17 127 if ((ape_ctx->seektablelength / sizeof(uint32_t)) != ape_ctx->totalframes) {
76b9092f 128 av_log(s, AV_LOG_DEBUG, "No seektable\n");
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129 } else {
130 for (i = 0; i < ape_ctx->seektablelength / sizeof(uint32_t); i++) {
131 if (i < ape_ctx->totalframes - 1) {
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132 av_log(s, AV_LOG_DEBUG, "%8d %"PRIu32" (%"PRIu32" bytes)\n",
133 i, ape_ctx->seektable[i],
134 ape_ctx->seektable[i + 1] - ape_ctx->seektable[i]);
bf4a1f17 135 } else {
ab3d241b 136 av_log(s, AV_LOG_DEBUG, "%8d %"PRIu32"\n", i, ape_ctx->seektable[i]);
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137 }
138 }
139 }
140
76b9092f 141 av_log(s, AV_LOG_DEBUG, "\nFrames\n\n");
bf4a1f17 142 for (i = 0; i < ape_ctx->totalframes; i++)
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143 av_log(s, AV_LOG_DEBUG, "%8d %8"PRId64" %8d (%d samples)\n", i,
144 ape_ctx->frames[i].pos, ape_ctx->frames[i].size,
145 ape_ctx->frames[i].nblocks);
bf4a1f17 146
76b9092f 147 av_log(s, AV_LOG_DEBUG, "\nCalculated information:\n\n");
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148 av_log(s, AV_LOG_DEBUG, "junklength = %"PRIu32"\n", ape_ctx->junklength);
149 av_log(s, AV_LOG_DEBUG, "firstframe = %"PRIu32"\n", ape_ctx->firstframe);
150 av_log(s, AV_LOG_DEBUG, "totalsamples = %"PRIu32"\n", ape_ctx->totalsamples);
7f559eb1 151#endif
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152}
153
154static int ape_read_header(AVFormatContext * s, AVFormatParameters * ap)
155{
ae628ec1 156 AVIOContext *pb = s->pb;
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157 APEContext *ape = s->priv_data;
158 AVStream *st;
159 uint32_t tag;
160 int i;
161 int total_blocks;
162 int64_t pts;
163
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164 /* Skip any leading junk such as id3v2 tags */
165 ape->junklength = avio_tell(pb);
bf4a1f17 166
b7effd4e 167 tag = avio_rl32(pb);
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168 if (tag != MKTAG('M', 'A', 'C', ' '))
169 return -1;
170
b7effd4e 171 ape->fileversion = avio_rl16(pb);
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172
173 if (ape->fileversion < APE_MIN_VERSION || ape->fileversion > APE_MAX_VERSION) {
ab3d241b 174 av_log(s, AV_LOG_ERROR, "Unsupported file version - %d.%02d\n",
b0a4e5f9 175 ape->fileversion / 1000, (ape->fileversion % 1000) / 10);
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176 return -1;
177 }
178
179 if (ape->fileversion >= 3980) {
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180 ape->padding1 = avio_rl16(pb);
181 ape->descriptorlength = avio_rl32(pb);
182 ape->headerlength = avio_rl32(pb);
183 ape->seektablelength = avio_rl32(pb);
184 ape->wavheaderlength = avio_rl32(pb);
185 ape->audiodatalength = avio_rl32(pb);
186 ape->audiodatalength_high = avio_rl32(pb);
187 ape->wavtaillength = avio_rl32(pb);
188 avio_read(pb, ape->md5, 16);
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189
190 /* Skip any unknown bytes at the end of the descriptor.
191 This is for future compatibility */
192 if (ape->descriptorlength > 52)
45a8a02a 193 avio_skip(pb, ape->descriptorlength - 52);
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194
195 /* Read header data */
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196 ape->compressiontype = avio_rl16(pb);
197 ape->formatflags = avio_rl16(pb);
198 ape->blocksperframe = avio_rl32(pb);
199 ape->finalframeblocks = avio_rl32(pb);
200 ape->totalframes = avio_rl32(pb);
201 ape->bps = avio_rl16(pb);
202 ape->channels = avio_rl16(pb);
203 ape->samplerate = avio_rl32(pb);
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204 } else {
205 ape->descriptorlength = 0;
206 ape->headerlength = 32;
207
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208 ape->compressiontype = avio_rl16(pb);
209 ape->formatflags = avio_rl16(pb);
210 ape->channels = avio_rl16(pb);
211 ape->samplerate = avio_rl32(pb);
212 ape->wavheaderlength = avio_rl32(pb);
213 ape->wavtaillength = avio_rl32(pb);
214 ape->totalframes = avio_rl32(pb);
215 ape->finalframeblocks = avio_rl32(pb);
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216
217 if (ape->formatflags & MAC_FORMAT_FLAG_HAS_PEAK_LEVEL) {
45a8a02a 218 avio_skip(pb, 4); /* Skip the peak level */
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219 ape->headerlength += 4;
220 }
221
222 if (ape->formatflags & MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS) {
b7effd4e 223 ape->seektablelength = avio_rl32(pb);
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224 ape->headerlength += 4;
225 ape->seektablelength *= sizeof(int32_t);
226 } else
227 ape->seektablelength = ape->totalframes * sizeof(int32_t);
228
229 if (ape->formatflags & MAC_FORMAT_FLAG_8_BIT)
230 ape->bps = 8;
231 else if (ape->formatflags & MAC_FORMAT_FLAG_24_BIT)
232 ape->bps = 24;
233 else
234 ape->bps = 16;
235
236 if (ape->fileversion >= 3950)
237 ape->blocksperframe = 73728 * 4;
238 else if (ape->fileversion >= 3900 || (ape->fileversion >= 3800 && ape->compressiontype >= 4000))
239 ape->blocksperframe = 73728;
240 else
241 ape->blocksperframe = 9216;
242
243 /* Skip any stored wav header */
244 if (!(ape->formatflags & MAC_FORMAT_FLAG_CREATE_WAV_HEADER))
45a8a02a 245 avio_skip(pb, ape->wavheaderlength);
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246 }
247
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248 if(!ape->totalframes){
249 av_log(s, AV_LOG_ERROR, "No frames in the file!\n");
250 return AVERROR(EINVAL);
251 }
bf4a1f17 252 if(ape->totalframes > UINT_MAX / sizeof(APEFrame)){
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253 av_log(s, AV_LOG_ERROR, "Too many frames: %"PRIu32"\n",
254 ape->totalframes);
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255 return -1;
256 }
29a29043 257 if (ape->seektablelength && (ape->seektablelength / sizeof(*ape->seektable)) < ape->totalframes) {
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258 av_log(s, AV_LOG_ERROR,
259 "Number of seek entries is less than number of frames: %zu vs. %"PRIu32"\n",
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260 ape->seektablelength / sizeof(*ape->seektable), ape->totalframes);
261 return AVERROR_INVALIDDATA;
262 }
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263 ape->frames = av_malloc(ape->totalframes * sizeof(APEFrame));
264 if(!ape->frames)
2874c81c 265 return AVERROR(ENOMEM);
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266 ape->firstframe = ape->junklength + ape->descriptorlength + ape->headerlength + ape->seektablelength + ape->wavheaderlength;
267 ape->currentframe = 0;
268
269
270 ape->totalsamples = ape->finalframeblocks;
271 if (ape->totalframes > 1)
272 ape->totalsamples += ape->blocksperframe * (ape->totalframes - 1);
273
274 if (ape->seektablelength > 0) {
275 ape->seektable = av_malloc(ape->seektablelength);
276 for (i = 0; i < ape->seektablelength / sizeof(uint32_t); i++)
b7effd4e 277 ape->seektable[i] = avio_rl32(pb);
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278 }
279
280 ape->frames[0].pos = ape->firstframe;
281 ape->frames[0].nblocks = ape->blocksperframe;
282 ape->frames[0].skip = 0;
283 for (i = 1; i < ape->totalframes; i++) {
ab088f7d 284 ape->frames[i].pos = ape->seektable[i] + ape->junklength;
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285 ape->frames[i].nblocks = ape->blocksperframe;
286 ape->frames[i - 1].size = ape->frames[i].pos - ape->frames[i - 1].pos;
287 ape->frames[i].skip = (ape->frames[i].pos - ape->frames[0].pos) & 3;
288 }
289 ape->frames[ape->totalframes - 1].size = ape->finalframeblocks * 4;
290 ape->frames[ape->totalframes - 1].nblocks = ape->finalframeblocks;
291
292 for (i = 0; i < ape->totalframes; i++) {
293 if(ape->frames[i].skip){
294 ape->frames[i].pos -= ape->frames[i].skip;
295 ape->frames[i].size += ape->frames[i].skip;
296 }
297 ape->frames[i].size = (ape->frames[i].size + 3) & ~3;
298 }
299
300
76b9092f 301 ape_dumpinfo(s, ape);
bf4a1f17 302
781ad2f5 303 /* try to read APE tags */
8978feda 304 if (pb->seekable) {
191e34cd 305 ff_ape_parse_tag(s);
6b4aa5da 306 avio_seek(pb, 0, SEEK_SET);
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307 }
308
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309 av_log(s, AV_LOG_DEBUG, "Decoding file - v%d.%02d, compression level %"PRIu16"\n",
310 ape->fileversion / 1000, (ape->fileversion % 1000) / 10,
311 ape->compressiontype);
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312
313 /* now we are ready: build format streams */
314 st = av_new_stream(s, 0);
315 if (!st)
316 return -1;
317
318 total_blocks = (ape->totalframes == 0) ? 0 : ((ape->totalframes - 1) * ape->blocksperframe) + ape->finalframeblocks;
319
72415b2a 320 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
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321 st->codec->codec_id = CODEC_ID_APE;
322 st->codec->codec_tag = MKTAG('A', 'P', 'E', ' ');
323 st->codec->channels = ape->channels;
324 st->codec->sample_rate = ape->samplerate;
dd1c8f3e 325 st->codec->bits_per_coded_sample = ape->bps;
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326 st->codec->frame_size = MAC_SUBFRAME_SIZE;
327
328 st->nb_frames = ape->totalframes;
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329 st->start_time = 0;
330 st->duration = total_blocks / MAC_SUBFRAME_SIZE;
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331 av_set_pts_info(st, 64, MAC_SUBFRAME_SIZE, ape->samplerate);
332
333 st->codec->extradata = av_malloc(APE_EXTRADATA_SIZE);
334 st->codec->extradata_size = APE_EXTRADATA_SIZE;
335 AV_WL16(st->codec->extradata + 0, ape->fileversion);
336 AV_WL16(st->codec->extradata + 2, ape->compressiontype);
337 AV_WL16(st->codec->extradata + 4, ape->formatflags);
338
339 pts = 0;
340 for (i = 0; i < ape->totalframes; i++) {
341 ape->frames[i].pts = pts;
342 av_add_index_entry(st, ape->frames[i].pos, ape->frames[i].pts, 0, 0, AVINDEX_KEYFRAME);
343 pts += ape->blocksperframe / MAC_SUBFRAME_SIZE;
344 }
345
346 return 0;
347}
348
349static int ape_read_packet(AVFormatContext * s, AVPacket * pkt)
350{
351 int ret;
352 int nblocks;
353 APEContext *ape = s->priv_data;
354 uint32_t extra_size = 8;
355
66e5b1df 356 if (s->pb->eof_reached)
5ae092ee 357 return AVERROR(EIO);
bf4a1f17 358 if (ape->currentframe > ape->totalframes)
5ae092ee 359 return AVERROR(EIO);
bf4a1f17 360
6b4aa5da 361 avio_seek (s->pb, ape->frames[ape->currentframe].pos, SEEK_SET);
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362
363 /* Calculate how many blocks there are in this frame */
364 if (ape->currentframe == (ape->totalframes - 1))
365 nblocks = ape->finalframeblocks;
366 else
367 nblocks = ape->blocksperframe;
368
369 if (av_new_packet(pkt, ape->frames[ape->currentframe].size + extra_size) < 0)
2874c81c 370 return AVERROR(ENOMEM);
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371
372 AV_WL32(pkt->data , nblocks);
373 AV_WL32(pkt->data + 4, ape->frames[ape->currentframe].skip);
b7effd4e 374 ret = avio_read(s->pb, pkt->data + extra_size, ape->frames[ape->currentframe].size);
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375
376 pkt->pts = ape->frames[ape->currentframe].pts;
377 pkt->stream_index = 0;
378
379 /* note: we need to modify the packet size here to handle the last
380 packet */
381 pkt->size = ret + extra_size;
382
383 ape->currentframe++;
384
385 return 0;
386}
387
388static int ape_read_close(AVFormatContext * s)
389{
390 APEContext *ape = s->priv_data;
391
392 av_freep(&ape->frames);
393 av_freep(&ape->seektable);
394 return 0;
395}
396
397static int ape_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
398{
399 AVStream *st = s->streams[stream_index];
400 APEContext *ape = s->priv_data;
401 int index = av_index_search_timestamp(st, timestamp, flags);
402
403 if (index < 0)
404 return -1;
405
406 ape->currentframe = index;
407 return 0;
408}
409
c6610a21 410AVInputFormat ff_ape_demuxer = {
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411 .name = "ape",
412 .long_name = NULL_IF_CONFIG_SMALL("Monkey's Audio"),
413 .priv_data_size = sizeof(APEContext),
414 .read_probe = ape_probe,
415 .read_header = ape_read_header,
416 .read_packet = ape_read_packet,
417 .read_close = ape_read_close,
418 .read_seek = ape_read_seek,
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419 .extensions = "ape,apl,mac"
420};