1 /* Electronic Arts Multimedia File Demuxer
2 * Copyright (c) 2004 The ffmpeg Project
3 * Copyright (c) 2006-2008 Peter Ross
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * Electronic Arts Multimedia file demuxer (WVE/UV2/etc.)
25 * by Robin Kay (komadori at gekkou.co.uk)
28 #include "libavutil/intreadwrite.h"
32 #define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
33 #define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
34 #define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
35 #define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
36 #define SHEN_TAG MKTAG('S', 'H', 'E', 'N') /* SxEN header */
37 #define SDEN_TAG MKTAG('S', 'D', 'E', 'N') /* SxEN data */
38 #define SEEN_TAG MKTAG('S', 'E', 'E', 'N') /* SxEN end */
39 #define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
40 #define EACS_TAG MKTAG('E', 'A', 'C', 'S')
41 #define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
42 #define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
43 #define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
44 #define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
45 #define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
46 #define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
47 #define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV I-frame */
48 #define fVGT_TAG MKTAG('f', 'V', 'G', 'T') /* TGV P-frame */
49 #define mTCD_TAG MKTAG('m', 'T', 'C', 'D') /* MDEC */
50 #define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD I-frame */
51 #define MADm_TAG MKTAG('M', 'A', 'D', 'm') /* MAD P-frame */
52 #define MADe_TAG MKTAG('M', 'A', 'D', 'e') /* MAD lqp-frame */
53 #define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG-2 */
54 #define TGQs_TAG MKTAG('T', 'G', 'Q', 's') /* TGQ I-frame (appears in .TGQ files) */
55 #define pQGT_TAG MKTAG('p', 'Q', 'G', 'T') /* TGQ I-frame (appears in .UV files) */
56 #define pIQT_TAG MKTAG('p', 'I', 'Q', 'T') /* TQI/UV2 I-frame (.UV2/.WVE) */
57 #define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
58 #define MV0K_TAG MKTAG('M', 'V', '0', 'K')
59 #define MV0F_TAG MKTAG('M', 'V', '0', 'F')
60 #define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
61 #define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV I-frame */
63 typedef struct EaDemuxContext {
66 enum AVCodecID video_codec;
70 int video_stream_index;
72 enum AVCodecID audio_codec;
73 int audio_stream_index;
81 static uint32_t read_arbitrary(AVIOContext *pb)
90 for (i = 0; i < size; i++) {
99 static int process_audio_header_elements(AVFormatContext *s)
101 EaDemuxContext *ea = s->priv_data;
102 AVIOContext *pb = s->pb;
104 int compression_type = -1, revision = -1, revision2 = -1;
107 ea->sample_rate = -1;
108 ea->num_channels = 1;
110 while (!url_feof(pb) && in_header) {
117 av_log(s, AV_LOG_DEBUG, "entered audio subheader\n");
119 while (!url_feof(pb) && in_subheader) {
121 subbyte = avio_r8(pb);
125 revision = read_arbitrary(pb);
126 av_log(s, AV_LOG_DEBUG,
127 "revision (element 0x80) set to 0x%08x\n", revision);
130 ea->num_channels = read_arbitrary(pb);
131 av_log(s, AV_LOG_DEBUG,
132 "num_channels (element 0x82) set to 0x%08x\n",
136 compression_type = read_arbitrary(pb);
137 av_log(s, AV_LOG_DEBUG,
138 "compression_type (element 0x83) set to 0x%08x\n",
142 ea->sample_rate = read_arbitrary(pb);
143 av_log(s, AV_LOG_DEBUG,
144 "sample_rate (element 0x84) set to %i\n",
148 ea->num_samples = read_arbitrary(pb);
149 av_log(s, AV_LOG_DEBUG,
150 "num_samples (element 0x85) set to 0x%08x\n",
154 av_log(s, AV_LOG_DEBUG,
155 "element 0x%02x set to 0x%08x\n",
156 subbyte, read_arbitrary(pb));
157 av_log(s, AV_LOG_DEBUG, "exited audio subheader\n");
161 revision2 = read_arbitrary(pb);
162 av_log(s, AV_LOG_DEBUG,
163 "revision2 (element 0xA0) set to 0x%08x\n",
167 av_log(s, AV_LOG_DEBUG,
168 "end of header block reached (within audio subheader)\n");
173 av_log(s, AV_LOG_DEBUG,
174 "element 0x%02x set to 0x%08x\n",
175 subbyte, read_arbitrary(pb));
181 av_log(s, AV_LOG_DEBUG, "end of header block reached\n");
185 av_log(s, AV_LOG_DEBUG,
186 "header element 0x%02x set to 0x%08x\n",
187 byte, read_arbitrary(pb));
192 switch (compression_type) {
194 ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
197 ea->audio_codec = AV_CODEC_ID_ADPCM_EA;
202 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1;
205 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2;
208 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R3;
213 avpriv_request_sample(s, "stream type; revision=%i", revision);
218 ea->audio_codec = AV_CODEC_ID_PCM_S16LE_PLANAR;
223 case 2: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1; break;
224 case 3: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2; break;
226 avpriv_request_sample(s, "stream type; revision=%i, revision2=%i", revision, revision2);
231 ea->audio_codec = AV_CODEC_ID_MP3;
236 ea->audio_codec = AV_CODEC_ID_NONE;
237 avpriv_request_sample(s, "stream type; revision2=%i", revision2);
242 avpriv_request_sample(s,
243 "stream type; compression_type=%i",
248 if (ea->sample_rate == -1)
249 ea->sample_rate = revision == 3 ? 48000 : 22050;
254 static void process_audio_header_eacs(AVFormatContext *s)
256 EaDemuxContext *ea = s->priv_data;
257 AVIOContext *pb = s->pb;
258 int compression_type;
260 ea->sample_rate = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
261 ea->bytes = avio_r8(pb); /* 1=8-bit, 2=16-bit */
262 ea->num_channels = avio_r8(pb);
263 compression_type = avio_r8(pb);
266 switch (compression_type) {
270 ea->audio_codec = AV_CODEC_ID_PCM_S8;
273 ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
278 ea->audio_codec = AV_CODEC_ID_PCM_MULAW;
282 ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_EACS;
285 avpriv_request_sample(s,
286 "stream type; audio compression_type=%i",
291 static void process_audio_header_sead(AVFormatContext *s)
293 EaDemuxContext *ea = s->priv_data;
294 AVIOContext *pb = s->pb;
296 ea->sample_rate = avio_rl32(pb);
297 ea->bytes = avio_rl32(pb); /* 1=8-bit, 2=16-bit */
298 ea->num_channels = avio_rl32(pb);
299 ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_SEAD;
302 static void process_video_header_mdec(AVFormatContext *s)
304 EaDemuxContext *ea = s->priv_data;
305 AVIOContext *pb = s->pb;
307 ea->width = avio_rl16(pb);
308 ea->height = avio_rl16(pb);
309 ea->time_base = (AVRational) { 1, 15 };
310 ea->video_codec = AV_CODEC_ID_MDEC;
313 static int process_video_header_vp6(AVFormatContext *s)
315 EaDemuxContext *ea = s->priv_data;
316 AVIOContext *pb = s->pb;
319 ea->nb_frames = avio_rl32(pb);
321 ea->time_base.den = avio_rl32(pb);
322 ea->time_base.num = avio_rl32(pb);
323 if (ea->time_base.den <= 0 || ea->time_base.num <= 0) {
324 av_log(s, AV_LOG_ERROR, "Timebase is invalid\n");
325 return AVERROR_INVALIDDATA;
327 ea->video_codec = AV_CODEC_ID_VP6;
332 static void process_video_header_cmv(AVFormatContext *s)
334 EaDemuxContext *ea = s->priv_data;
337 avio_skip(s->pb, 10);
338 fps = avio_rl16(s->pb);
340 ea->time_base = (AVRational) { 1, fps };
341 ea->video_codec = AV_CODEC_ID_CMV;
344 /* Process EA file header.
345 * Return 1 if the EA file is valid and successfully opened, 0 otherwise. */
346 static int process_ea_header(AVFormatContext *s)
348 uint32_t blockid, size = 0;
349 EaDemuxContext *ea = s->priv_data;
350 AVIOContext *pb = s->pb;
353 for (i = 0; i < 5 && (!ea->audio_codec || !ea->video_codec); i++) {
354 uint64_t startpos = avio_tell(pb);
357 blockid = avio_rl32(pb);
358 size = avio_rl32(pb);
360 ea->big_endian = size > av_bswap32(size);
362 size = av_bswap32(size);
365 av_log(s, AV_LOG_ERROR, "chunk size too small\n");
366 return AVERROR_INVALIDDATA;
371 if (avio_rl32(pb) != EACS_TAG) {
372 avpriv_request_sample(s, "unknown 1SNh headerid");
375 process_audio_header_eacs(s);
380 blockid = avio_rl32(pb);
381 if (blockid == GSTR_TAG) {
383 } else if ((blockid & 0xFFFF) != PT00_TAG) {
384 avpriv_request_sample(s, "unknown SCHl headerid");
387 err = process_audio_header_elements(s);
391 process_audio_header_sead(s);
395 process_video_header_cmv(s);
399 ea->video_codec = AV_CODEC_ID_TGV;
403 process_video_header_mdec(s);
407 ea->video_codec = AV_CODEC_ID_MPEG2VIDEO;
412 ea->video_codec = AV_CODEC_ID_TGQ;
416 ea->video_codec = AV_CODEC_ID_TQI;
420 ea->video_codec = AV_CODEC_ID_MAD;
424 err = process_video_header_vp6(s);
429 av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
433 avio_seek(pb, startpos + size, SEEK_SET);
436 avio_seek(pb, 0, SEEK_SET);
441 static int ea_probe(AVProbeData *p)
443 unsigned big_endian, size;
445 switch (AV_RL32(&p->buf[0])) {
459 size = AV_RL32(&p->buf[4]);
460 big_endian = size > 0x000FFFFF;
462 size = av_bswap32(size);
463 if (size > 0xfffff || size < 8)
466 return AVPROBE_SCORE_MAX;
469 static int ea_read_header(AVFormatContext *s)
471 EaDemuxContext *ea = s->priv_data;
474 if (process_ea_header(s)<=0)
477 if (ea->video_codec) {
478 /* initialize the video decoder stream */
479 st = avformat_new_stream(s, NULL);
481 return AVERROR(ENOMEM);
482 ea->video_stream_index = st->index;
483 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
484 st->codec->codec_id = ea->video_codec;
485 // parsing is necessary to make FFmpeg generate correct timestamps
486 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO)
487 st->need_parsing = AVSTREAM_PARSE_HEADERS;
488 st->codec->codec_tag = 0; /* no fourcc */
489 st->codec->width = ea->width;
490 st->codec->height = ea->height;
491 st->duration = st->nb_frames = ea->nb_frames;
492 if (ea->time_base.num)
493 avpriv_set_pts_info(st, 64, ea->time_base.num, ea->time_base.den);
495 st->avg_frame_rate = av_inv_q(ea->time_base);
498 if (ea->audio_codec) {
499 if (ea->num_channels <= 0 || ea->num_channels > 2) {
500 av_log(s, AV_LOG_WARNING,
501 "Unsupported number of channels: %d\n", ea->num_channels);
505 if (ea->sample_rate <= 0) {
506 av_log(s, AV_LOG_ERROR,
507 "Unsupported sample rate: %d\n", ea->sample_rate);
511 if (ea->bytes <= 0) {
512 av_log(s, AV_LOG_ERROR,
513 "Invalid number of bytes per sample: %d\n", ea->bytes);
514 ea->audio_codec = AV_CODEC_ID_NONE;
518 /* initialize the audio decoder stream */
519 st = avformat_new_stream(s, NULL);
521 return AVERROR(ENOMEM);
522 avpriv_set_pts_info(st, 33, 1, ea->sample_rate);
523 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
524 st->codec->codec_id = ea->audio_codec;
525 st->codec->codec_tag = 0; /* no tag */
526 st->codec->channels = ea->num_channels;
527 st->codec->sample_rate = ea->sample_rate;
528 st->codec->bits_per_coded_sample = ea->bytes * 8;
529 st->codec->bit_rate = st->codec->channels *
530 st->codec->sample_rate *
531 st->codec->bits_per_coded_sample / 4;
532 st->codec->block_align = st->codec->channels *
533 st->codec->bits_per_coded_sample;
534 ea->audio_stream_index = st->index;
541 static int ea_read_packet(AVFormatContext *s, AVPacket *pkt)
543 EaDemuxContext *ea = s->priv_data;
544 AVIOContext *pb = s->pb;
545 int partial_packet = 0;
546 unsigned int chunk_type, chunk_size;
547 int ret = 0, packet_read = 0, key = 0;
548 int av_uninit(num_samples);
550 while (!packet_read || partial_packet) {
551 chunk_type = avio_rl32(pb);
552 chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
554 return AVERROR_INVALIDDATA;
557 switch (chunk_type) {
560 /* header chunk also contains data; skip over the header portion */
562 return AVERROR_INVALIDDATA;
569 if (!ea->audio_codec) {
570 avio_skip(pb, chunk_size);
572 } else if (ea->audio_codec == AV_CODEC_ID_PCM_S16LE_PLANAR ||
573 ea->audio_codec == AV_CODEC_ID_MP3) {
574 num_samples = avio_rl32(pb);
578 if (partial_packet) {
579 avpriv_request_sample(s, "video header followed by audio packet");
583 ret = av_get_packet(pb, pkt, chunk_size);
586 pkt->stream_index = ea->audio_stream_index;
588 switch (ea->audio_codec) {
589 case AV_CODEC_ID_ADPCM_EA:
590 case AV_CODEC_ID_ADPCM_EA_R1:
591 case AV_CODEC_ID_ADPCM_EA_R2:
592 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
593 case AV_CODEC_ID_ADPCM_EA_R3:
595 av_log(s, AV_LOG_ERROR, "Packet is too short\n");
597 return AVERROR_INVALIDDATA;
599 if (ea->audio_codec == AV_CODEC_ID_ADPCM_EA_R3)
600 pkt->duration = AV_RB32(pkt->data);
602 pkt->duration = AV_RL32(pkt->data);
604 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
605 pkt->duration = ret * 2 / ea->num_channels;
607 case AV_CODEC_ID_PCM_S16LE_PLANAR:
608 case AV_CODEC_ID_MP3:
609 pkt->duration = num_samples;
612 pkt->duration = chunk_size / (ea->bytes * ea->num_channels);
633 key = AV_PKT_FLAG_KEY;
638 avio_seek(pb, -8, SEEK_CUR); // include chunk preamble
640 goto get_video_packet;
643 avio_skip(pb, 8); // skip ea DCT header
645 goto get_video_packet;
650 key = AV_PKT_FLAG_KEY;
653 if (partial_packet) {
654 ret = av_append_packet(pb, pkt, chunk_size);
656 ret = av_get_packet(pb, pkt, chunk_size);
661 partial_packet = chunk_type == MVIh_TAG;
662 pkt->stream_index = ea->video_stream_index;
668 avio_skip(pb, chunk_size);
673 if (ret < 0 && partial_packet)
678 AVInputFormat ff_ea_demuxer = {
680 .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia"),
681 .priv_data_size = sizeof(EaDemuxContext),
682 .read_probe = ea_probe,
683 .read_header = ea_read_header,
684 .read_packet = ea_read_packet,