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)
30 #include "libavutil/intreadwrite.h"
34 #define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
35 #define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
36 #define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
37 #define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
38 #define SHEN_TAG MKTAG('S', 'H', 'E', 'N') /* SxEN header */
39 #define SDEN_TAG MKTAG('S', 'D', 'E', 'N') /* SxEN data */
40 #define SEEN_TAG MKTAG('S', 'E', 'E', 'N') /* SxEN end */
41 #define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
42 #define EACS_TAG MKTAG('E', 'A', 'C', 'S')
43 #define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
44 #define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
45 #define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
46 #define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
47 #define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
48 #define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
49 #define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV I-frame */
50 #define fVGT_TAG MKTAG('f', 'V', 'G', 'T') /* TGV P-frame */
51 #define mTCD_TAG MKTAG('m', 'T', 'C', 'D') /* MDEC */
52 #define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD I-frame */
53 #define MADm_TAG MKTAG('M', 'A', 'D', 'm') /* MAD P-frame */
54 #define MADe_TAG MKTAG('M', 'A', 'D', 'e') /* MAD lqp-frame */
55 #define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG-2 */
56 #define TGQs_TAG MKTAG('T', 'G', 'Q', 's') /* TGQ I-frame (appears in .TGQ files) */
57 #define pQGT_TAG MKTAG('p', 'Q', 'G', 'T') /* TGQ I-frame (appears in .UV files) */
58 #define pIQT_TAG MKTAG('p', 'I', 'Q', 'T') /* TQI/UV2 I-frame (.UV2/.WVE) */
59 #define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
60 #define MV0K_TAG MKTAG('M', 'V', '0', 'K')
61 #define MV0F_TAG MKTAG('M', 'V', '0', 'F')
62 #define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
63 #define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV I-frame */
65 typedef struct EaDemuxContext {
68 enum AVCodecID video_codec;
72 int video_stream_index;
74 enum AVCodecID audio_codec;
75 int audio_stream_index;
83 static uint32_t read_arbitrary(AVIOContext *pb)
92 for (i = 0; i < size; i++) {
101 static int process_audio_header_elements(AVFormatContext *s)
103 EaDemuxContext *ea = s->priv_data;
104 AVIOContext *pb = s->pb;
106 int compression_type = -1, revision = -1, revision2 = -1;
109 ea->sample_rate = -1;
110 ea->num_channels = 1;
112 while (!avio_feof(pb) && in_header) {
119 av_log(s, AV_LOG_DEBUG, "entered audio subheader\n");
121 while (!avio_feof(pb) && in_subheader) {
123 subbyte = avio_r8(pb);
127 revision = read_arbitrary(pb);
128 av_log(s, AV_LOG_DEBUG,
129 "revision (element 0x80) set to 0x%08x\n", revision);
132 ea->num_channels = read_arbitrary(pb);
133 av_log(s, AV_LOG_DEBUG,
134 "num_channels (element 0x82) set to 0x%08x\n",
138 compression_type = read_arbitrary(pb);
139 av_log(s, AV_LOG_DEBUG,
140 "compression_type (element 0x83) set to 0x%08x\n",
144 ea->sample_rate = read_arbitrary(pb);
145 av_log(s, AV_LOG_DEBUG,
146 "sample_rate (element 0x84) set to %i\n",
150 ea->num_samples = read_arbitrary(pb);
151 av_log(s, AV_LOG_DEBUG,
152 "num_samples (element 0x85) set to 0x%08x\n",
156 av_log(s, AV_LOG_DEBUG,
157 "element 0x%02x set to 0x%08"PRIx32"\n",
158 subbyte, read_arbitrary(pb));
159 av_log(s, AV_LOG_DEBUG, "exited audio subheader\n");
163 revision2 = read_arbitrary(pb);
164 av_log(s, AV_LOG_DEBUG,
165 "revision2 (element 0xA0) set to 0x%08x\n",
169 av_log(s, AV_LOG_DEBUG,
170 "end of header block reached (within audio subheader)\n");
175 av_log(s, AV_LOG_DEBUG,
176 "element 0x%02x set to 0x%08"PRIx32"\n",
177 subbyte, read_arbitrary(pb));
183 av_log(s, AV_LOG_DEBUG, "end of header block reached\n");
187 av_log(s, AV_LOG_DEBUG,
188 "header element 0x%02x set to 0x%08"PRIx32"\n",
189 byte, read_arbitrary(pb));
194 switch (compression_type) {
196 ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
199 ea->audio_codec = AV_CODEC_ID_ADPCM_EA;
204 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1;
207 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2;
210 ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R3;
215 avpriv_request_sample(s, "stream type; revision=%i", revision);
220 ea->audio_codec = AV_CODEC_ID_PCM_S16LE_PLANAR;
225 case 2: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1; break;
226 case 3: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2; break;
228 avpriv_request_sample(s, "stream type; revision=%i, revision2=%i", revision, revision2);
233 ea->audio_codec = AV_CODEC_ID_MP3;
238 ea->audio_codec = AV_CODEC_ID_NONE;
239 avpriv_request_sample(s, "stream type; revision2=%i", revision2);
244 avpriv_request_sample(s,
245 "stream type; compression_type=%i",
250 if (ea->sample_rate == -1)
251 ea->sample_rate = revision == 3 ? 48000 : 22050;
256 static void process_audio_header_eacs(AVFormatContext *s)
258 EaDemuxContext *ea = s->priv_data;
259 AVIOContext *pb = s->pb;
260 int compression_type;
262 ea->sample_rate = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
263 ea->bytes = avio_r8(pb); /* 1=8-bit, 2=16-bit */
264 ea->num_channels = avio_r8(pb);
265 compression_type = avio_r8(pb);
268 switch (compression_type) {
272 ea->audio_codec = AV_CODEC_ID_PCM_S8;
275 ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
280 ea->audio_codec = AV_CODEC_ID_PCM_MULAW;
284 ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_EACS;
287 avpriv_request_sample(s,
288 "stream type; audio compression_type=%i",
293 static void process_audio_header_sead(AVFormatContext *s)
295 EaDemuxContext *ea = s->priv_data;
296 AVIOContext *pb = s->pb;
298 ea->sample_rate = avio_rl32(pb);
299 ea->bytes = avio_rl32(pb); /* 1=8-bit, 2=16-bit */
300 ea->num_channels = avio_rl32(pb);
301 ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_SEAD;
304 static void process_video_header_mdec(AVFormatContext *s)
306 EaDemuxContext *ea = s->priv_data;
307 AVIOContext *pb = s->pb;
309 ea->width = avio_rl16(pb);
310 ea->height = avio_rl16(pb);
311 ea->time_base = (AVRational) { 1, 15 };
312 ea->video_codec = AV_CODEC_ID_MDEC;
315 static int process_video_header_vp6(AVFormatContext *s)
317 EaDemuxContext *ea = s->priv_data;
318 AVIOContext *pb = s->pb;
321 ea->nb_frames = avio_rl32(pb);
323 ea->time_base.den = avio_rl32(pb);
324 ea->time_base.num = avio_rl32(pb);
325 if (ea->time_base.den <= 0 || ea->time_base.num <= 0) {
326 av_log(s, AV_LOG_ERROR, "Timebase is invalid\n");
327 return AVERROR_INVALIDDATA;
329 ea->video_codec = AV_CODEC_ID_VP6;
334 static void process_video_header_cmv(AVFormatContext *s)
336 EaDemuxContext *ea = s->priv_data;
339 avio_skip(s->pb, 10);
340 fps = avio_rl16(s->pb);
342 ea->time_base = (AVRational) { 1, fps };
343 ea->video_codec = AV_CODEC_ID_CMV;
346 /* Process EA file header.
347 * Return 1 if the EA file is valid and successfully opened, 0 otherwise. */
348 static int process_ea_header(AVFormatContext *s)
350 uint32_t blockid, size = 0;
351 EaDemuxContext *ea = s->priv_data;
352 AVIOContext *pb = s->pb;
355 for (i = 0; i < 5 && (!ea->audio_codec || !ea->video_codec); i++) {
356 uint64_t startpos = avio_tell(pb);
359 blockid = avio_rl32(pb);
360 size = avio_rl32(pb);
362 ea->big_endian = size > av_bswap32(size);
364 size = av_bswap32(size);
367 av_log(s, AV_LOG_ERROR, "chunk size too small\n");
368 return AVERROR_INVALIDDATA;
373 if (avio_rl32(pb) != EACS_TAG) {
374 avpriv_request_sample(s, "unknown 1SNh headerid");
377 process_audio_header_eacs(s);
382 blockid = avio_rl32(pb);
383 if (blockid == GSTR_TAG) {
385 } else if ((blockid & 0xFFFF) != PT00_TAG) {
386 avpriv_request_sample(s, "unknown SCHl headerid");
389 err = process_audio_header_elements(s);
393 process_audio_header_sead(s);
397 process_video_header_cmv(s);
401 ea->video_codec = AV_CODEC_ID_TGV;
405 process_video_header_mdec(s);
409 ea->video_codec = AV_CODEC_ID_MPEG2VIDEO;
414 ea->video_codec = AV_CODEC_ID_TGQ;
415 ea->time_base = (AVRational) { 1, 15 };
419 ea->video_codec = AV_CODEC_ID_TQI;
420 ea->time_base = (AVRational) { 1, 15 };
424 ea->video_codec = AV_CODEC_ID_MAD;
426 ea->time_base = (AVRational) { avio_rl16(pb), 1000 };
430 err = process_video_header_vp6(s);
435 av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
439 avio_seek(pb, startpos + size, SEEK_SET);
442 avio_seek(pb, 0, SEEK_SET);
447 static int ea_probe(AVProbeData *p)
449 unsigned big_endian, size;
451 switch (AV_RL32(&p->buf[0])) {
465 size = AV_RL32(&p->buf[4]);
466 big_endian = size > 0x000FFFFF;
468 size = av_bswap32(size);
469 if (size > 0xfffff || size < 8)
472 return AVPROBE_SCORE_MAX;
475 static int ea_read_header(AVFormatContext *s)
477 EaDemuxContext *ea = s->priv_data;
480 if (process_ea_header(s)<=0)
483 if (ea->video_codec) {
484 /* initialize the video decoder stream */
485 st = avformat_new_stream(s, NULL);
487 return AVERROR(ENOMEM);
488 ea->video_stream_index = st->index;
489 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
490 st->codec->codec_id = ea->video_codec;
491 // parsing is necessary to make FFmpeg generate correct timestamps
492 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO)
493 st->need_parsing = AVSTREAM_PARSE_HEADERS;
494 st->codec->codec_tag = 0; /* no fourcc */
495 st->codec->width = ea->width;
496 st->codec->height = ea->height;
497 st->duration = st->nb_frames = ea->nb_frames;
498 if (ea->time_base.num)
499 avpriv_set_pts_info(st, 64, ea->time_base.num, ea->time_base.den);
501 st->avg_frame_rate = av_inv_q(ea->time_base);
504 if (ea->audio_codec) {
505 if (ea->num_channels <= 0 || ea->num_channels > 2) {
506 av_log(s, AV_LOG_WARNING,
507 "Unsupported number of channels: %d\n", ea->num_channels);
511 if (ea->sample_rate <= 0) {
512 av_log(s, AV_LOG_ERROR,
513 "Unsupported sample rate: %d\n", ea->sample_rate);
517 if (ea->bytes <= 0) {
518 av_log(s, AV_LOG_ERROR,
519 "Invalid number of bytes per sample: %d\n", ea->bytes);
520 ea->audio_codec = AV_CODEC_ID_NONE;
524 /* initialize the audio decoder stream */
525 st = avformat_new_stream(s, NULL);
527 return AVERROR(ENOMEM);
528 avpriv_set_pts_info(st, 33, 1, ea->sample_rate);
529 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
530 st->codec->codec_id = ea->audio_codec;
531 st->codec->codec_tag = 0; /* no tag */
532 st->codec->channels = ea->num_channels;
533 st->codec->sample_rate = ea->sample_rate;
534 st->codec->bits_per_coded_sample = ea->bytes * 8;
535 st->codec->bit_rate = st->codec->channels *
536 st->codec->sample_rate *
537 st->codec->bits_per_coded_sample / 4;
538 st->codec->block_align = st->codec->channels *
539 st->codec->bits_per_coded_sample;
540 ea->audio_stream_index = st->index;
547 static int ea_read_packet(AVFormatContext *s, AVPacket *pkt)
549 EaDemuxContext *ea = s->priv_data;
550 AVIOContext *pb = s->pb;
551 int partial_packet = 0;
552 unsigned int chunk_type, chunk_size;
553 int ret = 0, packet_read = 0, key = 0;
554 int av_uninit(num_samples);
556 while (!packet_read || partial_packet) {
557 chunk_type = avio_rl32(pb);
558 chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
560 return AVERROR_INVALIDDATA;
563 switch (chunk_type) {
566 /* header chunk also contains data; skip over the header portion */
568 return AVERROR_INVALIDDATA;
575 if (!ea->audio_codec) {
576 avio_skip(pb, chunk_size);
578 } else if (ea->audio_codec == AV_CODEC_ID_PCM_S16LE_PLANAR ||
579 ea->audio_codec == AV_CODEC_ID_MP3) {
580 num_samples = avio_rl32(pb);
585 if (partial_packet) {
586 avpriv_request_sample(s, "video header followed by audio packet");
594 ret = av_get_packet(pb, pkt, chunk_size);
597 pkt->stream_index = ea->audio_stream_index;
599 switch (ea->audio_codec) {
600 case AV_CODEC_ID_ADPCM_EA:
601 case AV_CODEC_ID_ADPCM_EA_R1:
602 case AV_CODEC_ID_ADPCM_EA_R2:
603 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
604 case AV_CODEC_ID_ADPCM_EA_R3:
606 av_log(s, AV_LOG_ERROR, "Packet is too short\n");
608 return AVERROR_INVALIDDATA;
610 if (ea->audio_codec == AV_CODEC_ID_ADPCM_EA_R3)
611 pkt->duration = AV_RB32(pkt->data);
613 pkt->duration = AV_RL32(pkt->data);
615 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
616 pkt->duration = ret * 2 / ea->num_channels;
618 case AV_CODEC_ID_PCM_S16LE_PLANAR:
619 case AV_CODEC_ID_MP3:
620 pkt->duration = num_samples;
623 pkt->duration = chunk_size / (ea->bytes * ea->num_channels);
644 key = AV_PKT_FLAG_KEY;
649 avio_seek(pb, -8, SEEK_CUR); // include chunk preamble
651 goto get_video_packet;
655 return AVERROR_INVALIDDATA;
657 avio_skip(pb, 8); // skip ea DCT header
659 goto get_video_packet;
664 key = AV_PKT_FLAG_KEY;
670 if (partial_packet) {
671 ret = av_append_packet(pb, pkt, chunk_size);
673 ret = av_get_packet(pb, pkt, chunk_size);
678 partial_packet = chunk_type == MVIh_TAG;
679 pkt->stream_index = ea->video_stream_index;
685 avio_skip(pb, chunk_size);
690 if (ret < 0 && partial_packet)
695 AVInputFormat ff_ea_demuxer = {
697 .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia"),
698 .priv_data_size = sizeof(EaDemuxContext),
699 .read_probe = ea_probe,
700 .read_header = ea_read_header,
701 .read_packet = ea_read_packet,