/* Electronic Arts Multimedia File Demuxer
* Copyright (c) 2004 The ffmpeg Project
+ * Copyright (c) 2006-2008 Peter Ross
*
* This file is part of FFmpeg.
*
*/
/**
- * @file electronicarts.c
+ * @file libavformat/electronicarts.c
* Electronic Arts Multimedia file demuxer (WVE/UV2/etc.)
* by Robin Kay (komadori at gekkou.co.uk)
*/
+#include "libavutil/intreadwrite.h"
#include "avformat.h"
#define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
+#define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
+#define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
+#define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
+#define SHEN_TAG MKTAG('S', 'H', 'E', 'N') /* SxEN header */
+#define SDEN_TAG MKTAG('S', 'D', 'E', 'N') /* SxEN data */
+#define SEEN_TAG MKTAG('S', 'E', 'E', 'N') /* SxEN end */
+#define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
+#define EACS_TAG MKTAG('E', 'A', 'C', 'S')
+#define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
+#define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
#define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
+#define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
#define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
-#define pIQT_TAG MKTAG('p', 'I', 'Q', 'T')
#define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
-#define _TAG MKTAG('', '', '', '')
-
-#define EA_SAMPLE_RATE 22050
-#define EA_BITS_PER_SAMPLE 16
-#define EA_PREAMBLE_SIZE 8
+#define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV i-frame */
+#define fVGT_TAG MKTAG('f', 'V', 'G', 'T') /* TGV p-frame */
+#define mTCD_TAG MKTAG('m', 'T', 'C', 'D') /* MDEC */
+#define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD i-frame */
+#define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG2 */
+#define TGQs_TAG MKTAG('T', 'G', 'Q', 's') /* TGQ i-frame (appears in .TGQ files) */
+#define pQGT_TAG MKTAG('p', 'Q', 'G', 'T') /* TGQ i-frame (appears in .UV files) */
+#define pIQT_TAG MKTAG('p', 'I', 'Q', 'T') /* TQI/UV2 i-frame (.UV2/.WVE) */
+#define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
+#define MV0K_TAG MKTAG('M', 'V', '0', 'K')
+#define MV0F_TAG MKTAG('M', 'V', '0', 'F')
+#define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
+#define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV i-frame */
typedef struct EaDemuxContext {
- int width;
- int height;
+ int big_endian;
+
+ enum CodecID video_codec;
+ AVRational time_base;
+ int width, height;
int video_stream_index;
- int track_count;
+ enum CodecID audio_codec;
int audio_stream_index;
int audio_frame_counter;
- int64_t audio_pts;
- int64_t video_pts;
- int video_pts_inc;
- float fps;
-
+ int bytes;
+ int sample_rate;
int num_channels;
int num_samples;
- int compression_type;
} EaDemuxContext;
static uint32_t read_arbitary(ByteIOContext *pb) {
}
/*
- * Process WVE file header
- * Returns 1 if the WVE file is valid and successfully opened, 0 otherwise
+ * Process PT/GSTR sound header
+ * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
*/
-static int process_ea_header(AVFormatContext *s) {
- int inHeader;
- uint32_t blockid, size;
- EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
- ByteIOContext *pb = &s->pb;
-
- if (get_buffer(pb, (void*)&blockid, 4) != 4) {
- return 0;
- }
- if (le2me_32(blockid) != SCHl_TAG) {
- return 0;
- }
-
- if (get_buffer(pb, (void*)&size, 4) != 4) {
- return 0;
- }
- size = le2me_32(size);
+static int process_audio_header_elements(AVFormatContext *s)
+{
+ int inHeader = 1;
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
+ int compression_type = -1, revision = -1, revision2 = -1;
- if (get_buffer(pb, (void*)&blockid, 4) != 4) {
- return 0;
- }
- if (le2me_32(blockid) != PT00_TAG) {
- av_log (s, AV_LOG_ERROR, "PT header missing\n");
- return 0;
- }
+ ea->bytes = 2;
+ ea->sample_rate = -1;
+ ea->num_channels = 1;
- inHeader = 1;
while (inHeader) {
int inSubheader;
uint8_t byte;
- byte = get_byte(pb) & 0xFF;
+ byte = get_byte(pb);
switch (byte) {
case 0xFD:
- av_log (s, AV_LOG_INFO, "entered audio subheader\n");
+ av_log (s, AV_LOG_DEBUG, "entered audio subheader\n");
inSubheader = 1;
while (inSubheader) {
uint8_t subbyte;
- subbyte = get_byte(pb) & 0xFF;
+ subbyte = get_byte(pb);
switch (subbyte) {
+ case 0x80:
+ revision = read_arbitary(pb);
+ av_log (s, AV_LOG_DEBUG, "revision (element 0x80) set to 0x%08x\n", revision);
+ break;
case 0x82:
ea->num_channels = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels);
+ av_log (s, AV_LOG_DEBUG, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels);
break;
case 0x83:
- ea->compression_type = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "compression_type (element 0x83) set to 0x%08x\n", ea->compression_type);
+ compression_type = read_arbitary(pb);
+ av_log (s, AV_LOG_DEBUG, "compression_type (element 0x83) set to 0x%08x\n", compression_type);
+ break;
+ case 0x84:
+ ea->sample_rate = read_arbitary(pb);
+ av_log (s, AV_LOG_DEBUG, "sample_rate (element 0x84) set to %i\n", ea->sample_rate);
break;
case 0x85:
ea->num_samples = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples);
+ av_log (s, AV_LOG_DEBUG, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples);
break;
case 0x8A:
- av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
- av_log (s, AV_LOG_INFO, "exited audio subheader\n");
+ av_log (s, AV_LOG_DEBUG, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
+ av_log (s, AV_LOG_DEBUG, "exited audio subheader\n");
+ inSubheader = 0;
+ break;
+ case 0xA0:
+ revision2 = read_arbitary(pb);
+ av_log (s, AV_LOG_DEBUG, "revision2 (element 0xA0) set to 0x%08x\n", revision2);
+ break;
+ case 0xFF:
+ av_log (s, AV_LOG_DEBUG, "end of header block reached (within audio subheader)\n");
inSubheader = 0;
+ inHeader = 0;
break;
default:
- av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
+ av_log (s, AV_LOG_DEBUG, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
break;
}
}
break;
case 0xFF:
- av_log (s, AV_LOG_INFO, "end of header block reached\n");
+ av_log (s, AV_LOG_DEBUG, "end of header block reached\n");
inHeader = 0;
break;
default:
- av_log (s, AV_LOG_INFO, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb));
+ av_log (s, AV_LOG_DEBUG, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb));
break;
}
}
- if ((ea->num_channels != 2) || (ea->compression_type != 7)) {
- av_log (s, AV_LOG_ERROR, "unsupported stream type\n");
+ switch (compression_type) {
+ case 0: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
+ case 7: ea->audio_codec = CODEC_ID_ADPCM_EA; break;
+ case -1:
+ switch (revision) {
+ case 1: ea->audio_codec = CODEC_ID_ADPCM_EA_R1; break;
+ case 2: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break;
+ case 3: ea->audio_codec = CODEC_ID_ADPCM_EA_R3; break;
+ case -1: break;
+ default:
+ av_log(s, AV_LOG_ERROR, "unsupported stream type; revision=%i\n", revision);
+ return 0;
+ }
+ switch (revision2) {
+ case 8: ea->audio_codec = CODEC_ID_PCM_S16LE_PLANAR; break;
+ case 10: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break;
+ case 16: ea->audio_codec = CODEC_ID_MP3; break;
+ case -1: break;
+ default:
+ av_log(s, AV_LOG_ERROR, "unsupported stream type; revision2=%i\n", revision2);
+ return 0;
+ }
+ break;
+ default:
+ av_log(s, AV_LOG_ERROR, "unsupported stream type; compression_type=%i\n", compression_type);
return 0;
}
- /* skip to the start of the data */
- url_fseek(pb, size, SEEK_SET);
+ if (ea->sample_rate == -1)
+ ea->sample_rate = revision==3 ? 48000 : 22050;
return 1;
}
+/*
+ * Process EACS sound header
+ * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
+ */
+static int process_audio_header_eacs(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
+ int compression_type;
-static int ea_probe(AVProbeData *p)
+ ea->sample_rate = ea->big_endian ? get_be32(pb) : get_le32(pb);
+ ea->bytes = get_byte(pb); /* 1=8-bit, 2=16-bit */
+ ea->num_channels = get_byte(pb);
+ compression_type = get_byte(pb);
+ url_fskip(pb, 13);
+
+ switch (compression_type) {
+ case 0:
+ switch (ea->bytes) {
+ case 1: ea->audio_codec = CODEC_ID_PCM_S8; break;
+ case 2: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
+ }
+ break;
+ case 1: ea->audio_codec = CODEC_ID_PCM_MULAW; ea->bytes = 1; break;
+ case 2: ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_EACS; break;
+ default:
+ av_log (s, AV_LOG_ERROR, "unsupported stream type; audio compression_type=%i\n", compression_type);
+ }
+
+ return 1;
+}
+
+/*
+ * Process SEAD sound header
+ * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
+ */
+static int process_audio_header_sead(AVFormatContext *s)
{
- if (p->buf_size < 4)
- return 0;
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
- if (AV_RL32(&p->buf[0]) != SCHl_TAG)
- return 0;
+ ea->sample_rate = get_le32(pb);
+ ea->bytes = get_le32(pb); /* 1=8-bit, 2=16-bit */
+ ea->num_channels = get_le32(pb);
+ ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_SEAD;
- return AVPROBE_SCORE_MAX;
+ return 1;
+}
+
+static int process_video_header_mdec(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
+ url_fskip(pb, 4);
+ ea->width = get_le16(pb);
+ ea->height = get_le16(pb);
+ ea->time_base = (AVRational){1,15};
+ ea->video_codec = CODEC_ID_MDEC;
+ return 1;
+}
+
+static int process_video_header_vp6(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
+
+ url_fskip(pb, 16);
+ ea->time_base.den = get_le32(pb);
+ ea->time_base.num = get_le32(pb);
+ ea->video_codec = CODEC_ID_VP6;
+
+ return 1;
+}
+
+/*
+ * Process EA file header
+ * Returns 1 if the EA file is valid and successfully opened, 0 otherwise
+ */
+static int process_ea_header(AVFormatContext *s) {
+ uint32_t blockid, size = 0;
+ EaDemuxContext *ea = s->priv_data;
+ ByteIOContext *pb = s->pb;
+ int i;
+
+ for (i=0; i<5 && (!ea->audio_codec || !ea->video_codec); i++) {
+ unsigned int startpos = url_ftell(pb);
+ int err = 0;
+
+ blockid = get_le32(pb);
+ size = get_le32(pb);
+ if (i == 0)
+ ea->big_endian = size > 0x000FFFFF;
+ if (ea->big_endian)
+ size = bswap_32(size);
+
+ switch (blockid) {
+ case ISNh_TAG:
+ if (get_le32(pb) != EACS_TAG) {
+ av_log (s, AV_LOG_ERROR, "unknown 1SNh headerid\n");
+ return 0;
+ }
+ err = process_audio_header_eacs(s);
+ break;
+
+ case SCHl_TAG :
+ case SHEN_TAG :
+ blockid = get_le32(pb);
+ if (blockid == GSTR_TAG) {
+ url_fskip(pb, 4);
+ } else if ((blockid & 0xFFFF)!=PT00_TAG) {
+ av_log (s, AV_LOG_ERROR, "unknown SCHl headerid\n");
+ return 0;
+ }
+ err = process_audio_header_elements(s);
+ break;
+
+ case SEAD_TAG:
+ err = process_audio_header_sead(s);
+ break;
+
+ case MVIh_TAG :
+ ea->video_codec = CODEC_ID_CMV;
+ ea->time_base = (AVRational){0,0};
+ break;
+
+ case kVGT_TAG:
+ ea->video_codec = CODEC_ID_TGV;
+ ea->time_base = (AVRational){0,0};
+ break;
+
+ case mTCD_TAG :
+ err = process_video_header_mdec(s);
+ break;
+
+ case MPCh_TAG:
+ ea->video_codec = CODEC_ID_MPEG2VIDEO;
+ break;
+
+ case pQGT_TAG:
+ case TGQs_TAG:
+ ea->video_codec = CODEC_ID_TGQ;
+ break;
+
+ case pIQT_TAG:
+ ea->video_codec = CODEC_ID_TQI;
+ break;
+
+ case MVhd_TAG :
+ err = process_video_header_vp6(s);
+ break;
+ }
+
+ if (err < 0) {
+ av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
+ return err;
+ }
+
+ url_fseek(pb, startpos + size, SEEK_SET);
+ }
+
+ url_fseek(pb, 0, SEEK_SET);
+
+ return 1;
+}
+
+
+static int ea_probe(AVProbeData *p)
+{
+ switch (AV_RL32(&p->buf[0])) {
+ case ISNh_TAG:
+ case SCHl_TAG:
+ case SEAD_TAG:
+ case SHEN_TAG:
+ case kVGT_TAG:
+ case MADk_TAG:
+ case MPCh_TAG:
+ case MVhd_TAG:
+ case MVIh_TAG:
+ return AVPROBE_SCORE_MAX;
+ }
+ return 0;
}
static int ea_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
- EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
+ EaDemuxContext *ea = s->priv_data;
AVStream *st;
if (!process_ea_header(s))
- return AVERROR_IO;
-
-#if 0
- /* initialize the video decoder stream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 33, 1, 90000);
- ea->video_stream_index = st->index;
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_EA_MJPEG;
- st->codec->codec_tag = 0; /* no fourcc */
-#endif
-
- /* initialize the audio decoder stream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 33, 1, EA_SAMPLE_RATE);
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_ADPCM_EA;
- st->codec->codec_tag = 0; /* no tag */
- st->codec->channels = ea->num_channels;
- st->codec->sample_rate = EA_SAMPLE_RATE;
- st->codec->bits_per_sample = EA_BITS_PER_SAMPLE;
- st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
- st->codec->bits_per_sample / 4;
- st->codec->block_align = st->codec->channels * st->codec->bits_per_sample;
-
- ea->audio_stream_index = st->index;
- ea->audio_frame_counter = 0;
+ return AVERROR(EIO);
+
+ if (ea->video_codec) {
+ /* initialize the video decoder stream */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR(ENOMEM);
+ ea->video_stream_index = st->index;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ st->codec->codec_id = ea->video_codec;
+ st->codec->codec_tag = 0; /* no fourcc */
+ st->codec->time_base = ea->time_base;
+ st->codec->width = ea->width;
+ st->codec->height = ea->height;
+ }
+
+ if (ea->audio_codec) {
+ /* initialize the audio decoder stream */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR(ENOMEM);
+ av_set_pts_info(st, 33, 1, ea->sample_rate);
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ st->codec->codec_id = ea->audio_codec;
+ st->codec->codec_tag = 0; /* no tag */
+ st->codec->channels = ea->num_channels;
+ st->codec->sample_rate = ea->sample_rate;
+ st->codec->bits_per_coded_sample = ea->bytes * 8;
+ st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
+ st->codec->bits_per_coded_sample / 4;
+ st->codec->block_align = st->codec->channels*st->codec->bits_per_coded_sample;
+ ea->audio_stream_index = st->index;
+ ea->audio_frame_counter = 0;
+ }
return 1;
}
AVPacket *pkt)
{
EaDemuxContext *ea = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
int ret = 0;
int packet_read = 0;
- unsigned char preamble[EA_PREAMBLE_SIZE];
unsigned int chunk_type, chunk_size;
+ int key = 0;
+ int av_uninit(num_samples);
while (!packet_read) {
-
- if (get_buffer(pb, preamble, EA_PREAMBLE_SIZE) != EA_PREAMBLE_SIZE)
- return AVERROR_IO;
- chunk_type = AV_RL32(&preamble[0]);
- chunk_size = AV_RL32(&preamble[4]) - EA_PREAMBLE_SIZE;
+ chunk_type = get_le32(pb);
+ chunk_size = (ea->big_endian ? get_be32(pb) : get_le32(pb)) - 8;
switch (chunk_type) {
/* audio data */
+ case ISNh_TAG:
+ /* header chunk also contains data; skip over the header portion*/
+ url_fskip(pb, 32);
+ chunk_size -= 32;
+ case ISNd_TAG:
case SCDl_TAG:
+ case SNDC_TAG:
+ case SDEN_TAG:
+ if (!ea->audio_codec) {
+ url_fskip(pb, chunk_size);
+ break;
+ } else if (ea->audio_codec == CODEC_ID_PCM_S16LE_PLANAR ||
+ ea->audio_codec == CODEC_ID_MP3) {
+ num_samples = get_le32(pb);
+ url_fskip(pb, 8);
+ chunk_size -= 12;
+ }
ret = av_get_packet(pb, pkt, chunk_size);
- if (ret != chunk_size)
- ret = AVERROR_IO;
- else {
- pkt->stream_index = ea->audio_stream_index;
- pkt->pts = 90000;
- pkt->pts *= ea->audio_frame_counter;
- pkt->pts /= EA_SAMPLE_RATE;
-
- /* 2 samples/byte, 1 or 2 samples per frame depending
- * on stereo; chunk also has 12-byte header */
- ea->audio_frame_counter += ((chunk_size - 12) * 2) /
- ea->num_channels;
+ if (ret < 0)
+ return ret;
+ pkt->stream_index = ea->audio_stream_index;
+ pkt->pts = 90000;
+ pkt->pts *= ea->audio_frame_counter;
+ pkt->pts /= ea->sample_rate;
+
+ switch (ea->audio_codec) {
+ case CODEC_ID_ADPCM_EA:
+ /* 2 samples/byte, 1 or 2 samples per frame depending
+ * on stereo; chunk also has 12-byte header */
+ ea->audio_frame_counter += ((chunk_size - 12) * 2) /
+ ea->num_channels;
+ break;
+ case CODEC_ID_PCM_S16LE_PLANAR:
+ case CODEC_ID_MP3:
+ ea->audio_frame_counter += num_samples;
+ break;
+ default:
+ ea->audio_frame_counter += chunk_size /
+ (ea->bytes * ea->num_channels);
}
packet_read = 1;
break;
/* ending tag */
+ case 0:
+ case ISNe_TAG:
case SCEl_TAG:
- ret = AVERROR_IO;
+ case SEND_TAG:
+ case SEEN_TAG:
+ ret = AVERROR(EIO);
+ packet_read = 1;
+ break;
+
+ case MVIh_TAG:
+ case kVGT_TAG:
+ case pQGT_TAG:
+ case TGQs_TAG:
+ key = PKT_FLAG_KEY;
+ case MVIf_TAG:
+ case fVGT_TAG:
+ url_fseek(pb, -8, SEEK_CUR); // include chunk preamble
+ chunk_size += 8;
+ goto get_video_packet;
+
+ case mTCD_TAG:
+ url_fseek(pb, 8, SEEK_CUR); // skip ea dct header
+ chunk_size -= 8;
+ goto get_video_packet;
+
+ case MV0K_TAG:
+ case MPCh_TAG:
+ case pIQT_TAG:
+ key = PKT_FLAG_KEY;
+ case MV0F_TAG:
+get_video_packet:
+ ret = av_get_packet(pb, pkt, chunk_size);
+ if (ret < 0)
+ return ret;
+ pkt->stream_index = ea->video_stream_index;
+ pkt->flags |= key;
packet_read = 1;
break;
url_fseek(pb, chunk_size, SEEK_CUR);
break;
}
-
- /* ending packet */
- if (chunk_type == SCEl_TAG) {
- }
}
return ret;
}
-static int ea_read_close(AVFormatContext *s)
-{
-// EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
-
- return 0;
-}
-
AVInputFormat ea_demuxer = {
"ea",
- "Electronic Arts Multimedia Format",
+ NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia Format"),
sizeof(EaDemuxContext),
ea_probe,
ea_read_header,
ea_read_packet,
- ea_read_close,
};
projects / frescor / ffmpeg.git / blobdiff