/*
* 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 :
blockid = get_le32(pb);
if (blockid == GSTR_TAG) {
url_fskip(pb, 4);
} else if (blockid != 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 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;
}
/* Process EA file header.
* Return 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;
AVIOContext *pb = s->pb;
int i;
for (i = 0; i < 5 && (!ea->audio_codec || !ea->video.codec); i++) {
uint64_t startpos = avio_tell(pb);
int err = 0;
blockid = avio_rl32(pb);
size = avio_rl32(pb);
if (i == 0)
ea->big_endian = size > av_bswap32(size);
if (ea->big_endian)
size = av_bswap32(size);
if (size < 8) {
av_log(s, AV_LOG_ERROR, "chunk size too small\n");
return AVERROR_INVALIDDATA;
}
switch (blockid) {
case ISNh_TAG:
if (avio_rl32(pb) != EACS_TAG) {
avpriv_request_sample(s, "unknown 1SNh headerid");
return 0;
}
process_audio_header_eacs(s);
break;
case SCHl_TAG:
case SHEN_TAG:
blockid = avio_rl32(pb);
if (blockid == GSTR_TAG) {
avio_skip(pb, 4);
} else if ((blockid & 0xFF) != (PT00_TAG & 0xFF)) {
blockid = avio_rl32(pb);
}
ea->platform = (blockid >> 16) & 0xFF;
err = process_audio_header_elements(s);
break;
case SEAD_TAG:
process_audio_header_sead(s);
break;
case MVIh_TAG:
process_video_header_cmv(s, &ea->video);
break;
case kVGT_TAG:
ea->video.codec = AV_CODEC_ID_TGV;
break;
case mTCD_TAG:
process_video_header_mdec(s, &ea->video);
break;
case MPCh_TAG:
ea->video.codec = AV_CODEC_ID_MPEG2VIDEO;
break;
case pQGT_TAG:
case TGQs_TAG:
ea->video.codec = AV_CODEC_ID_TGQ;
ea->video.time_base = (AVRational) { 1, 15 };
break;
case pIQT_TAG:
ea->video.codec = AV_CODEC_ID_TQI;
ea->video.time_base = (AVRational) { 1, 15 };
break;
case MADk_TAG:
ea->video.codec = AV_CODEC_ID_MAD;
avio_skip(pb, 6);
ea->video.time_base = (AVRational) { avio_rl16(pb), 1000 };
break;
case MVhd_TAG:
err = process_video_header_vp6(s, &ea->video);
break;
case AVhd_TAG:
err = process_video_header_vp6(s, &ea->alpha);
break;
}
if (err < 0) {
av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
return err;
}
avio_seek(pb, startpos + size, SEEK_SET);
}
avio_seek(pb, 0, SEEK_SET);
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;
#ifndef _MSC_VER
ea->time_base = (AVRational){0,0};
#else
ea->time_base = av_create_rational(0,0);
#endif
break;
case kVGT_TAG:
ea->video_codec = CODEC_ID_TGV;
#ifndef _MSC_VER
ea->time_base = (AVRational){0,0};
#else
ea->time_base.num = ea->time_base.den = 0;
#endif
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 MADk_TAG :
ea->video_codec = CODEC_ID_MAD;
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;
}
/* Process EA file header.
* Return 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;
AVIOContext *pb = s->pb;
int i;
for (i = 0; i < 5 && (!ea->audio_codec || !ea->video_codec); i++) {
unsigned int startpos = avio_tell(pb);
int err = 0;
blockid = avio_rl32(pb);
size = avio_rl32(pb);
if (i == 0)
ea->big_endian = size > 0x000FFFFF;
if (ea->big_endian)
size = av_bswap32(size);
switch (blockid) {
case ISNh_TAG:
if (avio_rl32(pb) != EACS_TAG) {
avpriv_request_sample(s, "unknown 1SNh headerid");
return 0;
}
process_audio_header_eacs(s);
break;
case SCHl_TAG:
case SHEN_TAG:
blockid = avio_rl32(pb);
if (blockid == GSTR_TAG) {
avio_skip(pb, 4);
} else if ((blockid & 0xFFFF) != PT00_TAG) {
avpriv_request_sample(s, "unknown SCHl headerid");
return 0;
}
err = process_audio_header_elements(s);
break;
case SEAD_TAG:
process_audio_header_sead(s);
break;
case MVIh_TAG:
process_video_header_cmv(s);
break;
case kVGT_TAG:
ea->video_codec = AV_CODEC_ID_TGV;
break;
case mTCD_TAG:
process_video_header_mdec(s);
break;
case MPCh_TAG:
ea->video_codec = AV_CODEC_ID_MPEG2VIDEO;
break;
case pQGT_TAG:
case TGQs_TAG:
ea->video_codec = AV_CODEC_ID_TGQ;
break;
case pIQT_TAG:
ea->video_codec = AV_CODEC_ID_TQI;
break;
case MADk_TAG:
ea->video_codec = AV_CODEC_ID_MAD;
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;
}
avio_seek(pb, startpos + size, SEEK_SET);
}
avio_seek(pb, 0, SEEK_SET);
return 1;
}
/*
* Process EA file header
* Returns 1 if the EA file is valid and successfully opened, 0 otherwise
*/
int CEASpliterFilter::process_header() {
uint32_t blockid, size = 0;
int i;
EaDemuxContext *ea = (EaDemuxContext *)m_pea;
for (i=0; i<5 && (!ea->audio_codec || !ea->video_codec); i++) {
unsigned int startpos = m_pFile->GetPos();
int err = 0;
blockid = get_le32(pb);
av_log(s, AV_LOG_ERROR, " %x\n", blockid);
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 (m_pFile->BitRead(32) != EACS_TAG) {
av_log (s, AV_LOG_ERROR, "unknown 1SNh headerid\n");
return 0;
}
err = process_audio_header_eacs();
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 %x\n", blockid);
return 0;
}
err = process_audio_header_elements();
break;
case SEAD_TAG:
err = process_audio_header_sead();
break;
case MVIh_TAG :
ea->video_codec = CODEC_ID_CMV;
ea->time_base.num = 0;
ea->time_base.den = 0;
break;
case kVGT_TAG:
ea->video_codec = CODEC_ID_TGV;
ea->time_base.num = 0;
ea->time_base.den = 0;
break;
case mTCD_TAG :
err = process_video_header_mdec();
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 MADk_TAG :
ea->video_codec = CODEC_ID_MAD;
break;
case MVhd_TAG :
err = process_video_header_vp6();
break;
default:
av_log(s, AV_LOG_ERROR, "error parsing header: %x\n", blockid);
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);
m_pFile->Seek( startpos + size);
}
//url_fseek(pb, 0, SEEK_SET);
m_pFile->Seek(0);
return 1;
}
