From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Mon, 26 Aug 2013 15:10:18 +0100 Subject: adding ffmpeg specific version --- ffmpeg1/libavformat/electronicarts.c | 636 +++++++++++++++++++++++++++++++++++ 1 file changed, 636 insertions(+) create mode 100644 ffmpeg1/libavformat/electronicarts.c (limited to 'ffmpeg1/libavformat/electronicarts.c') diff --git a/ffmpeg1/libavformat/electronicarts.c b/ffmpeg1/libavformat/electronicarts.c new file mode 100644 index 0000000..cf7a271 --- /dev/null +++ b/ffmpeg1/libavformat/electronicarts.c @@ -0,0 +1,636 @@ +/* Electronic Arts Multimedia File Demuxer + * Copyright (c) 2004 The ffmpeg Project + * Copyright (c) 2006-2008 Peter Ross + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Electronic Arts Multimedia file demuxer (WVE/UV2/etc.) + * by Robin Kay (komadori at gekkou.co.uk) + */ + +#include "libavutil/intreadwrite.h" +#include "avformat.h" +#include "internal.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 SCEl_TAG MKTAG('S', 'C', 'E', 'l') +#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 MADm_TAG MKTAG('M', 'A', 'D', 'm') /* MAD p-frame */ +#define MADe_TAG MKTAG('M', 'A', 'D', 'e') /* MAD lqp-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 big_endian; + + enum AVCodecID video_codec; + AVRational time_base; + int width, height; + int nb_frames; + int video_stream_index; + + enum AVCodecID audio_codec; + int audio_stream_index; + + int bytes; + int sample_rate; + int num_channels; + int num_samples; +} EaDemuxContext; + +static uint32_t read_arbitary(AVIOContext *pb) { + uint8_t size, byte; + int i; + uint32_t word; + + size = avio_r8(pb); + + word = 0; + for (i = 0; i < size; i++) { + byte = avio_r8(pb); + word <<= 8; + word |= byte; + } + + return word; +} + +/* + * Process PT/GSTR sound header + * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx + */ +static int process_audio_header_elements(AVFormatContext *s) +{ + int inHeader = 1; + EaDemuxContext *ea = s->priv_data; + AVIOContext *pb = s->pb; + int compression_type = -1, revision = -1, revision2 = -1; + + ea->bytes = 2; + ea->sample_rate = -1; + ea->num_channels = 1; + + while (!url_feof(pb) && inHeader) { + int inSubheader; + uint8_t byte; + byte = avio_r8(pb); + + switch (byte) { + case 0xFD: + av_log (s, AV_LOG_DEBUG, "entered audio subheader\n"); + inSubheader = 1; + while (!url_feof(pb) && inSubheader) { + uint8_t subbyte; + subbyte = avio_r8(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_DEBUG, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels); + break; + case 0x83: + 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_DEBUG, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples); + break; + case 0x8A: + 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_DEBUG, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb)); + break; + } + } + break; + case 0xFF: + av_log (s, AV_LOG_DEBUG, "end of header block reached\n"); + inHeader = 0; + break; + default: + av_log (s, AV_LOG_DEBUG, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb)); + break; + } + } + + switch (compression_type) { + case 0: ea->audio_codec = AV_CODEC_ID_PCM_S16LE; break; + case 7: ea->audio_codec = AV_CODEC_ID_ADPCM_EA; break; + case -1: + switch (revision) { + case 1: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1; break; + case 2: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2; break; + case 3: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R3; break; + case -1: break; + default: + avpriv_request_sample(s, "stream type; revision=%i", revision); + return 0; + } + switch (revision2) { + case 8: ea->audio_codec = AV_CODEC_ID_PCM_S16LE_PLANAR; break; + case 10: + switch (revision) { + case -1: + case 2: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1; break; + case 3: ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2; break; + default: + avpriv_request_sample(s, "stream type; revision=%i, revision2=%i", revision, revision2); + return 0; + } + break; + case 16: ea->audio_codec = AV_CODEC_ID_MP3; break; + case -1: break; + default: + ea->audio_codec = AV_CODEC_ID_NONE; + avpriv_request_sample(s, "stream type; revision2=%i", revision2); + return 0; + } + break; + default: + avpriv_request_sample(s, "stream type; compression_type=%i", compression_type); + return 0; + } + + 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; + AVIOContext *pb = s->pb; + int compression_type; + + ea->sample_rate = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb); + ea->bytes = avio_r8(pb); /* 1=8-bit, 2=16-bit */ + ea->num_channels = avio_r8(pb); + compression_type = avio_r8(pb); + avio_skip(pb, 13); + + switch (compression_type) { + case 0: + switch (ea->bytes) { + case 1: ea->audio_codec = AV_CODEC_ID_PCM_S8; break; + case 2: ea->audio_codec = AV_CODEC_ID_PCM_S16LE; break; + } + break; + case 1: ea->audio_codec = AV_CODEC_ID_PCM_MULAW; ea->bytes = 1; break; + case 2: ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_EACS; break; + default: + avpriv_request_sample(s, "stream type; audio compression_type=%i", 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) +{ + EaDemuxContext *ea = s->priv_data; + AVIOContext *pb = s->pb; + + ea->sample_rate = avio_rl32(pb); + ea->bytes = avio_rl32(pb); /* 1=8-bit, 2=16-bit */ + ea->num_channels = avio_rl32(pb); + ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_SEAD; + + return 1; +} + +static int process_video_header_mdec(AVFormatContext *s) +{ + EaDemuxContext *ea = s->priv_data; + AVIOContext *pb = s->pb; + avio_skip(pb, 4); + ea->width = avio_rl16(pb); + ea->height = avio_rl16(pb); + ea->time_base = (AVRational){1,15}; + ea->video_codec = AV_CODEC_ID_MDEC; + return 1; +} + +static int process_video_header_vp6(AVFormatContext *s) +{ + EaDemuxContext *ea = s->priv_data; + AVIOContext *pb = s->pb; + + avio_skip(pb, 8); + ea->nb_frames = avio_rl32(pb); + avio_skip(pb, 4); + ea->time_base.den = avio_rl32(pb); + ea->time_base.num = avio_rl32(pb); + ea->video_codec = AV_CODEC_ID_VP6; + + return 1; +} + +static int process_video_header_cmv(AVFormatContext *s) +{ + EaDemuxContext *ea = s->priv_data; + int fps; + + avio_skip(s->pb, 10); + fps = avio_rl16(s->pb); + if (fps) + ea->time_base = (AVRational){1, fps}; + ea->video_codec = AV_CODEC_ID_CMV; + + return 0; +} + +/* + * 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; + 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; + } + err = 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: + err = process_audio_header_sead(s); + break; + + case MVIh_TAG : + err = process_video_header_cmv(s); + break; + + case kVGT_TAG: + ea->video_codec = AV_CODEC_ID_TGV; + break; + + case mTCD_TAG : + err = 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; +} + + +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: + break; + default: + return 0; + } + if (AV_RL32(&p->buf[4]) > 0xfffff && AV_RB32(&p->buf[4]) > 0xfffff) + return 0; + return AVPROBE_SCORE_MAX; +} + +static int ea_read_header(AVFormatContext *s) +{ + EaDemuxContext *ea = s->priv_data; + AVStream *st; + + if (process_ea_header(s)<=0) + return AVERROR(EIO); + + if (ea->video_codec) { + /* initialize the video decoder stream */ + st = avformat_new_stream(s, NULL); + if (!st) + return AVERROR(ENOMEM); + ea->video_stream_index = st->index; + st->codec->codec_type = AVMEDIA_TYPE_VIDEO; + st->codec->codec_id = ea->video_codec; + // parsing is necessary to make FFmpeg generate correct timestamps + if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) + st->need_parsing = AVSTREAM_PARSE_HEADERS; + st->codec->codec_tag = 0; /* no fourcc */ + st->codec->width = ea->width; + st->codec->height = ea->height; + st->duration = st->nb_frames = ea->nb_frames; + if (ea->time_base.num) + avpriv_set_pts_info(st, 64, ea->time_base.num, ea->time_base.den); + st->r_frame_rate = + st->avg_frame_rate = av_inv_q(ea->time_base); + } + + if (ea->audio_codec) { + if (ea->num_channels <= 0) { + av_log(s, AV_LOG_WARNING, "Unsupported number of channels: %d\n", ea->num_channels); + ea->audio_codec = 0; + return 1; + } + if (ea->sample_rate <= 0) { + av_log(s, AV_LOG_ERROR, "Unsupported sample rate: %d\n", ea->sample_rate); + ea->audio_codec = 0; + return 1; + } + if (ea->bytes <= 0) { + av_log(s, AV_LOG_ERROR, "Invalid number of bytes per sample: %d\n", ea->bytes); + ea->audio_codec = AV_CODEC_ID_NONE; + return 1; + } + + /* initialize the audio decoder stream */ + st = avformat_new_stream(s, NULL); + if (!st) + return AVERROR(ENOMEM); + avpriv_set_pts_info(st, 33, 1, ea->sample_rate); + st->codec->codec_type = AVMEDIA_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; + st->start_time = 0; + } + + return 1; +} + +static int ea_read_packet(AVFormatContext *s, + AVPacket *pkt) +{ + EaDemuxContext *ea = s->priv_data; + AVIOContext *pb = s->pb; + int ret = 0; + int packet_read = 0; + int partial_packet = 0; + unsigned int chunk_type, chunk_size; + int key = 0; + int av_uninit(num_samples); + + while (!packet_read || partial_packet) { + chunk_type = avio_rl32(pb); + chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb); + if (chunk_size <= 8) + return AVERROR_INVALIDDATA; + chunk_size -= 8; + + switch (chunk_type) { + /* audio data */ + case ISNh_TAG: + /* header chunk also contains data; skip over the header portion*/ + if (chunk_size < 32) + return AVERROR_INVALIDDATA; + avio_skip(pb, 32); + chunk_size -= 32; + case ISNd_TAG: + case SCDl_TAG: + case SNDC_TAG: + case SDEN_TAG: + if (!ea->audio_codec) { + avio_skip(pb, chunk_size); + break; + } else if (ea->audio_codec == AV_CODEC_ID_PCM_S16LE_PLANAR || + ea->audio_codec == AV_CODEC_ID_MP3) { + num_samples = avio_rl32(pb); + avio_skip(pb, 8); + chunk_size -= 12; + } + if (partial_packet) { + avpriv_request_sample(s, "video header followed by audio packet"); + av_free_packet(pkt); + partial_packet = 0; + } + ret = av_get_packet(pb, pkt, chunk_size); + if (ret < 0) + return ret; + pkt->stream_index = ea->audio_stream_index; + + switch (ea->audio_codec) { + case AV_CODEC_ID_ADPCM_EA: + case AV_CODEC_ID_ADPCM_EA_R1: + case AV_CODEC_ID_ADPCM_EA_R2: + case AV_CODEC_ID_ADPCM_IMA_EA_EACS: + if (pkt->size >= 4) + pkt->duration = AV_RL32(pkt->data); + break; + case AV_CODEC_ID_ADPCM_EA_R3: + if (pkt->size >= 4) + pkt->duration = AV_RB32(pkt->data); + break; + case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: + pkt->duration = ret * 2 / ea->num_channels; + break; + case AV_CODEC_ID_PCM_S16LE_PLANAR: + case AV_CODEC_ID_MP3: + pkt->duration = num_samples; + break; + default: + pkt->duration = chunk_size / (ea->bytes * ea->num_channels); + } + + packet_read = 1; + break; + + /* ending tag */ + case 0: + case ISNe_TAG: + case SCEl_TAG: + 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: + case MADk_TAG: + key = AV_PKT_FLAG_KEY; + case MVIf_TAG: + case fVGT_TAG: + case MADm_TAG: + case MADe_TAG: + avio_seek(pb, -8, SEEK_CUR); // include chunk preamble + chunk_size += 8; + goto get_video_packet; + + case mTCD_TAG: + avio_skip(pb, 8); // skip ea dct header + chunk_size -= 8; + goto get_video_packet; + + case MV0K_TAG: + case MPCh_TAG: + case pIQT_TAG: + key = AV_PKT_FLAG_KEY; + case MV0F_TAG: +get_video_packet: + if (partial_packet) { + ret = av_append_packet(pb, pkt, chunk_size); + } else + ret = av_get_packet(pb, pkt, chunk_size); + if (ret < 0) { + packet_read = 1; + break; + } + partial_packet = chunk_type == MVIh_TAG; + pkt->stream_index = ea->video_stream_index; + pkt->flags |= key; + packet_read = 1; + break; + + default: + avio_skip(pb, chunk_size); + break; + } + } + + if (ret < 0 && partial_packet) + av_free_packet(pkt); + return ret; +} + +AVInputFormat ff_ea_demuxer = { + .name = "ea", + .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia"), + .priv_data_size = sizeof(EaDemuxContext), + .read_probe = ea_probe, + .read_header = ea_read_header, + .read_packet = ea_read_packet, +}; -- cgit v1.2.3