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Diffstat (limited to 'ffmpeg1/libavformat/psxstr.c')
-rw-r--r--ffmpeg1/libavformat/psxstr.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/ffmpeg1/libavformat/psxstr.c b/ffmpeg1/libavformat/psxstr.c
deleted file mode 100644
index 90c933e..0000000
--- a/ffmpeg1/libavformat/psxstr.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * Sony Playstation (PSX) STR File Demuxer
- * Copyright (c) 2003 The ffmpeg Project
- *
- * 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
- * PSX STR file demuxer
- * by Mike Melanson (melanson@pcisys.net)
- * This module handles streams that have been ripped from Sony Playstation
- * CD games. This demuxer can handle either raw STR files (which are just
- * concatenations of raw compact disc sectors) or STR files with 0x2C-byte
- * RIFF headers, followed by CD sectors.
- */
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/intreadwrite.h"
-#include "avformat.h"
-#include "internal.h"
-
-#define RIFF_TAG MKTAG('R', 'I', 'F', 'F')
-#define CDXA_TAG MKTAG('C', 'D', 'X', 'A')
-
-#define RAW_CD_SECTOR_SIZE 2352
-#define RAW_CD_SECTOR_DATA_SIZE 2304
-#define VIDEO_DATA_CHUNK_SIZE 0x7E0
-#define VIDEO_DATA_HEADER_SIZE 0x38
-#define RIFF_HEADER_SIZE 0x2C
-
-#define CDXA_TYPE_MASK 0x0E
-#define CDXA_TYPE_DATA 0x08
-#define CDXA_TYPE_AUDIO 0x04
-#define CDXA_TYPE_VIDEO 0x02
-
-#define STR_MAGIC (0x80010160)
-
-typedef struct StrChannel {
- /* video parameters */
- int video_stream_index;
- AVPacket tmp_pkt;
-
- /* audio parameters */
- int audio_stream_index;
-} StrChannel;
-
-typedef struct StrDemuxContext {
-
- /* a STR file can contain up to 32 channels of data */
- StrChannel channels[32];
-} StrDemuxContext;
-
-static const uint8_t sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00};
-
-static int str_probe(AVProbeData *p)
-{
- const uint8_t *sector= p->buf;
- const uint8_t *end= sector + p->buf_size;
- int aud=0, vid=0;
-
- if (p->buf_size < RAW_CD_SECTOR_SIZE)
- return 0;
-
- if ((AV_RL32(&p->buf[0]) == RIFF_TAG) &&
- (AV_RL32(&p->buf[8]) == CDXA_TAG)) {
-
- /* RIFF header seen; skip 0x2C bytes */
- sector += RIFF_HEADER_SIZE;
- }
-
- while (end - sector >= RAW_CD_SECTOR_SIZE) {
- /* look for CD sync header (00, 0xFF x 10, 00) */
- if (memcmp(sector,sync_header,sizeof(sync_header)))
- return 0;
-
- if (sector[0x11] >= 32)
- return 0;
-
- switch (sector[0x12] & CDXA_TYPE_MASK) {
- case CDXA_TYPE_DATA:
- case CDXA_TYPE_VIDEO: {
- int current_sector = AV_RL16(&sector[0x1C]);
- int sector_count = AV_RL16(&sector[0x1E]);
- int frame_size = AV_RL32(&sector[0x24]);
-
- if(!( frame_size>=0
- && current_sector < sector_count
- && sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
- return 0;
- }
-
- /*st->codec->width = AV_RL16(&sector[0x28]);
- st->codec->height = AV_RL16(&sector[0x2A]);*/
-
-// if (current_sector == sector_count-1) {
- vid++;
-// }
-
- }
- break;
- case CDXA_TYPE_AUDIO:
- if(sector[0x13]&0x2A)
- return 0;
- aud++;
- break;
- default:
- if(sector[0x12] & CDXA_TYPE_MASK)
- return 0;
- }
- sector += RAW_CD_SECTOR_SIZE;
- }
- /* MPEG files (like those ripped from VCDs) can also look like this;
- * only return half certainty */
- if(vid+aud > 3) return 50;
- else if(vid+aud) return 1;
- else return 0;
-}
-
-static int str_read_header(AVFormatContext *s)
-{
- AVIOContext *pb = s->pb;
- StrDemuxContext *str = s->priv_data;
- unsigned char sector[RAW_CD_SECTOR_SIZE];
- int start;
- int i;
-
- /* skip over any RIFF header */
- if (avio_read(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
- return AVERROR(EIO);
- if (AV_RL32(&sector[0]) == RIFF_TAG)
- start = RIFF_HEADER_SIZE;
- else
- start = 0;
-
- avio_seek(pb, start, SEEK_SET);
-
- for(i=0; i<32; i++){
- str->channels[i].video_stream_index=
- str->channels[i].audio_stream_index= -1;
- }
-
- s->ctx_flags |= AVFMTCTX_NOHEADER;
-
- return 0;
-}
-
-static int str_read_packet(AVFormatContext *s,
- AVPacket *ret_pkt)
-{
- AVIOContext *pb = s->pb;
- StrDemuxContext *str = s->priv_data;
- unsigned char sector[RAW_CD_SECTOR_SIZE];
- int channel;
- AVPacket *pkt;
- AVStream *st;
-
- while (1) {
-
- if (avio_read(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
- return AVERROR(EIO);
-
- channel = sector[0x11];
- if (channel >= 32)
- return AVERROR_INVALIDDATA;
-
- switch (sector[0x12] & CDXA_TYPE_MASK) {
-
- case CDXA_TYPE_DATA:
- case CDXA_TYPE_VIDEO:
- {
-
- int current_sector = AV_RL16(&sector[0x1C]);
- int sector_count = AV_RL16(&sector[0x1E]);
- int frame_size = AV_RL32(&sector[0x24]);
-
- if(!( frame_size>=0
- && current_sector < sector_count
- && sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
- av_log(s, AV_LOG_ERROR, "Invalid parameters %d %d %d\n", current_sector, sector_count, frame_size);
- break;
- }
-
- if(str->channels[channel].video_stream_index < 0){
- /* allocate a new AVStream */
- st = avformat_new_stream(s, NULL);
- if (!st)
- return AVERROR(ENOMEM);
- avpriv_set_pts_info(st, 64, 1, 15);
-
- str->channels[channel].video_stream_index = st->index;
-
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = AV_CODEC_ID_MDEC;
- st->codec->codec_tag = 0; /* no fourcc */
- st->codec->width = AV_RL16(&sector[0x28]);
- st->codec->height = AV_RL16(&sector[0x2A]);
- }
-
- /* if this is the first sector of the frame, allocate a pkt */
- pkt = &str->channels[channel].tmp_pkt;
-
- if(pkt->size != sector_count*VIDEO_DATA_CHUNK_SIZE){
- if(pkt->data)
- av_log(s, AV_LOG_ERROR, "missmatching sector_count\n");
- av_free_packet(pkt);
- if (av_new_packet(pkt, sector_count*VIDEO_DATA_CHUNK_SIZE))
- return AVERROR(EIO);
-
- pkt->pos= avio_tell(pb) - RAW_CD_SECTOR_SIZE;
- pkt->stream_index =
- str->channels[channel].video_stream_index;
- }
-
- memcpy(pkt->data + current_sector*VIDEO_DATA_CHUNK_SIZE,
- sector + VIDEO_DATA_HEADER_SIZE,
- VIDEO_DATA_CHUNK_SIZE);
-
- if (current_sector == sector_count-1) {
- pkt->size= frame_size;
- *ret_pkt = *pkt;
- pkt->data= NULL;
- pkt->size= -1;
- pkt->buf = NULL;
-#if FF_API_DESTRUCT_PACKET
- pkt->destruct = NULL;
-#endif
- return 0;
- }
-
- }
- break;
-
- case CDXA_TYPE_AUDIO:
- if(str->channels[channel].audio_stream_index < 0){
- int fmt = sector[0x13];
- /* allocate a new AVStream */
- st = avformat_new_stream(s, NULL);
- if (!st)
- return AVERROR(ENOMEM);
-
- str->channels[channel].audio_stream_index = st->index;
-
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = AV_CODEC_ID_ADPCM_XA;
- st->codec->codec_tag = 0; /* no fourcc */
- if (fmt & 1) {
- st->codec->channels = 2;
- st->codec->channel_layout = AV_CH_LAYOUT_STEREO;
- } else {
- st->codec->channels = 1;
- st->codec->channel_layout = AV_CH_LAYOUT_MONO;
- }
- st->codec->sample_rate = (fmt&4)?18900:37800;
- // st->codec->bit_rate = 0; //FIXME;
- st->codec->block_align = 128;
-
- avpriv_set_pts_info(st, 64, 18 * 224 / st->codec->channels,
- st->codec->sample_rate);
- st->start_time = 0;
- }
- pkt = ret_pkt;
- if (av_new_packet(pkt, 2304))
- return AVERROR(EIO);
- memcpy(pkt->data,sector+24,2304);
-
- pkt->stream_index =
- str->channels[channel].audio_stream_index;
- pkt->duration = 1;
- return 0;
- default:
- av_log(s, AV_LOG_WARNING, "Unknown sector type %02X\n", sector[0x12]);
- /* drop the sector and move on */
- break;
- }
-
- if (url_feof(pb))
- return AVERROR(EIO);
- }
-}
-
-static int str_read_close(AVFormatContext *s)
-{
- StrDemuxContext *str = s->priv_data;
- int i;
- for(i=0; i<32; i++){
- if(str->channels[i].tmp_pkt.data)
- av_free_packet(&str->channels[i].tmp_pkt);
- }
-
- return 0;
-}
-
-AVInputFormat ff_str_demuxer = {
- .name = "psxstr",
- .long_name = NULL_IF_CONFIG_SMALL("Sony Playstation STR"),
- .priv_data_size = sizeof(StrDemuxContext),
- .read_probe = str_probe,
- .read_header = str_read_header,
- .read_packet = str_read_packet,
- .read_close = str_read_close,
- .flags = AVFMT_NO_BYTE_SEEK,
-};
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