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Diffstat (limited to 'contrib/ffmpeg/libavformat/psxstr.c')
-rw-r--r--contrib/ffmpeg/libavformat/psxstr.c364
1 files changed, 0 insertions, 364 deletions
diff --git a/contrib/ffmpeg/libavformat/psxstr.c b/contrib/ffmpeg/libavformat/psxstr.c
deleted file mode 100644
index 2f1a3dc73..000000000
--- a/contrib/ffmpeg/libavformat/psxstr.c
+++ /dev/null
@@ -1,364 +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 psxstr.c
- * 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 "avformat.h"
-
-//#define PRINTSTUFF
-
-#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 {
-
- int type;
-#define STR_AUDIO 0
-#define STR_VIDEO 1
-
- /* video parameters */
- int width;
- int height;
- int video_stream_index;
-
- /* audio parameters */
- int sample_rate;
- int channels;
- int bits;
- int audio_stream_index;
-} StrChannel;
-
-typedef struct StrDemuxContext {
-
- /* a STR file can contain up to 32 channels of data */
- StrChannel channels[32];
-
- /* only decode the first audio and video channels encountered */
- int video_channel;
- int audio_channel;
-
- int64_t pts;
-
- unsigned char *video_chunk;
- AVPacket tmp_pkt;
-} StrDemuxContext;
-
-static const char sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00};
-
-static int str_probe(AVProbeData *p)
-{
- int start;
-
- /* need at least 0x38 bytes to validate */
- if (p->buf_size < 0x38)
- return 0;
-
- if ((AV_RL32(&p->buf[0]) == RIFF_TAG) &&
- (AV_RL32(&p->buf[8]) == CDXA_TAG)) {
-
- /* RIFF header seen; skip 0x2C bytes */
- start = RIFF_HEADER_SIZE;
- } else
- start = 0;
-
- /* look for CD sync header (00, 0xFF x 10, 00) */
- if (memcmp(p->buf+start,sync_header,sizeof(sync_header)))
- return 0;
-
- /* MPEG files (like those ripped from VCDs) can also look like this;
- * only return half certainty */
- return 50;
-}
-
-#if 0
-static void dump(unsigned char *buf,size_t len)
-{
- int i;
- for(i=0;i<len;i++) {
- if ((i&15)==0) av_log(NULL, AV_LOG_DEBUG, "%04x ",i);
- av_log(NULL, AV_LOG_DEBUG, "%02x ",buf[i]);
- if ((i&15)==15) av_log(NULL, AV_LOG_DEBUG, "\n");
- }
- av_log(NULL, AV_LOG_DEBUG, "\n");
-}
-#endif
-
-static int str_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
-{
- ByteIOContext *pb = &s->pb;
- StrDemuxContext *str = (StrDemuxContext *)s->priv_data;
- AVStream *st;
- unsigned char sector[RAW_CD_SECTOR_SIZE];
- int start;
- int i;
- int channel;
-
- /* initialize context members */
- str->pts = 0;
- str->audio_channel = -1; /* assume to audio or video */
- str->video_channel = -1;
- str->video_chunk = NULL;
-
-
- /* skip over any RIFF header */
- if (get_buffer(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
- return AVERROR_IO;
- if (AV_RL32(&sector[0]) == RIFF_TAG)
- start = RIFF_HEADER_SIZE;
- else
- start = 0;
-
- url_fseek(pb, start, SEEK_SET);
-
- /* check through the first 32 sectors for individual channels */
- for (i = 0; i < 32; i++) {
- if (get_buffer(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
- return AVERROR_IO;
-
-//printf("%02x %02x %02x %02x\n",sector[0x10],sector[0x11],sector[0x12],sector[0x13]);
-
- channel = sector[0x11];
- if (channel >= 32)
- return AVERROR_INVALIDDATA;
-
- switch (sector[0x12] & CDXA_TYPE_MASK) {
-
- case CDXA_TYPE_DATA:
- case CDXA_TYPE_VIDEO:
- /* check if this channel gets to be the dominant video channel */
- if (str->video_channel == -1) {
- /* qualify the magic number */
- if (AV_RL32(&sector[0x18]) != STR_MAGIC)
- break;
- str->video_channel = channel;
- str->channels[channel].type = STR_VIDEO;
- str->channels[channel].width = AV_RL16(&sector[0x28]);
- str->channels[channel].height = AV_RL16(&sector[0x2A]);
-
- /* allocate a new AVStream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 64, 1, 15);
-
- str->channels[channel].video_stream_index = st->index;
-
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_MDEC;
- st->codec->codec_tag = 0; /* no fourcc */
- st->codec->width = str->channels[channel].width;
- st->codec->height = str->channels[channel].height;
- }
- break;
-
- case CDXA_TYPE_AUDIO:
- /* check if this channel gets to be the dominant audio channel */
- if (str->audio_channel == -1) {
- int fmt;
- str->audio_channel = channel;
- str->channels[channel].type = STR_AUDIO;
- str->channels[channel].channels =
- (sector[0x13] & 0x01) ? 2 : 1;
- str->channels[channel].sample_rate =
- (sector[0x13] & 0x04) ? 18900 : 37800;
- str->channels[channel].bits =
- (sector[0x13] & 0x10) ? 8 : 4;
-
- /* allocate a new AVStream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 64, 128, str->channels[channel].sample_rate);
-
- str->channels[channel].audio_stream_index = st->index;
-
- fmt = sector[0x13];
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_ADPCM_XA;
- st->codec->codec_tag = 0; /* no fourcc */
- st->codec->channels = (fmt&1)?2:1;
- st->codec->sample_rate = (fmt&4)?18900:37800;
- // st->codec->bit_rate = 0; //FIXME;
- st->codec->block_align = 128;
- }
- break;
-
- default:
- /* ignore */
- break;
- }
- }
-
-if (str->video_channel != -1)
- av_log (s, AV_LOG_DEBUG, " video channel = %d, %d x %d %d\n", str->video_channel,
- str->channels[str->video_channel].width,
- str->channels[str->video_channel].height,str->channels[str->video_channel].video_stream_index);
-if (str->audio_channel != -1)
- av_log (s, AV_LOG_DEBUG, " audio channel = %d, %d Hz, %d channels, %d bits/sample %d\n",
- str->audio_channel,
- str->channels[str->audio_channel].sample_rate,
- str->channels[str->audio_channel].channels,
- str->channels[str->audio_channel].bits,str->channels[str->audio_channel].audio_stream_index);
-
- /* back to the start */
- url_fseek(pb, start, SEEK_SET);
-
- return 0;
-}
-
-static int str_read_packet(AVFormatContext *s,
- AVPacket *ret_pkt)
-{
- ByteIOContext *pb = &s->pb;
- StrDemuxContext *str = (StrDemuxContext *)s->priv_data;
- unsigned char sector[RAW_CD_SECTOR_SIZE];
- int channel;
- int packet_read = 0;
- int ret = 0;
- AVPacket *pkt;
-
- while (!packet_read) {
-
- if (get_buffer(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
- return AVERROR_IO;
-
- channel = sector[0x11];
- if (channel >= 32)
- return AVERROR_INVALIDDATA;
-
- switch (sector[0x12] & CDXA_TYPE_MASK) {
-
- case CDXA_TYPE_DATA:
- case CDXA_TYPE_VIDEO:
- /* check if this the video channel we care about */
- if (channel == str->video_channel) {
-
- int current_sector = AV_RL16(&sector[0x1C]);
- int sector_count = AV_RL16(&sector[0x1E]);
- int frame_size = AV_RL32(&sector[0x24]);
- int bytes_to_copy;
-// printf("%d %d %d\n",current_sector,sector_count,frame_size);
- /* if this is the first sector of the frame, allocate a pkt */
- pkt = &str->tmp_pkt;
- if (current_sector == 0) {
- if (av_new_packet(pkt, frame_size))
- return AVERROR_IO;
-
- pkt->pos= url_ftell(pb) - RAW_CD_SECTOR_SIZE;
- pkt->stream_index =
- str->channels[channel].video_stream_index;
- // pkt->pts = str->pts;
-
- /* if there is no audio, adjust the pts after every video
- * frame; assume 15 fps */
- if (str->audio_channel != -1)
- str->pts += (90000 / 15);
- }
-
- /* load all the constituent chunks in the video packet */
- bytes_to_copy = frame_size - current_sector*VIDEO_DATA_CHUNK_SIZE;
- if (bytes_to_copy>0) {
- if (bytes_to_copy>VIDEO_DATA_CHUNK_SIZE) bytes_to_copy=VIDEO_DATA_CHUNK_SIZE;
- memcpy(pkt->data + current_sector*VIDEO_DATA_CHUNK_SIZE,
- sector + VIDEO_DATA_HEADER_SIZE, bytes_to_copy);
- }
- if (current_sector == sector_count-1) {
- *ret_pkt = *pkt;
- return 0;
- }
-
- }
- break;
-
- case CDXA_TYPE_AUDIO:
-#ifdef PRINTSTUFF
-printf (" dropping audio sector\n");
-#endif
-#if 1
- /* check if this the video channel we care about */
- if (channel == str->audio_channel) {
- pkt = ret_pkt;
- if (av_new_packet(pkt, 2304))
- return AVERROR_IO;
- memcpy(pkt->data,sector+24,2304);
-
- pkt->stream_index =
- str->channels[channel].audio_stream_index;
- //pkt->pts = str->pts;
- return 0;
- }
-#endif
- break;
- default:
- /* drop the sector and move on */
-#ifdef PRINTSTUFF
-printf (" dropping other sector\n");
-#endif
- break;
- }
-
- if (url_feof(pb))
- return AVERROR_IO;
- }
-
- return ret;
-}
-
-static int str_read_close(AVFormatContext *s)
-{
- StrDemuxContext *str = (StrDemuxContext *)s->priv_data;
-
- av_free(str->video_chunk);
-
- return 0;
-}
-
-AVInputFormat str_demuxer = {
- "psxstr",
- "Sony Playstation STR format",
- sizeof(StrDemuxContext),
- str_probe,
- str_read_header,
- str_read_packet,
- str_read_close,
-};
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