* Sony Playstation (PSX) STR File Demuxer
* Copyright (c) 2003 The ffmpeg Project
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
//#define PRINTSTUFF
-#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
-#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
- (((uint8_t*)(x))[2] << 16) | \
- (((uint8_t*)(x))[1] << 8) | \
- ((uint8_t*)(x))[0])
-
-#define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \
- ( (long)(unsigned char)(ch0) | \
- ( (long)(unsigned char)(ch1) << 8 ) | \
- ( (long)(unsigned char)(ch2) << 16 ) | \
- ( (long)(unsigned char)(ch3) << 24 ) )
-
-#define RIFF_TAG FOURCC_TAG('R', 'I', 'F', 'F')
-#define CDXA_TAG FOURCC_TAG('C', 'D', 'X', 'A')
+#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
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;
if (p->buf_size < 0x38)
return 0;
- if ((LE_32(&p->buf[0]) == RIFF_TAG) &&
- (LE_32(&p->buf[8]) == CDXA_TAG)) {
+ 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;
start = 0;
/* look for CD sync header (00, 0xFF x 10, 00) */
- if ((p->buf[start + 0] != 0x00) || (p->buf[start + 1] != 0xFF) ||
- (p->buf[start + 2] != 0xFF) || (p->buf[start + 3] != 0xFF) ||
- (p->buf[start + 4] != 0xFF) || (p->buf[start + 5] != 0xFF) ||
- (p->buf[start + 6] != 0xFF) || (p->buf[start + 7] != 0xFF) ||
- (p->buf[start + 8] != 0xFF) || (p->buf[start + 9] != 0xFF) ||
- (p->buf[start + 10] != 0xFF) || (p->buf[start + 11] != 0x00))
+ if (memcmp(p->buf+start,sync_header,sizeof(sync_header)))
return 0;
/* MPEG files (like those ripped from VCDs) can also look like this;
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;
+ StrDemuxContext *str = s->priv_data;
AVStream *st;
unsigned char sector[RAW_CD_SECTOR_SIZE];
int start;
str->video_channel = -1;
str->video_chunk = NULL;
- /* set the pts reference (1 pts = 1/90000) */
- s->pts_num = 1;
- s->pts_den = 90000;
/* skip over any RIFF header */
if (get_buffer(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
- return AVERROR_IO;
- if (LE_32(§or[0]) == RIFF_TAG)
+ return AVERROR(EIO);
+ if (AV_RL32(§or[0]) == RIFF_TAG)
start = RIFF_HEADER_SIZE;
else
start = 0;
/* 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;
+ return AVERROR(EIO);
+
+//printf("%02x %02x %02x %02x\n",sector[0x10],sector[0x11],sector[0x12],sector[0x13]);
channel = sector[0x11];
if (channel >= 32)
/* check if this channel gets to be the dominant video channel */
if (str->video_channel == -1) {
/* qualify the magic number */
- if (LE_32(§or[0x18]) != STR_MAGIC)
+ if (AV_RL32(§or[0x18]) != STR_MAGIC)
break;
str->video_channel = channel;
str->channels[channel].type = STR_VIDEO;
- str->channels[channel].width = LE_16(§or[0x28]);
- str->channels[channel].height = LE_16(§or[0x2A]);
+ str->channels[channel].width = AV_RL16(§or[0x28]);
+ str->channels[channel].height = AV_RL16(§or[0x2A]);
/* allocate a new AVStream */
st = av_new_stream(s, 0);
if (!st)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
+ 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;
+ 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 =
+ str->channels[channel].channels =
(sector[0x13] & 0x01) ? 2 : 1;
- str->channels[channel].sample_rate =
+ str->channels[channel].sample_rate =
(sector[0x13] & 0x04) ? 18900 : 37800;
- str->channels[channel].bits =
+ str->channels[channel].bits =
(sector[0x13] & 0x10) ? 8 : 4;
+
+ /* allocate a new AVStream */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR(ENOMEM);
+ 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;
}
if (str->video_channel != -1)
- printf (" video channel = %d, %d x %d\n", str->video_channel,
+ 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].height,str->channels[str->video_channel].video_stream_index);
if (str->audio_channel != -1)
- printf (" audio channel = %d, %d Hz, %d channels, %d bits/sample\n",
- str->video_channel,
- str->channels[str->video_channel].sample_rate,
- str->channels[str->video_channel].channels,
- str->channels[str->video_channel].bits);
+ 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);
}
static int str_read_packet(AVFormatContext *s,
- AVPacket *pkt)
+ AVPacket *ret_pkt)
{
ByteIOContext *pb = &s->pb;
- StrDemuxContext *str = (StrDemuxContext *)s->priv_data;
+ StrDemuxContext *str = s->priv_data;
unsigned char sector[RAW_CD_SECTOR_SIZE];
int channel;
int packet_read = 0;
- int video_sector_count = 0;
- int current_video_sector = 0;
- int video_frame_size = 0;
- int video_frame_index = 0;
- int bytes_to_copy;
int ret = 0;
+ AVPacket *pkt;
while (!packet_read) {
if (get_buffer(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
- return -EIO;
+ return AVERROR(EIO);
channel = sector[0x11];
if (channel >= 32)
/* check if this the video channel we care about */
if (channel == str->video_channel) {
+ int current_sector = AV_RL16(§or[0x1C]);
+ int sector_count = AV_RL16(§or[0x1E]);
+ int frame_size = AV_RL32(§or[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 */
- if (current_video_sector == 0) {
- video_frame_size = LE_32(§or[0x24]);
- video_sector_count = LE_16(§or[0x1E]);
- if (av_new_packet(pkt, video_frame_size))
- return -EIO;
+ pkt = &str->tmp_pkt;
+ if (current_sector == 0) {
+ if (av_new_packet(pkt, frame_size))
+ return AVERROR(EIO);
- pkt->stream_index =
+ pkt->pos= url_ftell(pb) - RAW_CD_SECTOR_SIZE;
+ pkt->stream_index =
str->channels[channel].video_stream_index;
- pkt->pts = str->pts;
+ // pkt->pts = str->pts;
/* if there is no audio, adjust the pts after every video
* frame; assume 15 fps */
}
/* load all the constituent chunks in the video packet */
- if (video_frame_size - video_frame_index < VIDEO_DATA_CHUNK_SIZE)
- bytes_to_copy = video_frame_size - video_frame_index;
- else
- bytes_to_copy = VIDEO_DATA_CHUNK_SIZE;
- if (video_frame_index < video_frame_size)
- memcpy(&pkt->data[video_frame_index],
- §or[VIDEO_DATA_HEADER_SIZE], bytes_to_copy);
-
-#ifdef PRINTSTUFF
-printf (" chunk %d/%d (bytes %d/%d), first 6 bytes = %02X %02X %02X %02X %02X %02X\n",
- current_video_sector, video_sector_count,
- video_frame_index, video_frame_size,
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 0],
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 1],
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 2],
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 3],
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 4],
- pkt->data[current_video_sector * VIDEO_DATA_CHUNK_SIZE + 5]);
-#endif
-
- video_frame_index += bytes_to_copy;
- /* must keep reading sectors until all current video sectors
- * are consumed */
- current_video_sector++;
- if (current_video_sector >= video_sector_count)
- packet_read = 1;
+ 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;
#ifdef PRINTSTUFF
printf (" dropping audio sector\n");
#endif
- break;
+#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(EIO);
+ 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
}
if (url_feof(pb))
- return -EIO;
+ return AVERROR(EIO);
}
return ret;
static int str_read_close(AVFormatContext *s)
{
- StrDemuxContext *str = (StrDemuxContext *)s->priv_data;
+ StrDemuxContext *str = s->priv_data;
av_free(str->video_chunk);
return 0;
}
-static AVInputFormat str_iformat = {
+AVInputFormat str_demuxer = {
"psxstr",
"Sony Playstation STR format",
sizeof(StrDemuxContext),
str_read_packet,
str_read_close,
};
-
-int str_init(void)
-{
- av_register_input_format(&str_iformat);
- return 0;
-}
projects / ffmpeg / blobdiff