Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course.

CVS patchset: 8397
CVS date: 2006/12/02 01:19:48

1 files changed, 364 insertions, 0 deletions

diff --git a/contrib/ffmpeg/libavformat/psxstr.c b/contrib/ffmpeg/libavformat/psxstr.c
new file mode 100644
index 000000000..b03f65750
--- /dev/null
+++ b/contrib/ffmpeg/libavformat/psxstr.c
@@ -0,0 +1,364 @@
+/*
+ * 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 ((LE_32(&p->buf[0]) == RIFF_TAG) &&
+        (LE_32(&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 (LE_32(&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 (LE_32(&sector[0x18]) != STR_MAGIC)
+                    break;
+                str->video_channel = channel;
+                str->channels[channel].type = STR_VIDEO;
+                str->channels[channel].width = LE_16(&sector[0x28]);
+                str->channels[channel].height = LE_16(&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 = LE_16(&sector[0x1C]);
+                int sector_count   = LE_16(&sector[0x1E]);
+                int frame_size = LE_32(&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,
+};