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Directory:	../../../ffmpeg/
File:	src/libavformat/psxstr.c
Date:	2025-08-04 00:43:16

	Exec	Total	Coverage
Lines:	116	142	81.7%
Functions:	4	4	100.0%
Branches:	51	77	66.2%

  
      Line
      Branch
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      /*
    
       * 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/internal.h"
    
      #include "libavutil/intreadwrite.h"
    
      #include "avformat.h"
    
      #include "demux.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 CDXA_TYPE_EMPTY    0x00
    
      #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};
    
      7241
      static int str_probe(const AVProbeData *p)
    
      {
    
      7241
          const uint8_t *sector= p->buf;
    
      7241
          const uint8_t *end= sector + p->buf_size;
    
      7241
          int aud=0, vid=0;
    
        2/2✓ Branch 0 taken 4019 times.
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      7241
          if (p->buf_size < RAW_CD_SECTOR_SIZE)
    
      4019
              return 0;
    
        2/2✓ Branch 0 taken 6 times.
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      3222
          if ((AV_RL32(&p->buf[0]) == RIFF_TAG) &&
    
        1/2✓ Branch 0 taken 6 times.
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      6
              (AV_RL32(&p->buf[8]) == CDXA_TAG)) {
    
              /* RIFF header seen; skip 0x2C bytes */
    
      6
              sector += RIFF_HEADER_SIZE;
    
          }
    
        2/2✓ Branch 0 taken 3243 times.
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      3252
          while (end - sector >= RAW_CD_SECTOR_SIZE) {
    
              /* look for CD sync header (00, 0xFF x 10, 00) */
    
        2/2✓ Branch 0 taken 3213 times.
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      3243
              if (memcmp(sector,sync_header,sizeof(sync_header)))
    
      3213
                  return 0;
    
        1/2✗ Branch 0 not taken.
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      30
              if (sector[0x11] >= 32)
    
      ✗
                  return 0;
    
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      30
              switch (sector[0x12] & CDXA_TYPE_MASK) {
    
      30
              case CDXA_TYPE_DATA:
    
              case CDXA_TYPE_VIDEO: {
    
      30
                      int current_sector = AV_RL16(&sector[0x1C]);
    
      30
                      int sector_count   = AV_RL16(&sector[0x1E]);
    
      30
                      int frame_size = AV_RL32(&sector[0x24]);
    
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      30
                      if(!(   frame_size>=0
    
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      30
                           && current_sector < sector_count
    
        1/2✗ Branch 0 not taken.
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      30
                           && sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
    
      ✗
                          return 0;
    
                      }
    
      30
                      vid++;
    
                  }
    
      30
                  break;
    
      ✗
              case CDXA_TYPE_AUDIO:
    
      ✗
                  if(sector[0x13]&0x2A)
    
      ✗
                      return 0;
    
      ✗
                  aud++;
    
      ✗
                  break;
    
      ✗
              default:
    
      ✗
                  if(sector[0x12] & CDXA_TYPE_MASK)
    
      ✗
                      return 0;
    
              }
    
      30
              sector += RAW_CD_SECTOR_SIZE;
    
          }
    
          /* MPEG files (like those ripped from VCDs) can also look like this;
    
           * only return half certainty */
    
        2/2✓ Branch 0 taken 3 times.
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      9
          if(vid+aud > 3)  return AVPROBE_SCORE_EXTENSION;
    
        1/2✓ Branch 0 taken 6 times.
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      6
          else if(vid+aud) return 1;
    
      ✗
          else             return 0;
    
      }
    
      3
      static int str_read_header(AVFormatContext *s)
    
      {
    
      3
          AVIOContext *pb = s->pb;
    
      3
          StrDemuxContext *str = s->priv_data;
    
          unsigned char sector[RAW_CD_SECTOR_SIZE];
    
          int start;
    
          int i;
    
          /* skip over any RIFF header */
    
        1/2✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.

      3
          if (avio_read(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
    
      ✗
              return AVERROR(EIO);
    
        2/2✓ Branch 0 taken 2 times.
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      3
          if (AV_RL32(&sector[0]) == RIFF_TAG)
    
      2
              start = RIFF_HEADER_SIZE;
    
          else
    
      1
              start = 0;
    
      3
          avio_seek(pb, start, SEEK_SET);
    
        2/2✓ Branch 0 taken 96 times.
✓ Branch 1 taken 3 times.

      99
          for(i=0; i<32; i++){
    
      96
              str->channels[i].video_stream_index=
    
      96
              str->channels[i].audio_stream_index= -1;
    
          }
    
      3
          s->ctx_flags |= AVFMTCTX_NOHEADER;
    
      3
          return 0;
    
      }
    
      397
      static int str_read_packet(AVFormatContext *s,
    
                                 AVPacket *ret_pkt)
    
      {
    
      397
          AVIOContext *pb = s->pb;
    
      397
          StrDemuxContext *str = s->priv_data;
    
          unsigned char sector[RAW_CD_SECTOR_SIZE];
    
          int channel, ret;
    
          AVPacket *pkt;
    
          AVStream *st;
    
      1093
          while (1) {
    
      1490
              int read = avio_read(pb, sector, RAW_CD_SECTOR_SIZE);
    
        2/2✓ Branch 0 taken 2 times.
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      1490
              if (read == AVERROR_EOF)
    
      2
                  return AVERROR_EOF;
    
        2/2✓ Branch 0 taken 3 times.
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      1488
              if (read != RAW_CD_SECTOR_SIZE)
    
      3
                  return AVERROR(EIO);
    
      1485
              channel = sector[0x11];
    
        1/2✗ Branch 0 not taken.
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      1485
              if (channel >= 32)
    
      ✗
                  return AVERROR_INVALIDDATA;
    
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      1485
              switch (sector[0x12] & CDXA_TYPE_MASK) {
    
      1300
              case CDXA_TYPE_DATA:
    
              case CDXA_TYPE_VIDEO:
    
                  {
    
      1300
                      int current_sector = AV_RL16(&sector[0x1C]);
    
      1300
                      int sector_count   = AV_RL16(&sector[0x1E]);
    
      1300
                      int frame_size = AV_RL32(&sector[0x24]);
    
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      1300
                      if(!(   frame_size>=0
    
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      1300
                           && current_sector < sector_count
    
        1/2✗ Branch 0 not taken.
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      1300
                           && 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;
    
                      }
    
        2/2✓ Branch 0 taken 3 times.
✓ Branch 1 taken 1297 times.

      1300
                      if(str->channels[channel].video_stream_index < 0){
    
                          /* allocate a new AVStream */
    
      3
                          st = avformat_new_stream(s, NULL);
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.

      3
                          if (!st)
    
      ✗
                              return AVERROR(ENOMEM);
    
      3
                          avpriv_set_pts_info(st, 64, 1, 15);
    
      3
                          str->channels[channel].video_stream_index = st->index;
    
      3
                          st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
    
      3
                          st->codecpar->codec_id   = AV_CODEC_ID_MDEC;
    
      3
                          st->codecpar->codec_tag  = 0;  /* no fourcc */
    
      3
                          st->codecpar->width      = AV_RL16(&sector[0x28]);
    
      3
                          st->codecpar->height     = AV_RL16(&sector[0x2A]);
    
                      }
    
                      /* if this is the first sector of the frame, allocate a pkt */
    
      1300
                      pkt = &str->channels[channel].tmp_pkt;
    
        2/2✓ Branch 0 taken 210 times.
✓ Branch 1 taken 1090 times.

      1300
                      if(pkt->size != sector_count*VIDEO_DATA_CHUNK_SIZE){
    
        1/2✗ Branch 0 not taken.
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      210
                          if(pkt->data)
    
      ✗
                              av_log(s, AV_LOG_ERROR, "mismatching sector_count\n");
    
      210
                          av_packet_unref(pkt);
    
      210
                          ret = av_new_packet(pkt, sector_count * VIDEO_DATA_CHUNK_SIZE);
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 210 times.

      210
                          if (ret < 0)
    
      ✗
                              return ret;
    
      210
                          memset(pkt->data, 0, sector_count*VIDEO_DATA_CHUNK_SIZE);
    
      210
                          pkt->pos= avio_tell(pb) - RAW_CD_SECTOR_SIZE;
    
      210
                          pkt->stream_index =
    
      210
                              str->channels[channel].video_stream_index;
    
                      }
    
      1300
                      memcpy(pkt->data + current_sector*VIDEO_DATA_CHUNK_SIZE,
    
                             sector + VIDEO_DATA_HEADER_SIZE,
    
                             VIDEO_DATA_CHUNK_SIZE);
    
        2/2✓ Branch 0 taken 207 times.
✓ Branch 1 taken 1093 times.

      1300
                      if (current_sector == sector_count-1) {
    
      207
                          pkt->size= frame_size;
    
      207
                          *ret_pkt = *pkt;
    
      207
                          pkt->data= NULL;
    
      207
                          pkt->size= -1;
    
      207
                          pkt->buf = NULL;
    
      207
                          return 0;
    
                      }
    
                  }
    
      1093
                  break;
    
      185
              case CDXA_TYPE_AUDIO:
    
        2/2✓ Branch 0 taken 3 times.
✓ Branch 1 taken 182 times.

      185
                  if(str->channels[channel].audio_stream_index < 0){
    
      3
                      int fmt = sector[0x13];
    
                      /* allocate a new AVStream */
    
      3
                      st = avformat_new_stream(s, NULL);
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.

      3
                      if (!st)
    
      ✗
                          return AVERROR(ENOMEM);
    
      3
                      str->channels[channel].audio_stream_index = st->index;
    
      3
                      st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
    
      3
                      st->codecpar->codec_id    = AV_CODEC_ID_ADPCM_XA;
    
      3
                      st->codecpar->codec_tag   = 0;  /* no fourcc */
    
      3
                      av_channel_layout_default(&st->codecpar->ch_layout, (fmt & 1) + 1);
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.

      3
                      st->codecpar->sample_rate = (fmt&4)?18900:37800;
    
                  //    st->codecpar->bit_rate = 0; //FIXME;
    
      3
                      st->codecpar->block_align = 128;
    
      3
                      avpriv_set_pts_info(st, 64, 18 * 224 / st->codecpar->ch_layout.nb_channels,
    
      3
                                          st->codecpar->sample_rate);
    
      3
                      st->start_time = 0;
    
                  }
    
      185
                  pkt = ret_pkt;
    
        1/2✗ Branch 1 not taken.
✓ Branch 2 taken 185 times.

      185
                  if ((ret = av_new_packet(pkt, 2304)) < 0)
    
      ✗
                      return ret;
    
      185
                  memcpy(pkt->data,sector+24,2304);
    
      185
                  pkt->stream_index =
    
      185
                      str->channels[channel].audio_stream_index;
    
      185
                  pkt->duration = 1;
    
      185
                  return 0;
    
      ✗
              case CDXA_TYPE_EMPTY: /* CD-ROM XA, May 1991, 4.3.2.3 */
    
                  /* NOTE this also catches 0x80 (EOF bit) because of CDXA_TYPE_MASK */
    
                  /* TODO consider refactoring so as to explicitly handle each case? */
    
      ✗
                  break;
    
      ✗
              default:
    
      ✗
                  av_log(s, AV_LOG_WARNING, "Unknown sector type %02X\n", sector[0x12]);
    
                  /* drop the sector and move on */
    
      ✗
                  break;
    
              }
    
        1/2✗ Branch 1 not taken.
✓ Branch 2 taken 1093 times.

      1093
              if (avio_feof(pb))
    
      ✗
                  return AVERROR(EIO);
    
          }
    
      }
    
      3
      static int str_read_close(AVFormatContext *s)
    
      {
    
      3
          StrDemuxContext *str = s->priv_data;
    
          int i;
    
        2/2✓ Branch 0 taken 96 times.
✓ Branch 1 taken 3 times.

      99
          for(i=0; i<32; i++){
    
        2/2✓ Branch 0 taken 3 times.
✓ Branch 1 taken 93 times.

      96
              if(str->channels[i].tmp_pkt.data)
    
      3
                  av_packet_unref(&str->channels[i].tmp_pkt);
    
          }
    
      3
          return 0;
    
      }
    
      const FFInputFormat ff_str_demuxer = {
    
          .p.name         = "psxstr",
    
          .p.long_name    = NULL_IF_CONFIG_SMALL("Sony Playstation STR"),
    
          .p.flags        = AVFMT_NO_BYTE_SEEK,
    
          .priv_data_size = sizeof(StrDemuxContext),
    
          .read_probe     = str_probe,
    
          .read_header    = str_read_header,
    
          .read_packet    = str_read_packet,
    
          .read_close     = str_read_close,
    
      };

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Line	Branch	Exec	Source
1			/*
2			* Sony Playstation (PSX) STR File Demuxer
3			* Copyright (c) 2003 The FFmpeg project
4			*
5			* This file is part of FFmpeg.
6			*
7			* FFmpeg is free software; you can redistribute it and/or
8			* modify it under the terms of the GNU Lesser General Public
9			* License as published by the Free Software Foundation; either
10			* version 2.1 of the License, or (at your option) any later version.
11			*
12			* FFmpeg is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			* Lesser General Public License for more details.
16			*
17			* You should have received a copy of the GNU Lesser General Public
18			* License along with FFmpeg; if not, write to the Free Software
19			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20			*/
21
22			/**
23			* @file
24			* PSX STR file demuxer
25			* by Mike Melanson (melanson@pcisys.net)
26			* This module handles streams that have been ripped from Sony Playstation
27			* CD games. This demuxer can handle either raw STR files (which are just
28			* concatenations of raw compact disc sectors) or STR files with 0x2C-byte
29			* RIFF headers, followed by CD sectors.
30			*/
31
32			#include "libavutil/channel_layout.h"
33			#include "libavutil/internal.h"
34			#include "libavutil/intreadwrite.h"
35			#include "avformat.h"
36			#include "demux.h"
37			#include "internal.h"
38
39			#define RIFF_TAG MKTAG('R', 'I', 'F', 'F')
40			#define CDXA_TAG MKTAG('C', 'D', 'X', 'A')
41
42			#define RAW_CD_SECTOR_SIZE 2352
43			#define RAW_CD_SECTOR_DATA_SIZE 2304
44			#define VIDEO_DATA_CHUNK_SIZE 0x7E0
45			#define VIDEO_DATA_HEADER_SIZE 0x38
46			#define RIFF_HEADER_SIZE 0x2C
47
48			#define CDXA_TYPE_MASK 0x0E
49			#define CDXA_TYPE_DATA 0x08
50			#define CDXA_TYPE_AUDIO 0x04
51			#define CDXA_TYPE_VIDEO 0x02
52			#define CDXA_TYPE_EMPTY 0x00
53
54			#define STR_MAGIC (0x80010160)
55
56			typedef struct StrChannel {
57			/* video parameters */
58			int video_stream_index;
59			AVPacket tmp_pkt;
60
61			/* audio parameters */
62			int audio_stream_index;
63			} StrChannel;
64
65			typedef struct StrDemuxContext {
66
67			/* a STR file can contain up to 32 channels of data */
68			StrChannel channels[32];
69			} StrDemuxContext;
70
71			static const uint8_t sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00};
72
73		7241	static int str_probe(const AVProbeData *p)
74			{
75		7241	const uint8_t *sector= p->buf;
76		7241	const uint8_t *end= sector + p->buf_size;
77		7241	int aud=0, vid=0;
78
79	2/2 ✓ Branch 0 taken 4019 times. ✓ Branch 1 taken 3222 times.	7241	if (p->buf_size < RAW_CD_SECTOR_SIZE)
80		4019	return 0;
81
82	2/2 ✓ Branch 0 taken 6 times. ✓ Branch 1 taken 3216 times.	3222	if ((AV_RL32(&p->buf[0]) == RIFF_TAG) &&
83	1/2 ✓ Branch 0 taken 6 times. ✗ Branch 1 not taken.	6	(AV_RL32(&p->buf[8]) == CDXA_TAG)) {
84
85			/* RIFF header seen; skip 0x2C bytes */
86		6	sector += RIFF_HEADER_SIZE;
87			}
88
89	2/2 ✓ Branch 0 taken 3243 times. ✓ Branch 1 taken 9 times.	3252	while (end - sector >= RAW_CD_SECTOR_SIZE) {
90			/* look for CD sync header (00, 0xFF x 10, 00) */
91	2/2 ✓ Branch 0 taken 3213 times. ✓ Branch 1 taken 30 times.	3243	if (memcmp(sector,sync_header,sizeof(sync_header)))
92		3213	return 0;
93
94	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 30 times.	30	if (sector[0x11] >= 32)
95		✗	return 0;
96
97	1/3 ✓ Branch 0 taken 30 times. ✗ Branch 1 not taken. ✗ Branch 2 not taken.	30	switch (sector[0x12] & CDXA_TYPE_MASK) {
98		30	case CDXA_TYPE_DATA:
99			case CDXA_TYPE_VIDEO: {
100		30	int current_sector = AV_RL16(&sector[0x1C]);
101		30	int sector_count = AV_RL16(&sector[0x1E]);
102		30	int frame_size = AV_RL32(&sector[0x24]);
103
104	1/2 ✓ Branch 0 taken 30 times. ✗ Branch 1 not taken.	30	if(!( frame_size>=0
105	1/2 ✓ Branch 0 taken 30 times. ✗ Branch 1 not taken.	30	&& current_sector < sector_count
106	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 30 times.	30	&& sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
107		✗	return 0;
108			}
109		30	vid++;
110
111			}
112		30	break;
113		✗	case CDXA_TYPE_AUDIO:
114		✗	if(sector[0x13]&0x2A)
115		✗	return 0;
116		✗	aud++;
117		✗	break;
118		✗	default:
119		✗	if(sector[0x12] & CDXA_TYPE_MASK)
120		✗	return 0;
121			}
122		30	sector += RAW_CD_SECTOR_SIZE;
123			}
124			/* MPEG files (like those ripped from VCDs) can also look like this;
125			* only return half certainty */
126	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 6 times.	9	if(vid+aud > 3) return AVPROBE_SCORE_EXTENSION;
127	1/2 ✓ Branch 0 taken 6 times. ✗ Branch 1 not taken.	6	else if(vid+aud) return 1;
128		✗	else return 0;
129			}
130
131		3	static int str_read_header(AVFormatContext *s)
132			{
133		3	AVIOContext *pb = s->pb;
134		3	StrDemuxContext *str = s->priv_data;
135			unsigned char sector[RAW_CD_SECTOR_SIZE];
136			int start;
137			int i;
138
139			/* skip over any RIFF header */
140	1/2 ✗ Branch 1 not taken. ✓ Branch 2 taken 3 times.	3	if (avio_read(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
141		✗	return AVERROR(EIO);
142	2/2 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 1 times.	3	if (AV_RL32(&sector[0]) == RIFF_TAG)
143		2	start = RIFF_HEADER_SIZE;
144			else
145		1	start = 0;
146
147		3	avio_seek(pb, start, SEEK_SET);
148
149	2/2 ✓ Branch 0 taken 96 times. ✓ Branch 1 taken 3 times.	99	for(i=0; i<32; i++){
150		96	str->channels[i].video_stream_index=
151		96	str->channels[i].audio_stream_index= -1;
152			}
153
154		3	s->ctx_flags \|= AVFMTCTX_NOHEADER;
155
156		3	return 0;
157			}
158
159		397	static int str_read_packet(AVFormatContext *s,
160			AVPacket *ret_pkt)
161			{
162		397	AVIOContext *pb = s->pb;
163		397	StrDemuxContext *str = s->priv_data;
164			unsigned char sector[RAW_CD_SECTOR_SIZE];
165			int channel, ret;
166			AVPacket *pkt;
167			AVStream *st;
168
169		1093	while (1) {
170		1490	int read = avio_read(pb, sector, RAW_CD_SECTOR_SIZE);
171
172	2/2 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 1488 times.	1490	if (read == AVERROR_EOF)
173		2	return AVERROR_EOF;
174
175	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 1485 times.	1488	if (read != RAW_CD_SECTOR_SIZE)
176		3	return AVERROR(EIO);
177
178		1485	channel = sector[0x11];
179	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 1485 times.	1485	if (channel >= 32)
180		✗	return AVERROR_INVALIDDATA;
181
182	2/4 ✓ Branch 0 taken 1300 times. ✓ Branch 1 taken 185 times. ✗ Branch 2 not taken. ✗ Branch 3 not taken.	1485	switch (sector[0x12] & CDXA_TYPE_MASK) {
183
184		1300	case CDXA_TYPE_DATA:
185			case CDXA_TYPE_VIDEO:
186			{
187
188		1300	int current_sector = AV_RL16(&sector[0x1C]);
189		1300	int sector_count = AV_RL16(&sector[0x1E]);
190		1300	int frame_size = AV_RL32(&sector[0x24]);
191
192	1/2 ✓ Branch 0 taken 1300 times. ✗ Branch 1 not taken.	1300	if(!( frame_size>=0
193	1/2 ✓ Branch 0 taken 1300 times. ✗ Branch 1 not taken.	1300	&& current_sector < sector_count
194	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 1300 times.	1300	&& sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
195		✗	av_log(s, AV_LOG_ERROR, "Invalid parameters %d %d %d\n", current_sector, sector_count, frame_size);
196		✗	break;
197			}
198
199	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 1297 times.	1300	if(str->channels[channel].video_stream_index < 0){
200			/* allocate a new AVStream */
201		3	st = avformat_new_stream(s, NULL);
202	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 3 times.	3	if (!st)
203		✗	return AVERROR(ENOMEM);
204		3	avpriv_set_pts_info(st, 64, 1, 15);
205
206		3	str->channels[channel].video_stream_index = st->index;
207
208		3	st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
209		3	st->codecpar->codec_id = AV_CODEC_ID_MDEC;
210		3	st->codecpar->codec_tag = 0; /* no fourcc */
211		3	st->codecpar->width = AV_RL16(&sector[0x28]);
212		3	st->codecpar->height = AV_RL16(&sector[0x2A]);
213			}
214
215			/* if this is the first sector of the frame, allocate a pkt */
216		1300	pkt = &str->channels[channel].tmp_pkt;
217
218	2/2 ✓ Branch 0 taken 210 times. ✓ Branch 1 taken 1090 times.	1300	if(pkt->size != sector_count*VIDEO_DATA_CHUNK_SIZE){
219	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 210 times.	210	if(pkt->data)
220		✗	av_log(s, AV_LOG_ERROR, "mismatching sector_count\n");
221		210	av_packet_unref(pkt);
222		210	ret = av_new_packet(pkt, sector_count * VIDEO_DATA_CHUNK_SIZE);
223	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 210 times.	210	if (ret < 0)
224		✗	return ret;
225		210	memset(pkt->data, 0, sector_count*VIDEO_DATA_CHUNK_SIZE);
226
227		210	pkt->pos= avio_tell(pb) - RAW_CD_SECTOR_SIZE;
228		210	pkt->stream_index =
229		210	str->channels[channel].video_stream_index;
230			}
231
232		1300	memcpy(pkt->data + current_sector*VIDEO_DATA_CHUNK_SIZE,
233			sector + VIDEO_DATA_HEADER_SIZE,
234			VIDEO_DATA_CHUNK_SIZE);
235
236	2/2 ✓ Branch 0 taken 207 times. ✓ Branch 1 taken 1093 times.	1300	if (current_sector == sector_count-1) {
237		207	pkt->size= frame_size;
238		207	ret_pkt = pkt;
239		207	pkt->data= NULL;
240		207	pkt->size= -1;
241		207	pkt->buf = NULL;
242		207	return 0;
243			}
244
245			}
246		1093	break;
247
248		185	case CDXA_TYPE_AUDIO:
249	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 182 times.	185	if(str->channels[channel].audio_stream_index < 0){
250		3	int fmt = sector[0x13];
251			/* allocate a new AVStream */
252		3	st = avformat_new_stream(s, NULL);
253	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 3 times.	3	if (!st)
254		✗	return AVERROR(ENOMEM);
255
256		3	str->channels[channel].audio_stream_index = st->index;
257
258		3	st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
259		3	st->codecpar->codec_id = AV_CODEC_ID_ADPCM_XA;
260		3	st->codecpar->codec_tag = 0; /* no fourcc */
261		3	av_channel_layout_default(&st->codecpar->ch_layout, (fmt & 1) + 1);
262	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 3 times.	3	st->codecpar->sample_rate = (fmt&4)?18900:37800;
263			// st->codecpar->bit_rate = 0; //FIXME;
264		3	st->codecpar->block_align = 128;
265
266		3	avpriv_set_pts_info(st, 64, 18 * 224 / st->codecpar->ch_layout.nb_channels,
267		3	st->codecpar->sample_rate);
268		3	st->start_time = 0;
269			}
270		185	pkt = ret_pkt;
271	1/2 ✗ Branch 1 not taken. ✓ Branch 2 taken 185 times.	185	if ((ret = av_new_packet(pkt, 2304)) < 0)
272		✗	return ret;
273		185	memcpy(pkt->data,sector+24,2304);
274
275		185	pkt->stream_index =
276		185	str->channels[channel].audio_stream_index;
277		185	pkt->duration = 1;
278		185	return 0;
279		✗	case CDXA_TYPE_EMPTY: /* CD-ROM XA, May 1991, 4.3.2.3 */
280			/* NOTE this also catches 0x80 (EOF bit) because of CDXA_TYPE_MASK */
281			/* TODO consider refactoring so as to explicitly handle each case? */
282		✗	break;
283		✗	default:
284		✗	av_log(s, AV_LOG_WARNING, "Unknown sector type %02X\n", sector[0x12]);
285			/* drop the sector and move on */
286		✗	break;
287			}
288
289	1/2 ✗ Branch 1 not taken. ✓ Branch 2 taken 1093 times.	1093	if (avio_feof(pb))
290		✗	return AVERROR(EIO);
291			}
292			}
293
294		3	static int str_read_close(AVFormatContext *s)
295			{
296		3	StrDemuxContext *str = s->priv_data;
297			int i;
298	2/2 ✓ Branch 0 taken 96 times. ✓ Branch 1 taken 3 times.	99	for(i=0; i<32; i++){
299	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 93 times.	96	if(str->channels[i].tmp_pkt.data)
300		3	av_packet_unref(&str->channels[i].tmp_pkt);
301			}
302
303		3	return 0;
304			}
305
306			const FFInputFormat ff_str_demuxer = {
307			.p.name = "psxstr",
308			.p.long_name = NULL_IF_CONFIG_SMALL("Sony Playstation STR"),
309			.p.flags = AVFMT_NO_BYTE_SEEK,
310			.priv_data_size = sizeof(StrDemuxContext),
311			.read_probe = str_probe,
312			.read_header = str_read_header,
313			.read_packet = str_read_packet,
314			.read_close = str_read_close,
315			};
316

Function (Line)	Call count	Block coverage
str_probe (line 73)	called 7241 times, returned 7241 times	72.0%
str_read_close (line 294)	called 3 times, returned 3 times	100.0%
str_read_header (line 131)	called 3 times, returned 3 times	92.0%
str_read_packet (line 159)	called 397 times, returned 397 times	76.0%