FFmpeg coverage

Directory:	../../../ffmpeg/
File:	src/libavformat/id3v1.c
Date:	2025-10-25 08:50:29

	Exec	Total	Coverage
Lines:	45	47	95.7%
Functions:	3	3	100.0%
Branches:	23	32	71.9%

  
      Line
      Branch
      Exec
      Source
    
      /*
    
       * ID3v1 header parser
    
       * Copyright (c) 2003 Fabrice Bellard
    
       *
    
       * 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
    
       */
    
      #include "id3v1.h"
    
      #include "libavutil/dict.h"
    
      /* See Genre List at http://id3.org/id3v2.3.0 */
    
      const char * const ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1] = {
    
            [0] = "Blues",
    
            [1] = "Classic Rock",
    
            [2] = "Country",
    
            [3] = "Dance",
    
            [4] = "Disco",
    
            [5] = "Funk",
    
            [6] = "Grunge",
    
            [7] = "Hip-Hop",
    
            [8] = "Jazz",
    
            [9] = "Metal",
    
           [10] = "New Age",
    
           [11] = "Oldies",
    
           [12] = "Other",
    
           [13] = "Pop",
    
           [14] = "R&B",
    
           [15] = "Rap",
    
           [16] = "Reggae",
    
           [17] = "Rock",
    
           [18] = "Techno",
    
           [19] = "Industrial",
    
           [20] = "Alternative",
    
           [21] = "Ska",
    
           [22] = "Death Metal",
    
           [23] = "Pranks",
    
           [24] = "Soundtrack",
    
           [25] = "Euro-Techno",
    
           [26] = "Ambient",
    
           [27] = "Trip-Hop",
    
           [28] = "Vocal",
    
           [29] = "Jazz+Funk",
    
           [30] = "Fusion",
    
           [31] = "Trance",
    
           [32] = "Classical",
    
           [33] = "Instrumental",
    
           [34] = "Acid",
    
           [35] = "House",
    
           [36] = "Game",
    
           [37] = "Sound Clip",
    
           [38] = "Gospel",
    
           [39] = "Noise",
    
           [40] = "AlternRock",
    
           [41] = "Bass",
    
           [42] = "Soul",
    
           [43] = "Punk",
    
           [44] = "Space",
    
           [45] = "Meditative",
    
           [46] = "Instrumental Pop",
    
           [47] = "Instrumental Rock",
    
           [48] = "Ethnic",
    
           [49] = "Gothic",
    
           [50] = "Darkwave",
    
           [51] = "Techno-Industrial",
    
           [52] = "Electronic",
    
           [53] = "Pop-Folk",
    
           [54] = "Eurodance",
    
           [55] = "Dream",
    
           [56] = "Southern Rock",
    
           [57] = "Comedy",
    
           [58] = "Cult",
    
           [59] = "Gangsta",
    
           [60] = "Top 40",
    
           [61] = "Christian Rap",
    
           [62] = "Pop/Funk",
    
           [63] = "Jungle",
    
           [64] = "Native American",
    
           [65] = "Cabaret",
    
           [66] = "New Wave",
    
           [67] = "Psychedelic",
    
           [68] = "Rave",
    
           [69] = "Showtunes",
    
           [70] = "Trailer",
    
           [71] = "Lo-Fi",
    
           [72] = "Tribal",
    
           [73] = "Acid Punk",
    
           [74] = "Acid Jazz",
    
           [75] = "Polka",
    
           [76] = "Retro",
    
           [77] = "Musical",
    
           [78] = "Rock & Roll",
    
           [79] = "Hard Rock",
    
           [80] = "Folk",
    
           [81] = "Folk-Rock",
    
           [82] = "National Folk",
    
           [83] = "Swing",
    
           [84] = "Fast Fusion",
    
           [85] = "Bebop",
    
           [86] = "Latin",
    
           [87] = "Revival",
    
           [88] = "Celtic",
    
           [89] = "Bluegrass",
    
           [90] = "Avantgarde",
    
           [91] = "Gothic Rock",
    
           [92] = "Progressive Rock",
    
           [93] = "Psychedelic Rock",
    
           [94] = "Symphonic Rock",
    
           [95] = "Slow Rock",
    
           [96] = "Big Band",
    
           [97] = "Chorus",
    
           [98] = "Easy Listening",
    
           [99] = "Acoustic",
    
          [100] = "Humour",
    
          [101] = "Speech",
    
          [102] = "Chanson",
    
          [103] = "Opera",
    
          [104] = "Chamber Music",
    
          [105] = "Sonata",
    
          [106] = "Symphony",
    
          [107] = "Booty Bass",
    
          [108] = "Primus",
    
          [109] = "Porn Groove",
    
          [110] = "Satire",
    
          [111] = "Slow Jam",
    
          [112] = "Club",
    
          [113] = "Tango",
    
          [114] = "Samba",
    
          [115] = "Folklore",
    
          [116] = "Ballad",
    
          [117] = "Power Ballad",
    
          [118] = "Rhythmic Soul",
    
          [119] = "Freestyle",
    
          [120] = "Duet",
    
          [121] = "Punk Rock",
    
          [122] = "Drum Solo",
    
          [123] = "A Cappella",
    
          [124] = "Euro-House",
    
          [125] = "Dance Hall",
    
          [126] = "Goa",
    
          [127] = "Drum & Bass",
    
          [128] = "Club-House",
    
          [129] = "Hardcore Techno",
    
          [130] = "Terror",
    
          [131] = "Indie",
    
          [132] = "BritPop",
    
          [133] = "Negerpunk",
    
          [134] = "Polsk Punk",
    
          [135] = "Beat",
    
          [136] = "Christian Gangsta Rap",
    
          [137] = "Heavy Metal",
    
          [138] = "Black Metal",
    
          [139] = "Crossover",
    
          [140] = "Contemporary Christian",
    
          [141] = "Christian Rock",
    
          [142] = "Merengue",
    
          [143] = "Salsa",
    
          [144] = "Thrash Metal",
    
          [145] = "Anime",
    
          [146] = "Jpop",
    
          [147] = "Synthpop",
    
          [148] = "Abstract",
    
          [149] = "Art Rock",
    
          [150] = "Baroque",
    
          [151] = "Bhangra",
    
          [152] = "Big Beat",
    
          [153] = "Breakbeat",
    
          [154] = "Chillout",
    
          [155] = "Downtempo",
    
          [156] = "Dub",
    
          [157] = "EBM",
    
          [158] = "Eclectic",
    
          [159] = "Electro",
    
          [160] = "Electroclash",
    
          [161] = "Emo",
    
          [162] = "Experimental",
    
          [163] = "Garage",
    
          [164] = "Global",
    
          [165] = "IDM",
    
          [166] = "Illbient",
    
          [167] = "Industro-Goth",
    
          [168] = "Jam Band",
    
          [169] = "Krautrock",
    
          [170] = "Leftfield",
    
          [171] = "Lounge",
    
          [172] = "Math Rock",
    
          [173] = "New Romantic",
    
          [174] = "Nu-Breakz",
    
          [175] = "Post-Punk",
    
          [176] = "Post-Rock",
    
          [177] = "Psytrance",
    
          [178] = "Shoegaze",
    
          [179] = "Space Rock",
    
          [180] = "Trop Rock",
    
          [181] = "World Music",
    
          [182] = "Neoclassical",
    
          [183] = "Audiobook",
    
          [184] = "Audio Theatre",
    
          [185] = "Neue Deutsche Welle",
    
          [186] = "Podcast",
    
          [187] = "Indie Rock",
    
          [188] = "G-Funk",
    
          [189] = "Dubstep",
    
          [190] = "Garage Rock",
    
          [191] = "Psybient"
    
      };
    
      5
      static void get_string(AVFormatContext *s, const char *key,
    
                             const uint8_t *buf, int buf_size)
    
      {
    
          int i, c;
    
      5
          char *q, str[512], *first_free_space = NULL;
    
      5
          q = str;
    
        2/2✓ Branch 0 taken 95 times.
✓ Branch 1 taken 4 times.

      99
          for(i = 0; i < buf_size; i++) {
    
      95
              c = buf[i];
    
        2/2✓ Branch 0 taken 1 times.
✓ Branch 1 taken 94 times.

      95
              if (c == '\0')
    
      1
                  break;
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 94 times.

      94
              if ((q - str) >= sizeof(str) - 1)
    
      ✗
                  break;
    
        2/2✓ Branch 0 taken 83 times.
✓ Branch 1 taken 11 times.

      94
              if (c == ' ') {
    
        2/2✓ Branch 0 taken 4 times.
✓ Branch 1 taken 79 times.

      83
                  if (!first_free_space)
    
      4
                      first_free_space = q;
    
              } else {
    
      11
                  first_free_space = NULL;
    
              }
    
      94
              *q++ = c;
    
          }
    
      5
          *q = '\0';
    
        2/2✓ Branch 0 taken 4 times.
✓ Branch 1 taken 1 times.

      5
          if (first_free_space)
    
      4
              *first_free_space = '\0';
    
        2/2✓ Branch 0 taken 2 times.
✓ Branch 1 taken 3 times.

      5
          if (*str)
    
      2
              av_dict_set(&s->metadata, key, str, 0);
    
      5
      }
    
      /**
    
       * Parse an ID3v1 tag
    
       *
    
       * @param buf ID3v1_TAG_SIZE long buffer containing the tag
    
       */
    
      78
      static int parse_tag(AVFormatContext *s, const uint8_t *buf)
    
      {
    
          int genre;
    
        2/2✓ Branch 0 taken 1 times.
✓ Branch 1 taken 77 times.

      78
          if (!(buf[0] == 'T' &&
    
        1/2✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.

      1
                buf[1] == 'A' &&
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.

      1
                buf[2] == 'G'))
    
      77
              return -1;
    
      1
          get_string(s, "title",   buf +  3, 30);
    
      1
          get_string(s, "artist",  buf + 33, 30);
    
      1
          get_string(s, "album",   buf + 63, 30);
    
      1
          get_string(s, "date",    buf + 93,  4);
    
      1
          get_string(s, "comment", buf + 97, 30);
    
        2/4✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1 times.

      1
          if (buf[125] == 0 && buf[126] != 0) {
    
      ✗
              av_dict_set_int(&s->metadata, "track", buf[126], 0);
    
          }
    
      1
          genre = buf[127];
    
        1/2✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.

      1
          if (genre <= ID3v1_GENRE_MAX)
    
      1
              av_dict_set(&s->metadata, "genre", ff_id3v1_genre_str[genre], 0);
    
      1
          return 0;
    
      }
    
      78
      void ff_id3v1_read(AVFormatContext *s)
    
      {
    
          int ret;
    
          uint8_t buf[ID3v1_TAG_SIZE];
    
      78
          int64_t filesize, position = avio_tell(s->pb);
    
        1/2✓ Branch 0 taken 78 times.
✗ Branch 1 not taken.

      78
          if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
    
              /* XXX: change that */
    
      78
              filesize = avio_size(s->pb);
    
        1/2✓ Branch 0 taken 78 times.
✗ Branch 1 not taken.

      78
              if (filesize > 128) {
    
      78
                  avio_seek(s->pb, filesize - 128, SEEK_SET);
    
      78
                  ret = avio_read(s->pb, buf, ID3v1_TAG_SIZE);
    
        1/2✓ Branch 0 taken 78 times.
✗ Branch 1 not taken.

      78
                  if (ret == ID3v1_TAG_SIZE) {
    
      78
                      parse_tag(s, buf);
    
                  }
    
      78
                  avio_seek(s->pb, position, SEEK_SET);
    
              }
    
          }
    
      78
      }

Line	Branch	Exec	Source
1			/*
2			* ID3v1 header parser
3			* Copyright (c) 2003 Fabrice Bellard
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			#include "id3v1.h"
23			#include "libavutil/dict.h"
24
25			/* See Genre List at http://id3.org/id3v2.3.0 */
26			const char * const ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1] = {
27			[0] = "Blues",
28			[1] = "Classic Rock",
29			[2] = "Country",
30			[3] = "Dance",
31			[4] = "Disco",
32			[5] = "Funk",
33			[6] = "Grunge",
34			[7] = "Hip-Hop",
35			[8] = "Jazz",
36			[9] = "Metal",
37			[10] = "New Age",
38			[11] = "Oldies",
39			[12] = "Other",
40			[13] = "Pop",
41			[14] = "R&B",
42			[15] = "Rap",
43			[16] = "Reggae",
44			[17] = "Rock",
45			[18] = "Techno",
46			[19] = "Industrial",
47			[20] = "Alternative",
48			[21] = "Ska",
49			[22] = "Death Metal",
50			[23] = "Pranks",
51			[24] = "Soundtrack",
52			[25] = "Euro-Techno",
53			[26] = "Ambient",
54			[27] = "Trip-Hop",
55			[28] = "Vocal",
56			[29] = "Jazz+Funk",
57			[30] = "Fusion",
58			[31] = "Trance",
59			[32] = "Classical",
60			[33] = "Instrumental",
61			[34] = "Acid",
62			[35] = "House",
63			[36] = "Game",
64			[37] = "Sound Clip",
65			[38] = "Gospel",
66			[39] = "Noise",
67			[40] = "AlternRock",
68			[41] = "Bass",
69			[42] = "Soul",
70			[43] = "Punk",
71			[44] = "Space",
72			[45] = "Meditative",
73			[46] = "Instrumental Pop",
74			[47] = "Instrumental Rock",
75			[48] = "Ethnic",
76			[49] = "Gothic",
77			[50] = "Darkwave",
78			[51] = "Techno-Industrial",
79			[52] = "Electronic",
80			[53] = "Pop-Folk",
81			[54] = "Eurodance",
82			[55] = "Dream",
83			[56] = "Southern Rock",
84			[57] = "Comedy",
85			[58] = "Cult",
86			[59] = "Gangsta",
87			[60] = "Top 40",
88			[61] = "Christian Rap",
89			[62] = "Pop/Funk",
90			[63] = "Jungle",
91			[64] = "Native American",
92			[65] = "Cabaret",
93			[66] = "New Wave",
94			[67] = "Psychedelic",
95			[68] = "Rave",
96			[69] = "Showtunes",
97			[70] = "Trailer",
98			[71] = "Lo-Fi",
99			[72] = "Tribal",
100			[73] = "Acid Punk",
101			[74] = "Acid Jazz",
102			[75] = "Polka",
103			[76] = "Retro",
104			[77] = "Musical",
105			[78] = "Rock & Roll",
106			[79] = "Hard Rock",
107			[80] = "Folk",
108			[81] = "Folk-Rock",
109			[82] = "National Folk",
110			[83] = "Swing",
111			[84] = "Fast Fusion",
112			[85] = "Bebop",
113			[86] = "Latin",
114			[87] = "Revival",
115			[88] = "Celtic",
116			[89] = "Bluegrass",
117			[90] = "Avantgarde",
118			[91] = "Gothic Rock",
119			[92] = "Progressive Rock",
120			[93] = "Psychedelic Rock",
121			[94] = "Symphonic Rock",
122			[95] = "Slow Rock",
123			[96] = "Big Band",
124			[97] = "Chorus",
125			[98] = "Easy Listening",
126			[99] = "Acoustic",
127			[100] = "Humour",
128			[101] = "Speech",
129			[102] = "Chanson",
130			[103] = "Opera",
131			[104] = "Chamber Music",
132			[105] = "Sonata",
133			[106] = "Symphony",
134			[107] = "Booty Bass",
135			[108] = "Primus",
136			[109] = "Porn Groove",
137			[110] = "Satire",
138			[111] = "Slow Jam",
139			[112] = "Club",
140			[113] = "Tango",
141			[114] = "Samba",
142			[115] = "Folklore",
143			[116] = "Ballad",
144			[117] = "Power Ballad",
145			[118] = "Rhythmic Soul",
146			[119] = "Freestyle",
147			[120] = "Duet",
148			[121] = "Punk Rock",
149			[122] = "Drum Solo",
150			[123] = "A Cappella",
151			[124] = "Euro-House",
152			[125] = "Dance Hall",
153			[126] = "Goa",
154			[127] = "Drum & Bass",
155			[128] = "Club-House",
156			[129] = "Hardcore Techno",
157			[130] = "Terror",
158			[131] = "Indie",
159			[132] = "BritPop",
160			[133] = "Negerpunk",
161			[134] = "Polsk Punk",
162			[135] = "Beat",
163			[136] = "Christian Gangsta Rap",
164			[137] = "Heavy Metal",
165			[138] = "Black Metal",
166			[139] = "Crossover",
167			[140] = "Contemporary Christian",
168			[141] = "Christian Rock",
169			[142] = "Merengue",
170			[143] = "Salsa",
171			[144] = "Thrash Metal",
172			[145] = "Anime",
173			[146] = "Jpop",
174			[147] = "Synthpop",
175			[148] = "Abstract",
176			[149] = "Art Rock",
177			[150] = "Baroque",
178			[151] = "Bhangra",
179			[152] = "Big Beat",
180			[153] = "Breakbeat",
181			[154] = "Chillout",
182			[155] = "Downtempo",
183			[156] = "Dub",
184			[157] = "EBM",
185			[158] = "Eclectic",
186			[159] = "Electro",
187			[160] = "Electroclash",
188			[161] = "Emo",
189			[162] = "Experimental",
190			[163] = "Garage",
191			[164] = "Global",
192			[165] = "IDM",
193			[166] = "Illbient",
194			[167] = "Industro-Goth",
195			[168] = "Jam Band",
196			[169] = "Krautrock",
197			[170] = "Leftfield",
198			[171] = "Lounge",
199			[172] = "Math Rock",
200			[173] = "New Romantic",
201			[174] = "Nu-Breakz",
202			[175] = "Post-Punk",
203			[176] = "Post-Rock",
204			[177] = "Psytrance",
205			[178] = "Shoegaze",
206			[179] = "Space Rock",
207			[180] = "Trop Rock",
208			[181] = "World Music",
209			[182] = "Neoclassical",
210			[183] = "Audiobook",
211			[184] = "Audio Theatre",
212			[185] = "Neue Deutsche Welle",
213			[186] = "Podcast",
214			[187] = "Indie Rock",
215			[188] = "G-Funk",
216			[189] = "Dubstep",
217			[190] = "Garage Rock",
218			[191] = "Psybient"
219			};
220
221		5	static void get_string(AVFormatContext s, const char key,
222			const uint8_t *buf, int buf_size)
223			{
224			int i, c;
225		5	char q, str[512], first_free_space = NULL;
226
227		5	q = str;
228	2/2 ✓ Branch 0 taken 95 times. ✓ Branch 1 taken 4 times.	99	for(i = 0; i < buf_size; i++) {
229		95	c = buf[i];
230	2/2 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 94 times.	95	if (c == '\0')
231		1	break;
232	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 94 times.	94	if ((q - str) >= sizeof(str) - 1)
233		✗	break;
234	2/2 ✓ Branch 0 taken 83 times. ✓ Branch 1 taken 11 times.	94	if (c == ' ') {
235	2/2 ✓ Branch 0 taken 4 times. ✓ Branch 1 taken 79 times.	83	if (!first_free_space)
236		4	first_free_space = q;
237			} else {
238		11	first_free_space = NULL;
239			}
240		94	*q++ = c;
241			}
242		5	*q = '\0';
243
244	2/2 ✓ Branch 0 taken 4 times. ✓ Branch 1 taken 1 times.	5	if (first_free_space)
245		4	*first_free_space = '\0';
246
247	2/2 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 3 times.	5	if (*str)
248		2	av_dict_set(&s->metadata, key, str, 0);
249		5	}
250
251			/**
252			* Parse an ID3v1 tag
253			*
254			* @param buf ID3v1_TAG_SIZE long buffer containing the tag
255			*/
256		78	static int parse_tag(AVFormatContext s, const uint8_t buf)
257			{
258			int genre;
259
260	2/2 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 77 times.	78	if (!(buf[0] == 'T' &&
261	1/2 ✓ Branch 0 taken 1 times. ✗ Branch 1 not taken.	1	buf[1] == 'A' &&
262	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 1 times.	1	buf[2] == 'G'))
263		77	return -1;
264		1	get_string(s, "title", buf + 3, 30);
265		1	get_string(s, "artist", buf + 33, 30);
266		1	get_string(s, "album", buf + 63, 30);
267		1	get_string(s, "date", buf + 93, 4);
268		1	get_string(s, "comment", buf + 97, 30);
269	2/4 ✓ Branch 0 taken 1 times. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✓ Branch 3 taken 1 times.	1	if (buf[125] == 0 && buf[126] != 0) {
270		✗	av_dict_set_int(&s->metadata, "track", buf[126], 0);
271			}
272		1	genre = buf[127];
273	1/2 ✓ Branch 0 taken 1 times. ✗ Branch 1 not taken.	1	if (genre <= ID3v1_GENRE_MAX)
274		1	av_dict_set(&s->metadata, "genre", ff_id3v1_genre_str[genre], 0);
275		1	return 0;
276			}
277
278		78	void ff_id3v1_read(AVFormatContext *s)
279			{
280			int ret;
281			uint8_t buf[ID3v1_TAG_SIZE];
282		78	int64_t filesize, position = avio_tell(s->pb);
283
284	1/2 ✓ Branch 0 taken 78 times. ✗ Branch 1 not taken.	78	if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
285			/* XXX: change that */
286		78	filesize = avio_size(s->pb);
287	1/2 ✓ Branch 0 taken 78 times. ✗ Branch 1 not taken.	78	if (filesize > 128) {
288		78	avio_seek(s->pb, filesize - 128, SEEK_SET);
289		78	ret = avio_read(s->pb, buf, ID3v1_TAG_SIZE);
290	1/2 ✓ Branch 0 taken 78 times. ✗ Branch 1 not taken.	78	if (ret == ID3v1_TAG_SIZE) {
291		78	parse_tag(s, buf);
292			}
293		78	avio_seek(s->pb, position, SEEK_SET);
294			}
295			}
296		78	}
297

Function (Line)	Call count	Block coverage
ff_id3v1_read (line 278)	called 78 times, returned 78 times	100.0%
get_string (line 221)	called 5 times, returned 5 times	94.0%
parse_tag (line 256)	called 78 times, returned 78 times	94.0%