Hugging Face's logo

Spaces:
Pranjal12345
/
Whisper_with_FastApi
Runtime error

App Files Community
Whisper_with_FastApi
File size: 4,766 Bytes 
b86f76f
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
 
/*
 * RAW AC-3 and E-AC-3 demuxer
 * Copyright (c) 2007 Justin Ruggles <[email protected]>
 *
 * 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 "config_components.h"

#include "libavutil/avassert.h"
#include "libavutil/crc.h"
#include "libavcodec/ac3_parser.h"
#include "avformat.h"
#include "rawdec.h"

static int ac3_eac3_probe(const AVProbeData *p, enum AVCodecID expected_codec_id)
{
    int max_frames, first_frames = 0, frames;
    const uint8_t *buf, *buf2, *end;
    enum AVCodecID codec_id = AV_CODEC_ID_AC3;

    max_frames = 0;
    buf = p->buf;
    end = buf + p->buf_size;

    for(; buf < end; buf++) {
        if(buf > p->buf && !(buf[0] == 0x0B && buf[1] == 0x77)
                        && !(buf[0] == 0x77 && buf[1] == 0x0B) )
            continue;
        buf2 = buf;

        for(frames = 0; buf2 < end; frames++) {
            uint8_t buf3[4096];
            uint8_t bitstream_id;
            uint16_t frame_size;
            int i, ret;

            if(!memcmp(buf2, "\x1\x10", 2)) {
                if (buf2 + 16 > end)
                    break;
                buf2+=16;
            }
            if (buf[0] == 0x77 && buf[1] == 0x0B) {
                for(i=0; i<8; i+=2) {
                    buf3[i  ] = buf2[i+1];
                    buf3[i+1] = buf2[i  ];
                }
                ret = av_ac3_parse_header(buf3, 8, &bitstream_id,
                                          &frame_size);
            }else
                ret = av_ac3_parse_header(buf2, end - buf2, &bitstream_id,
                                          &frame_size);
            if (ret < 0)
                break;
            if(buf2 + frame_size > end)
                break;
            if (buf[0] == 0x77 && buf[1] == 0x0B) {
                av_assert0(frame_size <= sizeof(buf3));
                for(i = 8; i < frame_size; i += 2) {
                    buf3[i  ] = buf2[i+1];
                    buf3[i+1] = buf2[i  ];
                }
                if (av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, buf3 + 2, frame_size - 2))
                    break;
            } else {
                if (av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, buf2 + 2, frame_size - 2))
                    break;
            }
            if (bitstream_id > 10)
                codec_id = AV_CODEC_ID_EAC3;
            buf2 += frame_size;
        }
        max_frames = FFMAX(max_frames, frames);
        if(buf == p->buf)
            first_frames = frames;
    }
    if(codec_id != expected_codec_id) return 0;
    // keep this in sync with mp3 probe, both need to avoid
    // issues with MPEG-files!
    if   (first_frames>=7) return AVPROBE_SCORE_EXTENSION + 1;
    else if(max_frames>200)return AVPROBE_SCORE_EXTENSION;
    else if(max_frames>=4) return AVPROBE_SCORE_EXTENSION/2;
    else if(max_frames>=1) return 1;
    else                   return 0;
}

#if CONFIG_AC3_DEMUXER
static int ac3_probe(const AVProbeData *p)
{
    return ac3_eac3_probe(p, AV_CODEC_ID_AC3);
}

const AVInputFormat ff_ac3_demuxer = {
    .name           = "ac3",
    .long_name      = NULL_IF_CONFIG_SMALL("raw AC-3"),
    .read_probe     = ac3_probe,
    .read_header    = ff_raw_audio_read_header,
    .read_packet    = ff_raw_read_partial_packet,
    .flags= AVFMT_GENERIC_INDEX,
    .extensions = "ac3",
    .raw_codec_id   = AV_CODEC_ID_AC3,
    .priv_data_size = sizeof(FFRawDemuxerContext),
    .priv_class     = &ff_raw_demuxer_class,
};
#endif

#if CONFIG_EAC3_DEMUXER
static int eac3_probe(const AVProbeData *p)
{
    return ac3_eac3_probe(p, AV_CODEC_ID_EAC3);
}

const AVInputFormat ff_eac3_demuxer = {
    .name           = "eac3",
    .long_name      = NULL_IF_CONFIG_SMALL("raw E-AC-3"),
    .read_probe     = eac3_probe,
    .read_header    = ff_raw_audio_read_header,
    .read_packet    = ff_raw_read_partial_packet,
    .flags          = AVFMT_GENERIC_INDEX,
    .extensions     = "eac3,ec3",
    .raw_codec_id   = AV_CODEC_ID_EAC3,
    .priv_data_size = sizeof(FFRawDemuxerContext),
    .priv_class     = &ff_raw_demuxer_class,
};
#endif