return count;
}
-/* simple formats */
-
-static void id3v2_put_size(AVFormatContext *s, int size)
-{
- avio_w8(s->pb, size >> 21 & 0x7f);
- avio_w8(s->pb, size >> 14 & 0x7f);
- avio_w8(s->pb, size >> 7 & 0x7f);
- avio_w8(s->pb, size & 0x7f);
-}
-
-static int string_is_ascii(const uint8_t *str)
-{
- while (*str && *str < 128) str++;
- return !*str;
-}
-
-/**
- * Write a text frame with one (normal frames) or two (TXXX frames) strings
- * according to encoding (only UTF-8 or UTF-16+BOM supported).
- * @return number of bytes written or a negative error code.
- */
-static int id3v2_put_ttag(AVFormatContext *s, const char *str1, const char *str2,
- uint32_t tag, enum ID3v2Encoding enc)
-{
- int len;
- uint8_t *pb;
- int (*put)(AVIOContext*, const char*);
- AVIOContext *dyn_buf;
- if (avio_open_dyn_buf(&dyn_buf) < 0)
- return AVERROR(ENOMEM);
-
- /* check if the strings are ASCII-only and use UTF16 only if
- * they're not */
- if (enc == ID3v2_ENCODING_UTF16BOM && string_is_ascii(str1) &&
- (!str2 || string_is_ascii(str2)))
- enc = ID3v2_ENCODING_ISO8859;
-
- avio_w8(dyn_buf, enc);
- if (enc == ID3v2_ENCODING_UTF16BOM) {
- avio_wl16(dyn_buf, 0xFEFF); /* BOM */
- put = avio_put_str16le;
- } else
- put = avio_put_str;
-
- put(dyn_buf, str1);
- if (str2)
- put(dyn_buf, str2);
- len = avio_close_dyn_buf(dyn_buf, &pb);
-
- avio_wb32(s->pb, tag);
- id3v2_put_size(s, len);
- avio_wb16(s->pb, 0);
- avio_write(s->pb, pb, len);
-
- av_freep(&pb);
- return len + ID3v2_HEADER_SIZE;
-}
-
#define VBR_NUM_BAGS 400
#define VBR_TOC_SIZE 100
+
typedef struct MP3Context {
const AVClass *class;
int id3v2_version;
static const AVOption options[] = {
{ "id3v2_version", "Select ID3v2 version to write. Currently 3 and 4 are supported.",
- offsetof(MP3Context, id3v2_version), FF_OPT_TYPE_INT, {.dbl = 4}, 3, 4, AV_OPT_FLAG_ENCODING_PARAM},
+ offsetof(MP3Context, id3v2_version), AV_OPT_TYPE_INT, {.dbl = 4}, 3, 4, AV_OPT_FLAG_ENCODING_PARAM},
{ "write_id3v1", "Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software.",
- offsetof(MP3Context, write_id3v1), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
+ offsetof(MP3Context, write_id3v1), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
.version = LIBAVUTIL_VERSION_INT,
};
-static int id3v2_check_write_tag(AVFormatContext *s, AVDictionaryEntry *t, const char table[][4],
- enum ID3v2Encoding enc)
-{
- uint32_t tag;
- int i;
-
- if (t->key[0] != 'T' || strlen(t->key) != 4)
- return -1;
- tag = AV_RB32(t->key);
- for (i = 0; *table[i]; i++)
- if (tag == AV_RB32(table[i]))
- return id3v2_put_ttag(s, t->value, NULL, tag, enc);
- return -1;
-}
-
static const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
/*
int srate_idx, i, channels;
int needed;
- for (i = 0; i < FF_ARRAY_ELEMS(ff_mpa_freq_tab); i++)
- if (ff_mpa_freq_tab[i] == codec->sample_rate) {
+ for (i = 0; i < FF_ARRAY_ELEMS(avpriv_mpa_freq_tab); i++)
+ if (avpriv_mpa_freq_tab[i] == codec->sample_rate) {
srate_idx = i;
break;
}
- if (i == FF_ARRAY_ELEMS(ff_mpa_freq_tab)) {
+ if (i == FF_ARRAY_ELEMS(avpriv_mpa_freq_tab)) {
av_log(s, AV_LOG_ERROR, "Unsupported sample rate.\n");
return -1;
}
mask = (bitrate_idx << 4) << 8;
header |= mask;
- ff_mpegaudio_decode_header(&c, header);
+ avpriv_mpegaudio_decode_header(&c, header);
xing_offset=xing_offtbl[c.lsf == 1][c.nb_channels == 1];
needed = 4 // header
+ xing_offset
static int mp3_write_header(struct AVFormatContext *s)
{
MP3Context *mp3 = s->priv_data;
- AVDictionaryEntry *t = NULL;
- int totlen = 0, enc = mp3->id3v2_version == 3 ? ID3v2_ENCODING_UTF16BOM :
- ID3v2_ENCODING_UTF8;
- int64_t size_pos, cur_pos;
-
- avio_wb32(s->pb, MKBETAG('I', 'D', '3', mp3->id3v2_version));
- avio_w8(s->pb, 0);
- avio_w8(s->pb, 0); /* flags */
-
- /* reserve space for size */
- size_pos = avio_tell(s->pb);
- avio_wb32(s->pb, 0);
-
- ff_metadata_conv(&s->metadata, ff_id3v2_34_metadata_conv, NULL);
- if (mp3->id3v2_version == 4)
- ff_metadata_conv(&s->metadata, ff_id3v2_4_metadata_conv, NULL);
-
- while ((t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX))) {
- int ret;
+ int ret;
- if ((ret = id3v2_check_write_tag(s, t, ff_id3v2_tags, enc)) > 0) {
- totlen += ret;
- continue;
- }
- if ((ret = id3v2_check_write_tag(s, t, mp3->id3v2_version == 3 ?
- ff_id3v2_3_tags : ff_id3v2_4_tags, enc)) > 0) {
- totlen += ret;
- continue;
- }
-
- /* unknown tag, write as TXXX frame */
- if ((ret = id3v2_put_ttag(s, t->key, t->value, MKBETAG('T', 'X', 'X', 'X'), enc)) < 0)
- return ret;
- totlen += ret;
- }
-
- cur_pos = avio_tell(s->pb);
- avio_seek(s->pb, size_pos, SEEK_SET);
- id3v2_put_size(s, totlen);
- avio_seek(s->pb, cur_pos, SEEK_SET);
+ ret = ff_id3v2_write(s, mp3->id3v2_version, ID3v2_DEFAULT_MAGIC);
+ if (ret < 0)
+ return ret;
if (s->pb->seekable)
mp3_write_xing(s);
projects / ffmpeg / blobdiff