*/
#include "avformat.h"
+#include "internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
+#include "riff.h"
typedef struct VqfContext {
int frame_bit_len;
if (!memcmp(probe_packet->buf + 4, "00052200", 8))
return AVPROBE_SCORE_MAX;
- return AVPROBE_SCORE_MAX/2;
+ return AVPROBE_SCORE_EXTENSION;
}
-static void add_metadata(AVFormatContext *s, const char *tag,
+static void add_metadata(AVFormatContext *s, uint32_t tag,
unsigned int tag_len, unsigned int remaining)
{
int len = FFMIN(tag_len, remaining);
- char *buf;
+ char *buf, key[5] = {0};
if (len == UINT_MAX)
return;
return;
avio_read(s->pb, buf, len);
buf[len] = 0;
- av_dict_set(&s->metadata, tag, buf, AV_DICT_DONT_STRDUP_VAL);
+ AV_WL32(key, tag);
+ av_dict_set(&s->metadata, key, buf, AV_DICT_DONT_STRDUP_VAL);
}
-static int vqf_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static const AVMetadataConv vqf_metadata_conv[] = {
+ { "(c) ", "copyright" },
+ { "ARNG", "arranger" },
+ { "AUTH", "author" },
+ { "BAND", "band" },
+ { "CDCT", "conductor" },
+ { "COMT", "comment" },
+ { "FILE", "filename" },
+ { "GENR", "genre" },
+ { "LABL", "publisher" },
+ { "MUSC", "composer" },
+ { "NAME", "title" },
+ { "NOTE", "note" },
+ { "PROD", "producer" },
+ { "PRSN", "personnel" },
+ { "REMX", "remixer" },
+ { "SING", "singer" },
+ { "TRCK", "track" },
+ { "WORD", "words" },
+ { 0 },
+};
+
+static int vqf_read_header(AVFormatContext *s)
{
VqfContext *c = s->priv_data;
AVStream *st = avformat_new_stream(s, NULL);
int header_size;
int read_bitrate = 0;
int size;
+ uint8_t comm_chunk[12];
if (!st)
return AVERROR(ENOMEM);
header_size = avio_rb32(s->pb);
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_TWINVQ;
+ st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codecpar->codec_id = AV_CODEC_ID_TWINVQ;
st->start_time = 0;
do {
switch(chunk_tag){
case MKTAG('C','O','M','M'):
- st->codec->channels = avio_rb32(s->pb) + 1;
- read_bitrate = avio_rb32(s->pb);
- rate_flag = avio_rb32(s->pb);
+ avio_read(s->pb, comm_chunk, 12);
+ st->codecpar->channels = AV_RB32(comm_chunk ) + 1;
+ read_bitrate = AV_RB32(comm_chunk + 4);
+ rate_flag = AV_RB32(comm_chunk + 8);
avio_skip(s->pb, len-12);
- st->codec->bit_rate = read_bitrate*1000;
- break;
- case MKTAG('N','A','M','E'):
- add_metadata(s, "title" , len, header_size);
- break;
- case MKTAG('(','c',')',' '):
- add_metadata(s, "copyright", len, header_size);
- break;
- case MKTAG('A','U','T','H'):
- add_metadata(s, "author" , len, header_size);
- break;
- case MKTAG('A','L','B','M'):
- add_metadata(s, "album" , len, header_size);
- break;
- case MKTAG('T','R','C','K'):
- add_metadata(s, "track" , len, header_size);
+ st->codecpar->bit_rate = read_bitrate * 1000;
break;
- case MKTAG('C','O','M','T'):
- add_metadata(s, "comment" , len, header_size);
- break;
- case MKTAG('F','I','L','E'):
- add_metadata(s, "filename" , len, header_size);
- break;
- case MKTAG('D','S','I','Z'):
- add_metadata(s, "size" , len, header_size);
- break;
- case MKTAG('D','A','T','E'):
- add_metadata(s, "date" , len, header_size);
+ case MKTAG('D','S','I','Z'): // size of compressed data
+ {
+ char buf[8] = {0};
+ int size = avio_rb32(s->pb);
+
+ snprintf(buf, sizeof(buf), "%d", size);
+ av_dict_set(&s->metadata, "size", buf, 0);
+ }
break;
- case MKTAG('G','E','N','R'):
- add_metadata(s, "genre" , len, header_size);
+ case MKTAG('Y','E','A','R'): // recording date
+ case MKTAG('E','N','C','D'): // compression date
+ case MKTAG('E','X','T','R'): // reserved
+ case MKTAG('_','Y','M','H'): // reserved
+ case MKTAG('_','N','T','T'): // reserved
+ case MKTAG('_','I','D','3'): // reserved for ID3 tags
+ avio_skip(s->pb, FFMIN(len, header_size));
break;
default:
- av_log(s, AV_LOG_ERROR, "Unknown chunk: %c%c%c%c\n",
- ((char*)&chunk_tag)[0], ((char*)&chunk_tag)[1],
- ((char*)&chunk_tag)[2], ((char*)&chunk_tag)[3]);
- avio_skip(s->pb, FFMIN(len, header_size));
+ add_metadata(s, chunk_tag, len, header_size);
break;
}
av_log(s, AV_LOG_ERROR, "COMM tag not found!\n");
return -1;
case 44:
- st->codec->sample_rate = 44100;
+ st->codecpar->sample_rate = 44100;
break;
case 22:
- st->codec->sample_rate = 22050;
+ st->codecpar->sample_rate = 22050;
break;
case 11:
- st->codec->sample_rate = 11025;
+ st->codecpar->sample_rate = 11025;
break;
default:
- st->codec->sample_rate = rate_flag*1000;
+ if (rate_flag < 8 || rate_flag > 44) {
+ av_log(s, AV_LOG_ERROR, "Invalid rate flag %d\n", rate_flag);
+ return AVERROR_INVALIDDATA;
+ }
+ st->codecpar->sample_rate = rate_flag*1000;
break;
}
- switch (((st->codec->sample_rate/1000) << 8) +
- read_bitrate/st->codec->channels) {
+ if (read_bitrate / st->codecpar->channels < 8 ||
+ read_bitrate / st->codecpar->channels > 48) {
+ av_log(s, AV_LOG_ERROR, "Invalid bitrate per channel %d\n",
+ read_bitrate / st->codecpar->channels);
+ return AVERROR_INVALIDDATA;
+ }
+
+ switch (((st->codecpar->sample_rate/1000) << 8) +
+ read_bitrate/st->codecpar->channels) {
case (11<<8) + 8 :
case (8 <<8) + 8 :
case (11<<8) + 10:
break;
default:
av_log(s, AV_LOG_ERROR, "Mode not suported: %d Hz, %d kb/s.\n",
- st->codec->sample_rate, st->codec->bit_rate);
+ st->codecpar->sample_rate, st->codecpar->bit_rate);
return -1;
}
- c->frame_bit_len = st->codec->bit_rate*size/st->codec->sample_rate;
- av_set_pts_info(st, 64, 1, st->codec->sample_rate);
+ c->frame_bit_len = st->codecpar->bit_rate*size/st->codecpar->sample_rate;
+ avpriv_set_pts_info(st, 64, size, st->codecpar->sample_rate);
+
+ /* put first 12 bytes of COMM chunk in extradata */
+ if (!(st->codecpar->extradata = av_malloc(12 + AV_INPUT_BUFFER_PADDING_SIZE)))
+ return AVERROR(ENOMEM);
+ st->codecpar->extradata_size = 12;
+ memcpy(st->codecpar->extradata, comm_chunk, 12);
+
+ ff_metadata_conv_ctx(s, NULL, vqf_metadata_conv);
return 0;
}
int ret;
int size = (c->frame_bit_len - c->remaining_bits + 7)>>3;
- pkt->pos = avio_tell(s->pb);
- pkt->stream_index = 0;
-
if (av_new_packet(pkt, size+2) < 0)
return AVERROR(EIO);
+ pkt->pos = avio_tell(s->pb);
+ pkt->stream_index = 0;
+ pkt->duration = 1;
+
pkt->data[0] = 8 - c->remaining_bits; // Number of bits to skip
pkt->data[1] = c->last_frame_bits;
ret = avio_read(s->pb, pkt->data+2, size);
if (ret<=0) {
- av_free_packet(pkt);
+ av_packet_unref(pkt);
return AVERROR(EIO);
}
int64_t pos;
st = s->streams[stream_index];
- pos = av_rescale_rnd(timestamp * st->codec->bit_rate,
+ pos = av_rescale_rnd(timestamp * st->codecpar->bit_rate,
st->time_base.num,
st->time_base.den * (int64_t)c->frame_bit_len,
(flags & AVSEEK_FLAG_BACKWARD) ?
pos *= c->frame_bit_len;
st->cur_dts = av_rescale(pos, st->time_base.den,
- st->codec->bit_rate * (int64_t)st->time_base.num);
+ st->codecpar->bit_rate * (int64_t)st->time_base.num);
- if ((ret = avio_seek(s->pb, ((pos-7) >> 3) + s->data_offset, SEEK_SET)) < 0)
+ if ((ret = avio_seek(s->pb, ((pos-7) >> 3) + s->internal->data_offset, SEEK_SET)) < 0)
return ret;
c->remaining_bits = -7 - ((pos-7)&7);
.read_header = vqf_read_header,
.read_packet = vqf_read_packet,
.read_seek = vqf_read_seek,
- .extensions = "vqf",
+ .extensions = "vqf,vql,vqe",
};
projects / ffmpeg / blobdiff