#include "libavcodec/flac.h"
#include "avformat.h"
+#include "id3v2.h"
#include "internal.h"
#include "rawdec.h"
#include "oggdec.h"
#include "vorbiscomment.h"
#include "libavcodec/bytestream.h"
+#define RETURN_ERROR(code) do { ret = (code); goto fail; } while (0)
+
+static int parse_picture(AVFormatContext *s, uint8_t *buf, int buf_size)
+{
+ const CodecMime *mime = ff_id3v2_mime_tags;
+ enum AVCodecID id = AV_CODEC_ID_NONE;
+ uint8_t mimetype[64], *desc = NULL, *data = NULL;
+ AVIOContext *pb = NULL;
+ AVStream *st;
+ int type, width, height;
+ int len, ret = 0;
+
+ pb = avio_alloc_context(buf, buf_size, 0, NULL, NULL, NULL, NULL);
+ if (!pb)
+ return AVERROR(ENOMEM);
+
+ /* read the picture type */
+ type = avio_rb32(pb);
+ if (type >= FF_ARRAY_ELEMS(ff_id3v2_picture_types) || type < 0) {
+ av_log(s, AV_LOG_ERROR, "Invalid picture type: %d.\n", type);
+ if (s->error_recognition & AV_EF_EXPLODE) {
+ RETURN_ERROR(AVERROR_INVALIDDATA);
+ }
+ type = 0;
+ }
+
+ /* picture mimetype */
+ len = avio_rb32(pb);
+ if (len <= 0 ||
+ avio_read(pb, mimetype, FFMIN(len, sizeof(mimetype) - 1)) != len) {
+ av_log(s, AV_LOG_ERROR, "Could not read mimetype from an attached "
+ "picture.\n");
+ if (s->error_recognition & AV_EF_EXPLODE)
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+ mimetype[len] = 0;
+
+ while (mime->id != AV_CODEC_ID_NONE) {
+ if (!strncmp(mime->str, mimetype, sizeof(mimetype))) {
+ id = mime->id;
+ break;
+ }
+ mime++;
+ }
+ if (id == AV_CODEC_ID_NONE) {
+ av_log(s, AV_LOG_ERROR, "Unknown attached picture mimetype: %s.\n",
+ mimetype);
+ if (s->error_recognition & AV_EF_EXPLODE)
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ /* picture description */
+ len = avio_rb32(pb);
+ if (len > 0) {
+ if (!(desc = av_malloc(len + 1))) {
+ RETURN_ERROR(AVERROR(ENOMEM));
+ }
+
+ if (avio_read(pb, desc, len) != len) {
+ av_log(s, AV_LOG_ERROR, "Error reading attached picture description.\n");
+ if (s->error_recognition & AV_EF_EXPLODE)
+ ret = AVERROR(EIO);
+ goto fail;
+ }
+ desc[len] = 0;
+ }
+
+ /* picture metadata */
+ width = avio_rb32(pb);
+ height = avio_rb32(pb);
+ avio_skip(pb, 8);
+
+ /* picture data */
+ len = avio_rb32(pb);
+ if (len <= 0) {
+ av_log(s, AV_LOG_ERROR, "Invalid attached picture size: %d.\n", len);
+ if (s->error_recognition & AV_EF_EXPLODE)
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+ if (!(data = av_malloc(len))) {
+ RETURN_ERROR(AVERROR(ENOMEM));
+ }
+ if (avio_read(pb, data, len) != len) {
+ av_log(s, AV_LOG_ERROR, "Error reading attached picture data.\n");
+ if (s->error_recognition & AV_EF_EXPLODE)
+ ret = AVERROR(EIO);
+ goto fail;
+ }
+
+ st = avformat_new_stream(s, NULL);
+ if (!st) {
+ RETURN_ERROR(AVERROR(ENOMEM));
+ }
+
+ av_init_packet(&st->attached_pic);
+ st->attached_pic.data = data;
+ st->attached_pic.size = len;
+ st->attached_pic.destruct = av_destruct_packet;
+ st->attached_pic.stream_index = st->index;
+ st->attached_pic.flags |= AV_PKT_FLAG_KEY;
+
+ st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = id;
+ st->codec->width = width;
+ st->codec->height = height;
+ av_dict_set(&st->metadata, "comment", ff_id3v2_picture_types[type], 0);
+ if (desc)
+ av_dict_set(&st->metadata, "title", desc, AV_DICT_DONT_STRDUP_VAL);
+
+ av_freep(&pb);
+
+ return 0;
+
+fail:
+ av_freep(&desc);
+ av_freep(&data);
+ av_freep(&pb);
+ return ret;
+
+}
+
static int flac_read_header(AVFormatContext *s)
{
int ret, metadata_last=0, metadata_type, metadata_size, found_streaminfo=0;
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_FLAC;
- st->need_parsing = AVSTREAM_PARSE_FULL;
+ st->codec->codec_id = AV_CODEC_ID_FLAC;
+ st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
/* the parameters will be extracted from the compressed bitstream */
/* if fLaC marker is not found, assume there is no header */
/* allocate and read metadata block for supported types */
case FLAC_METADATA_TYPE_STREAMINFO:
case FLAC_METADATA_TYPE_CUESHEET:
+ case FLAC_METADATA_TYPE_PICTURE:
case FLAC_METADATA_TYPE_VORBIS_COMMENT:
buffer = av_mallocz(metadata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!buffer) {
return AVERROR(ENOMEM);
}
if (avio_read(s->pb, buffer, metadata_size) != metadata_size) {
- av_freep(&buffer);
- return AVERROR(EIO);
+ RETURN_ERROR(AVERROR(EIO));
}
break;
/* skip metadata block for unsupported types */
FLACStreaminfo si;
/* STREAMINFO can only occur once */
if (found_streaminfo) {
- av_freep(&buffer);
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
}
if (metadata_size != FLAC_STREAMINFO_SIZE) {
- av_freep(&buffer);
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
}
found_streaminfo = 1;
st->codec->extradata = buffer;
const uint8_t *offset;
int i, chapters, track, ti;
if (metadata_size < 431)
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
offset = buffer + 395;
chapters = bytestream_get_byte(&offset) - 1;
if (chapters <= 0)
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
for (i = 0; i < chapters; i++) {
if (offset + 36 - buffer > metadata_size)
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
start = bytestream_get_be64(&offset);
track = bytestream_get_byte(&offset);
bytestream_get_buffer(&offset, isrc, 12);
isrc[12] = 0;
offset += 14;
ti = bytestream_get_byte(&offset);
- if (ti <= 0) return AVERROR_INVALIDDATA;
+ if (ti <= 0) RETURN_ERROR(AVERROR_INVALIDDATA);
offset += ti * 12;
avpriv_new_chapter(s, track, st->time_base, start, AV_NOPTS_VALUE, isrc);
}
+ av_freep(&buffer);
+ } else if (metadata_type == FLAC_METADATA_TYPE_PICTURE) {
+ ret = parse_picture(s, buffer, metadata_size);
+ av_freep(&buffer);
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "Error parsing attached picture.\n");
+ return ret;
+ }
} else {
/* STREAMINFO must be the first block */
if (!found_streaminfo) {
- av_freep(&buffer);
- return AVERROR_INVALIDDATA;
+ RETURN_ERROR(AVERROR_INVALIDDATA);
}
/* process supported blocks other than STREAMINFO */
if (metadata_type == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
}
return 0;
+
+fail:
+ av_free(buffer);
+ return ret;
}
static int flac_probe(AVProbeData *p)
.read_packet = ff_raw_read_partial_packet,
.flags = AVFMT_GENERIC_INDEX,
.extensions = "flac",
- .raw_codec_id = CODEC_ID_FLAC,
+ .raw_codec_id = AV_CODEC_ID_FLAC,
};
projects / ffmpeg / blobdiff