* Reference documents:
* http://www.opengroup.org/public/pubs/external/auformat.html
* http://www.goice.co.jp/member/mo/formats/au.html
* Reference documents:
* http://www.opengroup.org/public/pubs/external/auformat.html
* http://www.goice.co.jp/member/mo/formats/au.html
- { AV_CODEC_ID_PCM_MULAW, 1 },
- { AV_CODEC_ID_PCM_S8, 2 },
- { AV_CODEC_ID_PCM_S16BE, 3 },
- { AV_CODEC_ID_PCM_S24BE, 4 },
- { AV_CODEC_ID_PCM_S32BE, 5 },
- { AV_CODEC_ID_PCM_F32BE, 6 },
- { AV_CODEC_ID_PCM_F64BE, 7 },
- { AV_CODEC_ID_PCM_ALAW, 27 },
- { AV_CODEC_ID_NONE, 0 },
+ { AV_CODEC_ID_PCM_MULAW, 1 },
+ { AV_CODEC_ID_PCM_S8, 2 },
+ { AV_CODEC_ID_PCM_S16BE, 3 },
+ { AV_CODEC_ID_PCM_S24BE, 4 },
+ { AV_CODEC_ID_PCM_S32BE, 5 },
+ { AV_CODEC_ID_PCM_F32BE, 6 },
+ { AV_CODEC_ID_PCM_F64BE, 7 },
+ { AV_CODEC_ID_PCM_ALAW, 27 },
+ { AV_CODEC_ID_NONE, 0 },
if (p->buf[0] == '.' && p->buf[1] == 's' &&
p->buf[2] == 'n' && p->buf[3] == 'd')
return AVPROBE_SCORE_MAX;
if (p->buf[0] == '.' && p->buf[1] == 's' &&
p->buf[2] == 'n' && p->buf[3] == 'd')
return AVPROBE_SCORE_MAX;
static int au_read_header(AVFormatContext *s)
{
int size;
unsigned int tag;
AVIOContext *pb = s->pb;
unsigned int id, channels, rate;
static int au_read_header(AVFormatContext *s)
{
int size;
unsigned int tag;
AVIOContext *pb = s->pb;
unsigned int id, channels, rate;
tag = avio_rl32(pb);
if (tag != MKTAG('.', 's', 'n', 'd'))
tag = avio_rl32(pb);
if (tag != MKTAG('.', 's', 'n', 'd'))
- if (!av_get_bits_per_sample(codec)) {
- av_log_ask_for_sample(s, "could not determine bits per sample\n");
- return AVERROR_INVALIDDATA;
+ if (codec == AV_CODEC_ID_NONE) {
+ avpriv_request_sample(s, "unknown or unsupported codec tag: %u", id);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ bps = av_get_bits_per_sample(codec);
+ if (!bps) {
+ avpriv_request_sample(s, "Unknown bits per sample");
+ return AVERROR_PATCHWELCOME;
- if (channels == 0 || channels > 64) {
- av_log(s, AV_LOG_ERROR, "Invalid number of channels %d\n", channels);
+ if (channels == 0 || channels >= INT_MAX / (BLOCK_SIZE * bps >> 3)) {
+ av_log(s, AV_LOG_ERROR, "Invalid number of channels %u\n", channels);
- if (size >= 24) {
- /* skip unused data */
- avio_skip(pb, size - 24);
+ if (rate == 0 || rate > INT_MAX) {
+ av_log(s, AV_LOG_ERROR, "Invalid sample rate: %u\n", rate);
+ return AVERROR_INVALIDDATA;
- return -1;
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_tag = id;
- st->codec->codec_id = codec;
- st->codec->channels = channels;
+ return AVERROR(ENOMEM);
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_tag = id;
+ st->codec->codec_id = codec;
+ st->codec->channels = channels;
avpriv_set_pts_info(st, 64, 1, rate);
avpriv_set_pts_info(st, 64, 1, rate);
- ret= av_get_packet(s->pb, pkt, BLOCK_SIZE *
- s->streams[0]->codec->channels *
- av_get_bits_per_sample(s->streams[0]->codec->codec_id) >> 3);
+ ret = av_get_packet(s->pb, pkt, BLOCK_SIZE *
+ s->streams[0]->codec->block_align);
- .name = "au",
- .long_name = NULL_IF_CONFIG_SMALL("Sun AU"),
- .read_probe = au_probe,
- .read_header = au_read_header,
- .read_packet = au_read_packet,
- .read_seek = ff_pcm_read_seek,
- .codec_tag = (const AVCodecTag* const []){ codec_au_tags, 0 },
+ .name = "au",
+ .long_name = NULL_IF_CONFIG_SMALL("Sun AU"),
+ .read_probe = au_probe,
+ .read_header = au_read_header,
+ .read_packet = au_read_packet,
+ .read_seek = ff_pcm_read_seek,
+ .codec_tag = (const AVCodecTag* const []) { codec_au_tags, 0 },
/* if we don't know the size in advance */
#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
/* AUDIO_FILE header */
static int put_au_header(AVIOContext *pb, AVCodecContext *enc)
{
/* if we don't know the size in advance */
#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
/* AUDIO_FILE header */
static int put_au_header(AVIOContext *pb, AVCodecContext *enc)
{
- if(!enc->codec_tag)
- return -1;
- ffio_wfourcc(pb, ".snd"); /* magic number */
- avio_wb32(pb, 24); /* header size */
- avio_wb32(pb, AU_UNKNOWN_SIZE); /* data size */
- avio_wb32(pb, (uint32_t)enc->codec_tag); /* codec ID */
+ if (!enc->codec_tag)
+ return AVERROR(EINVAL);
+
+ ffio_wfourcc(pb, ".snd"); /* magic number */
+ avio_wb32(pb, 24); /* header size */
+ avio_wb32(pb, AU_UNKNOWN_SIZE); /* data size */
+ avio_wb32(pb, enc->codec_tag); /* codec ID */
-static int au_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
- AVIOContext *pb = s->pb;
- avio_write(pb, pkt->data, pkt->size);
- return 0;
-}
-
/* update file size */
file_size = avio_tell(pb);
avio_seek(pb, 8, SEEK_SET);
avio_wb32(pb, (uint32_t)(file_size - 24));
avio_seek(pb, file_size, SEEK_SET);
/* update file size */
file_size = avio_tell(pb);
avio_seek(pb, 8, SEEK_SET);
avio_wb32(pb, (uint32_t)(file_size - 24));
avio_seek(pb, file_size, SEEK_SET);
- .name = "au",
- .long_name = NULL_IF_CONFIG_SMALL("Sun AU"),
- .mime_type = "audio/basic",
- .extensions = "au",
- .audio_codec = AV_CODEC_ID_PCM_S16BE,
- .video_codec = AV_CODEC_ID_NONE,
- .write_header = au_write_header,
- .write_packet = au_write_packet,
- .write_trailer = au_write_trailer,
- .codec_tag = (const AVCodecTag* const []){ codec_au_tags, 0 },
+ .name = "au",
+ .long_name = NULL_IF_CONFIG_SMALL("Sun AU"),
+ .mime_type = "audio/basic",
+ .extensions = "au",
+ .audio_codec = AV_CODEC_ID_PCM_S16BE,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = au_write_header,
+ .write_packet = ff_raw_write_packet,
+ .write_trailer = au_write_trailer,
+ .codec_tag = (const AVCodecTag* const []) { codec_au_tags, 0 },