Rename aiff.c to aiffdec.c

Originally committed as revision 20235 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 0 insertions, 315 deletions

diff --git a/libavformat/aiff.c b/libavformat/aiff.c
deleted file mode 100644
index 6cc91d4c19..0000000000
--- a/libavformat/aiff.c
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * AIFF/AIFF-C demuxer
- * Copyright (c) 2006  Patrick Guimond
- *
- * 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 "libavutil/intfloat_readwrite.h"
-#include "avformat.h"
-#include "raw.h"
-#include "aiff.h"
-
-#define AIFF                    0
-#define AIFF_C_VERSION1         0xA2805140
-
-typedef struct {
-    int64_t data_end;
-} AIFFInputContext;
-
-static enum CodecID aiff_codec_get_id(int bps)
-{
-    if (bps <= 8)
-        return CODEC_ID_PCM_S8;
-    if (bps <= 16)
-        return CODEC_ID_PCM_S16BE;
-    if (bps <= 24)
-        return CODEC_ID_PCM_S24BE;
-    if (bps <= 32)
-        return CODEC_ID_PCM_S32BE;
-
-    /* bigger than 32 isn't allowed  */
-    return CODEC_ID_NONE;
-}
-
-/* returns the size of the found tag */
-static int get_tag(ByteIOContext *pb, uint32_t * tag)
-{
-    int size;
-
-    if (url_feof(pb))
-        return AVERROR(EIO);
-
-    *tag = get_le32(pb);
-    size = get_be32(pb);
-
-    if (size < 0)
-        size = 0x7fffffff;
-
-    return size;
-}
-
-/* Metadata string read */
-static void get_meta(AVFormatContext *s, const char *key, int size)
-{
-    uint8_t str[1024];
-    int res = get_buffer(s->pb, str, FFMIN(sizeof(str)-1, size));
-    if (res < 0)
-        return;
-
-    str[res] = 0;
-    if (size & 1)
-        size++;
-    size -= res;
-    if (size)
-        url_fskip(s->pb, size);
-
-    av_metadata_set(&s->metadata, key, str);
-}
-
-/* Returns the number of sound data frames or negative on error */
-static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
-                             int size, unsigned version)
-{
-    AVExtFloat ext;
-    double sample_rate;
-    unsigned int num_frames;
-
-    if (size & 1)
-        size++;
-    codec->codec_type = CODEC_TYPE_AUDIO;
-    codec->channels = get_be16(pb);
-    num_frames = get_be32(pb);
-    codec->bits_per_coded_sample = get_be16(pb);
-
-    get_buffer(pb, (uint8_t*)&ext, sizeof(ext));/* Sample rate is in */
-    sample_rate = av_ext2dbl(ext);          /* 80 bits BE IEEE extended float */
-    codec->sample_rate = sample_rate;
-    size -= 18;
-
-    /* Got an AIFF-C? */
-    if (version == AIFF_C_VERSION1) {
-        codec->codec_tag = get_le32(pb);
-        codec->codec_id  = ff_codec_get_id(ff_codec_aiff_tags, codec->codec_tag);
-
-        switch (codec->codec_id) {
-        case CODEC_ID_PCM_S16BE:
-            codec->codec_id = aiff_codec_get_id(codec->bits_per_coded_sample);
-            codec->bits_per_coded_sample = av_get_bits_per_sample(codec->codec_id);
-            break;
-        case CODEC_ID_ADPCM_IMA_QT:
-            codec->block_align = 34*codec->channels;
-            codec->frame_size = 64;
-            break;
-        case CODEC_ID_MACE3:
-            codec->block_align = 2*codec->channels;
-            codec->frame_size = 6;
-            break;
-        case CODEC_ID_MACE6:
-            codec->block_align = 1*codec->channels;
-            codec->frame_size = 6;
-            break;
-        case CODEC_ID_GSM:
-            codec->block_align = 33;
-            codec->frame_size = 160;
-            break;
-        default:
-            break;
-        }
-        size -= 4;
-    } else {
-        /* Need the codec type */
-        codec->codec_id = aiff_codec_get_id(codec->bits_per_coded_sample);
-        codec->bits_per_coded_sample = av_get_bits_per_sample(codec->codec_id);
-    }
-
-    /* Block align needs to be computed in all cases, as the definition
-     * is specific to applications -> here we use the WAVE format definition */
-    if (!codec->block_align)
-        codec->block_align = (codec->bits_per_coded_sample * codec->channels) >> 3;
-
-    codec->bit_rate = (codec->frame_size ? codec->sample_rate/codec->frame_size :
-                       codec->sample_rate) * (codec->block_align << 3);
-
-    /* Chunk is over */
-    if (size)
-        url_fseek(pb, size, SEEK_CUR);
-
-    return num_frames;
-}
-
-static int aiff_probe(AVProbeData *p)
-{
-    /* check file header */
-    if (p->buf[0] == 'F' && p->buf[1] == 'O' &&
-        p->buf[2] == 'R' && p->buf[3] == 'M' &&
-        p->buf[8] == 'A' && p->buf[9] == 'I' &&
-        p->buf[10] == 'F' && (p->buf[11] == 'F' || p->buf[11] == 'C'))
-        return AVPROBE_SCORE_MAX;
-    else
-        return 0;
-}
-
-/* aiff input */
-static int aiff_read_header(AVFormatContext *s,
-                            AVFormatParameters *ap)
-{
-    int size, filesize;
-    int64_t offset = 0;
-    uint32_t tag;
-    unsigned version = AIFF_C_VERSION1;
-    ByteIOContext *pb = s->pb;
-    AVStream * st;
-    AIFFInputContext *aiff = s->priv_data;
-
-    /* check FORM header */
-    filesize = get_tag(pb, &tag);
-    if (filesize < 0 || tag != MKTAG('F', 'O', 'R', 'M'))
-        return AVERROR_INVALIDDATA;
-
-    /* AIFF data type */
-    tag = get_le32(pb);
-    if (tag == MKTAG('A', 'I', 'F', 'F'))       /* Got an AIFF file */
-        version = AIFF;
-    else if (tag != MKTAG('A', 'I', 'F', 'C'))  /* An AIFF-C file then */
-        return AVERROR_INVALIDDATA;
-
-    filesize -= 4;
-
-    st = av_new_stream(s, 0);
-    if (!st)
-        return AVERROR(ENOMEM);
-
-    while (filesize > 0) {
-        /* parse different chunks */
-        size = get_tag(pb, &tag);
-        if (size < 0)
-            return size;
-
-        filesize -= size + 8;
-
-        switch (tag) {
-        case MKTAG('C', 'O', 'M', 'M'):     /* Common chunk */
-            /* Then for the complete header info */
-            st->nb_frames = get_aiff_header(pb, st->codec, size, version);
-            if (st->nb_frames < 0)
-                return st->nb_frames;
-            if (offset > 0) // COMM is after SSND
-                goto got_sound;
-            break;
-        case MKTAG('F', 'V', 'E', 'R'):     /* Version chunk */
-            version = get_be32(pb);
-            break;
-        case MKTAG('N', 'A', 'M', 'E'):     /* Sample name chunk */
-            get_meta(s, "title"    , size);
-            break;
-        case MKTAG('A', 'U', 'T', 'H'):     /* Author chunk */
-            get_meta(s, "author"   , size);
-            break;
-        case MKTAG('(', 'c', ')', ' '):     /* Copyright chunk */
-            get_meta(s, "copyright", size);
-            break;
-        case MKTAG('A', 'N', 'N', 'O'):     /* Annotation chunk */
-            get_meta(s, "comment"  , size);
-            break;
-        case MKTAG('S', 'S', 'N', 'D'):     /* Sampled sound chunk */
-            aiff->data_end = url_ftell(pb) + size;
-            offset = get_be32(pb);      /* Offset of sound data */
-            get_be32(pb);               /* BlockSize... don't care */
-            offset += url_ftell(pb);    /* Compute absolute data offset */
-            if (st->codec->block_align)    /* Assume COMM already parsed */
-                goto got_sound;
-            if (url_is_streamed(pb)) {
-                av_log(s, AV_LOG_ERROR, "file is not seekable\n");
-                return -1;
-            }
-            url_fskip(pb, size - 8);
-            break;
-        case MKTAG('w', 'a', 'v', 'e'):
-            if ((uint64_t)size > (1<<30))
-                return -1;
-            st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
-            if (!st->codec->extradata)
-                return AVERROR(ENOMEM);
-            st->codec->extradata_size = size;
-            get_buffer(pb, st->codec->extradata, size);
-            break;
-        default: /* Jump */
-            if (size & 1)   /* Always even aligned */
-                size++;
-            url_fskip (pb, size);
-        }
-    }
-
-    if (!st->codec->block_align) {
-        av_log(s, AV_LOG_ERROR, "could not find COMM tag\n");
-        return -1;
-    }
-
-got_sound:
-    /* Now positioned, get the sound data start and end */
-    if (st->nb_frames)
-        s->file_size = st->nb_frames * st->codec->block_align;
-
-    av_set_pts_info(st, 64, 1, st->codec->sample_rate);
-    st->start_time = 0;
-    st->duration = st->codec->frame_size ?
-        st->nb_frames * st->codec->frame_size : st->nb_frames;
-
-    /* Position the stream at the first block */
-    url_fseek(pb, offset, SEEK_SET);
-
-    return 0;
-}
-
-#define MAX_SIZE 4096
-
-static int aiff_read_packet(AVFormatContext *s,
-                            AVPacket *pkt)
-{
-    AVStream *st = s->streams[0];
-    AIFFInputContext *aiff = s->priv_data;
-    int64_t max_size;
-    int res;
-
-    /* calculate size of remaining data */
-    max_size = aiff->data_end - url_ftell(s->pb);
-    if (max_size <= 0)
-        return AVERROR_EOF;
-
-    /* Now for that packet */
-    max_size = FFMIN(max_size, (MAX_SIZE / st->codec->block_align) * st->codec->block_align);
-    res = av_get_packet(s->pb, pkt, max_size);
-    if (res < 0)
-        return res;
-
-    /* Only one stream in an AIFF file */
-    pkt->stream_index = 0;
-    return 0;
-}
-
-AVInputFormat aiff_demuxer = {
-    "aiff",
-    NULL_IF_CONFIG_SMALL("Audio IFF"),
-    sizeof(AIFFInputContext),
-    aiff_probe,
-    aiff_read_header,
-    aiff_read_packet,
-    NULL,
-    pcm_read_seek,
-    .codec_tag= (const AVCodecTag* const []){ff_codec_aiff_tags, 0},
-};