[FFmpeg-cvslog] r20234 - in trunk/libavformat: Makefile aiff.c aiff.h aiffenc.c

jbr subversion
Thu Oct 15 11:45:16 CEST 2009


Author: jbr
Date: Thu Oct 15 11:45:16 2009
New Revision: 20234

Log:
Split up the AIFF muxer and demuxer into separate files.

Added:
   trunk/libavformat/aiff.h   (contents, props changed)
      - copied, changed from r20232, trunk/libavformat/aiff.c
   trunk/libavformat/aiffenc.c   (contents, props changed)
      - copied, changed from r20232, trunk/libavformat/aiff.c
Modified:
   trunk/libavformat/Makefile
   trunk/libavformat/aiff.c

Modified: trunk/libavformat/Makefile
==============================================================================
--- trunk/libavformat/Makefile	Thu Oct 15 08:59:23 2009	(r20233)
+++ trunk/libavformat/Makefile	Thu Oct 15 11:45:16 2009	(r20234)
@@ -14,7 +14,7 @@ OBJS-$(CONFIG_AC3_MUXER)                
 OBJS-$(CONFIG_ADTS_MUXER)                += adtsenc.o
 OBJS-$(CONFIG_AEA_DEMUXER)               += aea.o
 OBJS-$(CONFIG_AIFF_DEMUXER)              += aiff.o riff.o raw.o
-OBJS-$(CONFIG_AIFF_MUXER)                += aiff.o riff.o
+OBJS-$(CONFIG_AIFF_MUXER)                += aiffenc.o riff.o
 OBJS-$(CONFIG_AMR_DEMUXER)               += amr.o
 OBJS-$(CONFIG_AMR_MUXER)                 += amr.o
 OBJS-$(CONFIG_APC_DEMUXER)               += apc.o

Modified: trunk/libavformat/aiff.c
==============================================================================
--- trunk/libavformat/aiff.c	Thu Oct 15 08:59:23 2009	(r20233)
+++ trunk/libavformat/aiff.c	Thu Oct 15 11:45:16 2009	(r20234)
@@ -1,5 +1,5 @@
 /*
- * AIFF/AIFF-C muxer and demuxer
+ * AIFF/AIFF-C demuxer
  * Copyright (c) 2006  Patrick Guimond
  *
  * This file is part of FFmpeg.
@@ -22,26 +22,7 @@
 #include "libavutil/intfloat_readwrite.h"
 #include "avformat.h"
 #include "raw.h"
-#include "riff.h"
-
-static const AVCodecTag codec_aiff_tags[] = {
-    { CODEC_ID_PCM_S16BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S8,       MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S24BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S32BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_F32BE,    MKTAG('f','l','3','2') },
-    { CODEC_ID_PCM_F64BE,    MKTAG('f','l','6','4') },
-    { CODEC_ID_PCM_ALAW,     MKTAG('a','l','a','w') },
-    { CODEC_ID_PCM_MULAW,    MKTAG('u','l','a','w') },
-    { CODEC_ID_MACE3,        MKTAG('M','A','C','3') },
-    { CODEC_ID_MACE6,        MKTAG('M','A','C','6') },
-    { CODEC_ID_GSM,          MKTAG('G','S','M',' ') },
-    { CODEC_ID_ADPCM_G726,   MKTAG('G','7','2','6') },
-    { CODEC_ID_PCM_S16LE,    MKTAG('s','o','w','t') },
-    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i','m','a','4') },
-    { CODEC_ID_QDM2,         MKTAG('Q','D','M','2') },
-    { 0, 0 },
-};
+#include "aiff.h"
 
 #define AIFF                    0
 #define AIFF_C_VERSION1         0xA2805140
@@ -123,7 +104,7 @@ static unsigned int get_aiff_header(Byte
     /* Got an AIFF-C? */
     if (version == AIFF_C_VERSION1) {
         codec->codec_tag = get_le32(pb);
-        codec->codec_id  = ff_codec_get_id(codec_aiff_tags, codec->codec_tag);
+        codec->codec_id  = ff_codec_get_id(ff_codec_aiff_tags, codec->codec_tag);
 
         switch (codec->codec_id) {
         case CODEC_ID_PCM_S16BE:
@@ -171,131 +152,6 @@ static unsigned int get_aiff_header(Byte
     return num_frames;
 }
 
-#if CONFIG_AIFF_MUXER
-typedef struct {
-    int64_t form;
-    int64_t frames;
-    int64_t ssnd;
-} AIFFOutputContext;
-
-static int aiff_write_header(AVFormatContext *s)
-{
-    AIFFOutputContext *aiff = s->priv_data;
-    ByteIOContext *pb = s->pb;
-    AVCodecContext *enc = s->streams[0]->codec;
-    AVExtFloat sample_rate;
-    int aifc = 0;
-
-    /* First verify if format is ok */
-    if (!enc->codec_tag)
-        return -1;
-    if (enc->codec_tag != MKTAG('N','O','N','E'))
-        aifc = 1;
-
-    /* FORM AIFF header */
-    put_tag(pb, "FORM");
-    aiff->form = url_ftell(pb);
-    put_be32(pb, 0);                    /* file length */
-    put_tag(pb, aifc ? "AIFC" : "AIFF");
-
-    if (aifc) { // compressed audio
-        enc->bits_per_coded_sample = 16;
-        if (!enc->block_align) {
-            av_log(s, AV_LOG_ERROR, "block align not set\n");
-            return -1;
-        }
-        /* Version chunk */
-        put_tag(pb, "FVER");
-        put_be32(pb, 4);
-        put_be32(pb, 0xA2805140);
-    }
-
-    /* Common chunk */
-    put_tag(pb, "COMM");
-    put_be32(pb, aifc ? 24 : 18); /* size */
-    put_be16(pb, enc->channels);  /* Number of channels */
-
-    aiff->frames = url_ftell(pb);
-    put_be32(pb, 0);              /* Number of frames */
-
-    if (!enc->bits_per_coded_sample)
-        enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
-    if (!enc->bits_per_coded_sample) {
-        av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
-        return -1;
-    }
-    if (!enc->block_align)
-        enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
-
-    put_be16(pb, enc->bits_per_coded_sample); /* Sample size */
-
-    sample_rate = av_dbl2ext((double)enc->sample_rate);
-    put_buffer(pb, (uint8_t*)&sample_rate, sizeof(sample_rate));
-
-    if (aifc) {
-        put_le32(pb, enc->codec_tag);
-        put_be16(pb, 0);
-    }
-
-    /* Sound data chunk */
-    put_tag(pb, "SSND");
-    aiff->ssnd = url_ftell(pb);         /* Sound chunk size */
-    put_be32(pb, 0);                    /* Sound samples data size */
-    put_be32(pb, 0);                    /* Data offset */
-    put_be32(pb, 0);                    /* Block-size (block align) */
-
-    av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
-
-    /* Data is starting here */
-    put_flush_packet(pb);
-
-    return 0;
-}
-
-static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    ByteIOContext *pb = s->pb;
-    put_buffer(pb, pkt->data, pkt->size);
-    return 0;
-}
-
-static int aiff_write_trailer(AVFormatContext *s)
-{
-    ByteIOContext *pb = s->pb;
-    AIFFOutputContext *aiff = s->priv_data;
-    AVCodecContext *enc = s->streams[0]->codec;
-
-    /* Chunks sizes must be even */
-    int64_t file_size, end_size;
-    end_size = file_size = url_ftell(pb);
-    if (file_size & 1) {
-        put_byte(pb, 0);
-        end_size++;
-    }
-
-    if (!url_is_streamed(s->pb)) {
-        /* File length */
-        url_fseek(pb, aiff->form, SEEK_SET);
-        put_be32(pb, file_size - aiff->form - 4);
-
-        /* Number of sample frames */
-        url_fseek(pb, aiff->frames, SEEK_SET);
-        put_be32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
-
-        /* Sound Data chunk size */
-        url_fseek(pb, aiff->ssnd, SEEK_SET);
-        put_be32(pb, file_size - aiff->ssnd - 4);
-
-        /* return to the end */
-        url_fseek(pb, end_size, SEEK_SET);
-
-        put_flush_packet(pb);
-    }
-
-    return 0;
-}
-#endif /* CONFIG_AIFF_MUXER */
-
 static int aiff_probe(AVProbeData *p)
 {
     /* check file header */
@@ -446,7 +302,6 @@ static int aiff_read_packet(AVFormatCont
     return 0;
 }
 
-#if CONFIG_AIFF_DEMUXER
 AVInputFormat aiff_demuxer = {
     "aiff",
     NULL_IF_CONFIG_SMALL("Audio IFF"),
@@ -456,22 +311,5 @@ AVInputFormat aiff_demuxer = {
     aiff_read_packet,
     NULL,
     pcm_read_seek,
-    .codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
-};
-#endif
-
-#if CONFIG_AIFF_MUXER
-AVOutputFormat aiff_muxer = {
-    "aiff",
-    NULL_IF_CONFIG_SMALL("Audio IFF"),
-    "audio/aiff",
-    "aif,aiff,afc,aifc",
-    sizeof(AIFFOutputContext),
-    CODEC_ID_PCM_S16BE,
-    CODEC_ID_NONE,
-    aiff_write_header,
-    aiff_write_packet,
-    aiff_write_trailer,
-    .codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
+    .codec_tag= (const AVCodecTag* const []){ff_codec_aiff_tags, 0},
 };
-#endif

Copied and modified: trunk/libavformat/aiff.h (from r20232, trunk/libavformat/aiff.c)
==============================================================================
--- trunk/libavformat/aiff.c	Wed Oct 14 23:41:24 2009	(r20232, copy source)
+++ trunk/libavformat/aiff.h	Thu Oct 15 11:45:16 2009	(r20234)
@@ -1,5 +1,5 @@
 /*
- * AIFF/AIFF-C muxer and demuxer
+ * AIFF/AIFF-C muxer/demuxer common header
  * Copyright (c) 2006  Patrick Guimond
  *
  * This file is part of FFmpeg.
@@ -19,12 +19,18 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/intfloat_readwrite.h"
+/**
+ * @file libavformat/aiff.h
+ * common header for AIFF muxer and demuxer
+ */
+
+#ifndef AVFORMAT_AIFF_H
+#define AVFORMAT_AIFF_H
+
 #include "avformat.h"
-#include "raw.h"
 #include "riff.h"
 
-static const AVCodecTag codec_aiff_tags[] = {
+static const AVCodecTag ff_codec_aiff_tags[] = {
     { CODEC_ID_PCM_S16BE,    MKTAG('N','O','N','E') },
     { CODEC_ID_PCM_S8,       MKTAG('N','O','N','E') },
     { CODEC_ID_PCM_S24BE,    MKTAG('N','O','N','E') },
@@ -43,435 +49,4 @@ static const AVCodecTag codec_aiff_tags[
     { 0, 0 },
 };
 
-#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(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;
-}
-
-#if CONFIG_AIFF_MUXER
-typedef struct {
-    int64_t form;
-    int64_t frames;
-    int64_t ssnd;
-} AIFFOutputContext;
-
-static int aiff_write_header(AVFormatContext *s)
-{
-    AIFFOutputContext *aiff = s->priv_data;
-    ByteIOContext *pb = s->pb;
-    AVCodecContext *enc = s->streams[0]->codec;
-    AVExtFloat sample_rate;
-    int aifc = 0;
-
-    /* First verify if format is ok */
-    if (!enc->codec_tag)
-        return -1;
-    if (enc->codec_tag != MKTAG('N','O','N','E'))
-        aifc = 1;
-
-    /* FORM AIFF header */
-    put_tag(pb, "FORM");
-    aiff->form = url_ftell(pb);
-    put_be32(pb, 0);                    /* file length */
-    put_tag(pb, aifc ? "AIFC" : "AIFF");
-
-    if (aifc) { // compressed audio
-        enc->bits_per_coded_sample = 16;
-        if (!enc->block_align) {
-            av_log(s, AV_LOG_ERROR, "block align not set\n");
-            return -1;
-        }
-        /* Version chunk */
-        put_tag(pb, "FVER");
-        put_be32(pb, 4);
-        put_be32(pb, 0xA2805140);
-    }
-
-    /* Common chunk */
-    put_tag(pb, "COMM");
-    put_be32(pb, aifc ? 24 : 18); /* size */
-    put_be16(pb, enc->channels);  /* Number of channels */
-
-    aiff->frames = url_ftell(pb);
-    put_be32(pb, 0);              /* Number of frames */
-
-    if (!enc->bits_per_coded_sample)
-        enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
-    if (!enc->bits_per_coded_sample) {
-        av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
-        return -1;
-    }
-    if (!enc->block_align)
-        enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
-
-    put_be16(pb, enc->bits_per_coded_sample); /* Sample size */
-
-    sample_rate = av_dbl2ext((double)enc->sample_rate);
-    put_buffer(pb, (uint8_t*)&sample_rate, sizeof(sample_rate));
-
-    if (aifc) {
-        put_le32(pb, enc->codec_tag);
-        put_be16(pb, 0);
-    }
-
-    /* Sound data chunk */
-    put_tag(pb, "SSND");
-    aiff->ssnd = url_ftell(pb);         /* Sound chunk size */
-    put_be32(pb, 0);                    /* Sound samples data size */
-    put_be32(pb, 0);                    /* Data offset */
-    put_be32(pb, 0);                    /* Block-size (block align) */
-
-    av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
-
-    /* Data is starting here */
-    put_flush_packet(pb);
-
-    return 0;
-}
-
-static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    ByteIOContext *pb = s->pb;
-    put_buffer(pb, pkt->data, pkt->size);
-    return 0;
-}
-
-static int aiff_write_trailer(AVFormatContext *s)
-{
-    ByteIOContext *pb = s->pb;
-    AIFFOutputContext *aiff = s->priv_data;
-    AVCodecContext *enc = s->streams[0]->codec;
-
-    /* Chunks sizes must be even */
-    int64_t file_size, end_size;
-    end_size = file_size = url_ftell(pb);
-    if (file_size & 1) {
-        put_byte(pb, 0);
-        end_size++;
-    }
-
-    if (!url_is_streamed(s->pb)) {
-        /* File length */
-        url_fseek(pb, aiff->form, SEEK_SET);
-        put_be32(pb, file_size - aiff->form - 4);
-
-        /* Number of sample frames */
-        url_fseek(pb, aiff->frames, SEEK_SET);
-        put_be32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
-
-        /* Sound Data chunk size */
-        url_fseek(pb, aiff->ssnd, SEEK_SET);
-        put_be32(pb, file_size - aiff->ssnd - 4);
-
-        /* return to the end */
-        url_fseek(pb, end_size, SEEK_SET);
-
-        put_flush_packet(pb);
-    }
-
-    return 0;
-}
-#endif /* CONFIG_AIFF_MUXER */
-
-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;
-}
-
-#if CONFIG_AIFF_DEMUXER
-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 []){codec_aiff_tags, 0},
-};
-#endif
-
-#if CONFIG_AIFF_MUXER
-AVOutputFormat aiff_muxer = {
-    "aiff",
-    NULL_IF_CONFIG_SMALL("Audio IFF"),
-    "audio/aiff",
-    "aif,aiff,afc,aifc",
-    sizeof(AIFFOutputContext),
-    CODEC_ID_PCM_S16BE,
-    CODEC_ID_NONE,
-    aiff_write_header,
-    aiff_write_packet,
-    aiff_write_trailer,
-    .codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
-};
-#endif
+#endif /* AVFORMAT_AIFF_H */

Copied and modified: trunk/libavformat/aiffenc.c (from r20232, trunk/libavformat/aiff.c)
==============================================================================
--- trunk/libavformat/aiff.c	Wed Oct 14 23:41:24 2009	(r20232, copy source)
+++ trunk/libavformat/aiffenc.c	Thu Oct 15 11:45:16 2009	(r20234)
@@ -1,5 +1,5 @@
 /*
- * AIFF/AIFF-C muxer and demuxer
+ * AIFF/AIFF-C muxer
  * Copyright (c) 2006  Patrick Guimond
  *
  * This file is part of FFmpeg.
@@ -19,159 +19,9 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/intfloat_readwrite.h"
 #include "avformat.h"
-#include "raw.h"
-#include "riff.h"
-
-static const AVCodecTag codec_aiff_tags[] = {
-    { CODEC_ID_PCM_S16BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S8,       MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S24BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_S32BE,    MKTAG('N','O','N','E') },
-    { CODEC_ID_PCM_F32BE,    MKTAG('f','l','3','2') },
-    { CODEC_ID_PCM_F64BE,    MKTAG('f','l','6','4') },
-    { CODEC_ID_PCM_ALAW,     MKTAG('a','l','a','w') },
-    { CODEC_ID_PCM_MULAW,    MKTAG('u','l','a','w') },
-    { CODEC_ID_MACE3,        MKTAG('M','A','C','3') },
-    { CODEC_ID_MACE6,        MKTAG('M','A','C','6') },
-    { CODEC_ID_GSM,          MKTAG('G','S','M',' ') },
-    { CODEC_ID_ADPCM_G726,   MKTAG('G','7','2','6') },
-    { CODEC_ID_PCM_S16LE,    MKTAG('s','o','w','t') },
-    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i','m','a','4') },
-    { CODEC_ID_QDM2,         MKTAG('Q','D','M','2') },
-    { 0, 0 },
-};
-
-#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(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;
-}
+#include "aiff.h"
 
-#if CONFIG_AIFF_MUXER
 typedef struct {
     int64_t form;
     int64_t frames;
@@ -294,173 +144,7 @@ static int aiff_write_trailer(AVFormatCo
 
     return 0;
 }
-#endif /* CONFIG_AIFF_MUXER */
 
-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;
-}
-
-#if CONFIG_AIFF_DEMUXER
-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 []){codec_aiff_tags, 0},
-};
-#endif
-
-#if CONFIG_AIFF_MUXER
 AVOutputFormat aiff_muxer = {
     "aiff",
     NULL_IF_CONFIG_SMALL("Audio IFF"),
@@ -472,6 +156,5 @@ AVOutputFormat aiff_muxer = {
     aiff_write_header,
     aiff_write_packet,
     aiff_write_trailer,
-    .codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
+    .codec_tag= (const AVCodecTag* const []){ff_codec_aiff_tags, 0},
 };
-#endif



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