X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Faiff.c;h=4343e79c48b90842facd8d822ea3f293c43f4197;hb=28da7981d0965558d490780a984cb927019f0c06;hp=1fcfd881b48b74f120457d62f4f69913772e7ad0;hpb=3a957df49e636a3ddd8cbc2bd82917c733573384;p=ffmpeg

diff --git a/libavformat/aiff.c b/libavformat/aiff.c
index 1fcfd881b48..4343e79c48b 100644
--- a/libavformat/aiff.c
+++ b/libavformat/aiff.c
@@ -29,15 +29,14 @@ static const AVCodecTag codec_aiff_tags[] = {
     { CODEC_ID_PCM_S24BE, MKTAG('N','O','N','E') },
     { CODEC_ID_PCM_S32BE, MKTAG('N','O','N','E') },
     { CODEC_ID_PCM_ALAW, MKTAG('a','l','a','w') },
-    { CODEC_ID_PCM_ALAW, MKTAG('A','L','A','W') },
     { CODEC_ID_PCM_MULAW, MKTAG('u','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 },
 };
 
@@ -105,10 +104,8 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
     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);
@@ -122,15 +119,20 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
     /* Got an AIFF-C? */
     if (version == AIFF_C_VERSION1) {
         codec->codec_tag = get_le32(pb);
-        codec->codec_id  = codec_get_id (codec_aiff_tags, codec->codec_tag);
+        codec->codec_id  = 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_sample);
+            codec->codec_id = aiff_codec_get_id(codec->bits_per_sample);
             codec->bits_per_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:
+        case CODEC_ID_MACE6:
+            codec->frame_size = 6;
             break;
         default:
             break;
@@ -138,7 +140,7 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
         size -= 4;
     } else {
         /* Need the codec type */
-        codec->codec_id = aiff_codec_get_id (codec->bits_per_sample);
+        codec->codec_id = aiff_codec_get_id(codec->bits_per_sample);
         codec->bits_per_sample = av_get_bits_per_sample(codec->codec_id);
     }
 
@@ -150,7 +152,8 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
     if (!codec->block_align)
         codec->block_align = (codec->bits_per_sample * codec->channels) >> 3;
 
-    codec->bit_rate = codec->sample_rate * (codec->block_align << 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)
@@ -175,10 +178,8 @@ static int aiff_write_header(AVFormatContext *s)
     int aifc = 0;
 
     /* First verify if format is ok */
-    if (!enc->codec_tag) {
+    if (!enc->codec_tag)
         return -1;
-    }
-
     if (enc->codec_tag != MKTAG('N','O','N','E'))
         aifc = 1;
 
@@ -188,7 +189,12 @@ static int aiff_write_header(AVFormatContext *s)
     put_be32(pb, 0);                    /* file length */
     put_tag(pb, aifc ? "AIFC" : "AIFF");
 
-    if (aifc) {
+    if (aifc) { // compressed audio
+        enc->bits_per_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);
@@ -198,10 +204,10 @@ static int aiff_write_header(AVFormatContext *s)
     /* Common chunk */
     put_tag(pb, "COMM");
     put_be32(pb, aifc ? 24 : 18); /* size */
-    put_be16(pb, enc->channels);        /* Number of channels */
+    put_be16(pb, enc->channels);  /* Number of channels */
 
     aiff->frames = url_ftell(pb);
-    put_be32(pb, 0);                    /* Number of frames */
+    put_be32(pb, 0);              /* Number of frames */
 
     if (!enc->bits_per_sample)
         enc->bits_per_sample = av_get_bits_per_sample(enc->codec_id);
@@ -261,15 +267,15 @@ static int aiff_write_trailer(AVFormatContext *s)
     if (!url_is_streamed(s->pb)) {
         /* File length */
         url_fseek(pb, aiff->form, SEEK_SET);
-        put_be32(pb, (uint32_t)(file_size - aiff->form - 4));
+        put_be32(pb, file_size - aiff->form - 4);
 
         /* Number of sample frames */
         url_fseek(pb, aiff->frames, SEEK_SET);
-        put_be32(pb, ((uint32_t)(file_size-aiff->ssnd-12))/enc->block_align);
+        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, (uint32_t)(file_size - aiff->ssnd - 4));
+        put_be32(pb, file_size - aiff->ssnd - 4);
 
         /* return to the end */
         url_fseek(pb, end_size, SEEK_SET);
@@ -331,52 +337,54 @@ static int aiff_read_header(AVFormatContext *s,
         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 (pb, s->title, sizeof(s->title), size);
-                break;
-
-            case MKTAG('A', 'U', 'T', 'H'):     /* Author chunk */
-                get_meta (pb, s->author, sizeof(s->author), size);
-                break;
-
-            case MKTAG('(', 'c', ')', ' '):     /* Copyright chunk */
-                get_meta (pb, s->copyright, sizeof(s->copyright), size);
-                break;
-
-            case MKTAG('A', 'N', 'N', 'O'):     /* Annotation chunk */
-                get_meta (pb, s->comment, sizeof(s->comment), size);
-                break;
-
-            case MKTAG('S', 'S', 'N', 'D'):     /* Sampled sound chunk */
-                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->codec_id)    /* 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;
-
-            default: /* Jump */
-                if (size & 1)   /* Always even aligned */
-                    size++;
-                url_fskip (pb, size);
+        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 (pb, s->title, sizeof(s->title), size);
+            break;
+        case MKTAG('A', 'U', 'T', 'H'):     /* Author chunk */
+            get_meta (pb, s->author, sizeof(s->author), size);
+            break;
+        case MKTAG('(', 'c', ')', ' '):     /* Copyright chunk */
+            get_meta (pb, s->copyright, sizeof(s->copyright), size);
+            break;
+        case MKTAG('A', 'N', 'N', 'O'):     /* Annotation chunk */
+            get_meta (pb, s->comment, sizeof(s->comment), size);
+            break;
+        case MKTAG('S', 'S', 'N', 'D'):     /* Sampled sound chunk */
+            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->codec_id)    /* 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);
         }
     }
 
@@ -390,7 +398,8 @@ got_sound:
 
     av_set_pts_info(st, 64, 1, st->codec->sample_rate);
     st->start_time = 0;
-    st->duration = st->nb_frames;
+    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);
@@ -420,11 +429,6 @@ static int aiff_read_packet(AVFormatContext *s,
     return 0;
 }
 
-static int aiff_read_close(AVFormatContext *s)
-{
-    return 0;
-}
-
 static int aiff_read_seek(AVFormatContext *s,
                           int stream_index, int64_t timestamp, int flags)
 {
@@ -439,7 +443,7 @@ AVInputFormat aiff_demuxer = {
     aiff_probe,
     aiff_read_header,
     aiff_read_packet,
-    aiff_read_close,
+    NULL,
     aiff_read_seek,
     .codec_tag= (const AVCodecTag*[]){codec_aiff_tags, 0},
 };