riff: Move demuxing code to a separate file.

1 files changed, 0 insertions, 204 deletions

diff --git a/libavformat/riff.c b/libavformat/riff.c
index fdee064b80..6fe310ad0a 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -20,12 +20,9 @@
  */
 
 #include "libavutil/error.h"
-#include "libavutil/log.h"
 #include "libavcodec/avcodec.h"
 #include "avformat.h"
-#include "avio_internal.h"
 #include "riff.h"
-#include "libavcodec/bytestream.h"
 
 /* Note: When encoding, the first matching tag is used, so order is
  * important if multiple tags are possible for a given codec. */
@@ -380,14 +377,6 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { AV_CODEC_ID_NONE,      0 },
 };
 
-const AVCodecGuid ff_codec_wav_guids[] = {
-    { AV_CODEC_ID_AC3,      { 0x2C, 0x80, 0x6D, 0xE0, 0x46, 0xDB, 0xCF, 0x11, 0xB4, 0xD1, 0x00, 0x80, 0x5F, 0x6C, 0xBB, 0xEA } },
-    { AV_CODEC_ID_ATRAC3P,  { 0xBF, 0xAA, 0x23, 0xE9, 0x58, 0xCB, 0x71, 0x44, 0xA1, 0x19, 0xFF, 0xFA, 0x01, 0xE4, 0xCE, 0x62 } },
-    { AV_CODEC_ID_EAC3,     { 0xAF, 0x87, 0xFB, 0xA7, 0x02, 0x2D, 0xFB, 0x42, 0xA4, 0xD4, 0x05, 0xCD, 0x93, 0x84, 0x3B, 0xDD } },
-    { AV_CODEC_ID_MP2,      { 0x2B, 0x80, 0x6D, 0xE0, 0x46, 0xDB, 0xCF, 0x11, 0xB4, 0xD1, 0x00, 0x80, 0x5F, 0x6C, 0xBB, 0xEA } },
-    { AV_CODEC_ID_NONE }
-};
-
 const AVMetadataConv ff_riff_info_conv[] = {
     { "IART", "artist"     },
     { "ICMT", "comment"    },
@@ -403,15 +392,6 @@ const AVMetadataConv ff_riff_info_conv[] = {
     { 0 },
 };
 
-enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
-{
-    int i;
-    for (i = 0; guids[i].id != AV_CODEC_ID_NONE; i++)
-        if (!ff_guidcmp(guids[i].guid, guid))
-            return guids[i].id;
-    return AV_CODEC_ID_NONE;
-}
-
 const struct AVCodecTag *avformat_get_riff_video_tags(void)
 {
     return ff_codec_bmp_tags;
@@ -421,187 +401,3 @@ const struct AVCodecTag *avformat_get_riff_audio_tags(void)
 {
     return ff_codec_wav_tags;
 }
-
-#if CONFIG_DEMUXERS
-/* We could be given one of the three possible structures here:
- * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
- * is an expansion of the previous one with the fields added
- * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
- * WAVEFORMATEX adds 'WORD  cbSize' and basically makes itself
- * an openended structure.
- */
-
-static void parse_waveformatex(AVIOContext *pb, AVCodecContext *c)
-{
-    ff_asf_guid subformat;
-    c->bits_per_coded_sample = avio_rl16(pb);
-    c->channel_layout        = avio_rl32(pb); /* dwChannelMask */
-
-    ff_get_guid(pb, &subformat);
-    if (!memcmp(subformat + 4,
-                (const uint8_t[]){ FF_MEDIASUBTYPE_BASE_GUID }, 12)) {
-        c->codec_tag = AV_RL32(subformat);
-        c->codec_id  = ff_wav_codec_get_id(c->codec_tag,
-                                           c->bits_per_coded_sample);
-    } else {
-        c->codec_id = ff_codec_guid_get_id(ff_codec_wav_guids, subformat);
-        if (!c->codec_id)
-            av_log(c, AV_LOG_WARNING,
-                   "unknown subformat:"FF_PRI_GUID"\n",
-                   FF_ARG_GUID(subformat));
-    }
-}
-
-int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
-{
-    int id;
-
-    id                 = avio_rl16(pb);
-    codec->codec_type  = AVMEDIA_TYPE_AUDIO;
-    codec->channels    = avio_rl16(pb);
-    codec->sample_rate = avio_rl32(pb);
-    codec->bit_rate    = avio_rl32(pb) * 8;
-    codec->block_align = avio_rl16(pb);
-    if (size == 14) {  /* We're dealing with plain vanilla WAVEFORMAT */
-        codec->bits_per_coded_sample = 8;
-    } else
-        codec->bits_per_coded_sample = avio_rl16(pb);
-    if (id == 0xFFFE) {
-        codec->codec_tag = 0;
-    } else {
-        codec->codec_tag = id;
-        codec->codec_id  = ff_wav_codec_get_id(id,
-                                               codec->bits_per_coded_sample);
-    }
-    if (size >= 18) {  /* We're obviously dealing with WAVEFORMATEX */
-        int cbSize = avio_rl16(pb); /* cbSize */
-        size  -= 18;
-        cbSize = FFMIN(size, cbSize);
-        if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
-            parse_waveformatex(pb, codec);
-            cbSize -= 22;
-            size   -= 22;
-        }
-        codec->extradata_size = cbSize;
-        if (cbSize > 0) {
-            av_free(codec->extradata);
-            codec->extradata = av_mallocz(codec->extradata_size +
-                                          FF_INPUT_BUFFER_PADDING_SIZE);
-            if (!codec->extradata)
-                return AVERROR(ENOMEM);
-            avio_read(pb, codec->extradata, codec->extradata_size);
-            size -= cbSize;
-        }
-
-        /* It is possible for the chunk to contain garbage at the end */
-        if (size > 0)
-            avio_skip(pb, size);
-    }
-    if (codec->codec_id == AV_CODEC_ID_AAC_LATM) {
-        /* Channels and sample_rate values are those prior to applying SBR
-         * and/or PS. */
-        codec->channels    = 0;
-        codec->sample_rate = 0;
-    }
-    /* override bits_per_coded_sample for G.726 */
-    if (codec->codec_id == AV_CODEC_ID_ADPCM_G726)
-        codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
-
-    return 0;
-}
-
-enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps)
-{
-    enum AVCodecID id;
-    id = ff_codec_get_id(ff_codec_wav_tags, tag);
-    if (id <= 0)
-        return id;
-
-    if (id == AV_CODEC_ID_PCM_S16LE)
-        id = ff_get_pcm_codec_id(bps, 0, 0, ~1);
-    else if (id == AV_CODEC_ID_PCM_F32LE)
-        id = ff_get_pcm_codec_id(bps, 1, 0,  0);
-
-    if (id == AV_CODEC_ID_ADPCM_IMA_WAV && bps == 8)
-        id = AV_CODEC_ID_PCM_ZORK;
-    return id;
-}
-
-int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
-{
-    int tag1;
-    avio_rl32(pb); /* size */
-    st->codec->width  = avio_rl32(pb);
-    st->codec->height = (int32_t)avio_rl32(pb);
-    avio_rl16(pb); /* planes */
-    st->codec->bits_per_coded_sample = avio_rl16(pb); /* depth */
-    tag1                             = avio_rl32(pb);
-    avio_rl32(pb); /* ImageSize */
-    avio_rl32(pb); /* XPelsPerMeter */
-    avio_rl32(pb); /* YPelsPerMeter */
-    avio_rl32(pb); /* ClrUsed */
-    avio_rl32(pb); /* ClrImportant */
-    return tag1;
-}
-
-int ff_read_riff_info(AVFormatContext *s, int64_t size)
-{
-    int64_t start, end, cur;
-    AVIOContext *pb = s->pb;
-
-    start = avio_tell(pb);
-    end   = start + size;
-
-    while ((cur = avio_tell(pb)) >= 0 &&
-           cur <= end - 8 /* = tag + size */) {
-        uint32_t chunk_code;
-        int64_t chunk_size;
-        char key[5] = { 0 };
-        char *value;
-
-        chunk_code = avio_rl32(pb);
-        chunk_size = avio_rl32(pb);
-
-        if (chunk_size > end ||
-            end - chunk_size < cur ||
-            chunk_size == UINT_MAX) {
-            av_log(s, AV_LOG_WARNING, "too big INFO subchunk\n");
-            break;
-        }
-
-        chunk_size += (chunk_size & 1);
-
-        if (!chunk_code) {
-            if (chunk_size)
-                avio_skip(pb, chunk_size);
-            else if (pb->eof_reached) {
-                av_log(s, AV_LOG_WARNING, "truncated file\n");
-                return AVERROR_EOF;
-            }
-            continue;
-        }
-
-        value = av_malloc(chunk_size + 1);
-        if (!value) {
-            av_log(s, AV_LOG_ERROR,
-                   "out of memory, unable to read INFO tag\n");
-            return AVERROR(ENOMEM);
-        }
-
-        AV_WL32(key, chunk_code);
-
-        if (avio_read(pb, value, chunk_size) != chunk_size) {
-            av_free(value);
-            av_log(s, AV_LOG_WARNING,
-                   "premature end of file while reading INFO tag\n");
-            break;
-        }
-
-        value[chunk_size] = 0;
-
-        av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
-    }
-
-    return 0;
-}
-#endif /* CONFIG_DEMUXERS */