* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/mathematics.h"
+#include "libavutil/error.h"
#include "libavcodec/avcodec.h"
#include "avformat.h"
-#include "avio_internal.h"
#include "riff.h"
-#include "libavcodec/bytestream.h"
-#include "libavutil/avassert.h"
/* Note: When encoding, the first matching tag is used, so order is
* important if multiple tags are possible for a given codec.
{ AV_CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') },
/* flipped video */
{ AV_CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') },
+ { AV_CODEC_ID_MPEG4, MKTAG('D', 'M', '4', 'V') },
{ AV_CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') },
{ AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') },
{ AV_CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') },
{ AV_CODEC_ID_ADPCM_YAMAHA, 0x0020 },
{ AV_CODEC_ID_TRUESPEECH, 0x0022 },
{ AV_CODEC_ID_GSM_MS, 0x0031 },
+ { AV_CODEC_ID_GSM_MS, 0x0032 }, /* msn audio */
{ AV_CODEC_ID_AMR_NB, 0x0038 }, /* rogue format number */
{ AV_CODEC_ID_G723_1, 0x0042 },
{ AV_CODEC_ID_ADPCM_G726, 0x0045 },
/* rogue format number */
{ AV_CODEC_ID_ADPCM_IMA_DK3, 0x0062 },
{ AV_CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
- { AV_CODEC_ID_VOXWARE, 0x0075 },
+ { AV_CODEC_ID_METASOUND, 0x0075 },
{ AV_CODEC_ID_AAC, 0x00ff },
{ AV_CODEC_ID_SIPR, 0x0130 },
{ AV_CODEC_ID_WMAV1, 0x0160 },
{ 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" },
{ 0 },
};
-void ff_get_guid(AVIOContext *s, ff_asf_guid *g)
-{
- av_assert0(sizeof(*g) == 16); //compiler will optimize this out
- if (avio_read(s, *g, sizeof(*g)) < (int)sizeof(*g))
- memset(*g, 0, sizeof(*g));
-}
-
-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;
{
return ff_codec_wav_tags;
}
-
-#if CONFIG_MUXERS
-int64_t ff_start_tag(AVIOContext *pb, const char *tag)
-{
- ffio_wfourcc(pb, tag);
- avio_wl32(pb, 0);
- return avio_tell(pb);
-}
-
-void ff_end_tag(AVIOContext *pb, int64_t start)
-{
- int64_t pos;
-
- av_assert0((start&1) == 0);
-
- pos = avio_tell(pb);
- if (pos & 1)
- avio_w8(pb, 0);
- avio_seek(pb, start - 4, SEEK_SET);
- avio_wl32(pb, (uint32_t)(pos - start));
- avio_seek(pb, FFALIGN(pos, 2), SEEK_SET);
-}
-
-/* WAVEFORMATEX header */
-/* returns the size or -1 on error */
-int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
-{
- int bps, blkalign, bytespersec, frame_size;
- int hdrsize = 18;
- int waveformatextensible;
- uint8_t temp[256];
- uint8_t *riff_extradata = temp;
- uint8_t *riff_extradata_start = temp;
-
- if (!enc->codec_tag || enc->codec_tag > 0xffff)
- return -1;
-
- /* We use the known constant frame size for the codec if known, otherwise
- * fall back on using AVCodecContext.frame_size, which is not as reliable
- * for indicating packet duration. */
- frame_size = av_get_audio_frame_duration(enc, 0);
- if (!frame_size)
- frame_size = enc->frame_size;
-
- waveformatextensible = (enc->channels > 2 && enc->channel_layout) ||
- enc->sample_rate > 48000 ||
- av_get_bits_per_sample(enc->codec_id) > 16;
-
- if (waveformatextensible)
- avio_wl16(pb, 0xfffe);
- else
- avio_wl16(pb, enc->codec_tag);
-
- avio_wl16(pb, enc->channels);
- avio_wl32(pb, enc->sample_rate);
- if (enc->codec_id == AV_CODEC_ID_ATRAC3 ||
- enc->codec_id == AV_CODEC_ID_G723_1 ||
- enc->codec_id == AV_CODEC_ID_MP2 ||
- enc->codec_id == AV_CODEC_ID_MP3 ||
- enc->codec_id == AV_CODEC_ID_GSM_MS) {
- bps = 0;
- } else {
- if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
- if (enc->bits_per_coded_sample)
- bps = enc->bits_per_coded_sample;
- else
- bps = 16; // default to 16
- }
- }
- if (bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample) {
- av_log(enc, AV_LOG_WARNING,
- "requested bits_per_coded_sample (%d) "
- "and actually stored (%d) differ\n",
- enc->bits_per_coded_sample, bps);
- }
-
- if (enc->codec_id == AV_CODEC_ID_MP2 ||
- enc->codec_id == AV_CODEC_ID_MP3) {
- /* This is wrong, but it seems many demuxers do not work if this
- * is set correctly. */
- blkalign = frame_size;
- // blkalign = 144 * enc->bit_rate/enc->sample_rate;
- } else if (enc->codec_id == AV_CODEC_ID_AC3) {
- blkalign = 3840; /* maximum bytes per frame */
- } else if (enc->codec_id == AV_CODEC_ID_AAC) {
- blkalign = 768 * enc->channels; /* maximum bytes per frame */
- } else if (enc->codec_id == AV_CODEC_ID_G723_1) {
- blkalign = 24;
- } else if (enc->block_align != 0) { /* specified by the codec */
- blkalign = enc->block_align;
- } else
- blkalign = bps * enc->channels / av_gcd(8, bps);
- if (enc->codec_id == AV_CODEC_ID_PCM_U8 ||
- enc->codec_id == AV_CODEC_ID_PCM_S24LE ||
- enc->codec_id == AV_CODEC_ID_PCM_S32LE ||
- enc->codec_id == AV_CODEC_ID_PCM_F32LE ||
- enc->codec_id == AV_CODEC_ID_PCM_F64LE ||
- enc->codec_id == AV_CODEC_ID_PCM_S16LE) {
- bytespersec = enc->sample_rate * blkalign;
- } else if (enc->codec_id == AV_CODEC_ID_G723_1) {
- bytespersec = 800;
- } else {
- bytespersec = enc->bit_rate / 8;
- }
- avio_wl32(pb, bytespersec); /* bytes per second */
- avio_wl16(pb, blkalign); /* block align */
- avio_wl16(pb, bps); /* bits per sample */
- if (enc->codec_id == AV_CODEC_ID_MP3) {
- hdrsize += 12;
- bytestream_put_le16(&riff_extradata, 1); /* wID */
- bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
- bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
- bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
- bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
- } else if (enc->codec_id == AV_CODEC_ID_MP2) {
- hdrsize += 22;
- /* fwHeadLayer */
- bytestream_put_le16(&riff_extradata, 2);
- /* dwHeadBitrate */
- bytestream_put_le32(&riff_extradata, enc->bit_rate);
- /* fwHeadMode */
- bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8);
- /* fwHeadModeExt */
- bytestream_put_le16(&riff_extradata, 0);
- /* wHeadEmphasis */
- bytestream_put_le16(&riff_extradata, 1);
- /* fwHeadFlags */
- bytestream_put_le16(&riff_extradata, 16);
- /* dwPTSLow */
- bytestream_put_le32(&riff_extradata, 0);
- /* dwPTSHigh */
- bytestream_put_le32(&riff_extradata, 0);
- } else if (enc->codec_id == AV_CODEC_ID_G723_1) {
- hdrsize += 20;
- bytestream_put_le32(&riff_extradata, 0x9ace0002); /* extradata needed for msacm g723.1 codec */
- bytestream_put_le32(&riff_extradata, 0xaea2f732);
- bytestream_put_le16(&riff_extradata, 0xacde);
- } else if (enc->codec_id == AV_CODEC_ID_GSM_MS ||
- enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
- hdrsize += 2;
- /* wSamplesPerBlock */
- bytestream_put_le16(&riff_extradata, frame_size);
- } else if (enc->extradata_size) {
- riff_extradata_start = enc->extradata;
- riff_extradata = enc->extradata + enc->extradata_size;
- hdrsize += enc->extradata_size;
- }
- /* write WAVEFORMATEXTENSIBLE extensions */
- if (waveformatextensible) {
- hdrsize += 22;
- /* 22 is WAVEFORMATEXTENSIBLE size */
- avio_wl16(pb, riff_extradata - riff_extradata_start + 22);
- /* ValidBitsPerSample || SamplesPerBlock || Reserved */
- avio_wl16(pb, bps);
- /* dwChannelMask */
- avio_wl32(pb, enc->channel_layout);
- /* GUID + next 3 */
- avio_wl32(pb, enc->codec_tag);
- avio_wl32(pb, 0x00100000);
- avio_wl32(pb, 0xAA000080);
- avio_wl32(pb, 0x719B3800);
- } else {
- avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
- }
- avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
- if (hdrsize & 1) {
- hdrsize++;
- avio_w8(pb, 0);
- }
-
- return hdrsize;
-}
-
-/* BITMAPINFOHEADER header */
-void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc,
- const AVCodecTag *tags, int for_asf)
-{
- /* size */
- avio_wl32(pb, 40 + enc->extradata_size);
- avio_wl32(pb, enc->width);
- //We always store RGB TopDown
- avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
- /* planes */
- avio_wl16(pb, 1);
- /* depth */
- avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24);
- /* compression type */
- avio_wl32(pb, enc->codec_tag);
- avio_wl32(pb, (enc->width * enc->height * (enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24)+7) / 8);
- avio_wl32(pb, 0);
- avio_wl32(pb, 0);
- avio_wl32(pb, 0);
- avio_wl32(pb, 0);
-
- avio_write(pb, enc->extradata, enc->extradata_size);
-
- if (!for_asf && enc->extradata_size & 1)
- avio_w8(pb, 0);
-}
-
-void ff_parse_specific_params(AVCodecContext *stream, int *au_rate,
- int *au_ssize, int *au_scale)
-{
- int gcd;
- int audio_frame_size;
-
- /* We use the known constant frame size for the codec if known, otherwise
- * fall back on using AVCodecContext.frame_size, which is not as reliable
- * for indicating packet duration. */
- audio_frame_size = av_get_audio_frame_duration(stream, 0);
- if (!audio_frame_size)
- audio_frame_size = stream->frame_size;
-
- *au_ssize = stream->block_align;
- if (audio_frame_size && stream->sample_rate) {
- *au_scale = audio_frame_size;
- *au_rate = stream->sample_rate;
- } else if (stream->codec_type == AVMEDIA_TYPE_VIDEO ||
- stream->codec_type == AVMEDIA_TYPE_DATA ||
- stream->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- *au_scale = stream->time_base.num;
- *au_rate = stream->time_base.den;
- } else {
- *au_scale = stream->block_align ? stream->block_align * 8 : 8;
- *au_rate = stream->bit_rate ? stream->bit_rate :
- 8 * stream->sample_rate;
- }
- gcd = av_gcd(*au_scale, *au_rate);
- *au_scale /= gcd;
- *au_rate /= gcd;
-}
-
-void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str)
-{
- int len = strlen(str);
- if (len > 0) {
- len++;
- ffio_wfourcc(pb, tag);
- avio_wl32(pb, len);
- avio_put_str(pb, str);
- if (len & 1)
- avio_w8(pb, 0);
- }
-}
-
-static const char riff_tags[][5] = {
- "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
- "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
- "IPRT", "ITRK", "ISBJ", "ISFT", "ISHP", "ISMP", "ISRC", "ISRF", "ITCH",
- { 0 }
-};
-
-static int riff_has_valid_tags(AVFormatContext *s)
-{
- int i;
-
- for (i = 0; *riff_tags[i]; i++)
- if (av_dict_get(s->metadata, riff_tags[i], NULL, AV_DICT_MATCH_CASE))
- return 1;
-
- return 0;
-}
-
-void ff_riff_write_info(AVFormatContext *s)
-{
- AVIOContext *pb = s->pb;
- int i;
- int64_t list_pos;
- AVDictionaryEntry *t = NULL;
-
- ff_metadata_conv(&s->metadata, ff_riff_info_conv, NULL);
-
- /* writing empty LIST is not nice and may cause problems */
- if (!riff_has_valid_tags(s))
- return;
-
- list_pos = ff_start_tag(pb, "LIST");
- ffio_wfourcc(pb, "INFO");
- for (i = 0; *riff_tags[i]; i++)
- if ((t = av_dict_get(s->metadata, riff_tags[i],
- NULL, AV_DICT_MATCH_CASE)))
- ff_riff_write_info_tag(s->pb, t->key, t->value);
- ff_end_tag(pb, list_pos);
-}
-#endif /* CONFIG_MUXERS */
-
-#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;
- int bps = avio_rl16(pb);
- if (bps)
- c->bits_per_coded_sample = bps;
-
- 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->sample_rate)
- 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, unsigned *esize)
-{
- int tag1;
- if(esize) *esize = avio_rl32(pb);
- else avio_rl32(pb);
- 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 (url_feof(pb)) {
- if (chunk_code || chunk_size) {
- av_log(s, AV_LOG_WARNING, "INFO subchunk truncated\n");
- return AVERROR_INVALIDDATA;
- }
- return AVERROR_EOF;
- }
- if (chunk_size > end ||
- end - chunk_size < cur ||
- chunk_size == UINT_MAX) {
- avio_seek(pb, -9, SEEK_CUR);
- 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");
- return AVERROR_INVALIDDATA;
- }
- }
-
- 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_mallocz(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_log(s, AV_LOG_WARNING,
- "premature end of file while reading INFO tag\n");
- }
-
- av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
- }
-
- return 0;
-}
-#endif /* CONFIG_DEMUXERS */
projects / ffmpeg / blobdiff