-/*
- * WAV encoder and decoder
- * Copyright (c) 2001, 2002 Fabrice Bellard.
+/*
+ * WAV muxer and demuxer
+ * Copyright (c) 2001, 2002 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * Sony Wave64 demuxer
+ * RF64 demuxer
+ * Copyright (c) 2009 Daniel Verkamp
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * Libav 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavutil/avassert.h"
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
#include "avformat.h"
-#include "avi.h"
-
-const CodecTag codec_wav_tags[] = {
- { CODEC_ID_MP2, 0x50 },
- { CODEC_ID_MP3, 0x55 },
- { CODEC_ID_AC3, 0x2000 },
- { CODEC_ID_PCM_S16LE, 0x01 },
- { CODEC_ID_PCM_U8, 0x01 }, /* must come after s16le in this list */
- { CODEC_ID_PCM_ALAW, 0x06 },
- { CODEC_ID_PCM_MULAW, 0x07 },
- { CODEC_ID_ADPCM_MS, 0x02 },
- { CODEC_ID_ADPCM_IMA_WAV, 0x11 },
- { CODEC_ID_ADPCM_G726, 0x45 },
- { CODEC_ID_ADPCM_IMA_DK4, 0x61 }, /* rogue format number */
- { CODEC_ID_ADPCM_IMA_DK3, 0x62 }, /* rogue format number */
- { CODEC_ID_WMAV1, 0x160 },
- { CODEC_ID_WMAV2, 0x161 },
- { CODEC_ID_AAC, 0x706d },
- { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
- { CODEC_ID_SONIC, 0x2048 },
- { CODEC_ID_SONIC_LS, 0x2048 },
- { CODEC_ID_ADPCM_CT, 0x200 },
- { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
- { 0, 0 },
-};
+#include "internal.h"
+#include "avio_internal.h"
+#include "pcm.h"
+#include "riff.h"
+#include "avio.h"
+#include "metadata.h"
-#ifdef CONFIG_ENCODERS
-/* WAVEFORMATEX header */
-/* returns the size or -1 on error */
-int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
-{
- int bps, blkalign, bytespersec;
- int hdrsize = 18;
+typedef struct {
+ const AVClass *class;
+ int64_t data;
+ int64_t data_end;
+ int64_t minpts;
+ int64_t maxpts;
+ int last_duration;
+ int w64;
+ int write_bext;
+} WAVContext;
- if(!enc->codec_tag)
- enc->codec_tag = codec_get_tag(codec_wav_tags, enc->codec_id);
- if(!enc->codec_tag)
- return -1;
+#if CONFIG_WAV_MUXER
+static inline void bwf_write_bext_string(AVFormatContext *s, const char *key, int maxlen)
+{
+ AVDictionaryEntry *tag;
+ int len = 0;
- put_le16(pb, enc->codec_tag);
- put_le16(pb, enc->channels);
- put_le32(pb, enc->sample_rate);
- if (enc->codec_id == CODEC_ID_PCM_U8 ||
- enc->codec_id == CODEC_ID_PCM_ALAW ||
- enc->codec_id == CODEC_ID_PCM_MULAW) {
- bps = 8;
- } else if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
- bps = 0;
- } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS) {
- bps = 4;
- } else {
- bps = 16;
- }
-
- if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
- blkalign = enc->frame_size; //this is wrong, but seems many demuxers dont work if this is set correctly
- //blkalign = 144 * enc->bit_rate/enc->sample_rate;
- } else if (enc->block_align != 0) { /* specified by the codec */
- blkalign = enc->block_align;
- } else
- blkalign = enc->channels*bps >> 3;
- if (enc->codec_id == CODEC_ID_PCM_U8 ||
- enc->codec_id == CODEC_ID_PCM_S16LE) {
- bytespersec = enc->sample_rate * blkalign;
- } else {
- bytespersec = enc->bit_rate / 8;
- }
- put_le32(pb, bytespersec); /* bytes per second */
- put_le16(pb, blkalign); /* block align */
- put_le16(pb, bps); /* bits per sample */
- if (enc->codec_id == CODEC_ID_MP3) {
- put_le16(pb, 12); /* wav_extra_size */
- hdrsize += 12;
- put_le16(pb, 1); /* wID */
- put_le32(pb, 2); /* fdwFlags */
- put_le16(pb, 1152); /* nBlockSize */
- put_le16(pb, 1); /* nFramesPerBlock */
- put_le16(pb, 1393); /* nCodecDelay */
- } else if (enc->codec_id == CODEC_ID_MP2) {
- put_le16(pb, 22); /* wav_extra_size */
- hdrsize += 22;
- put_le16(pb, 2); /* fwHeadLayer */
- put_le32(pb, enc->bit_rate); /* dwHeadBitrate */
- put_le16(pb, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
- put_le16(pb, 0); /* fwHeadModeExt */
- put_le16(pb, 1); /* wHeadEmphasis */
- put_le16(pb, 16); /* fwHeadFlags */
- put_le32(pb, 0); /* dwPTSLow */
- put_le32(pb, 0); /* dwPTSHigh */
- } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
- put_le16(pb, 2); /* wav_extra_size */
- hdrsize += 2;
- put_le16(pb, ((enc->block_align - 4 * enc->channels) / (4 * enc->channels)) * 8 + 1); /* wSamplesPerBlock */
- } else if(enc->extradata_size){
- put_le16(pb, enc->extradata_size);
- put_buffer(pb, enc->extradata, enc->extradata_size);
- hdrsize += enc->extradata_size;
- if(hdrsize&1){
- hdrsize++;
- put_byte(pb, 0);
- }
- } else {
- hdrsize -= 2;
+ if (tag = av_dict_get(s->metadata, key, NULL, 0)) {
+ len = strlen(tag->value);
+ len = FFMIN(len, maxlen);
+ avio_write(s->pb, tag->value, len);
}
- return hdrsize;
+ ffio_fill(s->pb, 0, maxlen - len);
}
-#endif //CONFIG_ENCODERS
-
-/* 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.
- */
-void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
+
+static void bwf_write_bext_chunk(AVFormatContext *s)
{
- int id;
-
- id = get_le16(pb);
- codec->codec_type = CODEC_TYPE_AUDIO;
- codec->codec_tag = id;
- codec->channels = get_le16(pb);
- codec->sample_rate = get_le32(pb);
- codec->bit_rate = get_le32(pb) * 8;
- codec->block_align = get_le16(pb);
- if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
- codec->bits_per_sample = 8;
- }else
- codec->bits_per_sample = get_le16(pb);
- codec->codec_id = wav_codec_get_id(id, codec->bits_per_sample);
-
- if (size > 16) { /* We're obviously dealing with WAVEFORMATEX */
- codec->extradata_size = get_le16(pb);
- if (codec->extradata_size > 0) {
- if (codec->extradata_size > size - 18)
- codec->extradata_size = size - 18;
- codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- get_buffer(pb, codec->extradata, codec->extradata_size);
- } else
- codec->extradata_size = 0;
-
- /* It is possible for the chunk to contain garbage at the end */
- if (size - codec->extradata_size - 18 > 0)
- url_fskip(pb, size - codec->extradata_size - 18);
- }
-}
+ AVDictionaryEntry *tmp_tag;
+ uint64_t time_reference = 0;
+ int64_t bext = ff_start_tag(s->pb, "bext");
+
+ bwf_write_bext_string(s, "description", 256);
+ bwf_write_bext_string(s, "originator", 32);
+ bwf_write_bext_string(s, "originator_reference", 32);
+ bwf_write_bext_string(s, "origination_date", 10);
+ bwf_write_bext_string(s, "origination_time", 8);
+
+ if (tmp_tag = av_dict_get(s->metadata, "time_reference", NULL, 0))
+ time_reference = strtoll(tmp_tag->value, NULL, 10);
+ avio_wl64(s->pb, time_reference);
+ avio_wl16(s->pb, 1); // set version to 1
+
+ if (tmp_tag = av_dict_get(s->metadata, "umid", NULL, 0)) {
+ unsigned char umidpart_str[17] = {0};
+ int i;
+ uint64_t umidpart;
+ int len = strlen(tmp_tag->value+2);
+
+ for (i = 0; i < len/16; i++) {
+ memcpy(umidpart_str, tmp_tag->value + 2 + (i*16), 16);
+ umidpart = strtoll(umidpart_str, NULL, 16);
+ avio_wb64(s->pb, umidpart);
+ }
+ ffio_fill(s->pb, 0, 64 - i*8);
+ } else
+ ffio_fill(s->pb, 0, 64); // zero UMID
+ ffio_fill(s->pb, 0, 190); // Reserved
-int wav_codec_get_id(unsigned int tag, int bps)
-{
- int id;
- id = codec_get_id(codec_wav_tags, tag);
- if (id <= 0)
- return id;
- /* handle specific u8 codec */
- if (id == CODEC_ID_PCM_S16LE && bps == 8)
- id = CODEC_ID_PCM_U8;
- return id;
-}
+ if (tmp_tag = av_dict_get(s->metadata, "coding_history", NULL, 0))
+ avio_put_str(s->pb, tmp_tag->value);
-#ifdef CONFIG_ENCODERS
-typedef struct {
- offset_t data;
-} WAVContext;
+ ff_end_tag(s->pb, bext);
+}
static int wav_write_header(AVFormatContext *s)
{
WAVContext *wav = s->priv_data;
- ByteIOContext *pb = &s->pb;
- offset_t fmt;
+ AVIOContext *pb = s->pb;
+ int64_t fmt, fact;
- put_tag(pb, "RIFF");
- put_le32(pb, 0); /* file length */
- put_tag(pb, "WAVE");
+ ffio_wfourcc(pb, "RIFF");
+ avio_wl32(pb, 0); /* file length */
+ ffio_wfourcc(pb, "WAVE");
/* format header */
- fmt = start_tag(pb, "fmt ");
- if (put_wav_header(pb, &s->streams[0]->codec) < 0) {
- av_free(wav);
+ fmt = ff_start_tag(pb, "fmt ");
+ if (ff_put_wav_header(pb, s->streams[0]->codec) < 0) {
+ av_log(s, AV_LOG_ERROR, "%s codec not supported in WAVE format\n",
+ s->streams[0]->codec->codec ? s->streams[0]->codec->codec->name : "NONE");
return -1;
}
- end_tag(pb, fmt);
+ ff_end_tag(pb, fmt);
+
+ if (s->streams[0]->codec->codec_tag != 0x01 /* hence for all other than PCM */
+ && s->pb->seekable) {
+ fact = ff_start_tag(pb, "fact");
+ avio_wl32(pb, 0);
+ ff_end_tag(pb, fact);
+ }
- av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec.sample_rate);
+ if (wav->write_bext)
+ bwf_write_bext_chunk(s);
+
+ avpriv_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
+ wav->maxpts = wav->last_duration = 0;
+ wav->minpts = INT64_MAX;
/* data header */
- wav->data = start_tag(pb, "data");
-
- put_flush_packet(pb);
+ wav->data = ff_start_tag(pb, "data");
+
+ avio_flush(pb);
return 0;
}
static int wav_write_packet(AVFormatContext *s, AVPacket *pkt)
{
- ByteIOContext *pb = &s->pb;
- put_buffer(pb, pkt->data, pkt->size);
+ AVIOContext *pb = s->pb;
+ WAVContext *wav = s->priv_data;
+ avio_write(pb, pkt->data, pkt->size);
+ if(pkt->pts != AV_NOPTS_VALUE) {
+ wav->minpts = FFMIN(wav->minpts, pkt->pts);
+ wav->maxpts = FFMAX(wav->maxpts, pkt->pts);
+ wav->last_duration = pkt->duration;
+ } else
+ av_log(s, AV_LOG_ERROR, "wav_write_packet: NOPTS\n");
return 0;
}
static int wav_write_trailer(AVFormatContext *s)
{
- ByteIOContext *pb = &s->pb;
- WAVContext *wav = s->priv_data;
- offset_t file_size;
+ AVIOContext *pb = s->pb;
+ WAVContext *wav = s->priv_data;
+ int64_t file_size;
- if (!url_is_streamed(&s->pb)) {
- end_tag(pb, wav->data);
+ avio_flush(pb);
- /* update file size */
- file_size = url_ftell(pb);
- url_fseek(pb, 4, SEEK_SET);
- put_le32(pb, (uint32_t)(file_size - 8));
- url_fseek(pb, file_size, SEEK_SET);
+ if (s->pb->seekable) {
+ ff_end_tag(pb, wav->data);
- put_flush_packet(pb);
+ /* update file size */
+ file_size = avio_tell(pb);
+ avio_seek(pb, 4, SEEK_SET);
+ avio_wl32(pb, (uint32_t)(file_size - 8));
+ avio_seek(pb, file_size, SEEK_SET);
+
+ avio_flush(pb);
+
+ if(s->streams[0]->codec->codec_tag != 0x01) {
+ /* Update num_samps in fact chunk */
+ int number_of_samples;
+ number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
+ s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
+ s->streams[0]->time_base.den);
+ avio_seek(pb, wav->data-12, SEEK_SET);
+ avio_wl32(pb, number_of_samples);
+ avio_seek(pb, file_size, SEEK_SET);
+ avio_flush(pb);
+ }
}
return 0;
}
-#endif //CONFIG_ENCODERS
+
+#define OFFSET(x) offsetof(WAVContext, x)
+#define ENC AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "write_bext", "Write BEXT chunk.", OFFSET(write_bext), AV_OPT_TYPE_INT, { 0 }, 0, 1, ENC },
+ { NULL },
+};
+
+static const AVClass wav_muxer_class = {
+ .class_name = "WAV muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_wav_muxer = {
+ .name = "wav",
+ .long_name = NULL_IF_CONFIG_SMALL("WAV format"),
+ .mime_type = "audio/x-wav",
+ .extensions = "wav",
+ .priv_data_size = sizeof(WAVContext),
+ .audio_codec = CODEC_ID_PCM_S16LE,
+ .video_codec = CODEC_ID_NONE,
+ .write_header = wav_write_header,
+ .write_packet = wav_write_packet,
+ .write_trailer = wav_write_trailer,
+ .flags = AVFMT_TS_NONSTRICT,
+ .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
+ .priv_class = &wav_muxer_class,
+};
+#endif /* CONFIG_WAV_MUXER */
+
+
+#if CONFIG_WAV_DEMUXER
+
+static int64_t next_tag(AVIOContext *pb, uint32_t *tag)
+{
+ *tag = avio_rl32(pb);
+ return avio_rl32(pb);
+}
/* return the size of the found tag */
-/* XXX: > 2GB ? */
-static int find_tag(ByteIOContext *pb, uint32_t tag1)
+static int64_t find_tag(AVIOContext *pb, uint32_t tag1)
{
unsigned int tag;
- int size;
+ int64_t size;
- for(;;) {
- if (url_feof(pb))
+ for (;;) {
+ if (pb->eof_reached)
return -1;
- tag = get_le32(pb);
- size = get_le32(pb);
+ size = next_tag(pb, &tag);
if (tag == tag1)
break;
- url_fseek(pb, size, SEEK_CUR);
+ avio_skip(pb, size);
}
- if (size < 0)
- size = 0x7fffffff;
return size;
}
/* check file header */
if (p->buf_size <= 32)
return 0;
- if (p->buf[0] == 'R' && p->buf[1] == 'I' &&
- p->buf[2] == 'F' && p->buf[3] == 'F' &&
- p->buf[8] == 'W' && p->buf[9] == 'A' &&
- p->buf[10] == 'V' && p->buf[11] == 'E')
- return AVPROBE_SCORE_MAX;
- else
- return 0;
+ if (!memcmp(p->buf + 8, "WAVE", 4)) {
+ if (!memcmp(p->buf, "RIFF", 4))
+ /*
+ Since ACT demuxer has standard WAV header at top of it's own,
+ returning score is decreased to avoid probe conflict
+ between ACT and WAV.
+ */
+ return AVPROBE_SCORE_MAX - 1;
+ else if (!memcmp(p->buf, "RF64", 4) &&
+ !memcmp(p->buf + 12, "ds64", 4))
+ return AVPROBE_SCORE_MAX;
+ }
+ return 0;
+}
+
+static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream **st)
+{
+ AVIOContext *pb = s->pb;
+ int ret;
+
+ /* parse fmt header */
+ *st = avformat_new_stream(s, NULL);
+ if (!*st)
+ return AVERROR(ENOMEM);
+
+ ret = ff_get_wav_header(pb, (*st)->codec, size);
+ if (ret < 0)
+ return ret;
+ (*st)->need_parsing = AVSTREAM_PARSE_FULL;
+
+ avpriv_set_pts_info(*st, 64, 1, (*st)->codec->sample_rate);
+
+ return 0;
+}
+
+static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
+ int length)
+{
+ char temp[257];
+ int ret;
+
+ av_assert0(length <= sizeof(temp));
+ if ((ret = avio_read(s->pb, temp, length)) < 0)
+ return ret;
+
+ temp[length] = 0;
+
+ if (strlen(temp))
+ return av_dict_set(&s->metadata, key, temp, 0);
+
+ return 0;
+}
+
+static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
+{
+ char temp[131], *coding_history;
+ int ret, x;
+ uint64_t time_reference;
+ int64_t umid_parts[8], umid_mask = 0;
+
+ if ((ret = wav_parse_bext_string(s, "description", 256)) < 0 ||
+ (ret = wav_parse_bext_string(s, "originator", 32)) < 0 ||
+ (ret = wav_parse_bext_string(s, "originator_reference", 32)) < 0 ||
+ (ret = wav_parse_bext_string(s, "origination_date", 10)) < 0 ||
+ (ret = wav_parse_bext_string(s, "origination_time", 8)) < 0)
+ return ret;
+
+ time_reference = avio_rl64(s->pb);
+ snprintf(temp, sizeof(temp), "%"PRIu64, time_reference);
+ if ((ret = av_dict_set(&s->metadata, "time_reference", temp, 0)) < 0)
+ return ret;
+
+ /* check if version is >= 1, in which case an UMID may be present */
+ if (avio_rl16(s->pb) >= 1) {
+ for (x = 0; x < 8; x++)
+ umid_mask |= umid_parts[x] = avio_rb64(s->pb);
+
+ if (umid_mask) {
+ /* the string formatting below is per SMPTE 330M-2004 Annex C */
+ if (umid_parts[4] == 0 && umid_parts[5] == 0 && umid_parts[6] == 0 && umid_parts[7] == 0) {
+ /* basic UMID */
+ snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
+ umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3]);
+ } else {
+ /* extended UMID */
+ snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
+ "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
+ umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3],
+ umid_parts[4], umid_parts[5], umid_parts[6], umid_parts[7]);
+ }
+
+ if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0)
+ return ret;
+ }
+
+ avio_skip(s->pb, 190);
+ } else
+ avio_skip(s->pb, 254);
+
+ if (size > 602) {
+ /* CodingHistory present */
+ size -= 602;
+
+ if (!(coding_history = av_malloc(size+1)))
+ return AVERROR(ENOMEM);
+
+ if ((ret = avio_read(s->pb, coding_history, size)) < 0)
+ return ret;
+
+ coding_history[size] = 0;
+ if ((ret = av_dict_set(&s->metadata, "coding_history", coding_history,
+ AV_DICT_DONT_STRDUP_VAL)) < 0)
+ return ret;
+ }
+
+ return 0;
}
+static const AVMetadataConv wav_metadata_conv[] = {
+ {"description", "comment" },
+ {"originator", "encoded_by" },
+ {"origination_date", "date" },
+ {"origination_time", "creation_time"},
+ {0},
+};
+
/* wav input */
-static int wav_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int wav_read_header(AVFormatContext *s)
{
- int size;
- unsigned int tag;
- ByteIOContext *pb = &s->pb;
+ int64_t size, av_uninit(data_size);
+ int64_t sample_count=0;
+ int rf64;
+ uint32_t tag, list_type;
+ AVIOContext *pb = s->pb;
AVStream *st;
+ WAVContext *wav = s->priv_data;
+ int ret, got_fmt = 0;
+ int64_t next_tag_ofs, data_ofs = -1;
/* check RIFF header */
- tag = get_le32(pb);
+ tag = avio_rl32(pb);
- if (tag != MKTAG('R', 'I', 'F', 'F'))
+ rf64 = tag == MKTAG('R', 'F', '6', '4');
+ if (!rf64 && tag != MKTAG('R', 'I', 'F', 'F'))
return -1;
- get_le32(pb); /* file size */
- tag = get_le32(pb);
+ avio_rl32(pb); /* file size */
+ tag = avio_rl32(pb);
if (tag != MKTAG('W', 'A', 'V', 'E'))
return -1;
-
- /* parse fmt header */
- size = find_tag(pb, MKTAG('f', 'm', 't', ' '));
- if (size < 0)
- return -1;
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- get_wav_header(pb, &st->codec, size);
- st->need_parsing = 1;
+ if (rf64) {
+ if (avio_rl32(pb) != MKTAG('d', 's', '6', '4'))
+ return -1;
+ size = avio_rl32(pb);
+ if (size < 16)
+ return -1;
+ avio_rl64(pb); /* RIFF size */
+ data_size = avio_rl64(pb);
+ sample_count = avio_rl64(pb);
+ if (data_size < 0 || sample_count < 0) {
+ av_log(s, AV_LOG_ERROR, "negative data_size and/or sample_count in "
+ "ds64: data_size = %"PRId64", sample_count = %"PRId64"\n",
+ data_size, sample_count);
+ return AVERROR_INVALIDDATA;
+ }
+ avio_skip(pb, size - 16); /* skip rest of ds64 chunk */
+ }
- av_set_pts_info(st, 64, 1, st->codec.sample_rate);
+ for (;;) {
+ size = next_tag(pb, &tag);
+ next_tag_ofs = avio_tell(pb) + size;
+
+ if (pb->eof_reached)
+ break;
+
+ switch (tag) {
+ case MKTAG('f', 'm', 't', ' '):
+ /* only parse the first 'fmt ' tag found */
+ if (!got_fmt && (ret = wav_parse_fmt_tag(s, size, &st) < 0)) {
+ return ret;
+ } else if (got_fmt)
+ av_log(s, AV_LOG_WARNING, "found more than one 'fmt ' tag\n");
+
+ got_fmt = 1;
+ break;
+ case MKTAG('d', 'a', 't', 'a'):
+ if (!got_fmt) {
+ av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'data' tag\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (rf64) {
+ next_tag_ofs = wav->data_end = avio_tell(pb) + data_size;
+ } else {
+ data_size = size;
+ next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX;
+ }
+
+ data_ofs = avio_tell(pb);
+
+ /* don't look for footer metadata if we can't seek or if we don't
+ * know where the data tag ends
+ */
+ if (!pb->seekable || (!rf64 && !size))
+ goto break_loop;
+ break;
+ case MKTAG('f','a','c','t'):
+ if (!sample_count)
+ sample_count = avio_rl32(pb);
+ break;
+ case MKTAG('b','e','x','t'):
+ if ((ret = wav_parse_bext_tag(s, size)) < 0)
+ return ret;
+ break;
+ case MKTAG('L', 'I', 'S', 'T'):
+ list_type = avio_rl32(pb);
+ if (size <= 4) {
+ av_log(s, AV_LOG_ERROR, "too short LIST");
+ return AVERROR_INVALIDDATA;
+ }
+ switch (list_type) {
+ case MKTAG('I', 'N', 'F', 'O'):
+ if ((ret = ff_read_riff_info(s, size - 4)) < 0)
+ return ret;
+ }
+ break;
+ }
+
+ /* seek to next tag unless we know that we'll run into EOF */
+ if ((avio_size(pb) > 0 && next_tag_ofs >= avio_size(pb)) ||
+ avio_seek(pb, next_tag_ofs, SEEK_SET) < 0) {
+ break;
+ }
+ }
+break_loop:
+ if (data_ofs < 0) {
+ av_log(s, AV_LOG_ERROR, "no 'data' tag found\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avio_seek(pb, data_ofs, SEEK_SET);
+
+ if (!sample_count && st->codec->channels && av_get_bits_per_sample(st->codec->codec_id))
+ sample_count = (data_size<<3) / (st->codec->channels * (uint64_t)av_get_bits_per_sample(st->codec->codec_id));
+ if (sample_count)
+ st->duration = sample_count;
+
+ ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
+ ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
- size = find_tag(pb, MKTAG('d', 'a', 't', 'a'));
- if (size < 0)
- return -1;
return 0;
}
+/** Find chunk with w64 GUID by skipping over other chunks
+ * @return the size of the found chunk
+ */
+static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16])
+{
+ uint8_t guid[16];
+ int64_t size;
+
+ while (!pb->eof_reached) {
+ avio_read(pb, guid, 16);
+ size = avio_rl64(pb);
+ if (size <= 24)
+ return -1;
+ if (!memcmp(guid, guid1, 16))
+ return size;
+ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24);
+ }
+ return -1;
+}
+
+static const uint8_t guid_data[16] = { 'd', 'a', 't', 'a',
+ 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+
#define MAX_SIZE 4096
static int wav_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
int ret, size;
+ int64_t left;
AVStream *st;
+ WAVContext *wav = s->priv_data;
- if (url_feof(&s->pb))
- return AVERROR_IO;
st = s->streams[0];
+ left = wav->data_end - avio_tell(s->pb);
+ if (left <= 0){
+ if (CONFIG_W64_DEMUXER && wav->w64)
+ left = find_guid(s->pb, guid_data) - 24;
+ else
+ left = find_tag(s->pb, MKTAG('d', 'a', 't', 'a'));
+ if (left < 0)
+ return AVERROR_EOF;
+ wav->data_end= avio_tell(s->pb) + left;
+ }
+
size = MAX_SIZE;
- if (st->codec.block_align > 1) {
- if (size < st->codec.block_align)
- size = st->codec.block_align;
- size = (size / st->codec.block_align) * st->codec.block_align;
+ if (st->codec->block_align > 1) {
+ if (size < st->codec->block_align)
+ size = st->codec->block_align;
+ size = (size / st->codec->block_align) * st->codec->block_align;
}
- if (av_new_packet(pkt, size))
- return AVERROR_IO;
+ size = FFMIN(size, left);
+ ret = av_get_packet(s->pb, pkt, size);
+ if (ret < 0)
+ return ret;
pkt->stream_index = 0;
- ret = get_buffer(&s->pb, pkt->data, pkt->size);
- if (ret < 0)
- av_free_packet(pkt);
- /* note: we need to modify the packet size here to handle the last
- packet */
- pkt->size = ret;
return ret;
}
-static int wav_read_close(AVFormatContext *s)
-{
- return 0;
-}
-
-static int wav_read_seek(AVFormatContext *s,
+static int wav_read_seek(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
AVStream *st;
st = s->streams[0];
- switch(st->codec.codec_id) {
+ switch (st->codec->codec_id) {
case CODEC_ID_MP2:
case CODEC_ID_MP3:
case CODEC_ID_AC3:
default:
break;
}
- return pcm_read_seek(s, stream_index, timestamp, flags);
+ return ff_pcm_read_seek(s, stream_index, timestamp, flags);
}
-
-static AVInputFormat wav_iformat = {
- "wav",
- "wav format",
- 0,
- wav_probe,
- wav_read_header,
- wav_read_packet,
- wav_read_close,
- wav_read_seek,
+AVInputFormat ff_wav_demuxer = {
+ .name = "wav",
+ .long_name = NULL_IF_CONFIG_SMALL("WAV format"),
+ .priv_data_size = sizeof(WAVContext),
+ .read_probe = wav_probe,
+ .read_header = wav_read_header,
+ .read_packet = wav_read_packet,
+ .read_seek = wav_read_seek,
+ .flags = AVFMT_GENERIC_INDEX,
+ .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
};
+#endif /* CONFIG_WAV_DEMUXER */
-#ifdef CONFIG_ENCODERS
-static AVOutputFormat wav_oformat = {
- "wav",
- "wav format",
- "audio/x-wav",
- "wav",
- sizeof(WAVContext),
- CODEC_ID_PCM_S16LE,
- CODEC_ID_NONE,
- wav_write_header,
- wav_write_packet,
- wav_write_trailer,
-};
-#endif //CONFIG_ENCODERS
-int ff_wav_init(void)
+#if CONFIG_W64_DEMUXER
+static const uint8_t guid_riff[16] = { 'r', 'i', 'f', 'f',
+ 0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00 };
+
+static const uint8_t guid_wave[16] = { 'w', 'a', 'v', 'e',
+ 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+
+static const uint8_t guid_fmt [16] = { 'f', 'm', 't', ' ',
+ 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+
+static int w64_probe(AVProbeData *p)
{
- av_register_input_format(&wav_iformat);
-#ifdef CONFIG_ENCODERS
- av_register_output_format(&wav_oformat);
-#endif //CONFIG_ENCODERS
+ if (p->buf_size <= 40)
+ return 0;
+ if (!memcmp(p->buf, guid_riff, 16) &&
+ !memcmp(p->buf + 24, guid_wave, 16))
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
+}
+
+static int w64_read_header(AVFormatContext *s)
+{
+ int64_t size;
+ AVIOContext *pb = s->pb;
+ WAVContext *wav = s->priv_data;
+ AVStream *st;
+ uint8_t guid[16];
+ int ret;
+
+ avio_read(pb, guid, 16);
+ if (memcmp(guid, guid_riff, 16))
+ return -1;
+
+ if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8) /* riff + wave + fmt + sizes */
+ return -1;
+
+ avio_read(pb, guid, 16);
+ if (memcmp(guid, guid_wave, 16)) {
+ av_log(s, AV_LOG_ERROR, "could not find wave guid\n");
+ return -1;
+ }
+
+ size = find_guid(pb, guid_fmt);
+ if (size < 0) {
+ av_log(s, AV_LOG_ERROR, "could not find fmt guid\n");
+ return -1;
+ }
+
+ st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+
+ /* subtract chunk header size - normal wav file doesn't count it */
+ ret = ff_get_wav_header(pb, st->codec, size - 24);
+ if (ret < 0)
+ return ret;
+ avio_skip(pb, FFALIGN(size, INT64_C(8)) - size);
+
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+
+ avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
+
+ size = find_guid(pb, guid_data);
+ if (size < 0) {
+ av_log(s, AV_LOG_ERROR, "could not find data guid\n");
+ return -1;
+ }
+ wav->data_end = avio_tell(pb) + size - 24;
+ wav->w64 = 1;
+
return 0;
}
+
+AVInputFormat ff_w64_demuxer = {
+ .name = "w64",
+ .long_name = NULL_IF_CONFIG_SMALL("Sony Wave64 format"),
+ .priv_data_size = sizeof(WAVContext),
+ .read_probe = w64_probe,
+ .read_header = w64_read_header,
+ .read_packet = wav_read_packet,
+ .read_seek = wav_read_seek,
+ .flags = AVFMT_GENERIC_INDEX,
+ .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
+};
+#endif /* CONFIG_W64_DEMUXER */
projects / ffmpeg / blobdiff