* Copyright (c) 2001, 2002 Fabrice Bellard
*
* Sony Wave64 demuxer
+ * RF64 demuxer
* Copyright (c) 2009 Daniel Verkamp
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * 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 "raw.h"
+#include "internal.h"
+#include "avio_internal.h"
+#include "pcm.h"
#include "riff.h"
+#include "avio.h"
+#include "metadata.h"
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 CONFIG_WAV_MUXER
+static inline void bwf_write_bext_string(AVFormatContext *s, const char *key, int maxlen)
+{
+ AVDictionaryEntry *tag;
+ int len = 0;
+
+ 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);
+ }
+
+ ffio_fill(s->pb, 0, maxlen - len);
+}
+
+static void bwf_write_bext_chunk(AVFormatContext *s)
+{
+ 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
+
+ if (tmp_tag = av_dict_get(s->metadata, "coding_history", NULL, 0))
+ avio_put_str(s->pb, tmp_tag->value);
+
+ ff_end_tag(s->pb, bext);
+}
+
static int wav_write_header(AVFormatContext *s)
{
WAVContext *wav = s->priv_data;
- ByteIOContext *pb = s->pb;
+ 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 = 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");
- av_free(wav);
return -1;
}
ff_end_tag(pb, fmt);
if (s->streams[0]->codec->codec_tag != 0x01 /* hence for all other than PCM */
- && !url_is_streamed(s->pb)) {
+ && s->pb->seekable) {
fact = ff_start_tag(pb, "fact");
- put_le32(pb, 0);
+ 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 = ff_start_tag(pb, "data");
- put_flush_packet(pb);
+ avio_flush(pb);
return 0;
}
static int wav_write_packet(AVFormatContext *s, AVPacket *pkt)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
- put_buffer(pb, pkt->data, pkt->size);
+ 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);
static int wav_write_trailer(AVFormatContext *s)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
int64_t file_size;
- if (!url_is_streamed(s->pb)) {
+ avio_flush(pb);
+
+ if (s->pb->seekable) {
ff_end_tag(pb, wav->data);
/* 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);
+ 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);
- put_flush_packet(pb);
+ avio_flush(pb);
if(s->streams[0]->codec->codec_tag != 0x01) {
/* Update num_samps in fact chunk */
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);
- url_fseek(pb, wav->data-12, SEEK_SET);
- put_le32(pb, number_of_samples);
- url_fseek(pb, file_size, SEEK_SET);
- put_flush_packet(pb);
+ 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;
}
+
+#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,
+ .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 */
-static int64_t find_tag(ByteIOContext *pb, uint32_t tag1)
+static int64_t find_tag(AVIOContext *pb, uint32_t tag1)
{
unsigned int tag;
int64_t size;
for (;;) {
- if (url_feof(pb))
+ 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);
}
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')
- /*
- 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
- 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;
}
-/* wav input */
-static int wav_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream **st)
{
- int64_t size;
- unsigned int tag;
- ByteIOContext *pb = s->pb;
- AVStream *st;
- WAVContext *wav = s->priv_data;
-
- /* check RIFF header */
- tag = get_le32(pb);
-
- if (tag != MKTAG('R', 'I', 'F', 'F'))
- return -1;
- get_le32(pb); /* file size */
- tag = get_le32(pb);
- if (tag != MKTAG('W', 'A', 'V', 'E'))
- return -1;
+ AVIOContext *pb = s->pb;
+ int ret;
/* parse fmt header */
- size = find_tag(pb, MKTAG('f', 'm', 't', ' '));
- if (size < 0)
- return -1;
- st = av_new_stream(s, 0);
- if (!st)
+ *st = avformat_new_stream(s, NULL);
+ if (!*st)
return AVERROR(ENOMEM);
- ff_get_wav_header(pb, st->codec, size);
- st->need_parsing = AVSTREAM_PARSE_FULL;
+ ret = ff_get_wav_header(pb, (*st)->codec, size);
+ if (ret < 0)
+ return ret;
+ (*st)->need_parsing = AVSTREAM_PARSE_FULL;
- av_set_pts_info(st, 64, 1, st->codec->sample_rate);
+ avpriv_set_pts_info(*st, 64, 1, (*st)->codec->sample_rate);
- size = find_tag(pb, MKTAG('d', 'a', 't', 'a'));
- if (size < 0)
- return -1;
- wav->data_end= url_ftell(pb) + size;
return 0;
}
-/** Find chunk with w64 GUID by skipping over other chunks
- * @return the size of the found chunk
- */
-static int64_t find_guid(ByteIOContext *pb, const uint8_t guid1[16])
+static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
+ int length)
{
- uint8_t guid[16];
- int64_t size;
+ char temp[257];
+ int ret;
- while (!url_feof(pb)) {
- get_buffer(pb, guid, 16);
- size = get_le64(pb);
- if (size <= 24)
- return -1;
- if (!memcmp(guid, guid1, 16))
- return size;
- url_fskip(pb, FFALIGN(size, INT64_C(8)) - 24);
- }
- return -1;
+ 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 const uint8_t guid_data[16] = { 'd', 'a', 't', 'a',
- 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+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;
+ }
-#if CONFIG_W64_DEMUXER
+ avio_skip(s->pb, 190);
+ } else
+ avio_skip(s->pb, 254);
-static const uint8_t guid_riff[16] = { 'r', 'i', 'f', 'f',
- 0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00 };
+ if (size > 602) {
+ /* CodingHistory present */
+ size -= 602;
-static const uint8_t guid_wave[16] = { 'w', 'a', 'v', 'e',
- 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+ if (!(coding_history = av_malloc(size+1)))
+ return AVERROR(ENOMEM);
-static const uint8_t guid_fmt [16] = { 'f', 'm', 't', ' ',
- 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
+ if ((ret = avio_read(s->pb, coding_history, size)) < 0)
+ return ret;
-static int w64_probe(AVProbeData *p)
-{
- 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;
+ 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 int w64_read_header(AVFormatContext *s, AVFormatParameters *ap)
+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)
{
- int64_t size;
- ByteIOContext *pb = s->pb;
- WAVContext *wav = s->priv_data;
+ 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;
- uint8_t guid[16];
+ WAVContext *wav = s->priv_data;
+ int ret, got_fmt = 0;
+ int64_t next_tag_ofs, data_ofs = -1;
- get_buffer(pb, guid, 16);
- if (memcmp(guid, guid_riff, 16))
- return -1;
+ /* check RIFF header */
+ tag = avio_rl32(pb);
- if (get_le64(pb) < 16 + 8 + 16 + 8 + 16 + 8) /* riff + wave + fmt + sizes */
+ rf64 = tag == MKTAG('R', 'F', '6', '4');
+ if (!rf64 && tag != MKTAG('R', 'I', 'F', 'F'))
return -1;
-
- get_buffer(pb, guid, 16);
- if (memcmp(guid, guid_wave, 16)) {
- av_log(s, AV_LOG_ERROR, "could not find wave guid\n");
+ avio_rl32(pb); /* file size */
+ tag = avio_rl32(pb);
+ if (tag != MKTAG('W', 'A', 'V', 'E'))
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;
+ 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 */
}
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR(ENOMEM);
+ for (;;) {
+ size = next_tag(pb, &tag);
+ next_tag_ofs = avio_tell(pb) + size;
- /* subtract chunk header size - normal wav file doesn't count it */
- ff_get_wav_header(pb, st->codec, size - 24);
- url_fskip(pb, FFALIGN(size, INT64_C(8)) - size);
+ if (pb->eof_reached)
+ break;
- st->need_parsing = AVSTREAM_PARSE_FULL;
+ 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");
- av_set_pts_info(st, 64, 1, st->codec->sample_rate);
+ 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;
+ }
- size = find_guid(pb, guid_data);
- if (size < 0) {
- av_log(s, AV_LOG_ERROR, "could not find data guid\n");
- return -1;
+ /* 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;
}
- wav->data_end = url_ftell(pb) + size - 24;
- wav->w64 = 1;
+
+ 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);
return 0;
}
-#endif /* CONFIG_W64_DEMUXER */
+
+/** 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
AVStream *st;
WAVContext *wav = s->priv_data;
- if (url_feof(s->pb))
- return AVERROR(EIO);
st = s->streams[0];
- left = wav->data_end - url_ftell(s->pb);
+ 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(EIO);
- wav->data_end= url_ftell(s->pb) + left;
+ return AVERROR_EOF;
+ wav->data_end= avio_tell(s->pb) + left;
}
size = MAX_SIZE;
}
size = FFMIN(size, left);
ret = av_get_packet(s->pb, pkt, size);
- if (ret <= 0)
- return AVERROR(EIO);
+ if (ret < 0)
+ return ret;
pkt->stream_index = 0;
- /* note: we need to modify the packet size here to handle the last
- packet */
- pkt->size = ret;
return ret;
}
return pcm_read_seek(s, stream_index, timestamp, flags);
}
-#if CONFIG_WAV_DEMUXER
-AVInputFormat wav_demuxer = {
- "wav",
- NULL_IF_CONFIG_SMALL("WAV format"),
- sizeof(WAVContext),
- wav_probe,
- wav_read_header,
- wav_read_packet,
- NULL,
- 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
+#endif /* CONFIG_WAV_DEMUXER */
-#if CONFIG_WAV_MUXER
-AVOutputFormat wav_muxer = {
- "wav",
- NULL_IF_CONFIG_SMALL("WAV format"),
- "audio/x-wav",
- "wav",
- sizeof(WAVContext),
- CODEC_ID_PCM_S16LE,
- CODEC_ID_NONE,
- wav_write_header,
- wav_write_packet,
- wav_write_trailer,
- .codec_tag= (const AVCodecTag* const []){ff_codec_wav_tags, 0},
-};
-#endif
#if CONFIG_W64_DEMUXER
-AVInputFormat w64_demuxer = {
- "w64",
- NULL_IF_CONFIG_SMALL("Sony Wave64 format"),
- sizeof(WAVContext),
- w64_probe,
- w64_read_header,
- wav_read_packet,
- NULL,
- wav_read_seek,
+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)
+{
+ 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
+#endif /* CONFIG_W64_DEMUXER */