| /* | |
| * WAV demuxer | |
| * Copyright (c) 2001, 2002 Fabrice Bellard | |
| * | |
| * Sony Wave64 demuxer | |
| * RF64 demuxer | |
| * Copyright (c) 2009 Daniel Verkamp | |
| * | |
| * BW64 demuxer | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg 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, | |
| * 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 | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include <stdint.h> | |
| #include "config_components.h" | |
| #include "libavutil/avassert.h" | |
| #include "libavutil/dict.h" | |
| #include "libavutil/intreadwrite.h" | |
| #include "libavutil/log.h" | |
| #include "libavutil/mathematics.h" | |
| #include "libavutil/opt.h" | |
| #include "libavcodec/internal.h" | |
| #include "avformat.h" | |
| #include "avio.h" | |
| #include "avio_internal.h" | |
| #include "demux.h" | |
| #include "id3v2.h" | |
| #include "internal.h" | |
| #include "metadata.h" | |
| #include "pcm.h" | |
| #include "riff.h" | |
| #include "w64.h" | |
| #include "spdif.h" | |
| typedef struct WAVDemuxContext { | |
| const AVClass *class; | |
| int64_t data_end; | |
| int w64; | |
| AVStream *vst; | |
| int64_t smv_data_ofs; | |
| int smv_block_size; | |
| int smv_frames_per_jpeg; | |
| int smv_block; | |
| int smv_last_stream; | |
| int smv_eof; | |
| int audio_eof; | |
| int ignore_length; | |
| int max_size; | |
| int spdif; | |
| int smv_given_first; | |
| int unaligned; // e.g. if an odd number of bytes ID3 tag was prepended | |
| int rifx; // RIFX: integer byte order for parameters is big endian | |
| } WAVDemuxContext; | |
| #define OFFSET(x) offsetof(WAVDemuxContext, x) | |
| #define DEC AV_OPT_FLAG_DECODING_PARAM | |
| static const AVOption demux_options[] = { | |
| #define W64_DEMUXER_OPTIONS_OFFSET (1 * CONFIG_WAV_DEMUXER) | |
| #if CONFIG_WAV_DEMUXER | |
| { "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, | |
| #endif | |
| { "max_size", "max size of single packet", OFFSET(max_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1 << 22, DEC }, | |
| { NULL }, | |
| }; | |
| static void set_max_size(AVStream *st, WAVDemuxContext *wav) | |
| { | |
| if (wav->max_size <= 0) { | |
| int max_size = ff_pcm_default_packet_size(st->codecpar); | |
| wav->max_size = max_size < 0 ? 4096 : max_size; | |
| } | |
| } | |
| static void set_spdif(AVFormatContext *s, WAVDemuxContext *wav) | |
| { | |
| if (CONFIG_SPDIF_DEMUXER && s->streams[0]->codecpar->codec_tag == 1) { | |
| enum AVCodecID codec; | |
| int len = 1<<16; | |
| int ret = ffio_ensure_seekback(s->pb, len); | |
| if (ret >= 0) { | |
| uint8_t *buf = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE); | |
| if (!buf) { | |
| ret = AVERROR(ENOMEM); | |
| } else { | |
| int64_t pos = avio_tell(s->pb); | |
| len = ret = avio_read(s->pb, buf, len); | |
| if (len >= 0) { | |
| ret = ff_spdif_probe(buf, len, &codec); | |
| if (ret > AVPROBE_SCORE_EXTENSION) { | |
| s->streams[0]->codecpar->codec_id = codec; | |
| wav->spdif = 1; | |
| } | |
| } | |
| avio_seek(s->pb, pos, SEEK_SET); | |
| av_free(buf); | |
| } | |
| } | |
| if (ret < 0) | |
| av_log(s, AV_LOG_WARNING, "Cannot check for SPDIF\n"); | |
| } | |
| } | |
| #if CONFIG_WAV_DEMUXER | |
| static int64_t next_tag(AVIOContext *pb, uint32_t *tag, int big_endian) | |
| { | |
| *tag = avio_rl32(pb); | |
| if (!big_endian) { | |
| return avio_rl32(pb); | |
| } else { | |
| return avio_rb32(pb); | |
| } | |
| } | |
| /* RIFF chunks are always at even offsets relative to where they start. */ | |
| static int64_t wav_seek_tag(WAVDemuxContext * wav, AVIOContext *s, int64_t offset, int whence) | |
| { | |
| offset += offset < INT64_MAX && offset + wav->unaligned & 1; | |
| return avio_seek(s, offset, whence); | |
| } | |
| /* return the size of the found tag */ | |
| static int64_t find_tag(WAVDemuxContext * wav, AVIOContext *pb, uint32_t tag1) | |
| { | |
| unsigned int tag; | |
| int64_t size; | |
| for (;;) { | |
| if (avio_feof(pb)) | |
| return AVERROR_EOF; | |
| size = next_tag(pb, &tag, wav->rifx); | |
| if (tag == tag1) | |
| break; | |
| wav_seek_tag(wav, pb, size, SEEK_CUR); | |
| } | |
| return size; | |
| } | |
| static int wav_probe(const AVProbeData *p) | |
| { | |
| /* check file header */ | |
| if (p->buf_size <= 32) | |
| return 0; | |
| if (!memcmp(p->buf + 8, "WAVE", 4)) { | |
| if (!memcmp(p->buf, "RIFF", 4) || !memcmp(p->buf, "RIFX", 4)) | |
| /* Since the ACT demuxer has a standard WAV header at the top of | |
| * its own, the returned score is decreased to avoid a probe | |
| * conflict between ACT and WAV. */ | |
| return AVPROBE_SCORE_MAX - 1; | |
| else if ((!memcmp(p->buf, "RF64", 4) || | |
| !memcmp(p->buf, "BW64", 4)) && | |
| !memcmp(p->buf + 12, "ds64", 4)) | |
| return AVPROBE_SCORE_MAX; | |
| } | |
| return 0; | |
| } | |
| static void handle_stream_probing(AVStream *st) | |
| { | |
| if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) { | |
| FFStream *const sti = ffstream(st); | |
| sti->request_probe = AVPROBE_SCORE_EXTENSION; | |
| sti->probe_packets = FFMIN(sti->probe_packets, 32); | |
| } | |
| } | |
| static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream *st) | |
| { | |
| AVIOContext *pb = s->pb; | |
| WAVDemuxContext *wav = s->priv_data; | |
| int ret; | |
| /* parse fmt header */ | |
| ret = ff_get_wav_header(s, pb, st->codecpar, size, wav->rifx); | |
| if (ret < 0) | |
| return ret; | |
| handle_stream_probing(st); | |
| ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; | |
| avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| return 0; | |
| } | |
| static int wav_parse_xma2_tag(AVFormatContext *s, int64_t size, AVStream *st) | |
| { | |
| AVIOContext *pb = s->pb; | |
| int version, num_streams, i, channels = 0, ret; | |
| if (size < 36) | |
| return AVERROR_INVALIDDATA; | |
| st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| st->codecpar->codec_id = AV_CODEC_ID_XMA2; | |
| ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; | |
| version = avio_r8(pb); | |
| if (version != 3 && version != 4) | |
| return AVERROR_INVALIDDATA; | |
| num_streams = avio_r8(pb); | |
| if (size != (32 + ((version==3)?0:8) + 4*num_streams)) | |
| return AVERROR_INVALIDDATA; | |
| avio_skip(pb, 10); | |
| st->codecpar->sample_rate = avio_rb32(pb); | |
| if (version == 4) | |
| avio_skip(pb, 8); | |
| avio_skip(pb, 4); | |
| st->duration = avio_rb32(pb); | |
| avio_skip(pb, 8); | |
| for (i = 0; i < num_streams; i++) { | |
| channels += avio_r8(pb); | |
| avio_skip(pb, 3); | |
| } | |
| av_channel_layout_uninit(&st->codecpar->ch_layout); | |
| st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; | |
| st->codecpar->ch_layout.nb_channels = channels; | |
| if (st->codecpar->ch_layout.nb_channels <= 0 || st->codecpar->sample_rate <= 0) | |
| return AVERROR_INVALIDDATA; | |
| avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| avio_seek(pb, -size, SEEK_CUR); | |
| if ((ret = ff_get_extradata(s, st->codecpar, pb, size)) < 0) | |
| return ret; | |
| 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 = ffio_read_size(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 | |
| "%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 = ffio_read_size(s->pb, coding_history, size)) < 0) { | |
| av_free(coding_history); | |
| 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) | |
| { | |
| int64_t size, av_uninit(data_size); | |
| int64_t sample_count = 0; | |
| int rf64 = 0, bw64 = 0; | |
| uint32_t tag; | |
| AVIOContext *pb = s->pb; | |
| AVStream *st = NULL; | |
| WAVDemuxContext *wav = s->priv_data; | |
| int ret, got_fmt = 0, got_xma2 = 0; | |
| int64_t next_tag_ofs, data_ofs = -1; | |
| wav->unaligned = avio_tell(s->pb) & 1; | |
| wav->smv_data_ofs = -1; | |
| /* read chunk ID */ | |
| tag = avio_rl32(pb); | |
| switch (tag) { | |
| case MKTAG('R', 'I', 'F', 'F'): | |
| break; | |
| case MKTAG('R', 'I', 'F', 'X'): | |
| wav->rifx = 1; | |
| break; | |
| case MKTAG('R', 'F', '6', '4'): | |
| rf64 = 1; | |
| break; | |
| case MKTAG('B', 'W', '6', '4'): | |
| bw64 = 1; | |
| break; | |
| default: | |
| av_log(s, AV_LOG_ERROR, "invalid start code %s in RIFF header\n", | |
| av_fourcc2str(tag)); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| /* read chunk size */ | |
| avio_rl32(pb); | |
| /* read format */ | |
| if (avio_rl32(pb) != MKTAG('W', 'A', 'V', 'E')) { | |
| av_log(s, AV_LOG_ERROR, "invalid format in RIFF header\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| if (rf64 || bw64) { | |
| if (avio_rl32(pb) != MKTAG('d', 's', '6', '4')) | |
| return AVERROR_INVALIDDATA; | |
| size = avio_rl32(pb); | |
| if (size < 24) | |
| return AVERROR_INVALIDDATA; | |
| 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 - 24); /* skip rest of ds64 chunk */ | |
| } | |
| /* Create the audio stream now so that its index is always zero */ | |
| st = avformat_new_stream(s, NULL); | |
| if (!st) | |
| return AVERROR(ENOMEM); | |
| for (;;) { | |
| AVStream *vst; | |
| size = next_tag(pb, &tag, wav->rifx); | |
| next_tag_ofs = avio_tell(pb) + size; | |
| if (avio_feof(pb)) | |
| break; | |
| switch (tag) { | |
| case MKTAG('f', 'm', 't', ' '): | |
| /* only parse the first 'fmt ' tag found */ | |
| if (!got_xma2 && !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('X', 'M', 'A', '2'): | |
| /* only parse the first 'XMA2' tag found */ | |
| if (!got_fmt && !got_xma2 && (ret = wav_parse_xma2_tag(s, size, st)) < 0) { | |
| return ret; | |
| } else if (got_xma2) | |
| av_log(s, AV_LOG_WARNING, "found more than one 'XMA2' tag\n"); | |
| got_xma2 = 1; | |
| break; | |
| case MKTAG('d', 'a', 't', 'a'): | |
| if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) && !got_fmt && !got_xma2) { | |
| av_log(s, AV_LOG_ERROR, | |
| "found no 'fmt ' tag before the 'data' tag\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| if (rf64 || bw64) { | |
| next_tag_ofs = wav->data_end = av_sat_add64(avio_tell(pb), data_size); | |
| } else if (size != 0xFFFFFFFF) { | |
| data_size = size; | |
| next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX; | |
| } else { | |
| av_log(s, AV_LOG_WARNING, "Ignoring maximum wav data size, " | |
| "file may be invalid\n"); | |
| data_size = 0; | |
| next_tag_ofs = wav->data_end = 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 & AVIO_SEEKABLE_NORMAL) || (!(rf64 && !bw64) && !size)) | |
| goto break_loop; | |
| break; | |
| case MKTAG('f', 'a', 'c', 't'): | |
| if (!sample_count) | |
| sample_count = (!wav->rifx ? avio_rl32(pb) : avio_rb32(pb)); | |
| break; | |
| case MKTAG('b', 'e', 'x', 't'): | |
| if ((ret = wav_parse_bext_tag(s, size)) < 0) | |
| return ret; | |
| break; | |
| case MKTAG('S','M','V','0'): | |
| if (!got_fmt) { | |
| av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'SMV0' tag\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| // SMV file, a wav file with video appended. | |
| if (size != MKTAG('0','2','0','0')) { | |
| av_log(s, AV_LOG_ERROR, "Unknown SMV version found\n"); | |
| goto break_loop; | |
| } | |
| av_log(s, AV_LOG_DEBUG, "Found SMV data\n"); | |
| wav->smv_given_first = 0; | |
| vst = avformat_new_stream(s, NULL); | |
| if (!vst) | |
| return AVERROR(ENOMEM); | |
| wav->vst = vst; | |
| avio_r8(pb); | |
| vst->id = 1; | |
| vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; | |
| vst->codecpar->codec_id = AV_CODEC_ID_SMVJPEG; | |
| vst->codecpar->width = avio_rl24(pb); | |
| vst->codecpar->height = avio_rl24(pb); | |
| if ((ret = ff_alloc_extradata(vst->codecpar, 4)) < 0) { | |
| av_log(s, AV_LOG_ERROR, "Could not allocate extradata.\n"); | |
| return ret; | |
| } | |
| size = avio_rl24(pb); | |
| wav->smv_data_ofs = avio_tell(pb) + (size - 5) * 3; | |
| avio_rl24(pb); | |
| wav->smv_block_size = avio_rl24(pb); | |
| if (!wav->smv_block_size) | |
| return AVERROR_INVALIDDATA; | |
| avpriv_set_pts_info(vst, 32, 1, avio_rl24(pb)); | |
| vst->duration = avio_rl24(pb); | |
| avio_rl24(pb); | |
| avio_rl24(pb); | |
| wav->smv_frames_per_jpeg = avio_rl24(pb); | |
| if (wav->smv_frames_per_jpeg > 65536) { | |
| av_log(s, AV_LOG_ERROR, "too many frames per jpeg\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| AV_WL32(vst->codecpar->extradata, wav->smv_frames_per_jpeg); | |
| goto break_loop; | |
| case MKTAG('L', 'I', 'S', 'T'): | |
| case MKTAG('l', 'i', 's', 't'): | |
| if (size < 4) { | |
| av_log(s, AV_LOG_ERROR, "too short LIST tag\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| switch (avio_rl32(pb)) { | |
| case MKTAG('I', 'N', 'F', 'O'): | |
| ff_read_riff_info(s, size - 4); | |
| break; | |
| case MKTAG('a', 'd', 't', 'l'): | |
| if (s->nb_chapters > 0) { | |
| while (avio_tell(pb) < next_tag_ofs && | |
| !avio_feof(pb)) { | |
| char cue_label[512]; | |
| unsigned id, sub_size; | |
| if (avio_rl32(pb) != MKTAG('l', 'a', 'b', 'l')) | |
| break; | |
| sub_size = avio_rl32(pb); | |
| if (sub_size < 5) | |
| break; | |
| id = avio_rl32(pb); | |
| avio_get_str(pb, sub_size - 4, cue_label, sizeof(cue_label)); | |
| avio_skip(pb, avio_tell(pb) & 1); | |
| for (int i = 0; i < s->nb_chapters; i++) { | |
| if (s->chapters[i]->id == id) { | |
| av_dict_set(&s->chapters[i]->metadata, "title", cue_label, 0); | |
| break; | |
| } | |
| } | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| case MKTAG('I', 'D', '3', ' '): | |
| case MKTAG('i', 'd', '3', ' '): { | |
| ID3v2ExtraMeta *id3v2_extra_meta; | |
| ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, 0); | |
| if (id3v2_extra_meta) { | |
| ff_id3v2_parse_apic(s, id3v2_extra_meta); | |
| ff_id3v2_parse_chapters(s, id3v2_extra_meta); | |
| ff_id3v2_parse_priv(s, id3v2_extra_meta); | |
| } | |
| ff_id3v2_free_extra_meta(&id3v2_extra_meta); | |
| } | |
| break; | |
| case MKTAG('c', 'u', 'e', ' '): | |
| if (size >= 4 && got_fmt && st->codecpar->sample_rate > 0) { | |
| AVRational tb = {1, st->codecpar->sample_rate}; | |
| unsigned nb_cues = avio_rl32(pb); | |
| if (size >= nb_cues * 24LL + 4LL) { | |
| for (int i = 0; i < nb_cues; i++) { | |
| unsigned offset, id = avio_rl32(pb); | |
| if (avio_feof(pb)) | |
| return AVERROR_INVALIDDATA; | |
| avio_skip(pb, 16); | |
| offset = avio_rl32(pb); | |
| if (!avpriv_new_chapter(s, id, tb, offset, AV_NOPTS_VALUE, NULL)) | |
| return AVERROR(ENOMEM); | |
| } | |
| } | |
| } | |
| 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)) || | |
| wav_seek_tag(wav, pb, next_tag_ofs, SEEK_SET) < 0) { | |
| break; | |
| } | |
| } | |
| break_loop: | |
| if (!got_fmt && !got_xma2) { | |
| av_log(s, AV_LOG_ERROR, "no 'fmt ' or 'XMA2' tag found\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| 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 (data_size > (INT64_MAX>>3)) { | |
| av_log(s, AV_LOG_WARNING, "Data size %"PRId64" is too large\n", data_size); | |
| data_size = 0; | |
| } | |
| if ( st->codecpar->bit_rate > 0 && data_size > 0 | |
| && st->codecpar->sample_rate > 0 | |
| && sample_count > 0 && st->codecpar->ch_layout.nb_channels > 1 | |
| && sample_count % st->codecpar->ch_layout.nb_channels == 0) { | |
| if (fabs(8.0 * data_size * st->codecpar->ch_layout.nb_channels * st->codecpar->sample_rate / | |
| sample_count /st->codecpar->bit_rate - 1.0) < 0.3) | |
| sample_count /= st->codecpar->ch_layout.nb_channels; | |
| } | |
| if (data_size > 0 && sample_count && st->codecpar->ch_layout.nb_channels && | |
| (data_size << 3) / sample_count / st->codecpar->ch_layout.nb_channels > st->codecpar->bits_per_coded_sample + 1) { | |
| av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count); | |
| sample_count = 0; | |
| } | |
| /* G.729 hack (for Ticket4577) | |
| * FIXME: Come up with cleaner, more general solution */ | |
| if (st->codecpar->codec_id == AV_CODEC_ID_G729 && sample_count && (data_size << 3) > sample_count) { | |
| av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count); | |
| sample_count = 0; | |
| } | |
| if (!sample_count || av_get_exact_bits_per_sample(st->codecpar->codec_id) > 0) | |
| if ( st->codecpar->ch_layout.nb_channels | |
| && data_size | |
| && av_get_bits_per_sample(st->codecpar->codec_id) | |
| && wav->data_end <= avio_size(pb)) | |
| sample_count = (data_size << 3) | |
| / | |
| (st->codecpar->ch_layout.nb_channels * (uint64_t)av_get_bits_per_sample(st->codecpar->codec_id)); | |
| if (sample_count) | |
| st->duration = sample_count; | |
| if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S32LE && | |
| st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 && | |
| st->codecpar->bits_per_coded_sample == 32 && | |
| st->codecpar->extradata_size == 2 && | |
| AV_RL16(st->codecpar->extradata) == 1) { | |
| st->codecpar->codec_id = AV_CODEC_ID_PCM_F16LE; | |
| st->codecpar->bits_per_coded_sample = 16; | |
| } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE && | |
| st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 && | |
| st->codecpar->bits_per_coded_sample == 24) { | |
| st->codecpar->codec_id = AV_CODEC_ID_PCM_F24LE; | |
| } else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 || | |
| st->codecpar->codec_id == AV_CODEC_ID_XMA2) { | |
| st->codecpar->block_align = 2048; | |
| } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->ch_layout.nb_channels > 2 && | |
| st->codecpar->block_align < INT_MAX / st->codecpar->ch_layout.nb_channels) { | |
| st->codecpar->block_align *= st->codecpar->ch_layout.nb_channels; | |
| } | |
| ff_metadata_conv_ctx(s, NULL, wav_metadata_conv); | |
| ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv); | |
| set_spdif(s, wav); | |
| set_max_size(st, wav); | |
| 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 (!avio_feof(pb)) { | |
| avio_read(pb, guid, 16); | |
| size = avio_rl64(pb); | |
| if (size <= 24 || size > INT64_MAX - 8) | |
| return AVERROR_INVALIDDATA; | |
| if (!memcmp(guid, guid1, 16)) | |
| return size; | |
| avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24); | |
| } | |
| return AVERROR_EOF; | |
| } | |
| static int wav_read_packet(AVFormatContext *s, AVPacket *pkt) | |
| { | |
| int ret, size; | |
| int64_t left; | |
| WAVDemuxContext *wav = s->priv_data; | |
| AVStream *st = s->streams[0]; | |
| if (CONFIG_SPDIF_DEMUXER && wav->spdif == 1) | |
| return ff_spdif_read_packet(s, pkt); | |
| if (wav->smv_data_ofs > 0) { | |
| int64_t audio_dts, video_dts; | |
| AVStream *vst = wav->vst; | |
| smv_retry: | |
| audio_dts = (int32_t)ffstream( st)->cur_dts; | |
| video_dts = (int32_t)ffstream(vst)->cur_dts; | |
| if (audio_dts != AV_NOPTS_VALUE && video_dts != AV_NOPTS_VALUE) { | |
| /*We always return a video frame first to get the pixel format first*/ | |
| wav->smv_last_stream = wav->smv_given_first ? | |
| av_compare_ts(video_dts, vst->time_base, | |
| audio_dts, st->time_base) > 0 : 0; | |
| wav->smv_given_first = 1; | |
| } | |
| wav->smv_last_stream = !wav->smv_last_stream; | |
| wav->smv_last_stream |= wav->audio_eof; | |
| wav->smv_last_stream &= !wav->smv_eof; | |
| if (wav->smv_last_stream) { | |
| uint64_t old_pos = avio_tell(s->pb); | |
| uint64_t new_pos = wav->smv_data_ofs + | |
| wav->smv_block * (int64_t)wav->smv_block_size; | |
| if (avio_seek(s->pb, new_pos, SEEK_SET) < 0) { | |
| ret = AVERROR_EOF; | |
| goto smv_out; | |
| } | |
| size = avio_rl24(s->pb); | |
| if (size > wav->smv_block_size) { | |
| ret = AVERROR_EOF; | |
| goto smv_out; | |
| } | |
| ret = av_get_packet(s->pb, pkt, size); | |
| if (ret < 0) | |
| goto smv_out; | |
| pkt->pos -= 3; | |
| pkt->pts = wav->smv_block * wav->smv_frames_per_jpeg; | |
| pkt->duration = wav->smv_frames_per_jpeg; | |
| wav->smv_block++; | |
| pkt->stream_index = vst->index; | |
| smv_out: | |
| avio_seek(s->pb, old_pos, SEEK_SET); | |
| if (ret == AVERROR_EOF) { | |
| wav->smv_eof = 1; | |
| goto smv_retry; | |
| } | |
| return ret; | |
| } | |
| } | |
| left = wav->data_end - avio_tell(s->pb); | |
| if (wav->ignore_length) | |
| left = INT_MAX; | |
| if (left <= 0) { | |
| if (CONFIG_W64_DEMUXER && wav->w64) | |
| left = find_guid(s->pb, ff_w64_guid_data) - 24; | |
| else | |
| left = find_tag(wav, s->pb, MKTAG('d', 'a', 't', 'a')); | |
| if (left < 0) { | |
| wav->audio_eof = 1; | |
| if (wav->smv_data_ofs > 0 && !wav->smv_eof) | |
| goto smv_retry; | |
| return AVERROR_EOF; | |
| } | |
| if (INT64_MAX - left < avio_tell(s->pb)) | |
| return AVERROR_INVALIDDATA; | |
| wav->data_end = avio_tell(s->pb) + left; | |
| } | |
| size = wav->max_size; | |
| if (st->codecpar->block_align > 1) { | |
| if (size < st->codecpar->block_align) | |
| size = st->codecpar->block_align; | |
| size = (size / st->codecpar->block_align) * st->codecpar->block_align; | |
| } | |
| size = FFMIN(size, left); | |
| ret = av_get_packet(s->pb, pkt, size); | |
| if (ret < 0) | |
| return ret; | |
| pkt->stream_index = 0; | |
| return ret; | |
| } | |
| static int wav_read_seek(AVFormatContext *s, | |
| int stream_index, int64_t timestamp, int flags) | |
| { | |
| WAVDemuxContext *wav = s->priv_data; | |
| AVStream *ast = s->streams[0], *vst = wav->vst; | |
| wav->smv_eof = 0; | |
| wav->audio_eof = 0; | |
| if (stream_index != 0 && (!vst || stream_index != vst->index)) | |
| return AVERROR(EINVAL); | |
| if (wav->smv_data_ofs > 0) { | |
| int64_t smv_timestamp = timestamp; | |
| if (stream_index == 0) | |
| smv_timestamp = av_rescale_q(timestamp, ast->time_base, vst->time_base); | |
| else | |
| timestamp = av_rescale_q(smv_timestamp, vst->time_base, ast->time_base); | |
| if (wav->smv_frames_per_jpeg > 0) { | |
| wav->smv_block = smv_timestamp / wav->smv_frames_per_jpeg; | |
| } | |
| } | |
| switch (ast->codecpar->codec_id) { | |
| case AV_CODEC_ID_MP2: | |
| case AV_CODEC_ID_MP3: | |
| case AV_CODEC_ID_AC3: | |
| case AV_CODEC_ID_DTS: | |
| case AV_CODEC_ID_XMA2: | |
| /* use generic seeking with dynamically generated indexes */ | |
| return -1; | |
| default: | |
| break; | |
| } | |
| return ff_pcm_read_seek(s, 0, timestamp, flags); | |
| } | |
| static const AVClass wav_demuxer_class = { | |
| .class_name = "WAV demuxer", | |
| .item_name = av_default_item_name, | |
| .option = demux_options, | |
| .version = LIBAVUTIL_VERSION_INT, | |
| }; | |
| const FFInputFormat ff_wav_demuxer = { | |
| .p.name = "wav", | |
| .p.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"), | |
| .p.flags = AVFMT_GENERIC_INDEX, | |
| .p.codec_tag = ff_wav_codec_tags_list, | |
| .p.priv_class = &wav_demuxer_class, | |
| .priv_data_size = sizeof(WAVDemuxContext), | |
| .read_probe = wav_probe, | |
| .read_header = wav_read_header, | |
| .read_packet = wav_read_packet, | |
| .read_seek = wav_read_seek, | |
| }; | |
| #endif /* CONFIG_WAV_DEMUXER */ | |
| #if CONFIG_W64_DEMUXER | |
| static int w64_probe(const AVProbeData *p) | |
| { | |
| if (p->buf_size <= 40) | |
| return 0; | |
| if (!memcmp(p->buf, ff_w64_guid_riff, 16) && | |
| !memcmp(p->buf + 24, ff_w64_guid_wave, 16)) | |
| return AVPROBE_SCORE_MAX; | |
| else | |
| return 0; | |
| } | |
| static int w64_read_header(AVFormatContext *s) | |
| { | |
| int64_t size, data_ofs = 0; | |
| AVIOContext *pb = s->pb; | |
| WAVDemuxContext *wav = s->priv_data; | |
| AVStream *st; | |
| uint8_t guid[16]; | |
| int ret; | |
| if (avio_read(pb, guid, 16) != 16 || memcmp(guid, ff_w64_guid_riff, 16)) | |
| return AVERROR_INVALIDDATA; | |
| /* riff + wave + fmt + sizes */ | |
| if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8) | |
| return AVERROR_INVALIDDATA; | |
| avio_read(pb, guid, 16); | |
| if (memcmp(guid, ff_w64_guid_wave, 16)) { | |
| av_log(s, AV_LOG_ERROR, "could not find wave guid\n"); | |
| return AVERROR_INVALIDDATA; | |
| } | |
| wav->w64 = 1; | |
| st = avformat_new_stream(s, NULL); | |
| if (!st) | |
| return AVERROR(ENOMEM); | |
| while (!avio_feof(pb)) { | |
| if (avio_read(pb, guid, 16) != 16) | |
| break; | |
| size = avio_rl64(pb); | |
| if (size <= 24 || INT64_MAX - size < avio_tell(pb)) { | |
| if (data_ofs) | |
| break; | |
| return AVERROR_INVALIDDATA; | |
| } | |
| if (!memcmp(guid, ff_w64_guid_fmt, 16)) { | |
| /* subtract chunk header size - normal wav file doesn't count it */ | |
| ret = ff_get_wav_header(s, pb, st->codecpar, size - 24, 0); | |
| if (ret < 0) | |
| return ret; | |
| avio_skip(pb, FFALIGN(size, INT64_C(8)) - size); | |
| if (st->codecpar->block_align && | |
| st->codecpar->ch_layout.nb_channels < FF_SANE_NB_CHANNELS && | |
| st->codecpar->bits_per_coded_sample < 128) { | |
| int64_t block_align = st->codecpar->block_align; | |
| block_align = FFMAX(block_align, | |
| ((st->codecpar->bits_per_coded_sample + 7LL) / 8) * | |
| st->codecpar->ch_layout.nb_channels); | |
| if (block_align > st->codecpar->block_align) { | |
| av_log(s, AV_LOG_WARNING, "invalid block_align: %d, broken file.\n", | |
| st->codecpar->block_align); | |
| st->codecpar->block_align = block_align; | |
| } | |
| } | |
| avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| } else if (!memcmp(guid, ff_w64_guid_fact, 16)) { | |
| int64_t samples; | |
| samples = avio_rl64(pb); | |
| if (samples > 0) | |
| st->duration = samples; | |
| avio_skip(pb, FFALIGN(size, INT64_C(8)) - 32); | |
| } else if (!memcmp(guid, ff_w64_guid_data, 16)) { | |
| wav->data_end = avio_tell(pb) + size - 24; | |
| data_ofs = avio_tell(pb); | |
| if (!(pb->seekable & AVIO_SEEKABLE_NORMAL)) | |
| break; | |
| avio_skip(pb, size - 24); | |
| } else if (!memcmp(guid, ff_w64_guid_summarylist, 16)) { | |
| int64_t start, end, cur; | |
| uint32_t count, chunk_size, i; | |
| int64_t filesize = avio_size(s->pb); | |
| start = avio_tell(pb); | |
| end = start + FFALIGN(size, INT64_C(8)) - 24; | |
| count = avio_rl32(pb); | |
| for (i = 0; i < count; i++) { | |
| char chunk_key[5], *value; | |
| if (avio_feof(pb) || (cur = avio_tell(pb)) < 0 || cur > end - 8 /* = tag + size */) | |
| break; | |
| chunk_key[4] = 0; | |
| avio_read(pb, chunk_key, 4); | |
| chunk_size = avio_rl32(pb); | |
| if (chunk_size == UINT32_MAX || (filesize >= 0 && chunk_size > filesize)) | |
| return AVERROR_INVALIDDATA; | |
| value = av_malloc(chunk_size + 1); | |
| if (!value) | |
| return AVERROR(ENOMEM); | |
| ret = avio_get_str16le(pb, chunk_size, value, chunk_size); | |
| if (ret < 0) { | |
| av_free(value); | |
| return ret; | |
| } | |
| avio_skip(pb, chunk_size - ret); | |
| av_dict_set(&s->metadata, chunk_key, value, AV_DICT_DONT_STRDUP_VAL); | |
| } | |
| avio_skip(pb, end - avio_tell(pb)); | |
| } else { | |
| av_log(s, AV_LOG_DEBUG, "unknown guid: "FF_PRI_GUID"\n", FF_ARG_GUID(guid)); | |
| avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24); | |
| } | |
| } | |
| if (!data_ofs) | |
| return AVERROR_EOF; | |
| ff_metadata_conv_ctx(s, NULL, wav_metadata_conv); | |
| ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv); | |
| handle_stream_probing(st); | |
| ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; | |
| avio_seek(pb, data_ofs, SEEK_SET); | |
| set_spdif(s, wav); | |
| set_max_size(st, wav); | |
| return 0; | |
| } | |
| static const AVClass w64_demuxer_class = { | |
| .class_name = "W64 demuxer", | |
| .item_name = av_default_item_name, | |
| .option = &demux_options[W64_DEMUXER_OPTIONS_OFFSET], | |
| .version = LIBAVUTIL_VERSION_INT, | |
| }; | |
| const FFInputFormat ff_w64_demuxer = { | |
| .p.name = "w64", | |
| .p.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"), | |
| .p.flags = AVFMT_GENERIC_INDEX, | |
| .p.codec_tag = ff_wav_codec_tags_list, | |
| .p.priv_class = &w64_demuxer_class, | |
| .priv_data_size = sizeof(WAVDemuxContext), | |
| .read_probe = w64_probe, | |
| .read_header = w64_read_header, | |
| .read_packet = wav_read_packet, | |
| .read_seek = wav_read_seek, | |
| }; | |
| #endif /* CONFIG_W64_DEMUXER */ |