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https://git.ffmpeg.org/ffmpeg.git
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avformat/iff: extend IFF demuxer to decode DSDIFF 64-bit chunks
Signed-off-by: Peter Ross <pross@xvid.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross
Michael Niedermayer
parent
373d7dd371
commit
f57ac37228
@ -36,6 +36,7 @@
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#include "libavutil/dict.h"
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#include "libavcodec/bytestream.h"
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#include "avformat.h"
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#include "id3v2.h"
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#include "internal.h"
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#define ID_8SVX MKTAG('8','S','V','X')
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@ -57,8 +58,10 @@
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#define ID_DEEP MKTAG('D','E','E','P')
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#define ID_RGB8 MKTAG('R','G','B','8')
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#define ID_RGBN MKTAG('R','G','B','N')
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#define ID_DSD MKTAG('D','S','D',' ')
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#define ID_FORM MKTAG('F','O','R','M')
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#define ID_FRM8 MKTAG('F','R','M','8')
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#define ID_ANNO MKTAG('A','N','N','O')
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#define ID_AUTH MKTAG('A','U','T','H')
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#define ID_CHRS MKTAG('C','H','R','S')
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@ -95,6 +98,7 @@ typedef enum {
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} svx8_compression_type;
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typedef struct {
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int is_64bit; ///< chunk size is 64-bit
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int64_t body_pos;
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int64_t body_end;
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uint32_t body_size;
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@ -133,7 +137,7 @@ static int iff_probe(AVProbeData *p)
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{
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const uint8_t *d = p->buf;
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if ( AV_RL32(d) == ID_FORM &&
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if ( (AV_RL32(d) == ID_FORM &&
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(AV_RL32(d+8) == ID_8SVX ||
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AV_RL32(d+8) == ID_16SV ||
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AV_RL32(d+8) == ID_MAUD ||
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@ -142,11 +146,188 @@ static int iff_probe(AVProbeData *p)
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AV_RL32(d+8) == ID_DEEP ||
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AV_RL32(d+8) == ID_ILBM ||
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AV_RL32(d+8) == ID_RGB8 ||
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AV_RL32(d+8) == ID_RGBN) )
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AV_RL32(d+8) == ID_RGB8 ||
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AV_RL32(d+8) == ID_RGBN)) ||
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(AV_RL32(d) == ID_FRM8 && AV_RL32(d+12) == ID_DSD))
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return AVPROBE_SCORE_MAX;
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return 0;
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}
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static const AVCodecTag dsd_codec_tags[] = {
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{ AV_CODEC_ID_DSD_MSBF, ID_DSD },
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{ AV_CODEC_ID_NONE, 0 },
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};
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#define DSD_SLFT MKTAG('S','L','F','T')
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#define DSD_SRGT MKTAG('S','R','G','T')
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#define DSD_MLFT MKTAG('M','L','F','T')
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#define DSD_MRGT MKTAG('M','R','G','T')
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#define DSD_C MKTAG('C',' ',' ',' ')
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#define DSD_LS MKTAG('L','S',' ',' ')
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#define DSD_RS MKTAG('R','S',' ',' ')
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#define DSD_LFE MKTAG('L','F','E',' ')
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static const uint32_t dsd_stereo[] = { DSD_SLFT, DSD_SRGT };
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static const uint32_t dsd_5point0[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LS, DSD_RS };
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static const uint32_t dsd_5point1[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LFE, DSD_LS, DSD_RS };
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typedef struct {
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uint64_t layout;
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const uint32_t * dsd_layout;
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} DSDLayoutDesc;
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static const DSDLayoutDesc dsd_channel_layout[] = {
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{ AV_CH_LAYOUT_STEREO, dsd_stereo },
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{ AV_CH_LAYOUT_5POINT0, dsd_5point0 },
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{ AV_CH_LAYOUT_5POINT1, dsd_5point1 },
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};
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static const uint64_t dsd_loudspeaker_config[] = {
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AV_CH_LAYOUT_STEREO,
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0, 0,
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AV_CH_LAYOUT_5POINT0, AV_CH_LAYOUT_5POINT1,
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};
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static const char * dsd_source_comment[] = {
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"dsd_source_comment",
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"analogue_source_comment",
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"pcm_source_comment",
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};
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static const char * dsd_history_comment[] = {
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"general_remark",
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"operator_name",
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"creating_machine",
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"timezone",
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"file_revision"
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};
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static int parse_dsd_diin(AVFormatContext *s, AVStream *st, uint64_t eof)
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{
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AVIOContext *pb = s->pb;
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while (avio_tell(pb) + 12 <= eof) {
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uint32_t tag = avio_rl32(pb);
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uint64_t size = avio_rb64(pb);
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uint64_t orig_pos = avio_tell(pb);
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const char * metadata_tag = NULL;
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switch(tag) {
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case MKTAG('D','I','A','R'): metadata_tag = "artist"; break;
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case MKTAG('D','I','T','I'): metadata_tag = "title"; break;
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}
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if (metadata_tag && size > 4) {
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unsigned int tag_size = avio_rb32(pb);
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int ret = get_metadata(s, metadata_tag, FFMIN(tag_size, size - 4));
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if (ret < 0) {
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av_log(s, AV_LOG_ERROR, "cannot allocate metadata tag %s!\n", metadata_tag);
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return ret;
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}
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}
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avio_skip(pb, size - (avio_tell(pb) - orig_pos) + (size & 1));
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}
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return 0;
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}
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static int parse_dsd_prop(AVFormatContext *s, AVStream *st, uint64_t eof)
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{
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AVIOContext *pb = s->pb;
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char abss[24];
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int hour, min, sec, i, ret, config;
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int dsd_layout[6];
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ID3v2ExtraMeta *id3v2_extra_meta;
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while (avio_tell(pb) + 12 <= eof) {
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uint32_t tag = avio_rl32(pb);
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uint64_t size = avio_rb64(pb);
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uint64_t orig_pos = avio_tell(pb);
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switch(tag) {
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case MKTAG('A','B','S','S'):
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if (size < 8)
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return AVERROR_INVALIDDATA;
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hour = avio_rb16(pb);
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min = avio_r8(pb);
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sec = avio_r8(pb);
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snprintf(abss, sizeof(abss), "%02dh:%02dm:%02ds:%d", hour, min, sec, avio_rb32(pb));
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av_dict_set(&st->metadata, "absolute_start_time", abss, 0);
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break;
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case MKTAG('C','H','N','L'):
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if (size < 2)
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return AVERROR_INVALIDDATA;
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st->codec->channels = avio_rb16(pb);
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if (size < 2 + st->codec->channels * 4)
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return AVERROR_INVALIDDATA;
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st->codec->channel_layout = 0;
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if (st->codec->channels > FF_ARRAY_ELEMS(dsd_layout)) {
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avpriv_request_sample(s, "channel layout");
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break;
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}
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for (i = 0; i < st->codec->channels; i++)
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dsd_layout[i] = avio_rl32(pb);
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for (i = 0; i < FF_ARRAY_ELEMS(dsd_channel_layout); i++) {
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const DSDLayoutDesc * d = &dsd_channel_layout[i];
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if (av_get_channel_layout_nb_channels(d->layout) == st->codec->channels &&
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!memcmp(d->dsd_layout, dsd_layout, st->codec->channels * sizeof(uint32_t))) {
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st->codec->channel_layout = d->layout;
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break;
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}
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}
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break;
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case MKTAG('C','M','P','R'):
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if (size < 4)
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return AVERROR_INVALIDDATA;
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st->codec->codec_id = ff_codec_get_id(dsd_codec_tags, avio_rl32(pb));
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break;
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case MKTAG('F','S',' ',' '):
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if (size < 4)
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return AVERROR_INVALIDDATA;
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st->codec->sample_rate = avio_rb32(pb) / 8;
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break;
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case MKTAG('I','D','3',' '):
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id3v2_extra_meta = NULL;
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ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, size);
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if (id3v2_extra_meta) {
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if ((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0) {
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ff_id3v2_free_extra_meta(&id3v2_extra_meta);
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return ret;
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}
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ff_id3v2_free_extra_meta(&id3v2_extra_meta);
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}
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if (size < avio_tell(pb) - orig_pos) {
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av_log(s, AV_LOG_ERROR, "id3 exceeds chunk size\n");
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return AVERROR_INVALIDDATA;
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}
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break;
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case MKTAG('L','S','C','O'):
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if (size < 2)
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return AVERROR_INVALIDDATA;
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config = avio_rb16(pb);
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if (config != 0xFFFF) {
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if (config < FF_ARRAY_ELEMS(dsd_loudspeaker_config))
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st->codec->channel_layout = dsd_loudspeaker_config[config];
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if (!st->codec->channel_layout)
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avpriv_request_sample(s, "loudspeaker configuration %d", config);
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}
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break;
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}
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avio_skip(pb, size - (avio_tell(pb) - orig_pos) + (size & 1));
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}
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return 0;
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}
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static const uint8_t deep_rgb24[] = {0, 0, 0, 3, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8};
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static const uint8_t deep_rgba[] = {0, 0, 0, 4, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8};
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static const uint8_t deep_bgra[] = {0, 0, 0, 4, 0, 3, 0, 8, 0, 2, 0, 8, 0, 1, 0, 8};
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@ -159,7 +340,8 @@ static int iff_read_header(AVFormatContext *s)
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AVIOContext *pb = s->pb;
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AVStream *st;
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uint8_t *buf;
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uint32_t chunk_id, data_size;
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uint32_t chunk_id;
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uint64_t data_size;
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uint32_t screenmode = 0, num, den;
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unsigned transparency = 0;
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unsigned masking = 0; // no mask
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@ -172,7 +354,8 @@ static int iff_read_header(AVFormatContext *s)
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st->codec->channels = 1;
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st->codec->channel_layout = AV_CH_LAYOUT_MONO;
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avio_skip(pb, 8);
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iff->is_64bit = avio_rl32(pb) == ID_FRM8;
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avio_skip(pb, iff->is_64bit ? 8 : 4);
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// codec_tag used by ByteRun1 decoder to distinguish progressive (PBM) and interlaced (ILBM) content
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st->codec->codec_tag = avio_rl32(pb);
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iff->bitmap_compression = -1;
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@ -184,8 +367,9 @@ static int iff_read_header(AVFormatContext *s)
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uint64_t orig_pos;
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int res;
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const char *metadata_tag = NULL;
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int version, nb_comments, i;
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chunk_id = avio_rl32(pb);
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data_size = avio_rb32(pb);
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data_size = iff->is_64bit ? avio_rb64(pb) : avio_rb32(pb);
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orig_pos = avio_tell(pb);
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switch(chunk_id) {
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@ -227,6 +411,7 @@ static int iff_read_header(AVFormatContext *s)
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case ID_ABIT:
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case ID_BODY:
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case ID_DBOD:
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case ID_DSD:
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case ID_MDAT:
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iff->body_pos = avio_tell(pb);
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iff->body_end = iff->body_pos + data_size;
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@ -253,7 +438,7 @@ static int iff_read_header(AVFormatContext *s)
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case ID_CMAP:
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if (data_size < 3 || data_size > 768 || data_size % 3) {
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av_log(s, AV_LOG_ERROR, "Invalid CMAP chunk size %"PRIu32"\n",
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av_log(s, AV_LOG_ERROR, "Invalid CMAP chunk size %"PRIu64"\n",
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data_size);
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return AVERROR_INVALIDDATA;
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}
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@ -340,6 +525,84 @@ static int iff_read_header(AVFormatContext *s)
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case ID_AUTH: metadata_tag = "artist"; break;
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case ID_COPYRIGHT: metadata_tag = "copyright"; break;
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case ID_NAME: metadata_tag = "title"; break;
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/* DSD tags */
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case MKTAG('F','V','E','R'):
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if (data_size < 4)
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return AVERROR_INVALIDDATA;
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version = avio_rb32(pb);
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av_log(s, AV_LOG_DEBUG, "DSIFF v%d.%d.%d.%d\n",version >> 24, (version >> 16) & 0xFF, (version >> 8) & 0xFF, version & 0xFF);
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st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
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break;
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case MKTAG('D','I','I','N'):
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res = parse_dsd_diin(s, st, orig_pos + data_size);
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if (res < 0)
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return res;
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break;
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case MKTAG('P','R','O','P'):
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if (data_size < 4)
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return AVERROR_INVALIDDATA;
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if (avio_rl32(pb) != MKTAG('S','N','D',' ')) {
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avpriv_request_sample(s, "unknown property type");
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break;
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}
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res = parse_dsd_prop(s, st, orig_pos + data_size);
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if (res < 0)
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return res;
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break;
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case MKTAG('C','O','M','T'):
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if (data_size < 2)
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return AVERROR_INVALIDDATA;
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nb_comments = avio_rb16(pb);
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for (i = 0; i < nb_comments; i++) {
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int year, mon, day, hour, min, type, ref;
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char tmp[24];
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const char *tag;
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int metadata_size;
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year = avio_rb16(pb);
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mon = avio_r8(pb);
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day = avio_r8(pb);
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hour = avio_r8(pb);
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min = avio_r8(pb);
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snprintf(tmp, sizeof(tmp), "%04d-%02d-%02d %02d:%02d", year, mon, day, hour, min);
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av_dict_set(&st->metadata, "comment_time", tmp, 0);
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type = avio_rb16(pb);
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ref = avio_rb16(pb);
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switch (type) {
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case 1:
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if (!i)
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tag = "channel_comment";
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else {
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snprintf(tmp, sizeof(tmp), "channel%d_comment", ref);
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tag = tmp;
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}
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break;
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case 2:
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tag = ref < FF_ARRAY_ELEMS(dsd_source_comment) ? dsd_history_comment[ref] : "source_comment";
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break;
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case 3:
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tag = ref < FF_ARRAY_ELEMS(dsd_history_comment) ? dsd_history_comment[ref] : "file_history";
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break;
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default:
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tag = "comment";
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}
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metadata_size = avio_rb32(pb);
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if ((res = get_metadata(s, tag, metadata_size)) < 0) {
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av_log(s, AV_LOG_ERROR, "cannot allocate metadata tag %s!\n", tag);
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return res;
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}
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if (metadata_size & 1)
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avio_skip(pb, 1);
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}
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break;
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}
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if (metadata_tag) {
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@ -372,7 +635,7 @@ static int iff_read_header(AVFormatContext *s)
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avpriv_request_sample(s, "compression %d and bit depth %d", iff->maud_compression, iff->maud_bits);
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return AVERROR_PATCHWELCOME;
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}
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} else {
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} else if (st->codec->codec_tag != ID_DSD) {
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switch (iff->svx8_compression) {
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case COMP_NONE:
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st->codec->codec_id = AV_CODEC_ID_PCM_S8_PLANAR;
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@ -443,7 +706,7 @@ static int iff_read_packet(AVFormatContext *s,
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return AVERROR_EOF;
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if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
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if (st->codec->codec_tag == ID_MAUD) {
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if (st->codec->codec_tag == ID_DSD || st->codec->codec_tag == ID_MAUD) {
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ret = av_get_packet(pb, pkt, FFMIN(iff->body_end - pos, 1024 * st->codec->block_align));
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} else {
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ret = av_get_packet(pb, pkt, iff->body_size);
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