X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Foggenc.c;h=c1f22d15cc4daeaccbe97195972aef324ef0683d;hb=31f16dc1a16671a32c7aad45a0e0c38d2b0c74e8;hp=335fae7a262d8757ee635e4ec1fd6cf5d05ed8cc;hpb=521d434fd5449c5c30c76f51702e237f65849133;p=ffmpeg diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c index 335fae7a262..c1f22d15cc4 100644 --- a/libavformat/oggenc.c +++ b/libavformat/oggenc.c @@ -2,29 +2,32 @@ * Ogg muxer * Copyright (c) 2007 Baptiste Coudurier * - * 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/crc.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" #include "libavutil/random_seed.h" #include "libavcodec/xiph.h" #include "libavcodec/bytestream.h" #include "libavcodec/flac.h" #include "avformat.h" +#include "avio_internal.h" #include "internal.h" #include "vorbiscomment.h" @@ -52,6 +55,7 @@ typedef struct { unsigned page_count; ///< number of page buffered OGGPage page; ///< current page unsigned serial_num; ///< serial number + int64_t last_granule; ///< last packet granule } OGGStreamContext; typedef struct OGGPageList { @@ -60,63 +64,82 @@ typedef struct OGGPageList { } OGGPageList; typedef struct { + const AVClass *class; OGGPageList *page_list; + int pref_size; ///< preferred page size (0 => fill all segments) } OGGContext; -static void ogg_update_checksum(AVFormatContext *s, ByteIOContext *pb, int64_t crc_offset) +#define OFFSET(x) offsetof(OGGContext, x) +#define PARAM AV_OPT_FLAG_ENCODING_PARAM + +static const AVOption options[] = { + { "pagesize", "preferred page size in bytes", + OFFSET(pref_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, MAX_PAGE_SIZE, PARAM }, + { NULL }, +}; + +static const AVClass ogg_muxer_class = { + .class_name = "Ogg muxer", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + + +static void ogg_update_checksum(AVFormatContext *s, AVIOContext *pb, int64_t crc_offset) { - int64_t pos = url_ftell(pb); - uint32_t checksum = get_checksum(pb); - url_fseek(pb, crc_offset, SEEK_SET); - put_be32(pb, checksum); - url_fseek(pb, pos, SEEK_SET); + int64_t pos = avio_tell(pb); + uint32_t checksum = ffio_get_checksum(pb); + avio_seek(pb, crc_offset, SEEK_SET); + avio_wb32(pb, checksum); + avio_seek(pb, pos, SEEK_SET); } static int ogg_write_page(AVFormatContext *s, OGGPage *page, int extra_flags) { OGGStreamContext *oggstream = s->streams[page->stream_index]->priv_data; - ByteIOContext *pb; + AVIOContext *pb; int64_t crc_offset; int ret, size; uint8_t *buf; - ret = url_open_dyn_buf(&pb); + ret = avio_open_dyn_buf(&pb); if (ret < 0) return ret; - init_checksum(pb, ff_crc04C11DB7_update, 0); - put_tag(pb, "OggS"); - put_byte(pb, 0); - put_byte(pb, page->flags | extra_flags); - put_le64(pb, page->granule); - put_le32(pb, oggstream->serial_num); - put_le32(pb, oggstream->page_counter++); - crc_offset = url_ftell(pb); - put_le32(pb, 0); // crc - put_byte(pb, page->segments_count); - put_buffer(pb, page->segments, page->segments_count); - put_buffer(pb, page->data, page->size); + ffio_init_checksum(pb, ff_crc04C11DB7_update, 0); + ffio_wfourcc(pb, "OggS"); + avio_w8(pb, 0); + avio_w8(pb, page->flags | extra_flags); + avio_wl64(pb, page->granule); + avio_wl32(pb, oggstream->serial_num); + avio_wl32(pb, oggstream->page_counter++); + crc_offset = avio_tell(pb); + avio_wl32(pb, 0); // crc + avio_w8(pb, page->segments_count); + avio_write(pb, page->segments, page->segments_count); + avio_write(pb, page->data, page->size); ogg_update_checksum(s, pb, crc_offset); - put_flush_packet(pb); + avio_flush(pb); - size = url_close_dyn_buf(pb, &buf); + size = avio_close_dyn_buf(pb, &buf); if (size < 0) return size; - put_buffer(s->pb, buf, size); - put_flush_packet(s->pb); + avio_write(s->pb, buf, size); + avio_flush(s->pb); av_free(buf); oggstream->page_count--; return 0; } -static int64_t ogg_granule_to_timestamp(OGGStreamContext *oggstream, OGGPage *page) +static int64_t ogg_granule_to_timestamp(OGGStreamContext *oggstream, int64_t granule) { if (oggstream->kfgshift) - return (page->granule>>oggstream->kfgshift) + - (page->granule & ((1<kfgshift)-1)); + return (granule>>oggstream->kfgshift) + + (granule & ((1<kfgshift)-1)); else - return page->granule; + return granule; } static int ogg_compare_granule(AVFormatContext *s, OGGPage *next, OGGPage *page) @@ -128,9 +151,9 @@ static int ogg_compare_granule(AVFormatContext *s, OGGPage *next, OGGPage *page) if (next->granule == -1 || page->granule == -1) return 0; - next_granule = av_rescale_q(ogg_granule_to_timestamp(st2->priv_data, next), + next_granule = av_rescale_q(ogg_granule_to_timestamp(st2->priv_data, next->granule), st2->time_base, AV_TIME_BASE_Q); - cur_granule = av_rescale_q(ogg_granule_to_timestamp(st->priv_data, page), + cur_granule = av_rescale_q(ogg_granule_to_timestamp(st->priv_data, page->granule), st ->time_base, AV_TIME_BASE_Q); return next_granule > cur_granule; } @@ -169,12 +192,23 @@ static int ogg_buffer_page(AVFormatContext *s, OGGStreamContext *oggstream) } static int ogg_buffer_data(AVFormatContext *s, AVStream *st, - uint8_t *data, unsigned size, int64_t granule) + uint8_t *data, unsigned size, int64_t granule, + int header) { OGGStreamContext *oggstream = st->priv_data; + OGGContext *ogg = s->priv_data; int total_segments = size / 255 + 1; uint8_t *p = data; - int i, segments, len; + int i, segments, len, flush = 0; + + // Handles VFR by flushing page because this frame needs to have a timestamp + if (st->codec->codec_id == AV_CODEC_ID_THEORA && !header && + ogg_granule_to_timestamp(oggstream, granule) > + ogg_granule_to_timestamp(oggstream, oggstream->last_granule) + 1) { + if (oggstream->page.granule != -1) + ogg_buffer_page(s, oggstream); + flush = 1; + } for (i = 0; i < total_segments; ) { OGGPage *page = &oggstream->page; @@ -198,22 +232,29 @@ static int ogg_buffer_data(AVFormatContext *s, AVStream *st, if (i == total_segments) page->granule = granule; - if (page->segments_count == 255) { - ogg_buffer_page(s, oggstream); + if (!header && (page->segments_count == 255 || + (ogg->pref_size > 0 && page->size >= ogg->pref_size))) { + ogg_buffer_page(s, oggstream); } } + + if (flush && oggstream->page.granule != -1) + ogg_buffer_page(s, oggstream); + return 0; } static uint8_t *ogg_write_vorbiscomment(int offset, int bitexact, - int *header_len, AVMetadata *m, int framing_bit) + int *header_len, AVDictionary **m, int framing_bit) { - const char *vendor = bitexact ? "ffmpeg" : LIBAVFORMAT_IDENT; + const char *vendor = bitexact ? "Libav" : LIBAVFORMAT_IDENT; int size; uint8_t *p, *p0; unsigned int count; - size = offset + ff_vorbiscomment_length(m, vendor, &count) + framing_bit; + ff_metadata_conv(m, ff_vorbiscomment_metadata_conv, NULL); + + size = offset + ff_vorbiscomment_length(*m, vendor, &count) + framing_bit; p = av_mallocz(size); if (!p) return NULL; @@ -230,13 +271,13 @@ static uint8_t *ogg_write_vorbiscomment(int offset, int bitexact, static int ogg_build_flac_headers(AVCodecContext *avctx, OGGStreamContext *oggstream, int bitexact, - AVMetadata *m) + AVDictionary **m) { enum FLACExtradataFormat format; uint8_t *streaminfo; uint8_t *p; - if (!ff_flac_is_extradata_valid(avctx, &format, &streaminfo)) + if (!avpriv_flac_is_extradata_valid(avctx, &format, &streaminfo)) return -1; // first packet: STREAMINFO @@ -270,7 +311,7 @@ static int ogg_build_flac_headers(AVCodecContext *avctx, static int ogg_build_speex_headers(AVCodecContext *avctx, OGGStreamContext *oggstream, int bitexact, - AVMetadata *m) + AVDictionary **m) { uint8_t *p; @@ -295,6 +336,35 @@ static int ogg_build_speex_headers(AVCodecContext *avctx, return 0; } +#define OPUS_HEADER_SIZE 19 + +static int ogg_build_opus_headers(AVCodecContext *avctx, + OGGStreamContext *oggstream, int bitexact, + AVDictionary **m) +{ + uint8_t *p; + + if (avctx->extradata_size < OPUS_HEADER_SIZE) + return -1; + + /* first packet: Opus header */ + p = av_mallocz(avctx->extradata_size); + if (!p) + return AVERROR(ENOMEM); + oggstream->header[0] = p; + oggstream->header_len[0] = avctx->extradata_size; + bytestream_put_buffer(&p, avctx->extradata, avctx->extradata_size); + + /* second packet: VorbisComment */ + p = ogg_write_vorbiscomment(8, bitexact, &oggstream->header_len[1], m, 0); + if (!p) + return AVERROR(ENOMEM); + oggstream->header[1] = p; + bytestream_put_buffer(&p, "OpusTags", 8); + + return 0; +} + static int ogg_write_header(AVFormatContext *s) { OGGStreamContext *oggstream; @@ -305,13 +375,18 @@ static int ogg_write_header(AVFormatContext *s) unsigned serial_num = i; if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) - av_set_pts_info(st, 64, 1, st->codec->sample_rate); + if (st->codec->codec_id == AV_CODEC_ID_OPUS) + /* Opus requires a fixed 48kHz clock */ + avpriv_set_pts_info(st, 64, 1, 48000); + else + avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) - av_set_pts_info(st, 64, st->codec->time_base.num, st->codec->time_base.den); - if (st->codec->codec_id != CODEC_ID_VORBIS && - st->codec->codec_id != CODEC_ID_THEORA && - st->codec->codec_id != CODEC_ID_SPEEX && - st->codec->codec_id != CODEC_ID_FLAC) { + avpriv_set_pts_info(st, 64, st->codec->time_base.num, st->codec->time_base.den); + if (st->codec->codec_id != AV_CODEC_ID_VORBIS && + st->codec->codec_id != AV_CODEC_ID_THEORA && + st->codec->codec_id != AV_CODEC_ID_SPEEX && + st->codec->codec_id != AV_CODEC_ID_FLAC && + st->codec->codec_id != AV_CODEC_ID_OPUS) { av_log(s, AV_LOG_ERROR, "Unsupported codec id in stream %d\n", i); return -1; } @@ -335,32 +410,41 @@ static int ogg_write_header(AVFormatContext *s) oggstream->serial_num = serial_num; st->priv_data = oggstream; - if (st->codec->codec_id == CODEC_ID_FLAC) { + if (st->codec->codec_id == AV_CODEC_ID_FLAC) { int err = ogg_build_flac_headers(st->codec, oggstream, st->codec->flags & CODEC_FLAG_BITEXACT, - s->metadata); + &s->metadata); if (err) { av_log(s, AV_LOG_ERROR, "Error writing FLAC headers\n"); av_freep(&st->priv_data); return err; } - } else if (st->codec->codec_id == CODEC_ID_SPEEX) { + } else if (st->codec->codec_id == AV_CODEC_ID_SPEEX) { int err = ogg_build_speex_headers(st->codec, oggstream, st->codec->flags & CODEC_FLAG_BITEXACT, - s->metadata); + &s->metadata); if (err) { av_log(s, AV_LOG_ERROR, "Error writing Speex headers\n"); av_freep(&st->priv_data); return err; } + } else if (st->codec->codec_id == AV_CODEC_ID_OPUS) { + int err = ogg_build_opus_headers(st->codec, oggstream, + st->codec->flags & CODEC_FLAG_BITEXACT, + &s->metadata); + if (err) { + av_log(s, AV_LOG_ERROR, "Error writing Opus headers\n"); + av_freep(&st->priv_data); + return err; + } } else { uint8_t *p; - char *cstr = st->codec->codec_id == CODEC_ID_VORBIS ? "vorbis" : "theora"; - int header_type = st->codec->codec_id == CODEC_ID_VORBIS ? 3 : 0x81; - int framing_bit = st->codec->codec_id == CODEC_ID_VORBIS ? 1 : 0; + const char *cstr = st->codec->codec_id == AV_CODEC_ID_VORBIS ? "vorbis" : "theora"; + int header_type = st->codec->codec_id == AV_CODEC_ID_VORBIS ? 3 : 0x81; + int framing_bit = st->codec->codec_id == AV_CODEC_ID_VORBIS ? 1 : 0; - if (ff_split_xiph_headers(st->codec->extradata, st->codec->extradata_size, - st->codec->codec_id == CODEC_ID_VORBIS ? 30 : 42, + if (avpriv_split_xiph_headers(st->codec->extradata, st->codec->extradata_size, + st->codec->codec_id == AV_CODEC_ID_VORBIS ? 30 : 42, oggstream->header, oggstream->header_len) < 0) { av_log(s, AV_LOG_ERROR, "Extradata corrupted\n"); av_freep(&st->priv_data); @@ -368,16 +452,16 @@ static int ogg_write_header(AVFormatContext *s) } p = ogg_write_vorbiscomment(7, st->codec->flags & CODEC_FLAG_BITEXACT, - &oggstream->header_len[1], s->metadata, + &oggstream->header_len[1], &s->metadata, framing_bit); + oggstream->header[1] = p; if (!p) return AVERROR(ENOMEM); - oggstream->header[1] = p; bytestream_put_byte(&p, header_type); bytestream_put_buffer(&p, cstr, 6); - if (st->codec->codec_id == CODEC_ID_THEORA) { + if (st->codec->codec_id == AV_CODEC_ID_THEORA) { /** KFGSHIFT is the width of the less significant section of the granule position The less significant section is the frame count since the last keyframe */ oggstream->kfgshift = ((oggstream->header[0][40]&3)<<3)|(oggstream->header[0][41]>>5); @@ -391,7 +475,7 @@ static int ogg_write_header(AVFormatContext *s) for (j = 0; j < s->nb_streams; j++) { OGGStreamContext *oggstream = s->streams[j]->priv_data; ogg_buffer_data(s, s->streams[j], oggstream->header[0], - oggstream->header_len[0], 0); + oggstream->header_len[0], 0, 1); oggstream->page.flags |= 2; // bos ogg_buffer_page(s, oggstream); } @@ -401,7 +485,7 @@ static int ogg_write_header(AVFormatContext *s) for (i = 1; i < 3; i++) { if (oggstream && oggstream->header_len[i]) ogg_buffer_data(s, st, oggstream->header[i], - oggstream->header_len[i], 0); + oggstream->header_len[i], 0, 1); } ogg_buffer_page(s, oggstream); } @@ -437,7 +521,7 @@ static int ogg_write_packet(AVFormatContext *s, AVPacket *pkt) int ret; int64_t granule; - if (st->codec->codec_id == CODEC_ID_THEORA) { + if (st->codec->codec_id == AV_CODEC_ID_THEORA) { int64_t pts = oggstream->vrev < 1 ? pkt->pts : pkt->pts + pkt->duration; int pframe_count; if (pkt->flags & AV_PKT_FLAG_KEY) @@ -449,15 +533,19 @@ static int ogg_write_packet(AVFormatContext *s, AVPacket *pkt) pframe_count = 0; } granule = (oggstream->last_kf_pts<kfgshift) | pframe_count; - } else + } else if (st->codec->codec_id == AV_CODEC_ID_OPUS) + granule = pkt->pts + pkt->duration + av_rescale_q(st->codec->delay, (AVRational){ 1, st->codec->sample_rate }, st->time_base); + else granule = pkt->pts + pkt->duration; - ret = ogg_buffer_data(s, st, pkt->data, pkt->size, granule); + ret = ogg_buffer_data(s, st, pkt->data, pkt->size, granule, 0); if (ret < 0) return ret; ogg_write_pages(s, 0); + oggstream->last_granule = granule; + return 0; } @@ -474,26 +562,27 @@ static int ogg_write_trailer(AVFormatContext *s) for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; OGGStreamContext *oggstream = st->priv_data; - if (st->codec->codec_id == CODEC_ID_FLAC || - st->codec->codec_id == CODEC_ID_SPEEX) { + if (st->codec->codec_id == AV_CODEC_ID_FLAC || + st->codec->codec_id == AV_CODEC_ID_SPEEX || + st->codec->codec_id == AV_CODEC_ID_OPUS) { av_free(oggstream->header[0]); - av_free(oggstream->header[1]); } + av_freep(&oggstream->header[1]); av_freep(&st->priv_data); } return 0; } -AVOutputFormat ogg_muxer = { - "ogg", - NULL_IF_CONFIG_SMALL("Ogg"), - "application/ogg", - "ogg,ogv,spx", - sizeof(OGGContext), - CODEC_ID_FLAC, - CODEC_ID_THEORA, - ogg_write_header, - ogg_write_packet, - ogg_write_trailer, - .metadata_conv = ff_vorbiscomment_metadata_conv, +AVOutputFormat ff_ogg_muxer = { + .name = "ogg", + .long_name = NULL_IF_CONFIG_SMALL("Ogg"), + .mime_type = "application/ogg", + .extensions = "ogg,ogv,spx,opus", + .priv_data_size = sizeof(OGGContext), + .audio_codec = AV_CODEC_ID_FLAC, + .video_codec = AV_CODEC_ID_THEORA, + .write_header = ogg_write_header, + .write_packet = ogg_write_packet, + .write_trailer = ogg_write_trailer, + .priv_class = &ogg_muxer_class, };