diff options
Diffstat (limited to 'libavformat/oggenc.c')
| -rw-r--r-- | libavformat/oggenc.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c index c1f22d1..4871a0e 100644 --- a/libavformat/oggenc.c +++ b/libavformat/oggenc.c @@ -2,24 +2,25 @@ * Ogg muxer * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at free dot fr> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; 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/opt.h" #include "libavutil/mathematics.h" #include "libavutil/opt.h" #include "libavutil/random_seed.h" @@ -73,6 +74,8 @@ typedef struct { #define PARAM AV_OPT_FLAG_ENCODING_PARAM static const AVOption options[] = { + { "oggpagesize", "Set preferred Ogg page size.", + offsetof(OGGContext, pref_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, MAX_PAGE_SIZE, AV_OPT_FLAG_ENCODING_PARAM}, { "pagesize", "preferred page size in bytes", OFFSET(pref_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, MAX_PAGE_SIZE, PARAM }, { NULL }, @@ -133,6 +136,11 @@ static int ogg_write_page(AVFormatContext *s, OGGPage *page, int extra_flags) return 0; } +static int ogg_key_granule(OGGStreamContext *oggstream, int64_t granule) +{ + return oggstream->kfgshift && !(granule & ((1<<oggstream->kfgshift)-1)); +} + static int64_t ogg_granule_to_timestamp(OGGStreamContext *oggstream, int64_t granule) { if (oggstream->kfgshift) @@ -202,9 +210,14 @@ static int ogg_buffer_data(AVFormatContext *s, AVStream *st, int i, segments, len, flush = 0; // Handles VFR by flushing page because this frame needs to have a timestamp + // For theora, keyframes also need to have a timestamp to correctly mark + // them as such, otherwise seeking will not work correctly at the very + // least with old libogg versions. + // Do not try to flush header packets though, that will create broken files. 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) { + (ogg_granule_to_timestamp(oggstream, granule) > + ogg_granule_to_timestamp(oggstream, oggstream->last_granule) + 1 || + ogg_key_granule(oggstream, granule))) { if (oggstream->page.granule != -1) ogg_buffer_page(s, oggstream); flush = 1; @@ -247,7 +260,7 @@ static int ogg_buffer_data(AVFormatContext *s, AVStream *st, static uint8_t *ogg_write_vorbiscomment(int offset, int bitexact, int *header_len, AVDictionary **m, int framing_bit) { - const char *vendor = bitexact ? "Libav" : LIBAVFORMAT_IDENT; + const char *vendor = bitexact ? "ffmpeg" : LIBAVFORMAT_IDENT; int size; uint8_t *p, *p0; unsigned int count; @@ -565,7 +578,7 @@ static int ogg_write_trailer(AVFormatContext *s) 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_freep(&oggstream->header[0]); } av_freep(&oggstream->header[1]); av_freep(&st->priv_data); |
