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-rw-r--r--libavformat/oggenc.c146
1 files changed, 122 insertions, 24 deletions
diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c
index 19c77595f4..f6a6d7d96d 100644
--- a/libavformat/oggenc.c
+++ b/libavformat/oggenc.c
@@ -2,20 +2,20 @@
* 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
*/
@@ -77,6 +77,8 @@ 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 (deprecated)",
OFFSET(pref_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, MAX_PAGE_SIZE, PARAM },
{ "page_duration", "preferred page duration, in microseconds",
@@ -84,14 +86,6 @@ static const AVOption options[] = {
{ 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 = avio_tell(pb);
@@ -139,6 +133,11 @@ 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)
@@ -209,9 +208,14 @@ 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;
@@ -270,7 +274,7 @@ 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;
@@ -412,7 +416,7 @@ static void ogg_write_pages(AVFormatContext *s, int flush)
static int ogg_write_header(AVFormatContext *s)
{
OGGContext *ogg = s->priv_data;
- OGGStreamContext *oggstream;
+ OGGStreamContext *oggstream = NULL;
int i, j;
if (ogg->pref_size)
@@ -422,12 +426,13 @@ static int ogg_write_header(AVFormatContext *s)
AVStream *st = s->streams[i];
unsigned serial_num = i;
- if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
+ if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
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);
+ }
if (st->codec->codec_id != AV_CODEC_ID_VORBIS &&
st->codec->codec_id != AV_CODEC_ID_THEORA &&
@@ -443,6 +448,9 @@ static int ogg_write_header(AVFormatContext *s)
return -1;
}
oggstream = av_mallocz(sizeof(*oggstream));
+ if (!oggstream)
+ return AVERROR(ENOMEM);
+
oggstream->page.stream_index = i;
if (!(s->flags & AVFMT_FLAG_BITEXACT))
@@ -456,11 +464,13 @@ static int ogg_write_header(AVFormatContext *s)
} while (j < i);
oggstream->serial_num = serial_num;
+ av_dict_copy(&st->metadata, s->metadata, AV_DICT_DONT_OVERWRITE);
+
st->priv_data = oggstream;
if (st->codec->codec_id == AV_CODEC_ID_FLAC) {
int err = ogg_build_flac_headers(st->codec, oggstream,
s->flags & AVFMT_FLAG_BITEXACT,
- &s->metadata);
+ &st->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing FLAC headers\n");
av_freep(&st->priv_data);
@@ -469,7 +479,7 @@ static int ogg_write_header(AVFormatContext *s)
} else if (st->codec->codec_id == AV_CODEC_ID_SPEEX) {
int err = ogg_build_speex_headers(st->codec, oggstream,
s->flags & AVFMT_FLAG_BITEXACT,
- &s->metadata);
+ &st->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing Speex headers\n");
av_freep(&st->priv_data);
@@ -478,7 +488,7 @@ static int ogg_write_header(AVFormatContext *s)
} else if (st->codec->codec_id == AV_CODEC_ID_OPUS) {
int err = ogg_build_opus_headers(st->codec, oggstream,
s->flags & AVFMT_FLAG_BITEXACT,
- &s->metadata);
+ &st->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing Opus headers\n");
av_freep(&st->priv_data);
@@ -499,7 +509,7 @@ static int ogg_write_header(AVFormatContext *s)
}
p = ogg_write_vorbiscomment(7, s->flags & AVFMT_FLAG_BITEXACT,
- &oggstream->header_len[1], &s->metadata,
+ &oggstream->header_len[1], &st->metadata,
framing_bit);
oggstream->header[1] = p;
if (!p)
@@ -530,7 +540,7 @@ static int ogg_write_header(AVFormatContext *s)
AVStream *st = s->streams[j];
OGGStreamContext *oggstream = st->priv_data;
for (i = 1; i < 3; i++) {
- if (oggstream && oggstream->header_len[i])
+ if (oggstream->header_len[i])
ogg_buffer_data(s, st, oggstream->header[i],
oggstream->header_len[i], 0, 1);
}
@@ -619,7 +629,7 @@ 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);
@@ -627,11 +637,26 @@ static int ogg_write_trailer(AVFormatContext *s)
return 0;
}
+#if CONFIG_OGG_MUXER
+static const AVClass ogg_muxer_class = {
+ .class_name = "Ogg muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVOutputFormat ff_ogg_muxer = {
.name = "ogg",
.long_name = NULL_IF_CONFIG_SMALL("Ogg"),
.mime_type = "application/ogg",
- .extensions = "ogg,ogv,spx,opus",
+ .extensions = "ogg,ogv"
+#if !CONFIG_SPEEX_MUXER
+ ",spx"
+#endif
+#if !CONFIG_OPUS_MUXER
+ ",opus"
+#endif
+ ,
.priv_data_size = sizeof(OGGContext),
.audio_codec = CONFIG_LIBVORBIS_ENCODER ?
AV_CODEC_ID_VORBIS : AV_CODEC_ID_FLAC,
@@ -642,3 +667,76 @@ AVOutputFormat ff_ogg_muxer = {
.flags = AVFMT_TS_NEGATIVE | AVFMT_ALLOW_FLUSH,
.priv_class = &ogg_muxer_class,
};
+#endif
+
+#if CONFIG_OGA_MUXER
+static const AVClass oga_muxer_class = {
+ .class_name = "Ogg audio muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_oga_muxer = {
+ .name = "oga",
+ .long_name = NULL_IF_CONFIG_SMALL("Ogg audio"),
+ .mime_type = "audio/ogg",
+ .extensions = "oga",
+ .priv_data_size = sizeof(OGGContext),
+ .audio_codec = AV_CODEC_ID_VORBIS,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = ogg_write_header,
+ .write_packet = ogg_write_packet,
+ .write_trailer = ogg_write_trailer,
+ .flags = AVFMT_TS_NEGATIVE,
+ .priv_class = &oga_muxer_class,
+};
+#endif
+
+#if CONFIG_SPEEX_MUXER
+static const AVClass speex_muxer_class = {
+ .class_name = "Speex muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_speex_muxer = {
+ .name = "speex",
+ .long_name = NULL_IF_CONFIG_SMALL("Speex"),
+ .mime_type = "audio/ogg",
+ .extensions = "spx",
+ .priv_data_size = sizeof(OGGContext),
+ .audio_codec = AV_CODEC_ID_SPEEX,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = ogg_write_header,
+ .write_packet = ogg_write_packet,
+ .write_trailer = ogg_write_trailer,
+ .flags = AVFMT_TS_NEGATIVE,
+ .priv_class = &speex_muxer_class,
+};
+#endif
+
+#if CONFIG_OPUS_MUXER
+static const AVClass opus_muxer_class = {
+ .class_name = "Opus muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_opus_muxer = {
+ .name = "opus",
+ .long_name = NULL_IF_CONFIG_SMALL("Opus"),
+ .mime_type = "audio/ogg",
+ .extensions = "opus",
+ .priv_data_size = sizeof(OGGContext),
+ .audio_codec = AV_CODEC_ID_OPUS,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = ogg_write_header,
+ .write_packet = ogg_write_packet,
+ .write_trailer = ogg_write_trailer,
+ .flags = AVFMT_TS_NEGATIVE,
+ .priv_class = &opus_muxer_class,
+};
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 19:43:15 +0000