* Matroska muxer
* Copyright (c) 2007 David Conrad
*
- * 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 "avc.h"
#include "avformat.h"
-#include "riff.h"
+#include "avlanguage.h"
+#include "flacenc.h"
+#include "internal.h"
#include "isom.h"
#include "matroska.h"
-#include "avc.h"
-#include "flacenc.h"
+#include "riff.h"
+#include "wv.h"
+
+#include "libavutil/avstring.h"
+#include "libavutil/dict.h"
+#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
-#include "libavutil/md5.h"
+#include "libavutil/lfg.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
+#include "libavutil/random_seed.h"
+#include "libavutil/samplefmt.h"
+
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"
int write_dts;
} mkv_track;
+#define MODE_MATROSKAv2 0x01
+#define MODE_WEBM 0x02
+
typedef struct MatroskaMuxContext {
- ByteIOContext *dyn_bc;
+ const AVClass *class;
+ int mode;
+ AVIOContext *dyn_bc;
ebml_master segment;
int64_t segment_offset;
- int64_t segment_uid;
ebml_master cluster;
int64_t cluster_pos; ///< file offset of the current cluster
int64_t cluster_pts;
int64_t duration_offset;
int64_t duration;
mkv_seekhead *main_seekhead;
- mkv_seekhead *cluster_seekhead;
mkv_cues *cues;
mkv_track *tracks;
- struct AVMD5 *md5_ctx;
- unsigned int audio_buffer_size;
AVPacket cur_audio_pkt;
+
+ int have_attachments;
+
+ int reserve_cues_space;
+ int64_t cues_pos;
} MatroskaMuxContext;
return (av_log2(id+1)-1)/7+1;
}
-static void put_ebml_id(ByteIOContext *pb, unsigned int id)
+static void put_ebml_id(AVIOContext *pb, unsigned int id)
{
int i = ebml_id_size(id);
while (i--)
- put_byte(pb, id >> (i*8));
+ avio_w8(pb, id >> (i*8));
}
/**
*
* @param bytes The number of bytes the size should occupy (maximum: 8).
*/
-static void put_ebml_size_unknown(ByteIOContext *pb, int bytes)
+static void put_ebml_size_unknown(AVIOContext *pb, int bytes)
{
assert(bytes <= 8);
- put_byte(pb, 0x1ff >> bytes);
+ avio_w8(pb, 0x1ff >> bytes);
while (--bytes)
- put_byte(pb, 0xff);
+ avio_w8(pb, 0xff);
}
/**
* @param bytes The number of bytes that need to be used to write the number.
* If zero, any number of bytes can be used.
*/
-static void put_ebml_num(ByteIOContext *pb, uint64_t num, int bytes)
+static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes)
{
int i, needed_bytes = ebml_num_size(num);
num |= 1ULL << bytes*7;
for (i = bytes - 1; i >= 0; i--)
- put_byte(pb, num >> i*8);
+ avio_w8(pb, num >> i*8);
}
-static void put_ebml_uint(ByteIOContext *pb, unsigned int elementid, uint64_t val)
+static void put_ebml_uint(AVIOContext *pb, unsigned int elementid, uint64_t val)
{
int i, bytes = 1;
uint64_t tmp = val;
put_ebml_id(pb, elementid);
put_ebml_num(pb, bytes, 0);
for (i = bytes - 1; i >= 0; i--)
- put_byte(pb, val >> i*8);
+ avio_w8(pb, val >> i*8);
}
-static void put_ebml_float(ByteIOContext *pb, unsigned int elementid, double val)
+static void put_ebml_float(AVIOContext *pb, unsigned int elementid, double val)
{
put_ebml_id(pb, elementid);
put_ebml_num(pb, 8, 0);
- put_be64(pb, av_dbl2int(val));
+ avio_wb64(pb, av_double2int(val));
}
-static void put_ebml_binary(ByteIOContext *pb, unsigned int elementid,
- const uint8_t *buf, int size)
+static void put_ebml_binary(AVIOContext *pb, unsigned int elementid,
+ const void *buf, int size)
{
put_ebml_id(pb, elementid);
put_ebml_num(pb, size, 0);
- put_buffer(pb, buf, size);
+ avio_write(pb, buf, size);
}
-static void put_ebml_string(ByteIOContext *pb, unsigned int elementid, const char *str)
+static void put_ebml_string(AVIOContext *pb, unsigned int elementid, const char *str)
{
put_ebml_binary(pb, elementid, str, strlen(str));
}
/**
- * Writes a void element of a given size. Useful for reserving space in
+ * Write a void element of a given size. Useful for reserving space in
* the file to be written to later.
*
* @param size The number of bytes to reserve, which must be at least 2.
*/
-static void put_ebml_void(ByteIOContext *pb, uint64_t size)
+static void put_ebml_void(AVIOContext *pb, uint64_t size)
{
- int64_t currentpos = url_ftell(pb);
+ int64_t currentpos = avio_tell(pb);
assert(size >= 2);
put_ebml_num(pb, size-1, 0);
else
put_ebml_num(pb, size-9, 8);
- while(url_ftell(pb) < currentpos + size)
- put_byte(pb, 0);
+ while(avio_tell(pb) < currentpos + size)
+ avio_w8(pb, 0);
}
-static ebml_master start_ebml_master(ByteIOContext *pb, unsigned int elementid, uint64_t expectedsize)
+static ebml_master start_ebml_master(AVIOContext *pb, unsigned int elementid, uint64_t expectedsize)
{
int bytes = expectedsize ? ebml_num_size(expectedsize) : 8;
put_ebml_id(pb, elementid);
put_ebml_size_unknown(pb, bytes);
- return (ebml_master){ url_ftell(pb), bytes };
+ return (ebml_master){ avio_tell(pb), bytes };
}
-static void end_ebml_master(ByteIOContext *pb, ebml_master master)
+static void end_ebml_master(AVIOContext *pb, ebml_master master)
{
- int64_t pos = url_ftell(pb);
+ int64_t pos = avio_tell(pb);
- if (url_fseek(pb, master.pos - master.sizebytes, SEEK_SET) < 0)
+ if (avio_seek(pb, master.pos - master.sizebytes, SEEK_SET) < 0)
return;
put_ebml_num(pb, pos - master.pos, master.sizebytes);
- url_fseek(pb, pos, SEEK_SET);
+ avio_seek(pb, pos, SEEK_SET);
}
-static void put_xiph_size(ByteIOContext *pb, int size)
+static void put_xiph_size(AVIOContext *pb, int size)
{
int i;
for (i = 0; i < size / 255; i++)
- put_byte(pb, 255);
- put_byte(pb, size % 255);
+ avio_w8(pb, 255);
+ avio_w8(pb, size % 255);
}
/**
* @param numelements The maximum number of elements that will be indexed
* by this seek head, 0 if unlimited.
*/
-static mkv_seekhead * mkv_start_seekhead(ByteIOContext *pb, int64_t segment_offset, int numelements)
+static mkv_seekhead * mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset, int numelements)
{
mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead));
if (new_seekhead == NULL)
new_seekhead->segment_offset = segment_offset;
if (numelements > 0) {
- new_seekhead->filepos = url_ftell(pb);
+ new_seekhead->filepos = avio_tell(pb);
// 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID
// and size, and 3 bytes to guarantee that an EBML void element
// will fit afterwards
* @return The file offset where the seekhead was written,
* -1 if an error occurred.
*/
-static int64_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead)
+static int64_t mkv_write_seekhead(AVIOContext *pb, mkv_seekhead *seekhead)
{
ebml_master metaseek, seekentry;
int64_t currentpos;
int i;
- currentpos = url_ftell(pb);
+ currentpos = avio_tell(pb);
- if (seekhead->reserved_size > 0)
- if (url_fseek(pb, seekhead->filepos, SEEK_SET) < 0)
- return -1;
+ if (seekhead->reserved_size > 0) {
+ if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) {
+ currentpos = -1;
+ goto fail;
+ }
+ }
metaseek = start_ebml_master(pb, MATROSKA_ID_SEEKHEAD, seekhead->reserved_size);
for (i = 0; i < seekhead->num_entries; i++) {
end_ebml_master(pb, metaseek);
if (seekhead->reserved_size > 0) {
- uint64_t remaining = seekhead->filepos + seekhead->reserved_size - url_ftell(pb);
+ uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb);
put_ebml_void(pb, remaining);
- url_fseek(pb, currentpos, SEEK_SET);
+ avio_seek(pb, currentpos, SEEK_SET);
currentpos = seekhead->filepos;
}
+fail:
av_free(seekhead->entries);
av_free(seekhead);
{
mkv_cuepoint *entries = cues->entries;
+ if (ts < 0)
+ return 0;
+
entries = av_realloc(entries, (cues->num_entries + 1) * sizeof(mkv_cuepoint));
if (entries == NULL)
return AVERROR(ENOMEM);
- if (ts < 0)
- return 0;
-
entries[cues->num_entries ].pts = ts;
entries[cues->num_entries ].tracknum = stream + 1;
entries[cues->num_entries++].cluster_pos = cluster_pos - cues->segment_offset;
return 0;
}
-static int64_t mkv_write_cues(ByteIOContext *pb, mkv_cues *cues, int num_tracks)
+static int64_t mkv_write_cues(AVIOContext *pb, mkv_cues *cues, int num_tracks)
{
ebml_master cues_element;
int64_t currentpos;
int i, j;
- currentpos = url_ftell(pb);
+ currentpos = avio_tell(pb);
cues_element = start_ebml_master(pb, MATROSKA_ID_CUES, 0);
for (i = 0; i < cues->num_entries; i++) {
}
end_ebml_master(pb, cues_element);
- av_free(cues->entries);
- av_free(cues);
return currentpos;
}
-static int put_xiph_codecpriv(AVFormatContext *s, ByteIOContext *pb, AVCodecContext *codec)
+static int put_xiph_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec)
{
uint8_t *header_start[3];
int header_len[3];
int first_header_size;
int j;
- if (codec->codec_id == CODEC_ID_VORBIS)
+ if (codec->codec_id == AV_CODEC_ID_VORBIS)
first_header_size = 30;
else
first_header_size = 42;
- if (ff_split_xiph_headers(codec->extradata, codec->extradata_size,
+ if (avpriv_split_xiph_headers(codec->extradata, codec->extradata_size,
first_header_size, header_start, header_len) < 0) {
av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n");
return -1;
}
- put_byte(pb, 2); // number packets - 1
+ avio_w8(pb, 2); // number packets - 1
for (j = 0; j < 2; j++) {
put_xiph_size(pb, header_len[j]);
}
for (j = 0; j < 3; j++)
- put_buffer(pb, header_start[j], header_len[j]);
+ avio_write(pb, header_start[j], header_len[j]);
return 0;
}
-static void get_aac_sample_rates(AVFormatContext *s, AVCodecContext *codec, int *sample_rate, int *output_sample_rate)
+static int put_wv_codecpriv(AVIOContext *pb, AVCodecContext *codec)
{
- int sri;
+ if (codec->extradata && codec->extradata_size == 2)
+ avio_write(pb, codec->extradata, 2);
+ else
+ avio_wl16(pb, 0x403); // fallback to the version mentioned in matroska specs
+ return 0;
+}
- if (codec->extradata_size < 2) {
- av_log(s, AV_LOG_WARNING, "No AAC extradata, unable to determine samplerate.\n");
- return;
- }
+static void get_aac_sample_rates(AVFormatContext *s, AVCodecContext *codec, int *sample_rate, int *output_sample_rate)
+{
+ MPEG4AudioConfig mp4ac;
- sri = ((codec->extradata[0] << 1) & 0xE) | (codec->extradata[1] >> 7);
- if (sri > 12) {
- av_log(s, AV_LOG_WARNING, "AAC samplerate index out of bounds\n");
+ if (avpriv_mpeg4audio_get_config(&mp4ac, codec->extradata,
+ codec->extradata_size * 8, 1) < 0) {
+ av_log(s, AV_LOG_WARNING, "Error parsing AAC extradata, unable to determine samplerate.\n");
return;
}
- *sample_rate = ff_mpeg4audio_sample_rates[sri];
- // if sbr, get output sample rate as well
- if (codec->extradata_size == 5) {
- sri = (codec->extradata[4] >> 3) & 0xF;
- if (sri > 12) {
- av_log(s, AV_LOG_WARNING, "AAC output samplerate index out of bounds\n");
- return;
- }
- *output_sample_rate = ff_mpeg4audio_sample_rates[sri];
- }
+ *sample_rate = mp4ac.sample_rate;
+ *output_sample_rate = mp4ac.ext_sample_rate;
}
-static int mkv_write_codecprivate(AVFormatContext *s, ByteIOContext *pb, AVCodecContext *codec, int native_id, int qt_id)
+static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec, int native_id, int qt_id)
{
- ByteIOContext *dyn_cp;
+ AVIOContext *dyn_cp;
uint8_t *codecpriv;
int ret, codecpriv_size;
- ret = url_open_dyn_buf(&dyn_cp);
+ ret = avio_open_dyn_buf(&dyn_cp);
if(ret < 0)
return ret;
if (native_id) {
- if (codec->codec_id == CODEC_ID_VORBIS || codec->codec_id == CODEC_ID_THEORA)
+ if (codec->codec_id == AV_CODEC_ID_VORBIS || codec->codec_id == AV_CODEC_ID_THEORA)
ret = put_xiph_codecpriv(s, dyn_cp, codec);
- else if (codec->codec_id == CODEC_ID_FLAC)
+ else if (codec->codec_id == AV_CODEC_ID_FLAC)
ret = ff_flac_write_header(dyn_cp, codec, 1);
- else if (codec->codec_id == CODEC_ID_H264)
+ else if (codec->codec_id == AV_CODEC_ID_WAVPACK)
+ ret = put_wv_codecpriv(dyn_cp, codec);
+ else if (codec->codec_id == AV_CODEC_ID_H264)
ret = ff_isom_write_avcc(dyn_cp, codec->extradata, codec->extradata_size);
+ else if (codec->codec_id == AV_CODEC_ID_ALAC) {
+ if (codec->extradata_size < 36) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid extradata found, ALAC expects a 36-byte "
+ "QuickTime atom.");
+ ret = AVERROR_INVALIDDATA;
+ } else
+ avio_write(dyn_cp, codec->extradata + 12,
+ codec->extradata_size - 12);
+ }
else if (codec->extradata_size)
- put_buffer(dyn_cp, codec->extradata, codec->extradata_size);
+ avio_write(dyn_cp, codec->extradata, codec->extradata_size);
} else if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
if (qt_id) {
if (!codec->codec_tag)
- codec->codec_tag = ff_codec_get_tag(codec_movvideo_tags, codec->codec_id);
+ codec->codec_tag = ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id);
if (codec->extradata_size)
- put_buffer(dyn_cp, codec->extradata, codec->extradata_size);
+ avio_write(dyn_cp, codec->extradata, codec->extradata_size);
} else {
if (!codec->codec_tag)
codec->codec_tag = ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id);
ff_put_wav_header(dyn_cp, codec);
}
- codecpriv_size = url_close_dyn_buf(dyn_cp, &codecpriv);
+ codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
if (codecpriv_size)
put_ebml_binary(pb, MATROSKA_ID_CODECPRIVATE, codecpriv, codecpriv_size);
av_free(codecpriv);
static int mkv_write_tracks(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ebml_master tracks;
int i, j, ret;
- ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, url_ftell(pb));
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, avio_tell(pb));
if (ret < 0) return ret;
tracks = start_ebml_master(pb, MATROSKA_ID_TRACKS, 0);
int bit_depth = av_get_bits_per_sample(codec->codec_id);
int sample_rate = codec->sample_rate;
int output_sample_rate = 0;
- AVMetadataTag *tag;
+ AVDictionaryEntry *tag;
+
+ if (codec->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
+ mkv->have_attachments = 1;
+ continue;
+ }
if (!bit_depth)
- bit_depth = av_get_bits_per_sample_format(codec->sample_fmt);
+ bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3;
- if (codec->codec_id == CODEC_ID_AAC)
+ if (codec->codec_id == AV_CODEC_ID_AAC)
get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate);
track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
put_ebml_uint (pb, MATROSKA_ID_TRACKUID , i + 1);
put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
- if ((tag = av_metadata_get(st->metadata, "title", NULL, 0)))
+ if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value);
- tag = av_metadata_get(st->metadata, "language", NULL, 0);
+ tag = av_dict_get(st->metadata, "language", NULL, 0);
put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und");
if (st->disposition)
// look for a codec ID string specific to mkv to use,
// if none are found, use AVI codes
- for (j = 0; ff_mkv_codec_tags[j].id != CODEC_ID_NONE; j++) {
+ for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
if (ff_mkv_codec_tags[j].id == codec->codec_id) {
put_ebml_string(pb, MATROSKA_ID_CODECID, ff_mkv_codec_tags[j].str);
native_id = 1;
}
}
+ if (mkv->mode == MODE_WEBM && !(codec->codec_id == AV_CODEC_ID_VP8 ||
+ codec->codec_id == AV_CODEC_ID_VORBIS)) {
+ av_log(s, AV_LOG_ERROR,
+ "Only VP8 video and Vorbis audio are supported for WebM.\n");
+ return AVERROR(EINVAL);
+ }
+
switch (codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, av_q2d(codec->time_base)*1E9);
if (!native_id &&
- ff_codec_get_tag(codec_movvideo_tags, codec->codec_id) &&
+ ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) &&
(!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id)
- || codec->codec_id == CODEC_ID_SVQ1
- || codec->codec_id == CODEC_ID_SVQ3
- || codec->codec_id == CODEC_ID_CINEPAK))
+ || codec->codec_id == AV_CODEC_ID_SVQ1
+ || codec->codec_id == AV_CODEC_ID_SVQ3
+ || codec->codec_id == AV_CODEC_ID_CINEPAK))
qt_id = 1;
if (qt_id)
// XXX: interlace flag?
put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width);
put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height);
+ if ((tag = av_dict_get(s->metadata, "stereo_mode", NULL, 0))) {
+ uint8_t stereo_fmt = atoi(tag->value);
+ int valid_fmt = 0;
+
+ switch (mkv->mode) {
+ case MODE_WEBM:
+ if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM
+ || stereo_fmt == MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT)
+ valid_fmt = 1;
+ break;
+ case MODE_MATROSKAv2:
+ if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL)
+ valid_fmt = 1;
+ break;
+ }
+
+ if (valid_fmt)
+ put_ebml_uint (pb, MATROSKA_ID_VIDEOSTEREOMODE, stereo_fmt);
+ }
if (st->sample_aspect_ratio.num) {
int d_width = codec->width*av_q2d(st->sample_aspect_ratio);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height);
+ put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, 3);
}
end_ebml_master(pb, subinfo);
break;
case AVMEDIA_TYPE_SUBTITLE:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_SUBTITLE);
+ if (!native_id) {
+ av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id);
+ return AVERROR(ENOSYS);
+ }
break;
default:
- av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.");
+ av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
break;
}
ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id);
end_ebml_master(pb, track);
// ms precision is the de-facto standard timescale for mkv files
- av_set_pts_info(st, 64, 1, 1000);
+ avpriv_set_pts_info(st, 64, 1, 1000);
}
end_ebml_master(pb, tracks);
return 0;
static int mkv_write_chapters(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ebml_master chapters, editionentry;
AVRational scale = {1, 1E9};
int i, ret;
if (!s->nb_chapters)
return 0;
- ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CHAPTERS, url_ftell(pb));
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CHAPTERS, avio_tell(pb));
if (ret < 0) return ret;
chapters = start_ebml_master(pb, MATROSKA_ID_CHAPTERS , 0);
for (i = 0; i < s->nb_chapters; i++) {
ebml_master chapteratom, chapterdisplay;
AVChapter *c = s->chapters[i];
- AVMetadataTag *t = NULL;
+ AVDictionaryEntry *t = NULL;
chapteratom = start_ebml_master(pb, MATROSKA_ID_CHAPTERATOM, 0);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id);
av_rescale_q(c->end, c->time_base, scale));
put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGENABLED, 1);
- if ((t = av_metadata_get(c->metadata, "title", NULL, 0))) {
+ if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
chapterdisplay = start_ebml_master(pb, MATROSKA_ID_CHAPTERDISPLAY, 0);
put_ebml_string(pb, MATROSKA_ID_CHAPSTRING, t->value);
put_ebml_string(pb, MATROSKA_ID_CHAPLANG , "und");
return 0;
}
+static void mkv_write_simpletag(AVIOContext *pb, AVDictionaryEntry *t)
+{
+ uint8_t *key = av_strdup(t->key);
+ uint8_t *p = key;
+ const uint8_t *lang = NULL;
+ ebml_master tag;
+
+ if ((p = strrchr(p, '-')) &&
+ (lang = av_convert_lang_to(p + 1, AV_LANG_ISO639_2_BIBL)))
+ *p = 0;
+
+ p = key;
+ while (*p) {
+ if (*p == ' ')
+ *p = '_';
+ else if (*p >= 'a' && *p <= 'z')
+ *p -= 'a' - 'A';
+ p++;
+ }
+
+ tag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0);
+ put_ebml_string(pb, MATROSKA_ID_TAGNAME, key);
+ if (lang)
+ put_ebml_string(pb, MATROSKA_ID_TAGLANG, lang);
+ put_ebml_string(pb, MATROSKA_ID_TAGSTRING, t->value);
+ end_ebml_master(pb, tag);
+
+ av_freep(&key);
+}
+
+static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid,
+ unsigned int uid, ebml_master *tags)
+{
+ MatroskaMuxContext *mkv = s->priv_data;
+ ebml_master tag, targets;
+ AVDictionaryEntry *t = NULL;
+ int ret;
+
+ if (!tags->pos) {
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TAGS, avio_tell(s->pb));
+ if (ret < 0) return ret;
+
+ *tags = start_ebml_master(s->pb, MATROSKA_ID_TAGS, 0);
+ }
+
+ tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0);
+ targets = start_ebml_master(s->pb, MATROSKA_ID_TAGTARGETS, 0);
+ if (elementid)
+ put_ebml_uint(s->pb, elementid, uid);
+ end_ebml_master(s->pb, targets);
+
+ while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX)))
+ if (av_strcasecmp(t->key, "title"))
+ mkv_write_simpletag(s->pb, t);
+
+ end_ebml_master(s->pb, tag);
+ return 0;
+}
+
+static int mkv_write_tags(AVFormatContext *s)
+{
+ ebml_master tags = {0};
+ int i, ret;
+
+ ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL);
+
+ if (av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX)) {
+ ret = mkv_write_tag(s, s->metadata, 0, 0, &tags);
+ if (ret < 0) return ret;
+ }
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+
+ if (!av_dict_get(st->metadata, "", 0, AV_DICT_IGNORE_SUFFIX))
+ continue;
+
+ ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags);
+ if (ret < 0) return ret;
+ }
+
+ for (i = 0; i < s->nb_chapters; i++) {
+ AVChapter *ch = s->chapters[i];
+
+ if (!av_dict_get(ch->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX))
+ continue;
+
+ ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id, &tags);
+ if (ret < 0) return ret;
+ }
+
+ if (tags.pos)
+ end_ebml_master(s->pb, tags);
+ return 0;
+}
+
+static int mkv_write_attachments(AVFormatContext *s)
+{
+ MatroskaMuxContext *mkv = s->priv_data;
+ AVIOContext *pb = s->pb;
+ ebml_master attachments;
+ AVLFG c;
+ int i, ret;
+
+ if (!mkv->have_attachments)
+ return 0;
+
+ av_lfg_init(&c, av_get_random_seed());
+
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_ATTACHMENTS, avio_tell(pb));
+ if (ret < 0) return ret;
+
+ attachments = start_ebml_master(pb, MATROSKA_ID_ATTACHMENTS, 0);
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ ebml_master attached_file;
+ AVDictionaryEntry *t;
+ const char *mimetype = NULL;
+
+ if (st->codec->codec_type != AVMEDIA_TYPE_ATTACHMENT)
+ continue;
+
+ attached_file = start_ebml_master(pb, MATROSKA_ID_ATTACHEDFILE, 0);
+
+ if (t = av_dict_get(st->metadata, "title", NULL, 0))
+ put_ebml_string(pb, MATROSKA_ID_FILEDESC, t->value);
+ if (!(t = av_dict_get(st->metadata, "filename", NULL, 0))) {
+ av_log(s, AV_LOG_ERROR, "Attachment stream %d has no filename tag.\n", i);
+ return AVERROR(EINVAL);
+ }
+ put_ebml_string(pb, MATROSKA_ID_FILENAME, t->value);
+ if (t = av_dict_get(st->metadata, "mimetype", NULL, 0))
+ mimetype = t->value;
+ else if (st->codec->codec_id != AV_CODEC_ID_NONE ) {
+ int i;
+ for (i = 0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
+ if (ff_mkv_mime_tags[i].id == st->codec->codec_id) {
+ mimetype = ff_mkv_mime_tags[i].str;
+ break;
+ }
+ }
+ if (!mimetype) {
+ av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and "
+ "it cannot be deduced from the codec id.\n", i);
+ return AVERROR(EINVAL);
+ }
+
+ put_ebml_string(pb, MATROSKA_ID_FILEMIMETYPE, mimetype);
+ put_ebml_binary(pb, MATROSKA_ID_FILEDATA, st->codec->extradata, st->codec->extradata_size);
+ put_ebml_uint(pb, MATROSKA_ID_FILEUID, av_lfg_get(&c));
+ end_ebml_master(pb, attached_file);
+ }
+ end_ebml_master(pb, attachments);
+
+ return 0;
+}
+
static int mkv_write_header(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ebml_master ebml_header, segment_info;
- AVMetadataTag *tag;
- int ret;
+ AVDictionaryEntry *tag;
+ int ret, i;
+
+ if (!strcmp(s->oformat->name, "webm")) mkv->mode = MODE_WEBM;
+ else mkv->mode = MODE_MATROSKAv2;
- mkv->md5_ctx = av_mallocz(av_md5_size);
- av_md5_init(mkv->md5_ctx);
mkv->tracks = av_mallocz(s->nb_streams * sizeof(*mkv->tracks));
+ if (!mkv->tracks)
+ return AVERROR(ENOMEM);
ebml_header = start_ebml_master(pb, EBML_ID_HEADER, 0);
put_ebml_uint (pb, EBML_ID_EBMLVERSION , 1);
put_ebml_uint (pb, EBML_ID_EBMLREADVERSION , 1);
put_ebml_uint (pb, EBML_ID_EBMLMAXIDLENGTH , 4);
put_ebml_uint (pb, EBML_ID_EBMLMAXSIZELENGTH , 8);
- put_ebml_string (pb, EBML_ID_DOCTYPE , "matroska");
+ put_ebml_string (pb, EBML_ID_DOCTYPE , s->oformat->name);
put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , 2);
put_ebml_uint (pb, EBML_ID_DOCTYPEREADVERSION , 2);
end_ebml_master(pb, ebml_header);
mkv->segment = start_ebml_master(pb, MATROSKA_ID_SEGMENT, 0);
- mkv->segment_offset = url_ftell(pb);
+ mkv->segment_offset = avio_tell(pb);
// we write 2 seek heads - one at the end of the file to point to each
// cluster, and one at the beginning to point to all other level one
// isn't more than 10 elements if we only write one of each other
// currently defined level 1 element
mkv->main_seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10);
- mkv->cluster_seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 0);
- if (mkv->main_seekhead == NULL || mkv->cluster_seekhead == NULL)
+ if (!mkv->main_seekhead)
return AVERROR(ENOMEM);
- ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_INFO, url_ftell(pb));
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_INFO, avio_tell(pb));
if (ret < 0) return ret;
segment_info = start_ebml_master(pb, MATROSKA_ID_INFO, 0);
put_ebml_uint(pb, MATROSKA_ID_TIMECODESCALE, 1000000);
- if ((tag = av_metadata_get(s->metadata, "title", NULL, 0)))
+ if ((tag = av_dict_get(s->metadata, "title", NULL, 0)))
put_ebml_string(pb, MATROSKA_ID_TITLE, tag->value);
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
+ uint32_t segment_uid[4];
+ AVLFG lfg;
+
+ av_lfg_init(&lfg, av_get_random_seed());
+
+ for (i = 0; i < 4; i++)
+ segment_uid[i] = av_lfg_get(&lfg);
+
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);
-
- // reserve space to write the segment UID later
- mkv->segment_uid = url_ftell(pb);
- put_ebml_void(pb, 19);
+ put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
}
// reserve space for the duration
mkv->duration = 0;
- mkv->duration_offset = url_ftell(pb);
+ mkv->duration_offset = avio_tell(pb);
put_ebml_void(pb, 11); // assumes double-precision float to be written
end_ebml_master(pb, segment_info);
ret = mkv_write_tracks(s);
if (ret < 0) return ret;
- ret = mkv_write_chapters(s);
- if (ret < 0) return ret;
+ if (mkv->mode != MODE_WEBM) {
+ ret = mkv_write_chapters(s);
+ if (ret < 0) return ret;
+
+ ret = mkv_write_tags(s);
+ if (ret < 0) return ret;
+
+ ret = mkv_write_attachments(s);
+ if (ret < 0) return ret;
+ }
- if (url_is_streamed(s->pb))
+ if (!s->pb->seekable)
mkv_write_seekhead(pb, mkv->main_seekhead);
mkv->cues = mkv_start_cues(mkv->segment_offset);
if (mkv->cues == NULL)
return AVERROR(ENOMEM);
+ if (pb->seekable && mkv->reserve_cues_space) {
+ mkv->cues_pos = avio_tell(pb);
+ put_ebml_void(pb, mkv->reserve_cues_space);
+ }
+
av_init_packet(&mkv->cur_audio_pkt);
mkv->cur_audio_pkt.size = 0;
- mkv->audio_buffer_size = 0;
- put_flush_packet(pb);
+ avio_flush(pb);
return 0;
}
return end - start;
}
-static int mkv_write_ass_blocks(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt)
+static int mkv_write_ass_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
int i, layer = 0, max_duration = 0, size, line_size, data_size = pkt->size;
size -= start - data;
sscanf(data, "Dialogue: %d,", &layer);
i = snprintf(buffer, sizeof(buffer), "%"PRId64",%d,",
- s->streams[pkt->stream_index]->nb_frames++, layer);
+ s->streams[pkt->stream_index]->nb_frames, layer);
size = FFMIN(i+size, sizeof(buffer));
memcpy(buffer+i, start, size-i);
av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, "
"pts %" PRId64 ", duration %d\n",
- url_ftell(pb), size, pkt->pts, duration);
+ avio_tell(pb), size, pkt->pts, duration);
blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(size));
put_ebml_id(pb, MATROSKA_ID_BLOCK);
put_ebml_num(pb, size+4, 0);
- put_byte(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
- put_be16(pb, pkt->pts - mkv->cluster_pts);
- put_byte(pb, 0);
- put_buffer(pb, buffer, size);
+ avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
+ avio_wb16(pb, pkt->pts - mkv->cluster_pts);
+ avio_w8(pb, 0);
+ avio_write(pb, buffer, size);
put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
end_ebml_master(pb, blockgroup);
return max_duration;
}
-static void mkv_write_block(AVFormatContext *s, ByteIOContext *pb,
+static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
+{
+ uint8_t *dst;
+ int srclen = *size;
+ int offset = 0;
+ int ret;
+
+ dst = av_malloc(srclen);
+ if (!dst)
+ return AVERROR(ENOMEM);
+
+ while (srclen >= WV_HEADER_SIZE) {
+ WvHeader header;
+
+ ret = ff_wv_parse_header(&header, src);
+ if (ret < 0)
+ goto fail;
+ src += WV_HEADER_SIZE;
+ srclen -= WV_HEADER_SIZE;
+
+ if (srclen < header.blocksize) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ if (header.initial) {
+ AV_WL32(dst + offset, header.samples);
+ offset += 4;
+ }
+ AV_WL32(dst + offset, header.flags);
+ AV_WL32(dst + offset + 4, header.crc);
+ offset += 8;
+
+ if (!(header.initial && header.final)) {
+ AV_WL32(dst + offset, header.blocksize);
+ offset += 4;
+ }
+
+ memcpy(dst + offset, src, header.blocksize);
+ src += header.blocksize;
+ srclen -= header.blocksize;
+ offset += header.blocksize;
+ }
+
+ *pdst = dst;
+ *size = offset;
+
+ return 0;
+fail:
+ av_freep(&dst);
+ return ret;
+}
+
+static void mkv_write_block(AVFormatContext *s, AVIOContext *pb,
unsigned int blockid, AVPacket *pkt, int flags)
{
MatroskaMuxContext *mkv = s->priv_data;
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
uint8_t *data = NULL;
- int size = pkt->size;
+ int offset = 0, size = pkt->size;
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, "
"pts %" PRId64 ", dts %" PRId64 ", duration %d, flags %d\n",
- url_ftell(pb), pkt->size, pkt->pts, pkt->dts, pkt->duration, flags);
- if (codec->codec_id == CODEC_ID_H264 && codec->extradata_size > 0 &&
+ avio_tell(pb), pkt->size, pkt->pts, pkt->dts, pkt->duration, flags);
+ if (codec->codec_id == AV_CODEC_ID_H264 && codec->extradata_size > 0 &&
(AV_RB24(codec->extradata) == 1 || AV_RB32(codec->extradata) == 1))
ff_avc_parse_nal_units_buf(pkt->data, &data, &size);
- else
+ else if (codec->codec_id == AV_CODEC_ID_WAVPACK) {
+ int ret = mkv_strip_wavpack(pkt->data, &data, &size);
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "Error stripping a WavPack packet.\n");
+ return;
+ }
+ } else
data = pkt->data;
+
+ if (codec->codec_id == AV_CODEC_ID_PRORES) {
+ /* Matroska specification requires to remove the first QuickTime atom
+ */
+ size -= 8;
+ offset = 8;
+ }
+
put_ebml_id(pb, blockid);
put_ebml_num(pb, size+4, 0);
- put_byte(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
- put_be16(pb, ts - mkv->cluster_pts);
- put_byte(pb, flags);
- put_buffer(pb, data, size);
+ avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
+ avio_wb16(pb, ts - mkv->cluster_pts);
+ avio_w8(pb, flags);
+ avio_write(pb, data + offset, size);
if (data != pkt->data)
av_free(data);
}
+static int srt_get_duration(uint8_t **buf)
+{
+ int i, duration = 0;
+
+ for (i=0; i<2 && !duration; i++) {
+ int s_hour, s_min, s_sec, s_hsec, e_hour, e_min, e_sec, e_hsec;
+ if (sscanf(*buf, "%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d",
+ &s_hour, &s_min, &s_sec, &s_hsec,
+ &e_hour, &e_min, &e_sec, &e_hsec) == 8) {
+ s_min += 60*s_hour; e_min += 60*e_hour;
+ s_sec += 60*s_min; e_sec += 60*e_min;
+ s_hsec += 1000*s_sec; e_hsec += 1000*e_sec;
+ duration = e_hsec - s_hsec;
+ }
+ *buf += strcspn(*buf, "\n") + 1;
+ }
+ return duration;
+}
+
+static int mkv_write_srt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
+{
+ ebml_master blockgroup;
+ AVPacket pkt2 = *pkt;
+ int64_t duration = srt_get_duration(&pkt2.data);
+ pkt2.size -= pkt2.data - pkt->data;
+
+ blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP,
+ mkv_blockgroup_size(pkt2.size));
+ mkv_write_block(s, pb, MATROSKA_ID_BLOCK, &pkt2, 0);
+ put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
+ end_ebml_master(pb, blockgroup);
+
+ return duration;
+}
+
static void mkv_flush_dynbuf(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
if (!mkv->dyn_bc)
return;
- bufsize = url_close_dyn_buf(mkv->dyn_bc, &dyn_buf);
- put_buffer(s->pb, dyn_buf, bufsize);
+ bufsize = avio_close_dyn_buf(mkv->dyn_bc, &dyn_buf);
+ avio_write(s->pb, dyn_buf, bufsize);
av_free(dyn_buf);
mkv->dyn_bc = NULL;
}
static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
int duration = pkt->duration;
return AVERROR(EINVAL);
}
- if (url_is_streamed(s->pb)) {
+ if (!s->pb->seekable) {
if (!mkv->dyn_bc)
- url_open_dyn_buf(&mkv->dyn_bc);
+ avio_open_dyn_buf(&mkv->dyn_bc);
pb = mkv->dyn_bc;
}
if (!mkv->cluster_pos) {
- ret = mkv_add_seekhead_entry(mkv->cluster_seekhead, MATROSKA_ID_CLUSTER, url_ftell(pb));
- if (ret < 0) return ret;
-
- mkv->cluster_pos = url_ftell(s->pb);
+ mkv->cluster_pos = avio_tell(s->pb);
mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0);
put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts));
mkv->cluster_pts = FFMAX(0, ts);
- av_md5_update(mkv->md5_ctx, pkt->data, FFMIN(200, pkt->size));
}
if (codec->codec_type != AVMEDIA_TYPE_SUBTITLE) {
mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe << 7);
- } else if (codec->codec_id == CODEC_ID_SSA) {
+ } else if (codec->codec_id == AV_CODEC_ID_SSA) {
duration = mkv_write_ass_blocks(s, pb, pkt);
+ } else if (codec->codec_id == AV_CODEC_ID_SRT) {
+ duration = mkv_write_srt_blocks(s, pb, pkt);
} else {
ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(pkt->size));
duration = pkt->convergence_duration;
return 0;
}
-static int mkv_copy_packet(MatroskaMuxContext *mkv, const AVPacket *pkt)
-{
- uint8_t *data = mkv->cur_audio_pkt.data;
- mkv->cur_audio_pkt = *pkt;
- mkv->cur_audio_pkt.data = av_fast_realloc(data, &mkv->audio_buffer_size, pkt->size);
- if (!mkv->cur_audio_pkt.data)
- return AVERROR(ENOMEM);
-
- memcpy(mkv->cur_audio_pkt.data, pkt->data, pkt->size);
- mkv->cur_audio_pkt.size = pkt->size;
- return 0;
-}
-
static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = url_is_streamed(s->pb) ? mkv->dyn_bc : s->pb;
- AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
- int ret, keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
- int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
- int cluster_size = url_ftell(pb) - (url_is_streamed(s->pb) ? 0 : mkv->cluster_pos);
+ int codec_type = s->streams[pkt->stream_index]->codec->codec_type;
+ int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
+ int cluster_size;
+ int cluster_size_limit;
+ int64_t cluster_time;
+ int64_t cluster_time_limit;
+ AVIOContext *pb;
+ int ret;
+
+ if (mkv->tracks[pkt->stream_index].write_dts)
+ cluster_time = pkt->dts - mkv->cluster_pts;
+ else
+ cluster_time = pkt->pts - mkv->cluster_pts;
// start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
// after 4k and on a keyframe
+ if (s->pb->seekable) {
+ pb = s->pb;
+ cluster_size = avio_tell(pb) - mkv->cluster_pos;
+ cluster_time_limit = 5000;
+ cluster_size_limit = 5 * 1024 * 1024;
+ } else {
+ pb = mkv->dyn_bc;
+ cluster_size = avio_tell(pb);
+ cluster_time_limit = 1000;
+ cluster_size_limit = 32 * 1024;
+ }
+
if (mkv->cluster_pos &&
- ((url_is_streamed(s->pb) && (cluster_size > 32*1024 || ts > mkv->cluster_pts + 1000))
- || cluster_size > 5*1024*1024 || ts > mkv->cluster_pts + 5000
- || (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe && cluster_size > 4*1024))) {
+ (cluster_size > cluster_size_limit ||
+ cluster_time > cluster_time_limit ||
+ (codec_type == AVMEDIA_TYPE_VIDEO && keyframe &&
+ cluster_size > 4 * 1024))) {
av_log(s, AV_LOG_DEBUG, "Starting new cluster at offset %" PRIu64
- " bytes, pts %" PRIu64 "\n", url_ftell(pb), ts);
+ " bytes, pts %" PRIu64 "dts %" PRIu64 "\n",
+ avio_tell(pb), pkt->pts, pkt->dts);
end_ebml_master(pb, mkv->cluster);
mkv->cluster_pos = 0;
if (mkv->dyn_bc)
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) {
ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt);
- mkv->cur_audio_pkt.size = 0;
+ av_free_packet(&mkv->cur_audio_pkt);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Could not write cached audio packet ret:%d\n", ret);
return ret;
// buffer an audio packet to ensure the packet containing the video
// keyframe's timecode is contained in the same cluster for WebM
- if (codec->codec_type == AVMEDIA_TYPE_AUDIO)
- ret = mkv_copy_packet(mkv, pkt);
- else
+ if (codec_type == AVMEDIA_TYPE_AUDIO) {
+ mkv->cur_audio_pkt = *pkt;
+ if (pkt->buf) {
+ mkv->cur_audio_pkt.buf = av_buffer_ref(pkt->buf);
+ ret = mkv->cur_audio_pkt.buf ? 0 : AVERROR(ENOMEM);
+ } else
+ ret = av_dup_packet(&mkv->cur_audio_pkt);
+ } else
ret = mkv_write_packet_internal(s, pkt);
return ret;
}
static int mkv_write_trailer(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- ByteIOContext *pb = s->pb;
- int64_t currentpos, second_seekhead, cuespos;
+ AVIOContext *pb = s->pb;
+ int64_t currentpos, cuespos;
int ret;
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) {
ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt);
- mkv->cur_audio_pkt.size = 0;
+ av_free_packet(&mkv->cur_audio_pkt);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Could not write cached audio packet ret:%d\n", ret);
return ret;
end_ebml_master(pb, mkv->cluster);
}
- if (!url_is_streamed(pb)) {
- cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
- second_seekhead = mkv_write_seekhead(pb, mkv->cluster_seekhead);
+ if (pb->seekable) {
+ if (mkv->cues->num_entries) {
+ if (mkv->reserve_cues_space) {
+ int64_t cues_end;
+
+ currentpos = avio_tell(pb);
+ avio_seek(pb, mkv->cues_pos, SEEK_SET);
+
+ cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
+ cues_end = avio_tell(pb);
+ if (cues_end > cuespos + mkv->reserve_cues_space) {
+ av_log(s, AV_LOG_ERROR, "Insufficient space reserved for cues: %d "
+ "(needed: %"PRId64").\n", mkv->reserve_cues_space,
+ cues_end - cuespos);
+ return AVERROR(EINVAL);
+ }
+
+ if (cues_end < cuespos + mkv->reserve_cues_space)
+ put_ebml_void(pb, mkv->reserve_cues_space - (cues_end - cuespos));
- ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES , cuespos);
- if (ret < 0) return ret;
- if (second_seekhead >= 0) {
- ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_SEEKHEAD, second_seekhead);
+ avio_seek(pb, currentpos, SEEK_SET);
+ } else {
+ cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
+ }
+
+ ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES, cuespos);
if (ret < 0) return ret;
}
+
mkv_write_seekhead(pb, mkv->main_seekhead);
// update the duration
av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration);
- currentpos = url_ftell(pb);
- url_fseek(pb, mkv->duration_offset, SEEK_SET);
+ currentpos = avio_tell(pb);
+ avio_seek(pb, mkv->duration_offset, SEEK_SET);
put_ebml_float(pb, MATROSKA_ID_DURATION, mkv->duration);
- // write the md5sum of some frames as the segment UID
- if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
- uint8_t segment_uid[16];
- av_md5_final(mkv->md5_ctx, segment_uid);
- url_fseek(pb, mkv->segment_uid, SEEK_SET);
- put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
- }
- url_fseek(pb, currentpos, SEEK_SET);
+ avio_seek(pb, currentpos, SEEK_SET);
}
end_ebml_master(pb, mkv->segment);
- av_free(mkv->md5_ctx);
av_free(mkv->tracks);
- av_destruct_packet(&mkv->cur_audio_pkt);
- put_flush_packet(pb);
+ av_freep(&mkv->cues->entries);
+ av_freep(&mkv->cues);
+
+ return 0;
+}
+
+static int mkv_query_codec(enum AVCodecID codec_id, int std_compliance)
+{
+ int i;
+ for (i = 0; ff_mkv_codec_tags[i].id != AV_CODEC_ID_NONE; i++)
+ if (ff_mkv_codec_tags[i].id == codec_id)
+ return 1;
+
+ if (std_compliance < FF_COMPLIANCE_NORMAL) { // mkv theoretically supports any
+ enum AVMediaType type = avcodec_get_type(codec_id); // video/audio through VFW/ACM
+ if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)
+ return 1;
+ }
+
return 0;
}
-AVOutputFormat matroska_muxer = {
- "matroska",
- NULL_IF_CONFIG_SMALL("Matroska file format"),
- "video/x-matroska",
- "mkv",
- sizeof(MatroskaMuxContext),
- CODEC_ID_MP2,
- CODEC_ID_MPEG4,
- mkv_write_header,
- mkv_write_packet,
- mkv_write_trailer,
- .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
- .codec_tag = (const AVCodecTag* const []){ff_codec_bmp_tags, ff_codec_wav_tags, 0},
- .subtitle_codec = CODEC_ID_TEXT,
+#define OFFSET(x) offsetof(MatroskaMuxContext, x)
+#define FLAGS AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "reserve_index_space", "Reserve a given amount of space (in bytes) at the beginning "
+ "of the file for the index (cues).", OFFSET(reserve_cues_space), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
+ { NULL },
+};
+
+#if CONFIG_MATROSKA_MUXER
+static const AVClass matroska_class = {
+ .class_name = "matroska muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_matroska_muxer = {
+ .name = "matroska",
+ .long_name = NULL_IF_CONFIG_SMALL("Matroska"),
+ .mime_type = "video/x-matroska",
+ .extensions = "mkv",
+ .priv_data_size = sizeof(MatroskaMuxContext),
+ .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
+ AV_CODEC_ID_VORBIS : AV_CODEC_ID_AC3,
+ .video_codec = CONFIG_LIBX264_ENCODER ?
+ AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
+ .write_header = mkv_write_header,
+ .write_packet = mkv_write_packet,
+ .write_trailer = mkv_write_trailer,
+ .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
+ AVFMT_TS_NONSTRICT,
+ .codec_tag = (const AVCodecTag* const []){
+ ff_codec_bmp_tags, ff_codec_wav_tags, 0
+ },
+ .subtitle_codec = AV_CODEC_ID_SSA,
+ .query_codec = mkv_query_codec,
+ .priv_class = &matroska_class,
+};
+#endif
+
+#if CONFIG_WEBM_MUXER
+static const AVClass webm_class = {
+ .class_name = "webm muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
};
-AVOutputFormat matroska_audio_muxer = {
- "matroska",
- NULL_IF_CONFIG_SMALL("Matroska file format"),
- "audio/x-matroska",
- "mka",
- sizeof(MatroskaMuxContext),
- CODEC_ID_MP2,
- CODEC_ID_NONE,
- mkv_write_header,
- mkv_write_packet,
- mkv_write_trailer,
- .flags = AVFMT_GLOBALHEADER,
- .codec_tag = (const AVCodecTag* const []){ff_codec_wav_tags, 0},
+AVOutputFormat ff_webm_muxer = {
+ .name = "webm",
+ .long_name = NULL_IF_CONFIG_SMALL("WebM"),
+ .mime_type = "video/webm",
+ .extensions = "webm",
+ .priv_data_size = sizeof(MatroskaMuxContext),
+ .audio_codec = AV_CODEC_ID_VORBIS,
+ .video_codec = AV_CODEC_ID_VP8,
+ .write_header = mkv_write_header,
+ .write_packet = mkv_write_packet,
+ .write_trailer = mkv_write_trailer,
+ .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
+ AVFMT_TS_NONSTRICT,
+ .priv_class = &webm_class,
+};
+#endif
+
+#if CONFIG_MATROSKA_AUDIO_MUXER
+static const AVClass mka_class = {
+ .class_name = "matroska audio muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+AVOutputFormat ff_matroska_audio_muxer = {
+ .name = "matroska",
+ .long_name = NULL_IF_CONFIG_SMALL("Matroska"),
+ .mime_type = "audio/x-matroska",
+ .extensions = "mka",
+ .priv_data_size = sizeof(MatroskaMuxContext),
+ .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
+ AV_CODEC_ID_VORBIS : AV_CODEC_ID_AC3,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = mkv_write_header,
+ .write_packet = mkv_write_packet,
+ .write_trailer = mkv_write_trailer,
+ .flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT,
+ .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
+ .priv_class = &mka_class,
};
+#endif
projects / ffmpeg / blobdiff