2013-10-02 14:26:38 +00:00
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/*
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* Copyright (C) 2005 Michael Ahlberg, Måns Rullgård
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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2005-04-09 15:32:58 +00:00
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#include <stdlib.h>
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2013-10-02 14:26:38 +00:00
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2008-05-09 11:56:36 +00:00
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#include "libavutil/avstring.h"
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2013-07-09 05:39:10 +00:00
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|
#include "libavutil/base64.h"
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2008-05-09 11:56:36 +00:00
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|
#include "libavutil/bswap.h"
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2011-05-22 10:46:29 +00:00
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#include "libavutil/dict.h"
|
2016-04-23 14:44:11 +00:00
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|
|
2008-05-09 11:56:36 +00:00
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#include "libavcodec/bytestream.h"
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2014-10-29 15:35:26 +00:00
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|
#include "libavcodec/vorbis_parser.h"
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2016-04-23 14:44:11 +00:00
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|
2005-04-09 15:32:58 +00:00
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#include "avformat.h"
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2013-10-13 07:34:51 +00:00
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#include "flac_picture.h"
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2011-02-06 14:38:55 +00:00
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#include "internal.h"
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2007-11-07 20:22:32 +00:00
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#include "oggdec.h"
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2010-10-16 08:50:50 +00:00
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#include "vorbiscomment.h"
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2014-04-04 09:50:46 +00:00
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#include "replaygain.h"
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2005-04-09 15:32:58 +00:00
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2021-08-23 09:24:20 +00:00
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static int ogm_chapter(AVFormatContext *as, const uint8_t *key, const uint8_t *val)
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2010-03-12 05:16:57 +00:00
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|
{
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int i, cnum, h, m, s, ms, keylen = strlen(key);
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AVChapter *chapter = NULL;
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2019-04-14 15:22:25 +00:00
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if (keylen < 9 || av_strncasecmp(key, "CHAPTER", 7) || sscanf(key+7, "%03d", &cnum) != 1)
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2010-03-12 05:16:57 +00:00
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return 0;
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|
2013-07-13 09:09:38 +00:00
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if (keylen <= 10) {
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2010-03-12 05:16:57 +00:00
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if (sscanf(val, "%02d:%02d:%02d.%03d", &h, &m, &s, &ms) < 4)
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return 0;
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2013-10-02 14:26:38 +00:00
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avpriv_new_chapter(as, cnum, (AVRational) { 1, 1000 },
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ms + 1000 * (s + 60 * (m + 60 * h)),
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AV_NOPTS_VALUE, NULL);
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2019-04-14 15:22:25 +00:00
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} else if (!av_strcasecmp(key + keylen - 4, "NAME")) {
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2013-10-02 14:26:38 +00:00
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for (i = 0; i < as->nb_chapters; i++)
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2010-03-12 05:16:57 +00:00
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if (as->chapters[i]->id == cnum) {
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chapter = as->chapters[i];
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break;
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}
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|
if (!chapter)
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return 0;
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|
2021-08-23 09:24:20 +00:00
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av_dict_set(&chapter->metadata, "title", val, 0);
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2010-03-12 05:16:57 +00:00
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} else
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return 0;
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return 1;
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}
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|
2014-08-12 21:03:55 +00:00
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int ff_vorbis_stream_comment(AVFormatContext *as, AVStream *st,
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|
|
const uint8_t *buf, int size)
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|
|
{
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int updates = ff_vorbis_comment(as, &st->metadata, buf, size, 1);
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if (updates > 0) {
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st->event_flags |= AVSTREAM_EVENT_FLAG_METADATA_UPDATED;
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}
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return updates;
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}
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|
2021-08-23 09:24:20 +00:00
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/**
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* This function temporarily modifies the (const qualified) input buffer
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* and reverts its changes before return. The input buffer needs to have
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* at least one byte of padding.
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*/
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2021-08-23 08:03:47 +00:00
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static int vorbis_parse_single_comment(AVFormatContext *as, AVDictionary **m,
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const uint8_t *buf, uint32_t size,
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int *updates, int parse_picture)
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{
|
2021-08-23 09:24:20 +00:00
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char *t = (char*)buf, *v = memchr(t, '=', size);
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2021-08-23 08:03:47 +00:00
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int tl, vl;
|
2021-08-23 09:24:20 +00:00
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char backup;
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2021-08-23 08:03:47 +00:00
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if (!v)
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return 0;
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tl = v - t;
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vl = size - tl - 1;
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v++;
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if (!tl || !vl)
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return 0;
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|
2021-08-23 09:24:20 +00:00
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t[tl] = 0;
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2021-08-23 08:03:47 +00:00
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2021-08-23 09:24:20 +00:00
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backup = v[vl];
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v[vl] = 0;
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2021-08-23 08:03:47 +00:00
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/* The format in which the pictures are stored is the FLAC format.
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* Xiph says: "The binary FLAC picture structure is base64 encoded
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* and placed within a VorbisComment with the tag name
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* 'METADATA_BLOCK_PICTURE'. This is the preferred and
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* recommended way of embedding cover art within VorbisComments."
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*/
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2021-08-23 09:24:20 +00:00
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if (!av_strcasecmp(t, "METADATA_BLOCK_PICTURE") && parse_picture) {
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2021-08-23 08:03:47 +00:00
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int ret, len = AV_BASE64_DECODE_SIZE(vl);
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2021-08-23 11:37:04 +00:00
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uint8_t *pict = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE);
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2021-08-23 08:03:47 +00:00
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if (!pict) {
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av_log(as, AV_LOG_WARNING, "out-of-memory error. Skipping cover art block.\n");
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2021-08-23 09:24:20 +00:00
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goto end;
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2021-08-23 08:03:47 +00:00
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}
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2021-08-23 09:24:20 +00:00
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ret = av_base64_decode(pict, v, len);
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2021-08-23 08:03:47 +00:00
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if (ret > 0)
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2021-08-23 11:37:04 +00:00
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ret = ff_flac_parse_picture(as, &pict, ret, 0);
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2021-08-23 08:03:47 +00:00
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av_freep(&pict);
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if (ret < 0) {
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av_log(as, AV_LOG_WARNING, "Failed to parse cover art block.\n");
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2021-08-23 09:24:20 +00:00
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goto end;
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2021-08-23 08:03:47 +00:00
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}
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2021-08-23 09:24:20 +00:00
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} else if (!ogm_chapter(as, t, v)) {
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2021-08-23 08:03:47 +00:00
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(*updates)++;
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2021-08-23 09:24:20 +00:00
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if (av_dict_get(*m, t, NULL, 0))
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av_dict_set(m, t, ";", AV_DICT_APPEND);
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av_dict_set(m, t, v, AV_DICT_APPEND);
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2021-08-23 08:03:47 +00:00
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}
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2021-08-23 09:24:20 +00:00
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end:
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t[tl] = '=';
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v[vl] = backup;
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2021-08-23 08:03:47 +00:00
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return 0;
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}
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2013-10-02 14:26:38 +00:00
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int ff_vorbis_comment(AVFormatContext *as, AVDictionary **m,
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2014-05-26 10:48:56 +00:00
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const uint8_t *buf, int size,
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int parse_picture)
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2005-04-09 15:32:58 +00:00
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{
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2013-10-02 14:26:38 +00:00
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const uint8_t *p = buf;
|
2008-02-01 15:17:32 +00:00
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const uint8_t *end = buf + size;
|
2014-08-12 21:03:55 +00:00
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int updates = 0;
|
2019-04-14 15:22:25 +00:00
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unsigned n;
|
2021-08-23 08:03:47 +00:00
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int s, ret;
|
2005-04-09 15:32:58 +00:00
|
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2013-10-02 14:26:38 +00:00
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/* must have vendor_length and user_comment_list_length */
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if (size < 8)
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2013-10-05 20:10:01 +00:00
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return AVERROR_INVALIDDATA;
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2005-04-09 15:32:58 +00:00
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|
2007-10-13 11:42:06 +00:00
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s = bytestream_get_le32(&p);
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2005-04-09 15:32:58 +00:00
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|
2009-09-24 15:37:09 +00:00
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if (end - p - 4 < s || s < 0)
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2013-10-05 20:10:01 +00:00
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return AVERROR_INVALIDDATA;
|
2005-04-09 15:32:58 +00:00
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p += s;
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|
2007-10-13 11:42:06 +00:00
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n = bytestream_get_le32(&p);
|
2005-04-09 15:32:58 +00:00
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2009-09-24 15:37:09 +00:00
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while (end - p >= 4 && n > 0) {
|
2007-10-13 11:42:06 +00:00
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s = bytestream_get_le32(&p);
|
2005-04-09 15:32:58 +00:00
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2009-09-24 15:37:09 +00:00
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if (end - p < s || s < 0)
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2005-04-09 15:32:58 +00:00
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break;
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|
2021-08-23 08:03:47 +00:00
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ret = vorbis_parse_single_comment(as, m, p, s, &updates, parse_picture);
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if (ret < 0)
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return ret;
|
2005-04-09 15:32:58 +00:00
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p += s;
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n--;
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}
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|
2007-10-13 11:43:03 +00:00
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if (p != end)
|
2013-10-02 14:26:38 +00:00
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av_log(as, AV_LOG_INFO,
|
2014-04-24 16:01:30 +00:00
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"%"PTRDIFF_SPECIFIER" bytes of comment header remain\n", end - p);
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2005-04-09 15:32:58 +00:00
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if (n > 0)
|
2007-06-24 12:20:17 +00:00
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av_log(as, AV_LOG_INFO,
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"truncated comment header, %i comments not found\n", n);
|
2005-04-09 15:32:58 +00:00
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2010-10-16 13:20:41 +00:00
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ff_metadata_conv(m, NULL, ff_vorbiscomment_metadata_conv);
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2010-10-15 19:04:25 +00:00
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2014-08-12 21:03:55 +00:00
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return updates;
|
2005-04-09 15:32:58 +00:00
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}
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2013-10-02 14:26:38 +00:00
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/*
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* Parse the vorbis header
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*
|
2005-04-09 15:32:58 +00:00
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* Vorbis Identification header from Vorbis_I_spec.html#vorbis-spec-codec
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* [vorbis_version] = read 32 bits as unsigned integer | Not used
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* [audio_channels] = read 8 bit integer as unsigned | Used
|
2005-12-17 18:14:38 +00:00
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* [audio_sample_rate] = read 32 bits as unsigned integer | Used
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2005-04-09 15:32:58 +00:00
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* [bitrate_maximum] = read 32 bits as signed integer | Not used yet
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* [bitrate_nominal] = read 32 bits as signed integer | Not used yet
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* [bitrate_minimum] = read 32 bits as signed integer | Used as bitrate
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* [blocksize_0] = read 4 bits as unsigned integer | Not Used
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* [blocksize_1] = read 4 bits as unsigned integer | Not Used
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* [framing_flag] = read one bit | Not Used
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2013-10-02 14:26:38 +00:00
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*/
|
2005-04-09 15:32:58 +00:00
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|
2008-11-06 01:50:56 +00:00
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struct oggvorbis_private {
|
2005-05-13 18:10:23 +00:00
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unsigned int len[3];
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unsigned char *packet[3];
|
2014-10-29 15:35:26 +00:00
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AVVorbisParseContext *vp;
|
2012-02-24 02:40:14 +00:00
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int64_t final_pts;
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int final_duration;
|
2008-11-06 01:50:56 +00:00
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};
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2005-05-13 18:10:23 +00:00
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2013-10-05 19:35:31 +00:00
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static int fixup_vorbis_headers(AVFormatContext *as,
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struct oggvorbis_private *priv,
|
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uint8_t **buf)
|
2005-05-13 18:10:23 +00:00
|
|
|
{
|
2013-09-18 16:12:36 +00:00
|
|
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int i, offset, len, err;
|
2013-09-19 09:01:26 +00:00
|
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|
int buf_len;
|
2005-05-13 18:10:23 +00:00
|
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unsigned char *ptr;
|
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|
|
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len = priv->len[0] + priv->len[1] + priv->len[2];
|
2013-10-04 10:01:17 +00:00
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buf_len = len + len / 255 + 64;
|
2018-03-06 17:14:12 +00:00
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|
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|
|
|
if (*buf)
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|
return AVERROR_INVALIDDATA;
|
|
|
|
|
2013-01-10 18:24:01 +00:00
|
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ptr = *buf = av_realloc(NULL, buf_len);
|
2013-10-05 19:35:31 +00:00
|
|
|
if (!ptr)
|
|
|
|
return AVERROR(ENOMEM);
|
2013-01-10 18:24:01 +00:00
|
|
|
memset(*buf, '\0', buf_len);
|
2005-05-13 18:10:23 +00:00
|
|
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|
2013-10-02 14:26:38 +00:00
|
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|
ptr[0] = 2;
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|
|
offset = 1;
|
2005-05-13 18:10:23 +00:00
|
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|
offset += av_xiphlacing(&ptr[offset], priv->len[0]);
|
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|
|
offset += av_xiphlacing(&ptr[offset], priv->len[1]);
|
2007-06-24 12:20:17 +00:00
|
|
|
for (i = 0; i < 3; i++) {
|
2005-05-13 18:10:23 +00:00
|
|
|
memcpy(&ptr[offset], priv->packet[i], priv->len[i]);
|
|
|
|
offset += priv->len[i];
|
2010-03-11 07:17:49 +00:00
|
|
|
av_freep(&priv->packet[i]);
|
2005-05-13 18:10:23 +00:00
|
|
|
}
|
2015-06-29 21:48:34 +00:00
|
|
|
if ((err = av_reallocp(buf, offset + AV_INPUT_BUFFER_PADDING_SIZE)) < 0)
|
2013-09-18 16:12:36 +00:00
|
|
|
return err;
|
2005-05-13 18:10:23 +00:00
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
2013-01-07 13:14:41 +00:00
|
|
|
static void vorbis_cleanup(AVFormatContext *s, int idx)
|
2013-01-04 15:05:51 +00:00
|
|
|
{
|
|
|
|
struct ogg *ogg = s->priv_data;
|
|
|
|
struct ogg_stream *os = ogg->streams + idx;
|
|
|
|
struct oggvorbis_private *priv = os->private;
|
|
|
|
int i;
|
2014-10-29 15:35:26 +00:00
|
|
|
if (os->private) {
|
|
|
|
av_vorbis_parse_free(&priv->vp);
|
2013-01-04 15:05:51 +00:00
|
|
|
for (i = 0; i < 3; i++)
|
|
|
|
av_freep(&priv->packet[i]);
|
2014-10-29 15:35:26 +00:00
|
|
|
}
|
2013-01-04 15:05:51 +00:00
|
|
|
}
|
2005-05-13 18:10:23 +00:00
|
|
|
|
2014-02-05 17:10:56 +00:00
|
|
|
static int vorbis_update_metadata(AVFormatContext *s, int idx)
|
|
|
|
{
|
|
|
|
struct ogg *ogg = s->priv_data;
|
|
|
|
struct ogg_stream *os = ogg->streams + idx;
|
|
|
|
AVStream *st = s->streams[idx];
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (os->psize <= 8)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* New metadata packet; release old data. */
|
|
|
|
av_dict_free(&st->metadata);
|
2014-08-13 22:04:42 +00:00
|
|
|
ret = ff_vorbis_stream_comment(s, st, os->buf + os->pstart + 7,
|
|
|
|
os->psize - 8);
|
2014-02-05 17:10:56 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
/* Update the metadata if possible. */
|
|
|
|
av_freep(&os->new_metadata);
|
|
|
|
if (st->metadata) {
|
|
|
|
os->new_metadata = av_packet_pack_dictionary(st->metadata, &os->new_metadata_size);
|
|
|
|
/* Send an empty dictionary to indicate that metadata has been cleared. */
|
|
|
|
} else {
|
2020-05-23 11:06:04 +00:00
|
|
|
os->new_metadata = av_mallocz(1);
|
2014-02-05 17:10:56 +00:00
|
|
|
os->new_metadata_size = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-10-02 14:26:38 +00:00
|
|
|
static int vorbis_header(AVFormatContext *s, int idx)
|
2005-04-09 15:32:58 +00:00
|
|
|
{
|
2008-11-06 01:50:56 +00:00
|
|
|
struct ogg *ogg = s->priv_data;
|
2013-10-02 14:26:38 +00:00
|
|
|
AVStream *st = s->streams[idx];
|
2008-11-06 01:50:56 +00:00
|
|
|
struct ogg_stream *os = ogg->streams + idx;
|
|
|
|
struct oggvorbis_private *priv;
|
2010-03-11 07:17:46 +00:00
|
|
|
int pkt_type = os->buf[os->pstart];
|
2005-04-09 15:32:58 +00:00
|
|
|
|
2010-03-11 07:17:46 +00:00
|
|
|
if (!os->private) {
|
2008-11-06 01:50:56 +00:00
|
|
|
os->private = av_mallocz(sizeof(struct oggvorbis_private));
|
2007-06-24 12:20:17 +00:00
|
|
|
if (!os->private)
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR(ENOMEM);
|
2005-05-13 18:10:23 +00:00
|
|
|
}
|
2005-04-09 15:32:58 +00:00
|
|
|
|
2014-11-06 11:58:04 +00:00
|
|
|
priv = os->private;
|
|
|
|
|
2013-08-13 05:28:41 +00:00
|
|
|
if (!(pkt_type & 1))
|
2014-11-06 11:58:04 +00:00
|
|
|
return priv->vp ? 0 : AVERROR_INVALIDDATA;
|
2013-08-13 05:28:41 +00:00
|
|
|
|
2010-03-11 07:17:46 +00:00
|
|
|
if (os->psize < 1 || pkt_type > 5)
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2007-10-10 22:59:31 +00:00
|
|
|
|
2013-10-02 14:26:38 +00:00
|
|
|
if (priv->packet[pkt_type >> 1])
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2010-08-07 21:30:34 +00:00
|
|
|
if (pkt_type > 1 && !priv->packet[0] || pkt_type > 3 && !priv->packet[1])
|
2017-11-28 21:40:20 +00:00
|
|
|
return priv->vp ? 0 : AVERROR_INVALIDDATA;
|
2010-08-07 21:30:34 +00:00
|
|
|
|
2013-10-02 14:26:38 +00:00
|
|
|
priv->len[pkt_type >> 1] = os->psize;
|
2021-11-27 09:50:47 +00:00
|
|
|
priv->packet[pkt_type >> 1] = av_memdup(os->buf + os->pstart, os->psize);
|
2012-05-06 10:00:19 +00:00
|
|
|
if (!priv->packet[pkt_type >> 1])
|
|
|
|
return AVERROR(ENOMEM);
|
2005-04-09 15:32:58 +00:00
|
|
|
if (os->buf[os->pstart] == 1) {
|
2008-02-01 15:17:32 +00:00
|
|
|
const uint8_t *p = os->buf + os->pstart + 7; /* skip "\001vorbis" tag */
|
2007-10-10 22:59:36 +00:00
|
|
|
unsigned blocksize, bs0, bs1;
|
2011-01-28 23:52:50 +00:00
|
|
|
int srate;
|
2012-12-17 19:51:07 +00:00
|
|
|
int channels;
|
2007-10-10 22:59:31 +00:00
|
|
|
|
|
|
|
if (os->psize != 30)
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2007-10-10 22:59:31 +00:00
|
|
|
|
2007-10-10 22:59:36 +00:00
|
|
|
if (bytestream_get_le32(&p) != 0) /* vorbis_version */
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2007-10-10 22:59:36 +00:00
|
|
|
|
2013-10-04 10:01:17 +00:00
|
|
|
channels = bytestream_get_byte(&p);
|
2016-04-10 19:58:15 +00:00
|
|
|
if (st->codecpar->channels && channels != st->codecpar->channels) {
|
2012-12-17 19:51:07 +00:00
|
|
|
av_log(s, AV_LOG_ERROR, "Channel change is not supported\n");
|
|
|
|
return AVERROR_PATCHWELCOME;
|
|
|
|
}
|
2016-04-10 19:58:15 +00:00
|
|
|
st->codecpar->channels = channels;
|
2013-10-02 14:26:38 +00:00
|
|
|
srate = bytestream_get_le32(&p);
|
2007-10-10 22:59:34 +00:00
|
|
|
p += 4; // skip maximum bitrate
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
st->codecpar->bit_rate = bytestream_get_le32(&p); // nominal bitrate
|
2007-10-10 22:59:36 +00:00
|
|
|
p += 4; // skip minimum bitrate
|
|
|
|
|
|
|
|
blocksize = bytestream_get_byte(&p);
|
2013-10-02 14:26:38 +00:00
|
|
|
bs0 = blocksize & 15;
|
|
|
|
bs1 = blocksize >> 4;
|
2007-10-10 22:59:36 +00:00
|
|
|
|
|
|
|
if (bs0 > bs1)
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2007-10-10 22:59:36 +00:00
|
|
|
if (bs0 < 6 || bs1 > 13)
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2007-10-10 22:59:36 +00:00
|
|
|
|
|
|
|
if (bytestream_get_byte(&p) != 1) /* framing_flag */
|
2013-10-05 20:10:01 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2005-04-09 15:32:58 +00:00
|
|
|
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
|
|
st->codecpar->codec_id = AV_CODEC_ID_VORBIS;
|
2005-04-09 15:32:58 +00:00
|
|
|
|
2011-01-28 23:52:50 +00:00
|
|
|
if (srate > 0) {
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
st->codecpar->sample_rate = srate;
|
2011-11-29 18:28:15 +00:00
|
|
|
avpriv_set_pts_info(st, 64, 1, srate);
|
2011-01-28 23:52:50 +00:00
|
|
|
}
|
2005-04-09 15:32:58 +00:00
|
|
|
} else if (os->buf[os->pstart] == 3) {
|
2014-03-02 04:02:15 +00:00
|
|
|
if (vorbis_update_metadata(s, idx) >= 0 && priv->len[1] > 10) {
|
2014-04-04 09:50:46 +00:00
|
|
|
unsigned new_len;
|
|
|
|
|
|
|
|
int ret = ff_replaygain_export(st, st->metadata);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2011-01-31 19:16:38 +00:00
|
|
|
// drop all metadata we parsed and which is not required by libvorbis
|
2014-04-04 09:50:46 +00:00
|
|
|
new_len = 7 + 4 + AV_RL32(priv->packet[1] + 7) + 4 + 1;
|
2011-01-31 19:16:38 +00:00
|
|
|
if (new_len >= 16 && new_len < os->psize) {
|
|
|
|
AV_WL32(priv->packet[1] + new_len - 5, 0);
|
|
|
|
priv->packet[1][new_len - 1] = 1;
|
2013-10-02 14:26:38 +00:00
|
|
|
priv->len[1] = new_len;
|
2011-01-31 19:16:38 +00:00
|
|
|
}
|
|
|
|
}
|
2005-05-13 18:10:23 +00:00
|
|
|
} else {
|
2020-04-19 15:05:52 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (priv->vp)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
|
|
|
ret = fixup_vorbis_headers(s, priv, &st->codecpar->extradata);
|
2013-09-26 13:37:02 +00:00
|
|
|
if (ret < 0) {
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
st->codecpar->extradata_size = 0;
|
2013-09-26 13:37:02 +00:00
|
|
|
return ret;
|
|
|
|
}
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
st->codecpar->extradata_size = ret;
|
2014-10-29 15:35:26 +00:00
|
|
|
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
priv->vp = av_vorbis_parse_init(st->codecpar->extradata, st->codecpar->extradata_size);
|
2014-10-29 15:35:26 +00:00
|
|
|
if (!priv->vp) {
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
av_freep(&st->codecpar->extradata);
|
|
|
|
st->codecpar->extradata_size = 0;
|
2014-11-06 12:01:06 +00:00
|
|
|
return AVERROR_UNKNOWN;
|
2012-02-24 02:40:14 +00:00
|
|
|
}
|
2005-04-09 15:32:58 +00:00
|
|
|
}
|
|
|
|
|
2010-03-11 07:17:46 +00:00
|
|
|
return 1;
|
2005-04-09 15:32:58 +00:00
|
|
|
}
|
|
|
|
|
2012-02-24 02:40:14 +00:00
|
|
|
static int vorbis_packet(AVFormatContext *s, int idx)
|
|
|
|
{
|
|
|
|
struct ogg *ogg = s->priv_data;
|
|
|
|
struct ogg_stream *os = ogg->streams + idx;
|
|
|
|
struct oggvorbis_private *priv = os->private;
|
2014-02-05 17:10:56 +00:00
|
|
|
int duration, flags = 0;
|
2012-02-24 02:40:14 +00:00
|
|
|
|
2015-09-10 12:11:43 +00:00
|
|
|
if (!priv->vp)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
2012-02-24 02:40:14 +00:00
|
|
|
/* first packet handling
|
2013-10-02 14:26:38 +00:00
|
|
|
* here we parse the duration of each packet in the first page and compare
|
|
|
|
* the total duration to the page granule to find the encoder delay and
|
|
|
|
* set the first timestamp */
|
2014-03-05 16:07:28 +00:00
|
|
|
if ((!os->lastpts || os->lastpts == AV_NOPTS_VALUE) && !(os->flags & OGG_FLAG_EOS) && (int64_t)os->granule>=0) {
|
2012-05-04 20:37:51 +00:00
|
|
|
int seg, d;
|
2013-10-02 14:26:38 +00:00
|
|
|
uint8_t *last_pkt = os->buf + os->pstart;
|
|
|
|
uint8_t *next_pkt = last_pkt;
|
2012-02-24 02:40:14 +00:00
|
|
|
|
2014-10-29 15:35:26 +00:00
|
|
|
av_vorbis_parse_reset(priv->vp);
|
2012-02-24 02:40:14 +00:00
|
|
|
duration = 0;
|
2012-05-04 20:37:51 +00:00
|
|
|
seg = os->segp;
|
2014-11-06 11:05:17 +00:00
|
|
|
d = av_vorbis_parse_frame_flags(priv->vp, last_pkt, 1, &flags);
|
2012-05-04 20:37:51 +00:00
|
|
|
if (d < 0) {
|
|
|
|
os->pflags |= AV_PKT_FLAG_CORRUPT;
|
|
|
|
return 0;
|
2014-02-05 17:10:56 +00:00
|
|
|
} else if (flags & VORBIS_FLAG_COMMENT) {
|
|
|
|
vorbis_update_metadata(s, idx);
|
|
|
|
flags = 0;
|
2012-05-04 20:37:51 +00:00
|
|
|
}
|
|
|
|
duration += d;
|
|
|
|
last_pkt = next_pkt = next_pkt + os->psize;
|
|
|
|
for (; seg < os->nsegs; seg++) {
|
2012-02-24 02:40:14 +00:00
|
|
|
if (os->segments[seg] < 255) {
|
2014-11-06 11:05:17 +00:00
|
|
|
int d = av_vorbis_parse_frame_flags(priv->vp, last_pkt, 1, &flags);
|
2012-02-24 02:40:14 +00:00
|
|
|
if (d < 0) {
|
|
|
|
duration = os->granule;
|
|
|
|
break;
|
2014-02-05 17:10:56 +00:00
|
|
|
} else if (flags & VORBIS_FLAG_COMMENT) {
|
|
|
|
vorbis_update_metadata(s, idx);
|
|
|
|
flags = 0;
|
2012-02-24 02:40:14 +00:00
|
|
|
}
|
|
|
|
duration += d;
|
2013-10-02 14:26:38 +00:00
|
|
|
last_pkt = next_pkt + os->segments[seg];
|
2012-02-24 02:40:14 +00:00
|
|
|
}
|
|
|
|
next_pkt += os->segments[seg];
|
|
|
|
}
|
2013-10-02 14:26:38 +00:00
|
|
|
os->lastpts =
|
|
|
|
os->lastdts = os->granule - duration;
|
2014-06-11 16:03:45 +00:00
|
|
|
|
|
|
|
if (!os->granule && duration) //hack to deal with broken files (Ticket3710)
|
|
|
|
os->lastpts = os->lastdts = AV_NOPTS_VALUE;
|
|
|
|
|
2013-10-04 10:01:17 +00:00
|
|
|
if (s->streams[idx]->start_time == AV_NOPTS_VALUE) {
|
2012-05-05 08:48:08 +00:00
|
|
|
s->streams[idx]->start_time = FFMAX(os->lastpts, 0);
|
2014-02-15 22:25:33 +00:00
|
|
|
if (s->streams[idx]->duration != AV_NOPTS_VALUE)
|
2012-05-04 20:45:57 +00:00
|
|
|
s->streams[idx]->duration -= s->streams[idx]->start_time;
|
|
|
|
}
|
2013-10-02 14:26:38 +00:00
|
|
|
priv->final_pts = AV_NOPTS_VALUE;
|
2014-10-29 15:35:26 +00:00
|
|
|
av_vorbis_parse_reset(priv->vp);
|
2012-02-24 02:40:14 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* parse packet duration */
|
|
|
|
if (os->psize > 0) {
|
2014-11-06 11:05:17 +00:00
|
|
|
duration = av_vorbis_parse_frame_flags(priv->vp, os->buf + os->pstart, 1, &flags);
|
2012-05-04 20:37:51 +00:00
|
|
|
if (duration < 0) {
|
2012-02-24 02:40:14 +00:00
|
|
|
os->pflags |= AV_PKT_FLAG_CORRUPT;
|
|
|
|
return 0;
|
2014-02-05 17:10:56 +00:00
|
|
|
} else if (flags & VORBIS_FLAG_COMMENT) {
|
|
|
|
vorbis_update_metadata(s, idx);
|
|
|
|
flags = 0;
|
2012-02-24 02:40:14 +00:00
|
|
|
}
|
|
|
|
os->pduration = duration;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* final packet handling
|
2013-10-02 14:26:38 +00:00
|
|
|
* here we save the pts of the first packet in the final page, sum up all
|
|
|
|
* packet durations in the final page except for the last one, and compare
|
|
|
|
* to the page granule to find the duration of the final packet */
|
2012-02-24 02:40:14 +00:00
|
|
|
if (os->flags & OGG_FLAG_EOS) {
|
|
|
|
if (os->lastpts != AV_NOPTS_VALUE) {
|
2013-10-02 14:26:38 +00:00
|
|
|
priv->final_pts = os->lastpts;
|
2012-02-24 02:40:14 +00:00
|
|
|
priv->final_duration = 0;
|
|
|
|
}
|
2021-07-07 15:41:32 +00:00
|
|
|
if (os->segp == os->nsegs) {
|
|
|
|
int64_t skip = priv->final_pts + priv->final_duration + os->pduration - os->granule;
|
|
|
|
if (skip > 0)
|
|
|
|
os->end_trimming = skip;
|
2012-02-24 02:40:14 +00:00
|
|
|
os->pduration = os->granule - priv->final_pts - priv->final_duration;
|
2021-07-07 15:41:32 +00:00
|
|
|
}
|
2012-02-24 02:40:14 +00:00
|
|
|
priv->final_duration += os->pduration;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-11-06 01:50:56 +00:00
|
|
|
const struct ogg_codec ff_vorbis_codec = {
|
2013-10-02 14:26:38 +00:00
|
|
|
.magic = "\001vorbis",
|
2005-04-09 15:32:58 +00:00
|
|
|
.magicsize = 7,
|
2013-10-02 14:26:38 +00:00
|
|
|
.header = vorbis_header,
|
|
|
|
.packet = vorbis_packet,
|
|
|
|
.cleanup = vorbis_cleanup,
|
2012-09-19 23:01:43 +00:00
|
|
|
.nb_header = 3,
|
2005-04-09 15:32:58 +00:00
|
|
|
};
|