mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 17:12:36 +00:00
41243e7c4f
This gives the filename or URL to the libavformat probing logic, which might use the file extension as a "help" to decide which format the file is. This helps with mp3 files that have large id3v2 tags and prevents the idiotic ffmpeg probing logic to think that a mp3 file is amr. (What we really want is knowing whether we _really_ need to feed more data to libavformat to detect the format. And without having to pre-read excessive amounts of data for relatively normal streams.)
1177 lines
39 KiB
C
1177 lines
39 KiB
C
/*
|
|
* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of mpv.
|
|
*
|
|
* mpv 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.
|
|
*
|
|
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <limits.h>
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
#include <strings.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
|
|
#include "config.h"
|
|
|
|
#include <libavformat/avformat.h>
|
|
#include <libavformat/avio.h>
|
|
#include <libavutil/avutil.h>
|
|
#include <libavutil/avstring.h>
|
|
#include <libavutil/mathematics.h>
|
|
#include <libavutil/replaygain.h>
|
|
#include <libavutil/spherical.h>
|
|
#include <libavutil/display.h>
|
|
#include <libavutil/opt.h>
|
|
|
|
#include "common/msg.h"
|
|
#include "common/tags.h"
|
|
#include "common/av_common.h"
|
|
#include "misc/bstr.h"
|
|
#include "misc/charset_conv.h"
|
|
|
|
#include "stream/stream.h"
|
|
#include "demux.h"
|
|
#include "stheader.h"
|
|
#include "options/m_config.h"
|
|
#include "options/m_option.h"
|
|
#include "options/path.h"
|
|
|
|
|
|
#define INITIAL_PROBE_SIZE STREAM_BUFFER_SIZE
|
|
#define PROBE_BUF_SIZE FFMIN(STREAM_MAX_BUFFER_SIZE, 2 * 1024 * 1024)
|
|
|
|
|
|
// Should correspond to IO_BUFFER_SIZE in libavformat/aviobuf.c (not public)
|
|
// libavformat (almost) always reads data in blocks of this size.
|
|
#define BIO_BUFFER_SIZE 32768
|
|
|
|
#define OPT_BASE_STRUCT struct demux_lavf_opts
|
|
struct demux_lavf_opts {
|
|
int probesize;
|
|
int probeinfo;
|
|
int probescore;
|
|
float analyzeduration;
|
|
int buffersize;
|
|
int allow_mimetype;
|
|
char *format;
|
|
char **avopts;
|
|
int hacks;
|
|
int genptsmode;
|
|
char *sub_cp;
|
|
int rtsp_transport;
|
|
};
|
|
|
|
const struct m_sub_options demux_lavf_conf = {
|
|
.opts = (const m_option_t[]) {
|
|
OPT_INTRANGE("demuxer-lavf-probesize", probesize, 0, 32, INT_MAX),
|
|
OPT_CHOICE("demuxer-lavf-probe-info", probeinfo, 0,
|
|
({"no", 0}, {"yes", 1}, {"auto", -1})),
|
|
OPT_STRING("demuxer-lavf-format", format, 0),
|
|
OPT_FLOATRANGE("demuxer-lavf-analyzeduration", analyzeduration, 0,
|
|
0, 3600),
|
|
OPT_INTRANGE("demuxer-lavf-buffersize", buffersize, 0, 1,
|
|
10 * 1024 * 1024, OPTDEF_INT(BIO_BUFFER_SIZE)),
|
|
OPT_FLAG("demuxer-lavf-allow-mimetype", allow_mimetype, 0),
|
|
OPT_INTRANGE("demuxer-lavf-probescore", probescore, 0,
|
|
1, AVPROBE_SCORE_MAX),
|
|
OPT_FLAG("demuxer-lavf-hacks", hacks, 0),
|
|
OPT_CHOICE("demuxer-lavf-genpts-mode", genptsmode, 0,
|
|
({"lavf", 1}, {"no", 0})),
|
|
OPT_KEYVALUELIST("demuxer-lavf-o", avopts, 0),
|
|
OPT_STRING("sub-codepage", sub_cp, 0),
|
|
OPT_CHOICE("rtsp-transport", rtsp_transport, 0,
|
|
({"lavf", 0},
|
|
{"udp", 1},
|
|
{"tcp", 2},
|
|
{"http", 3})),
|
|
{0}
|
|
},
|
|
.size = sizeof(struct demux_lavf_opts),
|
|
.defaults = &(const struct demux_lavf_opts){
|
|
.probeinfo = -1,
|
|
.allow_mimetype = 1,
|
|
.hacks = 1,
|
|
// AVPROBE_SCORE_MAX/4 + 1 is the "recommended" limit. Below that, the
|
|
// user is supposed to retry with larger probe sizes until a higher
|
|
// value is reached.
|
|
.probescore = AVPROBE_SCORE_MAX/4 + 1,
|
|
.sub_cp = "auto",
|
|
.rtsp_transport = 2,
|
|
},
|
|
};
|
|
|
|
struct format_hack {
|
|
const char *ff_name;
|
|
const char *mime_type;
|
|
int probescore;
|
|
float analyzeduration;
|
|
bool skipinfo : 1; // skip avformat_find_stream_info()
|
|
unsigned int if_flags; // additional AVInputFormat.flags flags
|
|
bool max_probe : 1; // use probescore only if max. probe size reached
|
|
bool ignore : 1; // blacklisted
|
|
bool no_stream : 1; // do not wrap struct stream as AVIOContext
|
|
bool use_stream_ids : 1; // export the native stream IDs
|
|
bool fully_read : 1; // set demuxer.fully_read flag
|
|
bool detect_charset : 1; // format is a small text file, possibly not UTF8
|
|
bool image_format : 1; // expected to contain exactly 1 frame
|
|
// Do not confuse player's position estimation (position is into external
|
|
// segment, with e.g. HLS, player knows about the playlist main file only).
|
|
bool clear_filepos : 1;
|
|
bool ignore_start : 1;
|
|
bool fix_editlists : 1;
|
|
};
|
|
|
|
#define BLACKLIST(fmt) {fmt, .ignore = true}
|
|
#define TEXTSUB(fmt) {fmt, .fully_read = true, .detect_charset = true}
|
|
#define TEXTSUB_UTF8(fmt) {fmt, .fully_read = true}
|
|
|
|
static const struct format_hack format_hacks[] = {
|
|
// for webradios
|
|
{"aac", "audio/aacp", 25, 0.5},
|
|
{"aac", "audio/aac", 25, 0.5},
|
|
|
|
// some mp3 files don't detect correctly (usually id3v2 too large)
|
|
{"mp3", "audio/mpeg", 24, 0.5},
|
|
{"mp3", NULL, 24, .max_probe = true},
|
|
|
|
{"hls", .no_stream = true, .clear_filepos = true},
|
|
{"mpeg", .use_stream_ids = true},
|
|
{"mpegts", .use_stream_ids = true},
|
|
|
|
{"mp4", .skipinfo = true, .fix_editlists = true},
|
|
{"matroska", .skipinfo = true},
|
|
|
|
// In theory, such streams might contain timestamps, but virtually none do.
|
|
{"h264", .if_flags = AVFMT_NOTIMESTAMPS },
|
|
{"hevc", .if_flags = AVFMT_NOTIMESTAMPS },
|
|
|
|
// Rebasing start time to 0 is very weird with ogg shoutcast streams.
|
|
{"ogg", .ignore_start = true},
|
|
|
|
TEXTSUB("aqtitle"), TEXTSUB("jacosub"), TEXTSUB("microdvd"),
|
|
TEXTSUB("mpl2"), TEXTSUB("mpsub"), TEXTSUB("pjs"), TEXTSUB("realtext"),
|
|
TEXTSUB("sami"), TEXTSUB("srt"), TEXTSUB("stl"), TEXTSUB("subviewer"),
|
|
TEXTSUB("subviewer1"), TEXTSUB("vplayer"), TEXTSUB("ass"),
|
|
|
|
TEXTSUB_UTF8("webvtt"),
|
|
|
|
// Useless non-sense, sometimes breaks MLP2 subreader.c fallback
|
|
BLACKLIST("tty"),
|
|
// Let's open files with extremely generic extensions (.bin) with a
|
|
// demuxer that doesn't have a probe function! NO.
|
|
BLACKLIST("bin"),
|
|
// Useless, does not work with custom streams.
|
|
BLACKLIST("image2"),
|
|
// Probably a security risk.
|
|
BLACKLIST("ffm"),
|
|
// Image demuxers ("<name>_pipe" is detected explicitly)
|
|
{"image2pipe", .image_format = true},
|
|
{0}
|
|
};
|
|
|
|
typedef struct lavf_priv {
|
|
struct stream *stream;
|
|
bool own_stream;
|
|
char *filename;
|
|
struct format_hack format_hack;
|
|
AVInputFormat *avif;
|
|
int avif_flags;
|
|
AVFormatContext *avfc;
|
|
bstr init_fragment;
|
|
int64_t stream_pos;
|
|
AVIOContext *pb;
|
|
struct sh_stream **streams; // NULL for unknown streams
|
|
int num_streams;
|
|
int cur_program;
|
|
char *mime_type;
|
|
double seek_delay;
|
|
|
|
struct demux_lavf_opts *opts;
|
|
double mf_fps;
|
|
} lavf_priv_t;
|
|
|
|
// At least mp4 has name="mov,mp4,m4a,3gp,3g2,mj2", so we split the name
|
|
// on "," in general.
|
|
static bool matches_avinputformat_name(struct lavf_priv *priv,
|
|
const char *name)
|
|
{
|
|
const char *avifname = priv->avif->name;
|
|
while (1) {
|
|
const char *next = strchr(avifname, ',');
|
|
if (!next)
|
|
return !strcmp(avifname, name);
|
|
int len = next - avifname;
|
|
if (len == strlen(name) && !memcmp(avifname, name, len))
|
|
return true;
|
|
avifname = next + 1;
|
|
}
|
|
}
|
|
|
|
static int mp_read(void *opaque, uint8_t *buf, int size)
|
|
{
|
|
struct demuxer *demuxer = opaque;
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
struct stream *stream = priv->stream;
|
|
int ret;
|
|
|
|
if (priv->stream_pos < priv->init_fragment.len) {
|
|
ret = MPMIN(size, priv->init_fragment.len - priv->stream_pos);
|
|
memcpy(buf, priv->init_fragment.start + priv->stream_pos, ret);
|
|
priv->stream_pos += ret;
|
|
} else {
|
|
ret = stream_read_partial(stream, buf, size);
|
|
priv->stream_pos = priv->init_fragment.len + stream_tell(stream);
|
|
}
|
|
|
|
MP_TRACE(demuxer, "%d=mp_read(%p, %p, %d), pos: %"PRId64", eof:%d\n",
|
|
ret, stream, buf, size, stream_tell(stream), stream->eof);
|
|
return ret ? ret : AVERROR_EOF;
|
|
}
|
|
|
|
static int64_t mp_seek(void *opaque, int64_t pos, int whence)
|
|
{
|
|
struct demuxer *demuxer = opaque;
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
struct stream *stream = priv->stream;
|
|
|
|
MP_TRACE(demuxer, "mp_seek(%p, %"PRId64", %s)\n", stream, pos,
|
|
whence == SEEK_END ? "end" :
|
|
whence == SEEK_CUR ? "cur" :
|
|
whence == SEEK_SET ? "set" : "size");
|
|
if (whence == SEEK_END || whence == AVSEEK_SIZE) {
|
|
int64_t end = stream_get_size(stream) + priv->init_fragment.len;
|
|
if (end < 0)
|
|
return -1;
|
|
if (whence == AVSEEK_SIZE)
|
|
return end;
|
|
pos += end;
|
|
} else if (whence == SEEK_CUR) {
|
|
pos += priv->stream_pos;
|
|
} else if (whence != SEEK_SET) {
|
|
return -1;
|
|
}
|
|
|
|
if (pos < 0)
|
|
return -1;
|
|
|
|
int64_t stream_target = pos - priv->init_fragment.len;
|
|
bool seek_before = stream_target < 0;
|
|
if (seek_before)
|
|
stream_target = 0; // within init segment - seek real stream to 0
|
|
|
|
int64_t current_pos = stream_tell(stream);
|
|
if (stream_seek(stream, stream_target) == 0) {
|
|
stream_seek(stream, current_pos);
|
|
return -1;
|
|
}
|
|
|
|
if (seek_before) {
|
|
priv->stream_pos = pos;
|
|
} else {
|
|
priv->stream_pos = priv->init_fragment.len + stream_tell(stream);
|
|
}
|
|
|
|
return pos;
|
|
}
|
|
|
|
static int64_t mp_read_seek(void *opaque, int stream_idx, int64_t ts, int flags)
|
|
{
|
|
struct demuxer *demuxer = opaque;
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
struct stream *stream = priv->stream;
|
|
|
|
struct stream_avseek cmd = {
|
|
.stream_index = stream_idx,
|
|
.timestamp = ts,
|
|
.flags = flags,
|
|
};
|
|
|
|
if (stream_control(stream, STREAM_CTRL_AVSEEK, &cmd) == STREAM_OK) {
|
|
stream_drop_buffers(stream);
|
|
return 0;
|
|
}
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
|
|
static void list_formats(struct demuxer *demuxer)
|
|
{
|
|
MP_INFO(demuxer, "Available lavf input formats:\n");
|
|
AVInputFormat *fmt = NULL;
|
|
while ((fmt = av_iformat_next(fmt)))
|
|
MP_INFO(demuxer, "%15s : %s\n", fmt->name, fmt->long_name);
|
|
}
|
|
|
|
static void convert_charset(struct demuxer *demuxer)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
char *cp = priv->opts->sub_cp;
|
|
if (!cp || mp_charset_is_utf8(cp))
|
|
return;
|
|
bstr data = stream_read_complete(priv->stream, NULL, 128 * 1024 * 1024);
|
|
if (!data.start) {
|
|
MP_WARN(demuxer, "File too big (or error reading) - skip charset probing.\n");
|
|
return;
|
|
}
|
|
void *alloc = data.start;
|
|
cp = (char *)mp_charset_guess(priv, demuxer->log, data, cp, 0);
|
|
if (cp && !mp_charset_is_utf8(cp))
|
|
MP_INFO(demuxer, "Using subtitle charset: %s\n", cp);
|
|
// libavformat transparently converts UTF-16 to UTF-8
|
|
if (!mp_charset_is_utf16(cp) && !mp_charset_is_utf8(cp)) {
|
|
bstr conv = mp_iconv_to_utf8(demuxer->log, data, cp, MP_ICONV_VERBOSE);
|
|
if (conv.start && conv.start != data.start)
|
|
talloc_steal(alloc, conv.start);
|
|
if (conv.start)
|
|
data = conv;
|
|
}
|
|
if (data.start) {
|
|
priv->stream = open_memory_stream(data.start, data.len);
|
|
priv->own_stream = true;
|
|
}
|
|
talloc_free(alloc);
|
|
}
|
|
|
|
static char *remove_prefix(char *s, const char *const *prefixes)
|
|
{
|
|
for (int n = 0; prefixes[n]; n++) {
|
|
int len = strlen(prefixes[n]);
|
|
if (strncmp(s, prefixes[n], len) == 0)
|
|
return s + len;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
static const char *const prefixes[] =
|
|
{"ffmpeg://", "lavf://", "avdevice://", "av://", NULL};
|
|
|
|
static int lavf_check_file(demuxer_t *demuxer, enum demux_check check)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
struct demux_lavf_opts *lavfdopts = priv->opts;
|
|
struct stream *s = priv->stream;
|
|
|
|
priv->filename = remove_prefix(s->url, prefixes);
|
|
|
|
char *avdevice_format = NULL;
|
|
if (s->info && strcmp(s->info->name, "avdevice") == 0) {
|
|
// always require filename in the form "format:filename"
|
|
char *sep = strchr(priv->filename, ':');
|
|
if (!sep) {
|
|
MP_FATAL(demuxer, "Must specify filename in 'format:filename' form\n");
|
|
return -1;
|
|
}
|
|
avdevice_format = talloc_strndup(priv, priv->filename,
|
|
sep - priv->filename);
|
|
priv->filename = sep + 1;
|
|
}
|
|
|
|
char *mime_type = s->mime_type;
|
|
if (!lavfdopts->allow_mimetype || !mime_type)
|
|
mime_type = "";
|
|
|
|
AVInputFormat *forced_format = NULL;
|
|
const char *format = lavfdopts->format;
|
|
if (!format)
|
|
format = s->lavf_type;
|
|
if (!format)
|
|
format = avdevice_format;
|
|
if (format) {
|
|
if (strcmp(format, "help") == 0) {
|
|
list_formats(demuxer);
|
|
return -1;
|
|
}
|
|
forced_format = av_find_input_format(format);
|
|
if (!forced_format) {
|
|
MP_FATAL(demuxer, "Unknown lavf format %s\n", format);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
AVProbeData avpd = {
|
|
// Disable file-extension matching with normal checks
|
|
.filename = priv->filename,
|
|
.buf_size = 0,
|
|
.buf = av_mallocz(PROBE_BUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE),
|
|
};
|
|
if (!avpd.buf)
|
|
return -1;
|
|
|
|
bool final_probe = false;
|
|
do {
|
|
int score = 0;
|
|
|
|
if (forced_format) {
|
|
priv->avif = forced_format;
|
|
score = AVPROBE_SCORE_MAX;
|
|
} else {
|
|
int nsize = av_clip(avpd.buf_size * 2, INITIAL_PROBE_SIZE,
|
|
PROBE_BUF_SIZE);
|
|
bstr buf = stream_peek(s, nsize);
|
|
if (buf.len <= avpd.buf_size)
|
|
final_probe = true;
|
|
memcpy(avpd.buf, buf.start, buf.len);
|
|
avpd.buf_size = buf.len;
|
|
|
|
priv->avif = av_probe_input_format2(&avpd, avpd.buf_size > 0, &score);
|
|
}
|
|
|
|
if (priv->avif) {
|
|
MP_VERBOSE(demuxer, "Found '%s' at score=%d size=%d%s.\n",
|
|
priv->avif->name, score, avpd.buf_size,
|
|
forced_format ? " (forced)" : "");
|
|
|
|
for (int n = 0; format_hacks[n].ff_name; n++) {
|
|
const struct format_hack *entry = &format_hacks[n];
|
|
if (!lavfdopts->hacks)
|
|
continue;
|
|
if (!matches_avinputformat_name(priv, entry->ff_name))
|
|
continue;
|
|
if (entry->mime_type && strcasecmp(entry->mime_type, mime_type) != 0)
|
|
continue;
|
|
priv->format_hack = *entry;
|
|
break;
|
|
}
|
|
|
|
if (score >= lavfdopts->probescore)
|
|
break;
|
|
|
|
if (priv->format_hack.probescore &&
|
|
score >= priv->format_hack.probescore &&
|
|
(!priv->format_hack.max_probe || final_probe))
|
|
break;
|
|
}
|
|
|
|
priv->avif = NULL;
|
|
priv->format_hack = (struct format_hack){0};
|
|
} while (!final_probe);
|
|
|
|
av_free(avpd.buf);
|
|
|
|
if (priv->avif && !forced_format && priv->format_hack.ignore) {
|
|
MP_VERBOSE(demuxer, "Format blacklisted.\n");
|
|
priv->avif = NULL;
|
|
}
|
|
|
|
if (!priv->avif) {
|
|
MP_VERBOSE(demuxer, "No format found, try lowering probescore or forcing the format.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (bstr_endswith0(bstr0(priv->avif->name), "_pipe")) {
|
|
MP_VERBOSE(demuxer, "Assuming this is an image format.\n");
|
|
priv->format_hack.image_format = true;
|
|
}
|
|
|
|
if (lavfdopts->hacks)
|
|
priv->avif_flags = priv->avif->flags | priv->format_hack.if_flags;
|
|
|
|
demuxer->filetype = priv->avif->name;
|
|
|
|
if (priv->format_hack.detect_charset)
|
|
convert_charset(demuxer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static char *replace_idx_ext(void *ta_ctx, bstr f)
|
|
{
|
|
if (f.len < 4 || f.start[f.len - 4] != '.')
|
|
return NULL;
|
|
char *ext = bstr_endswith0(f, "IDX") ? "SUB" : "sub"; // match case
|
|
return talloc_asprintf(ta_ctx, "%.*s.%s", BSTR_P(bstr_splice(f, 0, -4)), ext);
|
|
}
|
|
|
|
static void guess_and_set_vobsub_name(struct demuxer *demuxer, AVDictionary **d)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
if (!matches_avinputformat_name(priv, "vobsub"))
|
|
return;
|
|
|
|
void *tmp = talloc_new(NULL);
|
|
bstr bfilename = bstr0(priv->filename);
|
|
char *subname = NULL;
|
|
if (mp_is_url(bfilename)) {
|
|
// It might be a http URL, which has additional parameters after the
|
|
// end of the actual file path.
|
|
bstr start, end;
|
|
if (bstr_split_tok(bfilename, "?", &start, &end)) {
|
|
subname = replace_idx_ext(tmp, start);
|
|
if (subname)
|
|
subname = talloc_asprintf(tmp, "%s?%.*s", subname, BSTR_P(end));
|
|
}
|
|
}
|
|
if (!subname)
|
|
subname = replace_idx_ext(tmp, bfilename);
|
|
if (!subname)
|
|
subname = talloc_asprintf(tmp, "%.*s.sub", BSTR_P(bfilename));
|
|
|
|
MP_VERBOSE(demuxer, "Assuming associated .sub file: %s\n", subname);
|
|
av_dict_set(d, "sub_name", subname, 0);
|
|
talloc_free(tmp);
|
|
}
|
|
|
|
static void select_tracks(struct demuxer *demuxer, int start)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
for (int n = start; n < priv->num_streams; n++) {
|
|
struct sh_stream *stream = priv->streams[n];
|
|
AVStream *st = priv->avfc->streams[n];
|
|
bool selected = stream && demux_stream_is_selected(stream) &&
|
|
!stream->attached_picture;
|
|
st->discard = selected ? AVDISCARD_DEFAULT : AVDISCARD_ALL;
|
|
}
|
|
}
|
|
|
|
static void export_replaygain(demuxer_t *demuxer, struct sh_stream *sh,
|
|
AVStream *st)
|
|
{
|
|
for (int i = 0; i < st->nb_side_data; i++) {
|
|
AVReplayGain *av_rgain;
|
|
struct replaygain_data *rgain;
|
|
AVPacketSideData *src_sd = &st->side_data[i];
|
|
|
|
if (src_sd->type != AV_PKT_DATA_REPLAYGAIN)
|
|
continue;
|
|
|
|
av_rgain = (AVReplayGain*)src_sd->data;
|
|
rgain = talloc_ptrtype(demuxer, rgain);
|
|
|
|
rgain->track_gain = (av_rgain->track_gain != INT32_MIN) ?
|
|
av_rgain->track_gain / 100000.0f : 0.0;
|
|
|
|
rgain->track_peak = (av_rgain->track_peak != 0.0) ?
|
|
av_rgain->track_peak / 100000.0f : 1.0;
|
|
|
|
rgain->album_gain = (av_rgain->album_gain != INT32_MIN) ?
|
|
av_rgain->album_gain / 100000.0f : 0.0;
|
|
|
|
rgain->album_peak = (av_rgain->album_peak != 0.0) ?
|
|
av_rgain->album_peak / 100000.0f : 1.0;
|
|
|
|
// This must be run only before the stream was added, otherwise there
|
|
// will be race conditions with accesses from the user thread.
|
|
assert(!sh->ds);
|
|
sh->codec->replaygain_data = rgain;
|
|
}
|
|
}
|
|
|
|
// Return a dictionary entry as (decimal) integer.
|
|
static int dict_get_decimal(AVDictionary *dict, const char *entry, int def)
|
|
{
|
|
AVDictionaryEntry *e = av_dict_get(dict, entry, NULL, 0);
|
|
if (e && e->value) {
|
|
char *end = NULL;
|
|
long int r = strtol(e->value, &end, 10);
|
|
if (end && !end[0] && r >= INT_MIN && r <= INT_MAX)
|
|
return r;
|
|
}
|
|
return def;
|
|
}
|
|
|
|
static void handle_new_stream(demuxer_t *demuxer, int i)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
AVFormatContext *avfc = priv->avfc;
|
|
AVStream *st = avfc->streams[i];
|
|
struct sh_stream *sh = NULL;
|
|
AVCodecParameters *codec = st->codecpar;
|
|
int lavc_delay = codec->initial_padding;
|
|
|
|
switch (codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO: {
|
|
sh = demux_alloc_sh_stream(STREAM_AUDIO);
|
|
|
|
// probably unneeded
|
|
mp_chmap_set_unknown(&sh->codec->channels, codec->channels);
|
|
if (codec->channel_layout)
|
|
mp_chmap_from_lavc(&sh->codec->channels, codec->channel_layout);
|
|
sh->codec->samplerate = codec->sample_rate;
|
|
sh->codec->bitrate = codec->bit_rate;
|
|
|
|
double delay = 0;
|
|
if (codec->sample_rate > 0)
|
|
delay = lavc_delay / (double)codec->sample_rate;
|
|
priv->seek_delay = MPMAX(priv->seek_delay, delay);
|
|
|
|
export_replaygain(demuxer, sh, st);
|
|
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_VIDEO: {
|
|
sh = demux_alloc_sh_stream(STREAM_VIDEO);
|
|
|
|
if (st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
|
|
sh->attached_picture =
|
|
new_demux_packet_from_avpacket(&st->attached_pic);
|
|
if (sh->attached_picture) {
|
|
sh->attached_picture->pts = 0;
|
|
talloc_steal(sh, sh->attached_picture);
|
|
sh->attached_picture->keyframe = true;
|
|
}
|
|
}
|
|
|
|
sh->codec->disp_w = codec->width;
|
|
sh->codec->disp_h = codec->height;
|
|
if (st->avg_frame_rate.num)
|
|
sh->codec->fps = av_q2d(st->avg_frame_rate);
|
|
if (priv->format_hack.image_format)
|
|
sh->codec->fps = priv->mf_fps;
|
|
sh->codec->par_w = st->sample_aspect_ratio.num;
|
|
sh->codec->par_h = st->sample_aspect_ratio.den;
|
|
|
|
uint8_t *sd = av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, NULL);
|
|
if (sd) {
|
|
double r = av_display_rotation_get((uint32_t *)sd);
|
|
if (!isnan(r))
|
|
sh->codec->rotate = (((int)(-r) % 360) + 360) % 360;
|
|
}
|
|
|
|
sd = av_stream_get_side_data(st, AV_PKT_DATA_SPHERICAL, NULL);
|
|
if (sd) {
|
|
AVSphericalMapping *sp = (void *)sd;
|
|
struct mp_spherical_params *mpsp = &sh->codec->spherical;
|
|
mpsp->type = sp->projection == AV_SPHERICAL_EQUIRECTANGULAR ?
|
|
MP_SPHERICAL_EQUIRECTANGULAR : MP_SPHERICAL_UNKNOWN;
|
|
mpsp->ref_angles[0] = sp->yaw / (float)(1 << 16);
|
|
mpsp->ref_angles[1] = sp->pitch / (float)(1 << 16);
|
|
mpsp->ref_angles[2] = sp->roll / (float)(1 << 16);
|
|
}
|
|
|
|
// This also applies to vfw-muxed mkv, but we can't detect these easily.
|
|
sh->codec->avi_dts = matches_avinputformat_name(priv, "avi");
|
|
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_SUBTITLE: {
|
|
sh = demux_alloc_sh_stream(STREAM_SUB);
|
|
|
|
if (codec->extradata_size) {
|
|
sh->codec->extradata = talloc_size(sh, codec->extradata_size);
|
|
memcpy(sh->codec->extradata, codec->extradata, codec->extradata_size);
|
|
sh->codec->extradata_size = codec->extradata_size;
|
|
}
|
|
|
|
if (matches_avinputformat_name(priv, "microdvd")) {
|
|
AVRational r;
|
|
if (av_opt_get_q(avfc, "subfps", AV_OPT_SEARCH_CHILDREN, &r) >= 0) {
|
|
// File headers don't have a FPS set.
|
|
if (r.num < 1 || r.den < 1)
|
|
sh->codec->frame_based = 23.976; // default timebase
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_ATTACHMENT: {
|
|
AVDictionaryEntry *ftag = av_dict_get(st->metadata, "filename", NULL, 0);
|
|
char *filename = ftag ? ftag->value : NULL;
|
|
AVDictionaryEntry *mt = av_dict_get(st->metadata, "mimetype", NULL, 0);
|
|
char *mimetype = mt ? mt->value : NULL;
|
|
if (mimetype) {
|
|
demuxer_add_attachment(demuxer, filename, mimetype,
|
|
codec->extradata, codec->extradata_size);
|
|
}
|
|
break;
|
|
}
|
|
default: ;
|
|
}
|
|
|
|
assert(priv->num_streams == i); // directly mapped
|
|
MP_TARRAY_APPEND(priv, priv->streams, priv->num_streams, sh);
|
|
|
|
if (sh) {
|
|
sh->ff_index = st->index;
|
|
sh->codec->codec = mp_codec_from_av_codec_id(codec->codec_id);
|
|
sh->codec->codec_tag = codec->codec_tag;
|
|
sh->codec->lav_codecpar = avcodec_parameters_alloc();
|
|
if (sh->codec->lav_codecpar)
|
|
avcodec_parameters_copy(sh->codec->lav_codecpar, codec);
|
|
sh->codec->native_tb_num = st->time_base.num;
|
|
sh->codec->native_tb_den = st->time_base.den;
|
|
|
|
if (st->disposition & AV_DISPOSITION_DEFAULT)
|
|
sh->default_track = true;
|
|
if (st->disposition & AV_DISPOSITION_FORCED)
|
|
sh->forced_track = true;
|
|
if (priv->format_hack.use_stream_ids)
|
|
sh->demuxer_id = st->id;
|
|
AVDictionaryEntry *title = av_dict_get(st->metadata, "title", NULL, 0);
|
|
if (title && title->value)
|
|
sh->title = talloc_strdup(sh, title->value);
|
|
if (!sh->title && st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
|
|
sh->title = talloc_asprintf(sh, "visual impaired");
|
|
if (!sh->title && st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
|
|
sh->title = talloc_asprintf(sh, "hearing impaired");
|
|
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
|
|
if (lang && lang->value)
|
|
sh->lang = talloc_strdup(sh, lang->value);
|
|
sh->hls_bitrate = dict_get_decimal(st->metadata, "variant_bitrate", 0);
|
|
if (!sh->title && sh->hls_bitrate > 0)
|
|
sh->title = talloc_asprintf(sh, "bitrate %d", sh->hls_bitrate);
|
|
sh->missing_timestamps = !!(priv->avif_flags & AVFMT_NOTIMESTAMPS);
|
|
mp_tags_copy_from_av_dictionary(sh->tags, st->metadata);
|
|
demux_add_sh_stream(demuxer, sh);
|
|
}
|
|
|
|
select_tracks(demuxer, i);
|
|
}
|
|
|
|
// Add any new streams that might have been added
|
|
static void add_new_streams(demuxer_t *demuxer)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
while (priv->num_streams < priv->avfc->nb_streams)
|
|
handle_new_stream(demuxer, priv->num_streams);
|
|
}
|
|
|
|
static void update_metadata(demuxer_t *demuxer, AVPacket *pkt)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
if (priv->avfc->event_flags & AVFMT_EVENT_FLAG_METADATA_UPDATED) {
|
|
mp_tags_copy_from_av_dictionary(demuxer->metadata, priv->avfc->metadata);
|
|
priv->avfc->event_flags = 0;
|
|
demux_changed(demuxer, DEMUX_EVENT_METADATA);
|
|
}
|
|
|
|
for (int n = 0; n < priv->num_streams; n++) {
|
|
AVStream *st = priv->streams[n] ? priv->avfc->streams[n] : NULL;
|
|
if (st && st->event_flags & AVSTREAM_EVENT_FLAG_METADATA_UPDATED) {
|
|
st->event_flags = 0;
|
|
struct mp_tags *tags = talloc_zero(NULL, struct mp_tags);
|
|
mp_tags_copy_from_av_dictionary(tags, st->metadata);
|
|
demux_set_stream_tags(demuxer, priv->streams[n], tags);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int interrupt_cb(void *ctx)
|
|
{
|
|
struct demuxer *demuxer = ctx;
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
return mp_cancel_test(priv->stream->cancel);
|
|
}
|
|
|
|
static int block_io_open(struct AVFormatContext *s, AVIOContext **pb,
|
|
const char *url, int flags, AVDictionary **options)
|
|
{
|
|
struct demuxer *demuxer = s->opaque;
|
|
MP_ERR(demuxer, "Not opening '%s' due to --access-references=no.\n", url);
|
|
return AVERROR(EACCES);
|
|
}
|
|
|
|
static int demux_open_lavf(demuxer_t *demuxer, enum demux_check check)
|
|
{
|
|
AVFormatContext *avfc;
|
|
AVDictionaryEntry *t = NULL;
|
|
float analyze_duration = 0;
|
|
lavf_priv_t *priv = talloc_zero(NULL, lavf_priv_t);
|
|
demuxer->priv = priv;
|
|
priv->stream = demuxer->stream;
|
|
|
|
priv->opts = mp_get_config_group(priv, demuxer->global, &demux_lavf_conf);
|
|
struct demux_lavf_opts *lavfdopts = priv->opts;
|
|
|
|
int index_mode;
|
|
mp_read_option_raw(demuxer->global, "index", &m_option_type_choice,
|
|
&index_mode);
|
|
mp_read_option_raw(demuxer->global, "mf-fps", &m_option_type_double,
|
|
&priv->mf_fps);
|
|
|
|
if (lavf_check_file(demuxer, check) < 0)
|
|
return -1;
|
|
|
|
if (demuxer->params)
|
|
priv->init_fragment = bstrdup(priv, demuxer->params->init_fragment);
|
|
|
|
avfc = avformat_alloc_context();
|
|
if (!avfc)
|
|
return -1;
|
|
|
|
if (lavfdopts->genptsmode)
|
|
avfc->flags |= AVFMT_FLAG_GENPTS;
|
|
if (index_mode != 1)
|
|
avfc->flags |= AVFMT_FLAG_IGNIDX;
|
|
|
|
if (lavfdopts->probesize) {
|
|
if (av_opt_set_int(avfc, "probesize", lavfdopts->probesize, 0) < 0)
|
|
MP_ERR(demuxer, "couldn't set option probesize to %u\n",
|
|
lavfdopts->probesize);
|
|
}
|
|
|
|
if (priv->format_hack.analyzeduration)
|
|
analyze_duration = priv->format_hack.analyzeduration;
|
|
if (lavfdopts->analyzeduration)
|
|
analyze_duration = lavfdopts->analyzeduration;
|
|
if (analyze_duration > 0) {
|
|
if (av_opt_set_int(avfc, "analyzeduration",
|
|
analyze_duration * AV_TIME_BASE, 0) < 0)
|
|
MP_ERR(demuxer, "demux_lavf, couldn't set option "
|
|
"analyzeduration to %f\n", analyze_duration);
|
|
}
|
|
|
|
AVDictionary *dopts = NULL;
|
|
|
|
if ((priv->avif_flags & AVFMT_NOFILE) || priv->format_hack.no_stream) {
|
|
mp_setup_av_network_options(&dopts, demuxer->global, demuxer->log);
|
|
// This might be incorrect.
|
|
demuxer->seekable = true;
|
|
} else {
|
|
void *buffer = av_malloc(lavfdopts->buffersize);
|
|
if (!buffer)
|
|
return -1;
|
|
priv->pb = avio_alloc_context(buffer, lavfdopts->buffersize, 0,
|
|
demuxer, mp_read, NULL, mp_seek);
|
|
if (!priv->pb) {
|
|
av_free(buffer);
|
|
return -1;
|
|
}
|
|
priv->pb->read_seek = mp_read_seek;
|
|
priv->pb->seekable = demuxer->seekable ? AVIO_SEEKABLE_NORMAL : 0;
|
|
avfc->pb = priv->pb;
|
|
if (stream_control(priv->stream, STREAM_CTRL_HAS_AVSEEK, NULL) > 0)
|
|
demuxer->seekable = true;
|
|
demuxer->seekable |= priv->format_hack.fully_read;
|
|
}
|
|
|
|
if (matches_avinputformat_name(priv, "rtsp")) {
|
|
const char *transport = NULL;
|
|
switch (lavfdopts->rtsp_transport) {
|
|
case 1: transport = "udp"; break;
|
|
case 2: transport = "tcp"; break;
|
|
case 3: transport = "http"; break;
|
|
}
|
|
if (transport)
|
|
av_dict_set(&dopts, "rtsp_transport", transport, 0);
|
|
}
|
|
|
|
guess_and_set_vobsub_name(demuxer, &dopts);
|
|
|
|
if (priv->format_hack.fix_editlists)
|
|
av_dict_set(&dopts, "advanced_editlist", "0", 0);
|
|
|
|
avfc->interrupt_callback = (AVIOInterruptCB){
|
|
.callback = interrupt_cb,
|
|
.opaque = demuxer,
|
|
};
|
|
|
|
avfc->opaque = demuxer;
|
|
if (!demuxer->access_references)
|
|
avfc->io_open = block_io_open;
|
|
|
|
mp_set_avdict(&dopts, lavfdopts->avopts);
|
|
|
|
if (avformat_open_input(&avfc, priv->filename, priv->avif, &dopts) < 0) {
|
|
MP_ERR(demuxer, "avformat_open_input() failed\n");
|
|
av_dict_free(&dopts);
|
|
return -1;
|
|
}
|
|
|
|
mp_avdict_print_unset(demuxer->log, MSGL_V, dopts);
|
|
av_dict_free(&dopts);
|
|
|
|
priv->avfc = avfc;
|
|
|
|
bool probeinfo = lavfdopts->probeinfo < 0 ?
|
|
!priv->format_hack.skipinfo : lavfdopts->probeinfo;
|
|
if (demuxer->params && demuxer->params->skip_lavf_probing)
|
|
probeinfo = false;
|
|
if (probeinfo) {
|
|
if (avformat_find_stream_info(avfc, NULL) < 0) {
|
|
MP_ERR(demuxer, "av_find_stream_info() failed\n");
|
|
return -1;
|
|
}
|
|
|
|
MP_VERBOSE(demuxer, "avformat_find_stream_info() finished after %"PRId64
|
|
" bytes.\n", stream_tell(priv->stream));
|
|
}
|
|
|
|
for (int i = 0; i < avfc->nb_chapters; i++) {
|
|
AVChapter *c = avfc->chapters[i];
|
|
t = av_dict_get(c->metadata, "title", NULL, 0);
|
|
int index = demuxer_add_chapter(demuxer, t ? t->value : "",
|
|
c->start * av_q2d(c->time_base), i);
|
|
mp_tags_copy_from_av_dictionary(demuxer->chapters[index].metadata, c->metadata);
|
|
}
|
|
|
|
add_new_streams(demuxer);
|
|
|
|
mp_tags_copy_from_av_dictionary(demuxer->metadata, avfc->metadata);
|
|
update_metadata(demuxer, NULL);
|
|
|
|
demuxer->ts_resets_possible =
|
|
priv->avif_flags & (AVFMT_TS_DISCONT | AVFMT_NOTIMESTAMPS);
|
|
|
|
if (avfc->start_time != AV_NOPTS_VALUE && !priv->format_hack.ignore_start)
|
|
demuxer->start_time = avfc->start_time / (double)AV_TIME_BASE;
|
|
|
|
demuxer->fully_read = priv->format_hack.fully_read;
|
|
|
|
if (priv->avfc->duration > 0) {
|
|
demuxer->duration = (double)priv->avfc->duration / AV_TIME_BASE;
|
|
} else {
|
|
double total_duration = 0;
|
|
double av_duration = 0;
|
|
for (int n = 0; n < priv->avfc->nb_streams; n++) {
|
|
AVStream *st = priv->avfc->streams[n];
|
|
if (st->duration <= 0)
|
|
continue;
|
|
double f_duration = st->duration * av_q2d(st->time_base);
|
|
total_duration = MPMAX(total_duration, f_duration);
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ||
|
|
st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
av_duration = MPMAX(av_duration, f_duration);
|
|
}
|
|
double duration = av_duration > 0 ? av_duration : total_duration;
|
|
if (duration > 0)
|
|
demuxer->duration = duration;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int demux_lavf_fill_buffer(demuxer_t *demux)
|
|
{
|
|
lavf_priv_t *priv = demux->priv;
|
|
|
|
AVPacket *pkt = &(AVPacket){0};
|
|
int r = av_read_frame(priv->avfc, pkt);
|
|
if (r < 0) {
|
|
av_packet_unref(pkt);
|
|
if (r == AVERROR(EAGAIN))
|
|
return 1;
|
|
if (r == AVERROR_EOF)
|
|
return 0;
|
|
MP_WARN(demux, "error reading packet.\n");
|
|
return -1;
|
|
}
|
|
|
|
add_new_streams(demux);
|
|
update_metadata(demux, pkt);
|
|
|
|
assert(pkt->stream_index >= 0 && pkt->stream_index < priv->num_streams);
|
|
struct sh_stream *stream = priv->streams[pkt->stream_index];
|
|
AVStream *st = priv->avfc->streams[pkt->stream_index];
|
|
|
|
if (!demux_stream_is_selected(stream)) {
|
|
av_packet_unref(pkt);
|
|
return 1; // don't signal EOF if skipping a packet
|
|
}
|
|
|
|
struct demux_packet *dp = new_demux_packet_from_avpacket(pkt);
|
|
if (!dp) {
|
|
av_packet_unref(pkt);
|
|
return 1;
|
|
}
|
|
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
dp->pts = pkt->pts * av_q2d(st->time_base);
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
dp->dts = pkt->dts * av_q2d(st->time_base);
|
|
dp->duration = pkt->duration * av_q2d(st->time_base);
|
|
dp->pos = pkt->pos;
|
|
dp->keyframe = pkt->flags & AV_PKT_FLAG_KEY;
|
|
#if LIBAVFORMAT_VERSION_MICRO >= 100
|
|
if (pkt->flags & AV_PKT_FLAG_DISCARD)
|
|
MP_ERR(demux, "Edit lists are not correctly supported (FFmpeg issue).\n");
|
|
#endif
|
|
av_packet_unref(pkt);
|
|
|
|
if (priv->format_hack.clear_filepos)
|
|
dp->pos = -1;
|
|
|
|
demux_add_packet(stream, dp);
|
|
return 1;
|
|
}
|
|
|
|
static void demux_seek_lavf(demuxer_t *demuxer, double seek_pts, int flags)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
int avsflags = 0;
|
|
int64_t seek_pts_av = 0;
|
|
|
|
if (!(flags & SEEK_FORWARD))
|
|
avsflags = AVSEEK_FLAG_BACKWARD;
|
|
|
|
if (flags & SEEK_FACTOR) {
|
|
struct stream *s = priv->stream;
|
|
int64_t end = stream_get_size(s);
|
|
if (end > 0 && demuxer->ts_resets_possible &&
|
|
!(priv->avif_flags & AVFMT_NO_BYTE_SEEK))
|
|
{
|
|
avsflags |= AVSEEK_FLAG_BYTE;
|
|
seek_pts_av = end * seek_pts;
|
|
} else if (priv->avfc->duration != 0 &&
|
|
priv->avfc->duration != AV_NOPTS_VALUE)
|
|
{
|
|
seek_pts_av = seek_pts * priv->avfc->duration;
|
|
}
|
|
} else {
|
|
if (!(flags & SEEK_FORWARD))
|
|
seek_pts -= priv->seek_delay;
|
|
seek_pts_av = seek_pts * AV_TIME_BASE;
|
|
}
|
|
|
|
int r = av_seek_frame(priv->avfc, -1, seek_pts_av, avsflags);
|
|
if (r < 0 && (avsflags & AVSEEK_FLAG_BACKWARD)) {
|
|
// When seeking before the beginning of the file, and seeking fails,
|
|
// try again without the backwards flag to make it seek to the
|
|
// beginning.
|
|
avsflags &= ~AVSEEK_FLAG_BACKWARD;
|
|
r = av_seek_frame(priv->avfc, -1, seek_pts_av, avsflags);
|
|
}
|
|
|
|
if (r < 0) {
|
|
char buf[180];
|
|
av_strerror(r, buf, sizeof(buf));
|
|
MP_VERBOSE(demuxer, "Seek failed (%s)\n", buf);
|
|
}
|
|
}
|
|
|
|
static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
|
|
switch (cmd) {
|
|
case DEMUXER_CTRL_SWITCHED_TRACKS:
|
|
{
|
|
select_tracks(demuxer, 0);
|
|
return CONTROL_OK;
|
|
}
|
|
case DEMUXER_CTRL_IDENTIFY_PROGRAM:
|
|
{
|
|
demux_program_t *prog = arg;
|
|
AVProgram *program;
|
|
int p, i;
|
|
int start;
|
|
|
|
add_new_streams(demuxer);
|
|
|
|
prog->vid = prog->aid = prog->sid = -2;
|
|
if (priv->avfc->nb_programs < 1)
|
|
return CONTROL_FALSE;
|
|
|
|
if (prog->progid == -1) {
|
|
p = 0;
|
|
while (p < priv->avfc->nb_programs && priv->avfc->programs[p]->id != priv->cur_program)
|
|
p++;
|
|
p = (p + 1) % priv->avfc->nb_programs;
|
|
} else {
|
|
for (i = 0; i < priv->avfc->nb_programs; i++)
|
|
if (priv->avfc->programs[i]->id == prog->progid)
|
|
break;
|
|
if (i == priv->avfc->nb_programs)
|
|
return CONTROL_FALSE;
|
|
p = i;
|
|
}
|
|
start = p;
|
|
redo:
|
|
prog->vid = prog->aid = prog->sid = -2;
|
|
program = priv->avfc->programs[p];
|
|
for (i = 0; i < program->nb_stream_indexes; i++) {
|
|
struct sh_stream *stream = priv->streams[program->stream_index[i]];
|
|
if (stream) {
|
|
switch (stream->type) {
|
|
case STREAM_VIDEO:
|
|
if (prog->vid == -2)
|
|
prog->vid = stream->demuxer_id;
|
|
break;
|
|
case STREAM_AUDIO:
|
|
if (prog->aid == -2)
|
|
prog->aid = stream->demuxer_id;
|
|
break;
|
|
case STREAM_SUB:
|
|
if (prog->sid == -2)
|
|
prog->sid = stream->demuxer_id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (prog->progid == -1 && prog->vid == -2 && prog->aid == -2) {
|
|
p = (p + 1) % priv->avfc->nb_programs;
|
|
if (p == start)
|
|
return CONTROL_FALSE;
|
|
goto redo;
|
|
}
|
|
priv->cur_program = prog->progid = program->id;
|
|
|
|
mp_tags_copy_from_av_dictionary(demuxer->metadata, priv->avfc->programs[p]->metadata);
|
|
update_metadata(demuxer, NULL);
|
|
// Enforce metadata update even if no explicit METADATA_UPDATED since we switched program.
|
|
demux_changed(demuxer, DEMUX_EVENT_METADATA);
|
|
|
|
return CONTROL_OK;
|
|
}
|
|
case DEMUXER_CTRL_RESYNC:
|
|
/* NOTE:
|
|
*
|
|
* We actually want to call ff_read_frame_flush() here, but it is
|
|
* internal.
|
|
*
|
|
* This function call seems to do the same for now.
|
|
*
|
|
* Once ff_read_frame_flush() is exported in some way, change this to
|
|
* call the new API instead of relying on av_seek_frame() to do this
|
|
* for us.
|
|
*/
|
|
// avio_flush() is designed for write-only streams, and does the wrong
|
|
// thing when reading. Flush it manually instead.
|
|
stream_drop_buffers(priv->stream);
|
|
priv->avfc->pb->buf_ptr = priv->avfc->pb->buf_end = priv->avfc->pb->buffer;
|
|
priv->avfc->pb->pos = stream_tell(priv->stream);
|
|
av_seek_frame(priv->avfc, 0, stream_tell(priv->stream),
|
|
AVSEEK_FLAG_BYTE);
|
|
return CONTROL_OK;
|
|
case DEMUXER_CTRL_REPLACE_STREAM:
|
|
if (priv->own_stream)
|
|
free_stream(priv->stream);
|
|
priv->own_stream = false;
|
|
priv->stream = demuxer->stream;
|
|
return CONTROL_OK;
|
|
default:
|
|
return CONTROL_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
static void demux_close_lavf(demuxer_t *demuxer)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
if (priv) {
|
|
avformat_close_input(&priv->avfc);
|
|
if (priv->pb)
|
|
av_freep(&priv->pb->buffer);
|
|
av_freep(&priv->pb);
|
|
for (int n = 0; n < priv->num_streams; n++) {
|
|
if (priv->streams[n])
|
|
avcodec_parameters_free(&priv->streams[n]->codec->lav_codecpar);
|
|
}
|
|
if (priv->own_stream)
|
|
free_stream(priv->stream);
|
|
talloc_free(priv);
|
|
demuxer->priv = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
const demuxer_desc_t demuxer_desc_lavf = {
|
|
.name = "lavf",
|
|
.desc = "libavformat",
|
|
.fill_buffer = demux_lavf_fill_buffer,
|
|
.open = demux_open_lavf,
|
|
.close = demux_close_lavf,
|
|
.seek = demux_seek_lavf,
|
|
.control = demux_lavf_control,
|
|
};
|