ASS_Track *mp_ass_read_stream(ASS_Library *library, const char *fname,
char *charset)
{
ASS_Track *track;
struct stream *s = open_stream(fname, NULL, NULL);
if (!s)
// Stream code should have printed an error already
return NULL;
struct bstr content = stream_read_complete(s, NULL, 100000000, 1);
if (content.start == NULL)
mp_tmsg(MSGT_ASS, MSGL_ERR, "Refusing to load subtitle file "
"larger than 100 MB: %s\n", fname);
free_stream(s);
if (content.len == 0) {
talloc_free(content.start);
return NULL;
}
content.start[content.len] = 0;
track = ass_read_memory(library, content.start, content.len, charset);
if (track) {
free(track->name);
track->name = strdup(fname);
}
talloc_free(content.start);
return track;
}
// return value:
// 0 = EOF or no stream found
// 1 = successfully read a packet
static int demux_mf_fill_buffer(demuxer_t *demuxer)
{
mf_t *mf = demuxer->priv;
if (mf->curr_frame >= mf->nr_of_files)
return 0;
struct stream *entry_stream = NULL;
if (mf->streams)
entry_stream = mf->streams[mf->curr_frame];
struct stream *stream = entry_stream;
if (!stream) {
char *filename = mf->names[mf->curr_frame];
if (filename)
stream = stream_open(filename, demuxer->opts);
}
if (stream) {
stream_seek(stream, 0);
bstr data = stream_read_complete(stream, NULL, MF_MAX_FILE_SIZE);
if (data.len) {
demux_packet_t *dp = new_demux_packet(data.len);
memcpy(dp->buffer, data.start, data.len);
dp->pts = mf->curr_frame / mf->sh->fps;
dp->keyframe = true;
demuxer_add_packet(demuxer, demuxer->streams[0], dp);
}
talloc_free(data.start);
}
if (stream && stream != entry_stream)
free_stream(stream);
mf->curr_frame++;
return 1;
}
static void encode_2pass_prepare(struct encode_lavc_context *ctx,
AVDictionary **dictp,
AVStream *stream,
AVCodecContext *codec,
struct stream **bytebuf,
const char *prefix)
{
if (!*bytebuf) {
char buf[sizeof(ctx->avc->filename) + 12];
AVDictionaryEntry *de = av_dict_get(ctx->voptions, "flags", NULL, 0);
snprintf(buf, sizeof(buf), "%s-%s-pass1.log", ctx->avc->filename,
prefix);
buf[sizeof(buf) - 1] = 0;
if (value_has_flag(de ? de->value : "", "pass2")) {
if (!(*bytebuf = stream_open(buf, ctx->global))) {
MP_WARN(ctx, "%s: could not open '%s', "
"disabling 2-pass encoding at pass 2\n", prefix, buf);
codec->flags &= ~AV_CODEC_FLAG_PASS2;
set_to_avdictionary(ctx, dictp, "flags", "-pass2");
} else {
struct bstr content = stream_read_complete(*bytebuf, NULL,
1000000000);
if (content.start == NULL) {
MP_WARN(ctx, "%s: could not read '%s', "
"disabling 2-pass encoding at pass 1\n",
prefix, ctx->avc->filename);
} else {
content.start[content.len] = 0;
codec->stats_in = content.start;
}
free_stream(*bytebuf);
*bytebuf = NULL;
}
}
if (value_has_flag(de ? de->value : "", "pass1")) {
if (!(*bytebuf = open_output_stream(buf, ctx->global))) {
MP_WARN(ctx,
"%s: could not open '%s', disabling "
"2-pass encoding at pass 1\n",
prefix, ctx->avc->filename);
set_to_avdictionary(ctx, dictp, "flags", "-pass1");
}
}
}
}
/* Returns a list of parts, or NULL on parse error.
* Syntax (without file header or URI prefix):
* url ::= <entry> ( (';' | '\n') <entry> )*
* entry ::= <param> ( <param> ',' )*
* param ::= [<string> '='] (<string> | '%' <number> '%' <bytes>)
*/
static struct tl_parts *parse_edl(bstr str)
{
struct tl_parts *tl = talloc_zero(NULL, struct tl_parts);
while (str.len) {
if (bstr_eatstart0(&str, "#"))
bstr_split_tok(str, "\n", &(bstr){0}, &str);
if (bstr_eatstart0(&str, "\n") || bstr_eatstart0(&str, ";"))
continue;
struct tl_part p = { .length = -1 };
int nparam = 0;
while (1) {
bstr name, val;
// Check if it's of the form "name=..."
int next = bstrcspn(str, "=%,;\n");
if (next > 0 && next < str.len && str.start[next] == '=') {
name = bstr_splice(str, 0, next);
str = bstr_cut(str, next + 1);
} else {
const char *names[] = {"file", "start", "length"}; // implied name
name = bstr0(nparam < 3 ? names[nparam] : "-");
}
if (bstr_eatstart0(&str, "%")) {
int len = bstrtoll(str, &str, 0);
if (!bstr_startswith0(str, "%") || (len > str.len - 1))
goto error;
val = bstr_splice(str, 1, len + 1);
str = bstr_cut(str, len + 1);
} else {
next = bstrcspn(str, ",;\n");
val = bstr_splice(str, 0, next);
str = bstr_cut(str, next);
}
// Interpret parameters. Explicitly ignore unknown ones.
if (bstr_equals0(name, "file")) {
p.filename = bstrto0(tl, val);
} else if (bstr_equals0(name, "start")) {
if (!parse_time(val, &p.offset))
goto error;
p.offset_set = true;
} else if (bstr_equals0(name, "length")) {
if (!parse_time(val, &p.length))
goto error;
} else if (bstr_equals0(name, "timestamps")) {
if (bstr_equals0(val, "chapters"))
p.chapter_ts = true;
}
nparam++;
if (!bstr_eatstart0(&str, ","))
break;
}
if (!p.filename)
goto error;
MP_TARRAY_APPEND(tl, tl->parts, tl->num_parts, p);
}
if (!tl->num_parts)
goto error;
return tl;
error:
talloc_free(tl);
return NULL;
}
static struct demuxer *open_source(struct timeline *tl, char *filename)
{
for (int n = 0; n < tl->num_sources; n++) {
struct demuxer *d = tl->sources[n];
if (strcmp(d->stream->url, filename) == 0)
return d;
}
struct demuxer *d = demux_open_url(filename, NULL, tl->cancel, tl->global);
if (d) {
MP_TARRAY_APPEND(tl, tl->sources, tl->num_sources, d);
} else {
MP_ERR(tl, "EDL: Could not open source file '%s'.\n", filename);
}
return d;
}
static double demuxer_chapter_time(struct demuxer *demuxer, int n)
{
if (n < 0 || n >= demuxer->num_chapters)
return -1;
return demuxer->chapters[n].pts;
}
// Append all chapters from src to the chapters array.
// Ignore chapters outside of the given time range.
static void copy_chapters(struct demux_chapter **chapters, int *num_chapters,
struct demuxer *src, double start, double len,
double dest_offset)
{
for (int n = 0; n < src->num_chapters; n++) {
double time = demuxer_chapter_time(src, n);
if (time >= start && time <= start + len) {
struct demux_chapter ch = {
.pts = dest_offset + time - start,
.metadata = mp_tags_dup(*chapters, src->chapters[n].metadata),
};
MP_TARRAY_APPEND(NULL, *chapters, *num_chapters, ch);
}
}
}
// return length of the source in seconds, or -1 if unknown
static double source_get_length(struct demuxer *demuxer)
{
double time;
// <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
if (demux_control(demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, &time) <= 0)
time = -1;
return time;
}
static void resolve_timestamps(struct tl_part *part, struct demuxer *demuxer)
{
if (part->chapter_ts) {
double start = demuxer_chapter_time(demuxer, part->offset);
double length = part->length;
double end = length;
if (end >= 0)
end = demuxer_chapter_time(demuxer, part->offset + part->length);
if (end >= 0 && start >= 0)
length = end - start;
part->offset = start;
part->length = length;
}
if (!part->offset_set)
part->offset = demuxer->start_time;
}
static void build_timeline(struct timeline *tl, struct tl_parts *parts)
{
tl->parts = talloc_array_ptrtype(tl, tl->parts, parts->num_parts + 1);
double starttime = 0;
for (int n = 0; n < parts->num_parts; n++) {
struct tl_part *part = &parts->parts[n];
struct demuxer *source = open_source(tl, part->filename);
if (!source)
goto error;
resolve_timestamps(part, source);
double end_time = source_get_length(source);
if (end_time >= 0)
end_time += source->start_time;
// Unknown length => use rest of the file. If duration is unknown, make
// something up.
if (part->length < 0) {
if (end_time < 0) {
MP_WARN(tl, "EDL: source file '%s' has unknown duration.\n",
part->filename);
end_time = 1;
}
part->length = end_time - part->offset;
} else if (end_time >= 0) {
double end_part = part->offset + part->length;
if (end_part > end_time) {
MP_WARN(tl, "EDL: entry %d uses %f "
"seconds, but file has only %f seconds.\n",
n, end_part, end_time);
}
}
// Add a chapter between each file.
struct demux_chapter ch = {
.pts = starttime,
.metadata = talloc_zero(tl, struct mp_tags),
};
mp_tags_set_str(ch.metadata, "title", part->filename);
MP_TARRAY_APPEND(tl, tl->chapters, tl->num_chapters, ch);
// Also copy the source file's chapters for the relevant parts
copy_chapters(&tl->chapters, &tl->num_chapters, source, part->offset,
part->length, starttime);
tl->parts[n] = (struct timeline_part) {
.start = starttime,
.source_start = part->offset,
.source = source,
};
starttime += part->length;
}
tl->parts[parts->num_parts] = (struct timeline_part) {.start = starttime};
tl->num_parts = parts->num_parts;
tl->track_layout = tl->parts[0].source;
return;
error:
tl->num_parts = 0;
tl->num_chapters = 0;
}
// For security, don't allow relative or absolute paths, only plain filenames.
// Also, make these filenames relative to the edl source file.
static void fix_filenames(struct tl_parts *parts, char *source_path)
{
struct bstr dirname = mp_dirname(source_path);
for (int n = 0; n < parts->num_parts; n++) {
struct tl_part *part = &parts->parts[n];
char *filename = mp_basename(part->filename); // plain filename only
part->filename = mp_path_join_bstr(parts, dirname, bstr0(filename));
}
}
static void build_mpv_edl_timeline(struct timeline *tl)
{
struct priv *p = tl->demuxer->priv;
struct tl_parts *parts = parse_edl(p->data);
if (!parts) {
MP_ERR(tl, "Error in EDL.\n");
return;
}
MP_TARRAY_APPEND(tl, tl->sources, tl->num_sources, tl->demuxer);
// Source is .edl and not edl:// => don't allow arbitrary paths
if (tl->demuxer->stream->uncached_type != STREAMTYPE_EDL)
fix_filenames(parts, tl->demuxer->filename);
build_timeline(tl, parts);
talloc_free(parts);
}
static int try_open_file(struct demuxer *demuxer, enum demux_check check)
{
struct priv *p = talloc_zero(demuxer, struct priv);
demuxer->priv = p;
demuxer->fully_read = true;
struct stream *s = demuxer->stream;
if (s->uncached_type == STREAMTYPE_EDL) {
p->data = bstr0(s->path);
return 0;
}
if (check >= DEMUX_CHECK_UNSAFE) {
if (!bstr_equals0(stream_peek(s, strlen(HEADER)), HEADER))
return -1;
}
p->data = stream_read_complete(s, demuxer, 1000000);
if (p->data.start == NULL)
return -1;
bstr_eatstart0(&p->data, HEADER);
return 0;
}
const struct demuxer_desc demuxer_desc_edl = {
.name = "edl",
.desc = "Edit decision list",
.open = try_open_file,
.load_timeline = build_mpv_edl_timeline,
};
int parse_codec_cfg(const char *cfgfile)
{
codecs_t *codec = NULL; // current codec
codecs_t **codecsp = NULL;// points to audio_codecs or to video_codecs
char *endptr; // strtoul()...
int *nr_codecsp;
int codec_type; /* TYPE_VIDEO/TYPE_AUDIO */
int tmp, i;
int codec_cfg_min;
for (struct bstr s = builtin_codecs_conf; ; bstr_getline(s, &s)) {
if (!s.len)
abort();
if (bstr_eatstart0(&s, "release ")) {
codec_cfg_min = atoi(s.start);
break;
}
}
// in case we call it a second time
codecs_uninit_free();
nr_vcodecs = 0;
nr_acodecs = 0;
if (cfgfile) {
// Avoid printing errors from open_stream when trying optional files
if (!mp_path_exists(cfgfile)) {
mp_tmsg(MSGT_CODECCFG, MSGL_V,
"No optional codecs config file: %s\n", cfgfile);
return 0;
}
mp_msg(MSGT_CODECCFG, MSGL_V, "Reading codec config file: %s\n",
cfgfile);
struct stream *s = open_stream(cfgfile, NULL, NULL);
if (!s)
return 0;
filetext = stream_read_complete(s, NULL, 10000000, 1);
free_stream(s);
if (!filetext.start)
return 0;
} else
// Parsing modifies the data
filetext = bstrdup(NULL, builtin_codecs_conf);
void *tmpmem = filetext.start;
read_nextline = 1;
/*
* this only catches release lines at the start of
* codecs.conf, before audiocodecs and videocodecs.
*/
while ((tmp = get_token(1, 1)) == RET_EOL)
/* NOTHING */;
if (tmp == RET_EOF)
goto out;
if (!strcmp(token[0], "release")) {
if (get_token(1, 2) < 0)
goto err_out_parse_error;
tmp = atoi(token[0]);
if (tmp < codec_cfg_min)
goto err_out_release_num;
codecs_conf_release = tmp;
while ((tmp = get_token(1, 1)) == RET_EOL)
/* NOTHING */;
if (tmp == RET_EOF)
goto out;
} else
goto err_out_release_num;
/*
* check if the next block starts with 'audiocodec' or
* with 'videocodec'
*/
if (!strcmp(token[0], "audiocodec") || !strcmp(token[0], "videocodec"))
goto loop_enter;
goto err_out_parse_error;
while ((tmp = get_token(1, 1)) != RET_EOF) {
if (tmp == RET_EOL)
continue;
if (!strcmp(token[0], "audiocodec") ||
!strcmp(token[0], "videocodec")) {
if (!validate_codec(codec, codec_type))
goto err_out_not_valid;
loop_enter:
if (*token[0] == 'v') {
codec_type = TYPE_VIDEO;
nr_codecsp = &nr_vcodecs;
codecsp = &video_codecs;
} else {
assert(*token[0] == 'a');
codec_type = TYPE_AUDIO;
nr_codecsp = &nr_acodecs;
codecsp = &audio_codecs;
}
if (!(*codecsp = realloc(*codecsp,
sizeof(codecs_t) * (*nr_codecsp + 2)))) {
mp_tmsg(MSGT_CODECCFG,MSGL_FATAL,"Can't realloc '*codecsp': %s\n", strerror(errno));
goto err_out;
}
codec=*codecsp + *nr_codecsp;
++*nr_codecsp;
memset(codec,0,sizeof(codecs_t));
memset(codec->fourcc, 0xff, sizeof(codec->fourcc));
memset(codec->outfmt, 0xff, sizeof(codec->outfmt));
memset(codec->infmt, 0xff, sizeof(codec->infmt));
if (get_token(1, 1) < 0)
goto err_out_parse_error;
for (i = 0; i < *nr_codecsp - 1; i++) {
if(( (*codecsp)[i].name!=NULL) &&
(!strcmp(token[0], (*codecsp)[i].name)) ) {
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Codec name '%s' isn't unique.", token[0]);
goto err_out_print_linenum;
}
}
if (!(codec->name = strdup(token[0]))) {
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'name': %s\n", strerror(errno));
goto err_out;
}
} else if (!strcmp(token[0], "info")) {
if (codec->info || get_token(1, 1) < 0)
goto err_out_parse_error;
if (!(codec->info = strdup(token[0]))) {
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'info': %s\n", strerror(errno));
goto err_out;
}
} else if (!strcmp(token[0], "comment")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
add_comment(token[0], &codec->comment);
} else if (!strcmp(token[0], "fourcc")) {
if (get_token(1, 2) < 0)
goto err_out_parse_error;
if (!add_to_fourcc(token[0], token[1],
codec->fourcc,
codec->fourccmap))
goto err_out_print_linenum;
} else if (!strcmp(token[0], "format")) {
if (get_token(1, 2) < 0)
goto err_out_parse_error;
if (!add_to_format(token[0], token[1],
codec->fourcc,codec->fourccmap))
goto err_out_print_linenum;
} else if (!strcmp(token[0], "driver")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
if (!(codec->drv = strdup(token[0]))) {
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'driver': %s\n", strerror(errno));
goto err_out;
}
} else if (!strcmp(token[0], "dll")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
if (!(codec->dll = strdup(token[0]))) {
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'dll': %s", strerror(errno));
goto err_out;
}
} else if (!strcmp(token[0], "guid")) {
if (get_token(11, 11) < 0)
goto err_out_parse_error;
codec->guid.f1=strtoul(token[0],&endptr,0);
if ((*endptr != ',' || *(endptr + 1) != '\0') &&
*endptr != '\0')
goto err_out_parse_error;
codec->guid.f2=strtoul(token[1],&endptr,0);
if ((*endptr != ',' || *(endptr + 1) != '\0') &&
*endptr != '\0')
goto err_out_parse_error;
codec->guid.f3=strtoul(token[2],&endptr,0);
if ((*endptr != ',' || *(endptr + 1) != '\0') &&
*endptr != '\0')
goto err_out_parse_error;
for (i = 0; i < 8; i++) {
codec->guid.f4[i]=strtoul(token[i + 3],&endptr,0);
if ((*endptr != ',' || *(endptr + 1) != '\0') &&
*endptr != '\0')
goto err_out_parse_error;
}
} else if (!strcmp(token[0], "out")) {
if (get_token(1, 2) < 0)
goto err_out_parse_error;
if (!add_to_inout(token[0], token[1], codec->outfmt,
codec->outflags))
goto err_out_print_linenum;
} else if (!strcmp(token[0], "in")) {
if (get_token(1, 2) < 0)
goto err_out_parse_error;
if (!add_to_inout(token[0], token[1], codec->infmt,
codec->inflags))
goto err_out_print_linenum;
} else if (!strcmp(token[0], "flags")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "seekable"))
codec->flags |= CODECS_FLAG_SEEKABLE;
else if (!strcmp(token[0], "align16"))
codec->flags |= CODECS_FLAG_ALIGN16;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "status")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
if (!strcasecmp(token[0], "working"))
codec->status = CODECS_STATUS_WORKING;
else if (!strcasecmp(token[0], "crashing"))
codec->status = CODECS_STATUS_NOT_WORKING;
else if (!strcasecmp(token[0], "untested"))
codec->status = CODECS_STATUS_UNTESTED;
else if (!strcasecmp(token[0], "buggy"))
codec->status = CODECS_STATUS_PROBLEMS;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "anyinput")) {
codec->anyinput = true;
} else
goto err_out_parse_error;
}
if (!validate_codec(codec, codec_type))
goto err_out_not_valid;
mp_tmsg(MSGT_CODECCFG, MSGL_V, "%d audio & %d video codecs\n", nr_acodecs,
nr_vcodecs);
if(video_codecs) video_codecs[nr_vcodecs].name = NULL;
if(audio_codecs) audio_codecs[nr_acodecs].name = NULL;
out:
talloc_free(tmpmem);
line=NULL;
return 1;
err_out_parse_error:
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error");
err_out_print_linenum:
PRINT_LINENUM;
err_out:
codecs_uninit_free();
talloc_free(tmpmem);
line=NULL;
line_num = 0;
return 0;
err_out_not_valid:
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Codec is not defined correctly.");
goto err_out_print_linenum;
err_out_release_num:
mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"This codecs.conf is too old and incompatible with this MPlayer release!");
goto err_out_print_linenum;
}
