22 #include "libavutil/avstring.h"
23 #include "libavutil/common.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/parseutils.h"
34 return rgba[0] | rgba[1] << 8 | rgba[2] << 16;
51 const char *
in,
int x1,
int y1,
int x2,
int y2)
53 char *param,
buffer[128], tmp[128];
54 int len, tag_close, sptr = 1, line_start = 1, an = 0,
end = 0;
62 if (x1 >= 0 && y1 >= 0) {
63 if (x2 >= 0 && y2 >= 0 && (x2 != x1 || y2 != y1))
65 "{\\an1}{\\move(%d,%d,%d,%d)}", x1, y1, x2, y2);
67 snprintf(out, out_end-out,
"{\\an1}{\\pos(%d,%d)}", x1, y1);
71 for (; out < out_end && !
end && *
in; in++) {
80 while (out[-1] ==
' ')
83 if(out<out_end) out += strlen(out);
93 an += sscanf(in,
"{\\an%*1u}%n", &len) >= 0 && len > 0;
94 if ((an != 1 && (len = 0, sscanf(in,
"{\\%*[^}]}%n", &len) >= 0 && len > 0)) ||
95 (len = 0, sscanf(in,
"{%*1[CcFfoPSsYy]:%*[^}]}%n", &len) >= 0 && len > 0)) {
101 tag_close = in[1] ==
'/';
103 if (sscanf(in+tag_close+1,
"%127[^>]>%n", buffer, &len) >= 1 && len > 0) {
104 if ((param = strchr(buffer,
' ')))
107 ( tag_close && sptr > 0 && !strcmp(stack[sptr-1].
tag, buffer))) {
108 int i, j, unknown = 0;
109 in += len + tag_close;
111 memset(stack+sptr, 0,
sizeof(*stack));
112 if (!strcmp(buffer,
"font")) {
115 if (stack[sptr-1].param[i][0])
116 for (j=sptr-2; j>=0; j--)
117 if (stack[j].param[i][0]) {
119 "%s", stack[j].param[i]);
120 if(out<out_end) out += strlen(out);
125 if (!strncmp(param,
"size=", 5)) {
127 param += 5 + (param[5] ==
'"');
128 if (sscanf(param,
"%u", &font_size) == 1) {
129 snprintf(stack[sptr].param[PARAM_SIZE],
130 sizeof(stack[0].param[PARAM_SIZE]),
131 "{\\fs%u}", font_size);
133 }
else if (!strncmp(param,
"color=", 6)) {
134 param += 6 + (param[6] ==
'"');
135 snprintf(stack[sptr].param[PARAM_COLOR],
136 sizeof(stack[0].param[PARAM_COLOR]),
139 }
else if (!strncmp(param,
"face=", 5)) {
140 param += 5 + (param[5] ==
'"');
142 param[-1] ==
'"' ?
"\"" :
" ");
144 FFMIN(
sizeof(tmp), len+1));
146 snprintf(stack[sptr].param[PARAM_FACE],
147 sizeof(stack[0].param[PARAM_FACE]),
150 if ((param = strchr(param,
' ')))
154 if (stack[sptr].param[i][0]) {
156 "%s", stack[sptr].param[i]);
157 if(out<out_end) out += strlen(out);
160 }
else if (!buffer[1] && strspn(buffer,
"bisu") == 1) {
162 "{\\%c%d}", buffer[0], !tag_close);
163 if(out<out_end) out += strlen(out);
166 snprintf(tmp,
sizeof(tmp),
"</%s>", buffer);
170 }
else if (unknown && !strstr(in, tmp)) {
171 in -= len + tag_close;
175 sizeof(stack[0].
tag));
183 if (*in !=
' ' && *in !=
'\r' && *in !=
'\n')
187 out =
FFMIN(out, out_end-3);
188 while (!strncmp(out-2,
"\\N", 2))
190 while (out[-1] ==
' ')
196 static const char *
read_ts(
const char *
buf,
int *ts_start,
int *ts_end,
197 int *x1,
int *y1,
int *x2,
int *y2)
199 int i, hs, ms, ss, he,
me, se;
201 for (i=0; i<2; i++) {
203 int c = sscanf(buf,
"%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d"
204 "%*[ ]X1:%u X2:%u Y1:%u Y2:%u",
205 &hs, &ms, &ss, ts_start, &he, &me, &se, ts_end,
207 buf += strcspn(buf,
"\n");
210 *ts_start = 100*(ss + 60*(ms + 60*hs)) + *ts_start/10;
211 *ts_end = 100*(se + 60*(me + 60*he)) + *ts_end /10;
222 int ts_start, ts_end, x1 = -1, y1 = -1, x2 = -1, y2 = -1;
224 const char *ptr = avpkt->
data;
229 if (p && size == 16) {
236 if (avpkt->
size <= 0)
239 while (ptr < end && *ptr) {
241 ptr =
read_ts(ptr, &ts_start, &ts_end, &x1, &y1, &x2, &y2);
258 *got_sub_ptr = sub->num_rects > 0;
262 #if CONFIG_SRT_DECODER
274 #if CONFIG_SUBRIP_DECODER
static const char * read_ts(const char *buf, int *ts_start, int *ts_end, int *x1, int *y1, int *x2, int *y2)
static const char * srt_to_ass(AVCodecContext *avctx, char *out, char *out_end, const char *in, int x1, int y1, int x2, int y2)
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
static av_cold int end(AVCodecContext *avctx)
int ff_ass_subtitle_header_default(AVCodecContext *avctx)
Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS with default style.
const char * name
Name of the codec implementation.
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const
Rescale a 64-bit integer by 2 rational numbers.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
static int html_color_parse(AVCodecContext *avctx, const char *str)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Libavcodec external API header.
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
int ff_ass_add_rect(AVSubtitle *sub, const char *dialog, int ts_start, int duration, int raw)
Add an ASS dialog line to an AVSubtitle as a new AVSubtitleRect.
#define FF_ARRAY_ELEMS(a)
uint8_t * av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
main external API structure.
rational number numerator/denominator
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
static int srt_decode_frame(AVCodecContext *avctx, void *data, int *got_sub_ptr, AVPacket *avpkt)
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...