76 #define LICENSE_PREFIX "libavformat license: " 80 #define RELATIVE_TS_BASE (INT64_MAX - (1LL<<48)) 98 timestamp < st->pts_wrap_reference)
116 #if FF_API_OLD_OPEN_CALLBACKS 155 if ( (src-> codec_whitelist && !dst-> codec_whitelist)
156 || (src-> format_whitelist && !dst-> format_whitelist)
167 #if FF_API_LAVF_AVCTX 169 if (st->codec->codec)
170 return st->codec->codec;
193 #if CONFIG_H264_DECODER 207 if (probe_codec->
id == codec_id &&
224 #define SANE_CHUNK_SIZE (50000000) 230 if (remaining < size) {
233 s->
maxsize = newsize - !newsize;
235 remaining=
FFMAX(remaining, 0);
238 if (s->
maxsize>= 0 && remaining+1 < size) {
250 int64_t orig_pos = pkt->
pos;
251 int orig_size = pkt->
size;
255 int prev_size = pkt->
size;
273 if (ret != read_size) {
286 return pkt->
size > orig_size ? pkt->
size - orig_size : ret;
316 static const struct {
343 "Probe with size=%d, packets=%d detected %s with score=%d\n",
346 for (i = 0; fmt_id_type[i].name; i++) {
347 if (!strcmp(fmt->
name, fmt_id_type[i].name)) {
357 #if FF_API_LAVF_AVCTX 408 "will be ignored with AVFMT_NOFILE format.\n");
444 (*plast_pktl)->next = pktl;
446 *packet_buffer = pktl;
461 "Attached picture on stream %d has invalid size, " 495 #if FF_API_LAVF_AVCTX 521 av_log(
NULL,
AV_LOG_ERROR,
"Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
537 if ((ret =
init_input(s, filename, &tmp)) < 0)
605 av_log(s, level,
"Discarding ID3 tags because more suitable tags were found.\n");
611 if (id3v2_extra_meta) {
687 "Failed to reallocate probe buffer for stream %d\n",
700 "nothing to probe for stream %d\n", st->
index);
728 int i, pts_wrap_behavior;
729 int64_t pts_wrap_reference;
747 if (!first_program) {
774 program = first_program;
823 if (!pktl || ret ==
AVERROR(EAGAIN))
846 "Dropped corrupted packet (stream = %d)\n",
916 #if FF_API_LAVF_AVCTX 933 }
else if (codec_framerate.
den * 1000LL > codec_framerate.
num) {
962 if (frame_size <= 0 || sample_rate <= 0)
987 #if CONFIG_H264_DECODER 1018 int64_t best_score = INT64_MAX;
1019 for (i = 0; i<delay; i++) {
1022 if (score < best_score) {
1024 dts = pts_buffer[i];
1029 for (i = 0; i<delay; i++) {
1031 int64_t
diff =
FFABS(pts_buffer[i] - dts)
1046 dts = pts_buffer[0];
1067 for (; pkt_buffer; pkt_buffer =
get_next_pkt(s, st, pkt_buffer)) {
1072 pts_buffer[0] = pkt_buffer->
pkt.
pts;
1073 for (i = 0; i<delay && pts_buffer[i] > pts_buffer[i + 1]; i++)
1074 FFSWAP(int64_t, pts_buffer[i], pts_buffer[i + 1]);
1104 for (pktl_it = pktl; pktl_it; pktl_it =
get_next_pkt(s, st, pktl_it)) {
1108 pktl_it->
pkt.
pts += shift;
1111 pktl_it->
pkt.
dts += shift;
1152 av_log(s,
AV_LOG_DEBUG,
"first_dts %s not matching first dts %s (pts %s, duration %"PRId64
") in the queue\n",
1189 int64_t next_dts, int64_t next_pts)
1191 int num, den, presentation_delayed, delay, i;
1206 "DTS %"PRIi64
" < %"PRIi64
" out of order\n",
1232 presentation_delayed = 0;
1238 presentation_delayed = 1;
1253 if (delay == 1 && pkt->
dts == pkt->
pts &&
1256 if ( strcmp(s->
iformat->
name,
"mov,mp4,m4a,3gp,3g2,mj2")
1291 presentation_delayed = 1;
1295 "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%"PRId64
" delay:%d onein_oneout:%d\n",
1301 if ((delay == 0 || (delay == 1 && pc)) &&
1303 if (presentation_delayed) {
1321 ((uint64_t)st->
cur_dts - (uint64_t)next_dts + 1) <= 2 &&
1322 next_dts != next_pts &&
1324 pkt->
pts = next_dts;
1369 #if FF_API_CONVERGENCE_DURATION 1381 *pkt_buf = pktl->
next;
1385 *pkt_buf_end =
NULL;
1399 int ret = 0, got_output = 0;
1410 while (size > 0 || (pkt == &
flush_pkt && got_output)) {
1412 int64_t next_pts = pkt->
pts;
1413 int64_t next_dts = pkt->
dts;
1417 &out_pkt.
data, &out_pkt.
size, data, size,
1426 got_output = !!out_pkt.
size;
1444 (
AVRational) { 1, st->internal->avctx->sample_rate },
1494 *pkt_buffer = pktl->
next;
1496 *pkt_buffer_end =
NULL;
1508 int ret = 0, i, got_packet = 0;
1538 av_log(s,
AV_LOG_DEBUG,
"Demuxer context update while decoder is open, closing and trying to re-open\n");
1553 #if FF_API_LAVF_AVCTX 1567 cur_pkt.
pts < cur_pkt.
dts) {
1569 "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1577 "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%"PRId64
", flags=%d\n",
1587 "%s, packets or times may be invalid.\n",
1638 int discard_padding = 0;
1643 int64_t end_sample = sample +
duration;
1645 sample < st->last_discard_sample)
1654 AV_WL32(p + 4, discard_padding);
1674 memcpy(dst_data, src_sd->
data, src_sd->
size);
1679 #if FF_API_LAVF_MERGE_SD 1681 if (!(s->
flags & AVFMT_FLAG_KEEP_SIDE_DATA))
1695 #if FF_API_LAVF_AVCTX 1701 "read_frame_internal stream=%d, pts=%s, dts=%s, " 1702 "size=%d, duration=%"PRId64
", flags=%d\n",
1749 last_dts = pktl->
pkt.
dts;
1777 if (pktl && ret !=
AVERROR(EAGAIN)) {
1826 int best_stream = 0;
1827 int best_score = INT_MIN;
1851 if (score > best_score) {
1923 int *nb_index_entries,
1924 unsigned int *index_entries_allocated_size,
1925 int64_t
pos, int64_t timestamp,
1931 if ((
unsigned) *nb_index_entries + 1 >= UINT_MAX /
sizeof(
AVIndexEntry))
1937 if (size < 0 || size > 0x3FFFFFFF)
1944 index_entries_allocated_size,
1945 (*nb_index_entries + 1) *
1950 *index_entries = entries;
1956 index = (*nb_index_entries)++;
1957 ie = &entries[
index];
1958 av_assert0(index == 0 || ie[-1].timestamp < timestamp);
1960 ie = &entries[
index];
1964 memmove(entries + index + 1, entries + index,
1966 (*nb_index_entries)++;
1967 }
else if (ie->
pos == pos && distance < ie->min_distance)
1987 timestamp, size, distance, flags);
1991 int64_t wanted_timestamp,
int flags)
2000 if (b && entries[b - 1].timestamp < wanted_timestamp)
2009 if (m == b && entries[m].timestamp >= wanted_timestamp) {
2016 if (timestamp >= wanted_timestamp)
2018 if (timestamp <= wanted_timestamp)
2024 while (m >= 0 && m < nb_entries &&
2028 if (m == nb_entries)
2036 int64_t pos_delta = 0;
2043 "Protocol name not provided, cannot determine if input is local or " 2044 "a network protocol, buffers and access patterns cannot be configured " 2045 "optimally without knowing the protocol\n");
2048 if (proto && !(strcmp(proto,
"file") && strcmp(proto,
"pipe") && strcmp(proto,
"cache")))
2051 for (ist1 = 0; ist1 < s->
nb_streams; ist1++) {
2053 for (ist2 = 0; ist2 < s->
nb_streams; ist2++) {
2068 if (e2_pts - e1_pts < time_tolerance)
2079 if (s->
pb->
buffer_size < pos_delta && pos_delta < (1<<24)) {
2085 if (skip < (1<<23)) {
2093 wanted_timestamp, flags);
2097 int64_t (*read_timestamp)(
struct AVFormatContext *,
int , int64_t *, int64_t ))
2099 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
2100 if (stream_index >= 0)
2106 int64_t target_ts,
int flags)
2110 int64_t ts_min, ts_max, ts;
2115 if (stream_index < 0)
2124 st = s->
streams[stream_index];
2132 index =
FFMAX(index, 0);
2154 " dts_max=%s\n", pos_max, pos_limit,
av_ts2str(ts_max));
2158 pos =
ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit,
2174 int64_t (*read_timestamp)(
struct AVFormatContext *,
int , int64_t *, int64_t ))
2176 int64_t step = 1024;
2177 int64_t limit, ts_max;
2179 int64_t pos_max = filesize - 1;
2182 pos_max =
FFMAX(0, (pos_max) - step);
2184 &pos_max, limit, read_timestamp);
2191 int64_t tmp_pos = pos_max + 1;
2193 &tmp_pos, INT64_MAX, read_timestamp);
2199 if (tmp_pos >= filesize)
2212 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
2213 int64_t ts_min, int64_t ts_max,
2214 int flags, int64_t *ts_ret,
2216 int64_t *, int64_t))
2227 ts_min =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2232 if (ts_min >= target_ts) {
2238 if ((ret =
ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
2240 pos_limit = pos_max;
2243 if (ts_max <= target_ts) {
2251 while (pos_min < pos_limit) {
2253 "pos_min=0x%"PRIx64
" pos_max=0x%"PRIx64
" dts_min=%s dts_max=%s\n",
2257 if (no_change == 0) {
2258 int64_t approximate_keyframe_distance = pos_max - pos_limit;
2260 pos =
av_rescale(target_ts - ts_min, pos_max - pos_min,
2262 pos_min - approximate_keyframe_distance;
2263 }
else if (no_change == 1) {
2265 pos = (pos_min + pos_limit) >> 1;
2273 else if (pos > pos_limit)
2284 " target:%s limit:%"PRId64
" start:%"PRId64
" noc:%d\n",
2285 pos_min, pos, pos_max,
2287 pos_limit, start_pos, no_change);
2292 if (target_ts <= ts) {
2293 pos_limit = start_pos - 1;
2297 if (target_ts >= ts) {
2307 ts_min =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2309 ts_max =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2318 int64_t pos,
int flags)
2320 int64_t pos_min, pos_max;
2327 else if (pos > pos_max)
2338 int64_t timestamp,
int flags)
2345 st = s->
streams[stream_index];
2349 if (index < 0 && st->nb_index_entries &&
2350 timestamp < st->index_entries[0].timestamp)
2353 if (index < 0 || index == st->nb_index_entries - 1) {
2371 }
while (read_status ==
AVERROR(EAGAIN));
2372 if (read_status < 0)
2380 av_log(s,
AV_LOG_ERROR,
"seek_frame_generic failed as this stream seems to contain no keyframes after the target timestamp, %d non keyframes found\n", nonkey);
2405 int64_t timestamp,
int flags)
2417 if (stream_index < 0) {
2419 if (stream_index < 0)
2422 st = s->
streams[stream_index];
2449 int64_t timestamp,
int flags)
2454 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2460 flags & ~AVSEEK_FLAG_BACKWARD);
2472 int64_t ts, int64_t max_ts,
int flags)
2474 if (min_ts > ts || max_ts < ts)
2476 if (stream_index < -1 || stream_index >= (
int)s->
nb_streams)
2487 if (stream_index == -1 && s->
nb_streams == 1) {
2494 time_base.
num * (int64_t)AV_TIME_BASE,
2516 if (ret<0 && ts != min_ts && max_ts != ts) {
2517 ret =
av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2563 int64_t
start_time, start_time1, start_time_text, end_time, end_time1, end_time_text;
2564 int64_t
duration, duration1, filesize;
2569 start_time = INT64_MAX;
2570 start_time_text = INT64_MAX;
2571 end_time = INT64_MIN;
2572 end_time_text = INT64_MIN;
2573 duration = INT64_MIN;
2580 if (start_time1 < start_time_text)
2581 start_time_text = start_time1;
2583 start_time =
FFMIN(start_time, start_time1);
2587 if (end_time1 !=
AV_NOPTS_VALUE && (end_time1 > 0 ? start_time1 <= INT64_MAX - end_time1 : start_time1 >= INT64_MIN - end_time1)) {
2588 end_time1 += start_time1;
2590 end_time_text =
FFMAX(end_time_text, end_time1);
2592 end_time =
FFMAX(end_time, end_time1);
2604 duration =
FFMAX(duration, duration1);
2607 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text <
AV_TIME_BASE))
2608 start_time = start_time_text;
2609 else if (start_time > start_time_text)
2612 if (end_time == INT64_MIN || (end_time < end_time_text && end_time_text - (uint64_t)end_time < AV_TIME_BASE)) {
2613 end_time = end_time_text;
2614 }
else if (end_time < end_time_text) {
2615 av_log(ic,
AV_LOG_VERBOSE,
"Ignoring outlier non primary stream endtime %f\n", end_time_text / (
float)AV_TIME_BASE);
2618 if (start_time != INT64_MAX) {
2620 if (end_time != INT64_MIN) {
2629 }
else if (end_time >= start_time && end_time - (uint64_t)start_time <= INT64_MAX) {
2630 duration =
FFMAX(duration, end_time - start_time);
2639 double bitrate = (double) filesize * 8.0 * AV_TIME_BASE /
2641 if (bitrate >= 0 && bitrate <= INT64_MAX)
2668 int i, show_warning = 0;
2673 int64_t bit_rate = 0;
2715 "Estimating duration from bitrate, this may be inaccurate\n");
2718 #define DURATION_MAX_READ_SIZE 250000LL 2719 #define DURATION_MAX_RETRY 6 2726 int num, den, read_size, i, ret;
2727 int found_duration = 0;
2741 "start time for stream %d is not set in estimate_timings_from_pts\n", i);
2754 is_end = found_duration;
2767 }
while (ret ==
AVERROR(EAGAIN));
2770 read_size += pkt->
size;
2827 av_log(ic,
AV_LOG_DEBUG,
"stream %d : no PTS found at end of file, duration not set\n", i);
2829 av_log(ic,
AV_LOG_DEBUG,
"stream %d : no TS found at start of file, duration not set\n", i);
2857 file_size =
FFMAX(0, file_size);
2884 (
double) st->start_time *
av_q2d(st->time_base),
2885 (
double) st->duration *
av_q2d(st->time_base));
2888 "format: start_time: %0.3f duration: %0.3f bitrate=%"PRId64
" kb/s\n",
2899 #define FAIL(errmsg) do { \ 2901 *errmsg_ptr = errmsg; \ 2907 FAIL(
"unknown codec");
2911 FAIL(
"unspecified frame size");
2914 FAIL(
"unspecified sample format");
2916 FAIL(
"unspecified sample rate");
2918 FAIL(
"unspecified number of channels");
2920 FAIL(
"no decodable DTS frames");
2924 FAIL(
"unspecified size");
2926 FAIL(
"unspecified pixel format");
2929 FAIL(
"no frame in rv30/40 and no sar");
2933 FAIL(
"unspecified size");
2948 int got_picture = 1, ret = 0;
2952 int do_skip_frame = 0;
2973 av_dict_set(options ? options : &thread_opt,
"threads",
"1", 0);
2976 ret =
avcodec_open2(avctx, codec, options ? options : &thread_opt);
2998 while ((pkt.
size > 0 || (!pkt.
data && got_picture)) &&
3018 &got_picture, &pkt);
3029 if (!pkt.
data && !got_picture)
3033 if (do_skip_frame) {
3055 if (tag == tags[i].tag)
3065 if (bps <= 0 || bps > 64)
3080 if (sflags & (1 << (bps - 1))) {
3124 for (i = 0; tags && tags[i]; i++) {
3127 if (codec_tags->
id ==
id) {
3128 *tag = codec_tags->
tag;
3140 for (i = 0; tags && tags[i]; i++) {
3151 int64_t max_time = 0;
3168 if (j != i && next_start > ch->
start && next_start < end)
3171 ch->
end = (end == INT64_MAX) ? ch->
start : end;
3178 return (i + 1) * 1001;
3182 return (i + 31) * 1001 * 12;
3186 return ((
const int[]) { 80, 120, 240})[i] * 1001 * 12;
3190 return ((
const int[]) { 24, 30, 60, 12, 15, 48 })[i] * 1000 * 12;
3257 && ts - (uint64_t)last < INT64_MAX) {
3271 double sdts = dts*framerate/(1001*12);
3272 for (j= 0; j<2; j++) {
3273 int64_t ticks =
llrint(sdts+j*0.5);
3274 double error= sdts - ticks + j*0.5;
3291 if (error0 > 0.04 && error1 > 0.04) {
3326 double best_error= 0.01;
3341 for (k= 0; k<2; k++) {
3346 if (error < best_error && best_error> 0.000000001) {
3355 if (num && (!ref_rate.
num || (
double)num/(12*1001) < 1.01 *
av_q2d(ref_rate)))
3377 int i,
count = 0, ret = 0, j;
3387 int64_t max_stream_analyze_duration;
3388 int64_t max_subtitle_analyze_duration;
3390 int eof_reached = 0;
3393 flush_codecs = probesize > 0;
3397 max_stream_analyze_duration = max_analyze_duration;
3398 max_subtitle_analyze_duration = max_analyze_duration;
3399 if (!max_analyze_duration) {
3400 max_stream_analyze_duration =
3410 av_log(ic,
AV_LOG_DEBUG,
"Before avformat_find_stream_info() pos: %"PRId64
" bytes read:%"PRId64
" seeks:%d nb_streams:%d\n",
3428 #if FF_API_LAVF_AVCTX 3448 "%s, packets or times may be invalid.\n",
3458 goto find_stream_info_err;
3466 av_dict_set(options ? &options[i] : &thread_opt,
"threads",
"1", 0);
3473 && codec && !avctx->
codec) {
3474 if (
avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
3476 "Failed to open codec in %s\n",__FUNCTION__);
3481 if (codec && !avctx->
codec)
3482 if (
avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
3484 "Failed to open codec in %s\n",__FUNCTION__);
3491 #if FF_API_R_FRAME_RATE 3500 int analyzed_all_streams;
3509 int fps_analyze_framecount = 20;
3518 fps_analyze_framecount *= 2;
3520 fps_analyze_framecount = 0;
3524 fps_analyze_framecount = 0;
3531 if (count < fps_analyze_framecount)
3544 analyzed_all_streams = 0;
3545 if (!missing_streams || !*missing_streams)
3547 analyzed_all_streams = 1;
3559 if (read_size >= probesize) {
3562 "Probe buffer size limit of %"PRId64
" bytes reached\n", probesize);
3569 "Stream #%d: not enough frames to estimate rate; " 3570 "consider increasing probesize\n", i);
3592 goto find_stream_info_err;
3597 read_size += pkt->
size;
3603 goto find_stream_info_err;
3612 "Non-increasing DTS in stream %d: packet %d with DTS " 3613 "%"PRId64
", packet %d with DTS %"PRId64
"\n",
3629 "DTS discontinuity in stream %d: packet %d with DTS " 3630 "%"PRId64
", packet %d with DTS %"PRId64
"\n",
3661 if (analyzed_all_streams) limit = max_analyze_duration;
3663 else limit = max_stream_analyze_duration;
3666 av_log(ic,
AV_LOG_VERBOSE,
"max_analyze_duration %"PRId64
" reached at %"PRId64
" microseconds st:%d\n",
3681 #if FF_API_R_FRAME_RATE 3708 (options && i < orig_nb_streams) ? &options[i] :
NULL);
3719 for (stream_index = 0; stream_index < ic->
nb_streams; stream_index++) {
3720 st = ic->
streams[stream_index];
3724 if (codec && !avctx->
codec) {
3728 if (
avcodec_open2(avctx, codec, (options && stream_index < orig_nb_streams) ? &options[stream_index] : &opts) < 0)
3730 "Failed to open codec in %s\n",__FUNCTION__);
3756 (options && i < orig_nb_streams)
3757 ? &options[i] :
NULL);
3762 "decoding for stream %d failed\n", st->
index);
3785 double best_error = 0.01;
3802 if (error < best_error) {
3804 best_fps = std_fps.
num;
3809 best_fps, 12 * 1001, INT_MAX);
3871 goto find_stream_info_err;
3877 "Could not find codec parameters for stream %d (%s): %s\n" 3878 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
3896 goto find_stream_info_err;
3904 #if FF_API_LAVF_AVCTX 3908 goto find_stream_info_err;
3918 if (st->codec->codec_tag !=
MKTAG(
't',
'm',
'c',
'd')) {
3926 if (!st->codec->subtitle_header)
3927 goto find_stream_info_err;
3930 st->codec->subtitle_header_size);
3943 find_stream_info_err:
3952 av_log(ic,
AV_LOG_DEBUG,
"After avformat_find_stream_info() pos: %"PRId64
" bytes read:%"PRId64
" seeks:%d frames:%d\n",
3975 int wanted_stream_nb,
int related_stream,
3976 AVCodec **decoder_ret,
int flags)
3980 unsigned *program =
NULL;
3983 if (related_stream >= 0 && wanted_stream_nb < 0) {
3991 int real_stream_index = program ? program[i] : i;
3996 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
3998 if (wanted_stream_nb != real_stream_index &&
4015 if ((best_multiframe > multiframe) ||
4016 (best_multiframe == multiframe && best_bitrate > bitrate) ||
4017 (best_multiframe == multiframe && best_bitrate == bitrate && best_count >=
count))
4020 best_bitrate = bitrate;
4021 best_multiframe = multiframe;
4022 ret = real_stream_index;
4024 if (program && i == nb_streams - 1 && ret < 0) {
4032 *decoder_ret = (
AVCodec*)best_decoder;
4144 #if FF_API_LAVF_AVCTX 4240 av_log(s,
AV_LOG_ERROR,
"Number of streams exceeds max_streams parameter (%d), see the documentation if you wish to increase it\n", s->
max_streams);
4257 #if FF_API_LAVF_AVCTX 4281 #if FF_API_LAVF_AVCTX 4284 st->codec->bit_rate = 0;
4314 #if FF_API_R_FRAME_RATE 4360 int64_t
start, int64_t
end,
const char *title)
4366 av_log(s,
AV_LOG_ERROR,
"Chapter end time %"PRId64
" before start %"PRId64
"\n", end, start);
4425 char *q, buf1[20],
c;
4426 int nd,
len, percentd_found;
4439 nd = nd * 10 + *p++ -
'0';
4452 snprintf(buf1,
sizeof(buf1),
"%0*d", nd, number);
4454 if ((q - buf + len) > buf_size - 1)
4456 memcpy(q, buf1, len);
4464 if ((q - buf) < buf_size - 1)
4468 if (!percentd_found)
4483 char *authorization,
int authorization_size,
4484 char *hostname,
int hostname_size,
4485 int *port_ptr,
char *path,
int path_size,
const char *url)
4487 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
4493 if (authorization_size > 0)
4494 authorization[0] = 0;
4495 if (hostname_size > 0)
4501 if ((p = strchr(url,
':'))) {
4515 ls = strchr(p,
'/');
4516 ls2 = strchr(p,
'?');
4520 ls =
FFMIN(ls, ls2);
4530 while ((at = strchr(p,
'@')) && at < ls) {
4532 FFMIN(authorization_size, at + 1 - at2));
4536 if (*p ==
'[' && (brk = strchr(p,
']')) && brk < ls) {
4539 FFMIN(hostname_size, brk - p));
4540 if (brk[1] ==
':' && port_ptr)
4541 *port_ptr = atoi(brk + 2);
4542 }
else if ((col = strchr(p,
':')) && col < ls) {
4544 FFMIN(col + 1 - p, hostname_size));
4546 *port_ptr = atoi(col + 1);
4549 FFMIN(ls + 1 - p, hostname_size));
4556 static const char hex_table_uc[16] = {
'0',
'1',
'2',
'3',
4559 'C',
'D',
'E',
'F' };
4560 static const char hex_table_lc[16] = {
'0',
'1',
'2',
'3',
4563 'c',
'd',
'e',
'f' };
4564 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
4566 for (i = 0; i <
s; i++) {
4567 buff[i * 2] = hex_table[src[i] >> 4];
4568 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
4585 if (c >=
'0' && c <=
'9')
4587 else if (c >=
'A' && c <=
'F')
4603 unsigned int pts_num,
unsigned int pts_den)
4607 if (new_tb.
num != pts_num)
4609 "st:%d removing common factor %d from timebase\n",
4613 "st:%d has too large timebase, reducing\n", s->
index);
4615 if (new_tb.
num <= 0 || new_tb.
den <= 0) {
4617 "Ignoring attempt to set invalid timebase %d/%d for st:%d\n",
4623 #if FF_API_LAVF_AVCTX 4635 const char *ptr = str;
4640 char *dest =
NULL, *dest_end;
4641 int key_len, dest_len = 0;
4644 while (*ptr && (
av_isspace(*ptr) || *ptr ==
','))
4651 if (!(ptr = strchr(key,
'=')))
4654 key_len = ptr - key;
4656 callback_get_buf(context, key, key_len, &dest, &dest_len);
4657 dest_end = dest + dest_len - 1;
4661 while (*ptr && *ptr !=
'\"') {
4665 if (dest && dest < dest_end)
4669 if (dest && dest < dest_end)
4677 for (; *ptr && !(
av_isspace(*ptr) || *ptr ==
','); ptr++)
4678 if (dest && dest < dest_end)
4699 unsigned int codec_tag;
4701 return ofmt->
query_codec(codec_id, std_compliance);
4749 if (channel_layout) {
4757 if (width || height) {
4764 bytestream_put_le32(&data, flags);
4766 bytestream_put_le32(&data, channels);
4768 bytestream_put_le64(&data, channel_layout);
4770 bytestream_put_le32(&data, sample_rate);
4771 if (width || height) {
4772 bytestream_put_le32(&data, width);
4773 bytestream_put_le32(&data, height);
4785 av_reduce(&stream_sample_aspect_ratio.
num, &stream_sample_aspect_ratio.
den,
4786 stream_sample_aspect_ratio.
num, stream_sample_aspect_ratio.
den, INT_MAX);
4787 if (stream_sample_aspect_ratio.
num <= 0 || stream_sample_aspect_ratio.
den <= 0)
4788 stream_sample_aspect_ratio = undef;
4790 av_reduce(&frame_sample_aspect_ratio.
num, &frame_sample_aspect_ratio.
den,
4791 frame_sample_aspect_ratio.
num, frame_sample_aspect_ratio.
den, INT_MAX);
4792 if (frame_sample_aspect_ratio.
num <= 0 || frame_sample_aspect_ratio.
den <= 0)
4793 frame_sample_aspect_ratio = undef;
4795 if (stream_sample_aspect_ratio.
num)
4796 return stream_sample_aspect_ratio;
4798 return frame_sample_aspect_ratio;
4807 if (avg_fr.
num > 0 && avg_fr.
den > 0 && fr.
num > 0 && fr.
den > 0 &&
4814 if ( codec_fr.
num > 0 && codec_fr.
den > 0 &&
4825 if (*spec <= '9' && *spec >=
'0')
4826 return strtol(spec,
NULL, 0) == st->
index;
4827 else if (*spec ==
'v' || *spec ==
'a' || *spec ==
's' || *spec ==
'd' ||
4828 *spec ==
't' || *spec ==
'V') {
4841 #if FF_API_LAVF_AVCTX 4853 if (*spec++ ==
':') {
4856 #if FF_API_LAVF_AVCTX 4859 || s->
streams[i]->codec->codec_type == type
4863 return i == st->
index;
4869 return i == st->
index;
4875 }
else if (*spec ==
'p' && *(spec + 1) ==
':') {
4879 prog_id = strtol(spec, &endptr, 0);
4884 if (*endptr++ ==
':') {
4885 int stream_idx = strtol(endptr,
NULL, 0);
4886 return stream_idx >= 0 &&
4896 }
else if (*spec ==
'#' ||
4897 (*spec ==
'i' && *(spec + 1) ==
':')) {
4900 spec += 1 + (*spec ==
'i');
4901 stream_id = strtol(spec, &endptr, 0);
4903 return stream_id == st->
id;
4904 }
else if (*spec ==
'm' && *(spec + 1) ==
':') {
4910 val = strchr(spec,
':');
4918 if (!val || !strcmp(tag->
value, val + 1))
4927 }
else if (*spec ==
'u') {
4929 #if FF_API_LAVF_AVCTX 4938 #if FF_API_LAVF_AVCTX 4939 val = val || (codec->sample_rate && codec->channels);
4950 #if FF_API_LAVF_AVCTX 4951 val = val || (codec->width && codec->height);
4967 #if FF_API_LAVF_AVCTX 4981 static const uint8_t avci100_1080p_extradata[] = {
4983 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4984 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
4985 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
4986 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
4987 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
4988 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
4989 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
4990 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
4991 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
4993 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
4996 static const uint8_t avci100_1080i_extradata[] = {
4998 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
4999 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
5000 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
5001 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
5002 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
5003 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
5004 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
5005 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
5006 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
5007 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
5008 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x20,
5010 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
5013 static const uint8_t avci50_1080p_extradata[] = {
5015 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
5016 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5017 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5018 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
5019 0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
5020 0x6e, 0x6c, 0xd3, 0x3c, 0x05, 0xa0, 0x22, 0x7e,
5021 0x5f, 0xfc, 0x00, 0x0c, 0x00, 0x13, 0x8c, 0x04,
5022 0x04, 0x05, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00,
5023 0x00, 0x03, 0x00, 0x32, 0x84, 0x00, 0x00, 0x00,
5025 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5028 static const uint8_t avci50_1080i_extradata[] = {
5030 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
5031 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5032 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5033 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
5034 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
5035 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
5036 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
5037 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
5038 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
5039 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
5040 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
5042 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5045 static const uint8_t avci100_720p_extradata[] = {
5047 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
5048 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
5049 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
5050 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
5051 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
5052 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
5053 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
5054 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
5055 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
5056 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
5058 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
5061 static const uint8_t avci50_720p_extradata[] = {
5063 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x20,
5064 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5065 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5066 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
5067 0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
5068 0x6e, 0x6c, 0xd3, 0x3c, 0x0f, 0x01, 0x6e, 0xff,
5069 0xc0, 0x00, 0xc0, 0x01, 0x38, 0xc0, 0x40, 0x40,
5070 0x50, 0x00, 0x00, 0x03, 0x00, 0x10, 0x00, 0x00,
5071 0x06, 0x48, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
5073 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5082 data = avci100_1080p_extradata;
5083 size =
sizeof(avci100_1080p_extradata);
5085 data = avci100_1080i_extradata;
5086 size =
sizeof(avci100_1080i_extradata);
5090 data = avci50_1080p_extradata;
5091 size =
sizeof(avci50_1080p_extradata);
5093 data = avci50_1080i_extradata;
5094 size =
sizeof(avci50_1080i_extradata);
5097 data = avci100_720p_extradata;
5098 size =
sizeof(avci100_720p_extradata);
5100 data = avci50_720p_extradata;
5101 size =
sizeof(avci50_720p_extradata);
5115 #if FF_API_NOCONST_GET_SIDE_DATA 5144 if (sd->
type == type) {
5219 const char * shorthand[2] = {
NULL};
5222 shorthand[0] = opt->
name;
5241 "Automatically inserted bitstream filter '%s'; args='%s'\n",
5242 name, args ? args :
"");
5260 memset(pkt, 0,
sizeof(*pkt));
5263 if(a == 0 && new_pkt.
data != pkt->
data) {
5266 memcpy(t, new_pkt.
data, new_pkt.
size);
5289 "Failed to open bitstream filter %s for stream %d with codec %s",
5324 int64_t parsed_timestamp;
5328 *timestamp = return_seconds ? parsed_timestamp / 1000000 : parsed_timestamp;
5409 if (!strcmp(ofmt->
name,
"avi")) {
5410 #if FF_API_R_FRAME_RATE 5416 || copy_tb == AVFMT_TBCF_R_FRAMERATE) {
5460 #if FF_API_LAVF_AVCTX unsigned int nb_chapters
Number of chapters in AVChapter array.
unsigned int max_index_size
Maximum amount of memory in bytes to use for the index of each stream.
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
int64_t probesize
Maximum size of the data read from input for determining the input container format.
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
void av_bsf_free(AVBSFContext **ctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
int64_t first_dts
Timestamp corresponding to the last dts sync point.
const struct AVCodec * codec
const char const char void * val
#define AV_CODEC_PROP_INTRA_ONLY
Codec uses only intra compression.
enum AVFieldOrder field_order
Video only.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
const AVClass * priv_class
A class for the private data, used to declare bitstream filter private AVOptions. ...
int64_t avio_size(AVIOContext *s)
Get the filesize.
AVCodecParameters * par_out
Parameters of the output stream.
void * av_realloc(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory.
static int shift(int a, int b)
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
int av_demuxer_open(AVFormatContext *ic)
char * recommended_encoder_configuration
String containing paris of key and values describing recommended encoder configuration.
This structure describes decoded (raw) audio or video data.
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
int coded_width
Bitstream width / height, may be different from width/height e.g.
enum AVDurationEstimationMethod duration_estimation_method
The duration field can be estimated through various ways, and this field can be used to know how the ...
int64_t start_skip_samples
If not 0, the number of samples that should be skipped from the start of the stream (the samples are ...
#define AV_LOG_WARNING
Something somehow does not look correct.
int64_t bit_rate
the average bitrate
int64_t pos
byte position in stream, -1 if unknown
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
int64_t pts_buffer[MAX_REORDER_DELAY+1]
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
Parse timestr and return in *time a corresponding number of microseconds.
int probe_packets
Number of packets to buffer for codec probing.
AVRational sample_aspect_ratio
Video only.
int width
Dimensions of the decoded video intended for presentation.
AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
Guess the sample aspect ratio of a frame, based on both the stream and the frame aspect ratio...
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
int64_t first_discard_sample
If not 0, the first audio sample that should be discarded from the stream.
attribute_deprecated int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)
Filter bitstream.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
const struct AVBitStreamFilter * filter
The bitstream filter this context is an instance of.
int64_t pts_wrap_reference
Internal data to check for wrapping of the time stamp.
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
void av_codec_set_pkt_timebase(AVCodecContext *avctx, AVRational val)
The bitstream filter state.
int index
stream index in AVFormatContext
#define ID3v2_DEFAULT_MAGIC
Default magic bytes for ID3v2 header: "ID3".
int avio_flags
avio flags, used to force AVIO_FLAG_DIRECT.
#define AV_EF_COMPLIANT
consider all spec non compliances as errors
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define AVIO_FLAG_READ
read-only
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
AVFormatInternal * internal
An opaque field for libavformat internal usage.
const AVBitStreamFilter * av_bsf_get_by_name(const char *name)
#define AVIO_FLAG_WRITE
write-only
int64_t bit_rate
Total stream bitrate in bit/s, 0 if not available.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
void ff_network_close(void)
int event_flags
Flags for the user to detect events happening on the file.
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
int(* split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define AV_CODEC_CAP_CHANNEL_CONF
Codec should fill in channel configuration and samplerate instead of container.
AVInputFormat * av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret)
Guess the file format.
int duration
Duration of the current frame.
AVPacketSideData * side_data
An array of side data that applies to the whole stream (i.e.
int ctx_flags
Flags signalling stream properties.
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)
Decode a subtitle message.
int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags)
int64_t maxsize
max filesize, used to limit allocations This field is internal to libavformat and access from outside...
void * priv_data
Opaque filter-specific private data.
int ff_id3v2_parse_apic(AVFormatContext *s, ID3v2ExtraMeta **extra_meta)
Create a stream for each APIC (attached picture) extracted from the ID3v2 header. ...
enum AVCodecID subtitle_codec_id
Forced subtitle codec_id.
This struct describes the properties of an encoded stream.
int av_bsf_init(AVBSFContext *ctx)
Prepare the filter for use, after all the parameters and options have been set.
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
int64_t last_dts_for_order_check
Internal data to analyze DTS and detect faulty mpeg streams.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
int av_codec_is_decoder(const AVCodec *codec)
enum AVAudioServiceType audio_service_type
Type of service that the audio stream conveys.
enum AVDiscard skip_frame
Skip decoding for selected frames.
int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx)
AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *frame)
Guess the frame rate, based on both the container and codec information.
unsigned int nb_stream_indexes
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx)
Allocate a context for a given bitstream filter.
int ff_network_inited_globally
int av_opt_set_from_string(void *ctx, const char *opts, const char *const *shorthand, const char *key_val_sep, const char *pairs_sep)
Parse the key-value pairs list in opts.
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int avpriv_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp)
Set a dictionary value to an ISO-8601 compliant timestamp string.
static int64_t start_time
enum AVSampleFormat sample_fmt
audio sample format
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Opaque data information usually continuous.
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
int ff_network_init(void)
attribute_deprecated int av_packet_merge_side_data(AVPacket *pkt)
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
timestamp utils, mostly useful for debugging/logging purposes
unsigned avformat_version(void)
Return the LIBAVFORMAT_VERSION_INT constant.
const char * avformat_license(void)
Return the libavformat license.
int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt, AVStream *ost, const AVStream *ist, enum AVTimebaseSource copy_tb)
Transfer internal timing information from one stream to another.
unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt)
Return a value representing the fourCC code associated to the pixel format pix_fmt, or 0 if no associated fourCC code can be found.
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
static av_cold int end(AVCodecContext *avctx)
int id
unique ID to identify the chapter
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
int id
Format-specific stream ID.
enum AVStreamParseType need_parsing
int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
Check if the stream st contained in s is matched by the stream specifier spec.
int nb_side_data
The number of elements in the AVStream.side_data array.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
uint8_t * av_stream_get_side_data(const AVStream *st, enum AVPacketSideDataType type, int *size)
Get side information from stream.
AVStream ** streams
A list of all streams in the file.
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
AVFormatContext * avformat_alloc_context(void)
Allocate an AVFormatContext.
int inject_global_side_data
Internal data to inject global side data.
const char * avformat_configuration(void)
Return the libavformat build-time configuration.
int64_t bytes_read
Bytes read statistic This field is internal to libavformat and access from outside is not allowed...
void av_codec_set_lowres(AVCodecContext *avctx, int val)
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
int flags
Flags modifying the (de)muxer behaviour.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
AVProgram * av_new_program(AVFormatContext *ac, int id)
char * protocol_whitelist
',' separated list of allowed protocols.
int avformat_network_init(void)
Do global initialization of network components.
int fps_probe_size
The number of frames used for determining the framerate in avformat_find_stream_info().
#define AVERROR_EOF
End of file.
#define AV_LOG_VERBOSE
Detailed information.
int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem)
Add an element to a dynamic array.
int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt, const char *url, void *logctx, unsigned int offset, unsigned int max_probe_size)
Probe a bytestream to determine the input format.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
enum AVDiscard discard
selects which program to discard and which to feed to the caller
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
const OptionDef options[]
struct AVBitStreamFilterContext * next
unsigned int * stream_index
enum AVCodecID video_codec_id
Forced video codec_id.
uint64_t channel_layout
Audio only.
int64_t rfps_duration_sum
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
unsigned int correct_ts_overflow
Correct single timestamp overflows.
struct AVOutputFormat * oformat
The output container format.
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
void av_buffer_default_free(void *opaque, uint8_t *data)
Default free callback, which calls av_free() on the buffer data.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type, int wanted_stream_nb, int related_stream, AVCodec **decoder_ret, int flags)
Find the "best" stream in the file.
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
AVRational av_stream_get_codec_timebase(const AVStream *st)
Get the internal codec timebase from a stream.
int avctx_inited
1 if avctx has been initialized with the values from the codec parameters
AVProgram * av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
Find the programs which belong to a given stream.
int max_ts_probe
Maximum number of packets to read while waiting for the first timestamp.
int format_probesize
number of bytes to read maximally to identify format.
AVCodecID
Identify the syntax and semantics of the bitstream.
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
int has_b_frames
Size of the frame reordering buffer in the decoder.
AVDictionary * metadata
Metadata that applies to the whole file.
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette...
int nb_decoded_frames
Number of internally decoded frames, used internally in libavformat, do not access its lifetime diffe...
int64_t pos
Byte position of currently parsed frame in stream.
void * av_opt_ptr(const AVClass *class, void *obj, const char *name)
Gets a pointer to the requested field in a struct.
int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp, int flags)
Get the index for a specific timestamp.
struct AVCodecParser * parser
#define MAKE_ACCESSORS(str, name, type, field)
int64_t pts_wrap_reference
reference dts for wrap detection
An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
int ffio_set_buf_size(AVIOContext *s, int buf_size)
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
unsigned int avpriv_toupper4(unsigned int x)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int64_t timestamp
Timestamp in AVStream.time_base units, preferably the time from which on correctly decoded frames are...
AVCodec * av_codec_next(const AVCodec *c)
If c is NULL, returns the first registered codec, if c is non-NULL, returns the next registered codec...
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
int avcodec_is_open(AVCodecContext *s)
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
int capabilities
Codec capabilities.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
int av_read_play(AVFormatContext *s)
Start playing a network-based stream (e.g.
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
preferred ID for decoding MPEG audio layer 1, 2 or 3
enum AVMediaType codec_type
General type of the encoded data.
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta)
Free memory allocated parsing special (non-text) metadata.
Round to nearest and halfway cases away from zero.
AVRational time_base_in
The timebase used for the timestamps of the input packets.
simple assert() macros that are a bit more flexible than ISO C assert().
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
const AVOption * av_opt_next(const void *obj, const AVOption *last)
Iterate over all AVOptions belonging to obj.
const char * protocol_whitelist
',' separated list of allowed protocols.
enum AVPacketSideDataType type
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
const char * name
Name of the codec implementation.
int av_match_name(const char *name, const char *names)
Match instances of a name in a comma-separated list of names.
AVBufferRef * av_buffer_create(uint8_t *data, int size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
#define AV_FRAME_FILENAME_FLAGS_MULTIPLE
Allow multiple d.
int skip_samples
Number of samples to skip at the start of the frame decoded from the next packet. ...
void * av_memdup(const void *p, size_t size)
Duplicate a buffer with av_malloc().
AVRational avg_frame_rate
Average framerate.
New fields can be added to the end with minor version bumps.
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters in...
static void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
AVInputFormat * av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
Guess the file format.
int min_distance
Minimum distance between this and the previous keyframe, used to avoid unneeded searching.
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.
const char * protocol_blacklist
',' separated list of disallowed protocols.
AVCodec * audio_codec
Forced audio codec.
int flags
A combination of AV_PKT_FLAG values.
int av_codec_get_lowres(const AVCodecContext *avctx)
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
uint64_t channel_layout
Audio channel layout.
int extradata_size
Size of the extradata content in bytes.
int seek_count
seek statistic This field is internal to libavformat and access from outside is not allowed...
char * format_whitelist
',' separated list of allowed demuxers.
static AVPacket flush_pkt
int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
Test if the given container can store a codec.
static float distance(float x, float y, int band)
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
AVBSFContext ** bsfcs
bitstream filters to run on stream
int64_t fps_first_dts
Those are used for average framerate estimation.
int av_read_pause(AVFormatContext *s)
Pause a network-based stream (e.g.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
char filename[1024]
input or output filename
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
int update_initial_durations_done
Internal data to prevent doing update_initial_durations() twice.
#define AV_TIME_BASE
Internal time base represented as integer.
enum AVCodecID audio_codec_id
Forced audio codec_id.
int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type, uint8_t *data, size_t size)
Wrap an existing array as stream side data.
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
#define AV_OPT_SEARCH_CHILDREN
Search in possible children of the given object first.
int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts, int64_t pos)
Parse a packet.
static const chunk_decoder decoder[8]
int max_streams
The maximum number of streams.
int width
picture width / height.
int64_t offset
byte offset from starting packet start
AVRational time_base_out
The timebase used for the timestamps of the output packets.
int av_find_default_stream_index(AVFormatContext *s)
const char AVS_Value args
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
void av_parser_close(AVCodecParserContext *s)
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
#define AVERROR_BSF_NOT_FOUND
Bitstream filter not found.
#define AV_EF_EXPLODE
abort decoding on minor error detection
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
uint8_t * av_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type, int size)
Allocate new information from stream.
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
int probe_score
format probing score.
Usually treated as AVMEDIA_TYPE_DATA.
Opaque data information usually sparse.
int64_t skip_initial_bytes
Skip initial bytes when opening stream.
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
int buffer_size
Maximum buffer size.
preferred ID for MPEG-1/2 video decoding
static void error(const char *err)
int64_t max_analyze_duration
Maximum duration (in AV_TIME_BASE units) of the data read from input in avformat_find_stream_info().
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
int av_get_frame_filename(char *buf, int buf_size, const char *path, int number)
uint8_t pts_reorder_error_count[MAX_REORDER_DELAY+1]
int64_t av_gettime(void)
Get the current time in microseconds.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
int64_t end
chapter start/end time in time_base units
int avformat_queue_attached_pictures(AVFormatContext *s)
int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
int avformat_network_deinit(void)
Undo the initialization done by avformat_network_init.
int frame_size
Number of samples per channel in an audio frame.
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
#define AV_LOG_INFO
Standard information.
int64_t pts_reorder_error[MAX_REORDER_DELAY+1]
Internal data to generate dts from pts.
AVCodecParserContext * av_parser_init(int codec_id)
char * av_strdup(const char *s)
Duplicate a string.
AVStreamInternal * internal
An opaque field for libavformat internal usage.
enum AVMediaType codec_type
struct AVStream::@196 * info
int ff_check_interrupt(AVIOInterruptCB *cb)
Check if the user has requested to interrupt a blocking function associated with cb.
int debug
Flags to enable debugging.
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
int sample_rate
samples per second
AVIOContext * pb
I/O context.
main external API structure.
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
int io_repositioned
IO repositioned flag.
int av_filename_number_test(const char *filename)
Check whether filename actually is a numbered sequence generator.
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
void(* io_close)(struct AVFormatContext *s, AVIOContext *pb)
A callback for closing the streams opened with AVFormatContext.io_open().
int av_get_frame_filename2(char *buf, int buf_size, const char *path, int number, int flags)
Return in 'buf' the path with 'd' replaced by a number.
int pts_wrap_behavior
behavior on wrap detection
double(* duration_error)[2][MAX_STD_TIMEBASES]
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
static const char * format
Describe the class of an AVClass context structure.
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Rational number (pair of numerator and denominator).
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
AVRational display_aspect_ratio
display aspect ratio (0 if unknown)
Recommmends skipping the specified number of samples.
int need_context_update
Whether the internal avctx needs to be updated from codecpar (after a late change to codecpar) ...
const AVClass * av_class
A class for logging and AVOptions.
int short_seek_threshold
Threshold to favor readahead over seek.
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
int found_decoder
0 -> decoder has not been searched for yet.
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
This structure contains the data a format has to probe a file.
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
Return the next frame of a stream.
AVTimebaseSource
Apply a list of bitstream filters to a packet.
int avio_pause(AVIOContext *h, int pause)
Pause and resume playing - only meaningful if using a network streaming protocol (e.g.
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
Seek to timestamp ts.
attribute_deprecated int64_t convergence_duration
This struct describes the properties of a single codec described by an AVCodecID. ...
int seek2any
Force seeking to any (also non key) frames.
const char * avio_find_protocol_name(const char *url)
Return the name of the protocol that will handle the passed URL.
int64_t codec_info_duration
AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
int64_t start_time
Position of the first frame of the component, in AV_TIME_BASE fractional seconds. ...
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_YASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
Seek to the keyframe at timestamp.
int64_t duration
Decoding: duration of the stream, in stream time base.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
int sample_rate
Audio only.
AVPacketSideData * side_data
Additional packet data that can be provided by the container.
attribute_deprecated int64_t convergence_duration
void av_opt_free(void *obj)
Free all allocated objects in obj.
#define FF_DISABLE_DEPRECATION_WARNINGS
common internal api header.
struct AVPacketList * next
static int ref[MAX_W *MAX_W]
int pts_wrap_behavior
Options for behavior, when a wrap is detected.
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
Read packets of a media file to get stream information.
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base...
int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc)
Add a value to a timestamp.
AVCodec * video_codec
Forced video codec.
int error_recognition
Error recognition; higher values will detect more errors but may misdetect some more or less valid pa...
static AVCodecContext * dec_ctx
int disposition
AV_DISPOSITION_* bit field.
enum AVCodecID orig_codec_id
int pts_wrap_bits
number of bits in pts (used for wrapping control)
AVRational time_base
time base in which the start/end timestamps are specified
#define PARSER_FLAG_COMPLETE_FRAMES
int av_grow_packet(AVPacket *pkt, int grow_by)
Increase packet size, correctly zeroing padding.
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
int64_t nb_frames
number of frames in this stream if known or 0
#define AV_PKT_FLAG_CORRUPT
The packet content is corrupted.
struct AVInputFormat * iformat
The input container format.
void avformat_close_input(AVFormatContext **ps)
Close an opened input AVFormatContext.
#define FFMPEG_CONFIGURATION
int64_t codec_info_duration_fields
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Flag telling rescaling functions to pass INT64_MIN/MAX through unchanged, avoiding special cases for ...
unsigned int index_entries_allocated_size
#define AVERROR_DECODER_NOT_FOUND
Decoder not found.
int skip_to_keyframe
Indicates that everything up to the next keyframe should be discarded.
static av_always_inline int diff(const uint32_t a, const uint32_t b)
enum AVCodecID data_codec_id
Forced Data codec_id.
void ff_id3v2_read_dict(AVIOContext *pb, AVDictionary **metadata, const char *magic, ID3v2ExtraMeta **extra_meta)
Read an ID3v2 tag into specified dictionary and retrieve supported extra metadata.
AVCodec * subtitle_codec
Forced subtitle codec.
#define FF_ENABLE_DEPRECATION_WARNINGS
#define av_ts2str(ts)
Convenience macro, the return value should be used only directly in function arguments but never stan...
int channels
number of audio channels
char * codec_whitelist
',' separated list of allowed decoders.
struct AVCodecParserContext * parser
int format
The format of the coded data, corresponds to enum AVPixelFormat for video and for enum AVSampleFormat...
void * priv_data
Format private data.
int codec_info_nb_frames
Number of frames that have been demuxed during avformat_find_stream_info()
const struct PixelFormatTag * avpriv_get_raw_pix_fmt_tags(void)
#define AV_CODEC_CAP_AVOID_PROBING
Decoder is not a preferred choice for probing.
#define AVERROR_STREAM_NOT_FOUND
Stream not found.
int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
Open an input stream and read the header.
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
AVCodecContext * avctx
The codec context used by avformat_find_stream_info, the parser, etc.
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
const struct AVBitStreamFilter * filter
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
char * protocol_blacklist
',' separated list of disallowed protocols.
int repeat_pict
This field is used for proper frame duration computation in lavf.
int64_t duration
Duration of the stream, in AV_TIME_BASE fractional seconds.
int avformat_flush(AVFormatContext *s)
Discard all internally buffered data.
unbuffered private I/O API
AVCodecParameters * codecpar
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq, enum AVRounding rnd)
Rescale a 64-bit integer by 2 rational numbers with specified rounding.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
#define FFSWAP(type, a, b)
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
#define MKTAG(a, b, c, d)
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
AVRational r_frame_rate
Real base framerate of the stream.
int request_probe
stream probing state -1 -> probing finished 0 -> no probing requested rest -> perform probing with re...
int use_wallclock_as_timestamps
forces the use of wallclock timestamps as pts/dts of packets This has undefined results in the presen...
This structure stores compressed data.
int avio_closep(AVIOContext **s)
Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...
AVCodecParameters * par_in
Parameters of the input stream.
int key_frame
Set by parser to 1 for key frames and 0 for non-key frames.
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
char * av_strndup(const char *s, size_t len)
Duplicate a substring of a string.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
AVPacket attached_pic
For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet will contain the attached pictu...
#define AV_NOPTS_VALUE
Undefined timestamp value.
#define PARSER_FLAG_USE_CODEC_TS
int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod)
Compare the remainders of two integer operands divided by a common divisor.
uint8_t * subtitle_header
Header containing style information for text subtitles.