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) 231 if (remaining < size) {
234 s->
maxsize = newsize - !newsize;
241 if (s->
maxsize>= 0 && remaining+1 < size) {
253 int64_t orig_pos = pkt->
pos;
254 int orig_size = pkt->
size;
258 int prev_size = pkt->
size;
276 if (ret != read_size) {
289 return pkt->
size > orig_size ? pkt->
size - orig_size : ret;
319 static const struct {
346 "Probe with size=%d, packets=%d detected %s with score=%d\n",
349 for (i = 0; fmt_id_type[i].name; i++) {
350 if (!strcmp(fmt->
name, fmt_id_type[i].name)) {
360 #if FF_API_LAVF_AVCTX 411 "will be ignored with AVFMT_NOFILE format.\n");
447 (*plast_pktl)->next = pktl;
449 *packet_buffer = pktl;
464 "Attached picture on stream %d has invalid size, " 498 #if FF_API_LAVF_AVCTX 524 av_log(
NULL,
AV_LOG_ERROR,
"Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
540 if ((ret =
init_input(s, filename, &tmp)) < 0)
608 av_log(s, level,
"Discarding ID3 tags because more suitable tags were found.\n");
616 if (id3v2_extra_meta) {
697 "Failed to reallocate probe buffer for stream %d\n",
710 "nothing to probe for stream %d\n", st->
index);
738 int i, pts_wrap_behavior;
739 int64_t pts_wrap_reference;
757 if (!first_program) {
784 program = first_program;
833 if (!pktl || ret ==
AVERROR(EAGAIN))
856 "Dropped corrupted packet (stream = %d)\n",
927 #if FF_API_LAVF_AVCTX 944 }
else if (codec_framerate.
den * 1000LL > codec_framerate.
num) {
973 if (frame_size <= 0 || sample_rate <= 0)
998 #if CONFIG_H264_DECODER 1029 int64_t best_score = INT64_MAX;
1030 for (i = 0; i<delay; i++) {
1033 if (score < best_score) {
1035 dts = pts_buffer[i];
1040 for (i = 0; i<delay; i++) {
1042 int64_t
diff =
FFABS(pts_buffer[i] - dts)
1057 dts = pts_buffer[0];
1078 for (; pkt_buffer; pkt_buffer =
get_next_pkt(s, st, pkt_buffer)) {
1083 pts_buffer[0] = pkt_buffer->
pkt.
pts;
1084 for (i = 0; i<delay && pts_buffer[i] > pts_buffer[i + 1]; i++)
1085 FFSWAP(int64_t, pts_buffer[i], pts_buffer[i + 1]);
1116 for (pktl_it = pktl; pktl_it; pktl_it =
get_next_pkt(s, st, pktl_it)) {
1120 pktl_it->
pkt.
pts += shift;
1123 pktl_it->
pkt.
dts += shift;
1164 av_log(s,
AV_LOG_DEBUG,
"first_dts %s not matching first dts %s (pts %s, duration %"PRId64
") in the queue\n",
1201 int64_t next_dts, int64_t next_pts)
1203 int num, den, presentation_delayed, delay, i;
1218 "DTS %"PRIi64
" < %"PRIi64
" out of order\n",
1244 presentation_delayed = 0;
1250 presentation_delayed = 1;
1265 if (delay == 1 && pkt->
dts == pkt->
pts &&
1268 if ( strcmp(s->
iformat->
name,
"mov,mp4,m4a,3gp,3g2,mj2")
1303 presentation_delayed = 1;
1307 "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%"PRId64
" delay:%d onein_oneout:%d\n",
1313 if ((delay == 0 || (delay == 1 && pc)) &&
1315 if (presentation_delayed) {
1333 ((uint64_t)st->
cur_dts - (uint64_t)next_dts + 1) <= 2 &&
1334 next_dts != next_pts &&
1336 pkt->
pts = next_dts;
1338 if ((uint64_t)pkt->
duration <= INT32_MAX)
1382 #if FF_API_CONVERGENCE_DURATION 1394 *pkt_buf = pktl->
next;
1398 *pkt_buf_end =
NULL;
1412 int ret = 0, got_output = 0;
1423 while (size > 0 || (pkt == &
flush_pkt && got_output)) {
1425 int64_t next_pts = pkt->
pts;
1426 int64_t next_dts = pkt->
dts;
1430 &out_pkt.
data, &out_pkt.
size, data, size,
1439 got_output = !!out_pkt.
size;
1457 (
AVRational) { 1, st->internal->avctx->sample_rate },
1507 *pkt_buffer = pktl->
next;
1509 *pkt_buffer_end =
NULL;
1521 int ret = 0, i, got_packet = 0;
1551 av_log(s,
AV_LOG_DEBUG,
"Demuxer context update while decoder is open, closing and trying to re-open\n");
1566 #if FF_API_LAVF_AVCTX 1580 cur_pkt.
pts < cur_pkt.
dts) {
1582 "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
1590 "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%"PRId64
", flags=%d\n",
1600 "%s, packets or times may be invalid.\n",
1651 int discard_padding = 0;
1656 int64_t end_sample = sample +
duration;
1658 sample < st->last_discard_sample)
1667 AV_WL32(p + 4, discard_padding);
1687 memcpy(dst_data, src_sd->
data, src_sd->
size);
1692 #if FF_API_LAVF_MERGE_SD 1694 if (!(s->
flags & AVFMT_FLAG_KEEP_SIDE_DATA))
1708 #if FF_API_LAVF_AVCTX 1714 "read_frame_internal stream=%d, pts=%s, dts=%s, " 1715 "size=%d, duration=%"PRId64
", flags=%d\n",
1762 last_dts = pktl->
pkt.
dts;
1790 if (pktl && ret !=
AVERROR(EAGAIN)) {
1839 int best_stream = 0;
1840 int best_score = INT_MIN;
1864 if (score > best_score) {
1936 int *nb_index_entries,
1937 unsigned int *index_entries_allocated_size,
1938 int64_t
pos, int64_t timestamp,
1944 if ((
unsigned) *nb_index_entries + 1 >= UINT_MAX /
sizeof(
AVIndexEntry))
1950 if (size < 0 || size > 0x3FFFFFFF)
1957 index_entries_allocated_size,
1958 (*nb_index_entries + 1) *
1963 *index_entries = entries;
1969 index = (*nb_index_entries)++;
1970 ie = &entries[
index];
1971 av_assert0(index == 0 || ie[-1].timestamp < timestamp);
1973 ie = &entries[
index];
1977 memmove(entries + index + 1, entries + index,
1979 (*nb_index_entries)++;
1980 }
else if (ie->
pos == pos && distance < ie->min_distance)
2000 timestamp, size, distance, flags);
2004 int64_t wanted_timestamp,
int flags)
2013 if (b && entries[b - 1].timestamp < wanted_timestamp)
2022 if (m == b && entries[m].timestamp >= wanted_timestamp) {
2029 if (timestamp >= wanted_timestamp)
2031 if (timestamp <= wanted_timestamp)
2037 while (m >= 0 && m < nb_entries &&
2041 if (m == nb_entries)
2049 int64_t pos_delta = 0;
2058 "Protocol name not provided, cannot determine if input is local or " 2059 "a network protocol, buffers and access patterns cannot be configured " 2060 "optimally without knowing the protocol\n");
2063 if (proto && !(strcmp(proto,
"file") && strcmp(proto,
"pipe") && strcmp(proto,
"cache")))
2066 for (ist1 = 0; ist1 < s->
nb_streams; ist1++) {
2068 for (ist2 = 0; ist2 < s->
nb_streams; ist2++) {
2083 if (e2_pts < e1_pts || e2_pts - (uint64_t)e1_pts < time_tolerance)
2094 if (s->
pb->
buffer_size < pos_delta && pos_delta < (1<<24)) {
2100 if (skip < (1<<23)) {
2108 wanted_timestamp, flags);
2112 int64_t (*read_timestamp)(
struct AVFormatContext *,
int , int64_t *, int64_t ))
2114 int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit);
2115 if (stream_index >= 0)
2121 int64_t target_ts,
int flags)
2125 int64_t ts_min, ts_max, ts;
2130 if (stream_index < 0)
2139 st = s->
streams[stream_index];
2147 index =
FFMAX(index, 0);
2169 " dts_max=%s\n", pos_max, pos_limit,
av_ts2str(ts_max));
2173 pos =
ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit,
2189 int64_t (*read_timestamp)(
struct AVFormatContext *,
int , int64_t *, int64_t ))
2191 int64_t step = 1024;
2192 int64_t limit, ts_max;
2194 int64_t pos_max = filesize - 1;
2197 pos_max =
FFMAX(0, (pos_max) - step);
2199 &pos_max, limit, read_timestamp);
2206 int64_t tmp_pos = pos_max + 1;
2208 &tmp_pos, INT64_MAX, read_timestamp);
2214 if (tmp_pos >= filesize)
2227 int64_t pos_min, int64_t pos_max, int64_t pos_limit,
2228 int64_t ts_min, int64_t ts_max,
2229 int flags, int64_t *ts_ret,
2231 int64_t *, int64_t))
2242 ts_min =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2247 if (ts_min >= target_ts) {
2253 if ((ret =
ff_find_last_ts(s, stream_index, &ts_max, &pos_max, read_timestamp)) < 0)
2255 pos_limit = pos_max;
2258 if (ts_max <= target_ts) {
2266 while (pos_min < pos_limit) {
2268 "pos_min=0x%"PRIx64
" pos_max=0x%"PRIx64
" dts_min=%s dts_max=%s\n",
2272 if (no_change == 0) {
2273 int64_t approximate_keyframe_distance = pos_max - pos_limit;
2275 pos =
av_rescale(target_ts - ts_min, pos_max - pos_min,
2277 pos_min - approximate_keyframe_distance;
2278 }
else if (no_change == 1) {
2280 pos = (pos_min + pos_limit) >> 1;
2288 else if (pos > pos_limit)
2299 " target:%s limit:%"PRId64
" start:%"PRId64
" noc:%d\n",
2300 pos_min, pos, pos_max,
2302 pos_limit, start_pos, no_change);
2307 if (target_ts <= ts) {
2308 pos_limit = start_pos - 1;
2312 if (target_ts >= ts) {
2322 ts_min =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2324 ts_max =
ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
2333 int64_t pos,
int flags)
2335 int64_t pos_min, pos_max;
2342 else if (pos > pos_max)
2353 int64_t timestamp,
int flags)
2360 st = s->
streams[stream_index];
2364 if (index < 0 && st->nb_index_entries &&
2365 timestamp < st->index_entries[0].timestamp)
2368 if (index < 0 || index == st->nb_index_entries - 1) {
2386 }
while (read_status ==
AVERROR(EAGAIN));
2387 if (read_status < 0)
2395 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);
2420 int64_t timestamp,
int flags)
2432 if (stream_index < 0) {
2434 if (stream_index < 0)
2437 st = s->
streams[stream_index];
2464 int64_t timestamp,
int flags)
2469 int64_t min_ts = INT64_MIN, max_ts = INT64_MAX;
2475 flags & ~AVSEEK_FLAG_BACKWARD);
2487 int64_t ts, int64_t max_ts,
int flags)
2489 if (min_ts > ts || max_ts < ts)
2491 if (stream_index < -1 || stream_index >= (
int)s->
nb_streams)
2502 if (stream_index == -1 && s->
nb_streams == 1) {
2509 time_base.
num * (int64_t)AV_TIME_BASE,
2531 if (ret<0 && ts != min_ts && max_ts != ts) {
2532 ret =
av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
2578 int64_t
start_time, start_time1, start_time_text, end_time, end_time1, end_time_text;
2579 int64_t
duration, duration1, filesize;
2584 start_time = INT64_MAX;
2585 start_time_text = INT64_MAX;
2586 end_time = INT64_MIN;
2587 end_time_text = INT64_MIN;
2588 duration = INT64_MIN;
2595 if (start_time1 < start_time_text)
2596 start_time_text = start_time1;
2598 start_time =
FFMIN(start_time, start_time1);
2602 if (end_time1 !=
AV_NOPTS_VALUE && (end_time1 > 0 ? start_time1 <= INT64_MAX - end_time1 : start_time1 >= INT64_MIN - end_time1)) {
2603 end_time1 += start_time1;
2605 end_time_text =
FFMAX(end_time_text, end_time1);
2607 end_time =
FFMAX(end_time, end_time1);
2619 duration =
FFMAX(duration, duration1);
2622 if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text <
AV_TIME_BASE))
2623 start_time = start_time_text;
2624 else if (start_time > start_time_text)
2627 if (end_time == INT64_MIN || (end_time < end_time_text && end_time_text - (uint64_t)end_time < AV_TIME_BASE)) {
2628 end_time = end_time_text;
2629 }
else if (end_time < end_time_text) {
2630 av_log(ic,
AV_LOG_VERBOSE,
"Ignoring outlier non primary stream endtime %f\n", end_time_text / (
float)AV_TIME_BASE);
2633 if (start_time != INT64_MAX) {
2635 if (end_time != INT64_MIN) {
2644 }
else if (end_time >= start_time && end_time - (uint64_t)start_time <= INT64_MAX) {
2645 duration =
FFMAX(duration, end_time - start_time);
2654 double bitrate = (double) filesize * 8.0 * AV_TIME_BASE /
2656 if (bitrate >= 0 && bitrate <= INT64_MAX)
2683 int i, show_warning = 0;
2688 int64_t bit_rate = 0;
2730 "Estimating duration from bitrate, this may be inaccurate\n");
2733 #define DURATION_MAX_READ_SIZE 250000LL 2734 #define DURATION_MAX_RETRY 6 2741 int num, den, read_size, i, ret;
2742 int found_duration = 0;
2756 "start time for stream %d is not set in estimate_timings_from_pts\n", i);
2769 is_end = found_duration;
2782 }
while (ret ==
AVERROR(EAGAIN));
2785 read_size += pkt->
size;
2842 av_log(ic,
AV_LOG_DEBUG,
"stream %d : no PTS found at end of file, duration not set\n", i);
2844 av_log(ic,
AV_LOG_DEBUG,
"stream %d : no TS found at start of file, duration not set\n", i);
2872 file_size =
FFMAX(0, file_size);
2898 if (st->time_base.den)
2900 (
double) st->start_time *
av_q2d(st->time_base),
2901 (
double) st->duration *
av_q2d(st->time_base));
2904 "format: start_time: %0.3f duration: %0.3f bitrate=%"PRId64
" kb/s\n",
2915 #define FAIL(errmsg) do { \ 2917 *errmsg_ptr = errmsg; \ 2923 FAIL(
"unknown codec");
2927 FAIL(
"unspecified frame size");
2930 FAIL(
"unspecified sample format");
2932 FAIL(
"unspecified sample rate");
2934 FAIL(
"unspecified number of channels");
2936 FAIL(
"no decodable DTS frames");
2940 FAIL(
"unspecified size");
2942 FAIL(
"unspecified pixel format");
2945 FAIL(
"no frame in rv30/40 and no sar");
2949 FAIL(
"unspecified size");
2964 int got_picture = 1, ret = 0;
2968 int do_skip_frame = 0;
2989 av_dict_set(options ? options : &thread_opt,
"threads",
"1", 0);
2992 ret =
avcodec_open2(avctx, codec, options ? options : &thread_opt);
3014 while ((pkt.
size > 0 || (!pkt.
data && got_picture)) &&
3034 &got_picture, &pkt);
3045 if (!pkt.
data && !got_picture)
3049 if (do_skip_frame) {
3071 if (tag == tags[i].tag)
3081 if (bps <= 0 || bps > 64)
3096 if (sflags & (1 << (bps - 1))) {
3140 for (i = 0; tags && tags[i]; i++) {
3143 if (codec_tags->
id ==
id) {
3144 *tag = codec_tags->
tag;
3156 for (i = 0; tags && tags[i]; i++) {
3167 int64_t max_time = 0;
3184 if (j != i && next_start > ch->
start && next_start < end)
3187 ch->
end = (end == INT64_MAX || end < ch->
start) ? ch->
start : end;
3194 return (i + 1) * 1001;
3198 return (i + 31) * 1001 * 12;
3202 return ((
const int[]) { 80, 120, 240})[i] * 1001 * 12;
3206 return ((
const int[]) { 24, 30, 60, 12, 15, 48 })[i] * 1000 * 12;
3273 && ts - (uint64_t)last < INT64_MAX) {
3287 double sdts = dts*framerate/(1001*12);
3288 for (j= 0; j<2; j++) {
3289 int64_t ticks =
llrint(sdts+j*0.5);
3290 double error= sdts - ticks + j*0.5;
3309 if (error0 > 0.04 && error1 > 0.04) {
3344 double best_error= 0.01;
3359 for (k= 0; k<2; k++) {
3364 if (error < best_error && best_error> 0.000000001) {
3373 if (num && (!ref_rate.
num || (
double)num/(12*1001) < 1.01 *
av_q2d(ref_rate)))
3516 int i,
count = 0, ret = 0, j;
3526 int64_t max_stream_analyze_duration;
3527 int64_t max_subtitle_analyze_duration;
3529 int eof_reached = 0;
3532 flush_codecs = probesize > 0;
3536 max_stream_analyze_duration = max_analyze_duration;
3537 max_subtitle_analyze_duration = max_analyze_duration;
3538 if (!max_analyze_duration) {
3539 max_stream_analyze_duration =
3549 av_log(ic,
AV_LOG_DEBUG,
"Before avformat_find_stream_info() pos: %"PRId64
" bytes read:%"PRId64
" seeks:%d nb_streams:%d\n",
3567 #if FF_API_LAVF_AVCTX 3587 "%s, packets or times may be invalid.\n",
3597 goto find_stream_info_err;
3605 av_dict_set(options ? &options[i] : &thread_opt,
"threads",
"1", 0);
3612 && codec && !avctx->
codec) {
3613 if (
avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
3615 "Failed to open codec in %s\n",__FUNCTION__);
3620 if (codec && !avctx->
codec)
3621 if (
avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
3623 "Failed to open codec in %s\n",__FUNCTION__);
3630 #if FF_API_R_FRAME_RATE 3639 int analyzed_all_streams;
3648 int fps_analyze_framecount = 20;
3657 fps_analyze_framecount *= 2;
3659 fps_analyze_framecount = 0;
3663 fps_analyze_framecount = 0;
3670 if (count < fps_analyze_framecount)
3685 analyzed_all_streams = 0;
3686 if (!missing_streams || !*missing_streams)
3688 analyzed_all_streams = 1;
3700 if (read_size >= probesize) {
3703 "Probe buffer size limit of %"PRId64
" bytes reached\n", probesize);
3710 "Stream #%d: not enough frames to estimate rate; " 3711 "consider increasing probesize\n", i);
3733 goto find_stream_info_err;
3738 read_size += pkt->
size;
3744 goto find_stream_info_err;
3753 "Non-increasing DTS in stream %d: packet %d with DTS " 3754 "%"PRId64
", packet %d with DTS %"PRId64
"\n",
3770 "DTS discontinuity in stream %d: packet %d with DTS " 3771 "%"PRId64
", packet %d with DTS %"PRId64
"\n",
3802 if (analyzed_all_streams) limit = max_analyze_duration;
3804 else limit = max_stream_analyze_duration;
3807 av_log(ic,
AV_LOG_VERBOSE,
"max_analyze_duration %"PRId64
" reached at %"PRId64
" microseconds st:%d\n",
3822 #if FF_API_R_FRAME_RATE 3829 goto find_stream_info_err;
3842 (options && i < orig_nb_streams) ? &options[i] :
NULL);
3853 for (stream_index = 0; stream_index < ic->
nb_streams; stream_index++) {
3854 st = ic->
streams[stream_index];
3858 if (codec && !avctx->
codec) {
3862 if (
avcodec_open2(avctx, codec, (options && stream_index < orig_nb_streams) ? &options[stream_index] : &opts) < 0)
3864 "Failed to open codec in %s\n",__FUNCTION__);
3890 (options && i < orig_nb_streams)
3891 ? &options[i] :
NULL);
3896 "decoding for stream %d failed\n", st->
index);
3919 double best_error = 0.01;
3937 if (error < best_error) {
3939 best_fps = std_fps.
num;
3943 error = fabs(
av_q2d(codec_frame_rate) /
3945 if (error < best_error) {
3947 best_fps = std_fps.
num;
3953 best_fps, 12 * 1001, INT_MAX);
4015 goto find_stream_info_err;
4021 "Could not find codec parameters for stream %d (%s): %s\n" 4022 "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
4040 goto find_stream_info_err;
4048 #if FF_API_LAVF_AVCTX 4052 goto find_stream_info_err;
4062 if (st->codec->codec_tag !=
MKTAG(
't',
'm',
'c',
'd')) {
4070 if (!st->codec->subtitle_header)
4071 goto find_stream_info_err;
4074 st->codec->subtitle_header_size);
4087 find_stream_info_err:
4098 av_log(ic,
AV_LOG_DEBUG,
"After avformat_find_stream_info() pos: %"PRId64
" bytes read:%"PRId64
" seeks:%d frames:%d\n",
4121 int wanted_stream_nb,
int related_stream,
4122 AVCodec **decoder_ret,
int flags)
4126 int best_count = -1, best_multiframe = -1, best_disposition = -1;
4127 int count, multiframe, disposition;
4128 int64_t best_bitrate = -1;
4130 unsigned *program =
NULL;
4133 if (related_stream >= 0 && wanted_stream_nb < 0) {
4141 int real_stream_index = program ? program[i] : i;
4146 if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
4161 multiframe =
FFMIN(5, count);
4162 if ((best_disposition > disposition) ||
4163 (best_disposition == disposition && best_multiframe > multiframe) ||
4164 (best_disposition == disposition && best_multiframe == multiframe && best_bitrate > bitrate) ||
4165 (best_disposition == disposition && best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
4167 best_disposition = disposition;
4169 best_bitrate = bitrate;
4170 best_multiframe = multiframe;
4171 ret = real_stream_index;
4173 if (program && i == nb_streams - 1 && ret < 0) {
4181 *decoder_ret = (
AVCodec*)best_decoder;
4295 #if FF_API_LAVF_AVCTX 4391 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);
4408 #if FF_API_LAVF_AVCTX 4432 #if FF_API_LAVF_AVCTX 4435 st->codec->bit_rate = 0;
4465 #if FF_API_R_FRAME_RATE 4511 int64_t
start, int64_t
end,
const char *title)
4517 av_log(s,
AV_LOG_ERROR,
"Chapter end time %"PRId64
" before start %"PRId64
"\n", end, start);
4576 char *q, buf1[20],
c;
4577 int nd,
len, percentd_found;
4590 if (nd >= INT_MAX / 10 - 255)
4592 nd = nd * 10 + *p++ -
'0';
4606 snprintf(buf1,
sizeof(buf1),
"%0*d", nd, number);
4608 if ((q - buf + len) > buf_size - 1)
4610 memcpy(q, buf1, len);
4618 if ((q - buf) < buf_size - 1)
4622 if (!percentd_found)
4637 char *authorization,
int authorization_size,
4638 char *hostname,
int hostname_size,
4639 int *port_ptr,
char *path,
int path_size,
const char *url)
4641 const char *p, *ls, *ls2, *at, *at2, *col, *brk;
4647 if (authorization_size > 0)
4648 authorization[0] = 0;
4649 if (hostname_size > 0)
4655 if ((p = strchr(url,
':'))) {
4669 ls = strchr(p,
'/');
4670 ls2 = strchr(p,
'?');
4674 ls =
FFMIN(ls, ls2);
4684 while ((at = strchr(p,
'@')) && at < ls) {
4686 FFMIN(authorization_size, at + 1 - at2));
4690 if (*p ==
'[' && (brk = strchr(p,
']')) && brk < ls) {
4693 FFMIN(hostname_size, brk - p));
4694 if (brk[1] ==
':' && port_ptr)
4695 *port_ptr = atoi(brk + 2);
4696 }
else if ((col = strchr(p,
':')) && col < ls) {
4698 FFMIN(col + 1 - p, hostname_size));
4700 *port_ptr = atoi(col + 1);
4703 FFMIN(ls + 1 - p, hostname_size));
4710 static const char hex_table_uc[16] = {
'0',
'1',
'2',
'3',
4713 'C',
'D',
'E',
'F' };
4714 static const char hex_table_lc[16] = {
'0',
'1',
'2',
'3',
4717 'c',
'd',
'e',
'f' };
4718 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
4720 for (i = 0; i <
s; i++) {
4721 buff[i * 2] = hex_table[src[i] >> 4];
4722 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
4739 if (c >=
'0' && c <=
'9')
4741 else if (c >=
'A' && c <=
'F')
4757 unsigned int pts_num,
unsigned int pts_den)
4761 if (new_tb.
num != pts_num)
4763 "st:%d removing common factor %d from timebase\n",
4767 "st:%d has too large timebase, reducing\n", s->
index);
4769 if (new_tb.
num <= 0 || new_tb.
den <= 0) {
4771 "Ignoring attempt to set invalid timebase %d/%d for st:%d\n",
4777 #if FF_API_LAVF_AVCTX 4789 const char *ptr = str;
4794 char *dest =
NULL, *dest_end;
4795 int key_len, dest_len = 0;
4798 while (*ptr && (
av_isspace(*ptr) || *ptr ==
','))
4805 if (!(ptr = strchr(key,
'=')))
4808 key_len = ptr - key;
4810 callback_get_buf(context, key, key_len, &dest, &dest_len);
4811 dest_end = dest + dest_len - 1;
4815 while (*ptr && *ptr !=
'\"') {
4819 if (dest && dest < dest_end)
4823 if (dest && dest < dest_end)
4831 for (; *ptr && !(
av_isspace(*ptr) || *ptr ==
','); ptr++)
4832 if (dest && dest < dest_end)
4853 unsigned int codec_tag;
4855 return ofmt->
query_codec(codec_id, std_compliance);
4903 if (channel_layout) {
4911 if (width || height) {
4918 bytestream_put_le32(&data, flags);
4920 bytestream_put_le32(&data, channels);
4922 bytestream_put_le64(&data, channel_layout);
4924 bytestream_put_le32(&data, sample_rate);
4925 if (width || height) {
4926 bytestream_put_le32(&data, width);
4927 bytestream_put_le32(&data, height);
4939 av_reduce(&stream_sample_aspect_ratio.
num, &stream_sample_aspect_ratio.
den,
4940 stream_sample_aspect_ratio.
num, stream_sample_aspect_ratio.
den, INT_MAX);
4941 if (stream_sample_aspect_ratio.
num <= 0 || stream_sample_aspect_ratio.
den <= 0)
4942 stream_sample_aspect_ratio = undef;
4944 av_reduce(&frame_sample_aspect_ratio.
num, &frame_sample_aspect_ratio.
den,
4945 frame_sample_aspect_ratio.
num, frame_sample_aspect_ratio.
den, INT_MAX);
4946 if (frame_sample_aspect_ratio.
num <= 0 || frame_sample_aspect_ratio.
den <= 0)
4947 frame_sample_aspect_ratio = undef;
4949 if (stream_sample_aspect_ratio.
num)
4950 return stream_sample_aspect_ratio;
4952 return frame_sample_aspect_ratio;
4961 if (avg_fr.
num > 0 && avg_fr.
den > 0 && fr.
num > 0 && fr.
den > 0 &&
4968 if ( codec_fr.
num > 0 && codec_fr.
den > 0 &&
4979 if (*spec <= '9' && *spec >=
'0')
4980 return strtol(spec,
NULL, 0) == st->
index;
4981 else if (*spec ==
'v' || *spec ==
'a' || *spec ==
's' || *spec ==
'd' ||
4982 *spec ==
't' || *spec ==
'V') {
4995 #if FF_API_LAVF_AVCTX 5007 if (*spec++ ==
':') {
5010 #if FF_API_LAVF_AVCTX 5013 || s->
streams[i]->codec->codec_type == type
5017 return i == st->
index;
5023 return i == st->
index;
5029 }
else if (*spec ==
'p' && *(spec + 1) ==
':') {
5033 prog_id = strtol(spec, &endptr, 0);
5038 if (*endptr++ ==
':') {
5039 int stream_idx = strtol(endptr,
NULL, 0);
5040 return stream_idx >= 0 &&
5050 }
else if (*spec ==
'#' ||
5051 (*spec ==
'i' && *(spec + 1) ==
':')) {
5054 spec += 1 + (*spec ==
'i');
5055 stream_id = strtol(spec, &endptr, 0);
5057 return stream_id == st->
id;
5058 }
else if (*spec ==
'm' && *(spec + 1) ==
':') {
5064 val = strchr(spec,
':');
5072 if (!val || !strcmp(tag->
value, val + 1))
5081 }
else if (*spec ==
'u') {
5083 #if FF_API_LAVF_AVCTX 5092 #if FF_API_LAVF_AVCTX 5093 val = val || (codec->sample_rate && codec->channels);
5104 #if FF_API_LAVF_AVCTX 5105 val = val || (codec->width && codec->height);
5121 #if FF_API_LAVF_AVCTX 5135 static const uint8_t avci100_1080p_extradata[] = {
5137 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
5138 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
5139 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
5140 0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
5141 0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
5142 0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
5143 0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
5144 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
5145 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
5147 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
5150 static const uint8_t avci100_1080i_extradata[] = {
5152 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
5153 0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
5154 0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
5155 0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
5156 0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
5157 0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
5158 0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
5159 0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
5160 0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
5161 0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
5162 0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x20,
5164 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
5167 static const uint8_t avci50_1080p_extradata[] = {
5169 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
5170 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5171 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5172 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
5173 0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
5174 0x6e, 0x6c, 0xd3, 0x3c, 0x05, 0xa0, 0x22, 0x7e,
5175 0x5f, 0xfc, 0x00, 0x0c, 0x00, 0x13, 0x8c, 0x04,
5176 0x04, 0x05, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00,
5177 0x00, 0x03, 0x00, 0x32, 0x84, 0x00, 0x00, 0x00,
5179 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5182 static const uint8_t avci50_1080i_extradata[] = {
5184 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
5185 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5186 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5187 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
5188 0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
5189 0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
5190 0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
5191 0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
5192 0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
5193 0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
5194 0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
5196 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5199 static const uint8_t avci100_720p_extradata[] = {
5201 0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
5202 0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
5203 0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
5204 0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
5205 0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
5206 0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
5207 0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
5208 0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
5209 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
5210 0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
5212 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
5215 static const uint8_t avci50_720p_extradata[] = {
5217 0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x20,
5218 0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
5219 0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
5220 0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
5221 0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
5222 0x6e, 0x6c, 0xd3, 0x3c, 0x0f, 0x01, 0x6e, 0xff,
5223 0xc0, 0x00, 0xc0, 0x01, 0x38, 0xc0, 0x40, 0x40,
5224 0x50, 0x00, 0x00, 0x03, 0x00, 0x10, 0x00, 0x00,
5225 0x06, 0x48, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
5227 0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
5236 data = avci100_1080p_extradata;
5237 size =
sizeof(avci100_1080p_extradata);
5239 data = avci100_1080i_extradata;
5240 size =
sizeof(avci100_1080i_extradata);
5244 data = avci50_1080p_extradata;
5245 size =
sizeof(avci50_1080p_extradata);
5247 data = avci50_1080i_extradata;
5248 size =
sizeof(avci50_1080i_extradata);
5251 data = avci100_720p_extradata;
5252 size =
sizeof(avci100_720p_extradata);
5254 data = avci50_720p_extradata;
5255 size =
sizeof(avci50_720p_extradata);
5269 #if FF_API_NOCONST_GET_SIDE_DATA 5298 if (sd->
type == type) {
5373 const char * shorthand[2] = {
NULL};
5376 shorthand[0] = opt->
name;
5395 "Automatically inserted bitstream filter '%s'; args='%s'\n",
5396 name, args ? args :
"");
5414 memset(pkt, 0,
sizeof(*pkt));
5417 if(a == 0 && new_pkt.
data != pkt->
data) {
5420 memcpy(t, new_pkt.
data, new_pkt.
size);
5443 "Failed to open bitstream filter %s for stream %d with codec %s",
5478 int64_t parsed_timestamp;
5482 *timestamp = return_seconds ? parsed_timestamp / 1000000 : parsed_timestamp;
5563 if (!strcmp(ofmt->
name,
"avi")) {
5564 #if FF_API_R_FRAME_RATE 5570 || copy_tb == AVFMT_TBCF_R_FRAMERATE) {
5614 #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 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 ff_network_inited_globally
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx)
Allocate a context for a given bitstream filter.
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.
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
Retrieve a filtered packet.
static int64_t start_time
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
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)
int ff_id3v2_parse_chapters(AVFormatContext *s, ID3v2ExtraMeta **extra_meta)
Create chapters for all CHAP tags found in the ID3v2 header.
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.
struct AVStreamInternal::@212 extract_extradata
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.
#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.
enum AVCodecID * codec_ids
A list of codec ids supported by the filter, terminated by AV_CODEC_ID_NONE.
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 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.
struct AVStream::@197 * info
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
common internal API header
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)
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
Submit a packet for filtering.
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 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.
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
#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
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.
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_X86ASM &&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
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.
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. ...
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.
unsigned properties
Properties of the stream that gets decoded.
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()
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
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.