/*
- * various utility functions for use within Libav
+ * various utility functions for use within FFmpeg
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avio_internal.h"
#include "internal.h"
#include "libavcodec/internal.h"
+#include "libavcodec/raw.h"
#include "libavcodec/bytestream.h"
+#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/dict.h"
#include "libavutil/pixdesc.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "libavutil/time.h"
+#include "libavutil/timestamp.h"
#include "riff.h"
#include "audiointerleave.h"
#include "url.h"
/**
* @file
- * various utility functions for use within Libav
+ * various utility functions for use within FFmpeg
*/
unsigned avformat_version(void)
{
+ av_assert0(LIBAVFORMAT_VERSION_MICRO >= 100);
return LIBAVFORMAT_VERSION_INT;
}
const char *avformat_configuration(void)
{
- return LIBAV_CONFIGURATION;
+ return FFMPEG_CONFIGURATION;
}
const char *avformat_license(void)
{
#define LICENSE_PREFIX "libavformat license: "
- return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+ return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+#define RELATIVE_TS_BASE (INT64_MAX - (1LL<<48))
+
+static int is_relative(int64_t ts) {
+ return ts > (RELATIVE_TS_BASE - (1LL<<48));
+}
+
+/**
+ * Wrap a given time stamp, if there is an indication for an overflow
+ *
+ * @param st stream
+ * @param timestamp the time stamp to wrap
+ * @return resulting time stamp
+ */
+static int64_t wrap_timestamp(AVStream *st, int64_t timestamp)
+{
+ if (st->pts_wrap_behavior != AV_PTS_WRAP_IGNORE &&
+ st->pts_wrap_reference != AV_NOPTS_VALUE && timestamp != AV_NOPTS_VALUE) {
+ if (st->pts_wrap_behavior == AV_PTS_WRAP_ADD_OFFSET &&
+ timestamp < st->pts_wrap_reference)
+ return timestamp + (1ULL<<st->pts_wrap_bits);
+ else if (st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET &&
+ timestamp >= st->pts_wrap_reference)
+ return timestamp - (1ULL<<st->pts_wrap_bits);
+ }
+ return timestamp;
}
/** head of registered input format linked list */
score_max = 0;
while ((fmt = av_oformat_next(fmt))) {
score = 0;
- if (fmt->name && short_name && !av_strcasecmp(fmt->name, short_name))
+ if (fmt->name && short_name && match_format(short_name, fmt->name))
score += 100;
if (fmt->mime_type && mime_type && !strcmp(fmt->mime_type, mime_type))
score += 10;
return NULL;
}
+int ffio_limit(AVIOContext *s, int size)
+{
+ if(s->maxsize>=0){
+ int64_t remaining= s->maxsize - avio_tell(s);
+ if(remaining < size){
+ int64_t newsize= avio_size(s);
+ if(!s->maxsize || s->maxsize<newsize)
+ s->maxsize= newsize - !newsize;
+ remaining= s->maxsize - avio_tell(s);
+ remaining= FFMAX(remaining, 0);
+ }
+
+ if(s->maxsize>=0 && remaining+1 < size){
+ av_log(NULL, remaining ? AV_LOG_ERROR : AV_LOG_DEBUG, "Truncating packet of size %d to %"PRId64"\n", size, remaining+1);
+ size= remaining+1;
+ }
+ }
+ return size;
+}
int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
{
- int ret= av_new_packet(pkt, size);
+ int ret;
+ int orig_size = size;
+ size= ffio_limit(s, size);
+
+ ret= av_new_packet(pkt, size);
if(ret<0)
return ret;
av_free_packet(pkt);
else
av_shrink_packet(pkt, ret);
+ if (pkt->size < orig_size)
+ pkt->flags |= AV_PKT_FLAG_CORRUPT;
return ret;
}
return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
}
-AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
+AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret)
{
AVProbeData lpd = *pd;
AVInputFormat *fmt1 = NULL, *fmt;
- int score, id3 = 0;
+ int score, nodat = 0, score_max=0;
+ const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
+
+ if (!lpd.buf)
+ lpd.buf = zerobuffer;
if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
int id3len = ff_id3v2_tag_len(lpd.buf);
if (lpd.buf_size > id3len + 16) {
lpd.buf += id3len;
lpd.buf_size -= id3len;
- }
- id3 = 1;
+ }else
+ nodat = 1;
}
fmt = NULL;
score = 0;
if (fmt1->read_probe) {
score = fmt1->read_probe(&lpd);
+ if(fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
+ score = FFMAX(score, nodat ? AVPROBE_SCORE_MAX/4-1 : 1);
} else if (fmt1->extensions) {
if (av_match_ext(lpd.filename, fmt1->extensions)) {
score = 50;
}
}
- if (score > *score_max) {
- *score_max = score;
+ if (score > score_max) {
+ score_max = score;
fmt = fmt1;
- }else if (score == *score_max)
+ }else if (score == score_max)
fmt = NULL;
}
-
- /* a hack for files with huge id3v2 tags -- try to guess by file extension. */
- if (!fmt && is_opened && *score_max < AVPROBE_SCORE_MAX/4) {
- while ((fmt = av_iformat_next(fmt)))
- if (fmt->extensions && av_match_ext(lpd.filename, fmt->extensions)) {
- *score_max = AVPROBE_SCORE_MAX/4;
- break;
- }
- }
-
- if (!fmt && id3 && *score_max < AVPROBE_SCORE_MAX/4-1) {
- while ((fmt = av_iformat_next(fmt)))
- if (fmt->extensions && av_match_ext("mp3", fmt->extensions)) {
- *score_max = AVPROBE_SCORE_MAX/4-1;
- break;
- }
- }
+ *score_ret= score_max;
return fmt;
}
+AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
+{
+ int score_ret;
+ AVInputFormat *fmt= av_probe_input_format3(pd, is_opened, &score_ret);
+ if(score_ret > *score_max){
+ *score_max= score_ret;
+ return fmt;
+ }else
+ return NULL;
+}
+
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened){
int score=0;
return av_probe_input_format2(pd, is_opened, &score);
}
-static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeData *pd, int score)
+static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeData *pd)
{
static const struct {
const char *name; enum AVCodecID id; enum AVMediaType type;
{ "dts" , AV_CODEC_ID_DTS , AVMEDIA_TYPE_AUDIO },
{ "eac3" , AV_CODEC_ID_EAC3 , AVMEDIA_TYPE_AUDIO },
{ "h264" , AV_CODEC_ID_H264 , AVMEDIA_TYPE_VIDEO },
+ { "loas" , AV_CODEC_ID_AAC_LATM , AVMEDIA_TYPE_AUDIO },
{ "m4v" , AV_CODEC_ID_MPEG4 , AVMEDIA_TYPE_VIDEO },
{ "mp3" , AV_CODEC_ID_MP3 , AVMEDIA_TYPE_AUDIO },
{ "mpegvideo", AV_CODEC_ID_MPEG2VIDEO, AVMEDIA_TYPE_VIDEO },
{ 0 }
};
- AVInputFormat *fmt = av_probe_input_format2(pd, 1, &score);
+ int score;
+ AVInputFormat *fmt = av_probe_input_format3(pd, 1, &score);
- if (fmt) {
+ if (fmt && st->request_probe <= score) {
int i;
av_log(s, AV_LOG_DEBUG, "Probe with size=%d, packets=%d detected %s with score=%d\n",
pd->buf_size, MAX_PROBE_PACKETS - st->probe_packets, fmt->name, score);
}
}
}
- return !!fmt;
+ return score;
}
/************************************************************/
/* input media file */
+int av_demuxer_open(AVFormatContext *ic){
+ int err;
+
+ if (ic->iformat->read_header) {
+ err = ic->iformat->read_header(ic);
+ if (err < 0)
+ return err;
+ }
+
+ if (ic->pb && !ic->data_offset)
+ ic->data_offset = avio_tell(ic->pb);
+
+ return 0;
+}
+
+
/** size of probe buffer, for guessing file type from file contents */
#define PROBE_BUF_MIN 2048
#define PROBE_BUF_MAX (1<<20)
{
AVProbeData pd = { filename ? filename : "", NULL, -offset };
unsigned char *buf = NULL;
- int ret = 0, probe_size;
+ uint8_t *mime_type;
+ int ret = 0, probe_size, buf_offset = 0;
if (!max_probe_size) {
max_probe_size = PROBE_BUF_MAX;
return AVERROR(EINVAL);
}
+ if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
+ if (!av_strcasecmp(mime_type, "audio/aacp")) {
+ *fmt = av_find_input_format("aac");
+ }
+ av_freep(&mime_type);
+ }
+
for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;
probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {
- int score = probe_size < max_probe_size ? AVPROBE_SCORE_MAX/4 : 0;
- int buf_offset = (probe_size == PROBE_BUF_MIN) ? 0 : probe_size>>1;
+ int score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
+ void *buftmp;
if (probe_size < offset) {
continue;
}
/* read probe data */
- buf = av_realloc(buf, probe_size + AVPROBE_PADDING_SIZE);
+ buftmp = av_realloc(buf, probe_size + AVPROBE_PADDING_SIZE);
+ if(!buftmp){
+ av_free(buf);
+ return AVERROR(ENOMEM);
+ }
+ buf=buftmp;
if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {
/* fail if error was not end of file, otherwise, lower score */
if (ret != AVERROR_EOF) {
score = 0;
ret = 0; /* error was end of file, nothing read */
}
- pd.buf_size += ret;
+ pd.buf_size = buf_offset += ret;
pd.buf = &buf[offset];
memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
/* guess file format */
*fmt = av_probe_input_format2(&pd, 1, &score);
if(*fmt){
- if(score <= AVPROBE_SCORE_MAX/4){ //this can only be true in the last iteration
- av_log(logctx, AV_LOG_WARNING, "Format detected only with low score of %d, misdetection possible!\n", score);
+ if(score <= AVPROBE_SCORE_RETRY){ //this can only be true in the last iteration
+ av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);
}else
- av_log(logctx, AV_LOG_DEBUG, "Probed with size=%d and score=%d\n", probe_size, score);
+ av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);
}
}
}
/* rewind. reuse probe buffer to avoid seeking */
- if ((ret = ffio_rewind_with_probe_data(pb, buf, pd.buf_size)) < 0)
- av_free(buf);
+ ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);
return ret;
}
{
int ret;
AVProbeData pd = {filename, NULL, 0};
+ int score = AVPROBE_SCORE_RETRY;
if (s->pb) {
s->flags |= AVFMT_FLAG_CUSTOM_IO;
if (!s->iformat)
return av_probe_input_buffer(s->pb, &s->iformat, filename, s, 0, s->probesize);
else if (s->iformat->flags & AVFMT_NOFILE)
- return AVERROR(EINVAL);
+ av_log(s, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
+ "will be ignored with AVFMT_NOFILE format.\n");
return 0;
}
if ( (s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
- (!s->iformat && (s->iformat = av_probe_input_format(&pd, 0))))
+ (!s->iformat && (s->iformat = av_probe_input_format2(&pd, 0, &score))))
return 0;
- if ((ret = avio_open2(&s->pb, filename, AVIO_FLAG_READ,
+ if ((ret = avio_open2(&s->pb, filename, AVIO_FLAG_READ | s->avio_flags,
&s->interrupt_callback, options)) < 0)
return ret;
if (s->iformat)
return &pktl->pkt;
}
-static void queue_attached_pictures(AVFormatContext *s)
+void avformat_queue_attached_pictures(AVFormatContext *s)
{
int i;
for (i = 0; i < s->nb_streams; i++)
if (!s && !(s = avformat_alloc_context()))
return AVERROR(ENOMEM);
+ if (!s->av_class){
+ av_log(NULL, AV_LOG_ERROR, "Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
+ return AVERROR(EINVAL);
+ }
if (fmt)
s->iformat = fmt;
if ((ret = init_input(s, filename, &tmp)) < 0)
goto fail;
+ avio_skip(s->pb, s->skip_initial_bytes);
/* check filename in case an image number is expected */
if (s->iformat->flags & AVFMT_NEEDNUMBER) {
if (s->pb)
ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
- if (s->iformat->read_header)
+ if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
if ((ret = s->iformat->read_header(s)) < 0)
goto fail;
- if (id3v2_extra_meta &&
- (ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0)
- goto fail;
+ if (id3v2_extra_meta) {
+ if (!strcmp(s->iformat->name, "mp3")) {
+ if((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0)
+ goto fail;
+ } else
+ av_log(s, AV_LOG_DEBUG, "demuxer does not support additional id3 data, skipping\n");
+ }
ff_id3v2_free_extra_meta(&id3v2_extra_meta);
- queue_attached_pictures(s);
+ avformat_queue_attached_pictures(s);
- if (s->pb && !s->data_offset)
+ if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->pb && !s->data_offset)
s->data_offset = avio_tell(s->pb);
s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
static void probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
{
- if(st->codec->codec_id == AV_CODEC_ID_PROBE){
+ if(st->request_probe>0){
AVProbeData *pd = &st->probe_data;
- av_log(s, AV_LOG_DEBUG, "probing stream %d\n", st->index);
+ int end;
+ av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->probe_packets);
--st->probe_packets;
if (pkt) {
- pd->buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
+ uint8_t *new_buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
+ if(!new_buf)
+ goto no_packet;
+ pd->buf = new_buf;
memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);
pd->buf_size += pkt->size;
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
} else {
+no_packet:
st->probe_packets = 0;
if (!pd->buf_size) {
- av_log(s, AV_LOG_ERROR, "nothing to probe for stream %d\n",
+ av_log(s, AV_LOG_WARNING, "nothing to probe for stream %d\n",
st->index);
- return;
}
}
- if (!st->probe_packets ||
- av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)) {
- set_codec_from_probe_data(s, st, pd, st->probe_packets > 0 ? AVPROBE_SCORE_MAX/4 : 0);
- if(st->codec->codec_id != AV_CODEC_ID_PROBE){
+ end= s->raw_packet_buffer_remaining_size <= 0
+ || st->probe_packets<=0;
+
+ if(end || av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
+ int score= set_codec_from_probe_data(s, st, pd);
+ if( (st->codec->codec_id != AV_CODEC_ID_NONE && score > AVPROBE_SCORE_RETRY)
+ || end){
pd->buf_size=0;
av_freep(&pd->buf);
- av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
+ st->request_probe= -1;
+ if(st->codec->codec_id != AV_CODEC_ID_NONE){
+ av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
+ }else
+ av_log(s, AV_LOG_WARNING, "probed stream %d failed\n", st->index);
}
}
}
}
+static void force_codec_ids(AVFormatContext *s, AVStream *st)
+{
+ switch(st->codec->codec_type){
+ case AVMEDIA_TYPE_VIDEO:
+ if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ if(s->audio_codec_id) st->codec->codec_id= s->audio_codec_id;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ if(s->subtitle_codec_id)st->codec->codec_id= s->subtitle_codec_id;
+ break;
+ }
+}
+
int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int ret, i;
if (pktl) {
*pkt = pktl->pkt;
st = s->streams[pkt->stream_index];
- if (st->codec->codec_id != AV_CODEC_ID_PROBE || !st->probe_packets ||
- s->raw_packet_buffer_remaining_size < pkt->size) {
- AVProbeData *pd;
- if (st->probe_packets) {
- probe_codec(s, st, NULL);
- }
- pd = &st->probe_data;
- av_freep(&pd->buf);
- pd->buf_size = 0;
+ if(st->request_probe <= 0){
s->raw_packet_buffer = pktl->next;
s->raw_packet_buffer_remaining_size += pkt->size;
av_free(pktl);
if (st->probe_packets) {
probe_codec(s, st, NULL);
}
+ av_assert0(st->request_probe <= 0);
}
continue;
}
continue;
}
- st= s->streams[pkt->stream_index];
+ if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
+ av_packet_merge_side_data(pkt);
- switch(st->codec->codec_type){
- case AVMEDIA_TYPE_VIDEO:
- if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
- break;
- case AVMEDIA_TYPE_AUDIO:
- if(s->audio_codec_id) st->codec->codec_id= s->audio_codec_id;
- break;
- case AVMEDIA_TYPE_SUBTITLE:
- if(s->subtitle_codec_id)st->codec->codec_id= s->subtitle_codec_id;
- break;
+ if(pkt->stream_index >= (unsigned)s->nb_streams){
+ av_log(s, AV_LOG_ERROR, "Invalid stream index %d\n", pkt->stream_index);
+ continue;
}
- if(!pktl && (st->codec->codec_id != AV_CODEC_ID_PROBE ||
- !st->probe_packets))
+ st= s->streams[pkt->stream_index];
+ pkt->dts = wrap_timestamp(st, pkt->dts);
+ pkt->pts = wrap_timestamp(st, pkt->pts);
+
+ force_codec_ids(s, st);
+
+ /* TODO: audio: time filter; video: frame reordering (pts != dts) */
+ if (s->use_wallclock_as_timestamps)
+ pkt->dts = pkt->pts = av_rescale_q(av_gettime(), AV_TIME_BASE_Q, st->time_base);
+
+ if(!pktl && st->request_probe <= 0)
return ret;
add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
/**********************************************************/
+static int determinable_frame_size(AVCodecContext *avctx)
+{
+ if (/*avctx->codec_id == AV_CODEC_ID_AAC ||*/
+ avctx->codec_id == AV_CODEC_ID_MP1 ||
+ avctx->codec_id == AV_CODEC_ID_MP2 ||
+ avctx->codec_id == AV_CODEC_ID_MP3/* ||
+ avctx->codec_id == AV_CODEC_ID_CELT*/)
+ return 1;
+ return 0;
+}
+
/**
* Get the number of samples of an audio frame. Return -1 on error.
*/
*pden = 0;
switch(st->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
- if (st->avg_frame_rate.num) {
- *pnum = st->avg_frame_rate.den;
- *pden = st->avg_frame_rate.num;
+ if (st->r_frame_rate.num && !pc) {
+ *pnum = st->r_frame_rate.den;
+ *pden = st->r_frame_rate.num;
} else if(st->time_base.num*1000LL > st->time_base.den) {
*pnum = st->time_base.num;
*pden = st->time_base.den;
}
}
-static int is_intra_only(enum AVCodecID id)
+static int is_intra_only(AVCodecContext *enc){
+ const AVCodecDescriptor *desc;
+
+ if(enc->codec_type != AVMEDIA_TYPE_VIDEO)
+ return 1;
+
+ desc = av_codec_get_codec_descriptor(enc);
+ if (!desc) {
+ desc = avcodec_descriptor_get(enc->codec_id);
+ av_codec_set_codec_descriptor(enc, desc);
+ }
+ if (desc)
+ return !!(desc->props & AV_CODEC_PROP_INTRA_ONLY);
+ return 0;
+}
+
+static int has_decode_delay_been_guessed(AVStream *st)
{
- const AVCodecDescriptor *d = avcodec_descriptor_get(id);
- if (!d)
- return 0;
- if (d->type == AVMEDIA_TYPE_VIDEO && !(d->props & AV_CODEC_PROP_INTRA_ONLY))
- return 0;
- return 1;
+ if(st->codec->codec_id != AV_CODEC_ID_H264) return 1;
+ if(!st->info) // if we have left find_stream_info then nb_decoded_frames wont increase anymore for stream copy
+ return 1;
+#if CONFIG_H264_DECODER
+ if(st->codec->has_b_frames &&
+ avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
+ return 1;
+#endif
+ if(st->codec->has_b_frames<3)
+ return st->nb_decoded_frames >= 7;
+ else if(st->codec->has_b_frames<4)
+ return st->nb_decoded_frames >= 18;
+ else
+ return st->nb_decoded_frames >= 20;
+}
+
+static AVPacketList *get_next_pkt(AVFormatContext *s, AVStream *st, AVPacketList *pktl)
+{
+ if (pktl->next)
+ return pktl->next;
+ if (pktl == s->parse_queue_end)
+ return s->packet_buffer;
+ return NULL;
+}
+
+static int update_wrap_reference(AVFormatContext *s, AVStream *st, int stream_index)
+{
+ if (s->correct_ts_overflow && st->pts_wrap_bits < 63 &&
+ st->pts_wrap_reference == AV_NOPTS_VALUE && st->first_dts != AV_NOPTS_VALUE) {
+ int i;
+
+ // reference time stamp should be 60 s before first time stamp
+ int64_t pts_wrap_reference = st->first_dts - av_rescale(60, st->time_base.den, st->time_base.num);
+ // if first time stamp is not more than 1/8 and 60s before the wrap point, subtract rather than add wrap offset
+ int pts_wrap_behavior = (st->first_dts < (1LL<<st->pts_wrap_bits) - (1LL<<st->pts_wrap_bits-3)) ||
+ (st->first_dts < (1LL<<st->pts_wrap_bits) - av_rescale(60, st->time_base.den, st->time_base.num)) ?
+ AV_PTS_WRAP_ADD_OFFSET : AV_PTS_WRAP_SUB_OFFSET;
+
+ AVProgram *first_program = av_find_program_from_stream(s, NULL, stream_index);
+
+ if (!first_program) {
+ int default_stream_index = av_find_default_stream_index(s);
+ if (s->streams[default_stream_index]->pts_wrap_reference == AV_NOPTS_VALUE) {
+ for (i=0; i<s->nb_streams; i++) {
+ s->streams[i]->pts_wrap_reference = pts_wrap_reference;
+ s->streams[i]->pts_wrap_behavior = pts_wrap_behavior;
+ }
+ }
+ else {
+ st->pts_wrap_reference = s->streams[default_stream_index]->pts_wrap_reference;
+ st->pts_wrap_behavior = s->streams[default_stream_index]->pts_wrap_behavior;
+ }
+ }
+ else {
+ AVProgram *program = first_program;
+ while (program) {
+ if (program->pts_wrap_reference != AV_NOPTS_VALUE) {
+ pts_wrap_reference = program->pts_wrap_reference;
+ pts_wrap_behavior = program->pts_wrap_behavior;
+ break;
+ }
+ program = av_find_program_from_stream(s, program, stream_index);
+ }
+
+ // update every program with differing pts_wrap_reference
+ program = first_program;
+ while(program) {
+ if (program->pts_wrap_reference != pts_wrap_reference) {
+ for (i=0; i<program->nb_stream_indexes; i++) {
+ s->streams[program->stream_index[i]]->pts_wrap_reference = pts_wrap_reference;
+ s->streams[program->stream_index[i]]->pts_wrap_behavior = pts_wrap_behavior;
+ }
+
+ program->pts_wrap_reference = pts_wrap_reference;
+ program->pts_wrap_behavior = pts_wrap_behavior;
+ }
+ program = av_find_program_from_stream(s, program, stream_index);
+ }
+ }
+ return 1;
+ }
+ return 0;
}
static void update_initial_timestamps(AVFormatContext *s, int stream_index,
- int64_t dts, int64_t pts)
+ int64_t dts, int64_t pts, AVPacket *pkt)
{
AVStream *st= s->streams[stream_index];
- AVPacketList *pktl= s->packet_buffer;
+ AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
+ int64_t pts_buffer[MAX_REORDER_DELAY+1];
+ int64_t shift;
+ int i, delay;
- if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE)
+ if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE || is_relative(dts))
return;
- st->first_dts= dts - st->cur_dts;
+ delay = st->codec->has_b_frames;
+ st->first_dts= dts - (st->cur_dts - RELATIVE_TS_BASE);
st->cur_dts= dts;
+ shift = st->first_dts - RELATIVE_TS_BASE;
+
+ for (i=0; i<MAX_REORDER_DELAY+1; i++)
+ pts_buffer[i] = AV_NOPTS_VALUE;
+
+ if (is_relative(pts))
+ pts += shift;
- for(; pktl; pktl= pktl->next){
+ for(; pktl; pktl= get_next_pkt(s, st, pktl)){
if(pktl->pkt.stream_index != stream_index)
continue;
- //FIXME think more about this check
- if(pktl->pkt.pts != AV_NOPTS_VALUE && pktl->pkt.pts == pktl->pkt.dts)
- pktl->pkt.pts += st->first_dts;
+ if(is_relative(pktl->pkt.pts))
+ pktl->pkt.pts += shift;
- if(pktl->pkt.dts != AV_NOPTS_VALUE)
- pktl->pkt.dts += st->first_dts;
+ if(is_relative(pktl->pkt.dts))
+ pktl->pkt.dts += shift;
if(st->start_time == AV_NOPTS_VALUE && pktl->pkt.pts != AV_NOPTS_VALUE)
st->start_time= pktl->pkt.pts;
+
+ if(pktl->pkt.pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
+ pts_buffer[0]= pktl->pkt.pts;
+ for(i=0; i<delay && pts_buffer[i] > pts_buffer[i+1]; i++)
+ FFSWAP(int64_t, pts_buffer[i], pts_buffer[i+1]);
+ if(pktl->pkt.dts == AV_NOPTS_VALUE)
+ pktl->pkt.dts= pts_buffer[0];
+ }
}
+
+ if (update_wrap_reference(s, st, stream_index) && st->pts_wrap_behavior == AV_PTS_WRAP_SUB_OFFSET) {
+ // correct first time stamps to negative values
+ st->first_dts = wrap_timestamp(st, st->first_dts);
+ st->cur_dts = wrap_timestamp(st, st->cur_dts);
+ pkt->dts = wrap_timestamp(st, pkt->dts);
+ pkt->pts = wrap_timestamp(st, pkt->pts);
+ pts = wrap_timestamp(st, pts);
+ }
+
if (st->start_time == AV_NOPTS_VALUE)
st->start_time = pts;
}
static void update_initial_durations(AVFormatContext *s, AVStream *st,
int stream_index, int duration)
{
- AVPacketList *pktl= s->packet_buffer;
- int64_t cur_dts= 0;
+ AVPacketList *pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
+ int64_t cur_dts= RELATIVE_TS_BASE;
if(st->first_dts != AV_NOPTS_VALUE){
cur_dts= st->first_dts;
- for(; pktl; pktl= pktl->next){
+ for(; pktl; pktl= get_next_pkt(s, st, pktl)){
if(pktl->pkt.stream_index == stream_index){
if(pktl->pkt.pts != pktl->pkt.dts || pktl->pkt.dts != AV_NOPTS_VALUE || pktl->pkt.duration)
break;
cur_dts -= duration;
}
}
- pktl= s->packet_buffer;
+ if(pktl && pktl->pkt.dts != st->first_dts) {
+ av_log(s, AV_LOG_DEBUG, "first_dts %s not matching first dts %s in que\n", av_ts2str(st->first_dts), av_ts2str(pktl->pkt.dts));
+ return;
+ }
+ if(!pktl) {
+ av_log(s, AV_LOG_DEBUG, "first_dts %s but no packet with dts in ques\n", av_ts2str(st->first_dts));
+ return;
+ }
+ pktl= s->parse_queue ? s->parse_queue : s->packet_buffer;
st->first_dts = cur_dts;
- }else if(st->cur_dts)
+ }else if(st->cur_dts != RELATIVE_TS_BASE)
return;
- for(; pktl; pktl= pktl->next){
+ for(; pktl; pktl= get_next_pkt(s, st, pktl)){
if(pktl->pkt.stream_index != stream_index)
continue;
- if(pktl->pkt.pts == pktl->pkt.dts && pktl->pkt.dts == AV_NOPTS_VALUE
+ if(pktl->pkt.pts == pktl->pkt.dts && (pktl->pkt.dts == AV_NOPTS_VALUE || pktl->pkt.dts == st->first_dts)
&& !pktl->pkt.duration){
pktl->pkt.dts= cur_dts;
if(!st->codec->has_b_frames)
pktl->pkt.pts= cur_dts;
- cur_dts += duration;
- if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
+// if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
pktl->pkt.duration = duration;
}else
break;
+ cur_dts = pktl->pkt.dts + pktl->pkt.duration;
}
- if(st->first_dts == AV_NOPTS_VALUE)
+ if(!pktl)
st->cur_dts= cur_dts;
}
if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
pkt->dts= AV_NOPTS_VALUE;
+ if (st->codec->codec_id != AV_CODEC_ID_H264 && pc && pc->pict_type == AV_PICTURE_TYPE_B)
+ //FIXME Set low_delay = 0 when has_b_frames = 1
+ st->codec->has_b_frames = 1;
+
/* do we have a video B-frame ? */
delay= st->codec->has_b_frames;
presentation_delayed = 0;
pc && pc->pict_type != AV_PICTURE_TYPE_B)
presentation_delayed = 1;
- if(pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && pkt->dts > pkt->pts && st->pts_wrap_bits<63
- /*&& pkt->dts-(1LL<<st->pts_wrap_bits) < pkt->pts*/){
- pkt->dts -= 1LL<<st->pts_wrap_bits;
+ if(pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && st->pts_wrap_bits<63 && pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > pkt->pts){
+ if(is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits-1)) > st->cur_dts) {
+ pkt->dts -= 1LL<<st->pts_wrap_bits;
+ } else
+ pkt->pts += 1LL<<st->pts_wrap_bits;
}
// some mpeg2 in mpeg-ps lack dts (issue171 / input_file.mpg)
// we take the conservative approach and discard both
// Note, if this is misbehaving for a H.264 file then possibly presentation_delayed is not set correctly.
if(delay==1 && pkt->dts == pkt->pts && pkt->dts != AV_NOPTS_VALUE && presentation_delayed){
- av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination\n");
- pkt->dts= pkt->pts= AV_NOPTS_VALUE;
+ av_log(s, AV_LOG_DEBUG, "invalid dts/pts combination %"PRIi64"\n", pkt->dts);
+ if(strcmp(s->iformat->name, "mov,mp4,m4a,3gp,3g2,mj2")) // otherwise we discard correct timestamps for vc1-wmapro.ism
+ pkt->dts= AV_NOPTS_VALUE;
}
- if (pkt->duration == 0 && st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
+ if (pkt->duration == 0) {
ff_compute_frame_duration(&num, &den, st, pc, pkt);
if (den && num) {
pkt->duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num, AV_ROUND_DOWN);
-
- if(pkt->duration != 0 && s->packet_buffer)
- update_initial_durations(s, st, pkt->stream_index, pkt->duration);
}
}
+ if(pkt->duration != 0 && (s->packet_buffer || s->parse_queue))
+ update_initial_durations(s, st, pkt->stream_index, pkt->duration);
/* correct timestamps with byte offset if demuxers only have timestamps
on packet boundaries */
if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
presentation_delayed = 1;
- av_dlog(NULL,
- "IN delayed:%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64" st:%d pc:%p\n",
- presentation_delayed, pkt->pts, pkt->dts, st->cur_dts,
- pkt->stream_index, pc);
+ av_dlog(NULL, "IN delayed:%d pts:%s, dts:%s cur_dts:%s st:%d pc:%p duration:%d\n",
+ presentation_delayed, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), pkt->stream_index, pc, pkt->duration);
/* interpolate PTS and DTS if they are not present */
//We skip H264 currently because delay and has_b_frames are not reliably set
if((delay==0 || (delay==1 && pc)) && st->codec->codec_id != AV_CODEC_ID_H264){
/* PTS = presentation timestamp */
if (pkt->dts == AV_NOPTS_VALUE)
pkt->dts = st->last_IP_pts;
- update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts);
+ update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt);
if (pkt->dts == AV_NOPTS_VALUE)
pkt->dts = st->cur_dts;
by knowing the future */
} else if (pkt->pts != AV_NOPTS_VALUE ||
pkt->dts != AV_NOPTS_VALUE ||
- pkt->duration ||
- st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+ pkt->duration ) {
int duration = pkt->duration;
- if (!duration && st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- ff_compute_frame_duration(&num, &den, st, pc, pkt);
- if (den && num) {
- duration = av_rescale_rnd(1, num * (int64_t)st->time_base.den,
- den * (int64_t)st->time_base.num,
- AV_ROUND_DOWN);
- if (duration != 0 && s->packet_buffer) {
- update_initial_durations(s, st, pkt->stream_index,
- duration);
- }
+
+ if(st->cur_dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && duration){
+ int64_t old_diff= FFABS(st->cur_dts - duration - pkt->pts);
+ int64_t new_diff= FFABS(st->cur_dts - pkt->pts);
+ if( old_diff < new_diff && old_diff < (duration>>3)
+ && st->codec->codec_type == AVMEDIA_TYPE_VIDEO
+ && (!strcmp(s->iformat->name, "mpeg") ||
+ !strcmp(s->iformat->name, "mpegts"))){
+ pkt->pts += duration;
+ av_log(s, AV_LOG_WARNING, "Adjusting PTS forward\n");
+// av_log(NULL, AV_LOG_DEBUG, "id:%d old:%"PRId64" new:%"PRId64" dur:%d cur:%s size:%d\n",
+// pkt->stream_index, old_diff, new_diff, pkt->duration, av_ts2str(st->cur_dts), pkt->size);
}
}
- if (pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE ||
- duration) {
- /* presentation is not delayed : PTS and DTS are the same */
- if (pkt->pts == AV_NOPTS_VALUE)
- pkt->pts = pkt->dts;
- update_initial_timestamps(s, pkt->stream_index, pkt->pts,
- pkt->pts);
- if (pkt->pts == AV_NOPTS_VALUE)
- pkt->pts = st->cur_dts;
- pkt->dts = pkt->pts;
- if (pkt->pts != AV_NOPTS_VALUE)
- st->cur_dts = pkt->pts + duration;
- }
+ /* presentation is not delayed : PTS and DTS are the same */
+ if (pkt->pts == AV_NOPTS_VALUE)
+ pkt->pts = pkt->dts;
+ update_initial_timestamps(s, pkt->stream_index, pkt->pts,
+ pkt->pts, pkt);
+ if (pkt->pts == AV_NOPTS_VALUE)
+ pkt->pts = st->cur_dts;
+ pkt->dts = pkt->pts;
+ if (pkt->pts != AV_NOPTS_VALUE)
+ st->cur_dts = pkt->pts + duration;
}
}
- if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
+ if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)){
st->pts_buffer[0]= pkt->pts;
for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
if(pkt->dts == AV_NOPTS_VALUE)
pkt->dts= st->pts_buffer[0];
- if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
- update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts); // this should happen on the first packet
- }
- if(pkt->dts > st->cur_dts)
- st->cur_dts = pkt->dts;
}
+ if(st->codec->codec_id == AV_CODEC_ID_H264){ // we skipped it above so we try here
+ update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts, pkt); // this should happen on the first packet
+ }
+ if(pkt->dts > st->cur_dts)
+ st->cur_dts = pkt->dts;
- av_dlog(NULL,
- "OUTdelayed:%d/%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64"\n",
- presentation_delayed, delay, pkt->pts, pkt->dts, st->cur_dts);
+ av_dlog(NULL, "OUTdelayed:%d/%d pts:%s, dts:%s cur_dts:%s\n",
+ presentation_delayed, delay, av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts));
/* update flags */
- if (is_intra_only(st->codec->codec_id))
+ if (is_intra_only(st->codec))
pkt->flags |= AV_PKT_FLAG_KEY;
if (pc)
pkt->convergence_duration = pc->convergence_duration;
av_init_packet(&flush_pkt);
pkt = &flush_pkt;
got_output = 1;
+ } else if (!size && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+ // preserve 0-size sync packets
+ compute_pkt_fields(s, st, st->parser, pkt);
}
while (size > 0 || (pkt == &flush_pkt && got_output)) {
pkt->pts, pkt->dts, pkt->pos);
pkt->pts = pkt->dts = AV_NOPTS_VALUE;
+ pkt->pos = -1;
/* increment read pointer */
data += len;
size -= len;
out_pkt.dts = st->parser->dts;
out_pkt.pos = st->parser->pos;
+ if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
+ out_pkt.pos = st->parser->frame_offset;
+
if (st->parser->key_frame == 1 ||
(st->parser->key_frame == -1 &&
st->parser->pict_type == AV_PICTURE_TYPE_I))
out_pkt.flags |= AV_PKT_FLAG_KEY;
- compute_pkt_fields(s, st, st->parser, &out_pkt);
+ if(st->parser->key_frame == -1 && st->parser->pict_type==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
+ out_pkt.flags |= AV_PKT_FLAG_KEY;
- if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
- out_pkt.flags & AV_PKT_FLAG_KEY) {
- ff_reduce_index(s, st->index);
- av_add_index_entry(st, st->parser->frame_offset, out_pkt.dts,
- 0, 0, AVINDEX_KEYFRAME);
- }
+ compute_pkt_fields(s, st, st->parser, &out_pkt);
if (out_pkt.data == pkt->data && out_pkt.size == pkt->size) {
out_pkt.destruct = pkt->destruct;
if (cur_pkt.pts != AV_NOPTS_VALUE &&
cur_pkt.dts != AV_NOPTS_VALUE &&
cur_pkt.pts < cur_pkt.dts) {
- av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%"PRId64", dts=%"PRId64", size=%d\n",
+ av_log(s, AV_LOG_WARNING, "Invalid timestamps stream=%d, pts=%s, dts=%s, size=%d\n",
cur_pkt.stream_index,
- cur_pkt.pts,
- cur_pkt.dts,
+ av_ts2str(cur_pkt.pts),
+ av_ts2str(cur_pkt.dts),
cur_pkt.size);
}
if (s->debug & FF_FDEBUG_TS)
- av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%"PRId64", dts=%"PRId64", size=%d, duration=%d, flags=%d\n",
+ av_log(s, AV_LOG_DEBUG, "ff_read_packet stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
cur_pkt.stream_index,
- cur_pkt.pts,
- cur_pkt.dts,
+ av_ts2str(cur_pkt.pts),
+ av_ts2str(cur_pkt.dts),
cur_pkt.size,
cur_pkt.duration,
cur_pkt.flags);
if (st->need_parsing && !st->parser && !(s->flags & AVFMT_FLAG_NOPARSE)) {
st->parser = av_parser_init(st->codec->codec_id);
if (!st->parser) {
+ av_log(s, AV_LOG_VERBOSE, "parser not found for codec "
+ "%s, packets or times may be invalid.\n",
+ avcodec_get_name(st->codec->codec_id));
/* no parser available: just output the raw packets */
st->need_parsing = AVSTREAM_PARSE_NONE;
} else if(st->need_parsing == AVSTREAM_PARSE_HEADERS) {
st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
} else if(st->need_parsing == AVSTREAM_PARSE_FULL_ONCE) {
st->parser->flags |= PARSER_FLAG_ONCE;
+ } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
+ st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
}
}
/* free packet */
av_free_packet(&cur_pkt);
}
+ if (pkt->flags & AV_PKT_FLAG_KEY)
+ st->skip_to_keyframe = 0;
+ if (st->skip_to_keyframe) {
+ av_free_packet(&cur_pkt);
+ got_packet = 0;
+ }
}
if (!got_packet && s->parse_queue)
ret = read_from_packet_buffer(&s->parse_queue, &s->parse_queue_end, pkt);
if(s->debug & FF_FDEBUG_TS)
- av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%"PRId64", dts=%"PRId64", size=%d, duration=%d, flags=%d\n",
+ av_log(s, AV_LOG_DEBUG, "read_frame_internal stream=%d, pts=%s, dts=%s, size=%d, duration=%d, flags=%d\n",
pkt->stream_index,
- pkt->pts,
- pkt->dts,
+ av_ts2str(pkt->pts),
+ av_ts2str(pkt->dts),
pkt->size,
pkt->duration,
pkt->flags);
{
const int genpts = s->flags & AVFMT_FLAG_GENPTS;
int eof = 0;
+ int ret;
+ AVStream *st;
- if (!genpts)
- return s->packet_buffer ? read_from_packet_buffer(&s->packet_buffer,
- &s->packet_buffer_end,
- pkt) :
- read_frame_internal(s, pkt);
+ if (!genpts) {
+ ret = s->packet_buffer ?
+ read_from_packet_buffer(&s->packet_buffer, &s->packet_buffer_end, pkt) :
+ read_frame_internal(s, pkt);
+ if (ret < 0)
+ return ret;
+ goto return_packet;
+ }
for (;;) {
- int ret;
AVPacketList *pktl = s->packet_buffer;
if (pktl) {
if (next_pkt->dts != AV_NOPTS_VALUE) {
int wrap_bits = s->streams[next_pkt->stream_index]->pts_wrap_bits;
+ // last dts seen for this stream. if any of packets following
+ // current one had no dts, we will set this to AV_NOPTS_VALUE.
+ int64_t last_dts = next_pkt->dts;
while (pktl && next_pkt->pts == AV_NOPTS_VALUE) {
if (pktl->pkt.stream_index == next_pkt->stream_index &&
- (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0) &&
- av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
- next_pkt->pts = pktl->pkt.dts;
+ (av_compare_mod(next_pkt->dts, pktl->pkt.dts, 2LL << (wrap_bits - 1)) < 0)) {
+ if (av_compare_mod(pktl->pkt.pts, pktl->pkt.dts, 2LL << (wrap_bits - 1))) { //not b frame
+ next_pkt->pts = pktl->pkt.dts;
+ }
+ if (last_dts != AV_NOPTS_VALUE) {
+ // Once last dts was set to AV_NOPTS_VALUE, we don't change it.
+ last_dts = pktl->pkt.dts;
+ }
}
pktl = pktl->next;
}
+ if (eof && next_pkt->pts == AV_NOPTS_VALUE && last_dts != AV_NOPTS_VALUE) {
+ // Fixing the last reference frame had none pts issue (For MXF etc).
+ // We only do this when
+ // 1. eof.
+ // 2. we are not able to resolve a pts value for current packet.
+ // 3. the packets for this stream at the end of the files had valid dts.
+ next_pkt->pts = last_dts + next_pkt->duration;
+ }
pktl = s->packet_buffer;
}
/* read packet from packet buffer, if there is data */
if (!(next_pkt->pts == AV_NOPTS_VALUE &&
- next_pkt->dts != AV_NOPTS_VALUE && !eof))
- return read_from_packet_buffer(&s->packet_buffer,
+ next_pkt->dts != AV_NOPTS_VALUE && !eof)) {
+ ret = read_from_packet_buffer(&s->packet_buffer,
&s->packet_buffer_end, pkt);
+ goto return_packet;
+ }
}
ret = read_frame_internal(s, pkt);
&s->packet_buffer_end)) < 0)
return AVERROR(ENOMEM);
}
+
+return_packet:
+
+ st = s->streams[pkt->stream_index];
+ if (st->skip_samples) {
+ uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
+ AV_WL32(p, st->skip_samples);
+ av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", st->skip_samples);
+ st->skip_samples = 0;
+ }
+
+ if ((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY) {
+ ff_reduce_index(s, st->index);
+ av_add_index_entry(st, pkt->pos, pkt->dts, 0, 0, AVINDEX_KEYFRAME);
+ }
+
+ if (is_relative(pkt->dts))
+ pkt->dts -= RELATIVE_TS_BASE;
+ if (is_relative(pkt->pts))
+ pkt->pts -= RELATIVE_TS_BASE;
+
+ return ret;
}
/* XXX: suppress the packet queue */
st->parser = NULL;
}
st->last_IP_pts = AV_NOPTS_VALUE;
- st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
+ if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
+ else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
st->reference_dts = AV_NOPTS_VALUE;
st->probe_packets = MAX_PROBE_PACKETS;
if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
return -1;
+ if(timestamp == AV_NOPTS_VALUE)
+ return AVERROR(EINVAL);
+
+ if (is_relative(timestamp)) //FIXME this maintains previous behavior but we should shift by the correct offset once known
+ timestamp -= RELATIVE_TS_BASE;
+
entries = av_fast_realloc(*index_entries,
index_entries_allocated_size,
(*nb_index_entries + 1) *
int av_add_index_entry(AVStream *st,
int64_t pos, int64_t timestamp, int size, int distance, int flags)
{
+ timestamp = wrap_timestamp(st, timestamp);
return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
&st->index_entries_allocated_size, pos,
timestamp, size, distance, flags);
wanted_timestamp, flags);
}
+static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
+ int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
+{
+ return wrap_timestamp(s->streams[stream_index], read_timestamp(s, stream_index, ppos, pos_limit));
+}
+
int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
{
AVInputFormat *avif= s->iformat;
if (stream_index < 0)
return -1;
- av_dlog(s, "read_seek: %d %"PRId64"\n", stream_index, target_ts);
+ av_dlog(s, "read_seek: %d %s\n", stream_index, av_ts2str(target_ts));
ts_max=
ts_min= AV_NOPTS_VALUE;
if(e->timestamp <= target_ts || e->pos == e->min_distance){
pos_min= e->pos;
ts_min= e->timestamp;
- av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%"PRId64"\n",
- pos_min,ts_min);
+ av_dlog(s, "using cached pos_min=0x%"PRIx64" dts_min=%s\n",
+ pos_min, av_ts2str(ts_min));
}else{
assert(index==0);
}
pos_max= e->pos;
ts_max= e->timestamp;
pos_limit= pos_max - e->min_distance;
- av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%"PRId64"\n",
- pos_max,pos_limit, ts_max);
+ av_dlog(s, "using cached pos_max=0x%"PRIx64" pos_limit=0x%"PRIx64" dts_max=%s\n",
+ pos_max, pos_limit, av_ts2str(ts_max));
}
}
if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
return ret;
+ ff_read_frame_flush(s);
ff_update_cur_dts(s, st, ts);
return 0;
int64_t start_pos, filesize;
int no_change;
- av_dlog(s, "gen_seek: %d %"PRId64"\n", stream_index, target_ts);
+ av_dlog(s, "gen_seek: %d %s\n", stream_index, av_ts2str(target_ts));
if(ts_min == AV_NOPTS_VALUE){
pos_min = s->data_offset;
- ts_min = read_timestamp(s, stream_index, &pos_min, INT64_MAX);
+ ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
if (ts_min == AV_NOPTS_VALUE)
return -1;
}
+ if(ts_min >= target_ts){
+ *ts_ret= ts_min;
+ return pos_min;
+ }
+
if(ts_max == AV_NOPTS_VALUE){
int step= 1024;
filesize = avio_size(s->pb);
pos_max = filesize - 1;
do{
pos_max -= step;
- ts_max = read_timestamp(s, stream_index, &pos_max, pos_max + step);
+ ts_max = ff_read_timestamp(s, stream_index, &pos_max, pos_max + step, read_timestamp);
step += step;
}while(ts_max == AV_NOPTS_VALUE && pos_max >= step);
if (ts_max == AV_NOPTS_VALUE)
for(;;){
int64_t tmp_pos= pos_max + 1;
- int64_t tmp_ts= read_timestamp(s, stream_index, &tmp_pos, INT64_MAX);
+ int64_t tmp_ts= ff_read_timestamp(s, stream_index, &tmp_pos, INT64_MAX, read_timestamp);
if(tmp_ts == AV_NOPTS_VALUE)
break;
ts_max= tmp_ts;
pos_limit= pos_max;
}
+ if(ts_max <= target_ts){
+ *ts_ret= ts_max;
+ return pos_max;
+ }
+
if(ts_min > ts_max){
return -1;
}else if(ts_min == ts_max){
no_change=0;
while (pos_min < pos_limit) {
- av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%"PRId64" dts_max=%"PRId64"\n",
- pos_min, pos_max, ts_min, ts_max);
+ av_dlog(s, "pos_min=0x%"PRIx64" pos_max=0x%"PRIx64" dts_min=%s dts_max=%s\n",
+ pos_min, pos_max, av_ts2str(ts_min), av_ts2str(ts_max));
assert(pos_limit <= pos_max);
if(no_change==0){
pos= pos_limit;
start_pos= pos;
- ts = read_timestamp(s, stream_index, &pos, INT64_MAX); //may pass pos_limit instead of -1
+ ts = ff_read_timestamp(s, stream_index, &pos, INT64_MAX, read_timestamp); //may pass pos_limit instead of -1
if(pos == pos_max)
no_change++;
else
no_change=0;
- av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %"PRId64" %"PRId64" %"PRId64" target:%"PRId64" limit:%"PRId64" start:%"PRId64" noc:%d\n",
- pos_min, pos, pos_max, ts_min, ts, ts_max, target_ts,
+ av_dlog(s, "%"PRId64" %"PRId64" %"PRId64" / %s %s %s target:%s limit:%"PRId64" start:%"PRId64" noc:%d\n",
+ pos_min, pos, pos_max,
+ av_ts2str(ts_min), av_ts2str(ts), av_ts2str(ts_max), av_ts2str(target_ts),
pos_limit, start_pos, no_change);
if(ts == AV_NOPTS_VALUE){
av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
ts = (flags & AVSEEK_FLAG_BACKWARD) ? ts_min : ts_max;
+#if 0
pos_min = pos;
- ts_min = read_timestamp(s, stream_index, &pos_min, INT64_MAX);
+ ts_min = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
pos_min++;
- ts_max = read_timestamp(s, stream_index, &pos_min, INT64_MAX);
- av_dlog(s, "pos=0x%"PRIx64" %"PRId64"<=%"PRId64"<=%"PRId64"\n",
- pos, ts_min, target_ts, ts_max);
+ ts_max = ff_read_timestamp(s, stream_index, &pos_min, INT64_MAX, read_timestamp);
+ av_dlog(s, "pos=0x%"PRIx64" %s<=%s<=%s\n",
+ pos, av_ts2str(ts_min), av_ts2str(target_ts), av_ts2str(ts_max));
+#endif
*ts_ret= ts;
return pos;
}
if(index < 0 || index==st->nb_index_entries-1){
AVPacket pkt;
+ int nonkey=0;
if(st->nb_index_entries){
assert(st->index_entries);
if (read_status < 0)
break;
av_free_packet(&pkt);
- if(stream_index == pkt.stream_index){
- if((pkt.flags & AV_PKT_FLAG_KEY) && pkt.dts > timestamp)
+ if(stream_index == pkt.stream_index && pkt.dts > timestamp){
+ if(pkt.flags & AV_PKT_FLAG_KEY)
+ break;
+ if(nonkey++ > 1000 && st->codec->codec_id != AV_CODEC_ID_CDGRAPHICS){
+ 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);
break;
+ }
}
}
index = av_index_search_timestamp(st, timestamp, flags);
int ret = seek_frame_internal(s, stream_index, timestamp, flags);
if (ret >= 0)
- queue_attached_pictures(s);
+ avformat_queue_attached_pictures(s);
return ret;
}
ret = s->iformat->read_seek2(s, stream_index, min_ts, ts, max_ts, flags);
if (ret >= 0)
- queue_attached_pictures(s);
+ avformat_queue_attached_pictures(s);
return ret;
}
}
//Fallback to old API if new is not implemented but old is
- //Note the old has somewat different sematics
- if(s->iformat->read_seek || 1)
- return av_seek_frame(s, stream_index, ts, flags | ((uint64_t)ts - min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0));
+ //Note the old has somewhat different semantics
+ if (s->iformat->read_seek || 1) {
+ int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
+ int ret = av_seek_frame(s, stream_index, ts, flags | dir);
+ if (ret<0 && ts != min_ts && max_ts != ts) {
+ ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
+ if (ret >= 0)
+ ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
+ }
+ return ret;
+ }
// try some generic seek like seek_frame_generic() but with new ts semantics
}
*/
static void update_stream_timings(AVFormatContext *ic)
{
- int64_t start_time, start_time1, end_time, end_time1;
+ int64_t start_time, start_time1, start_time_text, end_time, end_time1;
int64_t duration, duration1, filesize;
int i;
AVStream *st;
+ AVProgram *p;
start_time = INT64_MAX;
+ start_time_text = INT64_MAX;
end_time = INT64_MIN;
duration = INT64_MIN;
for(i = 0;i < ic->nb_streams; i++) {
st = ic->streams[i];
if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
- start_time = FFMIN(start_time, start_time1);
+ if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) {
+ if (start_time1 < start_time_text)
+ start_time_text = start_time1;
+ } else
+ start_time = FFMIN(start_time, start_time1);
+ end_time1 = AV_NOPTS_VALUE;
if (st->duration != AV_NOPTS_VALUE) {
end_time1 = start_time1
+ av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
end_time = FFMAX(end_time, end_time1);
}
+ for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){
+ if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1)
+ p->start_time = start_time1;
+ if(p->end_time < end_time1)
+ p->end_time = end_time1;
+ }
}
if (st->duration != AV_NOPTS_VALUE) {
duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
duration = FFMAX(duration, duration1);
}
}
+ if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
+ start_time = start_time_text;
+ else if(start_time > start_time_text)
+ av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
+
if (start_time != INT64_MAX) {
ic->start_time = start_time;
- if (end_time != INT64_MIN)
- duration = FFMAX(duration, end_time - start_time);
+ if (end_time != INT64_MIN) {
+ if (ic->nb_programs) {
+ for (i=0; i<ic->nb_programs; i++) {
+ p = ic->programs[i];
+ if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time)
+ duration = FFMAX(duration, p->end_time - p->start_time);
+ }
+ } else
+ duration = FFMAX(duration, end_time - start_time);
+ }
}
- if (duration != INT64_MIN) {
+ if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) {
ic->duration = duration;
- if (ic->pb && (filesize = avio_size(ic->pb)) > 0) {
+ }
+ if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) {
/* compute the bitrate */
ic->bit_rate = (double)filesize * 8.0 * AV_TIME_BASE /
(double)ic->duration;
}
- }
}
static void fill_all_stream_timings(AVFormatContext *ic)
}
}
-#define DURATION_MAX_READ_SIZE 250000
-#define DURATION_MAX_RETRY 3
+#define DURATION_MAX_READ_SIZE 250000LL
+#define DURATION_MAX_RETRY 4
/* only usable for MPEG-PS streams */
static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
file_size && ic->pb->seekable) {
/* get accurate estimate from the PTSes */
estimate_timings_from_pts(ic, old_offset);
+ ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
} else if (has_duration(ic)) {
/* at least one component has timings - we use them for all
the components */
fill_all_stream_timings(ic);
+ ic->duration_estimation_method = AVFMT_DURATION_FROM_STREAM;
} else {
av_log(ic, AV_LOG_WARNING, "Estimating duration from bitrate, this may be inaccurate\n");
/* less precise: use bitrate info */
estimate_timings_from_bit_rate(ic);
+ ic->duration_estimation_method = AVFMT_DURATION_FROM_BITRATE;
}
update_stream_timings(ic);
}
}
-static int has_codec_parameters(AVStream *st)
+static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
{
AVCodecContext *avctx = st->codec;
- int val;
+
+#define FAIL(errmsg) do { \
+ if (errmsg_ptr) \
+ *errmsg_ptr = errmsg; \
+ return 0; \
+ } while (0)
+
switch (avctx->codec_type) {
case AVMEDIA_TYPE_AUDIO:
- val = avctx->sample_rate && avctx->channels;
+ if (!avctx->frame_size && determinable_frame_size(avctx))
+ FAIL("unspecified frame size");
if (st->info->found_decoder >= 0 && avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
- return 0;
+ FAIL("unspecified sample format");
+ if (!avctx->sample_rate)
+ FAIL("unspecified sample rate");
+ if (!avctx->channels)
+ FAIL("unspecified number of channels");
+ if (st->info->found_decoder >= 0 && !st->nb_decoded_frames && avctx->codec_id == AV_CODEC_ID_DTS)
+ FAIL("no decodable DTS frames");
break;
case AVMEDIA_TYPE_VIDEO:
- val = avctx->width;
+ if (!avctx->width)
+ FAIL("unspecified size");
if (st->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
- return 0;
+ FAIL("unspecified pixel format");
break;
- default:
- val = 1;
+ case AVMEDIA_TYPE_SUBTITLE:
+ if (avctx->codec_id == AV_CODEC_ID_HDMV_PGS_SUBTITLE && !avctx->width)
+ FAIL("unspecified size");
break;
+ case AVMEDIA_TYPE_DATA:
+ if(avctx->codec_id == AV_CODEC_ID_NONE) return 1;
}
- return avctx->codec_id != AV_CODEC_ID_NONE && val != 0;
-}
-static int has_decode_delay_been_guessed(AVStream *st)
-{
- return st->codec->codec_id != AV_CODEC_ID_H264 ||
- st->info->nb_decoded_frames >= 6;
+ if (avctx->codec_id == AV_CODEC_ID_NONE)
+ FAIL("unknown codec");
+ return 1;
}
/* returns 1 or 0 if or if not decoded data was returned, or a negative error */
const AVCodec *codec;
int got_picture = 1, ret = 0;
AVFrame *frame = avcodec_alloc_frame();
+ AVSubtitle subtitle;
AVPacket pkt = *avpkt;
if (!frame)
while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
ret >= 0 &&
- (!has_codec_parameters(st) ||
+ (!has_codec_parameters(st, NULL) ||
!has_decode_delay_been_guessed(st) ||
(!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))) {
got_picture = 0;
case AVMEDIA_TYPE_AUDIO:
ret = avcodec_decode_audio4(st->codec, frame, &got_picture, &pkt);
break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ ret = avcodec_decode_subtitle2(st->codec, &subtitle,
+ &got_picture, &pkt);
+ ret = pkt.size;
+ break;
default:
break;
}
if (ret >= 0) {
if (got_picture)
- st->info->nb_decoded_frames++;
+ st->nb_decoded_frames++;
pkt.data += ret;
pkt.size -= ret;
ret = got_picture;
}
}
+ if(!pkt.data && !got_picture)
+ ret = -1;
+
fail:
avcodec_free_frame(&frame);
return ret;
default: return AV_CODEC_ID_NONE;
}
} else {
+ bps += 7;
bps >>= 3;
if (sflags & (1 << (bps - 1))) {
switch (bps) {
}
static int get_std_framerate(int i){
- if(i<60*12) return i*1001;
- else return ((const int[]){24,30,60,12,15})[i-60*12]*1000*12;
+ if(i<60*12) return (i+1)*1001;
+ else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12;
}
/*
|| c->time_base.den < 5L*c->time_base.num
/* || c->codec_tag == AV_RL32("DIVX")
|| c->codec_tag == AV_RL32("XVID")*/
+ || c->codec_tag == AV_RL32("mp4v")
|| c->codec_id == AV_CODEC_ID_MPEG2VIDEO
|| c->codec_id == AV_CODEC_ID_H264
)
return 0;
}
+#if FF_API_FORMAT_PARAMETERS
+int av_find_stream_info(AVFormatContext *ic)
+{
+ return avformat_find_stream_info(ic, NULL);
+}
+#endif
+
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
{
int i, count, ret, read_size, j;
AVPacket pkt1, *pkt;
int64_t old_offset = avio_tell(ic->pb);
int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those
+ int flush_codecs = ic->probesize > 0;
+
+ if(ic->pb)
+ av_log(ic, AV_LOG_DEBUG, "File position before avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
for(i=0;i<ic->nb_streams;i++) {
const AVCodec *codec;
AVDictionary *thread_opt = NULL;
st = ic->streams[i];
+ if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
+ st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
+/* if(!st->time_base.num)
+ st->time_base= */
+ if(!st->codec->time_base.num)
+ st->codec->time_base= st->time_base;
+ }
//only for the split stuff
if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {
st->parser = av_parser_init(st->codec->codec_id);
- if(st->need_parsing == AVSTREAM_PARSE_HEADERS && st->parser){
- st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
+ if(st->parser){
+ if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
+ st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
+ } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {
+ st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;
+ }
+ } else if (st->need_parsing) {
+ av_log(ic, AV_LOG_VERBOSE, "parser not found for codec "
+ "%s, packets or times may be invalid.\n",
+ avcodec_get_name(st->codec->codec_id));
}
}
codec = st->codec->codec ? st->codec->codec :
: &thread_opt);
//try to just open decoders, in case this is enough to get parameters
- if (!has_codec_parameters(st)) {
+ if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {
if (codec && !st->codec->codec)
avcodec_open2(st->codec, codec, options ? &options[i]
: &thread_opt);
int fps_analyze_framecount = 20;
st = ic->streams[i];
- if (!has_codec_parameters(st))
+ if (!has_codec_parameters(st, NULL))
break;
/* if the timebase is coarse (like the usual millisecond precision
of mkv), we need to analyze more frames to reliably arrive at
if (ic->fps_probe_size >= 0)
fps_analyze_framecount = ic->fps_probe_size;
/* variable fps and no guess at the real fps */
- if( tb_unreliable(st->codec) && !st->avg_frame_rate.num
- && st->codec_info_nb_frames < fps_analyze_framecount
+ if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
+ && st->info->duration_count < fps_analyze_framecount
&& st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
break;
if(st->parser && st->parser->parser->split && !st->codec->extradata)
/* if we found the info for all the codecs, we can stop */
ret = count;
av_log(ic, AV_LOG_DEBUG, "All info found\n");
+ flush_codecs = 0;
break;
}
}
if (read_size >= ic->probesize) {
ret = count;
av_log(ic, AV_LOG_DEBUG, "Probe buffer size limit %d reached\n", ic->probesize);
+ for (i = 0; i < ic->nb_streams; i++)
+ if (!ic->streams[i]->r_frame_rate.num &&
+ ic->streams[i]->info->duration_count <= 1)
+ av_log(ic, AV_LOG_WARNING,
+ "Stream #%d: not enough frames to estimate rate; "
+ "consider increasing probesize\n", i);
break;
}
if (ret < 0) {
/* EOF or error*/
- AVPacket empty_pkt = { 0 };
- int err = 0;
- av_init_packet(&empty_pkt);
-
- ret = -1; /* we could not have all the codec parameters before EOF */
- for(i=0;i<ic->nb_streams;i++) {
- st = ic->streams[i];
-
- /* flush the decoders */
- if (st->info->found_decoder == 1) {
- do {
- err = try_decode_frame(st, &empty_pkt,
- (options && i < orig_nb_streams) ?
- &options[i] : NULL);
- } while (err > 0 && !has_codec_parameters(st));
- }
-
- if (err < 0) {
- av_log(ic, AV_LOG_WARNING,
- "decoding for stream %d failed\n", st->index);
- } else if (!has_codec_parameters(st)) {
- char buf[256];
- avcodec_string(buf, sizeof(buf), st->codec, 0);
- av_log(ic, AV_LOG_WARNING,
- "Could not find codec parameters (%s)\n", buf);
- } else {
- ret = 0;
- }
- }
break;
}
/* check for non-increasing dts */
if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
st->info->fps_last_dts >= pkt->dts) {
- av_log(ic, AV_LOG_WARNING, "Non-increasing DTS in stream %d: "
+ av_log(ic, AV_LOG_DEBUG, "Non-increasing DTS in stream %d: "
"packet %d with DTS %"PRId64", packet %d with DTS "
"%"PRId64"\n", st->index, st->info->fps_last_dts_idx,
st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);
}
st->info->fps_last_dts = pkt->dts;
st->info->fps_last_dts_idx = st->codec_info_nb_frames;
-
- /* check max_analyze_duration */
- if (av_rescale_q(pkt->dts - st->info->fps_first_dts, st->time_base,
- AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
- av_log(ic, AV_LOG_WARNING, "max_analyze_duration reached\n");
+ }
+ if (st->codec_info_nb_frames>1) {
+ int64_t t=0;
+ if (st->time_base.den > 0)
+ t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
+ if (st->avg_frame_rate.num > 0)
+ t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
+
+ if (t >= ic->max_analyze_duration) {
+ av_log(ic, AV_LOG_WARNING, "max_analyze_duration %d reached at %"PRId64"\n", ic->max_analyze_duration, t);
break;
}
+ if (pkt->duration) {
+ st->info->codec_info_duration += pkt->duration;
+ st->info->codec_info_duration_fields += st->parser && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
+ }
}
#if FF_API_R_FRAME_RATE
{
int64_t last = st->info->last_dts;
if(pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last){
+ double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);
int64_t duration= pkt->dts - last;
- double dur= duration * av_q2d(st->time_base);
- if (st->info->duration_count < 2)
- memset(st->info->duration_error, 0, sizeof(st->info->duration_error));
- for (i=1; i<FF_ARRAY_ELEMS(st->info->duration_error); i++) {
+// if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
+// av_log(NULL, AV_LOG_ERROR, "%f\n", dts);
+ for (i=0; i<FF_ARRAY_ELEMS(st->info->duration_error[0][0]); i++) {
int framerate= get_std_framerate(i);
- int ticks= lrintf(dur*framerate/(1001*12));
- double error = dur - (double)ticks*1001*12 / framerate;
- st->info->duration_error[i] += error*error;
+ double sdts= dts*framerate/(1001*12);
+ for(j=0; j<2; j++){
+ int64_t ticks= llrint(sdts+j*0.5);
+ double error= sdts - ticks + j*0.5;
+ st->info->duration_error[j][0][i] += error;
+ st->info->duration_error[j][1][i] += error*error;
+ }
}
st->info->duration_count++;
// ignore the first 4 values, they might have some random jitter
- if (st->info->duration_count > 3)
+ if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))
st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);
}
- if (last == AV_NOPTS_VALUE || st->info->duration_count <= 1)
+ if (pkt->dts != AV_NOPTS_VALUE)
st->info->last_dts = pkt->dts;
}
#endif
count++;
}
+ if (flush_codecs) {
+ AVPacket empty_pkt = { 0 };
+ int err = 0;
+ av_init_packet(&empty_pkt);
+
+ ret = -1; /* we could not have all the codec parameters before EOF */
+ for(i=0;i<ic->nb_streams;i++) {
+ const char *errmsg;
+
+ st = ic->streams[i];
+
+ /* flush the decoders */
+ if (st->info->found_decoder == 1) {
+ do {
+ err = try_decode_frame(st, &empty_pkt,
+ (options && i < orig_nb_streams) ?
+ &options[i] : NULL);
+ } while (err > 0 && !has_codec_parameters(st, NULL));
+
+ if (err < 0) {
+ av_log(ic, AV_LOG_INFO,
+ "decoding for stream %d failed\n", st->index);
+ }
+ }
+
+ if (!has_codec_parameters(st, &errmsg)) {
+ char buf[256];
+ avcodec_string(buf, sizeof(buf), st->codec, 0);
+ av_log(ic, AV_LOG_WARNING,
+ "Could not find codec parameters for stream %d (%s): %s\n"
+ "Consider increasing the value for the 'analyzeduration' and 'probesize' options\n",
+ i, buf, errmsg);
+ } else {
+ ret = 0;
+ }
+ }
+ }
+
// close codecs which were opened in try_decode_frame()
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){
+ uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
+ if(ff_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
+ st->codec->codec_tag= tag;
+ }
+
/* estimate average framerate if not set by demuxer */
- if (!st->avg_frame_rate.num && st->info->fps_last_dts != st->info->fps_first_dts) {
- int64_t delta_dts = st->info->fps_last_dts - st->info->fps_first_dts;
- int delta_packets = st->info->fps_last_dts_idx - st->info->fps_first_dts_idx;
+ if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {
int best_fps = 0;
double best_error = 0.01;
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
- delta_packets*(int64_t)st->time_base.den,
- delta_dts*(int64_t)st->time_base.num, 60000);
+ st->info->codec_info_duration_fields*(int64_t)st->time_base.den,
+ st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);
/* round guessed framerate to a "standard" framerate if it's
* within 1% of the original estimate*/
best_fps, 12*1001, INT_MAX);
}
}
-#if FF_API_R_FRAME_RATE
// the check for tb_unreliable() is not completely correct, since this is not about handling
// a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
// ipmovie.c produces.
- if (tb_unreliable(st->codec) && st->info->duration_count > 15 && st->info->duration_gcd > 1 && !st->r_frame_rate.num)
+ if (tb_unreliable(st->codec) && st->info->duration_count > 15 && st->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num)
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, st->time_base.den, st->time_base.num * st->info->duration_gcd, INT_MAX);
- if (st->info->duration_count && !st->r_frame_rate.num
+ if (st->info->duration_count>1 && !st->r_frame_rate.num
&& tb_unreliable(st->codec)) {
int num = 0;
- double best_error= 2*av_q2d(st->time_base);
- best_error = best_error*best_error*st->info->duration_count*1000*12*30;
-
- for (j=1; j<FF_ARRAY_ELEMS(st->info->duration_error); j++) {
- double error = st->info->duration_error[j] * get_std_framerate(j);
- if(error < best_error){
- best_error= error;
- num = get_std_framerate(j);
+ double best_error= 0.01;
+
+ for (j=0; j<FF_ARRAY_ELEMS(st->info->duration_error[0][0]); j++) {
+ int k;
+
+ if(st->info->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))
+ continue;
+ if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))
+ continue;
+ for(k=0; k<2; k++){
+ int n= st->info->duration_count;
+ double a= st->info->duration_error[k][0][j] / n;
+ double error= st->info->duration_error[k][1][j]/n - a*a;
+
+ if(error < best_error && best_error> 0.000000001){
+ best_error= error;
+ num = get_std_framerate(j);
+ }
+ if(error < 0.02)
+ av_log(NULL, AV_LOG_DEBUG, "rfps: %f %f\n", get_std_framerate(j) / 12.0/1001, error);
}
}
// do not increase frame rate by more than 1 % in order to match a standard rate.
if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
}
-#endif
+
+ if (!st->r_frame_rate.num){
+ if( st->codec->time_base.den * (int64_t)st->time_base.num
+ <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){
+ st->r_frame_rate.num = st->codec->time_base.den;
+ st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;
+ }else{
+ st->r_frame_rate.num = st->time_base.den;
+ st->r_frame_rate.den = st->time_base.num;
+ }
+ }
}else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
if(!st->codec->bits_per_coded_sample)
st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
}
}
+ if(ic->probesize)
estimate_timings(ic, old_offset);
compute_chapters_end(ic);
ic->streams[i]->codec->thread_count = 0;
av_freep(&ic->streams[i]->info);
}
+ if(ic->pb)
+ av_log(ic, AV_LOG_DEBUG, "File position after avformat_find_stream_info() is %"PRId64"\n", avio_tell(ic->pb));
return ret;
}
-static AVProgram *find_program_from_stream(AVFormatContext *ic, int s)
+AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s)
{
int i, j;
- for (i = 0; i < ic->nb_programs; i++)
- for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
- if (ic->programs[i]->stream_index[j] == s)
- return ic->programs[i];
+ for (i = 0; i < ic->nb_programs; i++) {
+ if (ic->programs[i] == last) {
+ last = NULL;
+ } else {
+ if (!last)
+ for (j = 0; j < ic->programs[i]->nb_stream_indexes; j++)
+ if (ic->programs[i]->stream_index[j] == s)
+ return ic->programs[i];
+ }
+ }
return NULL;
}
int flags)
{
int i, nb_streams = ic->nb_streams;
- int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1;
+ int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
unsigned *program = NULL;
AVCodec *decoder = NULL, *best_decoder = NULL;
if (related_stream >= 0 && wanted_stream_nb < 0) {
- AVProgram *p = find_program_from_stream(ic, related_stream);
+ AVProgram *p = av_find_program_from_stream(ic, NULL, related_stream);
if (p) {
program = p->stream_index;
nb_streams = p->nb_stream_indexes;
continue;
}
}
- if (best_count >= st->codec_info_nb_frames)
+ count = st->codec_info_nb_frames;
+ bitrate = avctx->bit_rate;
+ multiframe = FFMIN(5, count);
+ if ((best_multiframe > multiframe) ||
+ (best_multiframe == multiframe && best_bitrate > bitrate) ||
+ (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
continue;
- best_count = st->codec_info_nb_frames;
+ best_count = count;
+ best_bitrate = bitrate;
+ best_multiframe = multiframe;
ret = real_stream_index;
best_decoder = decoder;
if (program && i == nb_streams - 1 && ret < 0) {
return AVERROR(ENOSYS);
}
+void ff_free_stream(AVFormatContext *s, AVStream *st){
+ av_assert0(s->nb_streams>0);
+ av_assert0(s->streams[ s->nb_streams-1 ] == st);
+
+ if (st->parser) {
+ av_parser_close(st->parser);
+ }
+ if (st->attached_pic.data)
+ av_free_packet(&st->attached_pic);
+ av_dict_free(&st->metadata);
+ av_freep(&st->index_entries);
+ av_freep(&st->codec->extradata);
+ av_freep(&st->codec->subtitle_header);
+ av_freep(&st->codec);
+ av_freep(&st->priv_data);
+ av_freep(&st->info);
+ av_freep(&st->probe_data.buf);
+ av_freep(&s->streams[ --s->nb_streams ]);
+}
+
void avformat_free_context(AVFormatContext *s)
{
int i;
- AVStream *st;
+
+ if (!s)
+ return;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
- for(i=0;i<s->nb_streams;i++) {
- /* free all data in a stream component */
- st = s->streams[i];
- if (st->parser) {
- av_parser_close(st->parser);
- }
- if (st->attached_pic.data)
- av_free_packet(&st->attached_pic);
- av_dict_free(&st->metadata);
- av_free(st->index_entries);
- av_free(st->codec->extradata);
- av_free(st->codec->subtitle_header);
- av_free(st->codec);
- av_free(st->priv_data);
- av_free(st->info);
- av_free(st);
+ for(i=s->nb_streams-1; i>=0; i--) {
+ ff_free_stream(s, s->streams[i]);
}
for(i=s->nb_programs-1; i>=0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->priv_data);
while(s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
- av_free(s->chapters[s->nb_chapters]);
+ av_freep(&s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
avio_close(pb);
}
-AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c)
+#if FF_API_NEW_STREAM
+AVStream *av_new_stream(AVFormatContext *s, int id)
+{
+ AVStream *st = avformat_new_stream(s, NULL);
+ if (st)
+ st->id = id;
+ return st;
+}
+#endif
+
+AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
{
AVStream *st;
int i;
av_free(st);
return NULL;
}
+ st->info->last_dts = AV_NOPTS_VALUE;
st->codec = avcodec_alloc_context3(c);
if (s->iformat) {
but durations get some timestamps, formats with some unknown
timestamps have their first few packets buffered and the
timestamps corrected before they are returned to the user */
- st->cur_dts = 0;
+ st->cur_dts = s->iformat ? RELATIVE_TS_BASE : 0;
st->first_dts = AV_NOPTS_VALUE;
st->probe_packets = MAX_PROBE_PACKETS;
+ st->pts_wrap_reference = AV_NOPTS_VALUE;
+ st->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
/* default pts setting is MPEG-like */
avpriv_set_pts_info(st, 33, 1, 90000);
program->discard = AVDISCARD_NONE;
}
program->id = id;
+ program->pts_wrap_reference = AV_NOPTS_VALUE;
+ program->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
+
+ program->start_time =
+ program->end_time = AV_NOPTS_VALUE;
return program;
}
av_log(ctx, AV_LOG_INFO, "%sMetadata:\n", indent);
while((tag=av_dict_get(m, "", tag, AV_DICT_IGNORE_SUFFIX))) {
- if(strcmp("language", tag->key))
- av_log(ctx, AV_LOG_INFO, "%s %-16s: %s\n", indent, tag->key, tag->value);
+ if(strcmp("language", tag->key)){
+ const char *p = tag->value;
+ av_log(ctx, AV_LOG_INFO, "%s %-16s: ", indent, tag->key);
+ while(*p) {
+ char tmp[256];
+ size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
+ av_strlcpy(tmp, p, FFMIN(sizeof(tmp), len+1));
+ av_log(ctx, AV_LOG_INFO, "%s", tmp);
+ p += len;
+ if (*p == 0xd) av_log(ctx, AV_LOG_INFO, " ");
+ if (*p == 0xa) av_log(ctx, AV_LOG_INFO, "\n%s %-16s: ", indent, "");
+ if (*p) p++;
+ }
+ av_log(ctx, AV_LOG_INFO, "\n");
+ }
}
}
}
int g = av_gcd(st->time_base.num, st->time_base.den);
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
avcodec_string(buf, sizeof(buf), st->codec, is_output);
- av_log(NULL, AV_LOG_INFO, " Stream #%d.%d", index, i);
+ av_log(NULL, AV_LOG_INFO, " Stream #%d:%d", index, i);
/* the pid is an important information, so we display it */
/* XXX: add a generic system */
if (flags & AVFMT_SHOW_IDS)
st->codec->width*st->sample_aspect_ratio.num,
st->codec->height*st->sample_aspect_ratio.den,
1024*1024);
- av_log(NULL, AV_LOG_INFO, ", PAR %d:%d DAR %d:%d",
+ av_log(NULL, AV_LOG_INFO, ", SAR %d:%d DAR %d:%d",
st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
display_aspect_ratio.num, display_aspect_ratio.den);
}
av_log(NULL, AV_LOG_INFO, " Duration: ");
if (ic->duration != AV_NOPTS_VALUE) {
int hours, mins, secs, us;
- secs = ic->duration / AV_TIME_BASE;
- us = ic->duration % AV_TIME_BASE;
+ int64_t duration = ic->duration + 5000;
+ secs = duration / AV_TIME_BASE;
+ us = duration % AV_TIME_BASE;
mins = secs / 60;
secs %= 60;
hours = mins / 60;
av_hex_dump(f, pkt->data, pkt->size);
}
+#if FF_API_PKT_DUMP
+void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload)
+{
+ AVRational tb = { 1, AV_TIME_BASE };
+ pkt_dump_internal(NULL, f, 0, pkt, dump_payload, tb);
+}
+#endif
+
void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st)
{
pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
}
+#if FF_API_PKT_DUMP
+void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, int dump_payload)
+{
+ AVRational tb = { 1, AV_TIME_BASE };
+ pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, tb);
+}
+#endif
+
void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
AVStream *st)
{
char *path, int path_size,
const char *url)
{
- const char *p, *ls, *at, *col, *brk;
+ const char *p, *ls, *ls2, *at, *at2, *col, *brk;
if (port_ptr) *port_ptr = -1;
if (proto_size > 0) proto[0] = 0;
/* separate path from hostname */
ls = strchr(p, '/');
+ ls2 = strchr(p, '?');
if(!ls)
- ls = strchr(p, '?');
+ ls = ls2;
+ else if (ls && ls2)
+ ls = FFMIN(ls, ls2);
if(ls)
av_strlcpy(path, ls, path_size);
else
/* the rest is hostname, use that to parse auth/port */
if (ls != p) {
/* authorization (user[:pass]@hostname) */
- if ((at = strchr(p, '@')) && at < ls) {
- av_strlcpy(authorization, p,
- FFMIN(authorization_size, at + 1 - p));
+ at2 = p;
+ while ((at = strchr(p, '@')) && at < ls) {
+ av_strlcpy(authorization, at2,
+ FFMIN(authorization_size, at + 1 - at2));
p = at + 1; /* skip '@' */
}
return len;
}
+#if FF_API_SET_PTS_INFO
+void av_set_pts_info(AVStream *s, int pts_wrap_bits,
+ unsigned int pts_num, unsigned int pts_den)
+{
+ avpriv_set_pts_info(s, pts_wrap_bits, pts_num, pts_den);
+}
+#endif
+
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
unsigned int pts_num, unsigned int pts_den)
{
av_log(NULL, AV_LOG_WARNING, "st:%d has too large timebase, reducing\n", s->index);
if(new_tb.num <= 0 || new_tb.den <= 0) {
- av_log(NULL, AV_LOG_ERROR, "Ignoring attempt to set invalid timebase for st:%d\n", s->index);
+ av_log(NULL, AV_LOG_ERROR, "Ignoring attempt to set invalid timebase %d/%d for st:%d\n", new_tb.num, new_tb.den, s->index);
return;
}
s->time_base = new_tb;
+ av_codec_set_pkt_timebase(s->codec, new_tb);
s->pts_wrap_bits = pts_wrap_bits;
}
int64_t ff_iso8601_to_unix_time(const char *datestr)
{
-#if HAVE_STRPTIME
struct tm time1 = {0}, time2 = {0};
char *ret1, *ret2;
- ret1 = strptime(datestr, "%Y - %m - %d %T", &time1);
- ret2 = strptime(datestr, "%Y - %m - %dT%T", &time2);
+ ret1 = av_small_strptime(datestr, "%Y - %m - %d %H:%M:%S", &time1);
+ ret2 = av_small_strptime(datestr, "%Y - %m - %dT%H:%M:%S", &time2);
if (ret2 && !ret1)
return av_timegm(&time2);
else
return av_timegm(&time1);
-#else
- av_log(NULL, AV_LOG_WARNING, "strptime() unavailable on this system, cannot convert "
- "the date string.\n");
- return 0;
-#endif
}
int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
{
return ff_codec_wav_tags;
}
+
+AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame)
+{
+ AVRational undef = {0, 1};
+ AVRational stream_sample_aspect_ratio = stream ? stream->sample_aspect_ratio : undef;
+ AVRational codec_sample_aspect_ratio = stream && stream->codec ? stream->codec->sample_aspect_ratio : undef;
+ AVRational frame_sample_aspect_ratio = frame ? frame->sample_aspect_ratio : codec_sample_aspect_ratio;
+
+ av_reduce(&stream_sample_aspect_ratio.num, &stream_sample_aspect_ratio.den,
+ stream_sample_aspect_ratio.num, stream_sample_aspect_ratio.den, INT_MAX);
+ if (stream_sample_aspect_ratio.num <= 0 || stream_sample_aspect_ratio.den <= 0)
+ stream_sample_aspect_ratio = undef;
+
+ av_reduce(&frame_sample_aspect_ratio.num, &frame_sample_aspect_ratio.den,
+ frame_sample_aspect_ratio.num, frame_sample_aspect_ratio.den, INT_MAX);
+ if (frame_sample_aspect_ratio.num <= 0 || frame_sample_aspect_ratio.den <= 0)
+ frame_sample_aspect_ratio = undef;
+
+ if (stream_sample_aspect_ratio.num)
+ return stream_sample_aspect_ratio;
+ else
+ return frame_sample_aspect_ratio;
+}
+
+int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
+ const char *spec)
+{
+ if (*spec <= '9' && *spec >= '0') /* opt:index */
+ return strtol(spec, NULL, 0) == st->index;
+ else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
+ *spec == 't') { /* opt:[vasdt] */
+ enum AVMediaType type;
+
+ switch (*spec++) {
+ case 'v': type = AVMEDIA_TYPE_VIDEO; break;
+ case 'a': type = AVMEDIA_TYPE_AUDIO; break;
+ case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
+ case 'd': type = AVMEDIA_TYPE_DATA; break;
+ case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
+ default: av_assert0(0);
+ }
+ if (type != st->codec->codec_type)
+ return 0;
+ if (*spec++ == ':') { /* possibly followed by :index */
+ int i, index = strtol(spec, NULL, 0);
+ for (i = 0; i < s->nb_streams; i++)
+ if (s->streams[i]->codec->codec_type == type && index-- == 0)
+ return i == st->index;
+ return 0;
+ }
+ return 1;
+ } else if (*spec == 'p' && *(spec + 1) == ':') {
+ int prog_id, i, j;
+ char *endptr;
+ spec += 2;
+ prog_id = strtol(spec, &endptr, 0);
+ for (i = 0; i < s->nb_programs; i++) {
+ if (s->programs[i]->id != prog_id)
+ continue;
+
+ if (*endptr++ == ':') {
+ int stream_idx = strtol(endptr, NULL, 0);
+ return stream_idx >= 0 &&
+ stream_idx < s->programs[i]->nb_stream_indexes &&
+ st->index == s->programs[i]->stream_index[stream_idx];
+ }
+
+ for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
+ if (st->index == s->programs[i]->stream_index[j])
+ return 1;
+ }
+ return 0;
+ } else if (*spec == '#') {
+ int sid;
+ char *endptr;
+ sid = strtol(spec + 1, &endptr, 0);
+ if (!*endptr)
+ return st->id == sid;
+ } else if (!*spec) /* empty specifier, matches everything */
+ return 1;
+
+ av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
+ return AVERROR(EINVAL);
+}
projects / ffmpeg / blobdiff