* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
+#include "internal.h"
#include "libavcodec/opt.h"
#include "libavutil/avstring.h"
#include "riff.h"
#include <sys/time.h>
#include <time.h>
+#include <strings.h>
#undef NDEBUG
#include <assert.h>
* various utility functions for use within FFmpeg
*/
-static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
-static void av_frac_add(AVFrac *f, int64_t incr);
+unsigned avformat_version(void)
+{
+ return LIBAVFORMAT_VERSION_INT;
+}
+
+/* fraction handling */
+
+/**
+ * f = val + (num / den) + 0.5.
+ *
+ * 'num' is normalized so that it is such as 0 <= num < den.
+ *
+ * @param f fractional number
+ * @param val integer value
+ * @param num must be >= 0
+ * @param den must be >= 1
+ */
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
+{
+ num += (den >> 1);
+ if (num >= den) {
+ val += num / den;
+ num = num % den;
+ }
+ f->val = val;
+ f->num = num;
+ f->den = den;
+}
+
+/**
+ * Fractional addition to f: f = f + (incr / f->den).
+ *
+ * @param f fractional number
+ * @param incr increment, can be positive or negative
+ */
+static void av_frac_add(AVFrac *f, int64_t incr)
+{
+ int64_t num, den;
+
+ num = f->num + incr;
+ den = f->den;
+ if (num < 0) {
+ f->val += num / den;
+ num = num % den;
+ if (num < 0) {
+ num += den;
+ f->val--;
+ }
+ } else if (num >= den) {
+ f->val += num / den;
+ num = num % den;
+ }
+ f->num = num;
+}
/** head of registered input format linked list */
AVInputFormat *first_iformat = NULL;
pkt->dts = AV_NOPTS_VALUE;
pkt->pos = -1;
pkt->duration = 0;
+ pkt->convergence_duration = 0;
pkt->flags = 0;
pkt->stream_index = 0;
pkt->destruct= av_destruct_packet_nofree;
fmt = av_probe_input_format2(pd, 1, &score);
if (fmt) {
- if (strncmp(fmt->name, "mp3", 3) == 0)
+ if (!strcmp(fmt->name, "mp3")) {
st->codec->codec_id = CODEC_ID_MP3;
- else if (strncmp(fmt->name, "ac3", 3) == 0)
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ } else if (!strcmp(fmt->name, "ac3")) {
st->codec->codec_id = CODEC_ID_AC3;
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ } else if (!strcmp(fmt->name, "mpegvideo")) {
+ st->codec->codec_id = CODEC_ID_MPEG2VIDEO;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ } else if (!strcmp(fmt->name, "m4v")) {
+ st->codec->codec_id = CODEC_ID_MPEG4;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ } else if (!strcmp(fmt->name, "h264")) {
+ st->codec->codec_id = CODEC_ID_H264;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ }
}
return !!fmt;
}
/*******************************************************/
-static AVPacket *add_to_pktbuf(AVPacketList **packet_buffer, AVPacket *pkt){
- AVPacketList *pktl;
- AVPacketList **plast_pktl= packet_buffer;
-
- while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
-
- pktl = av_mallocz(sizeof(AVPacketList));
+static AVPacket *add_to_pktbuf(AVPacketList **packet_buffer, AVPacket *pkt,
+ AVPacketList **plast_pktl){
+ AVPacketList *pktl = av_mallocz(sizeof(AVPacketList));
if (!pktl)
return NULL;
+ if (*packet_buffer)
+ (*plast_pktl)->next = pktl;
+ else
+ *packet_buffer = pktl;
+
/* add the packet in the buffered packet list */
*plast_pktl = pktl;
pktl->pkt= *pkt;
return ret;
st= s->streams[pkt->stream_index];
- if(!pktl && st->codec->codec_id!=CODEC_ID_PROBE)
- return ret;
-
- add_to_pktbuf(&s->raw_packet_buffer, pkt);
-
switch(st->codec->codec_type){
case CODEC_TYPE_VIDEO:
if(s->video_codec_id) st->codec->codec_id= s->video_codec_id;
break;
}
+ if(!pktl && st->codec->codec_id!=CODEC_ID_PROBE)
+ return ret;
+
+ add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
+
if(st->codec->codec_id == CODEC_ID_PROBE){
AVProbeData *pd = &st->probe_data;
pd->buf_size += pkt->size;
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
- set_codec_from_probe_data(st, pd, 1);
- if(st->codec->codec_id != CODEC_ID_PROBE){
- pd->buf_size=0;
- av_freep(&pd->buf);
+ if(av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
+ set_codec_from_probe_data(st, pd, 1);
+ if(st->codec->codec_id != CODEC_ID_PROBE){
+ pd->buf_size=0;
+ av_freep(&pd->buf);
+ }
}
}
}
case CODEC_ID_ASV1:
case CODEC_ID_ASV2:
case CODEC_ID_VCR1:
+ case CODEC_ID_DNXHD:
return 1;
default: break;
}
int num, den, presentation_delayed, delay, i;
int64_t offset;
+ /* do we have a video B-frame ? */
+ delay= st->codec->has_b_frames;
+ presentation_delayed = 0;
+ /* XXX: need has_b_frame, but cannot get it if the codec is
+ not initialized */
+ if (delay &&
+ pc && pc->pict_type != FF_B_TYPE)
+ 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;
}
+ // 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_ERROR, "invalid dts/pts combination\n");
+ pkt->dts= pkt->pts= AV_NOPTS_VALUE;
+ }
+
if (pkt->duration == 0) {
compute_frame_duration(&num, &den, st, pc, pkt);
if (den && num) {
pkt->dts += offset;
}
- /* do we have a video B-frame ? */
- delay= st->codec->has_b_frames;
- presentation_delayed = 0;
- /* XXX: need has_b_frame, but cannot get it if the codec is
- not initialized */
- if (delay &&
- pc && pc->pict_type != FF_B_TYPE)
- presentation_delayed = 1;
/* This may be redundant, but it should not hurt. */
if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
presentation_delayed = 1;
}
}
- if(pkt->pts != AV_NOPTS_VALUE){
+ if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
st->pts_buffer[0]= pkt->pts;
- for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
- st->pts_buffer[i]= (i-delay-1) * pkt->duration;
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)
return ret;
}
- if(av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt)) < 0)
+ if(av_dup_packet(add_to_pktbuf(&s->packet_buffer, pkt,
+ &s->packet_buffer_end)) < 0)
return AVERROR(ENOMEM);
}else{
assert(!s->packet_buffer);
static int av_seek_frame_generic(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
- int index;
+ int index, ret;
AVStream *st;
AVIndexEntry *ie;
if(st->nb_index_entries){
assert(st->index_entries);
ie= &st->index_entries[st->nb_index_entries-1];
- url_fseek(s->pb, ie->pos, SEEK_SET);
+ if ((ret = url_fseek(s->pb, ie->pos, SEEK_SET)) < 0)
+ return ret;
av_update_cur_dts(s, st, ie->timestamp);
- }else
- url_fseek(s->pb, 0, SEEK_SET);
-
+ }else{
+ if ((ret = url_fseek(s->pb, 0, SEEK_SET)) < 0)
+ return ret;
+ }
for(i=0;; i++) {
int ret = av_read_frame(s, &pkt);
if(ret<0)
return 0;
}
ie = &st->index_entries[index];
- url_fseek(s->pb, ie->pos, SEEK_SET);
-
+ if ((ret = url_fseek(s->pb, ie->pos, SEEK_SET)) < 0)
+ return ret;
av_update_cur_dts(s, st, ie->timestamp);
return 0;
/* timestamp for default must be expressed in AV_TIME_BASE units */
timestamp = av_rescale(timestamp, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
}
- st= s->streams[stream_index];
/* first, we try the format specific seek */
if (s->iformat->read_seek)
#define DURATION_MAX_READ_SIZE 250000
/* only usable for MPEG-PS streams */
-static void av_estimate_timings_from_pts(AVFormatContext *ic, offset_t old_offset)
+static void av_estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
{
AVPacket pkt1, *pkt = &pkt1;
AVStream *st;
}
}
-static void av_estimate_timings(AVFormatContext *ic, offset_t old_offset)
+static void av_estimate_timings(AVFormatContext *ic, int64_t old_offset)
{
int64_t file_size;
int val;
switch(enc->codec_type) {
case CODEC_TYPE_AUDIO:
- val = enc->sample_rate && enc->channels;
+ val = enc->sample_rate && enc->channels && enc->sample_fmt != SAMPLE_FMT_NONE;
if(!enc->frame_size &&
(enc->codec_id == CODEC_ID_VORBIS ||
enc->codec_id == CODEC_ID_AAC))
return CODEC_ID_NONE;
}
-unsigned int av_codec_get_tag(const AVCodecTag *tags[4], enum CodecID id)
+unsigned int av_codec_get_tag(const AVCodecTag * const *tags, enum CodecID id)
{
int i;
for(i=0; tags && tags[i]; i++){
return 0;
}
-enum CodecID av_codec_get_id(const AVCodecTag *tags[4], unsigned int tag)
+enum CodecID av_codec_get_id(const AVCodecTag * const *tags, unsigned int tag)
{
int i;
for(i=0; tags && tags[i]; i++){
#define MAX_STD_TIMEBASES (60*12+5)
static int get_std_framerate(int i){
if(i<60*12) return i*1001;
- else return ((int[]){24,30,60,12,15})[i-60*12]*1000*12;
+ else return ((const int[]){24,30,60,12,15})[i-60*12]*1000*12;
}
/*
int64_t last_dts[MAX_STREAMS];
int duration_count[MAX_STREAMS]={0};
double (*duration_error)[MAX_STD_TIMEBASES];
- offset_t old_offset = url_ftell(ic->pb);
+ int64_t old_offset = url_ftell(ic->pb);
int64_t codec_info_duration[MAX_STREAMS]={0};
int codec_info_nb_frames[MAX_STREAMS]={0};
- AVProbeData probe_data[MAX_STREAMS];
- int codec_identified[MAX_STREAMS]={0};
duration_error = av_mallocz(MAX_STREAMS * sizeof(*duration_error));
if (!duration_error) return AVERROR(ENOMEM);
last_dts[i]= AV_NOPTS_VALUE;
}
- memset(probe_data, 0, sizeof(probe_data));
count = 0;
read_size = 0;
for(;;) {
break;
}
- pkt= add_to_pktbuf(&ic->packet_buffer, &pkt1);
- if(av_dup_packet(pkt) < 0)
+ pkt= add_to_pktbuf(&ic->packet_buffer, &pkt1, &ic->packet_buffer_end);
+ if(av_dup_packet(pkt) < 0) {
+ av_free(duration_error);
return AVERROR(ENOMEM);
+ }
read_size += pkt->size;
}
if(last == AV_NOPTS_VALUE || duration_count[index]<=1)
last_dts[pkt->stream_index]= pkt->dts;
-
- if (st->codec->codec_id == CODEC_ID_NONE) {
- AVProbeData *pd = &(probe_data[st->index]);
- pd->buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
- 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);
- }
}
if(st->parser && st->parser->parser->split && !st->codec->extradata){
int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_sample)
+ if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample)
st->codec->codec_tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
if(duration_count[i]
}
}
}else if(st->codec->codec_type == CODEC_TYPE_AUDIO) {
- if (st->codec->codec_id == CODEC_ID_NONE && probe_data[st->index].buf_size > 0) {
- codec_identified[st->index] = set_codec_from_probe_data(st, &(probe_data[st->index]), 1);
- if (codec_identified[st->index]) {
- st->need_parsing = AVSTREAM_PARSE_FULL;
- }
- }
- if(!st->codec->bits_per_sample)
- st->codec->bits_per_sample= av_get_bits_per_sample(st->codec->codec_id);
+ if(!st->codec->bits_per_coded_sample)
+ st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);
}
}
av_estimate_timings(ic, old_offset);
- for(i=0;i<ic->nb_streams;i++) {
- st = ic->streams[i];
- if (codec_identified[st->index])
- break;
- }
- //FIXME this is a mess
- if(i!=ic->nb_streams){
- av_read_frame_flush(ic);
- for(i=0;i<ic->nb_streams;i++) {
- st = ic->streams[i];
- if (codec_identified[st->index]) {
- av_seek_frame(ic, st->index, 0.0, 0);
- }
- st->cur_dts= st->first_dts;
- }
- url_fseek(ic->pb, ic->data_offset, SEEK_SET);
- }
-
compute_chapters_end(ic);
#if 0
#endif
av_free(duration_error);
- for(i=0;i<MAX_STREAMS;i++){
- av_freep(&(probe_data[i].buf));
- }
return ret;
}
for(i=0; i<MAX_REORDER_DELAY+1; i++)
st->pts_buffer[i]= AV_NOPTS_VALUE;
+ st->sample_aspect_ratio = (AVRational){0,1};
+
s->streams[s->nb_streams++] = st;
return st;
}
av_log(s, AV_LOG_ERROR, "sample rate not set\n");
return -1;
}
+ if(!st->codec->block_align)
+ st->codec->block_align = st->codec->channels *
+ av_get_bits_per_sample(st->codec->codec_id) >> 3;
break;
case CODEC_TYPE_VIDEO:
if(st->codec->time_base.num<=0 || st->codec->time_base.den<=0){ //FIXME audio too?
av_log(s, AV_LOG_ERROR, "dimensions not set\n");
return -1;
}
+ if(av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)){
+ av_log(s, AV_LOG_ERROR, "Aspect ratio mismatch between encoder and muxer layer\n");
+ return -1;
+ }
break;
}
}
//calculate dts from pts
- if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE){
+ if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
st->pts_buffer[0]= pkt->pts;
for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
st->pts_buffer[i]= (i-delay-1) * pkt->duration;
return 0;
}
-static void truncate_ts(AVStream *st, AVPacket *pkt){
- int64_t pts_mask = (2LL << (st->pts_wrap_bits-1)) - 1;
-
-// if(pkt->dts < 0)
-// pkt->dts= 0; //this happens for low_delay=0 and B-frames, FIXME, needs further investigation about what we should do here
-
- if (pkt->pts != AV_NOPTS_VALUE)
- pkt->pts &= pts_mask;
- if (pkt->dts != AV_NOPTS_VALUE)
- pkt->dts &= pts_mask;
-}
-
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
{
int ret = compute_pkt_fields2(s->streams[pkt->stream_index], pkt);
if(ret<0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
return ret;
- truncate_ts(s->streams[pkt->stream_index], pkt);
-
ret= s->oformat->write_packet(s, pkt);
if(!ret)
ret= url_ferror(s->pb);
if(ret<=0) //FIXME cleanup needed for ret<0 ?
return ret;
- truncate_ts(s->streams[opkt.stream_index], &opkt);
ret= s->oformat->write_packet(s, &opkt);
av_free_packet(&opkt);
if(!ret)
break;
- truncate_ts(s->streams[pkt.stream_index], &pkt);
ret= s->oformat->write_packet(s, &pkt);
av_free_packet(&pkt);
return ret;
}
-/**
- * Gets the current time in microseconds.
- */
int64_t av_gettime(void)
{
struct timeval tv;
int64_t t;
struct tm dt;
int i;
- static const char *date_fmt[] = {
+ static const char * const date_fmt[] = {
"%Y-%m-%d",
"%Y%m%d",
};
- static const char *time_fmt[] = {
+ static const char * const time_fmt[] = {
"%H:%M:%S",
"%H%M%S",
};
q = NULL;
if (!duration) {
/* parse the year-month-day part */
- for (i = 0; i < sizeof(date_fmt) / sizeof(date_fmt[0]); i++) {
+ for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) {
q = small_strptime(p, date_fmt[i], &dt);
if (q) {
break;
p++;
/* parse the hour-minute-second part */
- for (i = 0; i < sizeof(time_fmt) / sizeof(time_fmt[0]); i++) {
+ for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) {
q = small_strptime(p, time_fmt[i], &dt);
if (q) {
break;
}
}
-void av_set_pts_info(AVStream *s, int pts_wrap_bits,
- int pts_num, int pts_den)
+char *ff_data_to_hex(char *buff, const uint8_t *src, int s)
{
- s->pts_wrap_bits = pts_wrap_bits;
- s->time_base.num = pts_num;
- s->time_base.den = pts_den;
-}
-
-/* fraction handling */
+ int i;
+ static const char hex_table[16] = { '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'A', 'B',
+ 'C', 'D', 'E', 'F' };
-/**
- * f = val + (num / den) + 0.5.
- *
- * 'num' is normalized so that it is such as 0 <= num < den.
- *
- * @param f fractional number
- * @param val integer value
- * @param num must be >= 0
- * @param den must be >= 1
- */
-static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
-{
- num += (den >> 1);
- if (num >= den) {
- val += num / den;
- num = num % den;
+ for(i = 0; i < s; i++) {
+ buff[i * 2] = hex_table[src[i] >> 4];
+ buff[i * 2 + 1] = hex_table[src[i] & 0xF];
}
- f->val = val;
- f->num = num;
- f->den = den;
+
+ return buff;
}
-/**
- * Fractional addition to f: f = f + (incr / f->den).
- *
- * @param f fractional number
- * @param incr increment, can be positive or negative
- */
-static void av_frac_add(AVFrac *f, int64_t incr)
+void av_set_pts_info(AVStream *s, int pts_wrap_bits,
+ int pts_num, int pts_den)
{
- int64_t num, den;
+ unsigned int gcd= ff_gcd(pts_num, pts_den);
+ s->pts_wrap_bits = pts_wrap_bits;
+ s->time_base.num = pts_num/gcd;
+ s->time_base.den = pts_den/gcd;
- num = f->num + incr;
- den = f->den;
- if (num < 0) {
- f->val += num / den;
- num = num % den;
- if (num < 0) {
- num += den;
- f->val--;
- }
- } else if (num >= den) {
- f->val += num / den;
- num = num % den;
- }
- f->num = num;
+ if(gcd>1)
+ av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, gcd);
}
projects / ffmpeg / blobdiff