* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-#include "allformats.h"
#include "opt.h"
+#include "avstring.h"
+#include "riff.h"
+#include <sys/time.h>
+#include <time.h>
#undef NDEBUG
#include <assert.h>
return fmt;
}
-/**
- * Guesses the codec id based upon muxer and filename.
- */
enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
const char *filename, const char *mime_type, enum CodecType type){
if(type == CODEC_TYPE_VIDEO){
return CODEC_ID_NONE;
}
-/**
- * finds AVInputFormat based on input format's short name.
- */
AVInputFormat *av_find_input_format(const char *short_name)
{
AVInputFormat *fmt;
/* memory handling */
-/**
- * Default packet destructor.
- */
void av_destruct_packet(AVPacket *pkt)
{
av_free(pkt->data);
pkt->data = NULL; pkt->size = 0;
}
-/**
- * Allocate the payload of a packet and intialized its fields to default values.
- *
- * @param pkt packet
- * @param size wanted payload size
- * @return 0 if OK. AVERROR_xxx otherwise.
- */
+void av_init_packet(AVPacket *pkt)
+{
+ pkt->pts = AV_NOPTS_VALUE;
+ pkt->dts = AV_NOPTS_VALUE;
+ pkt->pos = -1;
+ pkt->duration = 0;
+ pkt->flags = 0;
+ pkt->stream_index = 0;
+ pkt->destruct= av_destruct_packet_nofree;
+}
+
int av_new_packet(AVPacket *pkt, int size)
{
uint8_t *data;
if((unsigned)size > (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!data)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
av_init_packet(pkt);
return 0;
}
-/**
- * Allocate and read the payload of a packet and intialized its fields to default values.
- *
- * @param pkt packet
- * @param size wanted payload size
- * @return >0 (read size) if OK. AVERROR_xxx otherwise.
- */
int av_get_packet(ByteIOContext *s, AVPacket *pkt, int size)
{
int ret= av_new_packet(pkt, size);
return ret;
}
-/* This is a hack - the packet memory allocation stuff is broken. The
- packet is allocated if it was not really allocated */
int av_dup_packet(AVPacket *pkt)
{
if (pkt->destruct != av_destruct_packet) {
/* we duplicate the packet and don't forget to put the padding
again */
if((unsigned)pkt->size > (unsigned)pkt->size + FF_INPUT_BUFFER_PADDING_SIZE)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
data = av_malloc(pkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!data) {
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
}
memcpy(data, pkt->data, pkt->size);
memset(data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
return 0;
}
-/**
- * Check whether filename actually is a numbered sequence generator.
- *
- * @param filename possible numbered sequence string
- * @return 1 if a valid numbered sequence string, 0 otherwise.
- */
int av_filename_number_test(const char *filename)
{
char buf[1024];
return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
}
-/**
- * Guess file format.
- *
- * @param is_opened whether the file is already opened, determines whether
- * demuxers with or without AVFMT_NOFILE are probed
- */
-AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened)
+static AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
{
AVInputFormat *fmt1, *fmt;
- int score, score_max;
+ int score;
fmt = NULL;
- score_max = 0;
for(fmt1 = first_iformat; fmt1 != NULL; fmt1 = fmt1->next) {
if (!is_opened == !(fmt1->flags & AVFMT_NOFILE))
continue;
score = 50;
}
}
- if (score > score_max) {
- score_max = score;
+ if (score > *score_max) {
+ *score_max = score;
fmt = fmt1;
}
}
return fmt;
}
+AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened){
+ int score=0;
+ return av_probe_input_format2(pd, is_opened, &score);
+}
+
/************************************************************/
/* input media file */
}
#define OFFSET(x) offsetof(AVFormatContext,x)
-#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
+#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
//these names are too long to be readable
#define E AV_OPT_FLAG_ENCODING_PARAM
#define D AV_OPT_FLAG_DECODING_PARAM
{"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_GENPTS, INT_MIN, INT_MAX, D, "fflags"},
{"track", " set the track number", OFFSET(track), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E},
{"year", "set the year", OFFSET(year), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, E},
-{"analyzeduration", NULL, OFFSET(max_analyze_duration), FF_OPT_TYPE_INT, 3*AV_TIME_BASE, 0, INT_MAX, D},
+{"analyzeduration", "how many microseconds are analyzed to estimate duration", OFFSET(max_analyze_duration), FF_OPT_TYPE_INT, 3*AV_TIME_BASE, 0, INT_MAX, D},
{NULL},
};
return ic;
}
-/**
- * Allocates all the structures needed to read an input stream.
- * This does not open the needed codecs for decoding the stream[s].
- */
int av_open_input_stream(AVFormatContext **ic_ptr,
ByteIOContext *pb, const char *filename,
AVInputFormat *fmt, AVFormatParameters *ap)
else
ic = *ic_ptr;
if (!ic) {
- err = AVERROR_NOMEM;
+ err = AVERROR(ENOMEM);
goto fail;
}
ic->iformat = fmt;
ic->pb = *pb;
ic->duration = AV_NOPTS_VALUE;
ic->start_time = AV_NOPTS_VALUE;
- pstrcpy(ic->filename, sizeof(ic->filename), filename);
+ av_strlcpy(ic->filename, filename, sizeof(ic->filename));
/* allocate private data */
if (fmt->priv_data_size > 0) {
ic->priv_data = av_mallocz(fmt->priv_data_size);
if (!ic->priv_data) {
- err = AVERROR_NOMEM;
+ err = AVERROR(ENOMEM);
goto fail;
}
} else {
#define PROBE_BUF_MIN 2048
#define PROBE_BUF_MAX (1<<20)
-/**
- * Open a media file as input. The codec are not opened. Only the file
- * header (if present) is read.
- *
- * @param ic_ptr the opened media file handle is put here
- * @param filename filename to open.
- * @param fmt if non NULL, force the file format to use
- * @param buf_size optional buffer size (zero if default is OK)
- * @param ap additionnal parameters needed when opening the file (NULL if default)
- * @return 0 if OK. AVERROR_xxx otherwise.
- */
int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
AVInputFormat *fmt,
int buf_size,
must_open_file = 1;
if (fmt && (fmt->flags & AVFMT_NOFILE)) {
must_open_file = 0;
- pb= NULL; //FIXME this or memset(pb, 0, sizeof(ByteIOContext)); otherwise its uninitalized
+ pb= NULL; //FIXME this or memset(pb, 0, sizeof(ByteIOContext)); otherwise it is uninitialized
}
if (!fmt || must_open_file) {
/* if no file needed do not try to open one */
- if (url_fopen(pb, filename, URL_RDONLY) < 0) {
- err = AVERROR_IO;
+ if ((err=url_fopen(pb, filename, URL_RDONLY)) < 0) {
goto fail;
}
file_opened = 1;
}
for(probe_size= PROBE_BUF_MIN; probe_size<=PROBE_BUF_MAX && !fmt; probe_size<<=1){
+ int score= probe_size < PROBE_BUF_MAX ? AVPROBE_SCORE_MAX/4 : 0;
/* read probe data */
- pd->buf= av_realloc(pd->buf, probe_size);
+ pd->buf= av_realloc(pd->buf, probe_size + AVPROBE_PADDING_SIZE);
pd->buf_size = get_buffer(pb, pd->buf, probe_size);
+ memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
if (url_fseek(pb, 0, SEEK_SET) < 0) {
url_fclose(pb);
if (url_fopen(pb, filename, URL_RDONLY) < 0) {
file_opened = 0;
- err = AVERROR_IO;
+ err = AVERROR(EIO);
goto fail;
}
}
/* guess file format */
- fmt = av_probe_input_format(pd, 1);
+ fmt = av_probe_input_format2(pd, 1, &score);
}
av_freep(&pd->buf);
}
}
/* XXX: suppress this hack for redirectors */
-#ifdef CONFIG_NETWORK
- if (fmt == &redir_demuxer) {
+#ifdef CONFIG_REDIR_DEMUXER
+ if (!strcmp(fmt->name, "redir")) {
+ int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
err = redir_open(ic_ptr, pb);
url_fclose(pb);
return err;
/*******************************************************/
-/**
- * Read a transport packet from a media file.
- *
- * This function is absolete and should never be used.
- * Use av_read_frame() instead.
- *
- * @param s media file handle
- * @param pkt is filled
- * @return 0 if OK. AVERROR_xxx if error.
- */
int av_read_packet(AVFormatContext *s, AVPacket *pkt)
{
+ av_init_packet(pkt);
return s->iformat->read_packet(s, pkt);
}
return 0;
}
-static int64_t lsb2full(int64_t lsb, int64_t last_ts, int lsb_bits){
- int64_t mask = lsb_bits < 64 ? (1LL<<lsb_bits)-1 : -1LL;
- int64_t delta= last_ts - mask/2;
- return ((lsb - delta)&mask) + delta;
+static void update_initial_timestamps(AVFormatContext *s, int stream_index,
+ int64_t dts, int64_t pts)
+{
+ AVStream *st= s->streams[stream_index];
+ AVPacketList *pktl= s->packet_buffer;
+
+ if(st->first_dts != AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE)
+ return;
+
+ st->first_dts= dts - st->cur_dts;
+ st->cur_dts= dts;
+
+ for(; pktl; pktl= pktl->next){
+ 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(pktl->pkt.dts != AV_NOPTS_VALUE)
+ pktl->pkt.dts += st->first_dts;
+
+ if(st->start_time == AV_NOPTS_VALUE && pktl->pkt.pts != AV_NOPTS_VALUE)
+ st->start_time= pktl->pkt.pts;
+ }
+ if (st->start_time == AV_NOPTS_VALUE)
+ st->start_time = pts;
}
static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
AVCodecParserContext *pc, AVPacket *pkt)
{
- int num, den, presentation_delayed;
- /* handle wrapping */
- if(st->cur_dts != AV_NOPTS_VALUE){
- if(pkt->pts != AV_NOPTS_VALUE)
- pkt->pts= lsb2full(pkt->pts, st->cur_dts, st->pts_wrap_bits);
- if(pkt->dts != AV_NOPTS_VALUE)
- pkt->dts= lsb2full(pkt->dts, st->cur_dts, st->pts_wrap_bits);
+ int num, den, presentation_delayed, delay, i;
+ int64_t offset;
+
+ 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->duration == 0) {
}
}
- if(is_intra_only(st->codec))
- pkt->flags |= PKT_FLAG_KEY;
+ /* correct timestamps with byte offset if demuxers only have timestamps on packet boundaries */
+ if(pc && st->need_parsing == AVSTREAM_PARSE_TIMESTAMPS && pkt->size){
+ /* this will estimate bitrate based on this frame's duration and size */
+ offset = av_rescale(pc->offset, pkt->duration, pkt->size);
+ if(pkt->pts != AV_NOPTS_VALUE)
+ pkt->pts += offset;
+ if(pkt->dts != AV_NOPTS_VALUE)
+ pkt->dts += offset;
+ }
/* do we have a video B frame ? */
+ delay= st->codec->has_b_frames;
presentation_delayed = 0;
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- /* XXX: need has_b_frame, but cannot get it if the codec is
- not initialized */
- if (( st->codec->codec_id == CODEC_ID_H264
- || st->codec->has_b_frames) &&
- pc && pc->pict_type != FF_B_TYPE)
- presentation_delayed = 1;
- /* this may be redundant, but it shouldnt hurt */
- if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts > pkt->dts)
- presentation_delayed = 1;
- }
+ /* 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(st->cur_dts == AV_NOPTS_VALUE){
- if(presentation_delayed) st->cur_dts = -pkt->duration;
- else st->cur_dts = 0;
+ st->cur_dts = 0; //FIXME maybe set it to 0 during init
}
// av_log(NULL, AV_LOG_DEBUG, "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);
/* interpolate PTS and DTS if they are not present */
- if (presentation_delayed) {
- /* DTS = decompression time stamp */
- /* PTS = presentation time stamp */
- if (pkt->dts == AV_NOPTS_VALUE) {
- /* if we know the last pts, use it */
- if(st->last_IP_pts != AV_NOPTS_VALUE)
- st->cur_dts = pkt->dts = st->last_IP_pts;
- else
+ if(delay <=1){
+ if (presentation_delayed) {
+ /* DTS = decompression time stamp */
+ /* PTS = presentation time stamp */
+ if (pkt->dts == AV_NOPTS_VALUE)
+ pkt->dts = st->last_IP_pts;
+ update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts);
+ if (pkt->dts == AV_NOPTS_VALUE)
pkt->dts = st->cur_dts;
- } else {
- st->cur_dts = pkt->dts;
- }
- /* this is tricky: the dts must be incremented by the duration
- of the frame we are displaying, i.e. the last I or P frame */
- if (st->last_IP_duration == 0)
- st->cur_dts += pkt->duration;
- else
- st->cur_dts += st->last_IP_duration;
- st->last_IP_duration = pkt->duration;
- st->last_IP_pts= pkt->pts;
- /* cannot compute PTS if not present (we can compute it only
- by knowing the futur */
- } else if(pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE || pkt->duration){
- if(pkt->pts != AV_NOPTS_VALUE && pkt->duration){
- int64_t old_diff= FFABS(st->cur_dts - pkt->duration - pkt->pts);
- int64_t new_diff= FFABS(st->cur_dts - pkt->pts);
- if(old_diff < new_diff && old_diff < (pkt->duration>>3)){
- pkt->pts += pkt->duration;
-// av_log(NULL, AV_LOG_DEBUG, "id:%d old:%"PRId64" new:%"PRId64" dur:%d cur:%"PRId64" size:%d\n", pkt->stream_index, old_diff, new_diff, pkt->duration, st->cur_dts, pkt->size);
- }
- }
- /* presentation is not delayed : PTS and DTS are the same */
- if (pkt->pts == AV_NOPTS_VALUE) {
- if (pkt->dts == AV_NOPTS_VALUE) {
- pkt->pts = st->cur_dts;
- pkt->dts = st->cur_dts;
+ /* this is tricky: the dts must be incremented by the duration
+ of the frame we are displaying, i.e. the last I or P frame */
+ if (st->last_IP_duration == 0)
+ st->last_IP_duration = pkt->duration;
+ st->cur_dts = pkt->dts + st->last_IP_duration;
+ st->last_IP_duration = pkt->duration;
+ st->last_IP_pts= pkt->pts;
+ /* cannot compute PTS if not present (we can compute it only
+ by knowing the futur */
+ } else if(pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE || pkt->duration){
+ if(pkt->pts != AV_NOPTS_VALUE && pkt->duration){
+ int64_t old_diff= FFABS(st->cur_dts - pkt->duration - pkt->pts);
+ int64_t new_diff= FFABS(st->cur_dts - pkt->pts);
+ if(old_diff < new_diff && old_diff < (pkt->duration>>3)){
+ pkt->pts += pkt->duration;
+ // av_log(NULL, AV_LOG_DEBUG, "id:%d old:%"PRId64" new:%"PRId64" dur:%d cur:%"PRId64" size:%d\n", pkt->stream_index, old_diff, new_diff, pkt->duration, st->cur_dts, pkt->size);
+ }
}
- else {
- st->cur_dts = pkt->dts;
+
+ /* presentation is not delayed : PTS and DTS are the same */
+ if(pkt->pts == AV_NOPTS_VALUE)
pkt->pts = pkt->dts;
- }
- } else {
- st->cur_dts = pkt->pts;
+ 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;
+ st->cur_dts = pkt->pts + pkt->duration;
}
- st->cur_dts += pkt->duration;
}
-// av_log(NULL, AV_LOG_DEBUG, "OUTdelayed:%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64"\n", presentation_delayed, pkt->pts, pkt->dts, st->cur_dts);
+
+ if(pkt->pts != AV_NOPTS_VALUE){
+ 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)
+ pkt->dts= st->pts_buffer[0];
+ if(delay>1){
+ 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;
+ }
+
+// av_log(NULL, AV_LOG_ERROR, "OUTdelayed:%d/%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64"\n", presentation_delayed, delay, pkt->pts, pkt->dts, st->cur_dts);
/* update flags */
- if (pc) {
+ if(is_intra_only(st->codec))
+ pkt->flags |= PKT_FLAG_KEY;
+ else if (pc) {
pkt->flags = 0;
/* key frame computation */
- switch(st->codec->codec_type) {
- case CODEC_TYPE_VIDEO:
if (pc->pict_type == FF_I_TYPE)
pkt->flags |= PKT_FLAG_KEY;
- break;
- case CODEC_TYPE_AUDIO:
- pkt->flags |= PKT_FLAG_KEY;
- break;
- default:
- break;
- }
}
}
AVStream *st;
int len, ret, i;
+ av_init_packet(pkt);
+
for(;;) {
/* select current input stream component */
st = s->cur_st;
/* return packet if any */
if (pkt->size) {
got_packet:
+ pkt->pos = s->cur_pkt.pos; // Isn't quite accurate but close.
pkt->duration = 0;
pkt->stream_index = st->index;
pkt->pts = st->parser->pts;
st->parser = av_parser_init(st->codec->codec_id);
if (!st->parser) {
/* no parser available : just output the raw packets */
- st->need_parsing = 0;
- }else if(st->need_parsing == 2){
+ st->need_parsing = AVSTREAM_PARSE_NONE;
+ }else if(st->need_parsing == AVSTREAM_PARSE_HEADERS){
st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
}
if(st->parser && (s->iformat->flags & AVFMT_GENERIC_INDEX)){
return 0;
}
-/**
- * Return the next frame of a stream.
- *
- * The returned packet is valid
- * until the next av_read_frame() or until av_close_input_file() and
- * must be freed with av_free_packet. For video, the packet contains
- * exactly one frame. For audio, it contains an integer number of
- * frames if each frame has a known fixed size (e.g. PCM or ADPCM
- * data). If the audio frames have a variable size (e.g. MPEG audio),
- * then it contains one frame.
- *
- * pkt->pts, pkt->dts and pkt->duration are always set to correct
- * values in AV_TIME_BASE unit (and guessed if the format cannot
- * provided them). pkt->pts can be AV_NOPTS_VALUE if the video format
- * has B frames, so it is better to rely on pkt->dts if you do not
- * decompress the payload.
- *
- * @return 0 if OK, < 0 if error or end of file.
- */
+static AVPacket *add_to_pktbuf(AVFormatContext *s, AVPacket *pkt){
+ AVPacketList *pktl= s->packet_buffer;
+ AVPacketList **plast_pktl= &s->packet_buffer;
+
+ while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
+
+ pktl = av_mallocz(sizeof(AVPacketList));
+ if (!pktl)
+ return NULL;
+
+ /* add the packet in the buffered packet list */
+ *plast_pktl = pktl;
+ pktl->pkt= *pkt;
+ return &pktl->pkt;
+}
+
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
{
AVPacketList *pktl;
}
}
if(genpts){
- AVPacketList **plast_pktl= &s->packet_buffer;
int ret= av_read_frame_internal(s, pkt);
if(ret<0){
if(pktl && ret != AVERROR(EAGAIN)){
return ret;
}
- /* duplicate the packet */
- if (av_dup_packet(pkt) < 0)
- return AVERROR_NOMEM;
-
- while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
-
- pktl = av_mallocz(sizeof(AVPacketList));
- if (!pktl)
- return AVERROR_NOMEM;
-
- /* add the packet in the buffered packet list */
- *plast_pktl = pktl;
- pktl->pkt= *pkt;
+ if(av_dup_packet(add_to_pktbuf(s, pkt)) < 0)
+ return AVERROR(ENOMEM);
}else{
assert(!s->packet_buffer);
return av_read_frame_internal(s, pkt);
st->parser = NULL;
}
st->last_IP_pts = AV_NOPTS_VALUE;
- st->cur_dts = 0; /* we set the current DTS to an unspecified origin */
+ st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
}
}
-/**
- * Updates cur_dts of all streams based on given timestamp and AVStream.
- *
- * Stream ref_st unchanged, others set cur_dts in their native timebase
- * only needed for timestamp wrapping or if (dts not set and pts!=dts)
- * @param timestamp new dts expressed in time_base of param ref_st
- * @param ref_st reference stream giving time_base of param timestamp
- */
void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
int i;
}
}
-/**
- * Add a index entry into a sorted list updateing if it is already there.
- *
- * @param timestamp timestamp in the timebase of the given stream
- */
int av_add_index_entry(AVStream *st,
int64_t pos, int64_t timestamp, int size, int distance, int flags)
{
return -1;
memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(st->nb_index_entries - index));
st->nb_index_entries++;
- }else if(ie->pos == pos && distance < ie->min_distance) //dont reduce the distance
+ }else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
distance= ie->min_distance;
}
return index;
}
-/**
- * build an index for raw streams using a parser.
- */
-static void av_build_index_raw(AVFormatContext *s)
-{
- AVPacket pkt1, *pkt = &pkt1;
- int ret;
- AVStream *st;
-
- st = s->streams[0];
- av_read_frame_flush(s);
- url_fseek(&s->pb, s->data_offset, SEEK_SET);
-
- for(;;) {
- ret = av_read_frame(s, pkt);
- if (ret < 0)
- break;
- if (pkt->stream_index == 0 && st->parser &&
- (pkt->flags & PKT_FLAG_KEY)) {
- av_add_index_entry(st, st->parser->frame_offset, pkt->dts,
- 0, 0, AVINDEX_KEYFRAME);
- }
- av_free_packet(pkt);
- }
-}
-
-/**
- * Returns TRUE if we deal with a raw stream.
- *
- * Raw codec data and parsing needed.
- */
-static int is_raw_stream(AVFormatContext *s)
-{
- AVStream *st;
-
- if (s->nb_streams != 1)
- return 0;
- st = s->streams[0];
- if (!st->need_parsing)
- return 0;
- return 1;
-}
-
-/**
- * Gets the index for a specific timestamp.
- * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond to
- * the timestamp which is <= the requested one, if backward is 0
- * then it will be >=
- * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise
- * @return < 0 if no such timestamp could be found
- */
int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
int flags)
{
#define DEBUG_SEEK
-/**
- * Does a binary search using av_index_search_timestamp() and AVCodec.read_timestamp().
- * this isnt supposed to be called directly by a user application, but by demuxers
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags){
AVInputFormat *avif= s->iformat;
int64_t pos_min, pos_max, pos, pos_limit;
ts_max=
ts_min= AV_NOPTS_VALUE;
- pos_limit= -1; //gcc falsely says it may be uninitalized
+ pos_limit= -1; //gcc falsely says it may be uninitialized
st= s->streams[stream_index];
if(st->index_entries){
return 0;
}
-/**
- * Does a binary search using read_timestamp().
- * this isnt supposed to be called directly by a user application, but by demuxers
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
int64_t av_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts, int64_t pos_min, int64_t pos_max, int64_t pos_limit, int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret, int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t )){
int64_t pos, ts;
int64_t start_pos, filesize;
#ifdef DEBUG_SEEK
av_log(s, AV_LOG_DEBUG, "%"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, pos_limit, start_pos, no_change);
#endif
+ if(ts == AV_NOPTS_VALUE){
+ av_log(s, AV_LOG_ERROR, "read_timestamp() failed in the middle\n");
+ return -1;
+ }
assert(ts != AV_NOPTS_VALUE);
if (target_ts <= ts) {
pos_limit = start_pos - 1;
index = av_index_search_timestamp(st, timestamp, flags);
- if(index < 0){
+ if(index < 0 || index==st->nb_index_entries-1){
int i;
AVPacket pkt;
return 0;
}
-/**
- * Seek to the key frame at timestamp.
- * 'timestamp' in 'stream_index'.
- * @param stream_index If stream_index is (-1), a default
- * stream is selected, and timestamp is automatically converted
- * from AV_TIME_BASE units to the stream specific time_base.
- * @param timestamp timestamp in AVStream.time_base units
- * or if there is no stream specified then in AV_TIME_BASE units
- * @param flags flags which select direction and seeking mode
- * @return >= 0 on success
- */
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
{
int ret;
/*******************************************************/
/**
- * Returns TRUE if the stream has accurate timings in any stream.
+ * Returns TRUE if the stream has accurate duration in any stream.
*
- * @return TRUE if the stream has accurate timings for at least one component.
+ * @return TRUE if the stream has accurate duration for at least one component.
*/
-static int av_has_timings(AVFormatContext *ic)
+static int av_has_duration(AVFormatContext *ic)
{
int i;
AVStream *st;
for(i = 0;i < ic->nb_streams; i++) {
st = ic->streams[i];
- if (st->start_time != AV_NOPTS_VALUE &&
- st->duration != AV_NOPTS_VALUE)
+ if (st->duration != AV_NOPTS_VALUE)
return 1;
}
return 0;
static void av_update_stream_timings(AVFormatContext *ic)
{
int64_t start_time, start_time1, end_time, end_time1;
+ int64_t duration, duration1;
int i;
AVStream *st;
start_time = 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) {
end_time = end_time1;
}
}
+ if (st->duration != AV_NOPTS_VALUE) {
+ duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q);
+ if (duration1 > duration)
+ duration = duration1;
+ }
}
if (start_time != INT64_MAX) {
ic->start_time = start_time;
if (end_time != INT64_MIN) {
- ic->duration = end_time - start_time;
- if (ic->file_size > 0) {
- /* compute the bit rate */
- ic->bit_rate = (double)ic->file_size * 8.0 * AV_TIME_BASE /
- (double)ic->duration;
- }
+ if (end_time - start_time > duration)
+ duration = end_time - start_time;
+ }
+ }
+ if (duration != INT64_MIN) {
+ ic->duration = duration;
+ if (ic->file_size > 0) {
+ /* compute the bit rate */
+ ic->bit_rate = (double)ic->file_size * 8.0 * AV_TIME_BASE /
+ (double)ic->duration;
}
}
-
}
static void fill_all_stream_timings(AVFormatContext *ic)
for(i = 0; i < ic->nb_streams; i++) {
st = ic->streams[i];
duration= av_rescale(8*filesize, st->time_base.den, ic->bit_rate*(int64_t)st->time_base.num);
- if (st->start_time == AV_NOPTS_VALUE ||
- st->duration == AV_NOPTS_VALUE) {
- st->start_time = 0;
+ if (st->duration == AV_NOPTS_VALUE)
st->duration = duration;
- }
}
}
}
for(;;) {
if (read_size >= DURATION_MAX_READ_SIZE)
break;
- /* if all info is available, we can stop */
- for(i = 0;i < ic->nb_streams; i++) {
- st = ic->streams[i];
- if (st->duration == AV_NOPTS_VALUE)
- break;
- }
- if (i == ic->nb_streams)
- break;
ret = av_read_packet(ic, pkt);
if (ret != 0)
break;
read_size += pkt->size;
st = ic->streams[pkt->stream_index];
- if (pkt->pts != AV_NOPTS_VALUE) {
+ if (pkt->pts != AV_NOPTS_VALUE &&
+ st->start_time != AV_NOPTS_VALUE) {
end_time = pkt->pts;
duration = end_time - st->start_time;
if (duration > 0) {
fill_all_stream_timings(ic);
url_fseek(&ic->pb, old_offset, SEEK_SET);
+ for(i=0; i<ic->nb_streams; i++){
+ st= ic->streams[i];
+ st->cur_dts= st->first_dts;
+ st->last_IP_pts = AV_NOPTS_VALUE;
+ }
}
static void av_estimate_timings(AVFormatContext *ic, offset_t old_offset)
file_size && !ic->pb.is_streamed) {
/* get accurate estimate from the PTSes */
av_estimate_timings_from_pts(ic, old_offset);
- } else if (av_has_timings(ic)) {
+ } else if (av_has_duration(ic)) {
/* at least one components has timings - we use them for all
the components */
fill_all_stream_timings(ic);
val = 1;
break;
}
- return (val != 0);
+ return (enc->codec_id != CODEC_ID_NONE && val != 0);
}
static int try_decode_frame(AVStream *st, const uint8_t *data, int size)
return ret;
}
+static int set_codec_from_probe_data(AVStream *st, AVProbeData *pd, int score)
+{
+ AVInputFormat *fmt;
+ fmt = av_probe_input_format2(pd, 1, &score);
+
+ if (fmt) {
+ if (strncmp(fmt->name, "mp3", 3) == 0)
+ st->codec->codec_id = CODEC_ID_MP3;
+ else if (strncmp(fmt->name, "ac3", 3) == 0)
+ st->codec->codec_id = CODEC_ID_AC3;
+ }
+ return !!fmt;
+}
+
+unsigned int codec_get_tag(const AVCodecTag *tags, int id)
+{
+ while (tags->id != CODEC_ID_NONE) {
+ if (tags->id == id)
+ return tags->tag;
+ tags++;
+ }
+ return 0;
+}
+
+enum CodecID codec_get_id(const AVCodecTag *tags, unsigned int tag)
+{
+ int i;
+ for(i=0; tags[i].id != CODEC_ID_NONE;i++) {
+ if(tag == tags[i].tag)
+ return tags[i].id;
+ }
+ for(i=0; tags[i].id != CODEC_ID_NONE; i++) {
+ if( toupper((tag >> 0)&0xFF) == toupper((tags[i].tag >> 0)&0xFF)
+ && toupper((tag >> 8)&0xFF) == toupper((tags[i].tag >> 8)&0xFF)
+ && toupper((tag >>16)&0xFF) == toupper((tags[i].tag >>16)&0xFF)
+ && toupper((tag >>24)&0xFF) == toupper((tags[i].tag >>24)&0xFF))
+ return tags[i].id;
+ }
+ return CODEC_ID_NONE;
+}
+
+unsigned int av_codec_get_tag(const AVCodecTag *tags[4], enum CodecID id)
+{
+ int i;
+ for(i=0; tags && tags[i]; i++){
+ int tag= codec_get_tag(tags[i], id);
+ if(tag) return tag;
+ }
+ return 0;
+}
+
+enum CodecID av_codec_get_id(const AVCodecTag *tags[4], unsigned int tag)
+{
+ int i;
+ for(i=0; tags && tags[i]; i++){
+ enum CodecID id= codec_get_id(tags[i], tag);
+ if(id!=CODEC_ID_NONE) return id;
+ }
+ return CODEC_ID_NONE;
+}
+
/* absolute maximum size we read until we abort */
#define MAX_READ_SIZE 5000000
else return ((int[]){24,30,60,12,15})[i-60*12]*1000*12;
}
-/**
- * Read packets of a media file to get stream information. This
- * is useful for file formats with no headers such as MPEG. This
- * function also computes the real frame rate in case of mpeg2 repeat
- * frame mode.
- * The logical file position is not changed by this function;
- * examined packets may be buffered for later processing.
- *
- * @param ic media file handle
- * @return >=0 if OK. AVERROR_xxx if error.
- * @todo let user decide somehow what information is needed so we dont waste time geting stuff the user doesnt need
- */
int av_find_stream_info(AVFormatContext *ic)
{
int i, count, ret, read_size, j;
AVStream *st;
AVPacket pkt1, *pkt;
- AVPacketList *pktl=NULL, **ppktl;
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 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_NOMEM;
+ if (!duration_error) return AVERROR(ENOMEM);
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
//only for the split stuff
if (!st->parser) {
st->parser = av_parser_init(st->codec->codec_id);
- if(st->need_parsing == 2 && st->parser){
+ if(st->need_parsing == AVSTREAM_PARSE_HEADERS && st->parser){
st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
}
}
last_dts[i]= AV_NOPTS_VALUE;
}
+ memset(probe_data, 0, sizeof(probe_data));
count = 0;
read_size = 0;
- ppktl = &ic->packet_buffer;
for(;;) {
/* check if one codec still needs to be handled */
for(i=0;i<ic->nb_streams;i++) {
if (!has_codec_parameters(st->codec))
break;
/* variable fps and no guess at the real fps */
- if( st->codec->time_base.den >= 101LL*st->codec->time_base.num
+ if( (st->codec->time_base.den >= 101LL*st->codec->time_base.num || st->codec->codec_id == CODEC_ID_MPEG2VIDEO)
&& duration_count[i]<20 && st->codec->codec_type == CODEC_TYPE_VIDEO)
break;
if(st->parser && st->parser->parser->split && !st->codec->extradata)
break;
+ if(st->first_dts == AV_NOPTS_VALUE)
+ break;
}
if (i == ic->nb_streams) {
/* NOTE: if the format has no header, then we need to read
break;
}
- pktl = av_mallocz(sizeof(AVPacketList));
- if (!pktl) {
- ret = AVERROR_NOMEM;
- break;
- }
-
- /* add the packet in the buffered packet list */
- *ppktl = pktl;
- ppktl = &pktl->next;
-
- pkt = &pktl->pkt;
- *pkt = pkt1;
-
- /* duplicate the packet */
- if (av_dup_packet(pkt) < 0) {
- ret = AVERROR_NOMEM;
- break;
- }
+ pkt= add_to_pktbuf(ic, &pkt1);
+ if(av_dup_packet(pkt) < 0)
+ return AVERROR(ENOMEM);
read_size += pkt->size;
st = ic->streams[pkt->stream_index];
- if(st->codec_info_nb_frames>1) //FIXME move codec_info_nb_frames and codec_info_duration from AVStream into this func
- st->codec_info_duration += pkt->duration;
+ if(codec_info_nb_frames[st->index]>1)
+ codec_info_duration[st->index] += pkt->duration;
if (pkt->duration != 0)
- st->codec_info_nb_frames++;
+ codec_info_nb_frames[st->index]++;
{
int index= pkt->stream_index;
duration_error[index][i] += error*error;
}
duration_count[index]++;
-
- if(st->codec_info_nb_frames == 0 && 0)
- st->codec_info_duration += duration;
}
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);
(st->codec->codec_id == CODEC_ID_MPEG4 && !st->need_parsing))*/)
try_decode_frame(st, pkt->data, pkt->size);
- if (av_rescale_q(st->codec_info_duration, st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
+ if (st->time_base.den > 0 && av_rescale_q(codec_info_duration[st->index], st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
break;
}
count++;
}
}
}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);
}
}
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);
+ }
+
#if 0
/* correct DTS for b frame streams with no timestamps */
for(i=0;i<ic->nb_streams;i++) {
#endif
av_free(duration_error);
+ for(i=0;i<MAX_STREAMS;i++){
+ av_freep(&(probe_data[i].buf));
+ }
return ret;
}
/*******************************************************/
-/**
- * start playing a network based stream (e.g. RTSP stream) at the
- * current position
- */
int av_read_play(AVFormatContext *s)
{
if (!s->iformat->read_play)
- return AVERROR_NOTSUPP;
+ return AVERROR(ENOSYS);
return s->iformat->read_play(s);
}
-/**
- * Pause a network based stream (e.g. RTSP stream).
- *
- * Use av_read_play() to resume it.
- */
int av_read_pause(AVFormatContext *s)
{
if (!s->iformat->read_pause)
- return AVERROR_NOTSUPP;
+ return AVERROR(ENOSYS);
return s->iformat->read_pause(s);
}
-/**
- * Close a media file (but not its codecs).
- *
- * @param s media file handle
- */
void av_close_input_file(AVFormatContext *s)
{
int i, must_open_file;
av_free(st->codec);
av_free(st);
}
+ for(i=s->nb_programs-1; i>=0; i--) {
+ av_freep(&s->programs[i]->provider_name);
+ av_freep(&s->programs[i]->name);
+ av_freep(&s->programs[i]->stream_index);
+ av_freep(&s->programs[i]);
+ }
flush_packet_queue(s);
must_open_file = 1;
if (s->iformat->flags & AVFMT_NOFILE) {
av_free(s);
}
-/**
- * Add a new stream to a media file.
- *
- * Can only be called in the read_header() function. If the flag
- * AVFMTCTX_NOHEADER is in the format context, then new streams
- * can be added in read_packet too.
- *
- * @param s media file handle
- * @param id file format dependent stream id
- */
AVStream *av_new_stream(AVFormatContext *s, int id)
{
AVStream *st;
st->start_time = AV_NOPTS_VALUE;
st->duration = AV_NOPTS_VALUE;
st->cur_dts = AV_NOPTS_VALUE;
+ st->first_dts = AV_NOPTS_VALUE;
/* default pts settings is MPEG like */
av_set_pts_info(st, 33, 1, 90000);
return st;
}
+AVProgram *av_new_program(AVFormatContext *ac, int id)
+{
+ AVProgram *program=NULL;
+ int i;
+
+#ifdef DEBUG_SI
+ av_log(ac, AV_LOG_DEBUG, "new_program: id=0x%04x\n", id);
+#endif
+
+ for(i=0; i<ac->nb_programs; i++)
+ if(ac->programs[i]->id == id)
+ program = ac->programs[i];
+
+ if(!program){
+ program = av_mallocz(sizeof(AVProgram));
+ if (!program)
+ return NULL;
+ dynarray_add(&ac->programs, &ac->nb_programs, program);
+ program->discard = AVDISCARD_NONE;
+ }
+ program->id = id;
+
+ return program;
+}
+
+void av_set_program_name(AVProgram *program, char *provider_name, char *name)
+{
+ assert(!provider_name == !name);
+ if(name){
+ av_free(program->provider_name);
+ av_free(program-> name);
+ program->provider_name = av_strdup(provider_name);
+ program-> name = av_strdup( name);
+ }
+}
+
+
/************************************************************/
/* output media file */
if (s->oformat->priv_data_size > 0) {
s->priv_data = av_mallocz(s->oformat->priv_data_size);
if (!s->priv_data)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
} else
s->priv_data = NULL;
return 0;
}
-/**
- * allocate the stream private data and write the stream header to an
- * output media file
- *
- * @param s media file handle
- * @return 0 if OK. AVERROR_xxx if error.
- */
int av_write_header(AVFormatContext *s)
{
int ret, i;
if (!s->priv_data && s->oformat->priv_data_size > 0) {
s->priv_data = av_mallocz(s->oformat->priv_data_size);
if (!s->priv_data)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
}
if(s->oformat->write_header){
pkt->dts &= pts_mask;
}
-/**
- * Write a packet to an output media file.
- *
- * The packet shall contain one audio or video frame.
- * The packet must be correctly interleaved according to the container specification,
- * if not then av_interleaved_write_frame must be used
- *
- * @param s media file handle
- * @param pkt the packet, which contains the stream_index, buf/buf_size, dts/pts, ...
- * @return < 0 if error, = 0 if OK, 1 if end of stream wanted.
- */
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
{
int ret;
return ret;
}
-/**
- * Interleave a packet per DTS in an output media file.
- *
- * Packets with pkt->destruct == av_destruct_packet will be freed inside this function,
- * so they cannot be used after it, note calling av_free_packet() on them is still safe.
- *
- * @param s media file handle
- * @param out the interleaved packet will be output here
- * @param in the input packet
- * @param flush 1 if no further packets are available as input and all
- * remaining packets should be output
- * @return 1 if a packet was output, 0 if no packet could be output,
- * < 0 if an error occured
- */
int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
AVPacketList *pktl, **next_point, *this_pktl;
int stream_count=0;
return av_interleave_packet_per_dts(s, out, in, flush);
}
-/**
- * Writes a packet to an output media file ensuring correct interleaving.
- *
- * The packet must contain one audio or video frame.
- * If the packets are already correctly interleaved the application should
- * call av_write_frame() instead as its slightly faster, its also important
- * to keep in mind that completly non interleaved input will need huge amounts
- * of memory to interleave with this, so its prefereable to interleave at the
- * demuxer level
- *
- * @param s media file handle
- * @param pkt the packet, which contains the stream_index, buf/buf_size, dts/pts, ...
- * @return < 0 if error, = 0 if OK, 1 if end of stream wanted.
- */
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt){
AVStream *st= s->streams[ pkt->stream_index];
}
}
-/**
- * @brief Write the stream trailer to an output media file and
- * free the file private data.
- *
- * @param s media file handle
- * @return 0 if OK. AVERROR_xxx if error.
- */
int av_write_trailer(AVFormatContext *s)
{
int ret, i;
return ret;
}
+void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx)
+{
+ int i, j;
+ AVProgram *program=NULL;
+ void *tmp;
+
+ for(i=0; i<ac->nb_programs; i++){
+ if(ac->programs[i]->id != progid)
+ continue;
+ program = ac->programs[i];
+ for(j=0; j<program->nb_stream_indexes; j++)
+ if(program->stream_index[j] == idx)
+ return;
+
+ tmp = av_realloc(program->stream_index, sizeof(unsigned int)*(program->nb_stream_indexes+1));
+ if(!tmp)
+ return;
+ program->stream_index = tmp;
+ program->stream_index[program->nb_stream_indexes++] = idx;
+ return;
+ }
+}
+
/* "user interface" functions */
+static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
+{
+ char buf[256];
+ int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
+ AVStream *st = ic->streams[i];
+ int g = ff_gcd(st->time_base.num, st->time_base.den);
+ avcodec_string(buf, sizeof(buf), st->codec, is_output);
+ 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)
+ av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
+ if (strlen(st->language) > 0)
+ av_log(NULL, AV_LOG_INFO, "(%s)", st->language);
+ av_log(NULL, AV_LOG_DEBUG, ", %d/%d", st->time_base.num/g, st->time_base.den/g);
+ av_log(NULL, AV_LOG_INFO, ": %s", buf);
+ if(st->codec->codec_type == CODEC_TYPE_VIDEO){
+ if(st->r_frame_rate.den && st->r_frame_rate.num)
+ av_log(NULL, AV_LOG_INFO, ", %5.2f fps(r)", av_q2d(st->r_frame_rate));
+/* else if(st->time_base.den && st->time_base.num)
+ av_log(NULL, AV_LOG_INFO, ", %5.2f fps(m)", 1/av_q2d(st->time_base));*/
+ else
+ av_log(NULL, AV_LOG_INFO, ", %5.2f fps(c)", 1/av_q2d(st->codec->time_base));
+ }
+ av_log(NULL, AV_LOG_INFO, "\n");
+}
void dump_format(AVFormatContext *ic,
int index,
const char *url,
int is_output)
{
- int i, flags;
- char buf[256];
+ int i;
av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
is_output ? "Output" : "Input",
}
av_log(NULL, AV_LOG_INFO, "\n");
}
- for(i=0;i<ic->nb_streams;i++) {
- AVStream *st = ic->streams[i];
- int g= ff_gcd(st->time_base.num, st->time_base.den);
- avcodec_string(buf, sizeof(buf), st->codec, is_output);
- 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 (is_output)
- flags = ic->oformat->flags;
- else
- flags = ic->iformat->flags;
- if (flags & AVFMT_SHOW_IDS) {
- av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
- }
- if (strlen(st->language) > 0) {
- av_log(NULL, AV_LOG_INFO, "(%s)", st->language);
- }
- av_log(NULL, AV_LOG_DEBUG, ", %d/%d", st->time_base.num/g, st->time_base.den/g);
- av_log(NULL, AV_LOG_INFO, ": %s", buf);
- if(st->codec->codec_type == CODEC_TYPE_VIDEO){
- if(st->r_frame_rate.den && st->r_frame_rate.num)
- av_log(NULL, AV_LOG_INFO, ", %5.2f fps(r)", av_q2d(st->r_frame_rate));
-/* else if(st->time_base.den && st->time_base.num)
- av_log(NULL, AV_LOG_INFO, ", %5.2f fps(m)", 1/av_q2d(st->time_base));*/
- else
- av_log(NULL, AV_LOG_INFO, ", %5.2f fps(c)", 1/av_q2d(st->codec->time_base));
- }
- av_log(NULL, AV_LOG_INFO, "\n");
- }
+ if(ic->nb_programs) {
+ int j, k;
+ for(j=0; j<ic->nb_programs; j++) {
+ av_log(NULL, AV_LOG_INFO, " Program %d %s\n", ic->programs[j]->id,
+ ic->programs[j]->name ? ic->programs[j]->name : "");
+ for(k=0; k<ic->programs[j]->nb_stream_indexes; k++)
+ dump_stream_format(ic, ic->programs[j]->stream_index[k], index, is_output);
+ }
+ } else
+ for(i=0;i<ic->nb_streams;i++)
+ dump_stream_format(ic, i, index, is_output);
}
-typedef struct {
- const char *abv;
- int width, height;
- int frame_rate, frame_rate_base;
-} AbvEntry;
-
-static AbvEntry frame_abvs[] = {
- { "ntsc", 720, 480, 30000, 1001 },
- { "pal", 720, 576, 25, 1 },
- { "qntsc", 352, 240, 30000, 1001 }, /* VCD compliant ntsc */
- { "qpal", 352, 288, 25, 1 }, /* VCD compliant pal */
- { "sntsc", 640, 480, 30000, 1001 }, /* square pixel ntsc */
- { "spal", 768, 576, 25, 1 }, /* square pixel pal */
- { "film", 352, 240, 24, 1 },
- { "ntsc-film", 352, 240, 24000, 1001 },
- { "sqcif", 128, 96, 0, 0 },
- { "qcif", 176, 144, 0, 0 },
- { "cif", 352, 288, 0, 0 },
- { "4cif", 704, 576, 0, 0 },
-};
-
-/**
- * parses width and height out of string str.
- */
int parse_image_size(int *width_ptr, int *height_ptr, const char *str)
{
- int i;
- int n = sizeof(frame_abvs) / sizeof(AbvEntry);
- const char *p;
- int frame_width = 0, frame_height = 0;
+ return av_parse_video_frame_size(width_ptr, height_ptr, str);
+}
- for(i=0;i<n;i++) {
- if (!strcmp(frame_abvs[i].abv, str)) {
- frame_width = frame_abvs[i].width;
- frame_height = frame_abvs[i].height;
- break;
- }
- }
- if (i == n) {
- p = str;
- frame_width = strtol(p, (char **)&p, 10);
- if (*p)
- p++;
- frame_height = strtol(p, (char **)&p, 10);
- }
- if (frame_width <= 0 || frame_height <= 0)
- return -1;
- *width_ptr = frame_width;
- *height_ptr = frame_height;
- return 0;
+int parse_frame_rate(int *frame_rate_num, int *frame_rate_den, const char *arg)
+{
+ AVRational frame_rate;
+ int ret = av_parse_video_frame_rate(&frame_rate, arg);
+ *frame_rate_num= frame_rate.num;
+ *frame_rate_den= frame_rate.den;
+ return ret;
}
/**
- * Converts frame rate from string to a fraction.
- *
- * First we try to get an exact integer or fractional frame rate.
- * If this fails we convert the frame rate to a double and return
- * an approximate fraction using the DEFAULT_FRAME_RATE_BASE.
+ * gets the current time in micro seconds.
*/
-int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg)
+int64_t av_gettime(void)
{
- int i;
- char* cp;
-
- /* First, we check our abbreviation table */
- for (i = 0; i < sizeof(frame_abvs)/sizeof(*frame_abvs); ++i)
- if (!strcmp(frame_abvs[i].abv, arg)) {
- *frame_rate = frame_abvs[i].frame_rate;
- *frame_rate_base = frame_abvs[i].frame_rate_base;
- return 0;
- }
-
- /* Then, we try to parse it as fraction */
- cp = strchr(arg, '/');
- if (!cp)
- cp = strchr(arg, ':');
- if (cp) {
- char* cpp;
- *frame_rate = strtol(arg, &cpp, 10);
- if (cpp != arg || cpp == cp)
- *frame_rate_base = strtol(cp+1, &cpp, 10);
- else
- *frame_rate = 0;
- }
- else {
- /* Finally we give up and parse it as double */
- AVRational time_base = av_d2q(strtod(arg, 0), DEFAULT_FRAME_RATE_BASE);
- *frame_rate_base = time_base.den;
- *frame_rate = time_base.num;
- }
- if (!*frame_rate || !*frame_rate_base)
- return -1;
- else
- return 0;
+ struct timeval tv;
+ gettimeofday(&tv,NULL);
+ return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
}
-/**
- * Converts date string to number of seconds since Jan 1st, 1970.
- *
- * @code
- * Syntax:
- * - If not a duration:
- * [{YYYY-MM-DD|YYYYMMDD}]{T| }{HH[:MM[:SS[.m...]]][Z]|HH[MM[SS[.m...]]][Z]}
- * Time is localtime unless Z is suffixed to the end. In this case GMT
- * Return the date in micro seconds since 1970
- *
- * - If a duration:
- * HH[:MM[:SS[.m...]]]
- * S+[.m...]
- * @endcode
- */
-#ifndef CONFIG_WINCE
int64_t parse_date(const char *datestr, int duration)
{
const char *p;
p = datestr;
q = NULL;
if (!duration) {
+ /* parse the year-month-day part */
for (i = 0; i < sizeof(date_fmt) / sizeof(date_fmt[0]); i++) {
q = small_strptime(p, date_fmt[i], &dt);
if (q) {
}
}
+ /* if the year-month-day part is missing, then take the
+ * current year-month-day time */
if (!q) {
if (is_utc) {
dt = *gmtime(&now);
if (*p == 'T' || *p == 't' || *p == ' ')
p++;
+ /* parse the hour-minute-second part */
for (i = 0; i < sizeof(time_fmt) / sizeof(time_fmt[0]); i++) {
q = small_strptime(p, time_fmt[i], &dt);
if (q) {
}
}
} else {
+ /* parse datestr as a duration */
if (p[0] == '-') {
negative = 1;
++p;
}
+ /* parse datestr as HH:MM:SS */
q = small_strptime(p, time_fmt[0], &dt);
if (!q) {
+ /* parse datestr as S+ */
dt.tm_sec = strtol(p, (char **)&q, 10);
+ if (q == p)
+ /* the parsing didn't succeed */
+ return INT64_MIN;
dt.tm_min = 0;
dt.tm_hour = 0;
}
/* Now we have all the fields that we can get */
if (!q) {
- if (duration)
- return 0;
- else
- return now * INT64_C(1000000);
+ return INT64_MIN;
}
if (duration) {
t *= 1000000;
+ /* parse the .m... part */
if (*q == '.') {
int val, n;
q++;
}
return negative ? -t : t;
}
-#endif /* CONFIG_WINCE */
-/**
- * Attempts to find a specific tag in a URL.
- *
- * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
- * Return 1 if found.
- */
int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
{
const char *p;
return 0;
}
-/**
- * Returns in 'buf' the path with '%d' replaced by number.
-
- * Also handles the '%0nd' format where 'n' is the total number
- * of digits and '%%'.
- *
- * @param buf destination buffer
- * @param buf_size destination buffer size
- * @param path numbered sequence string
- * @number frame number
- * @return 0 if OK, -1 if format error.
- */
int av_get_frame_filename(char *buf, int buf_size,
const char *path, int number)
{
return -1;
}
-/**
- * Print nice hexa dump of a buffer
- * @param f stream for output
- * @param buf buffer
- * @param size buffer size
- */
-void av_hex_dump(FILE *f, uint8_t *buf, int size)
+static void hex_dump_internal(void *avcl, FILE *f, int level, uint8_t *buf, int size)
{
int len, i, j, c;
+#define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
for(i=0;i<size;i+=16) {
len = size - i;
if (len > 16)
len = 16;
- fprintf(f, "%08x ", i);
+ PRINT("%08x ", i);
for(j=0;j<16;j++) {
if (j < len)
- fprintf(f, " %02x", buf[i+j]);
+ PRINT(" %02x", buf[i+j]);
else
- fprintf(f, " ");
+ PRINT(" ");
}
- fprintf(f, " ");
+ PRINT(" ");
for(j=0;j<len;j++) {
c = buf[i+j];
if (c < ' ' || c > '~')
c = '.';
- fprintf(f, "%c", c);
+ PRINT("%c", c);
}
- fprintf(f, "\n");
+ PRINT("\n");
}
+#undef PRINT
+}
+
+void av_hex_dump(FILE *f, uint8_t *buf, int size)
+{
+ hex_dump_internal(NULL, f, 0, buf, size);
+}
+
+void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size)
+{
+ hex_dump_internal(avcl, NULL, level, buf, size);
}
-/**
- * Print on 'f' a nice dump of a packet
- * @param f stream for output
- * @param pkt packet to dump
- * @param dump_payload true if the payload must be displayed too
- */
//FIXME needs to know the time_base
-void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload)
+static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload)
{
- fprintf(f, "stream #%d:\n", pkt->stream_index);
- fprintf(f, " keyframe=%d\n", ((pkt->flags & PKT_FLAG_KEY) != 0));
- fprintf(f, " duration=%0.3f\n", (double)pkt->duration / AV_TIME_BASE);
+#define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
+ PRINT("stream #%d:\n", pkt->stream_index);
+ PRINT(" keyframe=%d\n", ((pkt->flags & PKT_FLAG_KEY) != 0));
+ PRINT(" duration=%0.3f\n", (double)pkt->duration / AV_TIME_BASE);
/* DTS is _always_ valid after av_read_frame() */
- fprintf(f, " dts=");
+ PRINT(" dts=");
if (pkt->dts == AV_NOPTS_VALUE)
- fprintf(f, "N/A");
+ PRINT("N/A");
else
- fprintf(f, "%0.3f", (double)pkt->dts / AV_TIME_BASE);
+ PRINT("%0.3f", (double)pkt->dts / AV_TIME_BASE);
/* PTS may be not known if B frames are present */
- fprintf(f, " pts=");
+ PRINT(" pts=");
if (pkt->pts == AV_NOPTS_VALUE)
- fprintf(f, "N/A");
+ PRINT("N/A");
else
- fprintf(f, "%0.3f", (double)pkt->pts / AV_TIME_BASE);
- fprintf(f, "\n");
- fprintf(f, " size=%d\n", pkt->size);
+ PRINT("%0.3f", (double)pkt->pts / AV_TIME_BASE);
+ PRINT("\n");
+ PRINT(" size=%d\n", pkt->size);
+#undef PRINT
if (dump_payload)
av_hex_dump(f, pkt->data, pkt->size);
}
+void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload)
+{
+ pkt_dump_internal(NULL, f, 0, pkt, dump_payload);
+}
+
+void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, int dump_payload)
+{
+ pkt_dump_internal(avcl, NULL, level, pkt, dump_payload);
+}
+
void url_split(char *proto, int proto_size,
char *authorization, int authorization_size,
char *hostname, int hostname_size,
char *path, int path_size,
const char *url)
{
- const char *p;
- char *q;
- int port;
-
- port = -1;
-
- p = url;
- q = proto;
- while (*p != ':' && *p != '\0') {
- if ((q - proto) < proto_size - 1)
- *q++ = *p;
- p++;
- }
- if (proto_size > 0)
- *q = '\0';
- if (authorization_size > 0)
- authorization[0] = '\0';
- if (*p == '\0') {
- if (proto_size > 0)
- proto[0] = '\0';
- if (hostname_size > 0)
- hostname[0] = '\0';
- p = url;
+ const char *p, *ls, *at, *col, *brk, *q;
+
+ if (port_ptr) *port_ptr = -1;
+ if (proto_size > 0) proto[0] = 0;
+ if (authorization_size > 0) authorization[0] = 0;
+ if (hostname_size > 0) hostname[0] = 0;
+ if (path_size > 0) path[0] = 0;
+
+ /* parse protocol */
+ if ((p = strchr(url, ':'))) {
+ av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
+ p++; /* skip ':' */
+ if (*p == '/') p++;
+ if (*p == '/') p++;
} else {
- char *at,*slash; // PETR: position of '@' character and '/' character
+ /* no protocol means plain filename */
+ av_strlcpy(path, url, path_size);
+ return;
+ }
- p++;
- if (*p == '/')
- p++;
- if (*p == '/')
- p++;
- at = strchr(p,'@'); // PETR: get the position of '@'
- slash = strchr(p,'/'); // PETR: get position of '/' - end of hostname
- if (at && slash && at > slash) at = NULL; // PETR: not interested in '@' behind '/'
-
- q = at ? authorization : hostname; // PETR: if '@' exists starting with auth.
-
- while ((at || *p != ':') && *p != '/' && *p != '?' && *p != '\0') { // PETR:
- if (*p == '@') { // PETR: passed '@'
- if (authorization_size > 0)
- *q = '\0';
- q = hostname;
- at = NULL;
- } else if (!at) { // PETR: hostname
- if ((q - hostname) < hostname_size - 1)
- *q++ = *p;
- } else {
- if ((q - authorization) < authorization_size - 1)
- *q++ = *p;
- }
- p++;
- }
- if (hostname_size > 0)
- *q = '\0';
- if (*p == ':') {
- p++;
- port = strtoul(p, (char **)&p, 10);
- }
+ /* separate path from hostname */
+ if ((ls = strchr(p, '/'))) {
+ if ((q = strchr(ls, '?')))
+ av_strlcpy(path, ls, FFMIN(path_size, q - ls + 1));
+ else
+ av_strlcpy(path, ls, path_size);
+ } else if (!(ls = strchr(p, '?')))
+ ls = &p[strlen(p)]; // XXX
+
+ /* 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));
+ p = at + 1; /* skip '@' */
+ }
+
+ if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
+ /* [host]:port */
+ av_strlcpy(hostname, p + 1,
+ FFMIN(hostname_size, brk - p));
+ if (brk[1] == ':' && port_ptr)
+ *port_ptr = atoi(brk + 2);
+ } else if ((col = strchr(p, ':')) && col < ls) {
+ av_strlcpy(hostname, p,
+ FFMIN(col + 1 - p, hostname_size));
+ if (port_ptr) *port_ptr = atoi(col + 1);
+ } else
+ av_strlcpy(hostname, p,
+ FFMIN(ls + 1 - p, hostname_size));
}
- if (port_ptr)
- *port_ptr = port;
- pstrcpy(path, path_size, p);
}
-/**
- * Set the pts for a given stream.
- *
- * @param s stream
- * @param pts_wrap_bits number of bits effectively used by the pts
- * (used for wrap control, 33 is the value for MPEG)
- * @param pts_num numerator to convert to seconds (MPEG: 1)
- * @param pts_den denominator to convert to seconds (MPEG: 90000)
- */
void av_set_pts_info(AVStream *s, int pts_wrap_bits,
int pts_num, int pts_den)
{
projects / ffmpeg / blobdiff