/*
- * 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 "libavutil/opt.h"
#include "libavutil/dict.h"
#include "libavutil/pixdesc.h"
/**
* @file
- * various utility functions for use within Libav
+ * various utility functions for use within FFmpeg
*/
unsigned avformat_version(void)
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;
}
/* fraction handling */
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, score_max=0;
if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
int id3len = ff_id3v2_tag_len(lpd.buf);
lpd.buf += id3len;
lpd.buf_size -= id3len;
}
- id3 = 1;
}
fmt = NULL;
score = 0;
if (fmt1->read_probe) {
score = fmt1->read_probe(&lpd);
+ if(!score && fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
+ score = 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 && id3 && *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;
- }
- }
-
+ *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 CodecID id; enum AVMediaType type;
{ "mpegvideo", 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) {
int i;
}
}
}
- return !!fmt;
+ return score;
}
/************************************************************/
}
#endif
+int av_demuxer_open(AVFormatContext *ic, AVFormatParameters *ap){
+ int err;
+
+ if (ic->iformat->read_header) {
+ err = ic->iformat->read_header(ic, ap);
+ 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)
*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);
+ 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);
}
}
if (!s->iformat)
return av_probe_input_buffer(s->pb, &s->iformat, filename, s, 0, 0);
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->pb)
ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC);
- if (s->iformat->read_header)
+ if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
if ((ret = s->iformat->read_header(s, &ap)) < 0)
goto fail;
- 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;
if (pktl) {
*pkt = pktl->pkt;
- if(s->streams[pkt->stream_index]->codec->codec_id != CODEC_ID_PROBE ||
- !s->streams[pkt->stream_index]->probe_packets ||
- s->raw_packet_buffer_remaining_size < pkt->size){
- AVProbeData *pd = &s->streams[pkt->stream_index]->probe_data;
- av_freep(&pd->buf);
- pd->buf_size = 0;
+ if(s->streams[pkt->stream_index]->request_probe <= 0){
s->raw_packet_buffer = pktl->next;
s->raw_packet_buffer_remaining_size += pkt->size;
av_free(pktl);
if (!pktl || ret == AVERROR(EAGAIN))
return ret;
for (i = 0; i < s->nb_streams; i++)
- s->streams[i]->probe_packets = 0;
+ if(s->streams[i]->request_probe > 0)
+ s->streams[i]->request_probe = -1;
continue;
}
+
+ if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
+ av_packet_merge_side_data(pkt);
st= s->streams[pkt->stream_index];
switch(st->codec->codec_type){
break;
}
- if(!pktl && (st->codec->codec_id != CODEC_ID_PROBE ||
- !st->probe_packets))
+ if(!pktl && st->request_probe <= 0)
return ret;
add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
s->raw_packet_buffer_remaining_size -= pkt->size;
- if(st->codec->codec_id == 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;
pd->buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
pd->buf_size += pkt->size;
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
- if(av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
- //FIXME we dont reduce score to 0 for the case of running out of buffer space in bytes
- set_codec_from_probe_data(s, st, pd, st->probe_packets > 0 ? AVPROBE_SCORE_MAX/4 : 0);
- if(st->codec->codec_id != 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 != CODEC_ID_NONE && score > AVPROBE_SCORE_MAX/4)
+ || end){
pd->buf_size=0;
av_freep(&pd->buf);
+ st->request_probe= -1;
+ if(st->codec->codec_id != 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);
}
}
}
compute_pkt_fields(s, st, st->parser, pkt);
if((s->iformat->flags & AVFMT_GENERIC_INDEX) && pkt->flags & AV_PKT_FLAG_KEY){
+ int64_t pos= (st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) ? pkt->pos : st->parser->frame_offset;
ff_reduce_index(s, st->index);
- av_add_index_entry(st, st->parser->frame_offset, pkt->dts,
+ av_add_index_entry(st, pos, pkt->dts,
0, 0, AVINDEX_KEYFRAME);
}
*/
static void av_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;
int i;
AVStream *st;
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);
+ if (st->codec->codec_id == CODEC_ID_DVB_TELETEXT) {
+ if (start_time1 < start_time_text)
+ start_time_text = start_time1;
+ } else
if (start_time1 < start_time)
start_time = start_time1;
if (st->duration != AV_NOPTS_VALUE) {
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;
if (start_time != INT64_MAX) {
ic->start_time = start_time;
if (end_time != INT64_MIN) {
}
av_update_stream_timings(ic);
+#if 0
{
int i;
AVStream av_unused *st;
for(i = 0;i < ic->nb_streams; i++) {
st = ic->streams[i];
- av_dlog(ic, "%d: start_time: %0.3f duration: %0.3f\n", i,
- (double) st->start_time / AV_TIME_BASE,
- (double) st->duration / AV_TIME_BASE);
+ printf("%d: start_time: %0.3f duration: %0.3f\n",
+ i, (double)st->start_time / AV_TIME_BASE,
+ (double)st->duration / AV_TIME_BASE);
}
- av_dlog(ic, "stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
- (double) ic->start_time / AV_TIME_BASE,
- (double) ic->duration / AV_TIME_BASE,
- ic->bit_rate / 1000);
+ printf("stream: start_time: %0.3f duration: %0.3f bitrate=%d kb/s\n",
+ (double)ic->start_time / AV_TIME_BASE,
+ (double)ic->duration / AV_TIME_BASE,
+ ic->bit_rate / 1000);
}
+#endif
}
static int has_codec_parameters(AVCodecContext *enc)
enc->codec_id == CODEC_ID_MP1 ||
enc->codec_id == CODEC_ID_MP2 ||
enc->codec_id == CODEC_ID_MP3 ||
- enc->codec_id == CODEC_ID_SPEEX))
+ enc->codec_id == CODEC_ID_SPEEX ||
+ enc->codec_id == CODEC_ID_CELT))
return 0;
break;
case AVMEDIA_TYPE_VIDEO:
st = ic->streams[pkt->stream_index];
if (st->codec_info_nb_frames>1) {
- if (st->time_base.den > 0 && av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
- av_log(ic, AV_LOG_WARNING, "max_analyze_duration reached\n");
+ int64_t t;
+ if (st->time_base.den > 0 && (t=av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q)) >= ic->max_analyze_duration) {
+ av_log(ic, AV_LOG_WARNING, "max_analyze_duration %d reached at %"PRId64"\n", ic->max_analyze_duration, t);
break;
}
st->info->codec_info_duration += pkt->duration;
(st->codec_info_nb_frames-2)*(int64_t)st->time_base.den,
st->info->codec_info_duration*(int64_t)st->time_base.num, 60000);
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- 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(st->codec->codec_id == 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;
+ }
// 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
&& tb_unreliable(st->codec) /*&&
#if FF_API_FORMAT_PARAMETERS
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap)
{
- int ret;
-
if (s->oformat->priv_data_size > 0) {
s->priv_data = av_mallocz(s->oformat->priv_data_size);
if (!s->priv_data)
} else
s->priv_data = NULL;
- if (s->oformat->set_parameters) {
- ret = s->oformat->set_parameters(s, ap);
- if (ret < 0)
- return ret;
+ return 0;
+}
+#endif
+
+int avformat_alloc_output_context2(AVFormatContext **avctx, AVOutputFormat *oformat,
+ const char *format, const char *filename)
+{
+ AVFormatContext *s = avformat_alloc_context();
+ int ret = 0;
+
+ *avctx = NULL;
+ if (!s)
+ goto nomem;
+
+ if (!oformat) {
+ if (format) {
+ oformat = av_guess_format(format, NULL, NULL);
+ if (!oformat) {
+ av_log(s, AV_LOG_ERROR, "Requested output format '%s' is not a suitable output format\n", format);
+ ret = AVERROR(EINVAL);
+ goto error;
+ }
+ } else {
+ oformat = av_guess_format(NULL, filename, NULL);
+ if (!oformat) {
+ ret = AVERROR(EINVAL);
+ av_log(s, AV_LOG_ERROR, "Unable to find a suitable output format for '%s'\n",
+ filename);
+ goto error;
+ }
+ }
}
+
+ s->oformat = oformat;
+ if (s->oformat->priv_data_size > 0) {
+ s->priv_data = av_mallocz(s->oformat->priv_data_size);
+ if (!s->priv_data)
+ goto nomem;
+ if (s->oformat->priv_class) {
+ *(const AVClass**)s->priv_data= s->oformat->priv_class;
+ av_opt_set_defaults(s->priv_data);
+ }
+ } else
+ s->priv_data = NULL;
+
+ if (filename)
+ av_strlcpy(s->filename, filename, sizeof(s->filename));
+ *avctx = s;
return 0;
+nomem:
+ av_log(s, AV_LOG_ERROR, "Out of memory\n");
+ ret = AVERROR(ENOMEM);
+error:
+ avformat_free_context(s);
+ return ret;
+}
+
+#if FF_API_ALLOC_OUTPUT_CONTEXT
+AVFormatContext *avformat_alloc_output_context(const char *format,
+ AVOutputFormat *oformat, const char *filename)
+{
+ AVFormatContext *avctx;
+ int ret = avformat_alloc_output_context2(&avctx, oformat, format, filename);
+ return ret < 0 ? NULL : avctx;
}
#endif
pkt->dts= st->pts_buffer[0];
}
- if(st->cur_dts && st->cur_dts != AV_NOPTS_VALUE && st->cur_dts >= pkt->dts){
+ if(st->cur_dts && st->cur_dts != AV_NOPTS_VALUE && ((!(s->oformat->flags & AVFMT_TS_NONSTRICT) && st->cur_dts >= pkt->dts) || st->cur_dts > pkt->dts)){
av_log(s, AV_LOG_ERROR,
"Application provided invalid, non monotonically increasing dts to muxer in stream %d: %"PRId64" >= %"PRId64"\n",
st->index, st->cur_dts, pkt->dts);
return ret;
ret= s->oformat->write_packet(s, pkt);
+ if(!ret)
+ ret= url_ferror(s->pb);
return ret;
}
if(ret<0)
return ret;
+ if(url_ferror(s->pb))
+ return url_ferror(s->pb);
}
}
if(ret<0)
goto fail;
+ if(url_ferror(s->pb))
+ goto fail;
}
if(s->oformat->write_trailer)
ret = s->oformat->write_trailer(s);
fail:
+ if(ret == 0)
+ ret=url_ferror(s->pb);
for(i=0;i<s->nb_streams;i++) {
av_freep(&s->streams[i]->priv_data);
av_freep(&s->streams[i]->index_entries);
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)){
+ char tmp[256];
+ int i;
+ av_strlcpy(tmp, tag->value, sizeof(tmp));
+ for(i=0; i<strlen(tmp); i++) if(tmp[i]==0xd) tmp[i]=' ';
+ av_log(ctx, AV_LOG_INFO, "%s %-16s: %s\n", indent, tag->key, tmp);
+ }
}
}
}
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