*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
+#include "allformats.h"
#undef NDEBUG
#include <assert.h>
* Various utility functions for using ffmpeg library.
*/
+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);
+static void av_frac_set(AVFrac *f, int64_t val);
+
/** head of registered input format linked list. */
AVInputFormat *first_iformat = NULL;
/** head of registered output format linked list. */
int score_max, score;
/* specific test for image sequences */
+#ifdef CONFIG_IMAGE2_MUXER
if (!short_name && filename &&
filename_number_test(filename) >= 0 &&
av_guess_image2_codec(filename) != CODEC_ID_NONE) {
return guess_format("image2", NULL, NULL);
}
+#endif
if (!short_name && filename &&
filename_number_test(filename) >= 0 &&
guess_image_format(filename)) {
if(type == CODEC_TYPE_VIDEO){
enum CodecID codec_id= CODEC_ID_NONE;
+#ifdef CONFIG_IMAGE2_MUXER
if(!strcmp(fmt->name, "image2") || !strcmp(fmt->name, "image2pipe")){
codec_id= av_guess_image2_codec(filename);
}
+#endif
if(codec_id == CODEC_ID_NONE)
codec_id= fmt->video_codec;
return codec_id;
}
}
-void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr)
+void fifo_write(FifoBuffer *f, const uint8_t *buf, int size, uint8_t **wptr_ptr)
{
int len;
uint8_t *wptr;
{
int err;
AVFormatContext *ic;
+ AVFormatParameters default_ap;
+
+ if(!ap){
+ ap=&default_ap;
+ memset(ap, 0, sizeof(default_ap));
+ }
ic = av_alloc_format_context();
if (!ic) {
}
/** Size of probe buffer, for guessing file type from file contents. */
-#define PROBE_BUF_SIZE 2048
+#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
int buf_size,
AVFormatParameters *ap)
{
- int err, must_open_file, file_opened;
- uint8_t buf[PROBE_BUF_SIZE];
+ int err, must_open_file, file_opened, probe_size;
AVProbeData probe_data, *pd = &probe_data;
ByteIOContext pb1, *pb = &pb1;
pd->filename = "";
if (filename)
pd->filename = filename;
- pd->buf = buf;
+ pd->buf = NULL;
pd->buf_size = 0;
if (!fmt) {
if (buf_size > 0) {
url_setbufsize(pb, buf_size);
}
- if (!fmt) {
+
+ for(probe_size= PROBE_BUF_MIN; probe_size<=PROBE_BUF_MAX && !fmt; probe_size<<=1){
/* read probe data */
- pd->buf_size = get_buffer(pb, buf, PROBE_BUF_SIZE);
+ pd->buf= av_realloc(pd->buf, probe_size);
+ pd->buf_size = get_buffer(pb, pd->buf, probe_size);
if (url_fseek(pb, 0, SEEK_SET) == (offset_t)-EPIPE) {
url_fclose(pb);
if (url_fopen(pb, filename, URL_RDONLY) < 0) {
+ file_opened = 0;
err = AVERROR_IO;
goto fail;
}
}
+ /* guess file format */
+ fmt = av_probe_input_format(pd, 1);
}
- }
-
- /* guess file format */
- if (!fmt) {
- fmt = av_probe_input_format(pd, 1);
+ av_freep(&pd->buf);
}
/* if still no format found, error */
/* XXX: suppress this hack for redirectors */
#ifdef CONFIG_NETWORK
- if (fmt == &redir_demux) {
+ if (fmt == &redir_demuxer) {
err = redir_open(ic_ptr, pb);
url_fclose(pb);
return err;
goto fail;
return 0;
fail:
+ av_freep(&pd->buf);
if (file_opened)
url_fclose(pb);
*ic_ptr = NULL;
int frame_size;
if (enc->frame_size <= 1) {
- /* specific hack for pcm codecs because no frame size is
- provided */
- switch(enc->codec_id) {
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_S32BE:
- case CODEC_ID_PCM_U32LE:
- case CODEC_ID_PCM_U32BE:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (4 * enc->channels);
- break;
- case CODEC_ID_PCM_S24LE:
- case CODEC_ID_PCM_S24BE:
- case CODEC_ID_PCM_U24LE:
- case CODEC_ID_PCM_U24BE:
- case CODEC_ID_PCM_S24DAUD:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (3 * enc->channels);
- break;
- case CODEC_ID_PCM_S16LE:
- case CODEC_ID_PCM_S16BE:
- case CODEC_ID_PCM_U16LE:
- case CODEC_ID_PCM_U16BE:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (2 * enc->channels);
- break;
- case CODEC_ID_PCM_S8:
- case CODEC_ID_PCM_U8:
- case CODEC_ID_PCM_MULAW:
- case CODEC_ID_PCM_ALAW:
+ int bits_per_sample = av_get_bits_per_sample(enc->codec_id);
+
+ if (bits_per_sample) {
if (enc->channels == 0)
return -1;
- frame_size = size / (enc->channels);
- break;
- default:
+ frame_size = (size << 3) / (bits_per_sample * enc->channels);
+ } else {
/* used for example by ADPCM codecs */
if (enc->bit_rate == 0)
return -1;
frame_size = (size * 8 * enc->sample_rate) / enc->bit_rate;
- break;
}
} else {
frame_size = enc->frame_size;
* @param timestamp new dts expressed in time_base of param ref_st
* @param ref_st reference stream giving time_base of param timestamp
*/
-static void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
+void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
int i;
for(i = 0; i < s->nb_streams; i++) {
* @param timestamp timestamp in the timebase of the given stream
*/
int av_add_index_entry(AVStream *st,
- int64_t pos, int64_t timestamp, int distance, int flags)
+ int64_t pos, int64_t timestamp, int size, int distance, int flags)
{
AVIndexEntry *entries, *ie;
int index;
ie->pos = pos;
ie->timestamp = timestamp;
ie->min_distance= distance;
+ ie->size= size;
ie->flags = flags;
return index;
if (pkt->stream_index == 0 && st->parser &&
(pkt->flags & PKT_FLAG_KEY)) {
av_add_index_entry(st, st->parser->frame_offset, pkt->dts,
- 0, AVINDEX_KEYFRAME);
+ 0, 0, AVINDEX_KEYFRAME);
}
av_free_packet(pkt);
}
pos_limit= pos_max;
}
+ if(ts_min > ts_max){
+ return -1;
+ }else if(ts_min == ts_max){
+ pos_limit= pos_min;
+ }
+
no_change=0;
while (pos_min < pos_limit) {
#ifdef DEBUG_SEEK
}
ic->file_size = file_size;
- if ((ic->iformat == &mpegps_demux || ic->iformat == &mpegts_demux) && file_size && !ic->pb.is_streamed) {
+ if ((!strcmp(ic->iformat->name, "mpeg") ||
+ !strcmp(ic->iformat->name, "mpegts")) &&
+ file_size && !ic->pb.is_streamed) {
/* get accurate estimate from the PTSes */
av_estimate_timings_from_pts(ic);
} else if (av_has_timings(ic)) {
#define MAX_READ_SIZE 5000000
/* maximum duration until we stop analysing the stream */
-#define MAX_STREAM_DURATION ((int)(AV_TIME_BASE * 2.0))
+#define MAX_STREAM_DURATION ((int)(AV_TIME_BASE * 3.0))
/**
* Read the beginning of a media file to get stream information. This
*/
int av_find_stream_info(AVFormatContext *ic)
{
- int i, count, ret, read_size;
+ int i, count, ret, read_size, j;
AVStream *st;
AVPacket pkt1, *pkt;
AVPacketList *pktl=NULL, **ppktl;
if (!has_codec_parameters(st->codec))
break;
/* variable fps and no guess at the real fps */
- if( st->codec->time_base.den >= 1000LL*st->codec->time_base.num
+ if( st->codec->time_base.den >= 101LL*st->codec->time_base.num
&& duration_count[i]<20 && st->codec->codec_type == CODEC_TYPE_VIDEO)
break;
if(st->parser && st->parser->parser->split && !st->codec->extradata)
ret = -1; /* we could not have all the codec parameters before EOF */
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
- if (!has_codec_parameters(st->codec))
- break;
+ if (!has_codec_parameters(st->codec)){
+ char buf[256];
+ avcodec_string(buf, sizeof(buf), st->codec, 0);
+ av_log(ic, AV_LOG_INFO, "Could not find codec parameters (%s)\n", buf);
+ } else {
+ ret = 0;
+ }
}
- if (i == ic->nb_streams)
- ret = 0;
break;
}
int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
if(i){
st->codec->extradata_size= i;
- st->codec->extradata= av_malloc(st->codec->extradata_size);
+ st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
+ memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
}
}
if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_sample)
st->codec->codec_tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
- if(duration_count[i] && st->codec->time_base.num*1000LL <= st->codec->time_base.den &&
- st->time_base.num*duration_sum[i]/duration_count[i]*1000LL > st->time_base.den){
- AVRational fps1;
- int64_t num, den;
+ if(duration_count[i] && st->codec->time_base.num*101LL <= st->codec->time_base.den &&
+ st->time_base.num*duration_sum[i]/duration_count[i]*101LL > st->time_base.den){
+ int64_t num, den, error, best_error;
num= st->time_base.den*duration_count[i];
den= st->time_base.num*duration_sum[i];
- av_reduce(&fps1.num, &fps1.den, num*1001, den*1000, FFMAX(st->time_base.den, st->time_base.num)/4);
- av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, den, FFMAX(st->time_base.den, st->time_base.num)/4);
- if(fps1.num < st->r_frame_rate.num && fps1.den == 1 && (fps1.num==24 || fps1.num==30)){ //FIXME better decission
- st->r_frame_rate.num= fps1.num*1000;
- st->r_frame_rate.den= fps1.den*1001;
+ best_error= INT64_MAX;
+ for(j=1; j<60*12; j++){
+ error= ABS(1001*12*num - 1001*j*den);
+ if(error < best_error){
+ best_error= error;
+ av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, j, 12, INT_MAX);
+ }
+ }
+ for(j=24; j<=30; j+=6){
+ error= ABS(1001*12*num - 1000*12*j*den);
+ if(error < best_error){
+ best_error= error;
+ av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, j*1000, 1001, INT_MAX);
+ }
}
}
av_parser_close(st->parser);
}
av_free(st->index_entries);
+ av_free(st->codec->extradata);
av_free(st->codec);
av_free(st);
}
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
av_log(NULL, AV_LOG_INFO, ", %5.2f fps(c)", 1/av_q2d(st->codec->time_base));
}
- av_log(NULL, AV_LOG_INFO, ": %s\n", buf);
+ av_log(NULL, AV_LOG_INFO, "\n");
}
}
}
else {
/* Finally we give up and parse it as double */
- *frame_rate_base = DEFAULT_FRAME_RATE_BASE; //FIXME use av_d2q()
- *frame_rate = (int)(strtod(arg, 0) * (*frame_rate_base) + 0.5);
+ 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;
* S+[.m...]
* @endcode
*/
+#ifndef CONFIG_WINCE
int64_t parse_date(const char *datestr, int duration)
{
const char *p;
}
return negative ? -t : t;
}
+#endif /* CONFIG_WINCE */
/**
* Attempts to find a specific tag in a URL.
* @param num must be >= 0
* @param den must be >= 1
*/
-void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
{
num += (den >> 1);
if (num >= den) {
/**
* Set f to (val + 0.5).
*/
-void av_frac_set(AVFrac *f, int64_t val)
+static void av_frac_set(AVFrac *f, int64_t val)
{
f->val = val;
f->num = f->den >> 1;
* @param f fractional number
* @param incr increment, can be positive or negative
*/
-void av_frac_add(AVFrac *f, int64_t incr)
+static void av_frac_add(AVFrac *f, int64_t incr)
{
int64_t num, den;
AVImageFormat *fmt,
int (*alloc_cb)(void *, AVImageInfo *info), void *opaque)
{
- char buf[PROBE_BUF_SIZE];
+ uint8_t buf[PROBE_BUF_MIN];
AVProbeData probe_data, *pd = &probe_data;
offset_t pos;
int ret;
pd->filename = filename;
pd->buf = buf;
pos = url_ftell(pb);
- pd->buf_size = get_buffer(pb, buf, PROBE_BUF_SIZE);
+ pd->buf_size = get_buffer(pb, buf, PROBE_BUF_MIN);
url_fseek(pb, pos, SEEK_SET);
fmt = av_probe_image_format(pd);
}
projects / ffmpeg / blobdiff