(av_get_frame_filename(buf, sizeof(buf), filename, 1) >= 0);
}
-AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened,
- int *score_ret)
-{
- AVProbeData lpd = *pd;
- AVInputFormat *fmt1 = NULL, *fmt;
- int score, nodat = 0, score_max = 0;
- const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
-
- if (!lpd.buf)
- lpd.buf = zerobuffer;
-
- if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
- int id3len = ff_id3v2_tag_len(lpd.buf);
- if (lpd.buf_size > id3len + 16) {
- lpd.buf += id3len;
- lpd.buf_size -= id3len;
- } else if (id3len >= PROBE_BUF_MAX) {
- nodat = 2;
- } else
- nodat = 1;
- }
-
- fmt = NULL;
- while ((fmt1 = av_iformat_next(fmt1))) {
- if (!is_opened == !(fmt1->flags & AVFMT_NOFILE))
- continue;
- score = 0;
- if (fmt1->read_probe) {
- score = fmt1->read_probe(&lpd);
- if (fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions)) {
- if (nodat == 0) score = FFMAX(score, 1);
- else if (nodat == 1) score = FFMAX(score, AVPROBE_SCORE_EXTENSION / 2 - 1);
- else score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
- }
- } else if (fmt1->extensions) {
- if (av_match_ext(lpd.filename, fmt1->extensions))
- score = AVPROBE_SCORE_EXTENSION;
- }
- if (score > score_max) {
- score_max = score;
- fmt = fmt1;
- } else if (score == score_max)
- fmt = NULL;
- }
- if (nodat == 1)
- score_max = FFMIN(AVPROBE_SCORE_EXTENSION / 2 - 1, score_max);
- *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)
{
if (!strcmp(fmt->name, fmt_id_type[i].name)) {
st->codec->codec_id = fmt_id_type[i].id;
st->codec->codec_type = fmt_id_type[i].type;
- break;
+ return score;
}
}
}
- return score;
+ return 0;
}
/************************************************************/
return 0;
}
-
-int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
- const char *filename, void *logctx,
- unsigned int offset, unsigned int max_probe_size)
-{
- AVProbeData pd = { filename ? filename : "" };
- uint8_t *buf = NULL;
- uint8_t *mime_type;
- int ret = 0, probe_size, buf_offset = 0;
- int score = 0;
-
- if (!max_probe_size)
- max_probe_size = PROBE_BUF_MAX;
- else if (max_probe_size < PROBE_BUF_MIN) {
- av_log(logctx, AV_LOG_ERROR,
- "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);
- return AVERROR(EINVAL);
- }
-
- if (offset >= max_probe_size)
- return AVERROR(EINVAL);
-
- if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
- if (!av_strcasecmp(mime_type, "audio/aacp")) {
- *fmt = av_find_input_format("aac");
- }
- av_freep(&mime_type);
- }
-
- for (probe_size = PROBE_BUF_MIN; probe_size <= max_probe_size && !*fmt;
- probe_size = FFMIN(probe_size << 1,
- FFMAX(max_probe_size, probe_size + 1))) {
- score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
-
- /* Read probe data. */
- if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
- return ret;
- if ((ret = avio_read(pb, buf + buf_offset,
- probe_size - buf_offset)) < 0) {
- /* Fail if error was not end of file, otherwise, lower score. */
- if (ret != AVERROR_EOF) {
- av_free(buf);
- return ret;
- }
- score = 0;
- ret = 0; /* error was end of file, nothing read */
- }
- buf_offset += ret;
- if (buf_offset < offset)
- continue;
- pd.buf_size = buf_offset - offset;
- pd.buf = &buf[offset];
-
- memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
-
- /* Guess file format. */
- *fmt = av_probe_input_format2(&pd, 1, &score);
- if (*fmt) {
- /* This can only be true in the last iteration. */
- if (score <= AVPROBE_SCORE_RETRY) {
- 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,
- "Format %s probed with size=%d and score=%d\n",
- (*fmt)->name, probe_size, score);
-#if 0
- FILE *f = fopen("probestat.tmp", "ab");
- fprintf(f, "probe_size:%d format:%s score:%d filename:%s\n", probe_size, (*fmt)->name, score, filename);
- fclose(f);
-#endif
- }
- }
-
- if (!*fmt) {
- av_free(buf);
- return AVERROR_INVALIDDATA;
- }
-
- /* Rewind. Reuse probe buffer to avoid seeking. */
- ret = ffio_rewind_with_probe_data(pb, &buf, buf_offset);
-
- return ret < 0 ? ret : score;
-}
-
-int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
- const char *filename, void *logctx,
- unsigned int offset, unsigned int max_probe_size)
-{
- int ret = av_probe_input_buffer2(pb, fmt, filename, logctx, offset, max_probe_size);
- return ret < 0 ? ret : 0;
-}
-
/* Open input file and probe the format if necessary. */
static int init_input(AVFormatContext *s, const char *filename,
AVDictionary **options)
int av_find_default_stream_index(AVFormatContext *s)
{
- int first_audio_index = -1;
int i;
AVStream *st;
+ int best_stream = 0;
+ int best_score = -1;
if (s->nb_streams <= 0)
return -1;
for (i = 0; i < s->nb_streams; i++) {
+ int score = 0;
st = s->streams[i];
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
!(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
- return i;
+ if (!st->codec->width && !st->codec->height && !st->codec_info_nb_frames)
+ score += 25;
+ else
+ score += 100;
+ }
+ if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+ if (!st->codec->sample_rate && !st->codec_info_nb_frames)
+ score += 12;
+ else
+ score += 50;
+ }
+
+ if (score > best_score) {
+ best_score = score;
+ best_stream = i;
}
- if (first_audio_index < 0 &&
- st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
- first_audio_index = i;
}
- return first_audio_index >= 0 ? first_audio_index : 0;
+ return best_stream;
}
/** Flush the frame reader. */
int64_t old_offset = avio_tell(ic->pb);
// new streams might appear, no options for those
int orig_nb_streams = ic->nb_streams;
- int flush_codecs = ic->probesize > 0;
+ int flush_codecs;
int64_t max_analyze_duration = ic->max_analyze_duration2;
+ int64_t probesize = ic->probesize2;
+
if (!max_analyze_duration)
max_analyze_duration = ic->max_analyze_duration;
+ if (ic->probesize)
+ probesize = ic->probesize;
+ flush_codecs = probesize > 0;
av_opt_set(ic, "skip_clear", "1", AV_OPT_SEARCH_CHILDREN);
}
}
/* We did not get all the codec info, but we read too much data. */
- if (read_size >= ic->probesize) {
+ if (read_size >= probesize) {
ret = count;
av_log(ic, AV_LOG_DEBUG,
- "Probe buffer size limit of %d bytes reached\n", ic->probesize);
+ "Probe buffer size limit of %"PRId64" bytes reached\n", probesize);
for (i = 0; i < ic->nb_streams; i++)
if (!ic->streams[i]->r_frame_rate.num &&
ic->streams[i]->info->duration_count <= 1 &&
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
if (st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample) {
uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
- if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)
+ if (avpriv_find_pix_fmt(avpriv_get_raw_pix_fmt_tags(), tag) == st->codec->pix_fmt)
st->codec->codec_tag= tag;
}
}
}
- if (ic->probesize)
+ if (probesize)
estimate_timings(ic, old_offset);
if (ret >= 0 && ic->nb_streams)
projects / ffmpeg / blobdiff