diff options
Diffstat (limited to 'libavformat/utils.c')
| -rw-r--r-- | libavformat/utils.c | 161 |
1 files changed, 56 insertions, 105 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 31cdde3edb..5865495954 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -27,6 +27,7 @@ #include "libavcodec/internal.h" #include "libavutil/opt.h" #include "libavutil/dict.h" +#include "libavutil/pixdesc.h" #include "metadata.h" #include "id3v2.h" #include "libavutil/avstring.h" @@ -388,6 +389,47 @@ static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st, AVProbeDa /************************************************************/ /* input media file */ +#if FF_API_FORMAT_PARAMETERS +static AVDictionary *convert_format_parameters(AVFormatParameters *ap) +{ + char buf[1024]; + AVDictionary *opts = NULL; + + if (ap->time_base.num) { + snprintf(buf, sizeof(buf), "%d/%d", ap->time_base.den, ap->time_base.num); + av_dict_set(&opts, "framerate", buf, 0); + } + if (ap->sample_rate) { + snprintf(buf, sizeof(buf), "%d", ap->sample_rate); + av_dict_set(&opts, "sample_rate", buf, 0); + } + if (ap->channels) { + snprintf(buf, sizeof(buf), "%d", ap->channels); + av_dict_set(&opts, "channels", buf, 0); + } + if (ap->width || ap->height) { + snprintf(buf, sizeof(buf), "%dx%d", ap->width, ap->height); + av_dict_set(&opts, "video_size", buf, 0); + } + if (ap->pix_fmt != PIX_FMT_NONE) { + av_dict_set(&opts, "pixel_format", av_get_pix_fmt_name(ap->pix_fmt), 0); + } + if (ap->channel) { + snprintf(buf, sizeof(buf), "%d", ap->channel); + av_dict_set(&opts, "channel", buf, 0); + } + if (ap->standard) { + av_dict_set(&opts, "standard", ap->standard, 0); + } + if (ap->mpeg2ts_compute_pcr) { + av_dict_set(&opts, "mpeg2ts_compute_pcr", "1", 0); + } + if (ap->initial_pause) { + av_dict_set(&opts, "initial_pause", "1", 0); + } + return opts; +} + /** * Open a media file from an IO stream. 'fmt' must be specified. */ @@ -396,6 +438,7 @@ int av_open_input_stream(AVFormatContext **ic_ptr, AVInputFormat *fmt, AVFormatParameters *ap) { int err; + AVDictionary *opts; AVFormatContext *ic; AVFormatParameters default_ap; @@ -403,6 +446,7 @@ int av_open_input_stream(AVFormatContext **ic_ptr, ap=&default_ap; memset(ap, 0, sizeof(default_ap)); } + opts = convert_format_parameters(ap); if(!ap->prealloced_context) ic = avformat_alloc_context(); @@ -412,63 +456,15 @@ int av_open_input_stream(AVFormatContext **ic_ptr, err = AVERROR(ENOMEM); goto fail; } - ic->iformat = fmt; ic->pb = pb; - ic->duration = AV_NOPTS_VALUE; - ic->start_time = AV_NOPTS_VALUE; - 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(ENOMEM); - goto fail; - } - if (fmt->priv_class) { - *(const AVClass**)ic->priv_data = fmt->priv_class; - av_opt_set_defaults(ic->priv_data); - } - } else { - ic->priv_data = NULL; - } - - // e.g. AVFMT_NOFILE formats will not have a AVIOContext - if (ic->pb) - ff_id3v2_read(ic, ID3v2_DEFAULT_MAGIC); + err = avformat_open_input(ic_ptr, filename, fmt, &opts); - if (ic->iformat->read_header) { - err = ic->iformat->read_header(ic, ap); - if (err < 0) - goto fail; - } - - if (pb && !ic->data_offset) - ic->data_offset = avio_tell(ic->pb); - - ic->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE; - - *ic_ptr = ic; - return 0; - fail: - if (ic) { - int i; - av_freep(&ic->priv_data); - for(i=0;i<ic->nb_streams;i++) { - AVStream *st = ic->streams[i]; - if (st) { - av_free(st->priv_data); - av_free(st->codec->extradata); - av_free(st->codec); - av_free(st->info); - } - av_free(st); - } - } - av_free(ic); - *ic_ptr = NULL; +fail: + av_dict_free(&opts); return err; } +#endif /** size of probe buffer, for guessing file type from file contents */ #define PROBE_BUF_MIN 2048 @@ -541,69 +537,24 @@ int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, return ret; } +#if FF_API_FORMAT_PARAMETERS int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, AVInputFormat *fmt, int buf_size, AVFormatParameters *ap) { int err; - AVProbeData probe_data, *pd = &probe_data; - AVIOContext *pb = NULL; - void *logctx= ap && ap->prealloced_context ? *ic_ptr : NULL; - - pd->filename = ""; - if (filename) - pd->filename = filename; - pd->buf = NULL; - pd->buf_size = 0; - - if (!fmt) { - /* guess format if no file can be opened */ - fmt = av_probe_input_format(pd, 0); - } - - /* Do not open file if the format does not need it. XXX: specific - hack needed to handle RTSP/TCP */ - if (!fmt || !(fmt->flags & AVFMT_NOFILE)) { - /* if no file needed do not try to open one */ - if ((err=avio_open(&pb, filename, AVIO_FLAG_READ)) < 0) { - goto fail; - } - if (buf_size > 0) { - ffio_set_buf_size(pb, buf_size); - } - if (!fmt && (err = av_probe_input_buffer(pb, &fmt, filename, logctx, 0, logctx ? (*ic_ptr)->probesize : 0)) < 0) { - goto fail; - } - } + AVDictionary *opts = convert_format_parameters(ap); - /* if still no format found, error */ - if (!fmt) { - err = AVERROR_INVALIDDATA; - goto fail; - } + if (!ap->prealloced_context) + *ic_ptr = NULL; - /* check filename in case an image number is expected */ - if (fmt->flags & AVFMT_NEEDNUMBER) { - if (!av_filename_number_test(filename)) { - err = AVERROR(EINVAL); - goto fail; - } - } - err = av_open_input_stream(ic_ptr, pb, filename, fmt, ap); - if (err) - goto fail; - return 0; - fail: - av_freep(&pd->buf); - if (pb) - avio_close(pb); - if (ap && ap->prealloced_context) - av_free(*ic_ptr); - *ic_ptr = NULL; - return err; + err = avformat_open_input(ic_ptr, filename, fmt, &opts); + av_dict_free(&opts); + return err; } +#endif /* open input file and probe the format if necessary */ static int init_input(AVFormatContext *s, const char *filename) |