Deprecate av_open_input_* and remove their uses.

Deprecate the last remaining member of AVFormatParameters.

libavfilter/vsrc_movie.c

@@ -91,9 +91,9 @@ static int movie_init(AVFilterContext *ctx)
     iformat = movie->format_name ? av_find_input_format(movie->format_name) : NULL;
 
     movie->format_ctx = NULL;
-    if ((ret = av_open_input_file(&movie->format_ctx, movie->file_name, iformat, 0, NULL)) < 0) {
+    if ((ret = avformat_open_input(&movie->format_ctx, movie->file_name, iformat, NULL)) < 0) {
         av_log(ctx, AV_LOG_ERROR,
-               "Failed to av_open_input_file '%s'\n", movie->file_name);
+               "Failed to avformat_open_input '%s'\n", movie->file_name);
         return ret;
     }
     if ((ret = av_find_stream_info(movie->format_ctx)) < 0)

libavformat/applehttp.c

@@ -473,6 +473,11 @@ static int applehttp_read_header(AVFormatContext *s, AVFormatParameters *ap)
         if (v->n_segments == 0)
             continue;
 
+        if (!(v->ctx = avformat_alloc_context())) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+
         v->index  = i;
         v->needed = 1;
         v->parent = s;
@@ -491,8 +496,8 @@ static int applehttp_read_header(AVFormatContext *s, AVFormatParameters *ap)
                                     NULL, 0, 0);
         if (ret < 0)
             goto fail;
-        ret = av_open_input_stream(&v->ctx, &v->pb, v->segments[0]->url,
-                                   in_fmt, NULL);
+        v->ctx->pb       = &v->pb;
+        ret = avformat_open_input(&v->ctx, v->segments[0]->url, in_fmt, NULL);
         if (ret < 0)
             goto fail;
         v->stream_offset = stream_offset;

libavformat/avformat.h

@@ -247,8 +247,8 @@ typedef struct AVFormatParameters {
     attribute_deprecated unsigned int mpeg2ts_compute_pcr:1;
     attribute_deprecated unsigned int initial_pause:1;       /**< Do not begin to play the stream
                                                                   immediately (RTSP only). */
+    attribute_deprecated unsigned int prealloced_context:1;
 #endif
-    unsigned int prealloced_context:1;
 } AVFormatParameters;
 
 //! Demuxer will use avio_open, no opened file should be provided by the caller.
@@ -1016,11 +1016,13 @@ int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
                           const char *filename, void *logctx,
                           unsigned int offset, unsigned int max_probe_size);
 
+#if FF_API_FORMAT_PARAMETERS
 /**
  * Allocate all the structures needed to read an input stream.
  *        This does not open the needed codecs for decoding the stream[s].
+ * @deprecated use avformat_open_input instead.
  */
-int av_open_input_stream(AVFormatContext **ic_ptr,
+attribute_deprecated int av_open_input_stream(AVFormatContext **ic_ptr,
                          AVIOContext *pb, const char *filename,
                          AVInputFormat *fmt, AVFormatParameters *ap);
 
@@ -1035,11 +1037,14 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
  * @param ap Additional parameters needed when opening the file
  *           (NULL if default).
  * @return 0 if OK, AVERROR_xxx otherwise
+ *
+ * @deprecated use avformat_open_input instead.
  */
-int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
+attribute_deprecated int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
                        AVInputFormat *fmt,
                        int buf_size,
                        AVFormatParameters *ap);
+#endif
 
 /**
  * Open an input stream and read the header. The codecs are not opened.

libavformat/avidec.c

@@ -774,7 +774,11 @@ static int read_gab2_sub(AVStream *st, AVPacket *pkt) {
         if (!(sub_demuxer = av_probe_input_format2(&pd, 1, &score)))
             goto error;
 
-        if (!av_open_input_stream(&ast->sub_ctx, pb, "", sub_demuxer, NULL)) {
+        if (!(ast->sub_ctx = avformat_alloc_context()))
+            goto error;
+
+        ast->sub_ctx->pb      = pb;
+        if (!avformat_open_input(&ast->sub_ctx, "", sub_demuxer, NULL)) {
             av_read_packet(ast->sub_ctx, &ast->sub_pkt);
             *st->codec = *ast->sub_ctx->streams[0]->codec;
             ast->sub_ctx->streams[0]->codec->extradata = NULL;
@@ -1334,7 +1338,7 @@ static int avi_read_close(AVFormatContext *s)
         if (ast) {
             if (ast->sub_ctx) {
                 av_freep(&ast->sub_ctx->pb);
-                av_close_input_stream(ast->sub_ctx);
+                av_close_input_file(ast->sub_ctx);
             }
             av_free(ast->sub_buffer);
             av_free_packet(&ast->sub_pkt);

libavformat/rdt.c

@@ -523,7 +523,7 @@ rdt_new_context (void)
 {
     PayloadContext *rdt = av_mallocz(sizeof(PayloadContext));
 
-    av_open_input_stream(&rdt->rmctx, NULL, "", &ff_rdt_demuxer, NULL);
+    avformat_open_input(&rdt->rmctx, "", &ff_rdt_demuxer, NULL);
 
     return rdt;
 }
@@ -539,7 +539,7 @@ rdt_free_context (PayloadContext *rdt)
             av_freep(&rdt->rmst[i]);
         }
     if (rdt->rmctx)
-        av_close_input_stream(rdt->rmctx);
+        av_close_input_file(rdt->rmctx);
     av_freep(&rdt->mlti_data);
     av_freep(&rdt->rmst);
     av_free(rdt);

libavformat/rtpdec_asf.c

@@ -107,10 +107,13 @@ int ff_wms_parse_sdp_a_line(AVFormatContext *s, const char *p)
                    "Failed to fix invalid RTSP-MS/ASF min_pktsize\n");
         init_packetizer(&pb, buf, len);
         if (rt->asf_ctx) {
-            av_close_input_stream(rt->asf_ctx);
+            av_close_input_file(rt->asf_ctx);
             rt->asf_ctx = NULL;
         }
-        ret = av_open_input_stream(&rt->asf_ctx, &pb, "", &ff_asf_demuxer, NULL);
+        if (!(rt->asf_ctx = avformat_alloc_context()))
+            return AVERROR(ENOMEM);
+        rt->asf_ctx->pb      = &pb;
+        ret = avformat_open_input(&rt->asf_ctx, "", &ff_asf_demuxer, NULL);
         if (ret < 0)
             return ret;
         av_dict_copy(&s->metadata, rt->asf_ctx->metadata, 0);

libavformat/sapdec.c

@@ -52,7 +52,7 @@ static int sap_read_close(AVFormatContext *s)
 {
     struct SAPState *sap = s->priv_data;
     if (sap->sdp_ctx)
-        av_close_input_stream(sap->sdp_ctx);
+        av_close_input_file(sap->sdp_ctx);
     if (sap->ann_fd)
         ffurl_close(sap->ann_fd);
     av_freep(&sap->sdp);
@@ -156,9 +156,8 @@ static int sap_read_header(AVFormatContext *s,
         goto fail;
     }
     sap->sdp_ctx->max_delay = s->max_delay;
-    ap->prealloced_context = 1;
-    ret = av_open_input_stream(&sap->sdp_ctx, &sap->sdp_pb, "temp.sdp",
-                               infmt, ap);
+    sap->sdp_ctx->pb        = &sap->sdp_pb;
+    ret = avformat_open_input(&sap->sdp_ctx, "temp.sdp", infmt, NULL);
     if (ret < 0)
         goto fail;
     if (sap->sdp_ctx->ctx_flags & AVFMTCTX_NOHEADER)

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)