Merge commit '1a9f9f8' into oldabi

* commit '1a9f9f8': (98 commits)
  Do not drop packets with no valid ->pos set as e.g. DV-in-AVI produces.
  FFMPEG: support demuxer specific options. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  AVIDEC: use_odmc demuxer specific option. (mostly an exmaple for demuxer specific options) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  LAVFAPI: demuxer specific options. (someone please add doxy) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  output_example: use avformat_alloc_output_context() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  LAVFAPI: avformat_alloc_output_context() / simplify usage of muxers. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  LAVF API: remove AVOutputFormat.set_parameters() the field is unused. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  CrystalHD: Add auto-detection of packed b-frame bug.
  lavc: remove disabled avcodec_decode_video() code
  Read the album_artist, grouping and lyrics metadata.
  In libx264 wrapper, change wpredp to a codec specific option.
  AMV: disable DR1 and don't override EMU_EDGE
  lavf: inspect more frames for fps when container time base is coarse
  Fix races in default av_log handler
  flashsv2enc: regression test. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  vorbis: Replace sized int_fast integer types with plain int/unsigned.
  Remove disabled non-optimized code variants.
  bswap.h: Remove disabled code.
  Remove some disabled printf debug cruft.
  Replace more disabled printf() calls by av_dlog().
  ...

Conflicts:
	libavcodec/options.c
	libavcodec/qpeg.c
	libavfilter/avfilter.h
	libavformat/avformat.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 66 insertions, 7 deletions

diff --git a/libavformat/utils.c b/libavformat/utils.c
index ffb114d5e9..f99adab712 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -496,6 +496,10 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
             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;
     }
@@ -504,13 +508,13 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
     if (ic->pb)
         ff_id3v2_read(ic, ID3v2_DEFAULT_MAGIC);
 
-    if (ic->iformat->read_header) {
+    if (!(ic->flags&AVFMT_FLAG_PRIV_OPT) && ic->iformat->read_header) {
         err = ic->iformat->read_header(ic, ap);
         if (err < 0)
             goto fail;
     }
 
-    if (pb && !ic->data_offset)
+    if (!(ic->flags&AVFMT_FLAG_PRIV_OPT) && pb && !ic->data_offset)
         ic->data_offset = avio_tell(ic->pb);
 
 #if FF_API_OLD_METADATA
@@ -541,6 +545,22 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
     return err;
 }
 
+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)
@@ -2807,14 +2827,53 @@ int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap)
     } else
         s->priv_data = NULL;
 
-    if (s->oformat->set_parameters) {
-        ret = s->oformat->set_parameters(s, ap);
-        if (ret < 0)
-            return ret;
-    }
     return 0;
 }
 
+AVFormatContext *avformat_alloc_output_context(const char *format, AVOutputFormat *oformat, const char *filename){
+    AVFormatContext *s= avformat_alloc_context();
+    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);
+                goto error;
+            }
+        } else {
+            oformat = av_guess_format(NULL, filename, NULL);
+            if (!oformat) {
+                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));
+    return s;
+nomem:
+    av_log(s, AV_LOG_ERROR, "Out of memory\n");
+error:
+    avformat_free_context(s);
+    return NULL;
+}
+
 static int validate_codec_tag(AVFormatContext *s, AVStream *st)
 {
     const AVCodecTag *avctag;