Merge commit '16302246b1fcb7ad4e6f7bd31c49956a455336d2'

* commit '16302246b1fcb7ad4e6f7bd31c49956a455336d2':
  avconv: Add an option for automatically rotating video according to display matrix

Conflicts:
	Changelog
	ffmpeg_opt.c

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

6 files changed, 58 insertions, 0 deletions

diff --git a/Changelog b/Changelog
index 02dd77b235..623d10ade1 100644
--- a/Changelog
+++ b/Changelog
@@ -18,6 +18,7 @@ version <next>:
 - nvenc level and tier options
 - chorus filter
 - Canopus HQ/HQA decoder
+- Automatically rotate videos based on metadata in ffmpeg
 
 
 version 2.6:
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index c66cb16d64..7cd81b080a 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -462,6 +462,9 @@ Technical note -- attachments are implemented as codec extradata, so this
 option can actually be used to extract extradata from any stream, not just
 attachments.
 
+@item -noautorotate
+Disable automatically rotating video based on file metadata.
+
 @end table
 
 @section Video Options
diff --git a/ffmpeg.c b/ffmpeg.c
index 7e5b16d0ec..8c288ae366 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3647,6 +3647,8 @@ static int process_input(int file_index)
 
             if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
                 continue;
+            if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
+                continue;
 
             dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
             if (!dst_data)
diff --git a/ffmpeg.h b/ffmpeg.h
index 71061daff6..800bd0ab0e 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -122,6 +122,8 @@ typedef struct OptionsContext {
     int        nb_hwaccels;
     SpecifierOpt *hwaccel_devices;
     int        nb_hwaccel_devices;
+    SpecifierOpt *autorotate;
+    int        nb_autorotate;
 
     /* output options */
     StreamMap *stream_maps;
@@ -276,6 +278,7 @@ typedef struct InputStream {
     int top_field_first;
     int guess_layout_max;
 
+    int autorotate;
     int resample_height;
     int resample_width;
     int resample_pix_fmt;
diff --git a/ffmpeg_filter.c b/ffmpeg_filter.c
index 264840b2e9..6a891d3d10 100644
--- a/ffmpeg_filter.c
+++ b/ffmpeg_filter.c
@@ -31,6 +31,7 @@
 #include "libavutil/avstring.h"
 #include "libavutil/bprint.h"
 #include "libavutil/channel_layout.h"
+#include "libavutil/display.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/pixfmt.h"
@@ -339,6 +340,28 @@ static int insert_trim(int64_t start_time, int64_t duration,
     return 0;
 }
 
+static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
+                         const char *filter_name, const char *args)
+{
+    AVFilterGraph *graph = (*last_filter)->graph;
+    AVFilterContext *ctx;
+    int ret;
+
+    ret = avfilter_graph_create_filter(&ctx,
+                                       avfilter_get_by_name(filter_name),
+                                       filter_name, args, NULL, graph);
+    if (ret < 0)
+        return ret;
+
+    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
+    if (ret < 0)
+        return ret;
+
+    *last_filter = ctx;
+    *pad_idx     = 0;
+    return 0;
+}
+
 static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 {
     char *pix_fmts;
@@ -676,6 +699,26 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
         return ret;
     last_filter = ifilter->filter;
 
+    if (ist->autorotate) {
+        uint8_t* displaymatrix = av_stream_get_side_data(ist->st,
+                                                         AV_PKT_DATA_DISPLAYMATRIX, NULL);
+        if (displaymatrix) {
+            double rot = av_display_rotation_get((int32_t*) displaymatrix);
+            if (rot < -135 || rot > 135) {
+                ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
+                if (ret < 0)
+                    return ret;
+                ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
+            } else if (rot < -45) {
+                ret = insert_filter(&last_filter, &pad_idx, "transpose", "dir=clock");
+            } else if (rot > 45) {
+                ret = insert_filter(&last_filter, &pad_idx, "transpose", "dir=cclock");
+            }
+            if (ret < 0)
+                return ret;
+        }
+    }
+
     if (ist->framerate.num) {
         AVFilterContext *setpts;
 
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 75c80e792e..f59b93bba6 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -602,6 +602,9 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
         ist->ts_scale = 1.0;
         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 
+        ist->autorotate = 1;
+        MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
+
         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
         if (codec_tag) {
             uint32_t tag = strtol(codec_tag, &next, 0);
@@ -3069,6 +3072,9 @@ const OptionDef options[] = {
 #if HAVE_VDPAU_X11
     { "vdpau_api_ver", HAS_ARG | OPT_INT | OPT_EXPERT, { &vdpau_api_ver }, "" },
 #endif
+    { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
+                          OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
+        "automatically insert correct rotate filters" },
 
     /* audio options */
     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },