[FFmpeg-devel] [PATCH] mjpegdec: parse JPS extension and save relevant stereo3d information

[Michael Niedermayer]

On Wed, Jan 29, 2014 at 09:30:50PM +0400, Kirill Gavrilov wrote:
> Parse JPS extension (specified by VRex) stored in JPEG files.
> 
> Sample file:
> http://www.andrewwoods3d.com/gallery/curtin00.jps
> 
> Specification:
> http://paulbourke.net/dataformats/stereoimage/spec.pdf
> -----------------------------------------------
> Kirill Gavrilov,
> <kirill at sview.ru>

>  mjpegdec.c |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
>  mjpegdec.h |    3 +++
>  2 files changed, 52 insertions(+)
> 9579850ca31d9c65dfaadc19f88cc37c21e49ae6  0001-mjpegdec-parse-JPS-extension-and-save-relevant-stere.patch
> From 73e3a6f55d15c21df5e3815e62878854d70d5ac1 Mon Sep 17 00:00:00 2001
> From: Kirill Gavrilov <kirill at sview.ru>
> Date: Wed, 29 Jan 2014 21:22:24 +0400
> Subject: [PATCH] mjpegdec: parse JPS extension and save relevant stereo3d
>  information

applied

btw it seems ffprobe doesnt support showing avframe side data
heres a quick proof of concept patch, that prints something
maybe you (or someone else) wants t improve it ?

also a fate test for this wuld be welcome too

diff --git a/ffprobe.c b/ffprobe.c
index ef3bcc6..b1bea5d 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -1712,6 +1712,7 @@ static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
 {
     AVBPrint pbuf;
     const char *s;
+    int i;

     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

@@ -1755,6 +1756,12 @@ static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
         print_int("interlaced_frame",       frame->interlaced_frame);
         print_int("top_field_first",        frame->top_field_first);
         print_int("repeat_pict",            frame->repeat_pict);
+        print_int("repeat_pict",            frame->repeat_pict);
+        for (i = 0; i < frame->nb_side_data; i++) {
+            AVFrameSideData *sd = frame->side_data[i];
+            print_int("side_data_type", sd->type);
+            print_int("side_data_size", sd->size);
+        }
         break;

     case AVMEDIA_TYPE_AUDIO:

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Freedom in capitalist society always remains about the same as it was in
ancient Greek republics: Freedom for slave owners. -- Vladimir Lenin
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