Enhance GLMediaPlayer: Full FFMPeg support, 'dshow' camera support on windows, 2 more pixel formats, fail-safe data handling

- add support for ffmpeg 2 / libav 10 -> lavc55_lavf55_lavu52_lavr01

- add support for ffmpeg libswresample (similar to libavresample)

- handle BGRA (GL type) and BGR24 (texture shader)

- Change Camera URI semantics, drop 'host' and use 'path' for camera ID
  and use 'query' for options.

- add support for Window's DShow camera selection
  - our camera id -> index of list of video-input devices,
    this gives us same behavior as w/ Linux
  - requires windows libs: strmiids, uuid, ole32, oleaut32
  - Compiles w/ MingW64, works w/ libav/ffmpeg
  - TODO: test compilation w/ MingW 32bit !

- don't push data to texture if (linesize <= 0)
  this may happen due to buggy decoder / setup ..

Tested manually on GNU/Linux x64 and Windows x64:
  - GNU/Linux libav 0.8, libav 9, libav 10, ffmpeg 1.2, ffmpeg 2.0
  - Windows   libav 0.8, libav 9, ffmpeg 2.0
  - videos and camera

1 files changed, 24 insertions, 13 deletions

diff --git a/src/jogl/native/libav/ffmpeg_tool.h b/src/jogl/native/libav/ffmpeg_tool.h
index ea9625da6..e4b10f95f 100644
--- a/src/jogl/native/libav/ffmpeg_tool.h
+++ b/src/jogl/native/libav/ffmpeg_tool.h
@@ -45,13 +45,20 @@
 #include "libavformat/avformat.h"
 #include "libavutil/avutil.h"
 #if LIBAVCODEC_VERSION_MAJOR >= 54
-#include "libavresample/avresample.h"
+    #include "libavresample/avresample.h"
+    #include "libswresample/swresample.h"
 #endif
 
 #ifndef LIBAVRESAMPLE_VERSION_MAJOR
-#define LIBAVRESAMPLE_VERSION_MAJOR 0
+#define LIBAVRESAMPLE_VERSION_MAJOR -1
+// Opaque
 typedef void* AVAudioResampleContext;
 #endif
+#ifndef LIBSWRESAMPLE_VERSION_MAJOR
+#define LIBSWRESAMPLE_VERSION_MAJOR -1
+// Opaque
+typedef struct SwrContext SwrContext;
+#endif
 
 #include <stdarg.h>
 #include <stdio.h>
@@ -88,24 +95,27 @@ typedef void (APIENTRYP PFNGLFINISH) (void);
 /** Constant PTS marking the end of the stream, i.e. Integer.MIN_VALUE - 1 == 0x7FFFFFFF == {@value}. Sync w/ TimeFrameI.END_OF_STREAM_PTS */
 #define END_OF_STREAM_PTS 0x7FFFFFFF
 
-/** Until 55.0.0, but stopped working w/ 54 already :( */
-#define AV_HAS_API_REQUEST_CHANNELS(pAV) (AV_VERSION_MAJOR(pAV->avcodecVersion) < 54)
-
-/** Since 55.0.0 */
-#define AV_HAS_API_REFCOUNTED_FRAMES(pAV) (AV_VERSION_MAJOR(pAV->avcodecVersion) >= 55)
-
 /** Since 54.0.0.1 */
-#define AV_HAS_API_AVRESAMPLE(pAV) (AV_VERSION_MAJOR(pAV->avresampleVersion) >= 1)
+#define AV_HAS_API_AVRESAMPLE(pAV) ( pAV->avresampleVersion != 0 )
+
+/** Since 55.0.0.1 */
+#define AV_HAS_API_SWRESAMPLE(pAV) ( pAV->swresampleVersion != 0 )
 
 #define MAX_INT(a,b) ( (a >= b) ? a : b )
 #define MIN_INT(a,b) ( (a <= b) ? a : b )
 
 static inline float my_av_q2f(AVRational a){
-    return a.num / (float) a.den;
+    return (float)a.num / (float)a.den;
+}
+static inline float my_av_q2f_r(AVRational a){
+    return (float)a.den / (float)a.num;
 }
 static inline int32_t my_av_q2i32(int64_t snum, AVRational a){
     return (int32_t) ( ( snum * (int64_t) a.num ) / (int64_t)a.den );
 }
+static inline int my_align(int v, int a){
+    return ( v + a - 1 ) & ~( a - 1 );
+}
 
 typedef struct {
     void *origPtr;
@@ -129,6 +139,7 @@ typedef struct {
     uint32_t         avformatVersion;
     uint32_t         avutilVersion;
     uint32_t         avresampleVersion;
+    uint32_t         swresampleVersion;
 
     int32_t          useRefCountedFrames;
 
@@ -149,8 +160,7 @@ typedef struct {
     enum PixelFormat vPixFmt;    // native decoder fmt
     int32_t          vPTS;       // msec - overall last video PTS
     PTSStats         vPTSStats;
-    int32_t          vLinesize[3];  // decoded video linesize in bytes for each plane
-    int32_t          vTexWidth[3];  // decoded video tex width in bytes for each plane
+    int32_t          vTexWidth[AV_NUM_DATA_POINTERS];  // decoded video tex width in bytes for each plane
     int32_t          vWidth;
     int32_t          vHeight;
 
@@ -167,7 +177,8 @@ typedef struct {
     int32_t          aSampleRate;
     int32_t          aChannels;
     int32_t          aSinkSupport; // supported by AudioSink
-    AVAudioResampleContext *aResampleCtx;
+    AVAudioResampleContext* avResampleCtx;
+    struct SwrContext*      swResampleCtx;
     uint8_t*         aResampleBuffer;
     enum AVSampleFormat aSampleFmtOut; // out fmt
     int32_t          aChannelsOut;