Merge remote-tracking branch 'qatar/master'

* qatar/master:
  cljr: K&R cosmetics
  cljr: return a more sensible value when encountering invalid headers
  cljr: drop unnecessary emms_c() calls without MMX code
  cljr: remove useless casts
  cljr: group encode/decode parts under single ifdefs
  cljr: remove stray semicolon
  cljr: add missing return statement in decode_end()
  doc: add pulseaudio to the input list
  avconv: remove unsubstantiated comment
  shorten: avoid abort() on unknown audio types
  cljr: add encoder
  build: merge lists of HTML documentation targets
  tests/examples: Mark some variables only used within their files as static.
  tests/tools/examples: Replace direct exit() calls by return.
  x86 cpuid: set vendor union members separately
  cljr: release picture at end of decoding
  rv40: NEON optimised rv40 qpel motion compensation

Conflicts:
	doc/examples/muxing.c
	libavcodec/cljr.c
	libavcodec/version.h

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

1 files changed, 81 insertions, 72 deletions

diff --git a/libavcodec/cljr.c b/libavcodec/cljr.c
index 53ab40cbe2..183652b3a1 100644
--- a/libavcodec/cljr.c
+++ b/libavcodec/cljr.c
@@ -25,119 +25,92 @@
  */
 
 #include "avcodec.h"
-#include "dsputil.h"
 #include "get_bits.h"
+#include "put_bits.h"
 
-/* Disable the encoder. */
-#undef CONFIG_CLJR_ENCODER
-#define CONFIG_CLJR_ENCODER 0
-
-typedef struct CLJRContext{
+typedef struct CLJRContext {
     AVCodecContext *avctx;
-    AVFrame picture;
+    AVFrame         picture;
 } CLJRContext;
 
+static av_cold int common_init(AVCodecContext *avctx)
+{
+    CLJRContext * const a = avctx->priv_data;
+
+    avcodec_get_frame_defaults(&a->picture);
+    avctx->coded_frame = &a->picture;
+    a->avctx = avctx;
+
+    return 0;
+}
+
+#if CONFIG_CLJR_DECODER
 static int decode_frame(AVCodecContext *avctx,
                         void *data, int *data_size,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
+    int buf_size       = avpkt->size;
     CLJRContext * const a = avctx->priv_data;
     GetBitContext gb;
     AVFrame *picture = data;
-    AVFrame * const p= (AVFrame*)&a->picture;
+    AVFrame * const p = &a->picture;
     int x, y;
 
-    if(p->data[0])
+    if (p->data[0])
         avctx->release_buffer(avctx, p);
 
-    if(buf_size/avctx->height < avctx->width) {
-        av_log(avctx, AV_LOG_ERROR, "Resolution larger than buffer size. Invalid header?\n");
-        return -1;
+    if (buf_size / avctx->height < avctx->width) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Resolution larger than buffer size. Invalid header?\n");
+        return AVERROR_INVALIDDATA;
     }
 
-    p->reference= 0;
-    if(avctx->get_buffer(avctx, p) < 0){
+    p->reference = 0;
+    if (avctx->get_buffer(avctx, p) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return -1;
     }
-    p->pict_type= AV_PICTURE_TYPE_I;
-    p->key_frame= 1;
+    p->pict_type = AV_PICTURE_TYPE_I;
+    p->key_frame = 1;
 
     init_get_bits(&gb, buf, buf_size * 8);
 
-    for(y=0; y<avctx->height; y++){
-        uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ];
-        uint8_t *cb= &a->picture.data[1][ y*a->picture.linesize[1] ];
-        uint8_t *cr= &a->picture.data[2][ y*a->picture.linesize[2] ];
-        for(x=0; x<avctx->width; x+=4){
+    for (y = 0; y < avctx->height; y++) {
+        uint8_t *luma = &a->picture.data[0][y * a->picture.linesize[0]];
+        uint8_t *cb   = &a->picture.data[1][y * a->picture.linesize[1]];
+        uint8_t *cr   = &a->picture.data[2][y * a->picture.linesize[2]];
+        for (x = 0; x < avctx->width; x += 4) {
             luma[3] = get_bits(&gb, 5) << 3;
             luma[2] = get_bits(&gb, 5) << 3;
             luma[1] = get_bits(&gb, 5) << 3;
             luma[0] = get_bits(&gb, 5) << 3;
-            luma+= 4;
+            luma += 4;
             *(cb++) = get_bits(&gb, 6) << 2;
             *(cr++) = get_bits(&gb, 6) << 2;
         }
     }
 
-    *picture= *(AVFrame*)&a->picture;
+    *picture   = a->picture;
     *data_size = sizeof(AVPicture);
 
-    emms_c();
-
     return buf_size;
 }
 
-#if CONFIG_CLJR_ENCODER
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
-    CLJRContext * const a = avctx->priv_data;
-    AVFrame *pict = data;
-    AVFrame * const p= (AVFrame*)&a->picture;
-    int size;
-
-    *p = *pict;
-    p->pict_type= AV_PICTURE_TYPE_I;
-    p->key_frame= 1;
-
-    emms_c();
-
-    avpriv_align_put_bits(&a->pb);
-    while(get_bit_count(&a->pb)&31)
-        put_bits(&a->pb, 8, 0);
-
-    size= get_bit_count(&a->pb)/32;
-
-    return size*4;
-}
-#endif
-
-static av_cold void common_init(AVCodecContext *avctx){
-    CLJRContext * const a = avctx->priv_data;
-
-    avcodec_get_frame_defaults(&a->picture);
-    avctx->coded_frame= (AVFrame*)&a->picture;
-    a->avctx= avctx;
-}
-
-static av_cold int decode_init(AVCodecContext *avctx){
-
-    common_init(avctx);
-
-    avctx->pix_fmt= PIX_FMT_YUV411P;
-
-    return 0;
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+    avctx->pix_fmt = PIX_FMT_YUV411P;
+    return common_init(avctx);
 }
 
-#if CONFIG_CLJR_ENCODER
-static av_cold int encode_init(AVCodecContext *avctx){
-
-    common_init(avctx);
+static av_cold int decode_end(AVCodecContext *avctx)
+{
+    CLJRContext *a = avctx->priv_data;
 
+    if (a->picture.data[0])
+        avctx->release_buffer(avctx, &a->picture);
     return 0;
 }
-#endif
 
 AVCodec ff_cljr_decoder = {
     .name           = "cljr",
@@ -145,19 +118,55 @@ AVCodec ff_cljr_decoder = {
     .id             = CODEC_ID_CLJR,
     .priv_data_size = sizeof(CLJRContext),
     .init           = decode_init,
+    .close          = decode_end,
     .decode         = decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
+    .long_name      = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
 };
+#endif
 
 #if CONFIG_CLJR_ENCODER
+static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
+                        int buf_size, void *data)
+{
+    PutBitContext pb;
+    AVFrame *p = data;
+    int x, y;
+
+    p->pict_type = AV_PICTURE_TYPE_I;
+    p->key_frame = 1;
+
+    init_put_bits(&pb, buf, buf_size / 8);
+
+    for (y = 0; y < avctx->height; y++) {
+        uint8_t *luma = &p->data[0][y * p->linesize[0]];
+        uint8_t *cb   = &p->data[1][y * p->linesize[1]];
+        uint8_t *cr   = &p->data[2][y * p->linesize[2]];
+        for (x = 0; x < avctx->width; x += 4) {
+            put_bits(&pb, 5, luma[3] >> 3);
+            put_bits(&pb, 5, luma[2] >> 3);
+            put_bits(&pb, 5, luma[1] >> 3);
+            put_bits(&pb, 5, luma[0] >> 3);
+            luma += 4;
+            put_bits(&pb, 6, *(cb++) >> 2);
+            put_bits(&pb, 6, *(cr++) >> 2);
+        }
+    }
+
+    flush_put_bits(&pb);
+
+    return put_bits_count(&pb) / 8;
+}
+
 AVCodec ff_cljr_encoder = {
     .name           = "cljr",
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_CLJR,
     .priv_data_size = sizeof(CLJRContext),
-    .init           = encode_init,
+    .init           = common_init,
     .encode         = encode_frame,
-    .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
+    .pix_fmts       = (const enum PixelFormat[]) { PIX_FMT_YUV411P,
+                                                   PIX_FMT_NONE },
+    .long_name      = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
 };
 #endif