avfilter/vf_psnr: remove unnecessary check

[ffmpeg] / libavcodec / pnmdec.c

diff --git a/libavcodec/pnmdec.c b/libavcodec/pnmdec.c
index 958c5e43b07c05a23f7146937070797dafe9a8fa..01f9dade1a736075d0d1a41811c9780d5ee2d99d 100644 (file)
--- a/libavcodec/pnmdec.c
+++ b/libavcodec/pnmdec.c
@@ -46,6 +46,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
     int i, j, k, n, linesize, h, upgrade = 0, is_mono = 0;
     unsigned char *ptr;
     int components, sample_len, ret;
+    float scale;
 
     s->bytestream_start =
     s->bytestream       = (uint8_t *)buf;
@@ -132,7 +133,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
                 init_put_bits(&pb, ptr, linesize);
                 for(j=0; j<avctx->width * components; j++){
                     unsigned int c=0;
-                    int v=0;
+                    unsigned v=0;
                     if(s->type < 4)
                     while(s->bytestream < s->bytestream_end && (*s->bytestream < '0' || *s->bytestream > '9' ))
                         s->bytestream++;
@@ -143,7 +144,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
                         v = (*s->bytestream++)&1;
                     } else {
                         /* read a sequence of digits */
-                        for (k = 0; k < 5 && c <= 9; k += 1) {
+                        for (k = 0; k < 6 && c <= 9; k += 1) {
                             v = 10*v + c;
                             c = (*s->bytestream++) - '0';
                         }
@@ -172,7 +173,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
             } else if (upgrade == 2) {
                 unsigned int j, v, f = (65535 * 32768 + s->maxval / 2) / s->maxval;
                 for (j = 0; j < n / 2; j++) {
-                    v = av_be2ne16(((uint16_t *)s->bytestream)[j]);
+                    v = AV_RB16(s->bytestream + 2*j);
                     ((uint16_t *)ptr)[j] = (v * f + 16384) >> 15;
                 }
             }
@@ -226,7 +227,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
                 return AVERROR_INVALIDDATA;
             for (i = 0; i < avctx->height; i++) {
                 for (j = 0; j < n / 2; j++) {
-                    v = av_be2ne16(((uint16_t *)s->bytestream)[j]);
+                    v = AV_RB16(s->bytestream + 2*j);
                     ((uint16_t *)ptr)[j] = (v * f + 16384) >> 15;
                 }
                 s->bytestream += n;
@@ -238,13 +239,13 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
             h = avctx->height >> 1;
             for (i = 0; i < h; i++) {
                 for (j = 0; j < n / 2; j++) {
-                    v = av_be2ne16(((uint16_t *)s->bytestream)[j]);
+                    v = AV_RB16(s->bytestream + 2*j);
                     ptr1[j] = (v * f + 16384) >> 15;
                 }
                 s->bytestream += n;
 
                 for (j = 0; j < n / 2; j++) {
-                    v = av_be2ne16(((uint16_t *)s->bytestream)[j]);
+                    v = AV_RB16(s->bytestream + 2*j);
                     ptr2[j] = (v * f + 16384) >> 15;
                 }
                 s->bytestream += n;
@@ -254,6 +255,72 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
             }
         }
         break;
+    case AV_PIX_FMT_GBRPF32:
+        if (avctx->width * avctx->height * 12 > s->bytestream_end - s->bytestream)
+            return AVERROR_INVALIDDATA;
+        scale = 1.f / s->scale;
+        if (s->endian) {
+            float *r, *g, *b;
+
+            r = (float *)p->data[2];
+            g = (float *)p->data[0];
+            b = (float *)p->data[1];
+            for (int i = 0; i < avctx->height; i++) {
+                for (int j = 0; j < avctx->width; j++) {
+                    r[j] = av_int2float(AV_RL32(s->bytestream+0)) * scale;
+                    g[j] = av_int2float(AV_RL32(s->bytestream+4)) * scale;
+                    b[j] = av_int2float(AV_RL32(s->bytestream+8)) * scale;
+                    s->bytestream += 12;
+                }
+
+                r += p->linesize[2] / 4;
+                g += p->linesize[0] / 4;
+                b += p->linesize[1] / 4;
+            }
+        } else {
+            float *r, *g, *b;
+
+            r = (float *)p->data[2];
+            g = (float *)p->data[0];
+            b = (float *)p->data[1];
+            for (int i = 0; i < avctx->height; i++) {
+                for (int j = 0; j < avctx->width; j++) {
+                    r[j] = av_int2float(AV_RB32(s->bytestream+0)) * scale;
+                    g[j] = av_int2float(AV_RB32(s->bytestream+4)) * scale;
+                    b[j] = av_int2float(AV_RB32(s->bytestream+8)) * scale;
+                    s->bytestream += 12;
+                }
+
+                r += p->linesize[2] / 4;
+                g += p->linesize[0] / 4;
+                b += p->linesize[1] / 4;
+            }
+        }
+        break;
+    case AV_PIX_FMT_GRAYF32:
+        if (avctx->width * avctx->height * 4 > s->bytestream_end - s->bytestream)
+            return AVERROR_INVALIDDATA;
+        scale = 1.f / s->scale;
+        if (s->endian) {
+            float *g = (float *)p->data[0];
+            for (int i = 0; i < avctx->height; i++) {
+                for (int j = 0; j < avctx->width; j++) {
+                    g[j] = av_int2float(AV_RL32(s->bytestream)) * scale;
+                    s->bytestream += 4;
+                }
+                g += p->linesize[0] / 4;
+            }
+        } else {
+            float *g = (float *)p->data[0];
+            for (int i = 0; i < avctx->height; i++) {
+                for (int j = 0; j < avctx->width; j++) {
+                    g[j] = av_int2float(AV_RB32(s->bytestream)) * scale;
+                    s->bytestream += 4;
+                }
+                g += p->linesize[0] / 4;
+            }
+        }
+        break;
     }
     *got_frame = 1;
 
@@ -262,7 +329,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
 
 
 #if CONFIG_PGM_DECODER
-AVCodec ff_pgm_decoder = {
+const AVCodec ff_pgm_decoder = {
     .name           = "pgm",
     .long_name      = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -274,7 +341,7 @@ AVCodec ff_pgm_decoder = {
 #endif
 
 #if CONFIG_PGMYUV_DECODER
-AVCodec ff_pgmyuv_decoder = {
+const AVCodec ff_pgmyuv_decoder = {
     .name           = "pgmyuv",
     .long_name      = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -286,7 +353,7 @@ AVCodec ff_pgmyuv_decoder = {
 #endif
 
 #if CONFIG_PPM_DECODER
-AVCodec ff_ppm_decoder = {
+const AVCodec ff_ppm_decoder = {
     .name           = "ppm",
     .long_name      = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -298,7 +365,7 @@ AVCodec ff_ppm_decoder = {
 #endif
 
 #if CONFIG_PBM_DECODER
-AVCodec ff_pbm_decoder = {
+const AVCodec ff_pbm_decoder = {
     .name           = "pbm",
     .long_name      = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -310,7 +377,7 @@ AVCodec ff_pbm_decoder = {
 #endif
 
 #if CONFIG_PAM_DECODER
-AVCodec ff_pam_decoder = {
+const AVCodec ff_pam_decoder = {
     .name           = "pam",
     .long_name      = NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -320,3 +387,15 @@ AVCodec ff_pam_decoder = {
     .capabilities   = AV_CODEC_CAP_DR1,
 };
 #endif
+
+#if CONFIG_PFM_DECODER
+const AVCodec ff_pfm_decoder = {
+    .name           = "pfm",
+    .long_name      = NULL_IF_CONFIG_SMALL("PFM (Portable FloatMap) image"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_PFM,
+    .priv_data_size = sizeof(PNMContext),
+    .decode         = pnm_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+};
+#endif