ffmpeg: preserve bits_per_coded sample on stream copy.

[ffmpeg] / libavcodec / pamenc.c

diff --git a/libavcodec/pamenc.c b/libavcodec/pamenc.c
index ea0b6f4a3280a1d855e904ea65e9bf927f2810d0..930fdd69123f038123b4233186663cfad2b3d6b5 100644 (file)
--- a/libavcodec/pamenc.c
+++ b/libavcodec/pamenc.c
@@ -28,31 +28,16 @@ static int pam_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                             const AVFrame *pict, int *got_packet)
 {
     PNMContext *s     = avctx->priv_data;
-    AVFrame * const p = (AVFrame*)&s->picture;
+    AVFrame * const p = &s->picture;
     int i, h, w, n, linesize, depth, maxval, ret;
     const char *tuple_type;
     uint8_t *ptr;
 
-    if ((ret = ff_alloc_packet(pkt, avpicture_get_size(avctx->pix_fmt,
-                                                       avctx->width,
-                                                       avctx->height) + 200)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
-        return ret;
-    }
-
-    *p           = *pict;
-    p->pict_type = AV_PICTURE_TYPE_I;
-    p->key_frame = 1;
-
-    s->bytestream_start =
-    s->bytestream       = pkt->data;
-    s->bytestream_end   = pkt->data + pkt->size;
-
     h = avctx->height;
     w = avctx->width;
     switch (avctx->pix_fmt) {
     case PIX_FMT_MONOBLACK:
-        n          = (w + 7) >> 3;
+        n          = w;
         depth      = 1;
         maxval     = 1;
         tuple_type = "BLACKANDWHITE";
@@ -102,6 +87,18 @@ static int pam_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     default:
         return -1;
     }
+
+    if ((ret = ff_alloc_packet2(avctx, pkt, n*h + 200)) < 0)
+        return ret;
+
+    *p           = *pict;
+    p->pict_type = AV_PICTURE_TYPE_I;
+    p->key_frame = 1;
+
+    s->bytestream_start =
+    s->bytestream       = pkt->data;
+    s->bytestream_end   = pkt->data + pkt->size;
+
     snprintf(s->bytestream, s->bytestream_end - s->bytestream,
              "P7\nWIDTH %d\nHEIGHT %d\nDEPTH %d\nMAXVAL %d\nTUPLTYPE %s\nENDHDR\n",
              w, h, depth, maxval, tuple_type);
@@ -139,6 +136,8 @@ AVCodec ff_pam_encoder = {
     .priv_data_size = sizeof(PNMContext),
     .init           = ff_pnm_init,
     .encode2        = pam_encode_frame,
-    .pix_fmts  = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGBA, PIX_FMT_RGB48BE, PIX_FMT_RGBA64BE, PIX_FMT_GRAY8, PIX_FMT_GRAY8A, PIX_FMT_GRAY16BE, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
-    .long_name = NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
+    .pix_fmts       = (const enum PixelFormat[]){
+        PIX_FMT_RGB24, PIX_FMT_RGBA, PIX_FMT_RGB48BE, PIX_FMT_RGBA64BE, PIX_FMT_GRAY8, PIX_FMT_GRAY8A, PIX_FMT_GRAY16BE, PIX_FMT_MONOBLACK, PIX_FMT_NONE
+    },
+    .long_name      = NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
 };