diff options
| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2006-10-24 05:00:14 +0000 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2006-10-24 05:00:14 +0000 |
| commit | 22eafdf24f65697cc2ae12dfc54fead2318fdacd (patch) | |
| tree | ed33c70db89cc72ab67a37091cabc7c225951469 /libavcodec/pnm.c | |
| parent | ae912c5b622df55a229502e8b2742a0625373f21 (diff) | |
PGM 16-bit gray support
Originally committed as revision 6780 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/pnm.c')
| -rw-r--r-- | libavcodec/pnm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/libavcodec/pnm.c b/libavcodec/pnm.c index b729c4c529..c4c4e2954d 100644 --- a/libavcodec/pnm.c +++ b/libavcodec/pnm.c @@ -70,7 +70,7 @@ static int common_init(AVCodecContext *avctx){ static int pnm_decode_header(AVCodecContext *avctx, PNMContext * const s){ char buf1[32], tuple_type[32]; - int h, w, depth, maxval;; + int h, w, depth, maxval; pnm_get(s, buf1, sizeof(buf1)); if (!strcmp(buf1, "P4")) { @@ -142,8 +142,9 @@ static int pnm_decode_header(AVCodecContext *avctx, PNMContext * const s){ return -1; if (avctx->pix_fmt != PIX_FMT_MONOWHITE) { pnm_get(s, buf1, sizeof(buf1)); + if(atoi(buf1) == 65535 && avctx->pix_fmt == PIX_FMT_GRAY8) + avctx->pix_fmt = PIX_FMT_GRAY16BE; } - /* more check if YUV420 */ if (avctx->pix_fmt == PIX_FMT_YUV420P) { if ((avctx->width & 1) != 0) @@ -194,6 +195,9 @@ static int pnm_decode_frame(AVCodecContext *avctx, case PIX_FMT_GRAY8: n = avctx->width; goto do_read; + case PIX_FMT_GRAY16BE: + n = avctx->width * 2; + goto do_read; case PIX_FMT_MONOWHITE: case PIX_FMT_MONOBLACK: n = (avctx->width + 7) >> 3; @@ -292,6 +296,10 @@ static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf, int bu c = '5'; n = avctx->width; break; + case PIX_FMT_GRAY16BE: + c = '5'; + n = avctx->width * 2; + break; case PIX_FMT_RGB24: c = '6'; n = avctx->width * 3; @@ -310,7 +318,7 @@ static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf, int bu s->bytestream += strlen(s->bytestream); if (avctx->pix_fmt != PIX_FMT_MONOWHITE) { snprintf(s->bytestream, s->bytestream_end - s->bytestream, - "%d\n", 255); + "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE) ? 255 : 65535); s->bytestream += strlen(s->bytestream); } @@ -537,7 +545,7 @@ AVCodec pgm_encoder = { pnm_encode_frame, NULL, //encode_end, pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_GRAY8, -1}, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, -1}, }; #endif // CONFIG_PGM_ENCODER |