ra288dec: set channel layout

[ffmpeg] / libavcodec / ljpegenc.c

diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c
index 2ef07c3a324c82de2e53409b416c4c81ebb71b16..78ba2c962e581fe1e2970d07b57364b04859bc5d 100644 (file)
--- a/libavcodec/ljpegenc.c
+++ b/libavcodec/ljpegenc.c
@@ -8,20 +8,20 @@
  * aspecting, new decode_frame mechanism and apple mjpeg-b support
  *                                  by Alex Beregszaszi
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -32,31 +32,47 @@
 
 #include "avcodec.h"
 #include "dsputil.h"
+#include "internal.h"
 #include "mpegvideo.h"
 #include "mjpeg.h"
 #include "mjpegenc.h"
 
 
-static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_picture_lossless(AVCodecContext *avctx, AVPacket *pkt,
+                                   const AVFrame *pict, int *got_packet)
+{
     MpegEncContext * const s = avctx->priv_data;
     MJpegContext * const m = s->mjpeg_ctx;
-    AVFrame *pict = data;
     const int width= s->width;
     const int height= s->height;
-    AVFrame * const p= (AVFrame*)&s->current_picture;
+    AVFrame * const p = &s->current_picture.f;
     const int predictor= avctx->prediction_method+1;
+    const int mb_width  = (width  + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0];
+    const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0];
+    int ret, max_pkt_size = FF_MIN_BUFFER_SIZE;
+
+    if (avctx->pix_fmt == AV_PIX_FMT_BGRA)
+        max_pkt_size += width * height * 3 * 4;
+    else {
+        max_pkt_size += mb_width * mb_height * 3 * 4
+                        * s->mjpeg_hsample[0] * s->mjpeg_vsample[0];
+    }
+    if ((ret = ff_alloc_packet(pkt, max_pkt_size)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", max_pkt_size);
+        return ret;
+    }
 
-    init_put_bits(&s->pb, buf, buf_size);
+    init_put_bits(&s->pb, pkt->data, pkt->size);
 
     *p = *pict;
-    p->pict_type= FF_I_TYPE;
+    p->pict_type= AV_PICTURE_TYPE_I;
     p->key_frame= 1;
 
     ff_mjpeg_encode_picture_header(s);
 
     s->header_bits= put_bits_count(&s->pb);
 
-    if(avctx->pix_fmt == PIX_FMT_BGRA){
+    if(avctx->pix_fmt == AV_PIX_FMT_BGRA){
         int x, y, i;
         const int linesize= p->linesize[0];
         uint16_t (*buffer)[4]= (void *) s->rd_scratchpad;
@@ -104,8 +120,6 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
         }
     }else{
         int mb_x, mb_y, i;
-        const int mb_width  = (width  + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0];
-        const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0];
 
         for(mb_y = 0; mb_y < mb_height; mb_y++) {
             if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < mb_width * 4 * 3 * s->mjpeg_hsample[0] * s->mjpeg_vsample[0]){
@@ -160,7 +174,6 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
                                 int pred;
 
                                 ptr = p->data[i] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap
-//printf("%d %d %d %d %8X\n", mb_x, mb_y, x, y, ptr);
                                 PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
 
                                 if(i==0)
@@ -181,18 +194,22 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
     s->picture_number++;
 
     flush_put_bits(&s->pb);
-    return put_bits_ptr(&s->pb) - s->pb.buf;
+    pkt->size   = put_bits_ptr(&s->pb) - s->pb.buf;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 //    return (put_bits_count(&f->pb)+7)/8;
 }
 
 
-AVCodec ljpeg_encoder = { //FIXME avoid MPV_* lossless JPEG should not need them
-    "ljpeg",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_LJPEG,
-    sizeof(MpegEncContext),
-    MPV_encode_init,
-    encode_picture_lossless,
-    MPV_encode_end,
-    .long_name = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
+AVCodec ff_ljpeg_encoder = { //FIXME avoid MPV_* lossless JPEG should not need them
+    .name           = "ljpeg",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_LJPEG,
+    .priv_data_size = sizeof(MpegEncContext),
+    .init           = ff_MPV_encode_init,
+    .encode2        = encode_picture_lossless,
+    .close          = ff_MPV_encode_end,
+    .long_name      = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
 };