1 files changed, 87 insertions, 19 deletions

diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index 41f81af0e4..0ff2e63b4e 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -8,20 +8,20 @@
  * aspecting, new decode_frame mechanism and apple mjpeg-b support
  *                                  by Alex Beregszaszi
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -30,9 +30,6 @@
  * MJPEG encoder.
  */
 
-//#define DEBUG
-#include <assert.h>
-
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
@@ -48,6 +45,11 @@ av_cold int ff_mjpeg_encode_init(MpegEncContext *s)
 {
     MJpegContext *m;
 
+    if (s->width > 65500 || s->height > 65500) {
+        av_log(s, AV_LOG_ERROR, "JPEG does not support resolutions above 65500x65500\n");
+        return -1;
+    }
+
     m = av_malloc(sizeof(MJpegContext));
     if (!m)
         return -1;
@@ -132,6 +134,12 @@ static void jpeg_table_header(MpegEncContext *s)
     }
 #endif
 
+    if(s->avctx->active_thread_type & FF_THREAD_SLICE){
+        put_marker(p, DRI);
+        put_bits(p, 16, 4);
+        put_bits(p, 16, s->mb_width);
+    }
+
     /* huffman table */
     put_marker(p, DHT);
     flush_put_bits(p);
@@ -156,13 +164,13 @@ static void jpeg_put_comments(MpegEncContext *s)
     int size;
     uint8_t *ptr;
 
-    if (s->aspect_ratio_info /* && !lossless */)
+    if (s->avctx->sample_aspect_ratio.num /* && !lossless */)
     {
     /* JFIF header */
     put_marker(p, APP0);
     put_bits(p, 16, 16);
     ff_put_string(p, "JFIF", 1); /* this puts the trailing zero-byte too */
-    put_bits(p, 16, 0x0201); /* v 1.02 */
+    put_bits(p, 16, 0x0102); /* v 1.02 */
     put_bits(p, 8, 0); /* units type: 0 - aspect ratio */
     put_bits(p, 16, s->avctx->sample_aspect_ratio.num);
     put_bits(p, 16, s->avctx->sample_aspect_ratio.den);
@@ -197,9 +205,13 @@ static void jpeg_put_comments(MpegEncContext *s)
 void ff_mjpeg_encode_picture_header(MpegEncContext *s)
 {
     const int lossless= s->avctx->codec_id != AV_CODEC_ID_MJPEG;
+    int i;
 
     put_marker(&s->pb, SOI);
 
+    // hack for AMV mjpeg format
+    if(s->avctx->codec_id == AV_CODEC_ID_AMV) goto end;
+
     jpeg_put_comments(s);
 
     jpeg_table_header(s);
@@ -207,11 +219,13 @@ void ff_mjpeg_encode_picture_header(MpegEncContext *s)
     switch(s->avctx->codec_id){
     case AV_CODEC_ID_MJPEG:  put_marker(&s->pb, SOF0 ); break;
     case AV_CODEC_ID_LJPEG:  put_marker(&s->pb, SOF3 ); break;
-    default: assert(0);
+    default: av_assert0(0);
     }
 
     put_bits(&s->pb, 16, 17);
-    if(lossless && s->avctx->pix_fmt == PIX_FMT_BGRA)
+    if(lossless && (s->avctx->pix_fmt == PIX_FMT_BGR0
+                    || s->avctx->pix_fmt == PIX_FMT_BGRA
+                    || s->avctx->pix_fmt == PIX_FMT_BGR24))
         put_bits(&s->pb, 8, 9); /* 9 bits/component RCT */
     else
         put_bits(&s->pb, 8, 8); /* 8 bits/component */
@@ -270,10 +284,15 @@ void ff_mjpeg_encode_picture_header(MpegEncContext *s)
     switch(s->avctx->codec_id){
     case AV_CODEC_ID_MJPEG:  put_bits(&s->pb, 8, 63); break; /* Se (not used) */
     case AV_CODEC_ID_LJPEG:  put_bits(&s->pb, 8,  0); break; /* not used */
-    default: assert(0);
+    default: av_assert0(0);
     }
 
     put_bits(&s->pb, 8, 0); /* Ah/Al (not used) */
+
+end:
+    s->esc_pos = put_bits_count(&s->pb) >> 3;
+    for(i=1; i<s->slice_context_count; i++)
+        s->thread_context[i]->esc_pos = 0;
 }
 
 static void escape_FF(MpegEncContext *s, int start)
@@ -283,7 +302,7 @@ static void escape_FF(MpegEncContext *s, int start)
     uint8_t *buf= s->pb.buf + start;
     int align= (-(size_t)(buf))&3;
 
-    assert((size&7) == 0);
+    av_assert1((size&7) == 0);
     size >>= 3;
 
     ff_count=0;
@@ -329,21 +348,30 @@ static void escape_FF(MpegEncContext *s, int start)
     }
 }
 
-void ff_mjpeg_encode_stuffing(PutBitContext * pbc)
+void ff_mjpeg_encode_stuffing(MpegEncContext *s)
 {
-    int length;
+    int length, i;
+    PutBitContext *pbc = &s->pb;
+    int mb_y = s->mb_y - !s->mb_x;
     length= (-put_bits_count(pbc))&7;
     if(length) put_bits(pbc, length, (1<<length)-1);
+
+    flush_put_bits(&s->pb);
+    escape_FF(s, s->esc_pos);
+
+    if((s->avctx->active_thread_type & FF_THREAD_SLICE) && mb_y < s->mb_height)
+        put_marker(pbc, RST0 + (mb_y&7));
+    s->esc_pos = put_bits_count(pbc) >> 3;
+
+    for(i=0; i<3; i++)
+        s->last_dc[i] = 128 << s->intra_dc_precision;
 }
 
 void ff_mjpeg_encode_picture_trailer(MpegEncContext *s)
 {
-    ff_mjpeg_encode_stuffing(&s->pb);
-    flush_put_bits(&s->pb);
 
-    assert((s->header_bits&7)==0);
+    av_assert1((s->header_bits&7)==0);
 
-    escape_FF(s, s->header_bits>>3);
 
     put_marker(&s->pb, EOI);
 }
@@ -445,6 +473,29 @@ void ff_mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64])
     s->i_tex_bits += get_bits_diff(s);
 }
 
+// maximum over s->mjpeg_vsample[i]
+#define V_MAX 2
+static int amv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
+                              const AVFrame *pic_arg, int *got_packet)
+
+{
+    MpegEncContext *s = avctx->priv_data;
+    AVFrame pic = *pic_arg;
+    int i;
+
+    //CODEC_FLAG_EMU_EDGE have to be cleared
+    if(s->avctx->flags & CODEC_FLAG_EMU_EDGE)
+        return -1;
+
+    //picture should be flipped upside-down
+    for(i=0; i < 3; i++) {
+        pic.data[i] += (pic.linesize[i] * (s->mjpeg_vsample[i] * (8 * s->mb_height -((s->height/V_MAX)&7)) - 1 ));
+        pic.linesize[i] *= -1;
+    }
+    return ff_MPV_encode_picture(avctx, pkt, &pic, got_packet);
+}
+
+#if CONFIG_MJPEG_ENCODER
 AVCodec ff_mjpeg_encoder = {
     .name           = "mjpeg",
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -453,8 +504,25 @@ AVCodec ff_mjpeg_encoder = {
     .init           = ff_MPV_encode_init,
     .encode2        = ff_MPV_encode_picture,
     .close          = ff_MPV_encode_end,
+    .capabilities   = CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS | CODEC_CAP_INTRA_ONLY,
     .pix_fmts       = (const enum PixelFormat[]){
         PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_NONE
     },
     .long_name      = NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
 };
+#endif
+#if CONFIG_AMV_ENCODER
+AVCodec ff_amv_encoder = {
+    .name           = "amv",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_AMV,
+    .priv_data_size = sizeof(MpegEncContext),
+    .init           = ff_MPV_encode_init,
+    .encode2        = amv_encode_picture,
+    .close          = ff_MPV_encode_end,
+    .pix_fmts       = (const enum PixelFormat[]){
+        PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_NONE
+    },
+    .long_name      = NULL_IF_CONFIG_SMALL("AMV Video"),
+};
+#endif