adxenc: remove unneeded log message

[ffmpeg] / libavcodec / mpegvideo_parser.c

diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c
index 215c86c4001b1e23269f6fbf04a4e7fbe78ae4d0..1798f8386f5c8dffeb78e0be67b669aa2268407c 100644 (file)
--- a/libavcodec/mpegvideo_parser.c
+++ b/libavcodec/mpegvideo_parser.c
@@ -3,20 +3,20 @@
  * Copyright (c) 2000,2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
- * 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
  */
 
@@ -28,18 +28,19 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
                                       const uint8_t *buf, int buf_size)
 {
     ParseContext1 *pc = s->priv_data;
-    const uint8_t *buf_end;
+    const uint8_t *buf_end = buf + buf_size;
     uint32_t start_code;
     int frame_rate_index, ext_type, bytes_left;
     int frame_rate_ext_n, frame_rate_ext_d;
-    int picture_structure, top_field_first, repeat_first_field, progressive_frame;
+    int top_field_first, repeat_first_field, progressive_frame;
     int horiz_size_ext, vert_size_ext, bit_rate_ext;
+    int did_set_size=0;
 //FIXME replace the crap with get_bits()
     s->repeat_pict = 0;
-    buf_end = buf + buf_size;
+
     while (buf < buf_end) {
         start_code= -1;
-        buf= ff_find_start_code(buf, buf_end, &start_code);
+        buf= avpriv_mpv_find_start_code(buf, buf_end, &start_code);
         bytes_left = buf_end - buf;
         switch(start_code) {
         case PICTURE_START_CODE:
@@ -51,10 +52,13 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
             if (bytes_left >= 7) {
                 pc->width  = (buf[0] << 4) | (buf[1] >> 4);
                 pc->height = ((buf[1] & 0x0f) << 8) | buf[2];
-                avcodec_set_dimensions(avctx, pc->width, pc->height);
+                if(!avctx->width || !avctx->height || !avctx->coded_width || !avctx->coded_height){
+                    avcodec_set_dimensions(avctx, pc->width, pc->height);
+                    did_set_size=1;
+                }
                 frame_rate_index = buf[3] & 0xf;
-                pc->frame_rate.den = avctx->time_base.den = ff_frame_rate_tab[frame_rate_index].num;
-                pc->frame_rate.num = avctx->time_base.num = ff_frame_rate_tab[frame_rate_index].den;
+                pc->frame_rate.den = avctx->time_base.den = avpriv_frame_rate_tab[frame_rate_index].num;
+                pc->frame_rate.num = avctx->time_base.num = avpriv_frame_rate_tab[frame_rate_index].den;
                 avctx->bit_rate = ((buf[4]<<10) | (buf[5]<<2) | (buf[6]>>6))*400;
                 avctx->codec_id = CODEC_ID_MPEG1VIDEO;
                 avctx->sub_id = 1;
@@ -77,7 +81,8 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
                         pc->width  |=(horiz_size_ext << 12);
                         pc->height |=( vert_size_ext << 12);
                         avctx->bit_rate += (bit_rate_ext << 18) * 400;
-                        avcodec_set_dimensions(avctx, pc->width, pc->height);
+                        if(did_set_size)
+                            avcodec_set_dimensions(avctx, pc->width, pc->height);
                         avctx->time_base.den = pc->frame_rate.den * (frame_rate_ext_n + 1) * 2;
                         avctx->time_base.num = pc->frame_rate.num * (frame_rate_ext_d + 1);
                         avctx->codec_id = CODEC_ID_MPEG2VIDEO;
@@ -86,7 +91,6 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
                     break;
                 case 0x8: /* picture coding extension */
                     if (bytes_left >= 5) {
-                        picture_structure = buf[2]&3;
                         top_field_first = buf[3] & (1 << 7);
                         repeat_first_field = buf[3] & (1 << 1);
                         progressive_frame = buf[4] & (1 << 7);
@@ -147,10 +151,8 @@ static int mpegvideo_parse(AVCodecParserContext *s,
        to have the full timing information. The time take by this
        function should be negligible for uncorrupted streams */
     mpegvideo_extract_headers(s, avctx, buf, buf_size);
-#if 0
-    printf("pict_type=%d frame_rate=%0.3f repeat_pict=%d\n",
-           s->pict_type, (double)avctx->time_base.den / avctx->time_base.num, s->repeat_pict);
-#endif
+    av_dlog(NULL, "pict_type=%d frame_rate=%0.3f repeat_pict=%d\n",
+            s->pict_type, (double)avctx->time_base.den / avctx->time_base.num, s->repeat_pict);
 
     *poutbuf = buf;
     *poutbuf_size = buf_size;
@@ -171,10 +173,10 @@ static int mpegvideo_split(AVCodecContext *avctx,
     return 0;
 }
 
-AVCodecParser mpegvideo_parser = {
-    { CODEC_ID_MPEG1VIDEO, CODEC_ID_MPEG2VIDEO },
-    sizeof(ParseContext1),
-    NULL,
-    mpegvideo_parse,
-    ff_parse1_close,
+AVCodecParser ff_mpegvideo_parser = {
+    .codec_ids      = { CODEC_ID_MPEG1VIDEO, CODEC_ID_MPEG2VIDEO },
+    .priv_data_size = sizeof(ParseContext1),
+    .parser_parse   = mpegvideo_parse,
+    .parser_close   = ff_parse1_close,
+    .split          = mpegvideo_split,
 };