move mjpega_dump_header bitstream filter in its own file

Originally committed as revision 9068 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 0 insertions, 64 deletions

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 274dae7946..dc0b4eba29 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -35,7 +35,6 @@
 
 #include "avcodec.h"
 #include "dsputil.h"
-#include "bytestream.h"
 #include "mjpeg.h"
 #include "jpeglsdec.h"
 
@@ -1588,61 +1587,6 @@ static int mjpeg_decode_end(AVCodecContext *avctx)
     return 0;
 }
 
-static int mjpega_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
-                              uint8_t **poutbuf, int *poutbuf_size,
-                              const uint8_t *buf, int buf_size, int keyframe)
-{
-    uint8_t *poutbufp;
-    int i;
-
-    if (avctx->codec_id != CODEC_ID_MJPEG) {
-        av_log(avctx, AV_LOG_ERROR, "mjpega bitstream filter only applies to mjpeg codec\n");
-        return 0;
-    }
-
-    *poutbuf_size = 0;
-    *poutbuf = av_malloc(buf_size + 44 + FF_INPUT_BUFFER_PADDING_SIZE);
-    poutbufp = *poutbuf;
-    bytestream_put_byte(&poutbufp, 0xff);
-    bytestream_put_byte(&poutbufp, SOI);
-    bytestream_put_byte(&poutbufp, 0xff);
-    bytestream_put_byte(&poutbufp, APP1);
-    bytestream_put_be16(&poutbufp, 42); /* size */
-    bytestream_put_be32(&poutbufp, 0);
-    bytestream_put_buffer(&poutbufp, "mjpg", 4);
-    bytestream_put_be32(&poutbufp, buf_size + 44); /* field size */
-    bytestream_put_be32(&poutbufp, buf_size + 44); /* pad field size */
-    bytestream_put_be32(&poutbufp, 0);             /* next ptr */
-
-    for (i = 0; i < buf_size - 1; i++) {
-        if (buf[i] == 0xff) {
-            switch (buf[i + 1]) {
-            case DQT:  /* quant off */
-            case DHT:  /* huff  off */
-            case SOF0: /* image off */
-                bytestream_put_be32(&poutbufp, i + 46);
-                break;
-            case SOS:
-                bytestream_put_be32(&poutbufp, i + 46); /* scan off */
-                bytestream_put_be32(&poutbufp, i + 46 + AV_RB16(buf + i + 2)); /* data off */
-                bytestream_put_buffer(&poutbufp, buf + 2, buf_size - 2); /* skip already written SOI */
-                *poutbuf_size = poutbufp - *poutbuf;
-                return 1;
-            case APP1:
-                if (i + 8 < buf_size && AV_RL32(buf + i + 8) == ff_get_fourcc("mjpg")) {
-                    av_log(avctx, AV_LOG_ERROR, "bitstream already formatted\n");
-                    memcpy(*poutbuf, buf, buf_size);
-                    *poutbuf_size = buf_size;
-                    return 1;
-                }
-            }
-        }
-    }
-    av_freep(poutbuf);
-    av_log(avctx, AV_LOG_ERROR, "could not find SOS marker in bitstream\n");
-    return 0;
-}
-
 AVCodec mjpeg_decoder = {
     "mjpeg",
     CODEC_TYPE_VIDEO,
@@ -1694,11 +1638,3 @@ AVCodec sp5x_decoder = {
     CODEC_CAP_DR1,
     NULL
 };
-
-#ifdef CONFIG_MJPEGA_DUMP_HEADER_BSF
-AVBitStreamFilter mjpega_dump_header_bsf = {
-    "mjpegadump",
-    0,
-    mjpega_dump_header,
-};
-#endif