Split parts of dvdata.h into dvdata.c, this ensures that things like

work_chunks_* and dv_idct_factor_* variables appear only once in the binary
instead of 3 times.
Saves 3264 bytes in .rodata and 312416 bytes in .bss on x86_64.

Originally committed as revision 20246 to svn://svn.ffmpeg.org/ffmpeg/trunk

6 files changed, 298 insertions, 263 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index b00da207b7..789ece0be0 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -75,8 +75,8 @@ OBJS-$(CONFIG_DVBSUB_DECODER)          += dvbsubdec.o
 OBJS-$(CONFIG_DVBSUB_ENCODER)          += dvbsub.o
 OBJS-$(CONFIG_DVDSUB_DECODER)          += dvdsubdec.o
 OBJS-$(CONFIG_DVDSUB_ENCODER)          += dvdsubenc.o
-OBJS-$(CONFIG_DVVIDEO_DECODER)         += dv.o
-OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dv.o
+OBJS-$(CONFIG_DVVIDEO_DECODER)         += dv.o dvdata.o
+OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dv.o dvdata.o
 OBJS-$(CONFIG_DXA_DECODER)             += dxa.o
 OBJS-$(CONFIG_EAC3_DECODER)            += eac3dec.o eac3dec_data.o
 OBJS-$(CONFIG_EACMV_DECODER)           += eacmv.o
@@ -362,6 +362,8 @@ OBJS-$(CONFIG_ADPCM_YAMAHA_ENCODER)       += adpcm.o
 
 # libavformat dependencies
 OBJS-$(CONFIG_ADTS_MUXER)              += mpeg4audio.o
+OBJS-$(CONFIG_DV_DEMUXER)              += dvdata.o
+OBJS-$(CONFIG_DV_MUXER)                += dvdata.o
 OBJS-$(CONFIG_EAC3_DEMUXER)            += ac3_parser.o ac3tab.o aac_ac3_parser.o
 OBJS-$(CONFIG_FLAC_DEMUXER)            += flacdec.o flacdata.o flac.o
 OBJS-$(CONFIG_FLAC_MUXER)              += flacdec.o flacdata.o flac.o
diff --git a/libavcodec/dv.c b/libavcodec/dv.c
index 9b56977345..8fcfb7db56 100644
--- a/libavcodec/dv.c
+++ b/libavcodec/dv.c
@@ -1128,7 +1128,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     int buf_size = avpkt->size;
     DVVideoContext *s = avctx->priv_data;
 
-    s->sys = dv_frame_profile(s->sys, buf, buf_size);
+    s->sys = ff_dv_frame_profile(s->sys, buf, buf_size);
     if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys)) {
         av_log(avctx, AV_LOG_ERROR, "could not find dv frame profile\n");
         return -1; /* NOTE: we only accept several full frames */
@@ -1293,7 +1293,7 @@ static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size,
 {
     DVVideoContext *s = c->priv_data;
 
-    s->sys = dv_codec_profile(c);
+    s->sys = ff_dv_codec_profile(c);
     if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys))
         return -1;
 
diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c
new file mode 100644
index 0000000000..511087207a
--- /dev/null
+++ b/libavcodec/dvdata.c
@@ -0,0 +1,285 @@
+/*
+ * Constants for DV codec
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * 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.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file libavcodec/dvdata.c
+ * Constants for DV codec.
+ */
+
+#include "libavutil/rational.h"
+#include "avcodec.h"
+#include "dvdata.h"
+
+static DVwork_chunk work_chunks_dv25pal   [1*12*27];
+static DVwork_chunk work_chunks_dv25pal411[1*12*27];
+static DVwork_chunk work_chunks_dv25ntsc  [1*10*27];
+static DVwork_chunk work_chunks_dv50pal   [2*12*27];
+static DVwork_chunk work_chunks_dv50ntsc  [2*10*27];
+static DVwork_chunk work_chunks_dv100palp [2*12*27];
+static DVwork_chunk work_chunks_dv100ntscp[2*10*27];
+static DVwork_chunk work_chunks_dv100pali [4*12*27];
+static DVwork_chunk work_chunks_dv100ntsci[4*10*27];
+
+static uint32_t dv_idct_factor_sd    [2*2*22*64];
+static uint32_t dv_idct_factor_hd1080[2*4*16*64];
+static uint32_t dv_idct_factor_hd720 [2*4*16*64];
+
+static const DVprofile dv_profiles[] = {
+    { .dsf = 0,
+      .video_stype = 0x0,
+      .frame_size = 120000,        /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
+      .difseg_size = 10,
+      .n_difchan = 1,
+      .time_base = { 1001, 30000 },
+      .ltc_divisor = 30,
+      .height = 480,
+      .width = 720,
+      .sar = {{10, 11}, {40, 33}},
+      .work_chunks = &work_chunks_dv25ntsc[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV411P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
+      .audio_shuffle = dv_audio_shuffle525,
+    },
+    { .dsf = 1,
+      .video_stype = 0x0,
+      .frame_size = 144000,        /* IEC 61834 - 625/50 (PAL) */
+      .difseg_size = 12,
+      .n_difchan = 1,
+      .time_base = { 1, 25 },
+      .ltc_divisor = 25,
+      .height = 576,
+      .width = 720,
+      .sar = {{59, 54}, {118, 81}},
+      .work_chunks = &work_chunks_dv25pal[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV420P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    },
+    { .dsf = 1,
+      .video_stype = 0x0,
+      .frame_size = 144000,        /* SMPTE-314M - 625/50 (PAL) */
+      .difseg_size = 12,
+      .n_difchan = 1,
+      .time_base = { 1, 25 },
+      .ltc_divisor = 25,
+      .height = 576,
+      .width = 720,
+      .sar = {{59, 54}, {118, 81}},
+      .work_chunks = &work_chunks_dv25pal411[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV411P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    },
+    { .dsf = 0,
+      .video_stype = 0x4,
+      .frame_size = 240000,        /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
+      .difseg_size = 10,           /* also known as "DVCPRO50" */
+      .n_difchan = 2,
+      .time_base = { 1001, 30000 },
+      .ltc_divisor = 30,
+      .height = 480,
+      .width = 720,
+      .sar = {{10, 11}, {40, 33}},
+      .work_chunks = &work_chunks_dv50ntsc[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
+      .audio_shuffle = dv_audio_shuffle525,
+    },
+    { .dsf = 1,
+      .video_stype = 0x4,
+      .frame_size = 288000,        /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
+      .difseg_size = 12,           /* also known as "DVCPRO50" */
+      .n_difchan = 2,
+      .time_base = { 1, 25 },
+      .ltc_divisor = 25,
+      .height = 576,
+      .width = 720,
+      .sar = {{59, 54}, {118, 81}},
+      .work_chunks = &work_chunks_dv50pal[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    },
+    { .dsf = 0,
+      .video_stype = 0x14,
+      .frame_size = 480000,        /* SMPTE-370M - 1080i60 100 Mbps */
+      .difseg_size = 10,           /* also known as "DVCPRO HD" */
+      .n_difchan = 4,
+      .time_base = { 1001, 30000 },
+      .ltc_divisor = 30,
+      .height = 1080,
+      .width = 1280,
+      .sar = {{1, 1}, {1, 1}},
+      .work_chunks = &work_chunks_dv100ntsci[0],
+      .idct_factor = &dv_idct_factor_hd1080[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 8,
+      .block_sizes = block_sizes_dv100,
+      .audio_stride = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
+      .audio_shuffle = dv_audio_shuffle525,
+    },
+    { .dsf = 1,
+      .video_stype = 0x14,
+      .frame_size = 576000,        /* SMPTE-370M - 1080i50 100 Mbps */
+      .difseg_size = 12,           /* also known as "DVCPRO HD" */
+      .n_difchan = 4,
+      .time_base = { 1, 25 },
+      .ltc_divisor = 25,
+      .height = 1080,
+      .width = 1440,
+      .sar = {{1, 1}, {1, 1}},
+      .work_chunks = &work_chunks_dv100pali[0],
+      .idct_factor = &dv_idct_factor_hd1080[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 8,
+      .block_sizes = block_sizes_dv100,
+      .audio_stride = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    },
+    { .dsf = 0,
+      .video_stype = 0x18,
+      .frame_size = 240000,        /* SMPTE-370M - 720p60 100 Mbps */
+      .difseg_size = 10,           /* also known as "DVCPRO HD" */
+      .n_difchan = 2,
+      .time_base = { 1001, 60000 },
+      .ltc_divisor = 60,
+      .height = 720,
+      .width = 960,
+      .sar = {{1, 1}, {1, 1}},
+      .work_chunks = &work_chunks_dv100ntscp[0],
+      .idct_factor = &dv_idct_factor_hd720[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 8,
+      .block_sizes = block_sizes_dv100,
+      .audio_stride = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
+      .audio_shuffle = dv_audio_shuffle525,
+    },
+    { .dsf = 1,
+      .video_stype = 0x18,
+      .frame_size = 288000,        /* SMPTE-370M - 720p50 100 Mbps */
+      .difseg_size = 12,           /* also known as "DVCPRO HD" */
+      .n_difchan = 2,
+      .time_base = { 1, 50 },
+      .ltc_divisor = 50,
+      .height = 720,
+      .width = 960,
+      .sar = {{1, 1}, {1, 1}},
+      .work_chunks = &work_chunks_dv100palp[0],
+      .idct_factor = &dv_idct_factor_hd720[0],
+      .pix_fmt = PIX_FMT_YUV422P,
+      .bpm = 8,
+      .block_sizes = block_sizes_dv100,
+      .audio_stride = 90,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    },
+    { .dsf = 1,
+      .video_stype = 0x1,
+      .frame_size = 144000,        /* IEC 61883-5 - 625/50 (PAL) */
+      .difseg_size = 12,
+      .n_difchan = 1,
+      .time_base = { 1, 25 },
+      .ltc_divisor = 25,
+      .height = 576,
+      .width = 720,
+      .sar = {{59, 54}, {118, 81}},
+      .work_chunks = &work_chunks_dv25pal[0],
+      .idct_factor = &dv_idct_factor_sd[0],
+      .pix_fmt = PIX_FMT_YUV420P,
+      .bpm = 6,
+      .block_sizes = block_sizes_dv2550,
+      .audio_stride = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle = dv_audio_shuffle625,
+    }
+};
+
+const DVprofile* ff_dv_frame_profile(const DVprofile *sys,
+                                  const uint8_t* frame, unsigned buf_size)
+{
+   int i;
+
+   int dsf = (frame[3] & 0x80) >> 7;
+
+   int stype = frame[80*5 + 48 + 3] & 0x1f;
+
+   /* 576i50 25Mbps 4:1:1 is a special case */
+   if (dsf == 1 && stype == 0 && frame[5] & 0x07) {
+       return &dv_profiles[2];
+   }
+
+   for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
+       if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
+           return &dv_profiles[i];
+
+   /* check if old sys matches and assumes corrupted input */
+   if (sys && buf_size == sys->frame_size)
+       return sys;
+
+   return NULL;
+}
+
+const DVprofile* ff_dv_codec_profile(AVCodecContext* codec)
+{
+    int i;
+
+    for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
+       if (codec->height  == dv_profiles[i].height  &&
+           codec->pix_fmt == dv_profiles[i].pix_fmt &&
+           codec->width   == dv_profiles[i].width)
+               return &dv_profiles[i];
+
+    return NULL;
+}
+
diff --git a/libavcodec/dvdata.h b/libavcodec/dvdata.h
index 9202ed2c7f..f0103590ef 100644
--- a/libavcodec/dvdata.h
+++ b/libavcodec/dvdata.h
@@ -460,223 +460,6 @@ static const uint8_t block_sizes_dv100[8] = {
     80, 80, 80, 80, 80, 80, 64, 64,
 };
 
-static DVwork_chunk work_chunks_dv25pal   [1*12*27];
-static DVwork_chunk work_chunks_dv25pal411[1*12*27];
-static DVwork_chunk work_chunks_dv25ntsc  [1*10*27];
-static DVwork_chunk work_chunks_dv50pal   [2*12*27];
-static DVwork_chunk work_chunks_dv50ntsc  [2*10*27];
-static DVwork_chunk work_chunks_dv100palp [2*12*27];
-static DVwork_chunk work_chunks_dv100ntscp[2*10*27];
-static DVwork_chunk work_chunks_dv100pali [4*12*27];
-static DVwork_chunk work_chunks_dv100ntsci[4*10*27];
-
-static uint32_t dv_idct_factor_sd    [2*2*22*64];
-static uint32_t dv_idct_factor_hd1080[2*4*16*64];
-static uint32_t dv_idct_factor_hd720 [2*4*16*64];
-
-static const DVprofile dv_profiles[] = {
-    { .dsf = 0,
-      .video_stype = 0x0,
-      .frame_size = 120000,        /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
-      .difseg_size = 10,
-      .n_difchan = 1,
-      .time_base = { 1001, 30000 },
-      .ltc_divisor = 30,
-      .height = 480,
-      .width = 720,
-      .sar = {{10, 11}, {40, 33}},
-      .work_chunks = &work_chunks_dv25ntsc[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV411P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 90,
-      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
-      .audio_shuffle = dv_audio_shuffle525,
-    },
-    { .dsf = 1,
-      .video_stype = 0x0,
-      .frame_size = 144000,        /* IEC 61834 - 625/50 (PAL) */
-      .difseg_size = 12,
-      .n_difchan = 1,
-      .time_base = { 1, 25 },
-      .ltc_divisor = 25,
-      .height = 576,
-      .width = 720,
-      .sar = {{59, 54}, {118, 81}},
-      .work_chunks = &work_chunks_dv25pal[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV420P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 108,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    },
-    { .dsf = 1,
-      .video_stype = 0x0,
-      .frame_size = 144000,        /* SMPTE-314M - 625/50 (PAL) */
-      .difseg_size = 12,
-      .n_difchan = 1,
-      .time_base = { 1, 25 },
-      .ltc_divisor = 25,
-      .height = 576,
-      .width = 720,
-      .sar = {{59, 54}, {118, 81}},
-      .work_chunks = &work_chunks_dv25pal411[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV411P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 108,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    },
-    { .dsf = 0,
-      .video_stype = 0x4,
-      .frame_size = 240000,        /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
-      .difseg_size = 10,           /* also known as "DVCPRO50" */
-      .n_difchan = 2,
-      .time_base = { 1001, 30000 },
-      .ltc_divisor = 30,
-      .height = 480,
-      .width = 720,
-      .sar = {{10, 11}, {40, 33}},
-      .work_chunks = &work_chunks_dv50ntsc[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 90,
-      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
-      .audio_shuffle = dv_audio_shuffle525,
-    },
-    { .dsf = 1,
-      .video_stype = 0x4,
-      .frame_size = 288000,        /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
-      .difseg_size = 12,           /* also known as "DVCPRO50" */
-      .n_difchan = 2,
-      .time_base = { 1, 25 },
-      .ltc_divisor = 25,
-      .height = 576,
-      .width = 720,
-      .sar = {{59, 54}, {118, 81}},
-      .work_chunks = &work_chunks_dv50pal[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 108,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    },
-    { .dsf = 0,
-      .video_stype = 0x14,
-      .frame_size = 480000,        /* SMPTE-370M - 1080i60 100 Mbps */
-      .difseg_size = 10,           /* also known as "DVCPRO HD" */
-      .n_difchan = 4,
-      .time_base = { 1001, 30000 },
-      .ltc_divisor = 30,
-      .height = 1080,
-      .width = 1280,
-      .sar = {{1, 1}, {1, 1}},
-      .work_chunks = &work_chunks_dv100ntsci[0],
-      .idct_factor = &dv_idct_factor_hd1080[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 8,
-      .block_sizes = block_sizes_dv100,
-      .audio_stride = 90,
-      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
-      .audio_shuffle = dv_audio_shuffle525,
-    },
-    { .dsf = 1,
-      .video_stype = 0x14,
-      .frame_size = 576000,        /* SMPTE-370M - 1080i50 100 Mbps */
-      .difseg_size = 12,           /* also known as "DVCPRO HD" */
-      .n_difchan = 4,
-      .time_base = { 1, 25 },
-      .ltc_divisor = 25,
-      .height = 1080,
-      .width = 1440,
-      .sar = {{1, 1}, {1, 1}},
-      .work_chunks = &work_chunks_dv100pali[0],
-      .idct_factor = &dv_idct_factor_hd1080[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 8,
-      .block_sizes = block_sizes_dv100,
-      .audio_stride = 108,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    },
-    { .dsf = 0,
-      .video_stype = 0x18,
-      .frame_size = 240000,        /* SMPTE-370M - 720p60 100 Mbps */
-      .difseg_size = 10,           /* also known as "DVCPRO HD" */
-      .n_difchan = 2,
-      .time_base = { 1001, 60000 },
-      .ltc_divisor = 60,
-      .height = 720,
-      .width = 960,
-      .sar = {{1, 1}, {1, 1}},
-      .work_chunks = &work_chunks_dv100ntscp[0],
-      .idct_factor = &dv_idct_factor_hd720[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 8,
-      .block_sizes = block_sizes_dv100,
-      .audio_stride = 90,
-      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
-      .audio_shuffle = dv_audio_shuffle525,
-    },
-    { .dsf = 1,
-      .video_stype = 0x18,
-      .frame_size = 288000,        /* SMPTE-370M - 720p50 100 Mbps */
-      .difseg_size = 12,           /* also known as "DVCPRO HD" */
-      .n_difchan = 2,
-      .time_base = { 1, 50 },
-      .ltc_divisor = 50,
-      .height = 720,
-      .width = 960,
-      .sar = {{1, 1}, {1, 1}},
-      .work_chunks = &work_chunks_dv100palp[0],
-      .idct_factor = &dv_idct_factor_hd720[0],
-      .pix_fmt = PIX_FMT_YUV422P,
-      .bpm = 8,
-      .block_sizes = block_sizes_dv100,
-      .audio_stride = 90,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    },
-    { .dsf = 1,
-      .video_stype = 0x1,
-      .frame_size = 144000,        /* IEC 61883-5 - 625/50 (PAL) */
-      .difseg_size = 12,
-      .n_difchan = 1,
-      .time_base = { 1, 25 },
-      .ltc_divisor = 25,
-      .height = 576,
-      .width = 720,
-      .sar = {{59, 54}, {118, 81}},
-      .work_chunks = &work_chunks_dv25pal[0],
-      .idct_factor = &dv_idct_factor_sd[0],
-      .pix_fmt = PIX_FMT_YUV420P,
-      .bpm = 6,
-      .block_sizes = block_sizes_dv2550,
-      .audio_stride = 108,
-      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle625,
-    }
-};
-
 enum dv_section_type {
      dv_sect_header  = 0x1f,
      dv_sect_subcode = 0x3f,
@@ -718,44 +501,9 @@ enum dv_pack_type {
  */
 #define DV_MAX_BPM 8
 
-static inline
-const DVprofile* dv_frame_profile(const DVprofile *sys,
-                                  const uint8_t* frame, unsigned buf_size)
-{
-   int i;
-
-   int dsf = (frame[3] & 0x80) >> 7;
-
-   int stype = frame[80*5 + 48 + 3] & 0x1f;
-
-   /* 576i50 25Mbps 4:1:1 is a special case */
-   if (dsf == 1 && stype == 0 && frame[5] & 0x07) {
-       return &dv_profiles[2];
-   }
-
-   for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
-       if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
-           return &dv_profiles[i];
-
-   /* check if old sys matches and assumes corrupted input */
-   if (sys && buf_size == sys->frame_size)
-       return sys;
-
-   return NULL;
-}
-
-static const DVprofile* dv_codec_profile(AVCodecContext* codec)
-{
-    int i;
-
-    for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
-       if (codec->height  == dv_profiles[i].height  &&
-           codec->pix_fmt == dv_profiles[i].pix_fmt &&
-           codec->width   == dv_profiles[i].width)
-               return &dv_profiles[i];
-
-    return NULL;
-}
+const DVprofile* ff_dv_frame_profile(const DVprofile *sys,
+                                  const uint8_t* frame, unsigned buf_size);
+const DVprofile* ff_dv_codec_profile(AVCodecContext* codec);
 
 static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num,
                                   uint8_t seq_num, uint8_t dif_num,
diff --git a/libavformat/dv.c b/libavformat/dv.c
index 8e0a83492e..085e8d2d06 100644
--- a/libavformat/dv.c
+++ b/libavformat/dv.c
@@ -322,7 +322,7 @@ int dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
     uint8_t *ppcm[4] = {0};
 
     if (buf_size < DV_PROFILE_BYTES ||
-        !(c->sys = dv_frame_profile(c->sys, buf, buf_size)) ||
+        !(c->sys = ff_dv_frame_profile(c->sys, buf, buf_size)) ||
         buf_size < c->sys->frame_size) {
           return -1;   /* Broken frame, or not enough data */
     }
@@ -368,7 +368,7 @@ static int64_t dv_frame_offset(AVFormatContext *s, DVDemuxContext *c,
                               int64_t timestamp, int flags)
 {
     // FIXME: sys may be wrong if last dv_read_packet() failed (buffer is junk)
-    const DVprofile* sys = dv_codec_profile(c->vst->codec);
+    const DVprofile* sys = ff_dv_codec_profile(c->vst->codec);
     int64_t offset;
     int64_t size = url_fsize(s->pb);
     int64_t max_offset = ((size-1) / sys->frame_size) * sys->frame_size;
@@ -431,7 +431,7 @@ static int dv_read_header(AVFormatContext *s,
         url_fseek(s->pb, -DV_PROFILE_BYTES, SEEK_CUR) < 0)
         return AVERROR(EIO);
 
-    c->dv_demux->sys = dv_frame_profile(c->dv_demux->sys, c->buf, DV_PROFILE_BYTES);
+    c->dv_demux->sys = ff_dv_frame_profile(c->dv_demux->sys, c->buf, DV_PROFILE_BYTES);
     if (!c->dv_demux->sys) {
         av_log(s, AV_LOG_ERROR, "Can't determine profile of DV input stream.\n");
         return -1;
diff --git a/libavformat/dvenc.c b/libavformat/dvenc.c
index c87697dd13..351062b76a 100644
--- a/libavformat/dvenc.c
+++ b/libavformat/dvenc.c
@@ -321,7 +321,7 @@ DVMuxContext* dv_init_mux(AVFormatContext* s)
                           c->ast[i]->codec->channels    != 2))
             goto bail_out;
     }
-    c->sys = dv_codec_profile(vst->codec);
+    c->sys = ff_dv_codec_profile(vst->codec);
     if (!c->sys)
         goto bail_out;