Merge remote-tracking branch 'qatar/master'

* qatar/master:
  rtmp: Support 'rtmp_live', an option which specifies if the media is a live stream.
  av_samples_fill_array: Mark unmodified function argument as const.
  lagarith: add YUY2 decoding support
  Support decoding unaligned rgb24 lagarith.
  dv: Split profile handling code into a separate file.
  flvenc: use AVFormatContext, not AVCodecContext for logging.
  mov: Remove write-only variable in mov_read_chan().
  fate: Change the probe-format refs to match the final text format committed.
  fate: Add avprobe as a make dependency
  Add probe fate tests to test for regressions in detecting media types.
  fate: Add oneline comparison method
  qdm2: clip array indices returned by qdm2_get_vlc().
  avplay: properly close/reopen AVAudioResampleContext on channel layout change
  avcodec: do not needlessly set packet size to 0 in avcodec_encode_audio2()
  avcodec: for audio encoding, reset output packet when it is not valid
  avcodec: refactor avcodec_encode_audio2() to merge common branches
  avcodec: remove fallbacks for AVCodec.encode() in avcodec_encode_audio2()

Conflicts:
	ffplay.c
	libavcodec/Makefile
	libavcodec/dvdata.c
	libavcodec/dvdata.h
	libavcodec/qdm2.c
	libavcodec/utils.c
	libavformat/flvenc.c
	libavformat/mov.c
	tests/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>

8 files changed, 523 insertions, 468 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 74c6b0d7e2..54e79af1ca 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -146,8 +146,8 @@ 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-$(CONFIG_DVVIDEO_DECODER)         += dvdec.o dv.o dvdata.o
-OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dv.o dvdata.o
+OBJS-$(CONFIG_DVVIDEO_DECODER)         += dvdec.o dv.o dvdata.o dv_profile.o
+OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dv.o dvdata.o dv_profile.o
 OBJS-$(CONFIG_DXA_DECODER)             += dxa.o
 OBJS-$(CONFIG_DXTORY_DECODER)          += dxtory.o
 OBJS-$(CONFIG_EAC3_DECODER)            += eac3dec.o eac3_data.o
@@ -609,8 +609,8 @@ OBJS-$(CONFIG_ADPCM_YAMAHA_ENCODER)       += adpcmenc.o adpcm_data.o
 OBJS-$(CONFIG_ADTS_MUXER)              += mpeg4audio.o
 OBJS-$(CONFIG_ADX_DEMUXER)             += adx.o
 OBJS-$(CONFIG_CAF_DEMUXER)             += mpeg4audio.o mpegaudiodata.o
-OBJS-$(CONFIG_DV_DEMUXER)              += dvdata.o
-OBJS-$(CONFIG_DV_MUXER)                += dvdata.o timecode.o
+OBJS-$(CONFIG_DV_DEMUXER)              += dv_profile.o
+OBJS-$(CONFIG_DV_MUXER)                += dv_profile.o timecode.o
 OBJS-$(CONFIG_FLAC_DEMUXER)            += flacdec.o flacdata.o flac.o vorbis_data.o
 OBJS-$(CONFIG_FLAC_MUXER)              += flacdec.o flacdata.o flac.o vorbis_data.o
 OBJS-$(CONFIG_FLV_DEMUXER)             += mpeg4audio.o
diff --git a/libavcodec/dv_profile.c b/libavcodec/dv_profile.c
new file mode 100644
index 0000000000..8359daebe1
--- /dev/null
+++ b/libavcodec/dv_profile.c
@@ -0,0 +1,354 @@
+/*
+ * This file is part of Libav.
+ *
+ * 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.
+ *
+ * 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/pixdesc.h"
+#include "avcodec.h"
+#include "dv_profile.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 uint8_t dv_audio_shuffle525[10][9] = {
+  {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
+  {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
+  { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
+  { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
+  { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
+
+  {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
+  {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
+  { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
+  { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
+  { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
+};
+
+static const uint8_t dv_audio_shuffle625[12][9] = {
+  {   0,  36,  72,  26,  62,  98,  16,  52,  88}, /* 1st channel */
+  {   6,  42,  78,  32,  68, 104,  22,  58,  94},
+  {  12,  48,  84,   2,  38,  74,  28,  64, 100},
+  {  18,  54,  90,   8,  44,  80,  34,  70, 106},
+  {  24,  60,  96,  14,  50,  86,   4,  40,  76},
+  {  30,  66, 102,  20,  56,  92,  10,  46,  82},
+
+  {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */
+  {   7,  43,  79,  33,  69, 105,  23,  59,  95},
+  {  13,  49,  85,   3,  39,  75,  29,  65, 101},
+  {  19,  55,  91,   9,  45,  81,  35,  71, 107},
+  {  25,  61,  97,  15,  51,  87,   5,  41,  77},
+  {  31,  67, 103,  21,  57,  93,  11,  47,  83},
+};
+
+/* macroblock bit budgets */
+static const uint8_t block_sizes_dv2550[8] = {
+    112, 112, 112, 112, 80, 80, 0, 0,
+};
+
+static const uint8_t block_sizes_dv100[8] = {
+    80, 80, 80, 80, 80, 80, 64, 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 = {{8, 9}, {32, 27}},
+      .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 = {{16, 15}, {64, 45}},
+      .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 = {{16, 15}, {64, 45}},
+      .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 = {{8, 9}, {32, 27}},
+      .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 = {{16, 15}, {64, 45}},
+      .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}, {3, 2}},
+      .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}, {4, 3}},
+      .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}, {4, 3}},
+      .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}, {4, 3}},
+      .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 = {{16, 15}, {64, 45}},
+      .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* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,
+                                  const uint8_t* frame, unsigned buf_size)
+{
+    int i, dsf, stype;
+
+    if(buf_size < DV_PROFILE_BYTES)
+        return NULL;
+
+    dsf = (frame[3] & 0x80) >> 7;
+    stype = frame[80 * 5 + 48 + 3] & 0x1f;
+
+    /* 576i50 25Mbps 4:1:1 is a special case */
+    if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
+        return &dv_profiles[2];
+    }
+
+    if(stype == 0 && codec && codec->codec_tag==AV_RL32("dvsd") && codec->coded_width==720 && codec->coded_height==576)
+        return &dv_profiles[1];
+
+    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;
+
+    /* hack for trac issue #217, dv files created with QuickTime 3 */
+    if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
+        return &dv_profiles[dsf];
+
+    return NULL;
+}
+
+const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
+                                  const uint8_t* frame, unsigned buf_size)
+{
+    return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size);
+}
+
+const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec)
+{
+    int i;
+    int w, h;
+
+    if (codec->coded_width || codec->coded_height) {
+        w = codec->coded_width;
+        h = codec->coded_height;
+    } else {
+        w = codec->width;
+        h = codec->height;
+    }
+
+    for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
+       if (h == dv_profiles[i].height  &&
+           codec->pix_fmt == dv_profiles[i].pix_fmt &&
+           w == dv_profiles[i].width)
+               return &dv_profiles[i];
+
+    return NULL;
+}
+
+void ff_dv_print_profiles(void *logctx, int loglevel)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
+        const DVprofile *p = &dv_profiles[i];
+        av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "
+               "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
+               p->time_base.den, p->time_base.num);
+    }
+}
diff --git a/libavcodec/dv_profile.h b/libavcodec/dv_profile.h
new file mode 100644
index 0000000000..1a2a60fefa
--- /dev/null
+++ b/libavcodec/dv_profile.h
@@ -0,0 +1,78 @@
+/*
+ * This file is part of Libav.
+ *
+ * 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.
+ *
+ * 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DV_PROFILE_H
+#define AVCODEC_DV_PROFILE_H
+
+#include <stdint.h>
+
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+#include "avcodec.h"
+
+/* minimum number of bytes to read from a DV stream in order to
+   determine the profile */
+#define DV_PROFILE_BYTES (6*80) /* 6 DIF blocks */
+
+typedef struct DVwork_chunk {
+    uint16_t  buf_offset;
+    uint16_t  mb_coordinates[5];
+} DVwork_chunk;
+
+/*
+ * DVprofile is used to express the differences between various
+ * DV flavors. For now it's primarily used for differentiating
+ * 525/60 and 625/50, but the plans are to use it for various
+ * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
+ */
+typedef struct DVprofile {
+    int              dsf;                   /* value of the dsf in the DV header */
+    int              video_stype;           /* stype for VAUX source pack */
+    int              frame_size;            /* total size of one frame in bytes */
+    int              difseg_size;           /* number of DIF segments per DIF channel */
+    int              n_difchan;             /* number of DIF channels per frame */
+    AVRational       time_base;             /* 1/framerate */
+    int              ltc_divisor;           /* FPS from the LTS standpoint */
+    int              height;                /* picture height in pixels */
+    int              width;                 /* picture width in pixels */
+    AVRational       sar[2];                /* sample aspect ratios for 4:3 and 16:9 */
+    DVwork_chunk    *work_chunks;           /* each thread gets its own chunk of frame to work on */
+    uint32_t        *idct_factor;           /* set of iDCT factor tables */
+    enum PixelFormat pix_fmt;               /* picture pixel format */
+    int              bpm;                   /* blocks per macroblock */
+    const uint8_t   *block_sizes;           /* AC block sizes, in bits */
+    int              audio_stride;          /* size of audio_shuffle table */
+    int              audio_min_samples[3];  /* min amount of audio samples */
+                                            /* for 48kHz, 44.1kHz and 32kHz */
+    int              audio_samples_dist[5]; /* how many samples are supposed to be */
+                                            /* in each frame in a 5 frames window */
+    const uint8_t  (*audio_shuffle)[9];     /* PCM shuffling table */
+} DVprofile;
+
+const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
+                                         const uint8_t* frame, unsigned buf_size);
+const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,
+                                  const uint8_t* frame, unsigned buf_size);
+const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec);
+
+/**
+ *  Print all allowed DV profiles into logctx at specified logging level.
+ */
+void ff_dv_print_profiles(void *logctx, int loglevel);
+
+#endif /* AVCODEC_DV_PROFILE_H */
diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c
index fc526e3309..a7e3d591ad 100644
--- a/libavcodec/dvdata.c
+++ b/libavcodec/dvdata.c
@@ -24,9 +24,6 @@
  * Constants for DV codec.
  */
 
-#include "libavutil/rational.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/pixdesc.h"
 #include "avcodec.h"
 #include "dvdata.h"
 
@@ -123,330 +120,3 @@ const int ff_dv_iweight_720_c[64] = {
     394, 406, 418, 438, 418, 464, 464, 492,
 };
 
-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 uint8_t dv_audio_shuffle525[10][9] = {
-  {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
-  {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
-  { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
-  { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
-  { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
-
-  {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
-  {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
-  { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
-  { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
-  { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
-};
-
-static const uint8_t dv_audio_shuffle625[12][9] = {
-  {   0,  36,  72,  26,  62,  98,  16,  52,  88}, /* 1st channel */
-  {   6,  42,  78,  32,  68, 104,  22,  58,  94},
-  {  12,  48,  84,   2,  38,  74,  28,  64, 100},
-  {  18,  54,  90,   8,  44,  80,  34,  70, 106},
-  {  24,  60,  96,  14,  50,  86,   4,  40,  76},
-  {  30,  66, 102,  20,  56,  92,  10,  46,  82},
-
-  {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */
-  {   7,  43,  79,  33,  69, 105,  23,  59,  95},
-  {  13,  49,  85,   3,  39,  75,  29,  65, 101},
-  {  19,  55,  91,   9,  45,  81,  35,  71, 107},
-  {  25,  61,  97,  15,  51,  87,   5,  41,  77},
-  {  31,  67, 103,  21,  57,  93,  11,  47,  83},
-};
-
-/* macroblock bit budgets */
-static const uint8_t block_sizes_dv2550[8] = {
-    112, 112, 112, 112, 80, 80, 0, 0,
-};
-
-static const uint8_t block_sizes_dv100[8] = {
-    80, 80, 80, 80, 80, 80, 64, 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 = {{8, 9}, {32, 27}},
-      .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 = {{16, 15}, {64, 45}},
-      .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 = {{16, 15}, {64, 45}},
-      .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 = {{8, 9}, {32, 27}},
-      .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 = {{16, 15}, {64, 45}},
-      .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}, {3, 2}},
-      .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}, {4, 3}},
-      .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}, {4, 3}},
-      .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}, {4, 3}},
-      .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 = {{16, 15}, {64, 45}},
-      .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* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,
-                                  const uint8_t* frame, unsigned buf_size)
-{
-    int i, dsf, stype;
-
-    if(buf_size < DV_PROFILE_BYTES)
-        return NULL;
-
-    dsf = (frame[3] & 0x80) >> 7;
-    stype = frame[80 * 5 + 48 + 3] & 0x1f;
-
-    /* 576i50 25Mbps 4:1:1 is a special case */
-    if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
-        return &dv_profiles[2];
-    }
-
-    if(stype == 0 && codec && codec->codec_tag==AV_RL32("dvsd") && codec->coded_width==720 && codec->coded_height==576)
-        return &dv_profiles[1];
-
-    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;
-
-    /* hack for trac issue #217, dv files created with QuickTime 3 */
-    if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
-        return &dv_profiles[dsf];
-
-    return NULL;
-}
-
-const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
-                                  const uint8_t* frame, unsigned buf_size)
-{
-    return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size);
-}
-
-const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec)
-{
-    int i;
-    int w, h;
-
-    if (codec->coded_width || codec->coded_height) {
-        w = codec->coded_width;
-        h = codec->coded_height;
-    } else {
-        w = codec->width;
-        h = codec->height;
-    }
-
-    for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
-       if (h == dv_profiles[i].height  &&
-           codec->pix_fmt      == dv_profiles[i].pix_fmt &&
-           w == dv_profiles[i].width)
-               return &dv_profiles[i];
-
-    return NULL;
-}
-
-void ff_dv_print_profiles(void *logctx, int loglevel)
-{
-    int i;
-    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
-        const DVprofile *p = &dv_profiles[i];
-        av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "
-               "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
-               p->time_base.den, p->time_base.num);
-    }
-}
diff --git a/libavcodec/dvdata.h b/libavcodec/dvdata.h
index c244fada67..b1fa44ae39 100644
--- a/libavcodec/dvdata.h
+++ b/libavcodec/dvdata.h
@@ -27,45 +27,10 @@
 #ifndef AVCODEC_DVDATA_H
 #define AVCODEC_DVDATA_H
 
-#include "libavutil/rational.h"
 #include "avcodec.h"
 #include "dsputil.h"
 #include "get_bits.h"
-
-typedef struct DVwork_chunk {
-    uint16_t  buf_offset;
-    uint16_t  mb_coordinates[5];
-} DVwork_chunk;
-
-/*
- * DVprofile is used to express the differences between various
- * DV flavors. For now it's primarily used for differentiating
- * 525/60 and 625/50, but the plans are to use it for various
- * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
- */
-typedef struct DVprofile {
-    int              dsf;                   /* value of the dsf in the DV header */
-    int              video_stype;           /* stype for VAUX source pack */
-    int              frame_size;            /* total size of one frame in bytes */
-    int              difseg_size;           /* number of DIF segments per DIF channel */
-    int              n_difchan;             /* number of DIF channels per frame */
-    AVRational       time_base;             /* 1/framerate */
-    int              ltc_divisor;           /* FPS from the LTS standpoint */
-    int              height;                /* picture height in pixels */
-    int              width;                 /* picture width in pixels */
-    AVRational       sar[2];                /* sample aspect ratios for 4:3 and 16:9 */
-    DVwork_chunk    *work_chunks;           /* each thread gets its own chunk of frame to work on */
-    uint32_t        *idct_factor;           /* set of iDCT factor tables */
-    enum PixelFormat pix_fmt;               /* picture pixel format */
-    int              bpm;                   /* blocks per macroblock */
-    const uint8_t   *block_sizes;           /* AC block sizes, in bits */
-    int              audio_stride;          /* size of audio_shuffle table */
-    int              audio_min_samples[3];  /* min amount of audio samples */
-                                            /* for 48kHz, 44.1kHz and 32kHz */
-    int              audio_samples_dist[5]; /* how many samples are supposed to be */
-                                            /* in each frame in a 5 frames window */
-    const uint8_t  (*audio_shuffle)[9];     /* PCM shuffling table */
-} DVprofile;
+#include "dv_profile.h"
 
 typedef struct DVVideoContext {
     const DVprofile *sys;
@@ -118,10 +83,6 @@ extern const int ff_dv_iweight_720_c[64];
 #define DV_PROFILE_IS_1080i50(p) (((p)->video_stype == 0x14) && ((p)->dsf == 1))
 #define DV_PROFILE_IS_720p50(p)  (((p)->video_stype == 0x18) && ((p)->dsf == 1))
 
-/* minimum number of bytes to read from a DV stream in order to
-   determine the profile */
-#define DV_PROFILE_BYTES (6*80) /* 6 DIF blocks */
-
 /**
  * largest possible DV frame, in bytes (1080i50)
  */
@@ -136,12 +97,6 @@ extern const int ff_dv_iweight_720_c[64];
 
 extern RL_VLC_ELEM ff_dv_rl_vlc[1184];
 
-const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
-                                  const uint8_t* frame, unsigned buf_size);
-const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,
-                                  const uint8_t* frame, unsigned buf_size);
-const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec);
-
 int ff_dv_init_dynamic_tables(const DVprofile *d);
 int ff_dvvideo_init(AVCodecContext *avctx);
 
@@ -166,9 +121,4 @@ static inline void dv_calculate_mb_xy(DVVideoContext *s, DVwork_chunk *work_chun
      }
 }
 
-/**
- *  Print all allowed DV profiles into logctx at specified logging level.
- */
-void ff_dv_print_profiles(void *logctx, int loglevel);
-
 #endif /* AVCODEC_DVDATA_H */
diff --git a/libavcodec/lagarith.c b/libavcodec/lagarith.c
index c2a8ed18e4..27793acdb0 100644
--- a/libavcodec/lagarith.c
+++ b/libavcodec/lagarith.c
@@ -269,6 +269,40 @@ static void lag_pred_line(LagarithContext *l, uint8_t *buf,
     }
 }
 
+static void lag_pred_line_yuy2(LagarithContext *l, uint8_t *buf,
+                               int width, int stride, int line,
+                               int is_luma)
+{
+    int L, TL;
+
+    if (!line) {
+        if (is_luma) {
+            buf++;
+            width--;
+        }
+        l->dsp.add_hfyu_left_prediction(buf + 1, buf + 1, width - 1, buf[0]);
+        return;
+    }
+    if (line == 1) {
+        const int HEAD = is_luma ? 4 : 2;
+        int i;
+
+        L  = buf[width - stride - 1];
+        TL = buf[HEAD  - stride - 1];
+        for (i = 0; i < HEAD; i++) {
+            L += buf[i];
+            buf[i] = L;
+        }
+        buf   += HEAD;
+        width -= HEAD;
+    } else {
+        TL = buf[width - (2 * stride) - 1];
+        L  = buf[width - stride - 1];
+    }
+    l->dsp.add_hfyu_median_prediction(buf, buf - stride, buf, width,
+                                      &L, &TL);
+}
+
 static int lag_decode_line(LagarithContext *l, lag_rac *rac,
                            uint8_t *dst, int width, int stride,
                            int esc_count)
@@ -442,9 +476,17 @@ static int lag_decode_arith_plane(LagarithContext *l, uint8_t *dst,
         return -1;
     }
 
-    for (i = 0; i < height; i++) {
-        lag_pred_line(l, dst, width, stride, i);
-        dst += stride;
+    if (l->avctx->pix_fmt != PIX_FMT_YUV422P) {
+        for (i = 0; i < height; i++) {
+            lag_pred_line(l, dst, width, stride, i);
+            dst += stride;
+        }
+    } else {
+        for (i = 0; i < height; i++) {
+            lag_pred_line_yuy2(l, dst, width, stride, i,
+                               width == l->avctx->width);
+            dst += stride;
+        }
     }
 
     return 0;
@@ -566,6 +608,32 @@ static int lag_decode_frame(AVCodecContext *avctx,
                 srcs[i] += l->rgb_stride;
         }
         break;
+    case FRAME_ARITH_YUY2:
+        avctx->pix_fmt = PIX_FMT_YUV422P;
+
+        if (avctx->get_buffer(avctx, p) < 0) {
+            av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+            return -1;
+        }
+
+        if (offset_ry >= buf_size ||
+            offset_gu >= buf_size ||
+            offset_bv >= buf_size) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Invalid frame offsets\n");
+            return AVERROR_INVALIDDATA;
+        }
+
+        lag_decode_arith_plane(l, p->data[0], avctx->width, avctx->height,
+                               p->linesize[0], buf + offset_ry,
+                               buf_size - offset_ry);
+        lag_decode_arith_plane(l, p->data[2], avctx->width / 2,
+                               avctx->height, p->linesize[2],
+                               buf + offset_gu, buf_size - offset_gu);
+        lag_decode_arith_plane(l, p->data[1], avctx->width / 2,
+                               avctx->height, p->linesize[1],
+                               buf + offset_bv, buf_size - offset_bv);
+        break;
     case FRAME_ARITH_YV12:
         avctx->pix_fmt = PIX_FMT_YUV420P;
 
diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
index c38282fdf2..a71de72d5b 100644
--- a/libavcodec/qdm2.c
+++ b/libavcodec/qdm2.c
@@ -887,10 +887,10 @@ static int synthfilt_build_sb_samples (QDM2Context *q, GetBitContext *gb, int le
 
                     case 30:
                         if (get_bits_left(gb) >= 4) {
-                            unsigned v = qdm2_get_vlc(gb, &vlc_tab_type30, 0, 1);
-                            if (v >= FF_ARRAY_ELEMS(type30_dequant))
+                            unsigned index = qdm2_get_vlc(gb, &vlc_tab_type30, 0, 1);
+                            if (index >= FF_ARRAY_ELEMS(type30_dequant))
                                 return AVERROR_INVALIDDATA;
-                            samples[0] = type30_dequant[v];
+                            samples[0] = type30_dequant[index];
                         } else
                             samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
 
@@ -905,10 +905,10 @@ static int synthfilt_build_sb_samples (QDM2Context *q, GetBitContext *gb, int le
                                 type34_predictor = samples[0];
                                 type34_first = 0;
                             } else {
-                                unsigned v = qdm2_get_vlc(gb, &vlc_tab_type34, 0, 1);
-                                if (v >= FF_ARRAY_ELEMS(type34_delta))
+                                unsigned index = qdm2_get_vlc(gb, &vlc_tab_type34, 0, 1);
+                                if (index >= FF_ARRAY_ELEMS(type34_delta))
                                     return AVERROR_INVALIDDATA;
-                                samples[0] = type34_delta[v] / type34_div + type34_predictor;
+                                samples[0] = type34_delta[index] / type34_div + type34_predictor;
                                 type34_predictor = samples[0];
                             }
                         } else {
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index addae0413a..79b355472e 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1008,7 +1008,6 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
 {
     int ret;
     AVPacket user_pkt = *avpkt;
-    int nb_samples;
     int needs_realloc = !user_pkt.data;
 
     *got_packet_ptr = 0;
@@ -1016,27 +1015,23 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
     if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
         av_free_packet(avpkt);
         av_init_packet(avpkt);
-        avpkt->size = 0;
         return 0;
     }
 
     /* check for valid frame size */
     if (frame) {
-        nb_samples = frame->nb_samples;
         if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
-            if (nb_samples > avctx->frame_size)
+            if (frame->nb_samples > avctx->frame_size)
                 return AVERROR(EINVAL);
         } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
-            if (nb_samples != avctx->frame_size)
+            if (frame->nb_samples != avctx->frame_size)
                 return AVERROR(EINVAL);
         }
-    } else {
-        nb_samples = avctx->frame_size;
     }
 
-    if (avctx->codec->encode2) {
-        ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
-        if (!ret && *got_packet_ptr) {
+    ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+    if (!ret) {
+        if (*got_packet_ptr) {
             if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
                 if (avpkt->pts == AV_NOPTS_VALUE)
                     avpkt->pts = frame->pts;
@@ -1048,69 +1043,6 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
         } else {
             avpkt->size = 0;
         }
-    } else {
-        /* for compatibility with encoders not supporting encode2(), we need to
-           allocate a packet buffer if the user has not provided one or check
-           the size otherwise */
-        int fs_tmp   = 0;
-        int buf_size = avpkt->size;
-        if (!user_pkt.data) {
-            if (avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE) {
-                av_assert0(av_get_bits_per_sample(avctx->codec_id) != 0);
-                if (!frame)
-                    return AVERROR(EINVAL);
-                buf_size = nb_samples * avctx->channels *
-                           av_get_bits_per_sample(avctx->codec_id) / 8;
-            } else {
-                /* this is a guess as to the required size.
-                   if an encoder needs more than this, it should probably
-                   implement encode2() */
-                buf_size = 2 * avctx->frame_size * avctx->channels *
-                           av_get_bytes_per_sample(avctx->sample_fmt);
-                buf_size += 2*FF_MIN_BUFFER_SIZE;
-            }
-        }
-        if ((ret = ff_alloc_packet2(avctx, avpkt, buf_size)))
-            return ret;
-
-        /* Encoders using AVCodec.encode() that support
-           CODEC_CAP_SMALL_LAST_FRAME require avctx->frame_size to be set to
-           the smaller size when encoding the last frame.
-           This code can be removed once all encoders supporting
-           CODEC_CAP_SMALL_LAST_FRAME use encode2() */
-        if ((avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) &&
-            nb_samples < avctx->frame_size) {
-            fs_tmp = avctx->frame_size;
-            avctx->frame_size = nb_samples;
-        }
-
-        /* encode the frame */
-        ret = avctx->codec->encode(avctx, avpkt->data, avpkt->size,
-                                   frame ? frame->data[0] : NULL);
-        if (ret >= 0) {
-            if (!ret) {
-                /* no output. if the packet data was allocated by libavcodec,
-                   free it */
-                if (!user_pkt.data && avpkt->data != avctx->internal->byte_buffer)
-                    av_freep(&avpkt->data);
-            } else {
-                if (avctx->coded_frame)
-                    avpkt->pts = avpkt->dts = avctx->coded_frame->pts;
-                /* Set duration for final small packet. This can be removed
-                   once all encoders supporting CODEC_CAP_SMALL_LAST_FRAME use
-                   encode2() */
-                if (fs_tmp) {
-                    avpkt->duration = ff_samples_to_time_base(avctx,
-                                                              avctx->frame_size);
-                }
-            }
-            avpkt->size = ret;
-            *got_packet_ptr = (ret > 0);
-            ret = 0;
-        }
-
-        if (fs_tmp)
-            avctx->frame_size = fs_tmp;
     }
     if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
         needs_realloc = 0;
@@ -1141,8 +1073,11 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
         avctx->frame_number++;
     }
 
-    if (ret < 0 || !*got_packet_ptr)
+    if (ret < 0 || !*got_packet_ptr) {
         av_free_packet(avpkt);
+        av_init_packet(avpkt);
+        return ret;
+    }
 
     /* NOTE: if we add any audio encoders which output non-keyframe packets,
              this needs to be moved to the encoders, but for now we can do it