X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Futils.c;h=9cee9890987cca4b80e0415dfd8ebe7da81fd4d9;hb=bc70684e74a185d7b80c8b80bdedda659cb581b8;hp=c10539593e9baaa5aa26f72383fbbd78debba128;hpb=555f5c1fc5ae0c4e7b0431dc3166c3fcf3f4e979;p=ffmpeg

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index c10539593e9..9cee9890987 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -26,48 +26,26 @@
  */
 
 #include "config.h"
-#include "libavutil/attributes.h"
 #include "libavutil/avassert.h"
 #include "libavutil/avstring.h"
-#include "libavutil/bprint.h"
-#include "libavutil/channel_layout.h"
-#include "libavutil/crc.h"
-#include "libavutil/frame.h"
-#include "libavutil/hwcontext.h"
-#include "libavutil/internal.h"
-#include "libavutil/mathematics.h"
+#include "libavutil/intreadwrite.h"
 #include "libavutil/mem_internal.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/imgutils.h"
-#include "libavutil/samplefmt.h"
-#include "libavutil/dict.h"
-#include "libavutil/thread.h"
+#include "libavutil/pixfmt.h"
 #include "avcodec.h"
-#include "decode.h"
+#include "codec.h"
 #include "hwconfig.h"
-#include "libavutil/opt.h"
-#include "mpegvideo.h"
 #include "thread.h"
-#include "frame_thread_encoder.h"
 #include "internal.h"
-#include "packet_internal.h"
 #include "put_bits.h"
 #include "raw.h"
-#include "bytestream.h"
 #include "version.h"
 #include <stdlib.h>
 #include <stdarg.h>
 #include <stdatomic.h>
 #include <limits.h>
 #include <float.h>
-#if CONFIG_ICONV
-# include <iconv.h>
-#endif
-
-#include "libavutil/ffversion.h"
-const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
-
-static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
 
 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
 {
@@ -440,32 +418,6 @@ void ff_color_frame(AVFrame *frame, const int c[4])
     }
 }
 
-int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
-{
-    int i;
-
-    for (i = 0; i < count; i++) {
-        int r = func(c, (char *)arg + i * size);
-        if (ret)
-            ret[i] = r;
-    }
-    emms_c();
-    return 0;
-}
-
-int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
-{
-    int i;
-
-    for (i = 0; i < count; i++) {
-        int r = func(c, arg, i, 0);
-        if (ret)
-            ret[i] = r;
-    }
-    emms_c();
-    return 0;
-}
-
 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
                                        unsigned int fourcc)
 {
@@ -477,726 +429,10 @@ enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
     return AV_PIX_FMT_NONE;
 }
 
-#if FF_API_CODEC_GET_SET
-MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
-MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
-MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
-MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
-MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
-
-unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
-{
-    return codec->properties;
-}
-
-int av_codec_get_max_lowres(const AVCodec *codec)
-{
-    return codec->max_lowres;
-}
-#endif
-
 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
     return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
 }
 
-static int64_t get_bit_rate(AVCodecContext *ctx)
-{
-    int64_t bit_rate;
-    int bits_per_sample;
-
-    switch (ctx->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-    case AVMEDIA_TYPE_DATA:
-    case AVMEDIA_TYPE_SUBTITLE:
-    case AVMEDIA_TYPE_ATTACHMENT:
-        bit_rate = ctx->bit_rate;
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
-        bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
-        break;
-    default:
-        bit_rate = 0;
-        break;
-    }
-    return bit_rate;
-}
-
-
-static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
-{
-    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
-        ff_mutex_lock(&codec_mutex);
-}
-
-static void ff_unlock_avcodec(const AVCodec *codec)
-{
-    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
-        ff_mutex_unlock(&codec_mutex);
-}
-
-int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
-{
-    int ret = 0;
-
-    ff_unlock_avcodec(codec);
-
-    ret = avcodec_open2(avctx, codec, options);
-
-    ff_lock_avcodec(avctx, codec);
-    return ret;
-}
-
-int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
-{
-    int ret = 0;
-    int codec_init_ok = 0;
-    AVDictionary *tmp = NULL;
-    const AVPixFmtDescriptor *pixdesc;
-    AVCodecInternal *avci;
-
-    if (avcodec_is_open(avctx))
-        return 0;
-
-    if (!codec && !avctx->codec) {
-        av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
-        return AVERROR(EINVAL);
-    }
-    if (codec && avctx->codec && codec != avctx->codec) {
-        av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
-                                    "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
-        return AVERROR(EINVAL);
-    }
-    if (!codec)
-        codec = avctx->codec;
-
-    if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
-        return AVERROR(EINVAL);
-
-    if (options)
-        av_dict_copy(&tmp, *options, 0);
-
-    ff_lock_avcodec(avctx, codec);
-
-    avci = av_mallocz(sizeof(*avci));
-    if (!avci) {
-        ret = AVERROR(ENOMEM);
-        goto end;
-    }
-    avctx->internal = avci;
-
-    avci->to_free = av_frame_alloc();
-    avci->compat_decode_frame = av_frame_alloc();
-    avci->compat_encode_packet = av_packet_alloc();
-    avci->buffer_frame = av_frame_alloc();
-    avci->buffer_pkt = av_packet_alloc();
-    avci->es.in_frame = av_frame_alloc();
-    avci->ds.in_pkt = av_packet_alloc();
-    avci->last_pkt_props = av_packet_alloc();
-    if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
-        !avci->buffer_frame || !avci->buffer_pkt          ||
-        !avci->es.in_frame  || !avci->ds.in_pkt           ||
-        !avci->to_free      || !avci->last_pkt_props) {
-        ret = AVERROR(ENOMEM);
-        goto free_and_end;
-    }
-
-    avci->skip_samples_multiplier = 1;
-
-    if (codec->priv_data_size > 0) {
-        if (!avctx->priv_data) {
-            avctx->priv_data = av_mallocz(codec->priv_data_size);
-            if (!avctx->priv_data) {
-                ret = AVERROR(ENOMEM);
-                goto free_and_end;
-            }
-            if (codec->priv_class) {
-                *(const AVClass **)avctx->priv_data = codec->priv_class;
-                av_opt_set_defaults(avctx->priv_data);
-            }
-        }
-        if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
-            goto free_and_end;
-    } else {
-        avctx->priv_data = NULL;
-    }
-    if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
-        goto free_and_end;
-
-    if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
-        av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-
-    // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
-    if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
-          (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
-        if (avctx->coded_width && avctx->coded_height)
-            ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
-        else if (avctx->width && avctx->height)
-            ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
-        if (ret < 0)
-            goto free_and_end;
-    }
-
-    if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
-        && (  av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
-           || av_image_check_size2(avctx->width,       avctx->height,       avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
-        av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
-        ff_set_dimensions(avctx, 0, 0);
-    }
-
-    if (avctx->width > 0 && avctx->height > 0) {
-        if (av_image_check_sar(avctx->width, avctx->height,
-                               avctx->sample_aspect_ratio) < 0) {
-            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
-                   avctx->sample_aspect_ratio.num,
-                   avctx->sample_aspect_ratio.den);
-            avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
-        }
-    }
-
-    /* if the decoder init function was already called previously,
-     * free the already allocated subtitle_header before overwriting it */
-    if (av_codec_is_decoder(codec))
-        av_freep(&avctx->subtitle_header);
-
-    if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-    if (avctx->sample_rate < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-    if (avctx->block_align < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-
-    avctx->codec = codec;
-    if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
-        avctx->codec_id == AV_CODEC_ID_NONE) {
-        avctx->codec_type = codec->type;
-        avctx->codec_id   = codec->id;
-    }
-    if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
-                                         && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
-        av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
-        ret = AVERROR(EINVAL);
-        goto free_and_end;
-    }
-    avctx->frame_number = 0;
-    avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
-
-    if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
-        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
-        const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
-        const AVCodec *codec2;
-        av_log(avctx, AV_LOG_ERROR,
-               "The %s '%s' is experimental but experimental codecs are not enabled, "
-               "add '-strict %d' if you want to use it.\n",
-               codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
-        codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
-        if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
-            av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
-                codec_string, codec2->name);
-        ret = AVERROR_EXPERIMENTAL;
-        goto free_and_end;
-    }
-
-    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
-        (!avctx->time_base.num || !avctx->time_base.den)) {
-        avctx->time_base.num = 1;
-        avctx->time_base.den = avctx->sample_rate;
-    }
-
-    if (!HAVE_THREADS)
-        av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
-
-    if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
-        ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
-        ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
-        ff_lock_avcodec(avctx, codec);
-        if (ret < 0)
-            goto free_and_end;
-    }
-
-    if (av_codec_is_decoder(avctx->codec)) {
-        ret = ff_decode_bsfs_init(avctx);
-        if (ret < 0)
-            goto free_and_end;
-    }
-
-    if (HAVE_THREADS
-        && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
-        ret = ff_thread_init(avctx);
-        if (ret < 0) {
-            goto free_and_end;
-        }
-    }
-    if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
-        avctx->thread_count = 1;
-
-    if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
-        av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
-               avctx->codec->max_lowres);
-        avctx->lowres = avctx->codec->max_lowres;
-    }
-
-    if (av_codec_is_encoder(avctx->codec)) {
-        int i;
-#if FF_API_CODED_FRAME
-FF_DISABLE_DEPRECATION_WARNINGS
-        avctx->coded_frame = av_frame_alloc();
-        if (!avctx->coded_frame) {
-            ret = AVERROR(ENOMEM);
-            goto free_and_end;
-        }
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-
-        if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
-            av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
-            ret = AVERROR(EINVAL);
-            goto free_and_end;
-        }
-
-        if (avctx->codec->sample_fmts) {
-            for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
-                if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
-                    break;
-                if (avctx->channels == 1 &&
-                    av_get_planar_sample_fmt(avctx->sample_fmt) ==
-                    av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
-                    avctx->sample_fmt = avctx->codec->sample_fmts[i];
-                    break;
-                }
-            }
-            if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
-                char buf[128];
-                snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
-                av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
-                       (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-        }
-        if (avctx->codec->pix_fmts) {
-            for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
-                if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
-                    break;
-            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
-                && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
-                     && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
-                char buf[128];
-                snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
-                av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
-                       (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
-                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
-                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
-                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
-                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
-                avctx->color_range = AVCOL_RANGE_JPEG;
-        }
-        if (avctx->codec->supported_samplerates) {
-            for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
-                if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
-                    break;
-            if (avctx->codec->supported_samplerates[i] == 0) {
-                av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
-                       avctx->sample_rate);
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-        }
-        if (avctx->sample_rate < 0) {
-            av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
-                    avctx->sample_rate);
-            ret = AVERROR(EINVAL);
-            goto free_and_end;
-        }
-        if (avctx->codec->channel_layouts) {
-            if (!avctx->channel_layout) {
-                av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
-            } else {
-                for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
-                    if (avctx->channel_layout == avctx->codec->channel_layouts[i])
-                        break;
-                if (avctx->codec->channel_layouts[i] == 0) {
-                    char buf[512];
-                    av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
-                    av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
-                    ret = AVERROR(EINVAL);
-                    goto free_and_end;
-                }
-            }
-        }
-        if (avctx->channel_layout && avctx->channels) {
-            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
-            if (channels != avctx->channels) {
-                char buf[512];
-                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
-                av_log(avctx, AV_LOG_ERROR,
-                       "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
-                       buf, channels, avctx->channels);
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-        } else if (avctx->channel_layout) {
-            avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
-        }
-        if (avctx->channels < 0) {
-            av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
-                    avctx->channels);
-            ret = AVERROR(EINVAL);
-            goto free_and_end;
-        }
-        if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
-            pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
-            if (    avctx->bits_per_raw_sample < 0
-                || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
-                av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
-                    avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
-                avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
-            }
-            if (avctx->width <= 0 || avctx->height <= 0) {
-                av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-        }
-        if (   (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
-            && avctx->bit_rate>0 && avctx->bit_rate<1000) {
-            av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
-        }
-
-        if (!avctx->rc_initial_buffer_occupancy)
-            avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
-
-        if (avctx->ticks_per_frame && avctx->time_base.num &&
-            avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
-            av_log(avctx, AV_LOG_ERROR,
-                   "ticks_per_frame %d too large for the timebase %d/%d.",
-                   avctx->ticks_per_frame,
-                   avctx->time_base.num,
-                   avctx->time_base.den);
-            goto free_and_end;
-        }
-
-        if (avctx->hw_frames_ctx) {
-            AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
-            if (frames_ctx->format != avctx->pix_fmt) {
-                av_log(avctx, AV_LOG_ERROR,
-                       "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-            if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
-                avctx->sw_pix_fmt != frames_ctx->sw_format) {
-                av_log(avctx, AV_LOG_ERROR,
-                       "Mismatching AVCodecContext.sw_pix_fmt (%s) "
-                       "and AVHWFramesContext.sw_format (%s)\n",
-                       av_get_pix_fmt_name(avctx->sw_pix_fmt),
-                       av_get_pix_fmt_name(frames_ctx->sw_format));
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            }
-            avctx->sw_pix_fmt = frames_ctx->sw_format;
-        }
-    }
-
-    avctx->pts_correction_num_faulty_pts =
-    avctx->pts_correction_num_faulty_dts = 0;
-    avctx->pts_correction_last_pts =
-    avctx->pts_correction_last_dts = INT64_MIN;
-
-    if (   !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
-        && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
-        av_log(avctx, AV_LOG_WARNING,
-               "gray decoding requested but not enabled at configuration time\n");
-    if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
-        avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
-    }
-
-    if (   avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
-        || avci->frame_thread_encoder)) {
-        ret = avctx->codec->init(avctx);
-        if (ret < 0) {
-            codec_init_ok = -1;
-            goto free_and_end;
-        }
-        codec_init_ok = 1;
-    }
-
-    ret=0;
-
-    if (av_codec_is_decoder(avctx->codec)) {
-        if (!avctx->bit_rate)
-            avctx->bit_rate = get_bit_rate(avctx);
-        /* validate channel layout from the decoder */
-        if (avctx->channel_layout) {
-            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
-            if (!avctx->channels)
-                avctx->channels = channels;
-            else if (channels != avctx->channels) {
-                char buf[512];
-                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
-                av_log(avctx, AV_LOG_WARNING,
-                       "Channel layout '%s' with %d channels does not match specified number of channels %d: "
-                       "ignoring specified channel layout\n",
-                       buf, channels, avctx->channels);
-                avctx->channel_layout = 0;
-            }
-        }
-        if (avctx->channels && avctx->channels < 0 ||
-            avctx->channels > FF_SANE_NB_CHANNELS) {
-            ret = AVERROR(EINVAL);
-            goto free_and_end;
-        }
-        if (avctx->bits_per_coded_sample < 0) {
-            ret = AVERROR(EINVAL);
-            goto free_and_end;
-        }
-        if (avctx->sub_charenc) {
-            if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
-                av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
-                       "supported with subtitles codecs\n");
-                ret = AVERROR(EINVAL);
-                goto free_and_end;
-            } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
-                av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
-                       "subtitles character encoding will be ignored\n",
-                       avctx->codec_descriptor->name);
-                avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
-            } else {
-                /* input character encoding is set for a text based subtitle
-                 * codec at this point */
-                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
-                    avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
-
-                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
-#if CONFIG_ICONV
-                    iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
-                    if (cd == (iconv_t)-1) {
-                        ret = AVERROR(errno);
-                        av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
-                               "with input character encoding \"%s\"\n", avctx->sub_charenc);
-                        goto free_and_end;
-                    }
-                    iconv_close(cd);
-#else
-                    av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
-                           "conversion needs a libavcodec built with iconv support "
-                           "for this codec\n");
-                    ret = AVERROR(ENOSYS);
-                    goto free_and_end;
-#endif
-                }
-            }
-        }
-
-#if FF_API_AVCTX_TIMEBASE
-        if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
-            avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
-    }
-    if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
-        av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
-    }
-
-end:
-    ff_unlock_avcodec(codec);
-    if (options) {
-        av_dict_free(options);
-        *options = tmp;
-    }
-
-    return ret;
-free_and_end:
-    if (avctx->codec && avctx->codec->close &&
-        (codec_init_ok > 0 || (codec_init_ok < 0 &&
-         avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
-        avctx->codec->close(avctx);
-
-    if (HAVE_THREADS && avci->thread_ctx)
-        ff_thread_free(avctx);
-
-    if (codec->priv_class && avctx->priv_data)
-        av_opt_free(avctx->priv_data);
-    av_opt_free(avctx);
-
-    if (av_codec_is_encoder(avctx->codec)) {
-#if FF_API_CODED_FRAME
-FF_DISABLE_DEPRECATION_WARNINGS
-        av_frame_free(&avctx->coded_frame);
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-        av_freep(&avctx->extradata);
-        avctx->extradata_size = 0;
-    }
-
-    av_dict_free(&tmp);
-    av_freep(&avctx->priv_data);
-    av_freep(&avctx->subtitle_header);
-
-    av_frame_free(&avci->to_free);
-    av_frame_free(&avci->compat_decode_frame);
-    av_frame_free(&avci->buffer_frame);
-    av_packet_free(&avci->compat_encode_packet);
-    av_packet_free(&avci->buffer_pkt);
-    av_packet_free(&avci->last_pkt_props);
-
-    av_packet_free(&avci->ds.in_pkt);
-    av_frame_free(&avci->es.in_frame);
-    av_bsf_free(&avci->bsf);
-
-    av_buffer_unref(&avci->pool);
-    av_freep(&avci);
-    avctx->internal = NULL;
-    avctx->codec = NULL;
-    goto end;
-}
-
-void avcodec_flush_buffers(AVCodecContext *avctx)
-{
-    AVCodecInternal *avci = avctx->internal;
-
-    if (av_codec_is_encoder(avctx->codec)) {
-        int caps = avctx->codec->capabilities;
-
-        if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
-            // Only encoders that explicitly declare support for it can be
-            // flushed. Otherwise, this is a no-op.
-            av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
-                   "that doesn't support it\n");
-            return;
-        }
-
-        // We haven't implemented flushing for frame-threaded encoders.
-        av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
-    }
-
-    avci->draining      = 0;
-    avci->draining_done = 0;
-    avci->nb_draining_errors = 0;
-    av_frame_unref(avci->buffer_frame);
-    av_frame_unref(avci->compat_decode_frame);
-    av_packet_unref(avci->compat_encode_packet);
-    av_packet_unref(avci->buffer_pkt);
-
-    av_frame_unref(avci->es.in_frame);
-    av_packet_unref(avci->ds.in_pkt);
-
-    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
-        ff_thread_flush(avctx);
-    else if (avctx->codec->flush)
-        avctx->codec->flush(avctx);
-
-    avctx->pts_correction_last_pts =
-    avctx->pts_correction_last_dts = INT64_MIN;
-
-    if (av_codec_is_decoder(avctx->codec))
-        av_bsf_flush(avci->bsf);
-
-    if (!avctx->refcounted_frames)
-        av_frame_unref(avci->to_free);
-}
-
-void avsubtitle_free(AVSubtitle *sub)
-{
-    int i;
-
-    for (i = 0; i < sub->num_rects; i++) {
-        av_freep(&sub->rects[i]->data[0]);
-        av_freep(&sub->rects[i]->data[1]);
-        av_freep(&sub->rects[i]->data[2]);
-        av_freep(&sub->rects[i]->data[3]);
-        av_freep(&sub->rects[i]->text);
-        av_freep(&sub->rects[i]->ass);
-        av_freep(&sub->rects[i]);
-    }
-
-    av_freep(&sub->rects);
-
-    memset(sub, 0, sizeof(*sub));
-}
-
-av_cold int avcodec_close(AVCodecContext *avctx)
-{
-    int i;
-
-    if (!avctx)
-        return 0;
-
-    if (avcodec_is_open(avctx)) {
-        if (CONFIG_FRAME_THREAD_ENCODER &&
-            avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
-            ff_frame_thread_encoder_free(avctx);
-        }
-        if (HAVE_THREADS && avctx->internal->thread_ctx)
-            ff_thread_free(avctx);
-        if (avctx->codec && avctx->codec->close)
-            avctx->codec->close(avctx);
-        avctx->internal->byte_buffer_size = 0;
-        av_freep(&avctx->internal->byte_buffer);
-        av_frame_free(&avctx->internal->to_free);
-        av_frame_free(&avctx->internal->compat_decode_frame);
-        av_frame_free(&avctx->internal->buffer_frame);
-        av_packet_free(&avctx->internal->compat_encode_packet);
-        av_packet_free(&avctx->internal->buffer_pkt);
-        av_packet_free(&avctx->internal->last_pkt_props);
-        avpriv_packet_list_free(&avctx->internal->pkt_props,
-                                &avctx->internal->pkt_props_tail);
-
-        av_packet_free(&avctx->internal->ds.in_pkt);
-        av_frame_free(&avctx->internal->es.in_frame);
-
-        av_buffer_unref(&avctx->internal->pool);
-
-        if (avctx->hwaccel && avctx->hwaccel->uninit)
-            avctx->hwaccel->uninit(avctx);
-        av_freep(&avctx->internal->hwaccel_priv_data);
-
-        av_bsf_free(&avctx->internal->bsf);
-
-        av_freep(&avctx->internal);
-    }
-
-    for (i = 0; i < avctx->nb_coded_side_data; i++)
-        av_freep(&avctx->coded_side_data[i].data);
-    av_freep(&avctx->coded_side_data);
-    avctx->nb_coded_side_data = 0;
-
-    av_buffer_unref(&avctx->hw_frames_ctx);
-    av_buffer_unref(&avctx->hw_device_ctx);
-
-    if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
-        av_opt_free(avctx->priv_data);
-    av_opt_free(avctx);
-    av_freep(&avctx->priv_data);
-    if (av_codec_is_encoder(avctx->codec)) {
-        av_freep(&avctx->extradata);
-#if FF_API_CODED_FRAME
-FF_DISABLE_DEPRECATION_WARNINGS
-        av_frame_free(&avctx->coded_frame);
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-    }
-    avctx->codec = NULL;
-    avctx->active_thread_type = 0;
-
-    return 0;
-}
-
 const char *avcodec_get_name(enum AVCodecID id)
 {
     const AVCodecDescriptor *cd;
@@ -1217,223 +453,6 @@ const char *avcodec_get_name(enum AVCodecID id)
     return "unknown_codec";
 }
 
-#if FF_API_TAG_STRING
-size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
-{
-    int i, len, ret = 0;
-
-#define TAG_PRINT(x)                                              \
-    (((x) >= '0' && (x) <= '9') ||                                \
-     ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') ||  \
-     ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
-
-    for (i = 0; i < 4; i++) {
-        len = snprintf(buf, buf_size,
-                       TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
-        buf        += len;
-        buf_size    = buf_size > len ? buf_size - len : 0;
-        ret        += len;
-        codec_tag >>= 8;
-    }
-    return ret;
-}
-#endif
-
-void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
-{
-    const char *codec_type;
-    const char *codec_name;
-    const char *profile = NULL;
-    int64_t bitrate;
-    int new_line = 0;
-    AVRational display_aspect_ratio;
-    const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
-
-    if (!buf || buf_size <= 0)
-        return;
-    codec_type = av_get_media_type_string(enc->codec_type);
-    codec_name = avcodec_get_name(enc->codec_id);
-    profile = avcodec_profile_name(enc->codec_id, enc->profile);
-
-    snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
-             codec_name);
-    buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
-
-    if (enc->codec && strcmp(enc->codec->name, codec_name))
-        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
-
-    if (profile)
-        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
-    if (   enc->codec_type == AVMEDIA_TYPE_VIDEO
-        && av_log_get_level() >= AV_LOG_VERBOSE
-        && enc->refs)
-        snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 ", %d reference frame%s",
-                 enc->refs, enc->refs > 1 ? "s" : "");
-
-    if (enc->codec_tag)
-        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
-                 av_fourcc2str(enc->codec_tag), enc->codec_tag);
-
-    switch (enc->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-        {
-            char detail[256] = "(";
-
-            av_strlcat(buf, separator, buf_size);
-
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
-                     av_get_pix_fmt_name(enc->pix_fmt));
-            if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
-                enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
-                av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
-            if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
-                av_strlcatf(detail, sizeof(detail), "%s, ",
-                            av_color_range_name(enc->color_range));
-
-            if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
-                enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
-                enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
-                if (enc->colorspace != (int)enc->color_primaries ||
-                    enc->colorspace != (int)enc->color_trc) {
-                    new_line = 1;
-                    av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
-                                av_color_space_name(enc->colorspace),
-                                av_color_primaries_name(enc->color_primaries),
-                                av_color_transfer_name(enc->color_trc));
-                } else
-                    av_strlcatf(detail, sizeof(detail), "%s, ",
-                                av_get_colorspace_name(enc->colorspace));
-            }
-
-            if (enc->field_order != AV_FIELD_UNKNOWN) {
-                const char *field_order = "progressive";
-                if (enc->field_order == AV_FIELD_TT)
-                    field_order = "top first";
-                else if (enc->field_order == AV_FIELD_BB)
-                    field_order = "bottom first";
-                else if (enc->field_order == AV_FIELD_TB)
-                    field_order = "top coded first (swapped)";
-                else if (enc->field_order == AV_FIELD_BT)
-                    field_order = "bottom coded first (swapped)";
-
-                av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
-            }
-
-            if (av_log_get_level() >= AV_LOG_VERBOSE &&
-                enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
-                av_strlcatf(detail, sizeof(detail), "%s, ",
-                            av_chroma_location_name(enc->chroma_sample_location));
-
-            if (strlen(detail) > 1) {
-                detail[strlen(detail) - 2] = 0;
-                av_strlcatf(buf, buf_size, "%s)", detail);
-            }
-        }
-
-        if (enc->width) {
-            av_strlcat(buf, new_line ? separator : ", ", buf_size);
-
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     "%dx%d",
-                     enc->width, enc->height);
-
-            if (av_log_get_level() >= AV_LOG_VERBOSE &&
-                (enc->width != enc->coded_width ||
-                 enc->height != enc->coded_height))
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         " (%dx%d)", enc->coded_width, enc->coded_height);
-
-            if (enc->sample_aspect_ratio.num) {
-                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
-                          enc->width * (int64_t)enc->sample_aspect_ratio.num,
-                          enc->height * (int64_t)enc->sample_aspect_ratio.den,
-                          1024 * 1024);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         " [SAR %d:%d DAR %d:%d]",
-                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
-                         display_aspect_ratio.num, display_aspect_ratio.den);
-            }
-            if (av_log_get_level() >= AV_LOG_DEBUG) {
-                int g = av_gcd(enc->time_base.num, enc->time_base.den);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", %d/%d",
-                         enc->time_base.num / g, enc->time_base.den / g);
-            }
-        }
-        if (encode) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", q=%d-%d", enc->qmin, enc->qmax);
-        } else {
-            if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", Closed Captions");
-            if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", lossless");
-        }
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        av_strlcat(buf, separator, buf_size);
-
-        if (enc->sample_rate) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     "%d Hz, ", enc->sample_rate);
-        }
-        av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
-        if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %s", av_get_sample_fmt_name(enc->sample_fmt));
-        }
-        if (   enc->bits_per_raw_sample > 0
-            && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     " (%d bit)", enc->bits_per_raw_sample);
-        if (av_log_get_level() >= AV_LOG_VERBOSE) {
-            if (enc->initial_padding)
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", delay %d", enc->initial_padding);
-            if (enc->trailing_padding)
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", padding %d", enc->trailing_padding);
-        }
-        break;
-    case AVMEDIA_TYPE_DATA:
-        if (av_log_get_level() >= AV_LOG_DEBUG) {
-            int g = av_gcd(enc->time_base.num, enc->time_base.den);
-            if (g)
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         ", %d/%d",
-                         enc->time_base.num / g, enc->time_base.den / g);
-        }
-        break;
-    case AVMEDIA_TYPE_SUBTITLE:
-        if (enc->width)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %dx%d", enc->width, enc->height);
-        break;
-    default:
-        return;
-    }
-    if (encode) {
-        if (enc->flags & AV_CODEC_FLAG_PASS1)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 1");
-        if (enc->flags & AV_CODEC_FLAG_PASS2)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 2");
-    }
-    bitrate = get_bit_rate(enc);
-    if (bitrate != 0) {
-        snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 ", %"PRId64" kb/s", bitrate / 1000);
-    } else if (enc->rc_max_rate > 0) {
-        snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
-    }
-}
-
 const char *av_get_profile_name(const AVCodec *codec, int profile)
 {
     const AVProfile *p;
@@ -1462,27 +481,6 @@ const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
     return NULL;
 }
 
-unsigned avcodec_version(void)
-{
-    av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
-    av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
-    av_assert0(AV_CODEC_ID_SRT==94216);
-    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
-
-    return LIBAVCODEC_VERSION_INT;
-}
-
-const char *avcodec_configuration(void)
-{
-    return FFMPEG_CONFIGURATION;
-}
-
-const char *avcodec_license(void)
-{
-#define LICENSE_PREFIX "libavcodec license: "
-    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
-}
-
 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
 {
     switch (codec_id) {
@@ -1511,6 +509,7 @@ int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
     case AV_CODEC_ID_PCM_VIDC:
     case AV_CODEC_ID_PCM_S8:
     case AV_CODEC_ID_PCM_S8_PLANAR:
+    case AV_CODEC_ID_PCM_SGA:
     case AV_CODEC_ID_PCM_U8:
     case AV_CODEC_ID_SDX2_DPCM:
     case AV_CODEC_ID_DERF_DPCM:
@@ -1632,14 +631,10 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
             return 256 * sr / 245;
         else if (id == AV_CODEC_ID_DST)
             return 588 * sr / 44100;
-
-        if (ch > 0) {
-            /* calc from sample rate and channels */
-            if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
-                if (sr / 22050 > 22)
-                    return 0;
-                return (480 << (sr / 22050)) / ch;
-            }
+        else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
+            if (sr / 22050 > 22)
+                return 0;
+            return (480 << (sr / 22050));
         }
 
         if (id == AV_CODEC_ID_MP3)
@@ -1689,7 +684,10 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
                 return frame_bytes / (9 * ch) * 16;
             case AV_CODEC_ID_ADPCM_PSX:
             case AV_CODEC_ID_ADPCM_DTK:
-                return frame_bytes / (16 * ch) * 28;
+                frame_bytes /= 16 * ch;
+                if (frame_bytes > INT_MAX / 28)
+                    return 0;
+                return frame_bytes * 28;
             case AV_CODEC_ID_ADPCM_4XM:
             case AV_CODEC_ID_ADPCM_IMA_DAT4:
             case AV_CODEC_ID_ADPCM_IMA_ISS:
@@ -1735,11 +733,15 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
             if (ba > 0) {
                 /* calc from frame_bytes, channels, and block_align */
                 int blocks = frame_bytes / ba;
+                int64_t tmp;
                 switch (id) {
                 case AV_CODEC_ID_ADPCM_IMA_WAV:
                     if (bps < 2 || bps > 5)
                         return 0;
-                    return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
+                    tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
+                    if (tmp != (int)tmp)
+                        return 0;
+                    return tmp;
                 case AV_CODEC_ID_ADPCM_IMA_DK3:
                     return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
                 case AV_CODEC_ID_ADPCM_IMA_DK4:
@@ -1747,7 +749,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
                 case AV_CODEC_ID_ADPCM_IMA_RAD:
                     return blocks * ((ba - 4 * ch) * 2 / ch);
                 case AV_CODEC_ID_ADPCM_MS:
-                    return blocks * (2 + (ba - 7 * ch) * 2 / ch);
+                    return blocks * (2 + (ba - 7 * ch) * 2LL / ch);
                 case AV_CODEC_ID_ADPCM_MTAF:
                     return blocks * (ba - 16) * 2 / ch;
                 }
@@ -1843,24 +845,6 @@ const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
     return &codec->hw_configs[index]->public;
 }
 
-#if FF_API_USER_VISIBLE_AVHWACCEL
-AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
-{
-    return NULL;
-}
-
-void av_register_hwaccel(AVHWAccel *hwaccel)
-{
-}
-#endif
-
-#if FF_API_LOCKMGR
-int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
-{
-    return 0;
-}
-#endif
-
 unsigned int avpriv_toupper4(unsigned int x)
 {
     return av_toupper(x & 0xFF) +
@@ -1946,11 +930,6 @@ void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, in
 
 #endif
 
-int avcodec_is_open(AVCodecContext *s)
-{
-    return !!s->internal;
-}
-
 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
                                       const uint8_t *end,
                                       uint32_t *av_restrict state)
@@ -2029,179 +1008,6 @@ AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
     return props;
 }
 
-static void codec_parameters_reset(AVCodecParameters *par)
-{
-    av_freep(&par->extradata);
-
-    memset(par, 0, sizeof(*par));
-
-    par->codec_type          = AVMEDIA_TYPE_UNKNOWN;
-    par->codec_id            = AV_CODEC_ID_NONE;
-    par->format              = -1;
-    par->field_order         = AV_FIELD_UNKNOWN;
-    par->color_range         = AVCOL_RANGE_UNSPECIFIED;
-    par->color_primaries     = AVCOL_PRI_UNSPECIFIED;
-    par->color_trc           = AVCOL_TRC_UNSPECIFIED;
-    par->color_space         = AVCOL_SPC_UNSPECIFIED;
-    par->chroma_location     = AVCHROMA_LOC_UNSPECIFIED;
-    par->sample_aspect_ratio = (AVRational){ 0, 1 };
-    par->profile             = FF_PROFILE_UNKNOWN;
-    par->level               = FF_LEVEL_UNKNOWN;
-}
-
-AVCodecParameters *avcodec_parameters_alloc(void)
-{
-    AVCodecParameters *par = av_mallocz(sizeof(*par));
-
-    if (!par)
-        return NULL;
-    codec_parameters_reset(par);
-    return par;
-}
-
-void avcodec_parameters_free(AVCodecParameters **ppar)
-{
-    AVCodecParameters *par = *ppar;
-
-    if (!par)
-        return;
-    codec_parameters_reset(par);
-
-    av_freep(ppar);
-}
-
-int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
-{
-    codec_parameters_reset(dst);
-    memcpy(dst, src, sizeof(*dst));
-
-    dst->extradata      = NULL;
-    dst->extradata_size = 0;
-    if (src->extradata) {
-        dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
-        if (!dst->extradata)
-            return AVERROR(ENOMEM);
-        memcpy(dst->extradata, src->extradata, src->extradata_size);
-        dst->extradata_size = src->extradata_size;
-    }
-
-    return 0;
-}
-
-int avcodec_parameters_from_context(AVCodecParameters *par,
-                                    const AVCodecContext *codec)
-{
-    codec_parameters_reset(par);
-
-    par->codec_type = codec->codec_type;
-    par->codec_id   = codec->codec_id;
-    par->codec_tag  = codec->codec_tag;
-
-    par->bit_rate              = codec->bit_rate;
-    par->bits_per_coded_sample = codec->bits_per_coded_sample;
-    par->bits_per_raw_sample   = codec->bits_per_raw_sample;
-    par->profile               = codec->profile;
-    par->level                 = codec->level;
-
-    switch (par->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-        par->format              = codec->pix_fmt;
-        par->width               = codec->width;
-        par->height              = codec->height;
-        par->field_order         = codec->field_order;
-        par->color_range         = codec->color_range;
-        par->color_primaries     = codec->color_primaries;
-        par->color_trc           = codec->color_trc;
-        par->color_space         = codec->colorspace;
-        par->chroma_location     = codec->chroma_sample_location;
-        par->sample_aspect_ratio = codec->sample_aspect_ratio;
-        par->video_delay         = codec->has_b_frames;
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        par->format           = codec->sample_fmt;
-        par->channel_layout   = codec->channel_layout;
-        par->channels         = codec->channels;
-        par->sample_rate      = codec->sample_rate;
-        par->block_align      = codec->block_align;
-        par->frame_size       = codec->frame_size;
-        par->initial_padding  = codec->initial_padding;
-        par->trailing_padding = codec->trailing_padding;
-        par->seek_preroll     = codec->seek_preroll;
-        break;
-    case AVMEDIA_TYPE_SUBTITLE:
-        par->width  = codec->width;
-        par->height = codec->height;
-        break;
-    }
-
-    if (codec->extradata) {
-        par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
-        if (!par->extradata)
-            return AVERROR(ENOMEM);
-        memcpy(par->extradata, codec->extradata, codec->extradata_size);
-        par->extradata_size = codec->extradata_size;
-    }
-
-    return 0;
-}
-
-int avcodec_parameters_to_context(AVCodecContext *codec,
-                                  const AVCodecParameters *par)
-{
-    codec->codec_type = par->codec_type;
-    codec->codec_id   = par->codec_id;
-    codec->codec_tag  = par->codec_tag;
-
-    codec->bit_rate              = par->bit_rate;
-    codec->bits_per_coded_sample = par->bits_per_coded_sample;
-    codec->bits_per_raw_sample   = par->bits_per_raw_sample;
-    codec->profile               = par->profile;
-    codec->level                 = par->level;
-
-    switch (par->codec_type) {
-    case AVMEDIA_TYPE_VIDEO:
-        codec->pix_fmt                = par->format;
-        codec->width                  = par->width;
-        codec->height                 = par->height;
-        codec->field_order            = par->field_order;
-        codec->color_range            = par->color_range;
-        codec->color_primaries        = par->color_primaries;
-        codec->color_trc              = par->color_trc;
-        codec->colorspace             = par->color_space;
-        codec->chroma_sample_location = par->chroma_location;
-        codec->sample_aspect_ratio    = par->sample_aspect_ratio;
-        codec->has_b_frames           = par->video_delay;
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        codec->sample_fmt       = par->format;
-        codec->channel_layout   = par->channel_layout;
-        codec->channels         = par->channels;
-        codec->sample_rate      = par->sample_rate;
-        codec->block_align      = par->block_align;
-        codec->frame_size       = par->frame_size;
-        codec->delay            =
-        codec->initial_padding  = par->initial_padding;
-        codec->trailing_padding = par->trailing_padding;
-        codec->seek_preroll     = par->seek_preroll;
-        break;
-    case AVMEDIA_TYPE_SUBTITLE:
-        codec->width  = par->width;
-        codec->height = par->height;
-        break;
-    }
-
-    if (par->extradata) {
-        av_freep(&codec->extradata);
-        codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
-        if (!codec->extradata)
-            return AVERROR(ENOMEM);
-        memcpy(codec->extradata, par->extradata, par->extradata_size);
-        codec->extradata_size = par->extradata_size;
-    }
-
-    return 0;
-}
-
 static unsigned bcd2uint(uint8_t bcd)
 {
     unsigned low  = bcd & 0xf;