-#include "errno.h"
+/*
+ * AVCodecContext functions for libavcodec
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AVCodecContext functions for libavcodec
+ */
+
+#include "config.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include "libavutil/thread.h"
#include "avcodec.h"
+#include "decode.h"
+#include "encode.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+#include "thread.h"
-#ifndef MKTAG
-#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
-#endif
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+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 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;
+}
-// private structure used to hide all internal memory allocations
-// and structures used for de/encoding - end user should
-// never see any complicated structure
-typedef struct private_handle
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
{
- AVCodec* avcodec;
- AVCodecContext avcontext;
- struct private_handle* next;
- struct private_handle* prev;
-} private_handle_t;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int r = func(c, arg, i, 0);
+ if (ret)
+ ret[i] = r;
+ }
+ emms_c();
+ return 0;
+}
+
+static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
+
+static void lock_avcodec(const AVCodec *codec)
+{
+ if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+ ff_mutex_lock(&codec_mutex);
+}
-static private_handle_t* handle_first = 0;
+static void unlock_avcodec(const AVCodec *codec)
+{
+ if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+ ff_mutex_unlock(&codec_mutex);
+}
-static AVCodec* avcodec_find_by_fcc(uint32_t fcc)
+static int64_t get_bit_rate(AVCodecContext *ctx)
{
- // translation table
- static const struct fcc_to_avcodecid {
- enum CodecID codec;
- uint32_t list[4]; // maybe we could map more fcc to same codec
- } lc[] = {
- { CODEC_ID_H263, { MKTAG('U', '2', '6', '3'), 0 } },
- { CODEC_ID_H263I, { MKTAG('I', '2', '6', '3'), 0 } },
- { CODEC_ID_MSMPEG4V3, { MKTAG('D', 'I', 'V', '3'), 0 } },
- { CODEC_ID_MPEG4, { MKTAG('D', 'I', 'V', 'X'), MKTAG('D', 'X', '5', '0'), 0 } },
- { CODEC_ID_MSMPEG4V2, { MKTAG('M', 'P', '4', '2'), 0 } },
- { CODEC_ID_MJPEG, { MKTAG('M', 'J', 'P', 'G'), 0 } },
- { CODEC_ID_MPEG1VIDEO, { MKTAG('P', 'I', 'M', '1'), 0 } },
- { CODEC_ID_AC3, { 0x2000, 0 } },
- { CODEC_ID_MP2, { 0x50, 0x55, 0 } },
-
- { CODEC_ID_NONE, {0}}
- };
- const struct fcc_to_avcodecid* c;
-
- for (c = lc; c->codec != CODEC_ID_NONE; c++)
- {
- int i = 0;
- while (c->list[i] != 0)
- if (c->list[i++] == fcc)
- return avcodec_find_decoder(c->codec);
- }
-
- return NULL;
+ 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);
+ if (bits_per_sample) {
+ bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
+ if (bit_rate > INT64_MAX / bits_per_sample) {
+ bit_rate = 0;
+ } else
+ bit_rate *= bits_per_sample;
+ } else
+ bit_rate = ctx->bit_rate;
+ break;
+ default:
+ bit_rate = 0;
+ break;
+ }
+ return bit_rate;
}
-static private_handle_t* create_handle()
+int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
{
- private_handle_t* t = malloc(sizeof(private_handle_t));
- if (!t)
- return NULL;
- memset(t, 0, sizeof(*t));
-
- // register and fill
- if (!handle_first)
- {
- avcodec_init();
- avcodec_register_all();
- handle_first = t;
+ int ret = 0;
+ AVDictionary *tmp = NULL;
+ 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->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");
+ return AVERROR(EINVAL);
+ }
+ avctx->codec = codec;
+
+ if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
+ return AVERROR(EINVAL);
+
+ if (options)
+ av_dict_copy(&tmp, *options, 0);
+
+ lock_avcodec(codec);
+
+ avci = av_mallocz(sizeof(*avci));
+ if (!avci) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+ avctx->internal = avci;
+
+ 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();
+ avci->pkt_props = av_fifo_alloc(sizeof(*avci->last_pkt_props));
+ if (!avci->buffer_frame || !avci->buffer_pkt ||
+ !avci->es.in_frame || !avci->ds.in_pkt ||
+ !avci->last_pkt_props || !avci->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 (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->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 (av_codec_is_encoder(avctx->codec))
+ ret = ff_encode_preinit(avctx);
else
- {
- t->prev = handle_first->next;
- handle_first->next = t;
- t->next = handle_first;
+ ret = ff_decode_preinit(avctx);
+ if (ret < 0)
+ goto free_and_end;
+
+ 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)) {
+ 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);
+ lock_avcodec(codec);
+ 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->caps_internal & FF_CODEC_CAP_AUTO_THREADS))
+ avctx->thread_count = 1;
- return t;
+ if (!(avctx->active_thread_type & FF_THREAD_FRAME) ||
+ avci->frame_thread_encoder) {
+ if (avctx->codec->init) {
+ ret = avctx->codec->init(avctx);
+ if (ret < 0) {
+ avci->needs_close = avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP;
+ goto free_and_end;
+ }
+ }
+ avci->needs_close = 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 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:
+ unlock_avcodec(codec);
+ if (options) {
+ av_dict_free(options);
+ *options = tmp;
+ }
+
+ return ret;
+free_and_end:
+ avcodec_close(avctx);
+ av_dict_free(&tmp);
+ 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_packet_unref(avci->buffer_pkt);
+
+ av_packet_unref(avci->last_pkt_props);
+ while (av_fifo_size(avci->pkt_props) >= sizeof(*avci->last_pkt_props)) {
+ av_fifo_generic_read(avci->pkt_props,
+ avci->last_pkt_props, sizeof(*avci->last_pkt_props),
+ NULL);
+ av_packet_unref(avci->last_pkt_props);
+ }
+ av_fifo_reset(avci->pkt_props);
+
+ 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);
}
-static void destroy_handle(private_handle_t* handle)
+void avsubtitle_free(AVSubtitle *sub)
{
- if (handle)
- {
- if (handle->avcodec)
- {
- avcodec_close(&handle->avcontext);
- }
- free(handle);
+ int i;
- // count referencies
+ 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));
}
-int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout)
+av_cold int avcodec_close(AVCodecContext *avctx)
{
- AVCodecContext* ctx = handle;
- switch (cmd)
- {
- case AVC_OPEN_BY_NAME:
- {
- // pin char* codec name
- private_handle_t* handle = create_handle();
- (private_handle_t**)pout = handle;
- if (!handle)
- return -ENOMEM;
- if (!handle->avcodec)
- {
- destroy_handle(handle);
- (private_handle_t**)pout = NULL;
- return -1;// better error
- }
- return 0;
- }
- case AVC_OPEN_BY_CODEC_ID:
- {
- // pin uint32_t codec fourcc
- private_handle_t* handle = create_handle();
- (private_handle_t**)pout = handle;
- if (!handle)
- return -ENOMEM;
-
- if (!handle->avcodec)
- {
- destroy_handle(handle);
- (private_handle_t**)pout = NULL;
- return -1;// better error
- }
- return 0;
- }
- case AVC_OPEN_BY_FOURCC:
- {
- // pin uint32_t codec fourcc
- private_handle_t* handle = create_handle();
- (private_handle_t**)pout = handle;
- if (!handle)
- return -ENOMEM;
- handle->avcodec = avcodec_find_by_fcc((uint32_t) pin);
- if (!handle->avcodec)
- {
- destroy_handle(handle);
- (private_handle_t**)pout = NULL;
- return -1;// better error
- }
- return 0;
- }
- case AVC_CLOSE:
- // uninit part
- // eventually close all allocated space if this was last
- // instance
- destroy_handle(handle);
- break;
-
- case AVC_FLUSH:
- break;
-
- case AVC_DECODE:
- break;
-
- case AVC_ENCODE:
- break;
-
- case AVC_GET_VERSION:
- (int*) pout = 500;
- default:
- return -1;
+ int i;
+ if (!avctx)
+ return 0;
+
+ if (avcodec_is_open(avctx)) {
+ AVCodecInternal *avci = avctx->internal;
+
+ if (CONFIG_FRAME_THREAD_ENCODER &&
+ avci->frame_thread_encoder && avctx->thread_count > 1) {
+ ff_frame_thread_encoder_free(avctx);
+ }
+ if (HAVE_THREADS && avci->thread_ctx)
+ ff_thread_free(avctx);
+ if (avci->needs_close && avctx->codec->close)
+ avctx->codec->close(avctx);
+ avci->byte_buffer_size = 0;
+ av_freep(&avci->byte_buffer);
+ av_frame_free(&avci->buffer_frame);
+ av_packet_free(&avci->buffer_pkt);
+ if (avci->pkt_props) {
+ while (av_fifo_size(avci->pkt_props) >= sizeof(*avci->last_pkt_props)) {
+ av_packet_unref(avci->last_pkt_props);
+ av_fifo_generic_read(avci->pkt_props, avci->last_pkt_props,
+ sizeof(*avci->last_pkt_props), NULL);
+ }
+ av_fifo_freep(&avci->pkt_props);
+ }
+ av_packet_free(&avci->last_pkt_props);
+
+ av_packet_free(&avci->ds.in_pkt);
+ av_frame_free(&avci->es.in_frame);
+
+ av_buffer_unref(&avci->pool);
+
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avci->hwaccel_priv_data);
+
+ av_bsf_free(&avci->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);
+ avctx->extradata_size = 0;
+ } else if (av_codec_is_decoder(avctx->codec))
+ av_freep(&avctx->subtitle_header);
+
+ avctx->codec = NULL;
+ avctx->active_thread_type = 0;
+
return 0;
}
+
+static const char *unknown_if_null(const char *str)
+{
+ return str ? str : "unknown";
+}
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
+{
+ const char *codec_type;
+ const char *codec_name;
+ const char *profile = NULL;
+ AVBPrint bprint;
+ int64_t bitrate;
+ int new_line = 0;
+ AVRational display_aspect_ratio;
+ const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
+ const char *str;
+
+ if (!buf || buf_size <= 0)
+ return;
+ av_bprint_init_for_buffer(&bprint, buf, buf_size);
+ 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);
+
+ av_bprintf(&bprint, "%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))
+ av_bprintf(&bprint, " (%s)", enc->codec->name);
+
+ if (profile)
+ av_bprintf(&bprint, " (%s)", profile);
+ if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
+ && av_log_get_level() >= AV_LOG_VERBOSE
+ && enc->refs)
+ av_bprintf(&bprint, ", %d reference frame%s",
+ enc->refs, enc->refs > 1 ? "s" : "");
+
+ if (enc->codec_tag)
+ av_bprintf(&bprint, " (%s / 0x%04X)",
+ av_fourcc2str(enc->codec_tag), enc->codec_tag);
+
+ switch (enc->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ {
+ unsigned len;
+
+ av_bprintf(&bprint, "%s%s", separator,
+ enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
+ unknown_if_null(av_get_pix_fmt_name(enc->pix_fmt)));
+
+ av_bprint_chars(&bprint, '(', 1);
+ len = bprint.len;
+
+ /* The following check ensures that '(' has been written
+ * and therefore allows us to erase it if it turns out
+ * to be unnecessary. */
+ if (!av_bprint_is_complete(&bprint))
+ return;
+
+ 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_bprintf(&bprint, "%d bpc, ", enc->bits_per_raw_sample);
+ if (enc->color_range != AVCOL_RANGE_UNSPECIFIED &&
+ (str = av_color_range_name(enc->color_range)))
+ av_bprintf(&bprint, "%s, ", str);
+
+ if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
+ enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
+ enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
+ const char *col = unknown_if_null(av_color_space_name(enc->colorspace));
+ const char *pri = unknown_if_null(av_color_primaries_name(enc->color_primaries));
+ const char *trc = unknown_if_null(av_color_transfer_name(enc->color_trc));
+ if (strcmp(col, pri) || strcmp(col, trc)) {
+ new_line = 1;
+ av_bprintf(&bprint, "%s/%s/%s, ", col, pri, trc);
+ } else
+ av_bprintf(&bprint, "%s, ", col);
+ }
+
+ 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_bprintf(&bprint, "%s, ", field_order);
+ }
+
+ if (av_log_get_level() >= AV_LOG_VERBOSE &&
+ enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED &&
+ (str = av_chroma_location_name(enc->chroma_sample_location)))
+ av_bprintf(&bprint, "%s, ", str);
+
+ if (len == bprint.len) {
+ bprint.str[len - 1] = '\0';
+ bprint.len--;
+ } else {
+ if (bprint.len - 2 < bprint.size) {
+ /* Erase the last ", " */
+ bprint.len -= 2;
+ bprint.str[bprint.len] = '\0';
+ }
+ av_bprint_chars(&bprint, ')', 1);
+ }
+ }
+
+ if (enc->width) {
+ av_bprintf(&bprint, "%s%dx%d", new_line ? separator : ", ",
+ enc->width, enc->height);
+
+ if (av_log_get_level() >= AV_LOG_VERBOSE &&
+ (enc->width != enc->coded_width ||
+ enc->height != enc->coded_height))
+ av_bprintf(&bprint, " (%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);
+ av_bprintf(&bprint, " [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);
+ av_bprintf(&bprint, ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ }
+ if (encode) {
+ av_bprintf(&bprint, ", q=%d-%d", enc->qmin, enc->qmax);
+ } else {
+ if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
+ av_bprintf(&bprint, ", Closed Captions");
+ if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
+ av_bprintf(&bprint, ", lossless");
+ }
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ av_bprintf(&bprint, "%s", separator);
+
+ if (enc->sample_rate) {
+ av_bprintf(&bprint, "%d Hz, ", enc->sample_rate);
+ }
+ av_bprint_channel_layout(&bprint, enc->channels, enc->channel_layout);
+ if (enc->sample_fmt != AV_SAMPLE_FMT_NONE &&
+ (str = av_get_sample_fmt_name(enc->sample_fmt))) {
+ av_bprintf(&bprint, ", %s", str);
+ }
+ if ( enc->bits_per_raw_sample > 0
+ && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
+ av_bprintf(&bprint, " (%d bit)", enc->bits_per_raw_sample);
+ if (av_log_get_level() >= AV_LOG_VERBOSE) {
+ if (enc->initial_padding)
+ av_bprintf(&bprint, ", delay %d", enc->initial_padding);
+ if (enc->trailing_padding)
+ av_bprintf(&bprint, ", 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)
+ av_bprintf(&bprint, ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ if (enc->width)
+ av_bprintf(&bprint, ", %dx%d", enc->width, enc->height);
+ break;
+ default:
+ return;
+ }
+ if (encode) {
+ if (enc->flags & AV_CODEC_FLAG_PASS1)
+ av_bprintf(&bprint, ", pass 1");
+ if (enc->flags & AV_CODEC_FLAG_PASS2)
+ av_bprintf(&bprint, ", pass 2");
+ }
+ bitrate = get_bit_rate(enc);
+ if (bitrate != 0) {
+ av_bprintf(&bprint, ", %"PRId64" kb/s", bitrate / 1000);
+ } else if (enc->rc_max_rate > 0) {
+ av_bprintf(&bprint, ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
+ }
+}
+
+int avcodec_is_open(AVCodecContext *s)
+{
+ return !!s->internal;
+}
projects / ffmpeg / blobdiff