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55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
#include "decoder.h"
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#include <libavformat/avformat.h>
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#include "events.h"
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#include "video_buffer.h"
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#include "util/log.h"
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void
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decoder_init(struct decoder *decoder, struct video_buffer *vb) {
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decoder->video_buffer = vb;
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}
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bool
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decoder_open(struct decoder *decoder, const AVCodec *codec) {
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decoder->codec_ctx = avcodec_alloc_context3(codec);
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if (!decoder->codec_ctx) {
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LOGC("Could not allocate decoder context");
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return false;
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}
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if (avcodec_open2(decoder->codec_ctx, codec, NULL) < 0) {
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LOGE("Could not open codec");
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avcodec_free_context(&decoder->codec_ctx);
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return false;
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}
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return true;
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}
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void
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decoder_close(struct decoder *decoder) {
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avcodec_close(decoder->codec_ctx);
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avcodec_free_context(&decoder->codec_ctx);
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}
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bool
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decoder_push(struct decoder *decoder, const AVPacket *packet) {
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int ret;
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if ((ret = avcodec_send_packet(decoder->codec_ctx, packet)) < 0) {
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LOGE("Could not send video packet: %d", ret);
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return false;
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}
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ret = avcodec_receive_frame(decoder->codec_ctx,
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decoder->video_buffer->producer_frame);
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if (!ret) {
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// a frame was received
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video_buffer_producer_offer_frame(decoder->video_buffer);
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} else if (ret != AVERROR(EAGAIN)) {
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LOGE("Could not receive video frame: %d", ret);
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return false;
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}
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return true;
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}
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