examples : fix deprecated FFmpeg functions (#3073)

* Fix deprecated FFmpeg functions and free packet

* avcodec_free_context

diff --git a/examples/ffmpeg-transcode.cpp b/examples/ffmpeg-transcode.cpp
index 82566445428d57093ac262318e05e098ae6bc0cf..1fae58a4ffaa7ae1d2ae10e7174e6dd91e100cc0 100644 (file)
--- a/examples/ffmpeg-transcode.cpp
+++ b/examples/ffmpeg-transcode.cpp
@@ -194,7 +194,7 @@ static int decode_audio(struct audio_buffer *audio_buf, s16 **data, int *size)
        AVIOContext *avio_ctx;
        AVStream *stream;
        AVCodecContext *codec;
-       AVPacket packet;
+       AVPacket *packet;
        AVFrame *frame;
        struct SwrContext *swr;
        u8 *avio_ctx_buffer;
@@ -279,7 +279,11 @@ static int decode_audio(struct audio_buffer *audio_buf, s16 **data, int *size)
                return -1;
        }
 
-       av_init_packet(&packet);
+       packet=av_packet_alloc();
+       if (!packet) {
+               LOG("Error allocating the packet\n");
+               return -1;
+       }
        frame = av_frame_alloc();
        if (!frame) {
         LOG("Error allocating the frame\n");
@@ -289,8 +293,8 @@ static int decode_audio(struct audio_buffer *audio_buf, s16 **data, int *size)
        /* iterate through frames */
        *data = NULL;
        *size = 0;
-       while (av_read_frame(fmt_ctx, &packet) >= 0) {
-               avcodec_send_packet(codec, &packet);
+       while (av_read_frame(fmt_ctx, packet) >= 0) {
+               avcodec_send_packet(codec, packet);
 
                err = avcodec_receive_frame(codec, frame);
                if (err == AVERROR(EAGAIN))
@@ -301,10 +305,11 @@ static int decode_audio(struct audio_buffer *audio_buf, s16 **data, int *size)
        /* Flush any remaining conversion buffers... */
        convert_frame(swr, codec, frame, data, size, true);
 
+       av_packet_free(&packet);
        av_frame_free(&frame);
        swr_free(&swr);
     //avio_context_free(); // todo?
-       avcodec_close(codec);
+       avcodec_free_context(&codec);
        avformat_close_input(&fmt_ctx);
        avformat_free_context(fmt_ctx);